CN110762543A - Incineration equipment and process for chlorine-free high-concentration organic waste liquid steam recycling oxidation bed - Google Patents
Incineration equipment and process for chlorine-free high-concentration organic waste liquid steam recycling oxidation bed Download PDFInfo
- Publication number
- CN110762543A CN110762543A CN201910894775.0A CN201910894775A CN110762543A CN 110762543 A CN110762543 A CN 110762543A CN 201910894775 A CN201910894775 A CN 201910894775A CN 110762543 A CN110762543 A CN 110762543A
- Authority
- CN
- China
- Prior art keywords
- waste liquid
- heat
- flue gas
- steam
- oxidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to equipment and a process for incinerating a chlorine-free high-concentration organic waste liquid by using a steam recycling oxidation bed. The technical scheme is as follows: the waste liquid distillation part mainly adopts a distillation still, the outside of a ceramic heat storage oxidation body of the waste liquid oxidation incineration part is a heat insulation shell, a high-temperature grate is arranged in an inner cavity, a flue gas self-circulation burner is arranged at the bottom of an oxidation bed, and an auxiliary burner is arranged at the lower part of the flue gas self-circulation burner; the gas inlet end is provided with a throttle valve and is connected to the steam ejector through a rear-section gas inlet pipe and an air preheater, and the flue gas self-circulation burner is connected to the upper side of the oxidation bed through a high-temperature gas return pipe; is connected to the fan through a front section air inlet pipe; the beneficial effects are as follows: organic matters contained in the waste liquid are used as energy, natural gas or other fuels are used as auxiliary materials, the waste liquid is treated by adopting a steam recycling oxidation bed incineration process, and the purposes of realizing waste resource utilization, saving energy and reducing the equipment operation cost are achieved.
Description
Technical Field
The invention relates to an environment protection process and equipment, in particular to equipment and a process for incinerating a chlorine-free high-concentration organic waste liquid by a steam recycling oxidation bed.
Background
In 2015 for 2 months, the country has developed ten water regulations, and the method has great significance for improving the ecological environment of China and building beautiful China. At present, domestic sewage and general industrial sewage are treated by adopting a biochemical treatment process, and the standard discharge is realized. For waste liquid generated in industrial processes with more organic matters and poor biodegradability, measures such as multi-effect evaporation concentration, MVR evaporation concentration, RO reverse osmosis and the like are mostly adopted for treatment, and the organic matter content of the concentrated liquid formed after treatment is generally tens of thousands or hundreds of thousands mg/L. In addition, the landfill leachate is newly produced in China every year in landfill sites and waste incineration plants, thousands of tons of landfill leachate are produced, and for some aged leachate, the treatment difficulty is very high due to the high ammonia nitrogen content, the high organic matter content and the poor biodegradability. The treatment technology of the high-concentration organic waste liquid is difficult and high in cost, and the phenomena of pit seepage, injection, rain and sewage mixed drainage and steal drainage occur occasionally, so that serious soil and water pollution is caused. In recent years, after the environment protection supervision and supervision intensity is increased, the illegal steal and discharge phenomenon is controlled, and the existing waste liquid is large in social inventory and is a problem of headache in the whole society. According to related materials, the high-concentration organic waste liquid is treated in four ways, namely a wet oxidation method; secondly, a catalytic oxidation method; thirdly, plasma technology; and fourthly, an incineration method. The four modes are respectively characterized in that the incineration method is relatively thorough for organic waste liquid with higher organic matter concentration, and the energy sources in the organic waste liquid can be utilized to realize the purposes of saving energy and reducing the operation cost of equipment. FIG. 2 is a schematic structural process diagram of a fluidized bed incinerator for incinerating waste liquid and solid waste together, which comprises coal (limestone) a1, solid waste a2, waste water secondary air a3, primary air a4, cooling water a5, an ash conveying system a6, ash a7, an induced draft fan a8, a chimney a9, flue gas a10, electric dust removal a11, a tail flue a12, a cyclone separator a13, a dilute phase region a14 and a dense phase region a 15;
fig. 3 is a schematic view of the structure and process of a waste liquid fluidized bed incinerator, which comprises a hot air generating furnace b1, an oil burner b2, an expansion chamber b3, a hot air sieve plate b4, a fluidized bed combustion chamber b5, a waste liquid injection port b6, a residue separation chamber b7, a smoke exhaust port b8, an ash discharge port b9 and smoke b 10. The two process equipments have the defects that the waste liquid and the air are not uniformly premixed, NO is generated in a dense region due to high temperature, and N is generated in an anoxic low-temperature region2O, and the like. The problem that the waste liquid with high salt content is easy to coke, slag and block the equipment and the like. The heat of the exhaust gas generated by burning the high-concentration organic waste liquid is not utilized. In addition, fluidized bed incinerators in which waste liquid is incinerated together with solid waste also have a total amount of solid waste matched. Therefore, it is necessary to develop a process and an apparatus which can completely and perfectly treat the waste liquid and can be operated at a low cost.
Disclosure of Invention
The invention aims to provide equipment and process for incinerating a chlorine-free high-concentration organic waste liquid by using a steam recycling oxidation bed, aiming at the defects in the prior art.
The invention provides a chlorine-free high-concentration organic waste liquid steam recycling oxidation bed incineration device, which adopts the technical scheme that: the waste liquid oxidation incineration system comprises a waste liquid oxidation incineration part and a waste liquid distillation part, wherein the waste liquid distillation part mainly adopts a distillation kettle (32), the waste liquid oxidation incineration part comprises an oxidation bed, a flue gas self-circulation burner (23), an auxiliary burner (22), a fan (1), a front section air inlet pipe (2), a No. I explosion venting door (3), a steam ejector (7), an air preheater (12), a rear section air inlet pipe (13), a No. II explosion venting door (14), a throttle valve (19) and a high-temperature gas return pipe (24), wherein the oxidation bed consists of a heat insulation shell (18), a ceramic heat storage oxidation body (17) and a high-temperature grate (25), the heat insulation shell (18) is arranged outside the ceramic heat storage oxidation body (17), the high-temperature grate (25) is arranged in an inner cavity, and the No. I thermocouple (15) and the No. II thermocouple (16) are respectively arranged at the upper, a flue gas self-circulation burner (23) is arranged at the bottom of the oxidation bed, and an auxiliary burner (22) is arranged at the lower part of the flue gas self-circulation burner (23); a throttle valve (19) is arranged at the air inlet end of the flue gas self-circulation burner (23), the flue gas self-circulation burner is connected to the steam ejector (7) through a rear-section air inlet pipe (13) and an air preheater (12), and the flue gas self-circulation burner (23) is connected to the upper side of the oxidation bed through a high-temperature gas return pipe (24); the front end of the steam ejector (7) is connected to the fan (1) through a front-section air inlet pipe (2); the upper part of the oxidation bed is provided with a waste liquid heat exchanger (8) and a waste liquid preheater (9), the air inlet of the steam ejector (7) is connected to the top of the distillation still (32) through a pipeline, the inlet of the waste liquid heat exchanger (8) is connected to the middle lower part of the distillation still (32) through a waste liquid buffer tank (30), and the outlet of the waste liquid heat exchanger (8) is connected to the middle upper part of the distillation still (32) through a pipeline.
Preferably, the lower part of the distillation kettle (32) is provided with a crystal slurry discharging upper valve (36), a crystal slurry temporary storage pipe (37), a crystal slurry discharging lower valve (38) and a high-boiling-point organic liquid discharging valve (35), the middle part of the distillation kettle (32) is provided with a No. II thermal resistor (34), and the upper part of the distillation kettle (32) is provided with a No. I thermal resistor (31) and a liquid level meter (33); waste liquid circulating pump (27), circulating pump valve (26) and reserve waste liquid circulating pump (28), reserve circulating pump valve (29) parallel connection to form waste liquid circulation system through pipeline series connection with waste liquid buffer tank (30), waste liquid heat exchanger (8), stills (32), waste liquid filter (4), waste liquid feed pump (5), check valve (6), waste liquid preheater (9) loop through pipe connection back access waste liquid buffer tank (30).
Preferably, the main exhaust pipe (10) is arranged on the waste liquid preheater (9), and the main exhaust pipe (10) is provided with a No. III thermocouple (11).
Preferably, the auxiliary burner (22) is connected to the rear-stage inlet pipe (13) through an adjusting valve (21) and an auxiliary burner inlet pipe (20), and part of waste liquid steam is introduced to participate in auxiliary combustion so as to reduce the generation of NOx.
Preferably, the waste liquid heat exchanger (8), the air preheater (12) and the waste liquid preheater (9) are connected in series from bottom to top, the heat of the flue gas is fully recovered, and the steam is sucked to the ceramic heat storage oxide body (17) through the steam ejector (7), so that the energy conservation of the process is realized.
Preferably, the inside of the flue gas self-circulation burner (23) is made into a structure with a Venturi effect, and the high-temperature gas return pipe (24) connects the flue gas self-circulation burner (23) with the upper cavity in the heat-insulating shell (18) and can guide part of high-temperature flue gas into the ceramic heat-storage oxide body (17) to further provide heat for oxidizing and incinerating waste liquid.
Preferably, the ceramic heat-accumulating oxide (17) is a honeycomb-shaped heat-accumulating ceramic, and a catalyst can be supported by using the honeycomb-shaped heat-accumulating ceramic.
Preferably, the lower part of the distillation still (32) is tapered.
Preferably, the waste liquid circulating pump (27), the circulating pump valve (26), the standby waste liquid circulating pump (28) and the standby circulating pump valve (29) are connected in parallel, and are connected with the waste liquid buffer tank (30), the waste liquid heat exchanger (8) and the distillation still (32) in series through pipelines to form a waste liquid circulating system, and the waste liquid filter (4), the waste liquid supply pump (5), the check valve (6) and the waste liquid preheater (9) are connected into the waste liquid buffer tank (30) after being connected through pipelines in sequence.
The invention provides a chlorine-free high-concentration organic waste liquid steam recycling oxidation bed incineration process, which comprises the following steps:
(1) and preparation work: filling the garbage percolate into the distillation kettle (32) to a set liquid level height, and starting a waste liquid circulating pump (27);
(2) and starting up: closing a throttle valve (19), starting a fan (1) at low flow, starting an auxiliary burner system, heating a ceramic heat-storage oxide body (17), gradually increasing the air volume of the fan when the temperatures of a thermocouple I (15) and a thermocouple II (16) reach set values respectively, simultaneously opening the throttle valve (19) and adjusting an adjusting valve (21), keeping the auxiliary burner burning stably, and starting successfully after steam is produced by a distillation kettle (32);
(3) and normally operating: under the action of a fan, low-pressure water vapor in the distillation kettle (32) is sent to a ceramic heat storage oxide body (17) through a flue gas self-circulation burner (23) by a vapor ejector (7), and organic matters are oxidized and decomposed in a high-temperature environment and release heat; most of the heat of the auxiliary fuel and the organic matter oxidation is exchanged to the circulating waste liquid by the waste liquid heat exchanger (8), and the high-temperature saturated waste liquid is sent to the distillation kettle (32) by the waste liquid circulating pump (27) to produce steam; the residual part of heat is continuously exchanged to the air sent by the fan and the preheated waste liquid along with the air flow to supply the waste liquid sent by the pump; the high-temperature environment of the ceramic heat-storage oxide body is maintained by sucking part of high-temperature flue gas heat and heat from flue gas exchanged by an air preheater from the upper end of the ceramic heat-storage oxide body through a Venturi tube effect in a flue gas self-circulation burner (23); adjusting the supply amount of the auxiliary fuel according to the temperature signals of the thermocouple III (11), the thermocouple I (15) and the thermocouple II (16); regulating the supply amount of the landfill leachate according to the monitoring data of the liquid level meter; and discharging sludge formed at the bottom of the distillation kettle (32) after the landfill leachate is evaporated, and discharging the sludge into a crystal slurry temporary storage pipe (37) by opening a crystal slurry discharging upper valve (36) firstly, and then closing the crystal slurry discharging upper valve (36) and opening a crystal slurry discharging lower valve (38) to discharge the sludge.
Compared with the prior art, the invention has the following beneficial effects:
1. no secondary gas pollution is generated: organic matters in the waste liquid are subjected to distillation, air homogenizing and premixing, then the organic matters are oxidized in an oxidation bed at a high temperature of about 1000 ℃ or at low and medium temperature (300-450 ℃) on the oxidation bed with a catalyst, and organic matters are converted into CO2、H2And O and other harmless substances are discharged in a gas form in a clean mode. Because the homogeneous premixing and the uniform temperature oxidation of the distilled waste liquid and the air are realized, NO can not be generated in the ceramic heat storage oxide body due to local high temperature, and N can not be generated due to local oxygen deficiency2O and other secondary gaseous pollutants. In addition, the auxiliary burner uses air mixed with steam, so that the generation of NOx is controlled;
2. good running economy: most of heat in the waste liquid treatment process is recovered by adopting a steam recycling mode to provide heat for the next cycle, flue gas passes through a waste liquid heat exchanger, an air preheater and a waste liquid preheater in sequence to be fully subjected to heat exchange utilization, the energy utilization rate in the treatment process is high, and the energy consumption of the process flow is reduced;
3. the device is not easy to block: because of the distillation mode, the substances which are oxidized and incinerated in the equipment do not contain or contain less salt, and the homogenization condition of the oxidation and incineration ensures that all the substances are fully decomposed and changed into gas substances, and the coking, slagging and blockage of the equipment are avoided. The heat of the exhaust gas generated by burning the high-concentration organic waste liquid is not utilized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a fluidized bed incinerator for incinerating waste liquid and solid waste together in the prior art;
FIG. 3 is a schematic structural view of a fluidized bed incinerator for waste liquid in the prior art;
in the upper diagram: a fan 1, a front section air inlet pipe 2, a No. I explosion venting door 3, a waste liquid filter 4, a waste liquid supply pump 5, a check valve 6, a steam ejector 7, a waste liquid heat exchanger 8, a waste liquid preheater 9, a main exhaust pipe 10, a No. III thermocouple 11, an air preheater 12, a rear section air inlet pipe 13, a No. II explosion venting door 14, a No. I thermocouple 15, a No. II thermocouple 16, a ceramic heat storage oxide 17, a heat preservation shell 18, a throttle valve 19, an auxiliary burner air inlet pipe 20, a regulating valve 21, an auxiliary burner 22, a flue gas self-circulation burner 23, a high-temperature gas return pipe 24, a high-temperature grate 25, a circulation pump valve 26, a waste liquid circulation pump 27, a standby waste liquid circulation pump 28, a standby circulation pump valve 29, a waste liquid buffer tank 30, a No. I thermal resistor 31, a distillation kettle 32, a liquid level meter 33, a No. II thermal resistor 34, a high-boiling-point organic liquid, The paddles exit lower valve 38.
Detailed Description
Example 1 referring to fig. 1, an example of a device and a process for incinerating a chlorine-free high-concentration organic waste liquid by using a steam recycling oxidation bed is used for oxidizing and incinerating leachate of garbage, and includes a fan 1, a front section air inlet pipe 2, a first explosion venting door 3, a waste liquid filter 4, a waste liquid supply pump 5, a check valve 6, a steam ejector 7, a waste liquid heat exchanger 8, a waste liquid preheater 9, a main exhaust pipe 10, a third thermocouple 11, an air preheater 12, a rear section air inlet pipe 13, a second explosion venting door 14, a first thermocouple 15, a second thermocouple 16, a ceramic heat storage oxide 17, a heat insulation housing 18, a throttle valve 19, an auxiliary burner air inlet pipe 20, a regulating valve 21, an auxiliary burner 22, a flue gas self-circulation 23, a high-temperature gas return pipe 24, a high-temperature grate 25, a circulation pump valve 26, a waste liquid circulation pump 27, a standby waste liquid circulation pump 28, a, Waste liquid buffer tank 30, thermal resistor 31, stills 32, level gauge 33, thermal resistor 34 No. II, high boiling point organic liquid discharge valve 35, brilliant oar discharge upper valve 36, brilliant oar temporary storage pipe 37, brilliant oar discharge lower valve 38, each is connected by pipeline and pipeline annex.
Wherein, an oxidation bed is composed of a heat preservation shell 18, a ceramic heat accumulation oxidation body 17 and a high-temperature grate 25, and a No. I thermocouple 15 and a No. II thermocouple 16 are respectively arranged on the side surface of the oxidation bed from top to bottom; the lower part of the oxidation bed is connected with a flue gas self-circulation burner 23, and an auxiliary burner 22 is inserted into the flue gas self-circulation burner 23 from the lower part of the burner and is connected and installed; the upper part of the oxidation bed is sequentially provided with a waste liquid heat exchanger 8, an air preheater 12, a waste liquid preheater 9 and a main exhaust pipe 10, and the main exhaust pipe 10 is provided with a No. III thermocouple 11.
Wherein, the level end at 3 anterior segments intake pipe 2 is installed to No. I explosion venting door, and the lower extreme of the exit linkage anterior segment intake pipe 2 of fan 1, the other end are connected with steam ejector 7, and steam ejector 7 is connected with air heater 12 again. No. II explosion venting door 14 is installed at the upper end of rear section intake pipe 13, the upper portion horizontal connection air heater 12 of section intake pipe 13, the lower part horizontal segment sets up throttle 19 and connects flue gas self-loopa nozzle 23, and supplementary nozzle intake pipe 20 is branched from section intake pipe 13, is connected with supplementary nozzle 22 through governing valve 21. The upper end of the high-temperature gas return pipe 24 is connected with a high-temperature cavity of the oxidation bed, and the lower end is connected with the flue gas self-circulation burner 23.
Wherein, the lower part of the distillation still 32 is provided with a crystal slurry discharging upper valve 36, a crystal slurry temporary storage pipe 37, a crystal slurry discharging lower valve 38 and a high boiling point organic liquid discharging valve 35, the middle part of the distillation still 32 is provided with a No. II thermal resistor 34, and the upper part of the distillation still 32 is provided with a No. I thermal resistor 31 and a liquid level meter 33.
Wherein, waste liquid circulating pump 27, circulating pump valve 26 and reserve waste liquid circulating pump 28, reserve circulating pump valve 29 parallel connection to form the waste liquid circulation system through pipeline series connection with waste liquid buffer tank 30, waste liquid heat exchanger 8, stills 32, waste liquid filter 4, waste liquid feed pump 5, check valve 6, waste liquid preheater 9 loop through the pipe connection back insert waste liquid buffer tank 30.
Wherein, a steam outlet from the upper part of the distillation kettle 32 is connected with a steam ejector through a pipeline and a pipeline accessory, thereby connecting the two parts.
In the embodiment 1, the incineration process of the landfill leachate steam recycling oxidation bed comprises the following steps:
1. preparation work: injecting the garbage percolate into the distillation kettle to a set liquid level height, and starting a waste liquid circulating pump;
2. starting up: and closing the throttle valve, starting the fan at low flow, starting the auxiliary burner system, heating the ceramic heat-storage oxide body, gradually increasing the air volume of the fan when the temperatures of the thermocouple I and the thermocouple II reach set values respectively, and simultaneously opening the throttle valve and adjusting the adjusting valve to keep the auxiliary burner burning stably. When the distillation kettle produces steam, the starting is successful;
3. and (4) normal operation: under the action of a fan, low-pressure water vapor in the distillation kettle is conveyed to the ceramic heat storage oxide body through the smoke self-circulation burner by the ejector, and organic matters are oxidized and decomposed in a high-temperature environment and release heat. Exchanging most of the heat of oxidation of the auxiliary fuel and the organic matters to circulating waste liquid by a waste liquid heat exchanger, and sending the high-temperature saturated waste liquid to a distillation still by a waste liquid circulating pump to produce steam; the remaining portion of the heat is exchanged with the air flow to the fan and the preheated waste liquid to the pumped waste liquid. The high-temperature environment of the ceramic heat-storage oxide body is maintained by sucking part of high-temperature flue gas heat and heat from flue gas exchanged by an air preheater from the upper end of the ceramic heat-storage oxide body through the effect of a venturi tube in the flue gas self-circulation burner. And adjusting the supply amount of the auxiliary fuel according to the temperature signals of the thermocouple III, the thermocouple I and the thermocouple II. And adjusting the supply amount of the landfill leachate according to the monitoring data of the liquid level meter. Discharging sludge formed at the bottom of the distillation still after the landfill leachate is evaporated: firstly opening the upper valve for discharging the crystal slurry, discharging the sludge into the temporary crystal slurry storage pipe, then closing the upper valve for discharging the crystal slurry, and opening the lower valve for discharging the crystal slurry to discharge the sludge.
Example 2, as an example of the incineration equipment and process of the chlorine-free high-concentration organic waste steam recycling oxidation bed, the incineration equipment and process is used for oxidizing and incinerating the chlorine-free high-concentration organic waste containing salt or no salt, and the difference between the incineration equipment and the incineration process of the chlorine-free high-concentration organic waste steam recycling oxidation bed and the example 1 is that: two distillation kettles are connected in parallel and used alternately: when the temperature of the thermal resistor at the upper end of one distillation still is higher than 100 ℃ and the temperature of the thermal resistor at the lower end of the distillation still is higher than 105 ℃, the other distillation still is switched to work, and the distillation still enters a period of discharging high-boiling-point organic liquid and re-injecting waste liquid.
The above description is only a few of the preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (10)
1. A chlorine-free high-concentration organic waste liquid steam recycling oxidation bed incineration device is characterized in that: the waste liquid oxidation incineration system comprises a waste liquid oxidation incineration part and a waste liquid distillation part, wherein the waste liquid distillation part mainly adopts a distillation kettle (32), the waste liquid oxidation incineration part comprises an oxidation bed, a flue gas self-circulation burner (23), an auxiliary burner (22), a fan (1), a front section air inlet pipe (2), a No. I explosion venting door (3), a steam ejector (7), an air preheater (12), a rear section air inlet pipe (13), a No. II explosion venting door (14), a throttle valve (19) and a high-temperature gas return pipe (24), wherein the oxidation bed consists of a heat insulation shell (18), a ceramic heat storage oxidation body (17) and a high-temperature grate (25), the heat insulation shell (18) is arranged outside the ceramic heat storage oxidation body (17), the high-temperature grate (25) is arranged in an inner cavity, and the No. I thermocouple (15) and the No. II thermocouple (16) are respectively arranged at the upper, a flue gas self-circulation burner (23) is arranged at the bottom of the oxidation bed, and an auxiliary burner (22) is arranged at the lower part of the flue gas self-circulation burner (23); a throttle valve (19) is arranged at the air inlet end of the flue gas self-circulation burner (23), the flue gas self-circulation burner is connected to the steam ejector (7) through a rear-section air inlet pipe (13) and an air preheater (12), and the flue gas self-circulation burner (23) is connected to the upper side of the oxidation bed through a high-temperature gas return pipe (24); the front end of the steam ejector (7) is connected to the fan (1) through a front-section air inlet pipe (2); the upper part of the oxidation bed is provided with a waste liquid heat exchanger (8) and a waste liquid preheater (9), the air inlet of the steam ejector (7) is connected to the top of the distillation still (32) through a pipeline, the inlet of the waste liquid heat exchanger (8) is connected to the middle lower part of the distillation still (32) through a waste liquid buffer tank (30), and the outlet of the waste liquid heat exchanger (8) is connected to the middle upper part of the distillation still (32) through a pipeline.
2. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: an upper crystal slurry discharging valve (36), a temporary crystal slurry storage pipe (37), a lower crystal slurry discharging valve (38) and a high-boiling-point organic liquid discharging valve (35) are arranged at the lower part of the distillation kettle (32), a No. II thermal resistor (34) is arranged at the middle part of the distillation kettle (32), and a No. I thermal resistor (31) and a liquid level meter (33) are arranged at the upper part of the distillation kettle (32); waste liquid circulating pump (27), circulating pump valve (26) and reserve waste liquid circulating pump (28), reserve circulating pump valve (29) parallel connection to form waste liquid circulation system through pipeline series connection with waste liquid buffer tank (30), waste liquid heat exchanger (8), stills (32), waste liquid filter (4), waste liquid feed pump (5), check valve (6), waste liquid preheater (9) loop through pipe connection back access waste liquid buffer tank (30).
3. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: the main exhaust pipe (10) is arranged on the waste liquid preheater (9), and the main exhaust pipe (10) is provided with a No. III thermocouple (11).
4. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: the auxiliary burner (22) is connected to the rear-section air inlet pipe (13) through the regulating valve (21) and the auxiliary burner air inlet pipe (20), and partial waste liquid steam is introduced to participate in auxiliary combustion, so that the generation of NOx is reduced.
5. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: the waste liquid heat exchanger (8), the air preheater (12) and the waste liquid preheater (9) are connected in series from bottom to top, the heat of flue gas is fully recovered, and steam is sucked to the ceramic heat storage oxide (17) through the steam ejector (7), so that the energy conservation of the process is realized.
6. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: the inside of the flue gas self-circulation burner (23) is made into a structure with a Venturi effect, the flue gas self-circulation burner (23) is connected with the upper cavity in the heat-insulating shell (18) through the high-temperature gas return pipe (24), and partial high-temperature flue gas can be guided into the ceramic heat-storage oxide body (17) to further provide heat for waste liquid oxidation incineration.
7. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: the ceramic heat-storage oxide (17) is made of honeycomb heat-storage ceramic, and the honeycomb heat-storage ceramic can be loaded with a catalyst.
8. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: the lower part of the distillation kettle (32) is conical.
9. The incineration plant of the chlorine-free high-concentration organic waste liquid steam recycling oxidation bed according to claim 1, characterized in that: waste liquid circulating pump (27), circulating pump valve (26) and reserve waste liquid circulating pump (28), reserve circulating pump valve (29) parallel connection to form waste liquid circulation system through pipeline series connection with waste liquid buffer tank (30), waste liquid heat exchanger (8), stills (32), insert waste liquid buffer tank (30) after waste liquid filter (4), waste liquid feed pump (5), check valve (6), waste liquid preheater (9) loop through the pipe connection.
10. A process for the incineration of chlorine-free high-concentration organic waste steam by means of a steam-recirculating oxidation bed, implemented by the apparatus according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
(1) and preparation work: filling the garbage percolate into the distillation kettle (32) to a set liquid level height, and starting a waste liquid circulating pump (27);
(2) and starting up: closing a throttle valve (19), starting a fan (1) at low flow, starting an auxiliary burner system, heating a ceramic heat-storage oxide body (17), gradually increasing the air volume of the fan when the temperatures of a thermocouple I (15) and a thermocouple II (16) reach set values respectively, simultaneously opening the throttle valve (19) and adjusting an adjusting valve (21), keeping the auxiliary burner burning stably, and starting successfully after steam is produced by a distillation kettle (32);
(3) and normally operating: under the action of a fan, low-pressure water vapor in the distillation kettle (32) is sent to a ceramic heat storage oxide body (17) through a flue gas self-circulation burner (23) by a vapor ejector (7), and organic matters are oxidized and decomposed in a high-temperature environment and release heat; most of the heat of the auxiliary fuel and the organic matter oxidation is exchanged to the circulating waste liquid by the waste liquid heat exchanger (8), and the high-temperature saturated waste liquid is sent to the distillation kettle (32) by the waste liquid circulating pump (27) to produce steam; the residual part of heat is continuously exchanged to the air sent by the fan and the preheated waste liquid along with the air flow to supply the waste liquid sent by the pump; the high-temperature environment of the ceramic heat-storage oxide body is maintained by sucking part of high-temperature flue gas heat and heat from flue gas exchanged by an air preheater from the upper end of the ceramic heat-storage oxide body through a Venturi tube effect in a flue gas self-circulation burner (23); adjusting the supply amount of the auxiliary fuel according to the temperature signals of the thermocouple III (11), the thermocouple I (15) and the thermocouple II (16); regulating the supply amount of the landfill leachate according to the monitoring data of the liquid level meter; and discharging sludge formed at the bottom of the distillation kettle (32) after the landfill leachate is evaporated, and discharging the sludge into a crystal slurry temporary storage pipe (37) by opening a crystal slurry discharging upper valve (36) firstly, and then closing the crystal slurry discharging upper valve (36) and opening a crystal slurry discharging lower valve (38) to discharge the sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910894775.0A CN110762543B (en) | 2019-09-20 | 2019-09-20 | Incineration equipment and process for chlorine-free high-concentration organic waste liquid steam recycling oxidation bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910894775.0A CN110762543B (en) | 2019-09-20 | 2019-09-20 | Incineration equipment and process for chlorine-free high-concentration organic waste liquid steam recycling oxidation bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110762543A true CN110762543A (en) | 2020-02-07 |
| CN110762543B CN110762543B (en) | 2020-12-22 |
Family
ID=69330469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910894775.0A Active CN110762543B (en) | 2019-09-20 | 2019-09-20 | Incineration equipment and process for chlorine-free high-concentration organic waste liquid steam recycling oxidation bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110762543B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020017161A (en) * | 2000-08-29 | 2002-03-07 | 유 득 김 | The stripper and evaporative regenerative waste water incinerator system |
| CN102901110A (en) * | 2012-11-05 | 2013-01-30 | 北京机电院高技术股份有限公司 | Method for incinerating high-viscosity organic mixed waste liquid |
| CN205328652U (en) * | 2015-12-29 | 2016-06-22 | 江苏和顺环保有限公司 | Organic sewage treatment system |
| CN206469268U (en) * | 2017-01-17 | 2017-09-05 | 恩国环保科技（上海）有限公司 | A kind of organic waste liquor treatment system |
| CN206709101U (en) * | 2017-04-10 | 2017-12-05 | 江苏齐清环境科技有限公司 | A kind of device of heat accumulation type thermal oxidation stove processing volatile organic waste gas |
| CN207361976U (en) * | 2017-07-25 | 2018-05-15 | 云南大地绿坤环保科技有限公司 | A kind of full-automatic high concentration cyanide bearing waste solution processing system |
| CN110030566A (en) * | 2019-03-26 | 2019-07-19 | 上海永疆环境工程有限公司 | Exhaust gas and comprehensive treatment method for wastewater |
-
2019
- 2019-09-20 CN CN201910894775.0A patent/CN110762543B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020017161A (en) * | 2000-08-29 | 2002-03-07 | 유 득 김 | The stripper and evaporative regenerative waste water incinerator system |
| CN102901110A (en) * | 2012-11-05 | 2013-01-30 | 北京机电院高技术股份有限公司 | Method for incinerating high-viscosity organic mixed waste liquid |
| CN205328652U (en) * | 2015-12-29 | 2016-06-22 | 江苏和顺环保有限公司 | Organic sewage treatment system |
| CN206469268U (en) * | 2017-01-17 | 2017-09-05 | 恩国环保科技（上海）有限公司 | A kind of organic waste liquor treatment system |
| CN206709101U (en) * | 2017-04-10 | 2017-12-05 | 江苏齐清环境科技有限公司 | A kind of device of heat accumulation type thermal oxidation stove processing volatile organic waste gas |
| CN207361976U (en) * | 2017-07-25 | 2018-05-15 | 云南大地绿坤环保科技有限公司 | A kind of full-automatic high concentration cyanide bearing waste solution processing system |
| CN110030566A (en) * | 2019-03-26 | 2019-07-19 | 上海永疆环境工程有限公司 | Exhaust gas and comprehensive treatment method for wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110762543B (en) | 2020-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105333439B (en) | Secondary high-temperature gasification incineration system for garbage | |
| CN102322630B (en) | Method and devices for burning macromolecular matters efficiently and cleanly | |
| CN1834535B (en) | Smokeless coal burning boiler | |
| CN206637622U (en) | A kind of domestic garbage pyrolysis stove | |
| CN102317687A (en) | Be used to handle the method and apparatus of solid waste | |
| CN110486728A (en) | A kind of novel household garbage pyrolyzing, gasifying and incinerating system | |
| CN112919760B (en) | Municipal sludge and kitchen waste cooperative treatment method and device for household garbage | |
| CN112062435B (en) | Oil sludge pyrolysis treatment device and process thereof | |
| CN110762543B (en) | Incineration equipment and process for chlorine-free high-concentration organic waste liquid steam recycling oxidation bed | |
| CN105664690A (en) | System for performing denitration on cement decomposing furnace through coal gas generator | |
| CN208222489U (en) | A kind of phenol wastewater and the waste coke mixed burning system that gasifies | |
| CN109974003A (en) | A kind of townhouse formula refuse pyrolysis gasification furnace | |
| CN206927848U (en) | A kind of domestic garbage pyrolysis system | |
| KR101309279B1 (en) | All fluidize bed that phlogiston device and produce steam resource | |
| CN104214782A (en) | Garbage treatment rotary kiln system | |
| CN105753274B (en) | A kind of sludge treatment system and disposing technique | |
| CN213178357U (en) | Smoke recycling oxygen-enriched incineration sludge and muddy water co-treatment system | |
| CN105805756B (en) | Environment-friendly garbage high-efficiency thermal decomposition device | |
| WO2019184592A1 (en) | Household refuse gasification pyrolysis treatment device for saving energy and decreasing energy consumption | |
| CN207877557U (en) | A kind of mud drying device | |
| CN205700087U (en) | A kind of utilize gas generator that cement decomposing furnace is carried out the device of denitration | |
| CN111780130A (en) | Flue gas recirculation oxygen-enriched incineration sludge and muddy water co-treatment method | |
| CN205447766U (en) | Burner of carbomorphism mud | |
| CN104879745A (en) | Method and system of realizing carbon emission reduction by gasifier | |
| CN109974002A (en) | A kind of garbage treating process of townhouse formula refuse pyrolysis gasification furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |