CN113915626A - Feeding system for resource utilization of sludge incineration disposal and operation method - Google Patents
Feeding system for resource utilization of sludge incineration disposal and operation method Download PDFInfo
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- CN113915626A CN113915626A CN202111277173.4A CN202111277173A CN113915626A CN 113915626 A CN113915626 A CN 113915626A CN 202111277173 A CN202111277173 A CN 202111277173A CN 113915626 A CN113915626 A CN 113915626A
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- 239000010802 sludge Substances 0.000 title claims abstract description 175
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000446 fuel Substances 0.000 claims abstract description 79
- 239000003245 coal Substances 0.000 claims abstract description 42
- 239000002002 slurry Substances 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 15
- 238000005303 weighing Methods 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000005204 segregation Methods 0.000 claims description 3
- 239000003250 coal slurry Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 17
- 238000011268 retreatment Methods 0.000 abstract description 5
- 239000002893 slag Substances 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 4
- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000843 powder Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
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- 239000010865 sewage Substances 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 3
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- 230000000694 effects Effects 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000002036 drum drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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- 230000006641 stabilisation Effects 0.000 description 2
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- 241000894006 Bacteria Species 0.000 description 1
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- 239000000428 dust Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010806 kitchen waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 239000002912 waste gas Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention belongs to the technical field of solid waste treatment, and discloses a feeding system for resource utilization of sludge incineration disposal, which comprises a fuel buffer bin, a screw feeder, a scraper conveyor, a paste slurry preparation machine, a residue slurry separator, a mixed fuel bin, a positive pressure feeder and a paste slurry pump which are sequentially connected; the fuel buffer storage bin is connected with a sludge feeding unit and a belt weighing coal feeder; the sludge feeding unit comprises a metering unit, a sludge pump and a sludge receiving bin which are sequentially arranged, and the sludge receiving bin is communicated with the sludge feeding port through the sludge pump. The coal and the sludge are primarily stirred and mixed in a fuel buffer bin, are conveyed to a paste preparation machine for further fine crushing, stirring and mixing, are subjected to slag removal through a slag-slurry separator, are stored in a mixed fuel bin, and are conveyed to an incinerator for incineration and utilization through a positive pressure feeder and a paste-slurry pump. The invention can effectively solve the problems of high cost, safety and condensate waste water retreatment in the existing sludge drying and incinerating treatment process.
Description
Technical Field
The invention belongs to the technical field of solid waste treatment, and particularly relates to a feeding system for sludge incineration disposal resource utilization and an operation method.
Background
With the acceleration of urbanization process, the amount of urban domestic sewage and industrial sewage is increasing day by day. A large amount of sludge is generated in the sewage treatment process, and the sludge yield is rapidly increased. However, the sludge treatment and disposal are not synchronously improved with the sewage treatment, the problem of sludge treatment and disposal is not effectively solved, and the situation is very severe.
In engineering practice, the water content of the dewatered sludge is generally 70-80%. The water content of the sludge is very high, and organic matters in the sludge are parasitized with various bacteria, viruses and parasitic organisms; the sludge also contains various heavy metals, toxic compounds and the like, and the influence on the environment is great. Sludge needs to be subjected to reduction, stabilization and harmless treatment, and resource treatment as far as possible, so as to achieve the purposes of energy conservation, emission reduction and circular economy development.
The sludge is classified according to the source of sewage, and comprises domestic sewage sludge and industrial wastewater sludge, wherein the industrial wastewater sludge comprises paper-making sludge, electroplating sludge, tanning sludge, oil-containing sludge and the like. The calorific value of the sludge is high or low, and the variation range is large.
The sludge disposal mode comprises land utilization, landfill, building material utilization and incineration, and correspondingly, the sludge quality of the sludge also corresponds to the sludge disposal mode. The incineration treatment of sludge has many advantages: the sludge can be reduced to the maximum extent; all pathogens can be killed, and toxic pollutants are oxidized; the activity of heavy metals in ash slag is much lower than that in sludge; the advanced flue gas purification facility is used, so that the gas can reach the standard and be discharged.
The water content of the dewatered sludge is 70-80%, and the water content of the sludge is usually reduced to below 40% and then the sludge is sent to an incinerator for incineration. The sludge drying process is divided into direct heating rotary drum drying, indirect heating rotary drum drying, centrifugal drying, indirect heating multi-disc drying and fluidized bed drying technologies. Taking an indirect heating blade type dryer drying system as an example, the system comprises a wet sludge storage and conveying system, a heating steam system, a condensed water system, a wet waste gas condensation treatment system generated by drying, a dry sludge conveying and storage system, an odor treatment system and a nitrogen system.
In a word, traditional sludge incineration technology needs to carry out the mummification to mud, sets up sludge drying system and can bring many problems, specifically does:
1. the cost is high: the sludge drying system is complex, the equipment is more, the generated dry sludge is sent to the incinerator through the conveying system (whether further treatment is needed or not is determined according to the type of the incinerator, such as powder sludge preparation), and the energy consumption, investment and operating cost are high;
2. the safety of sludge drying: in the process of sludge heat drying, transportation and storage, serious spontaneous combustion and dust explosion risks exist, and a series of safety measures need to be taken: inert gas generation, storage and injection systems; a humidity, pressure, temperature and oxygen content online monitoring system; explosion-proof valves, fire extinguishing equipment, partition walls and the like.
3. And (4) retreatment of the condensed water wastewater generated in the sludge drying process.
Disclosure of Invention
The invention aims to provide a feeding system for resource utilization of sludge incineration disposal and an operation method thereof, and solves the problems of high cost, safety and condensate waste water re-treatment caused by the arrangement of a sludge drying system in the traditional sludge incineration process.
The invention is realized by the following technical scheme:
a feeding system for resource utilization of sludge incineration disposal comprises a fuel buffer bin, a screw feeder, a scraper conveyor, a paste preparation machine, a slurry separator, a mixed fuel bin, a positive pressure feeder and a paste pump which are sequentially connected;
the fuel cache bin is provided with a sludge feeding port and a coal feeding port, the sludge feeding port is connected with a sludge feeding unit, and the coal feeding port is connected with a belt weighing coal feeder;
the sludge feeding unit comprises a metering unit, a sludge pump and a sludge receiving bin which are sequentially arranged, the metering unit is used for metering the sludge conveying amount of the sludge pump, and the sludge receiving bin is communicated with a sludge feeding hole through the sludge pump.
Further, a hydraulic sliding frame and a discharging screw are arranged at the bottom of the sludge receiving bin.
Furthermore, two sludge pumps are arranged, and the sludge pumps are screw pumps controlled by frequency conversion.
Furthermore, the inlet and the outlet of the sludge pump are respectively provided with a valve.
Further, the inside spiral stirring mixing arrangement that is provided with of fuel buffering storehouse for carry out preliminary mixing with mud and buggy.
Further, the paste preparation machine adopts a horizontal hammer-shaped stirring screw device;
the slag-slurry separator adopts a vibrating screen type;
the positive pressure feeder adopts a double-shaft spiral structure;
the paste pump is an electro-hydraulic proportional control high-pressure plunger pump.
Furthermore, a stirring device is arranged inside the mixed fuel bin, and a hydraulic sliding frame is arranged at the bottom of the bin.
The invention discloses an operation method of a feeding system for resource utilization of sludge incineration disposal, which comprises the following steps:
s1, weighing the sludge by the metering station, conveying the sludge to a sludge receiving bin, and conveying the sludge in the sludge receiving bin to a fuel buffering bin by a sludge pump;
meanwhile, conveying the coal or coal slurry to a fuel buffer bin through a belt weighing coal feeder; primarily mixing coal and sludge in a fuel buffer bin;
s2, the preliminary mixed material falls into a scraper conveyer through a screw feeder, and then is conveyed to a paste preparation machine through the scraper conveyer to be stirred and finely crushed to prepare paste;
s3, feeding the paste slurry into a residue-slurry separator for residue removal to obtain a mixed fuel;
s4, feeding the mixed fuel into a mixed fuel bin through a pipeline, wherein a stirring device is arranged in the mixed fuel bin to prevent segregation and keep the mixed fuel in a uniform state;
s5, adjusting the pressure of the target mixed fuel through a positive pressure feeder, and then conveying the target mixed fuel to a paste pump;
and S6, conveying the target mixed fuel to the terminal combustion equipment by a paste pump for incineration.
Further, in the operation process, the sludge receiving bin, the fuel buffer bin and the mixed fuel bin operate under the micro negative pressure, and odor generated by sludge is guided to be used as primary air and secondary air incineration treatment of terminal combustion equipment.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a feeding system for resource utilization of sludge incineration disposal, which adopts a mode of preparing paste-slurry mixed fuel from sludge and coal, improves the heat value of the mixed fuel to self-sustaining incineration and directly sends the incineration into a sludge incinerator for incineration. A series of devices required by sludge drying are not needed, corresponding operation cost is saved, other problems of safety, condensate waste water retreatment and the like caused by the sludge drying are avoided, sludge is directly prepared into mixed fuel through process equipment and coal powder and is supplied to a sludge incinerator for incineration and utilization, reduction, stabilization, harmlessness and resource treatment of the sludge are realized, and the purposes of fully treating and utilizing solid waste energy, treating urban pollutants at low cost and high efficiency and purifying the environment are achieved. The sludge can also be other wastes which pollute the environment and have a certain heat value, such as oil sludge, organic waste slurry, kitchen waste slurry and the like; the coal powder is not limited, and can be solid wastes such as coal slime, crushed coal gangue and gasified slag generated in the coal chemical industry coal powder gasification process.
Furthermore, the sludge pump adopts frequency conversion control, can accurately measure the conveying capacity of the sludge, and adjusts the sludge feeding capacity of the fuel buffer bin by adjusting the rotating speed of the pump according to the system requirements.
Furthermore, valves for shutting off are arranged at the inlet and the outlet of the sludge pump, and the system can be used for maintaining and replacing the stator or the rotor without emptying.
Furthermore, the paste preparation machine adopts a horizontal hammer-shaped stirring screw device, and has the function of finely crushing part of the agglomerated materials besides the material mixing and distributing function, so that the materials are fully mixed.
Furthermore, the paste pump is an electro-hydraulic proportional control high-pressure plunger pump, can meet the stepless regulation of pressure and conveying capacity, and can realize the variable-flow constant-pressure control of the feeding amount of the sludge incinerator.
The invention also discloses a feeding system operation method for resource utilization of sludge incineration disposal, sludge is conveyed into a fuel cache bin through a sludge pump, coal powder is conveyed into the fuel cache bin through a belt weighing coal feeder, the mixture ratio of the sludge and the coal in the mixed fuel is realized by adjusting and controlling the operation of the sludge pump and the belt weighing coal feeder, the mixed fuel is conveyed into a paste slurry preparation machine for mixing and fine crushing again after primary mixing, then slag is removed, the mixed fuel is conveyed into a mixed fuel bin and conveyed to a paste slurry pump through pressure regulation, and a target mixed fuel is conveyed to a terminal combustion device for incineration by the paste pump. The sludge drying system is omitted, the feeding system of the incinerator is simplified, the operation and maintenance cost of related systems is correspondingly reduced, the safety of system operation is improved, the combustion of the incinerator is more stable, the sludge incinerator is suitable for sludge incineration disposal of fluidized bed incinerators, multi-chamber incinerators, rotary incinerators, electric heating infrared incinerators and the like, and the sludge drying system has remarkable economic benefits, social benefits and engineering application prospects.
Further, the system operates in a totally-enclosed manner: the sludge receiving bin, the fuel buffering bin and the mixed fuel bin operate under micro negative pressure, and odor generated by sludge is guided to be incinerated by primary air and secondary air of the incinerator without a special odor treatment system; because the system is totally closed, the problem of retreatment of sludge leachate is avoided.
Drawings
FIG. 1 is a schematic connection diagram of a feeding system for resource utilization of sludge incineration disposal according to the present invention.
Wherein, 1, a sludge receiving bin; 2. a hydraulic carriage; 3. discharging screw; 4. a sludge pump; 5. a fuel buffer bin; 6. a belt weighing coal feeder; 7. a screw feeder; 8. a scraper conveyor; 9. preparing a paste slurry machine; 10. a slurry separator; 11. a mixed fuel bin; 12. a positive pressure feeder; 13. a paste pump.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
As shown in fig. 1, the invention discloses a feeding system for resource utilization of sludge incineration disposal, which comprises a fuel buffer bin 5, a screw feeder 7, a scraper conveyor 8, a paste slurry preparation machine 9, a residue slurry separator 10, a mixed fuel bin 11, a positive pressure feeder 12 and a paste slurry pump 13 which are connected in sequence; the fuel buffer bin 5 is provided with a sludge feeding hole and a coal feeding hole, the sludge feeding hole is connected with a sludge feeding unit, and the coal feeding hole is connected with a belt weighing coal feeder 6; the sludge feeding unit comprises a metering unit, a sludge pump 4 and a sludge receiving bin 1 which are sequentially arranged, the metering unit is used for metering the sludge conveying amount, and the sludge receiving bin 1 is communicated with a sludge feeding hole through the sludge pump 4.
As shown in fig. 1, the operation method of the feeding system for resource utilization of sludge incineration disposal of the invention comprises the following processes:
the mud transport vechicle is advanced the factory and is followed the measurement station earlier, makes statistics of and weighs the mud of advancing the factory, and the mud transport vechicle after weighing transports mud to mud and receives storehouse 1, sets up hydraulic pressure balladeur train 2 and spiral 3 of unloading below the mud receives the storehouse 1, prevents that mud from hardening or binding arch when storing in the storehouse and unloading.
The sludge receiving bin 1 is provided with two sludge pumps 4, and the sludge pumps 4 can be screw pumps according to the type selection of the conveying distance. The sludge pump 4 is used for conveying the sludge from the sludge receiving bin 1 to a feeding port of the fuel buffer bin 5.
The sludge pump 4 adopts frequency conversion control, can accurately measure the conveying amount of sludge, and adjusts the sludge inlet amount of the fuel buffer bin 5 by adjusting the rotating speed of the pump according to the system requirement; the inlet and outlet of the sludge pump 4 are provided with valves for shutting off, and the system can be used for maintaining and replacing the stator or the rotor without emptying.
Coal or coal slime are carried to another pan feeding mouth of fuel buffer storehouse 5 through belt weighing feeder 6, and belt weighing feeder 6 adjusts the coal or coal slime volume that gets into fuel buffer storehouse 5 through adjusting the speed of taking, and the measurement is accurate reliable. Calculating and determining the proportion of the sludge and the coal (or coal slime) according to the water content and the heat value of the sludge and the water content and the heat value of the coal (or coal slime), further realizing the proportion of the sludge and the coal (or coal slime) in the mixed fuel by adjusting and controlling the operation of a sludge pump 4 and a belt weighing coal feeder 6, and increasing the low-level heat value of the mixed fuel to be more than or equal to 5000kJ/kg so that the mixed fuel can be self-sustained burned in an incinerator and used for heat supply or power generation; the water content of the mixed fuel is reduced to be more than or equal to 65 percent, so that the mixed fuel is convenient to pump.
The inside spiral stirring mixing arrangement that sets up in fuel buffer storage 5 makes the material form the mobile layer in the mixing chamber, and intraformational material is under the effect of convection current, diffusion, shearing mixing principle, and the mud and the buggy of ration ratio carry out preliminary mixing.
The sludge and the coal powder fall into a scraper conveyor 8 through a screw feeder 7 after being preliminarily matched and stirred in the fuel buffer bin 5, and are conveyed to a paste preparation machine 9 through the scraper conveyor 8 to be stirred and finely crushed to prepare paste slurry.
The paste preparation machine 9 adopts a horizontal hammer-shaped stirring screw, and has the function of finely crushing part of the agglomerated materials besides the function of remixing and distributing the materials, so as to achieve the purpose of fully mixing the materials.
The paste slurry from the paste slurry preparation machine 9 is subjected to deslagging treatment by a vibrating screen type slurry separator 10, and the qualified paste slurry is stored in a mixed fuel bin 11.
The mixing fuel bin 11 has a stirrer inside to prevent segregation and maintain the homogeneous state of the paste slurry, and a hydraulic carriage is set in the bottom of the bin to ensure the discharge of the paste slurry. The hydraulic sliding frame of the mixed fuel bin 11 is close to the bottom of the bin, mainly has the functions of arch breaking and feeding, and has a certain auxiliary stirring function.
The paste slurry in the mixed fuel bin 11 is pressurized by a positive pressure feeder 12 according to the requirement of the load of the incinerator, enters a paste pump 13 and is sent to the feeding port of the incinerator through a pipeline. The positive pressure feeder 12 has a double-shaft screw structure, and can automatically adjust the conveying amount according to the set feeding pressure. When the pressure of the mixed fuel in the discharging hopper is increased, the rotating speed is automatically reduced so as to reduce the conveying amount; when the pressure of the mixed fuel in the discharge hopper is reduced, the rotating speed is automatically increased, so that the conveying capacity is increased, and the feeding to the paste pump 13 at a certain pressure is ensured.
The incinerator can accurately adjust the fuel flow according to the incinerator temperature, the paste pump 13 is an electro-hydraulic proportional adjustment high-pressure plunger pump, stepless adjustment of pressure and conveying capacity can be met, and variable-flow constant-pressure control of the feeding amount of the incinerator can be realized.
In addition, the system is operated in a totally-enclosed mode: the sludge receiving bin 1, the fuel buffer bin 5 and the mixed fuel bin 11 run under micro negative pressure, and odor generated by sludge is introduced to be incinerated by primary air and secondary air of the incinerator without a special odor treatment system; because the system is totally closed, the problem of sludge leachate retreatment does not exist.
The invention aims to solve the problem of a new process for economically treating urban sludge, provides a method for efficiently incinerating and disposing the sludge at low cost by combining the current technical situation, achieves the purposes of saving energy, improving economic benefit and protecting environment, and has good social benefit and engineering application prospect.
Claims (9)
1. A feeding system for resource utilization of sludge incineration disposal is characterized by comprising a fuel buffer bin (5), a screw feeder (7), a scraper conveyor (8), a paste preparation machine (9), a residue-slurry separator (10), a mixed fuel bin (11), a positive pressure feeder (12) and a paste pump (13) which are sequentially connected;
a sludge feeding hole and a coal feeding hole are arranged on the fuel buffer bin (5), the sludge feeding hole is connected with a sludge feeding unit, and the coal feeding hole is connected with a belt weighing coal feeder (6);
the sludge feeding unit comprises a metering unit, a sludge pump (4) and a sludge receiving bin (1), the metering unit is sequentially arranged and is used for metering the sludge conveying amount of the sludge pump (4), and the sludge receiving bin (1) is communicated with a sludge feeding hole through the sludge pump (4).
2. A feeding system for sludge incineration disposal resource utilization according to claim 1, characterized in that the bottom of the sludge receiving bin (1) is provided with a hydraulic carriage (2) and a discharge screw (3).
3. The feeding system for resource utilization of sludge incineration disposal according to claim 1, wherein two sludge pumps (4) are provided, and the sludge pumps (4) are screw pumps controlled by frequency conversion.
4. A feeding system for sludge incineration disposal resource utilization according to claim 1, characterized in that the inlet and the outlet of the sludge pump (4) are provided with valves, respectively.
5. The feeding system for sludge incineration disposal resource utilization according to claim 1, wherein a spiral stirring and mixing device is arranged inside the fuel buffer bin (5) and is used for primarily mixing sludge and pulverized coal.
6. A feeding system for sludge incineration disposal resource utilization according to claim 1, characterized in that the paste preparation machine (9) employs a horizontal hammer-shaped stirring screw device;
the slag-slurry separator (10) adopts a vibrating screen type;
the positive pressure feeder (12) adopts a double-shaft spiral structure;
the paste pump (13) is an electro-hydraulic proportional control high-pressure plunger pump.
7. A feeding system for resource utilization of sludge incineration disposal according to claim 1, characterized in that a stirring device is arranged inside the mixed fuel bin (11), and a hydraulic sliding frame is arranged at the bottom of the bin.
8. The operation method of the sludge incineration disposal resource utilization feeding system as claimed in any one of claims 1 to 7, characterized by comprising the steps of:
s1, weighing the sludge by a metering station, conveying the sludge to a sludge receiving bin (1), and conveying the sludge in the sludge receiving bin (1) to a fuel buffer bin (5) by a sludge pump (4);
meanwhile, conveying the coal or coal slurry to a fuel buffer bin (5) through a belt weighing coal feeder (6); the coal and the sludge are primarily mixed in a fuel buffer bin (5);
s2, the preliminary mixed material falls into a scraper conveyor (8) through a screw feeder (7), and then is conveyed to a paste preparation machine (9) through the scraper conveyor (8) to be stirred and finely crushed to prepare paste slurry;
s3, feeding the paste slurry into a residue-slurry separator (10) for residue removal to obtain a mixed fuel;
s4, conveying the mixed fuel into a mixed fuel bin (11) through a pipeline, wherein a stirring device is arranged inside the mixed fuel bin (11) to prevent segregation and keep the mixed fuel in a uniform state;
s5, adjusting the pressure of the target mixed fuel through the positive pressure feeder (12), and then conveying the target mixed fuel to a paste pump (13);
and S6, delivering the target mixed fuel to the terminal combustion equipment by the paste pump (13) for incineration.
9. The operation method according to claim 8, wherein in the operation process, the sludge receiving bin (1), the fuel buffer bin (5) and the mixed fuel bin (11) are operated under micro negative pressure, and odor generated by sludge is introduced to be used as primary air and secondary air incineration treatment of terminal combustion equipment.
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| CN202111277173.4A CN113915626A (en) | 2021-10-29 | 2021-10-29 | Feeding system for resource utilization of sludge incineration disposal and operation method |
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2021
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|---|---|---|---|---|
| CN101551108A (en) * | 2009-05-11 | 2009-10-07 | 东南大学 | Incineration treatment method of municipal sludge and device thereof |
| CN103776037A (en) * | 2014-02-25 | 2014-05-07 | 南京凯盛开能环保能源有限公司 | High-concentration organic waste innocent treatment system and process |
| CN107699304A (en) * | 2017-10-17 | 2018-02-16 | 江苏秋林特能装备股份有限公司 | Domestic sludge is mixed with fuel coal water slurry complete set of equipments with raw coal |
| CN108395072A (en) * | 2018-05-08 | 2018-08-14 | 北京中矿环保科技股份有限公司 | The method of the coal-powder boiler direct blending combustion sludge of environmental protection |
| CN110030561A (en) * | 2019-05-20 | 2019-07-19 | 青岛振华绿能能源科技有限公司 | A kind of sludge incineration processing method |
| CN111520730A (en) * | 2020-05-26 | 2020-08-11 | 西安热工研究院有限公司 | Sludge-water-coal-slurry co-combustion system for coal-fired boiler and working method thereof |
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