CN209835864U - Landfill leachate handles integrated equipment - Google Patents
Landfill leachate handles integrated equipment Download PDFInfo
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- CN209835864U CN209835864U CN201920320968.0U CN201920320968U CN209835864U CN 209835864 U CN209835864 U CN 209835864U CN 201920320968 U CN201920320968 U CN 201920320968U CN 209835864 U CN209835864 U CN 209835864U
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Abstract
The embodiment of the utility model provides a landfill leachate treatment integrated equipment, which comprises a leachate purification device and a vapor compressor; the leachate purification device comprises an evaporation chamber, an ammonia nitrogen reaction chamber, a COD reaction chamber and a preheating chamber; the evaporation chamber is provided with a circulating liquid inlet, a water distribution pipeline and a water distributor which are connected with the circulating liquid inlet; a heat exchanger is arranged below the water distributor, and a circulating liquid outlet is arranged at the bottom of the evaporation chamber and is connected with a circulating liquid inlet through a circulating pipeline; the bottom parts of the ammonia nitrogen reaction chamber and the COD reaction chamber are provided with a gas distribution device, a water inlet, a discharge port and a dosing port; an electric heater and a water replenishing port are arranged in the preheating chamber; the chambers are connected through pipelines. The garbage leachate treatment integrated equipment provided by the embodiment of the utility model is adopted to treat garbage leachate, and the process flow is simple; the equipment is compact in arrangement, small in occupied area, capable of being installed in a container, convenient to install and capable of being moved and repeatedly used, and production and installation cost is saved.
Description
Technical Field
The utility model relates to a landfill leachate handles technical field, especially relates to a landfill leachate handles integrated equipment.
Background
The landfill leachate is high-concentration organic wastewater and has the characteristics of high COD concentration, high ammonia nitrogen content and the like. At present, the domestic garbage leachate treatment process equipment is complex, the investment and maintenance cost is high, the design-production-installation period is long, and the comprehensive popularization is difficult, so the improvement of the process equipment is needed.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a landfill leachate handles integrated equipment. The specific technical scheme is as follows:
the utility model provides a garbage leachate treatment integrated device, which comprises a leachate purification device and a vapor compressor; the leachate purification device comprises an evaporation chamber, an ammonia nitrogen reaction chamber, a COD reaction chamber and a preheating chamber;
a circulating liquid inlet is formed in the upper part of the evaporation chamber, a water distribution pipeline is arranged above the evaporation chamber and is communicated with the circulating liquid inlet; a water distributor is arranged on the water distribution pipeline; a circulating liquid outlet is formed in the bottom of the evaporation chamber; the circulating liquid outlet is communicated with the circulating liquid inlet through a circulating pipeline; a circulating pump is arranged on the circulating pipeline; a material inlet and a concentrated solution outlet are arranged between the circulating pump and the circulating solution outlet;
a heat exchanger is arranged below the water distributor; the heat exchanger comprises at least one heat exchange tube and two tube boxes respectively positioned at two ends of the heat exchange tube; distilled water outlets are formed in the bottoms of the two pipe boxes, and a high-temperature steam inlet and a non-condensable gas outlet are formed in each pipe box;
the upper part of the evaporation chamber is also provided with a steam outlet I;
the bottom in the ammonia nitrogen reaction chamber is provided with a gas distribution device I, and the gas distribution device I is communicated with the steam outlet I through a steam pipeline I; the bottom of the ammonia nitrogen reaction chamber is provided with a water inlet I, a discharge outlet I and a dosing port I, and the upper part of the ammonia nitrogen reaction chamber is also provided with a steam outlet II;
the bottom in the COD reaction chamber is provided with a gas distribution device II, and the gas distribution device II is communicated with the steam outlet II through a steam pipeline II; the bottom of the COD reaction chamber is provided with a water inlet II, a discharge outlet II and a medicine feeding port II; the upper part of the COD reaction chamber is provided with a steam outlet III; the steam outlet III is connected with a high-temperature steam inlet on a heat exchanger tube box of the evaporation chamber through a steam pipeline III; the vapor compressor is arranged on the vapor pipeline III;
the preheating chamber is communicated with the evaporation chamber through a preheating steam pipeline; an electric heater and a water replenishing port are arranged in the preheating chamber.
In some embodiments of the present invention, the evaporation chamber, the ammonia nitrogen reaction chamber, and the COD reaction chamber are respectively provided with a demister below the height of the vapor outlet.
In some embodiments of the present invention, the gas distribution device i is immersed in an acid solution; and the gas distribution device II is immersed in the alkali solution.
The utility model discloses an in some embodiments, still be provided with level gauge and pH sensor in ammonia nitrogen reaction chamber and the COD reaction chamber.
In some embodiments of the present invention, the present invention further comprises a PLC controller, which is connected to the vapor compressor, the circulating pump and the electric heater respectively, for controlling the start or stop of the vapor compressor, the circulating pump and the electric heater.
In some embodiments of the invention, the apparatus further comprises an energy recovery device; the energy recovery device comprises a distilled water storage tank, a heat exchanger I, a heat exchanger II and a heat exchanger III; a water inlet of the distilled water storage tank is communicated with the distilled water outlet, and a water outlet of the distilled water storage tank is communicated with a shell pass inlet of the heat exchanger I; a shell pass inlet of the heat exchanger II is communicated with the non-condensable gas outlet; a shell pass inlet of the heat exchanger III is communicated with the concentrated solution outlet;
tube pass outlets of the heat exchanger I and the heat exchanger III are respectively communicated with a tube pass inlet of the heat exchanger II, and the tube pass outlet of the heat exchanger II is communicated with the material inlet.
In some embodiments of the present invention, the system further comprises a tail gas deodorization device, a waste liquid storage tank and/or a leachate adjusting tank; the tail gas deodorization device is communicated with a shell pass outlet of the heat exchanger II, and the waste liquid storage tank is communicated with a shell pass outlet of the heat exchanger III; and the percolate adjusting tank is respectively communicated with the tube side inlets of the heat exchanger I and the heat exchanger III through pipelines.
The utility model discloses an in some embodiments, still include chemical cleaning device, chemical cleaning device includes the washing pipeline that washing liquid storage tank and multiunit are linked together with it, wash the pipeline and be connected with each heat exchanger in heat exchanger and the energy recuperation device in the evaporating chamber respectively for the washing scale removal of heat exchanger.
In some embodiments of the present invention, the apparatus further comprises a drug adding device, wherein the drug adding device comprises an acid liquid storage tank and an alkali liquid storage tank; the acid liquor storage tank is communicated with the dosing port I through an acid liquor pipeline, and the alkali liquor storage tank is communicated with the dosing port II through an alkali liquor pipeline.
The utility model discloses an among some embodiments, vapor compressor and circulating pump all are connected with a set of cooling water inlet tube and cooling water outlet pipe, are used for the cooling vapor compressor and circulating pump's mechanical seal and bearing.
The garbage leachate treatment integrated equipment provided by the embodiment of the utility model is used for treating garbage leachate, and the process flow is simple; the equipment is compact in arrangement, small in occupied area and capable of being installed in a container, so that the equipment has the characteristics of being movable and reusable, is convenient to install, and can save production and installation costs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a landfill leachate treatment integrated apparatus.
Fig. 2 is a schematic structural diagram of another landfill leachate treatment integrated equipment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a landfill leachate treatment integrated device, as shown in figure 1, comprising a leachate purification device 09 and a vapor compressor 07; the percolate purification device 09 comprises an evaporation chamber 20, an ammonia nitrogen reaction chamber 30, a COD reaction chamber 40 and a preheating chamber 10; the utility model discloses an in some embodiments, filtration liquid purifier 09 still includes a shell 01, evaporating chamber 20, ammonia nitrogen reaction chamber 30, COD reaction chamber 40 and preheating chamber 10 are in the shell 01, form through the partition plate partition.
The utility model is characterized in that the upper part of the evaporation chamber 20 is provided with a circulating liquid inlet 21, a water distribution pipeline 22 is arranged above the inside of the evaporation chamber 20, and the water distribution pipeline 22 is communicated with the circulating liquid inlet 21; a water distributor 23 is arranged on the water distribution pipeline 22; the bottom of the evaporation chamber 20 is provided with a circulating liquid outlet 27; the circulating liquid outlet 27 is communicated with the circulating liquid inlet 21 through a circulating pipeline 04; a circulating pump 03 is arranged on the circulating pipeline 04; a material inlet 05 and a concentrated solution outlet 06 are arranged between the circulating pump 03 and the circulating solution outlet 27. In some embodiments of the present invention, the portion of the circulation pipeline 04 connected to the circulation liquid outlet 27 is thickened, the material inlet 05 and the concentrated liquid outlet 06 are disposed on the thickened pipeline, so as to facilitate the mixing of the landfill leachate entering from the material inlet 05 and the concentrated liquid entering from the circulation liquid outlet 27.
A heat exchanger 24 is arranged below the water distributor 23; the heat exchanger 24 comprises at least one heat exchange tube 241 and two tube boxes 242 respectively positioned at two ends of the heat exchange tube 241; in some embodiments of the present invention, the heat exchanging pipe 241 is fixed to the pipe box 242 through a pipe plate.
Distilled water outlets 26 are formed at the bottoms of the two tube boxes 242, and the distilled water condensed in the heat exchange tubes 241 enters the tube boxes 242 and is discharged through the distilled water outlets 26; in some embodiments of the present invention, the distilled water outlets 26 of the bottom of the two tube boxes are connected by a pipe, and the distilled water in the tube boxes is discharged through the pipe to the leachate purifying device. The tube box 242 is further provided with a high-temperature steam inlet 28 and a non-condensable gas outlet 25; in some embodiments of the present invention, one of the two tube boxes may be disposed outside the evaporation chamber, referred to as a front tube box, and the other tube box is disposed inside the evaporation chamber, referred to as a rear tube box, and the high temperature vapor inlet 28 and the noncondensable gas outlet 25 are disposed on the rear tube box.
The upper part of the evaporation chamber 20 is also provided with a steam outlet I29.
The bottom in the ammonia nitrogen reaction chamber 30 of the utility model is provided with a gas distribution device I33, and the gas distribution device I33 is communicated with the steam outlet I29 through a steam pipeline I31; the bottom of the ammonia nitrogen reaction chamber 30 is provided with a water inlet I36, a discharge outlet I37 and a dosing port I38, and the upper part of the ammonia nitrogen reaction chamber 30 is also provided with a steam outlet II 32.
In some embodiments of the present invention, the gas distribution device i 33 is immersed in an acid solution, which is generally selected to be an acid without volatility, such as a dilute sulfuric acid solution; the ammonia nitrogen in the vapor reacts with the acid solution to form ammonium salts which can be removed, and other acid solutions can be selected by those skilled in the art for this purpose. The utility model discloses an among some embodiments, still be provided with level gauge 34 and pH sensor 35 in the ammonia nitrogen reaction chamber 30 to the liquid level and the pH of control acid solution, in order to throw in good time with acid solution. The formation of ammonium salts affects the pH of the acid solution, and when the pH rises to a set value, it is necessary to discharge a portion of the solution through a discharge port I37, add concentrated sulfuric acid through a dosing port I38, and simultaneously replenish water isothermal with the dilute sulfuric acid in the chamber through a water inlet I36 to maintain the concentration and temperature of the dilute sulfuric acid in the chamber.
The bottom in the COD reaction chamber 40 of the utility model is provided with a gas distribution device II 43, and the gas distribution device II 43 is communicated with the steam outlet II 32 through a steam pipeline II 41; the bottom of the COD reaction chamber 40 is provided with a water inlet II 46, a discharge outlet II 47 and a medicine adding port II 48; the upper part of the COD reaction chamber 40 is provided with a steam outlet III 42; the steam outlet III 42 is connected with the high-temperature steam inlet 28 on the evaporation chamber heat exchanger tube box through a steam pipeline III 08; the vapor compressor 07 is disposed on the vapor line iii 08.
In some embodiments of the present invention, the gas distribution device ii 43 is immersed in an alkaline solution, such as a sodium hydroxide solution, a potassium hydroxide solution, etc., for removing COD from the vapor. COD in the steam formed by the evaporation of the landfill leachate is mainly volatile organic acid and can react with alkali solution to generate organic sodium salt or potassium salt and the like for removal, and other alkali solutions can be adopted by the skilled person for the purpose. In other embodiments of the present invention, a liquid level meter 44 and a pH sensor 45 are further disposed in the COD reaction chamber 40 to monitor the liquid level and pH of the alkali solution, so as to timely add the alkali solution. The generated organic sodium salt or potassium salt is discharged through a discharge port II 47, an alkali solution is added through a medicine adding port II 48, and meanwhile, water which is isothermal with the indoor alkali solution is supplemented through a water inlet II 46 so as to keep the concentration and the temperature of the alkali solution.
In some embodiments of the present invention, the solution discharged from the discharge ports i 37 and ii 47 can be stored or post-treated to avoid environmental pollution. The specific treatment method is a common technical means in the field, and the utility model is not limited herein.
The preheating chamber 10 of the utility model is communicated with the evaporation chamber 20 through a preheating steam pipeline 14; an electric heater 13 and a water replenishing port 11 are arranged in the preheating chamber 10. In actual use, the preheating chamber 10 has a certain level of water therein.
In some embodiments of the present invention, a liquid level meter 12 is further disposed in the preheating chamber 10. When the device is started, steam generated by heating water in the preheating chamber 10 by the electric heater 13 enters the evaporation chamber 20 through the preheating steam pipeline 14, further enters the ammonia nitrogen reaction chamber 30 and the COD reaction chamber 40, passes through the steam pipeline III 08 and the steam compressor 07, and enters the heat exchanger 24 through the high-temperature steam inlet 28, so that the whole percolate purification device is heated to a set temperature; the liquid level in the preheating chamber 10 is controlled by a liquid level meter 12, and when the liquid level is low, water is supplemented by a water supplementing opening 11.
In some embodiments of the present invention, the demister 02 is disposed below the height of the vapor outlet of the evaporation chamber 20, the ammonia nitrogen reaction chamber 30, and the COD reaction chamber 40.
The water distributor, the heat exchanger, the demister, the liquid level meter, the pH sensor and the like adopted in the utility model are common equipment or components in the field, and technicians in the field can select the equipment or components according to actual needs; the air distribution device of the utility model is a common air distribution device in the field, such as an aeration head, a sieve plate and the like, and is not described herein; the utility model discloses in equipment, subassembly, pipeline etc. that adopt all should choose for use the material that has certain corrosion resistance, and the technical personnel in the field can select as required, the utility model discloses do not limit here.
In some embodiments of the present invention, the housing 01 is provided with an observation mirror, which is mainly used for observing the liquid level in each room and the scaling condition of indoor equipment; in other embodiments of the present invention, an inspection manhole is further provided on the housing 01, so as to inspect each indoor device. The number and specific positions of the observation mirrors and the inspection manhole can be set according to actual conditions, and are not limited herein.
In some embodiments of the present invention, as shown in fig. 2, the present invention further includes a PLC controller 50, wherein the PLC controller 50 is connected to the vapor compressor 07, the circulation pump 03, and the electric heater 13, respectively, for controlling the starting or stopping of the vapor compressor 07, the circulation pump 03, and the electric heater 13.
In some embodiments of the present invention, the apparatus further comprises a drug adding device (not shown in the figure), wherein the drug adding device comprises an acid storage tank and an alkali storage tank; the acid liquid storage tank is communicated with the medicine adding port I38 through an acid liquid pipeline, and the alkali liquid storage tank is communicated with the medicine adding port II 48 through an alkali liquid pipeline; the chemical adding device can continuously add chemicals into the ammonia nitrogen reaction chamber and the COD reaction chamber, and can also add chemicals at regular time and quantity. The utility model discloses an in some embodiments, the PLC controller can also be connected with level gauge and/or pH sensor in ammonia nitrogen reaction chamber and the COD reaction chamber, the PLC controller is according to the data control of level gauge and pH sensor feedback the medicine is thrown the feeder apparatus and is added the medicine to ammonia nitrogen reaction chamber and/or COD reaction chamber, and this is the technical means commonly used in this field, does not do the restriction here.
In some embodiments of the present invention, the apparatus further comprises an energy recovery device 51; the energy recovery device 51 comprises a distilled water storage tank 511, a heat exchanger I512, a heat exchanger II 513 and a heat exchanger III 514; the water inlet of the distilled water storage tank 511 is communicated with the distilled water outlet 26, and the water outlet of the distilled water storage tank 511 is communicated with the shell pass inlet of the heat exchanger I512; a shell pass inlet of the heat exchanger II 513 is communicated with the non-condensable gas outlet 25; the shell side inlet of the heat exchanger III 514 is communicated with the concentrated solution outlet 06; tube pass outlets of the heat exchanger I512 and the heat exchanger III 514 are respectively communicated with a tube pass inlet of the heat exchanger II 513, and the tube pass outlet of the heat exchanger II 513 is communicated with the material inlet 05.
In some embodiments of the present invention, the shell side of each heat exchanger in the energy recovery device is used for passing high temperature materials, and the tube side is used for passing low temperature materials; the material trend in shell side and tube side can also be adjusted according to actual need by the technical personnel in the field, and the utility model discloses do not do the restriction here.
In other embodiments of the present invention, the apparatus further comprises a tail gas deodorization unit, a waste liquid storage tank, and/or a leachate conditioning tank (not shown in the figures); the tail gas deodorization device is communicated with a shell pass outlet of the heat exchanger II 513, and the waste liquid storage tank is communicated with a shell pass outlet of the heat exchanger III 514; and the percolate adjusting tank is respectively communicated with the tube side inlets of the heat exchanger I512 and the heat exchanger III 514 through pipelines.
The utility model discloses an among some embodiments, the distilled water storage of condensation among the filtration liquid purification device is stored in the distilled water storage tank, the distilled water storage tank can also through the pipeline with the moisturizing mouth 11 of preheating chamber, the water inlet I36 of ammonia nitrogen reaction chamber and the water inlet II 46 of COD reaction chamber are linked together for corresponding indoor make-up water.
Leachate purification device in the noncondensable gas that discharges out contain vapor, carbon dioxide, hydrogen sulfide, nitric oxide etc. wherein hydrogen sulfide etc. have certain stink. The utility model discloses an among some embodiments, get into behind the noncondensable gas of exhaust in the filtration liquid purifier through energy recuperation device tail gas deodorizing device gets rid of hydrogen sulfide wherein to reach the effect of getting rid of the stink, discharge into the atmosphere through the last exhaust vent of tail gas deodorizing device again. The tail gas deodorization device is a device which is commonly used in the field and is not described in detail herein.
The utility model discloses an among some embodiments, the concentrated solution of exhaust in leachate purification device's the concentrated solution export 06 is stored in the waste liquid storage tank after the energy recuperation device cooling, still be provided with the waste liquid discharge port on the waste liquid storage tank, supply the waste liquid to discharge out the waste liquid storage tank to wait for subsequent processing.
The utility model discloses an in some embodiments, the landfill leachate of pending is saved in the filtration liquid surge tank, be provided with flow control device on the pipeline that filtration liquid surge tank and energy recuperation device are connected, like the measuring pump, can adjust landfill leachate's flow according to actual need, after energy recuperation device heaies up, gets into filtration liquid purifier by material entry 05.
In some embodiments of the present invention, the apparatus further comprises a chemical cleaning device (not shown in the figure), the chemical cleaning device comprises a cleaning solution storage tank and a plurality of cleaning pipes connected with the cleaning solution storage tank, the cleaning pipes are respectively connected with the heat exchanger in the evaporation chamber and each heat exchanger in the energy recovery device, and the cleaning pipes are used for cleaning and descaling the heat exchanger. Illustratively, the cleaning conduit may be in communication with the tube side and/or the shell side of each heat exchanger for cleaning the tube side and the shell side of the heat exchanger.
In some embodiments of the present invention, the chemical cleaning device can also be used for cleaning the demister in the evaporation chamber 20, the ammonia nitrogen reaction chamber 30 and the COD reaction chamber 40, the connection mode between the cleaning pipeline of the chemical cleaning device and each part to be cleaned is the conventional technical means in the field, and the present invention is not limited herein.
The utility model discloses an in some embodiments, work as when the device includes that the medicine throws feeder apparatus and chemical cleaning device simultaneously, the medicine is thrown feeder apparatus and can also be linked together through pipeline and chemical cleaning device's washing liquid storage tank for provide the washing liquid in to the washing liquid storage tank.
In some embodiments of the present invention, the vapor compressor 07 and the circulation pump 03 are both connected to a set of cooling water inlet pipe and cooling water outlet pipe for cooling the mechanical seal and the bearing of the vapor compressor 07 and the circulation pump 03; in some embodiments of the present invention, the cooling water inlet pipe and the cooling water outlet pipe are respectively communicated with the clean water tank 52, which provides cooling water for the vapor compressor 07 and the circulation pump 03. Cooling water inlet tube and cooling water outlet pipe with vapor compressor 07, circulating pump 03's connected mode is technical means commonly used in this field, the utility model discloses do not do here and describe repeatedly.
In some embodiments of the present invention, the apparatus is installed in a container, and the container is transported by a vehicle. In the application process, the container foundation is only needed to be made on the site of landfill leachate treatment, and the material interface and the power utilization interface are communicated with the outside after installation and fixation, so that the container can be put into production; the material interface exemplarily includes the leakage fluid dram of waste liquid storage tank, the inlet of filtration liquid adjusting tank and the moisturizing mouth of preheating chamber, the water inlet of clean water jar etc. and the technical personnel in the field can be according to actual conditions concrete design, the utility model discloses do not limit here. After the leachate of a certain place is treated, the leachate can be quickly transported to the next refuse landfill for treatment.
In some embodiments of the present invention, the gas distribution device i 33 is immersed in an acid solution; the gas distribution device II 43 is immersed in the alkali solution; adopt the method of landfill leachate treatment integrated equipment processing landfill leachate include:
the landfill leachate enters a circulating pipeline 04 from a material inlet 05, enters an evaporation chamber 20 through a circulating liquid inlet 21, and is heated and evaporated by a heat exchanger 24 to form concentrated liquid and steam; the concentrated solution is discharged out of the evaporation chamber through a circulating solution outlet 27; a part of concentrated solution is discharged through a concentrated solution outlet 06, and the other part of concentrated solution is mixed with the landfill leachate entering from a material inlet 05 to form circulating solution, and the circulating solution enters the evaporation chamber 20 from a circulating solution inlet 21 again through a circulating pipeline 04 and is heated and evaporated;
vapor formed by evaporation of the circulating liquid enters a gas distribution device I33 in the ammonia nitrogen reaction chamber 30 through a vapor outlet I29, ammonia nitrogen is removed through reaction of the gas distribution device I33 and an acid solution, the vapor enters a gas distribution device II 43 in the COD reaction chamber 40 through a vapor outlet II 32, COD is removed through reaction of the gas distribution device II 43 and an alkali solution, the vapor enters a vapor pipeline III 08 through a vapor outlet III 42, is subjected to pressure raising and temperature rise through a vapor compressor 07, enters a tube box 242 of the heat exchanger from a high-temperature vapor inlet 28, and then enters a heat exchange tube 241 for heat exchange; the steam after heat exchange is partially or completely condensed into distilled water and is discharged from a distilled water outlet 26, and non-condensable gas in the high-temperature steam is discharged through a non-condensable gas outlet 25; preferably, when the integrated landfill leachate treatment equipment comprises an energy recovery device, the landfill leachate passes through the energy recovery device before entering the leachate purification device, exchanges heat with concentrated solution, distilled water and non-condensable gas discharged from the leachate purification device, and enters the leachate purification device after being heated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The integrated equipment for treating the landfill leachate is characterized by comprising a leachate purification device and a vapor compressor; the leachate purification device comprises an evaporation chamber, an ammonia nitrogen reaction chamber, a COD reaction chamber and a preheating chamber;
a circulating liquid inlet is formed in the upper part of the evaporation chamber, a water distribution pipeline is arranged above the evaporation chamber and is communicated with the circulating liquid inlet; a water distributor is arranged on the water distribution pipeline; a circulating liquid outlet is formed in the bottom of the evaporation chamber; the circulating liquid outlet is communicated with the circulating liquid inlet through a circulating pipeline; a circulating pump is arranged on the circulating pipeline; a material inlet and a concentrated solution outlet are arranged between the circulating pump and the circulating solution outlet;
a heat exchanger is arranged below the water distributor; the heat exchanger comprises at least one heat exchange tube and two tube boxes respectively positioned at two ends of the heat exchange tube; distilled water outlets are formed in the bottoms of the two pipe boxes, and a high-temperature steam inlet and a non-condensable gas outlet are formed in each pipe box;
the upper part of the evaporation chamber is also provided with a steam outlet I;
the bottom in the ammonia nitrogen reaction chamber is provided with a gas distribution device I, and the gas distribution device I is communicated with the steam outlet I through a steam pipeline I; the bottom of the ammonia nitrogen reaction chamber is provided with a water inlet I, a discharge outlet I and a dosing port I, and the upper part of the ammonia nitrogen reaction chamber is also provided with a steam outlet II;
the bottom in the COD reaction chamber is provided with a gas distribution device II, and the gas distribution device II is communicated with the steam outlet II through a steam pipeline II; the bottom of the COD reaction chamber is provided with a water inlet II, a discharge outlet II and a medicine feeding port II; the upper part of the COD reaction chamber is provided with a steam outlet III; the steam outlet III is connected with a high-temperature steam inlet on a heat exchanger tube box of the evaporation chamber through a steam pipeline III; the vapor compressor is arranged on the vapor pipeline III;
the preheating chamber is communicated with the evaporation chamber through a preheating steam pipeline; an electric heater and a water replenishing port are arranged in the preheating chamber.
2. The integrated landfill leachate treatment plant of claim 1, wherein the evaporation chamber, the ammonia nitrogen reaction chamber and the COD reaction chamber are respectively provided with a demister below the height of the steam outlet.
3. The integrated landfill leachate treatment plant of claim 1, wherein the gas distribution device i is immersed in an acid solution; and the gas distribution device II is immersed in the alkali solution.
4. The integrated landfill leachate treatment plant of claim 1, wherein the ammonia nitrogen reaction chamber and the COD reaction chamber are further provided with a liquid level meter and a pH sensor.
5. The integrated landfill leachate treatment plant of claim 1, further comprising a PLC controller, wherein the PLC controller is connected to the vapor compressor, the circulation pump and the electric heater, respectively, and is configured to control the start or stop of the vapor compressor, the circulation pump and the electric heater.
6. The integrated landfill leachate treatment plant of claim 1, further comprising an energy recovery device; the energy recovery device comprises a distilled water storage tank, a heat exchanger I, a heat exchanger II and a heat exchanger III; a water inlet of the distilled water storage tank is communicated with the distilled water outlet, and a water outlet of the distilled water storage tank is communicated with a shell pass inlet of the heat exchanger I; a shell pass inlet of the heat exchanger II is communicated with the non-condensable gas outlet; a shell pass inlet of the heat exchanger III is communicated with the concentrated solution outlet;
tube pass outlets of the heat exchanger I and the heat exchanger III are respectively communicated with a tube pass inlet of the heat exchanger II, and the tube pass outlet of the heat exchanger II is communicated with the material inlet.
7. The integrated landfill leachate treatment plant of claim 6, further comprising a tail gas deodorizing device, a waste liquid storage tank and/or a leachate conditioning tank; the tail gas deodorization device is communicated with a shell pass outlet of the heat exchanger II, and the waste liquid storage tank is communicated with a shell pass outlet of the heat exchanger III; and the percolate adjusting tank is respectively communicated with the tube side inlets of the heat exchanger I and the heat exchanger III through pipelines.
8. The integrated landfill leachate treatment plant of claim 6 or 7, further comprising a chemical cleaning device, wherein the chemical cleaning device comprises a cleaning solution storage tank and a plurality of sets of cleaning pipelines communicated with the cleaning solution storage tank, and the cleaning pipelines are respectively connected with the heat exchanger in the evaporation chamber and each heat exchanger in the energy recovery device and are used for cleaning and descaling the heat exchangers.
9. The integrated landfill leachate treatment plant of any one of claims 1 to 7, further comprising a drug adding device, wherein the drug adding device comprises an acid storage tank and an alkali storage tank; the acid liquor storage tank is communicated with the dosing port I through an acid liquor pipeline, and the alkali liquor storage tank is communicated with the dosing port II through an alkali liquor pipeline.
10. The integrated landfill leachate treatment plant of any one of claims 1 to 7, wherein a set of cooling water inlet pipe and cooling water outlet pipe are connected to the steam compressor and the circulation pump for cooling mechanical seals and bearings of the steam compressor and the circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920320968.0U CN209835864U (en) | 2019-03-14 | 2019-03-14 | Landfill leachate handles integrated equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920320968.0U CN209835864U (en) | 2019-03-14 | 2019-03-14 | Landfill leachate handles integrated equipment |
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| CN209835864U true CN209835864U (en) | 2019-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761431A (en) * | 2019-03-14 | 2019-05-17 | 广东沃泰环保有限公司 | A kind of landfill leachate treatment integrated equipment and method for treating garbage percolation liquid |
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2019
- 2019-03-14 CN CN201920320968.0U patent/CN209835864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761431A (en) * | 2019-03-14 | 2019-05-17 | 广东沃泰环保有限公司 | A kind of landfill leachate treatment integrated equipment and method for treating garbage percolation liquid |
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