CN109233909A - A kind of method that the combustion gas that sludge cracking generates is recycled - Google Patents
A kind of method that the combustion gas that sludge cracking generates is recycled Download PDFInfo
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- CN109233909A CN109233909A CN201811173670.8A CN201811173670A CN109233909A CN 109233909 A CN109233909 A CN 109233909A CN 201811173670 A CN201811173670 A CN 201811173670A CN 109233909 A CN109233909 A CN 109233909A
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- Prior art keywords
- gas
- sludge
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- purification
- recycled
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
- C10J2300/0923—Sludge, e.g. from water treatment plant
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Sludge (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The present invention relates to sludge treatment device technical fields, a kind of more particularly to method that the combustion gas that sludge cracking generates is recycled, this method comprises the following steps: drying sludge is at mud granule, separated sludge particle generates gas, carrying out purification for the first time to gas becomes purification gas, carrying out double purification to purification gas becomes fuel gas, combustible gas storage is to air accumulator, fuel gas in air accumulator is delivered to heater, mud granule is generated by carrying out drying to sludge, mud granule, which is decomposed, by pyrolysis gasification furnace generates gas, pass through the first purification device, the effect of second purification device purifies gas, it is final to generate fuel gas, fuel gas is delivered to heater again, realize the recycling that gas is generated to sludge, it achieves energy-saving and emission reduction purposes.
Description
Technical field
The present invention relates to the combustion gas recyclings that sludge treatment device technical field more particularly to a kind of cracking of sludge generate
Method.
Background technique
With the raising of industrial development and people's consuming capacity, the generation of various sludge leads to environmental degradation, and sludge is main
Including organic sludge, such as municipal sludge, river sludge, leather sludge, paper mill sludge, printing and dyeing sludge, medical sludge, and it is above all
It is the major source that organic sludge generates, the regulation to organic sludge is an Important Project, to organic sludge treatment process
In, organic sludge is first usually poured into drying oven and is dried, drying course is needed to drying stove heating, and heating generallys use electricity
Heating, this Electric heating energy consumption, causes secondary pollution, violates the demand for development of energy-saving and emission-reduction, while being unfavorable for environment
Protection.
Summary of the invention
The shortcomings that in order to overcome energy waste existing in the prior art, the purpose of the present invention is to provide a kind of sludge to split
The method that the combustion gas that solution generates is recycled, achieves energy-saving and emission reduction purposes, while realizing the recycling of energy.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of method that the combustion gas that sludge cracking generates is recycled, this method comprises the following steps:
Step 1:
Sludge is sent through the first conveyer to drying in drying oven, mud granule and tail gas are become；
Step 2.0.1:
Step 1 treated mud granule is sent through second conveyor to decomposing in pyrolysis gasification furnace, gas is formed
And fixed residue；
Step 2.0.2:
The step 2.0.1 gas generated is delivered in the first purification device and carries out oil removing and except impurity treatment forms purification
Gas；
Step 2.0.3:
By purification gas by pipeline to the second purification device, purification gas is carried out again through the second purification device
Oil removing and remove impurity treatment, formed fuel gas；
Step 2.0.4:
In the air accumulator that the step 2.0.3 fuel gas formed is delivered to；
Step 2.0.5:
By fuel gas passes through pipeline to heater, by being placed in heater in air accumulator in step 2.0.4
Combustion adjuvant make gas fuel burning, realize the heating to drying oven.
Further, operating temperature is 110-150 ° in the drying oven of the step 1.
Further, the operating temperature of the pyrolysis gasification furnace of the step 2.0.1 is 200-520 °.
Further, the inner wall of the pyrolysis gasification furnace of the step 2.0.1 is equipped with temperature measurer, the temperature measurer and the external world
Electric cabinet electrical connection.
Further, the inside of the pyrolysis gasification furnace of the step 2.0.1 is equipped at least one agitating device, the stirring
Device is rotationally connected with the wall body of pyrolysis gasification furnace, and the agitating device is used to prevent the conglomeration of mud granule.
Further, the air accumulator input end of the step 2.0.4 is equipped with flowmeter, and the flowmeter enters for detecting
The flow of the fuel gas of air accumulator.
Further, further comprising the steps of:
Step 2.1.1:
The tail gas that step 1 generates is delivered to exhaust gas processing device through the first connecting tube
Step 2.1.2: step 2.1.1 treated tail gas is delivered in drying oven through the second connecting tube,
Step 2.1.1 treated tail gas is delivered in pyrolysis gasification furnace through third connecting tube.
Beneficial effects of the present invention: mud granule is generated by carrying out drying to sludge, is decomposed by pyrolysis gasification furnace dirty
Mud particle generates gas, is purified, is finally generated flammable to gas by the effect of the first purification device, the second purification device
Gas, then fuel gas is delivered to heater, it realizes the recycling for generating gas to sludge, reaches the mesh of energy-saving and emission-reduction
's.
Detailed description of the invention
Fig. 1 is method and step schematic diagram of the invention；
Fig. 2 is the generation of fuel gas of the invention and the schematic diagram using circulation.
Appended drawing reference includes:
100-sludge 200-mud granule, 301-gases
302-purification gas 300-fuel gas, 400-fixed residues
500-the 11-the first conveyers of 1-drying oven of tail gas
12-second conveyor 2-pyrolysis gasification furnace, 21-agitating devices
3-temperature measurer the 5-the second purification devices of the 4-the first purification device
6-air accumulator 7-heater, 8-exhaust gas processing devices
81-the first connecting tube the 82-the second connecting tube 83-third connecting tube
9-flowmeters.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further below with reference to examples and drawings
Bright, the content that embodiment refers to not is limitation of the invention.
Please refer to Fig. 1 and Fig. 2, the method that the combustion gas that a kind of sludge cracking of the invention generates is recycled, this method packet
Include following steps:
Step 1:
The organic sludge 100 of moisture content 80% is continuously conveyed through the first conveyer 11 to drying in drying oven 1,
Drying oven 1 uses oar blade type drying oven, and sludge 100 generates tail gas 500 and mud granule 200 after the drying, mud granule 200
Moisture content is lower than 30%, and drying course also generates a small amount of condensed water, and condensed water is discharged.
Step 2.0.1:
Step 1 treated mud granule 200 is sent through second conveyor 12 to decomposing in pyrolysis gasification furnace 2, shape
At gas 301 and fixed residue 400, the gas 301 of generation includes condensable gas (bio oil, vapor) and non-condensable gas
(alkanes, carbon monoxide, hydrogen, nitrogen, carbon dioxide etc.), fixed residue 400 (charcoal) are discharged after being cooled down by discharge system；
Step 2.0.2:
The gas 301 that step 2.0.1 is generated is delivered in the first purification device 4 and carries out oil removing and except impurity treatment is formed
Purification gas 302, the first purification device 4 are dusted gas 301, tar capturing, cooling, remove sour gas, obtain net
Change gas 302；
Step 2.0.3:
Purification gas 302 by pipeline to the second purification device 5, through the second purification device 5 to purification gas 302 into
Row oil removing and removes impurity treatment again, forms fuel gas 300, the second purification device 5 removes purification gas 302 again
Dirt, tar capturing, cooling, removal sour gas, obtain fuel gas 300；
Step 2.0.4:
In the air accumulator 6 that the fuel gas 300 that step 2.0.3 is formed is delivered to；
Step 2.0.5:
By fuel gas 300 is heated by pipeline to heater 7 by being placed in air accumulator 6 in step 2.0.4
Combustion adjuvant in device 7 makes fuel gas 300 burn, and realizes heating to drying oven 1, and combustion adjuvant uses high temperature heat conductive oil, can
Under the action of combustion gas body 300, thermally conductive oil firing, heat supply drying oven 1, sludge 100 is dried, initially it is not formed can
In the case where combustion gas body 300, electric energy can be used to heat drying oven 1, completes the drying of the sludge 100 in drying oven 1, etc.
The formation fuel gas 300 after a series of drying, decomposing of sludge 100, reuses the fuel gas 300 burning, completes energy
The recycling in source.
Mud granule 200 is generated by carrying out drying to sludge 100, mud granule 200 is decomposed by pyrolysis gasification furnace 2 and produces
Angry body 301 purifies gas 301 by the effect of the first purification device 4, the second purification device 5, finally generates flammable
Gas 300, then fuel gas 300 is delivered to heater 7, it realizes the recycling for generating gas to sludge 100, reaches energy conservation
The purpose of emission reduction.
Operating temperature is 110-150 ° in the drying oven 1 of the step 1, it is preferred that by the operating temperature control in drying oven 1
System carries out drying sludge 100 at 135 ° ± 3, with two tons per hour of speed.
The operating temperature of the pyrolysis gasification furnace 2 of the step 2.0.1 is 200-520 °, it is preferred that will be in pyrolysis gasification furnace 2
Operating temperature control at 500 ° ± 5, decompose mud granule 200.
The inner wall of the pyrolysis gasification furnace 2 of the step 2.0.1 is equipped with temperature measurer 3, the temperature measurer 3 and extraneous electric cabinet
Electrical connection, the setting of temperature measurer 3 achieve the purpose that monitor operating temperature in pyrolysis gasification furnace 2 in real time, when in pyrolysis gasification furnace 2
Operating temperature lower than setting temperature when, issue alarm, combustion adjuvant appropriate, such as sawdust increase to pyrolytic gasification by staff
In furnace 2, the operating temperature of pyrolysis gasification furnace 2 is improved.
The inside of the pyrolysis gasification furnace 2 of the step 2.0.1 is equipped at least one agitating device 21, the agitating device 21
It is rotationally connected with the wall body of pyrolysis gasification furnace 2, for preventing mud granule conglomeration, agitating device 21 is set the agitating device 21
It sets, is in real time stirred mud granule 200, so that mud granule 200 decomposes as far as possible, so that mud granule 200 generates
The maximum amount of gas 301.
6 input end of air accumulator of the step 2.0.4 is equipped with flowmeter 9, and the flowmeter 9 enters air accumulator for detecting
The flow of 6 fuel gas facilitates operator's statistics to enter the gas flow of the fuel gas 300 of air accumulator 6.
It is further comprising the steps of:
Step 2.1.1:
The tail gas 500 that step 1 generates is delivered to exhaust gas processing device 8 through the first connecting tube 81；
Step 2.1.2: step 2.1.1 treated tail gas is delivered in drying oven 1 through the second connecting tube 82,
Step 2.1.1 treated tail gas is delivered in pyrolysis gasification furnace 2 through third connecting tube 83.
Exhaust gas processing device 8 is set between drying oven 1 and pyrolysis gasification furnace 2, and exhaust gas processing device 8 is equipped with the first connection
Pipe 81, the second connecting tube 82 and third connecting tube 83, the first connecting tube 81 are connected to drying oven 1 and vent gas treatment processing unit 8, will
The tail gas generated in 1 course of work of drying oven is delivered in exhaust gas processing device 8, dedusting, condensation through exhaust gas processing device 8,
A portion hot gas is sent by the second connecting tube 82 to drying oven 1, and a part of hot gas is sent by third connecting tube 83 to pyrolysis gas
Change and continued to use in furnace 2, a small amount of condensing gas is discharged, and continues to realize the purpose that the circulation of tail gas reuses.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (7)
1. a kind of method that the combustion gas that sludge cracking generates is recycled, it is characterised in that: this method comprises the following steps:
Step 1:
Sludge (100) is sent through the first conveyer (11) to drying oven (1) is interior and is dried, mud granule (200) and tail are become
Gas (500)；
Step 2.0.1:
Step 1 treated mud granule (200) is sent through second conveyor (12) to decomposing in pyrolysis gasification furnace (2),
Form gas (301) and fixed residue (400)；
Step 2.0.2:
The gas (301) that step 2.0.1 is generated is delivered in the first purification device (4) and carries out oil removing and except impurity treatment is formed
Purification gas (302)；
Step 2.0.3:
By purification gas (302) by pipeline to the second purification device (5), through the second purification device (5) to purification gas
(302) it carries out oil removing again and removes impurity treatment, formed fuel gas (300)；
Step 2.0.4:
In the air accumulator (6) that the fuel gas (300) that step 2.0.3 is formed is delivered to；
Step 2.0.5:
By air accumulator (6) interior fuel gas (300) in step 2.0.4 by pipeline to heater (7), added by being placed in
Combustion adjuvant in hot device (7) makes fuel gas (300) to burn, and realizes the heating to drying oven (1).
2. the method that the combustion gas that sludge cracking according to claim 1 generates is recycled, it is characterised in that: the step
1 drying oven (1) interior operating temperature is 110-150 °.
3. the method that the combustion gas that sludge cracking according to claim 1 generates is recycled, it is characterised in that: the step
2.0.1 the operating temperature of pyrolysis gasification furnace (2) is 200-520 °.
4. the method that the combustion gas that sludge cracking according to claim 1 generates is recycled, it is characterised in that: the step
2.0.1 the inner wall of pyrolysis gasification furnace (2) is equipped with temperature measurer (3), and the temperature measurer (3) is electrically connected with extraneous electric cabinet.
5. the method that the combustion gas that sludge cracking according to claim 1 generates is recycled, it is characterised in that: the step
2.0.1 the inside of pyrolysis gasification furnace (2) is equipped at least one agitating device (21), and agitating device (21) the device rotation connects
It is connected to the wall body of pyrolysis gasification furnace (2), the agitating device (21) is used to prevent the conglomeration of mud granule (200).
6. the method that the combustion gas that sludge cracking according to claim 1 generates is recycled, it is characterised in that: the step
2.0.4 air accumulator (6) input end is equipped with flowmeter (9), and the flowmeter (9) is used to detect into the flammable of air accumulator (6)
The flow of gas (300).
7. the method that the combustion gas that sludge according to claim 1 cracking generates is recycled, it is characterised in that: further include with
Lower step:
Step 2.1.1:
The tail gas (500) that step 1 generates is delivered to exhaust gas processing device (8) through the first connecting tube (81)；
Step 2.1.2: step 2.1.1 treated tail gas is delivered in drying oven (1) through the second connecting tube (82),
Step 2.1.1 treated tail gas is delivered in pyrolysis gasification furnace (2) through third connecting tube (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173670.8A CN109233909A (en) | 2018-10-09 | 2018-10-09 | A kind of method that the combustion gas that sludge cracking generates is recycled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173670.8A CN109233909A (en) | 2018-10-09 | 2018-10-09 | A kind of method that the combustion gas that sludge cracking generates is recycled |
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|---|---|
| CN109233909A true CN109233909A (en) | 2019-01-18 |
Family
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| CN201811173670.8A Pending CN109233909A (en) | 2018-10-09 | 2018-10-09 | A kind of method that the combustion gas that sludge cracking generates is recycled |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526547A (en) * | 2019-09-29 | 2019-12-03 | 程昊 | Shock wave sludge drying device and sludge drying system |
| CN113776072A (en) * | 2021-07-29 | 2021-12-10 | 郑州市格沃环保开发有限公司 | Low-calorific-value sludge cracking tail gas combustion torch |
| CN115849669A (en) * | 2023-02-21 | 2023-03-28 | 山东成达环保科技有限公司 | Sludge conveying and treating device and implementation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113776072A (en) * | 2021-07-29 | 2021-12-10 | 郑州市格沃环保开发有限公司 | Low-calorific-value sludge cracking tail gas combustion torch |
| CN115849669A (en) * | 2023-02-21 | 2023-03-28 | 山东成达环保科技有限公司 | Sludge conveying and treating device and implementation method thereof |
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Application publication date: 20190118 |
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