CN113413740B - Plastic regeneration waste gas purification treatment device and working method thereof - Google Patents
Plastic regeneration waste gas purification treatment device and working method thereof Download PDFInfo
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- CN113413740B CN113413740B CN202110730771.6A CN202110730771A CN113413740B CN 113413740 B CN113413740 B CN 113413740B CN 202110730771 A CN202110730771 A CN 202110730771A CN 113413740 B CN113413740 B CN 113413740B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- 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
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- 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
Abstract
The invention relates to a plastic regeneration waste gas purification treatment device and a working method thereof, and the plastic regeneration waste gas purification treatment device comprises a cooler, an oil-water separation tank, a spray tower, a waste gas combustion chamber and a waste water combustion chamber, wherein one end of the waste gas combustion chamber is connected with a waste gas output port of the cooler through an air inlet pipe, the other end of the waste gas combustion chamber is communicated with the waste water combustion chamber, and a heating component is arranged inside the waste gas combustion chamber; an oil-water outlet of the cooler is communicated with an oil-water separation tank, a water outlet of the oil-water separation tank is connected with a waste water combustion chamber, the waste water combustion chamber is connected with a steam discharge pipe, the steam discharge pipe is communicated with a waste gas combustion chamber, waste gas combusted by a heating assembly enters the waste water combustion chamber to heat the waste water, and the waste water is heated to be steam which returns to the waste gas combustion chamber through the steam discharge pipe to be combusted; the spray tower is used for treating waste gas discharged from the waste water combustion chamber. The invention adopts a heating mode to simultaneously treat the waste gas and the waste water, and the treated product only contains gas, thereby not only having good treatment effect, but also being convenient to discharge.
Description
The technical field is as follows:
the invention relates to a plastic regeneration waste gas purification treatment device and a working method thereof.
Background art:
the regeneration of the plastic rubber is to destroy a macromolecular reticular cross-linking structure in a rubber product into a single-chain micromolecular structure by physical desulfurization (namely decomposition and crushing) and chemical desulfurization (softening and activation under high temperature and high pressure) of waste rubber products such as tires and the like so as to change the macromolecular reticular cross-linking structure from an elastomer into a processable viscoelastic body.
Can produce a large amount of tail gases in the plastic regeneration process, current reclaimed rubber tail gas treatment technical design is reasonable inadequately, and the waste water that produces after the purification still needs other equipment to handle, and this energy consumption is great not only, increases reclaimed rubber tail gas treatment cost moreover.
The invention content is as follows:
the invention aims to solve the problems in the prior art, namely, the invention provides a plastic regeneration waste gas purification treatment device and a working method thereof, which not only have good treatment effect, but also reduce treatment cost.
In order to achieve the purpose, the invention adopts the technical scheme that: a plastic regeneration waste gas purification treatment device comprises a cooler, an oil-water separation tank, a spray tower, a waste gas combustion chamber and a waste water combustion chamber, wherein one end of the waste gas combustion chamber is connected with a waste gas output port of the cooler through an air inlet pipe, the other end of the waste gas combustion chamber is communicated with the waste water combustion chamber, and a heating assembly for combusting waste gas is arranged inside the waste gas combustion chamber; an oil-water output port of the cooler is communicated with an oil-water separation tank, a water outlet of the oil-water separation tank is connected with a waste water combustion chamber, the waste water combustion chamber is connected with a steam discharge pipe, the steam discharge pipe is communicated with a waste gas combustion chamber, waste gas combusted by a heating assembly enters the waste water combustion chamber to heat the waste water, and the waste water is heated to be steam and returns to the waste gas combustion chamber to be combusted by the steam discharge pipe; and the spray tower carries out desulfurization treatment on the waste gas discharged from the waste water combustion chamber.
Further, be equipped with the heat exchanger in the waste water combustion chamber, the air inlet of heat exchanger is connected with the blast pipe of waste gas combustion chamber, and the water inlet of heat exchanger meets with oil water separating tank's delivery port, and the steam delivery pipe of heat exchanger is connected with the waste gas combustion chamber, and the gas vent of heat exchanger is connected with the spray column.
Furthermore, a combustion cavity and a reaction cavity are sequentially arranged at the front part of the waste gas combustion chamber along the flow direction of waste gas, and the combustion cavity is positioned at one end of the waste gas combustion chamber close to the gas inlet pipe; the heating assembly is arranged in the combustion chamber; the steam discharge pipe is communicated with the combustion cavity.
Furthermore, one end of the waste gas combustion chamber close to the exhaust pipe is provided with a heat storage cavity communicated with the reaction cavity, and a heat storage packing layer or a catalytic packing layer is arranged in the heat storage cavity.
Further, still including the air feeder who is used for carrying the reclaimed rubber tail gas for purification unit, air feeder includes the gas holder, the inside of gas holder is equipped with floating gasbag, the inside of floating gasbag forms inclosed reservoir through the liquid water seal, the reservoir is connected with the tail gas input tube, be connected with the tail gas output tube on the tail gas input tube.
Further, a pressure detection assembly for detecting the internal pressure of the air storage chamber is arranged inside the floating type air bag; the air supply device is connected with the pressure detection assembly through the control unit.
Furthermore, the air supply device further comprises an air supply pipe connected with the air inlet pipe, the air supply pipe is connected with an air supply device, and the air supply device is electrically connected with the pressure detection assembly through the control unit.
Further, the waste water combustion chamber and the waste gas combustion chamber may be structurally integrated; the cooler and the oil-water separator can be combined into a whole structurally.
The other technical scheme adopted by the invention is as follows: a working method of a plastic regeneration waste gas purification treatment device is characterized in that the working method comprises the following steps: the pulse plastic regeneration waste gas enters a gas storage chamber inside the floating type air bag through a tail gas input pipe and is stored, and then the tail gas in the floating type air bag is conveyed into the purification treatment device through a tail gas output pipe; the plastic regeneration waste gas is cooled in the cooler to form a gas-phase waste gas and a liquid-phase oil-water mixture, the oil-water mixture realizes oil-water separation in an oil-water separation tank, the separated water is input into a heat exchanger in the waste water combustion chamber through a waste water conveying pipe, and the separated oil is collected and reused; waste gas is inputed to the combustion chamber of waste gas combustion chamber through the intake pipe in, heating element heats waste gas, later waste gas enters into the heat exchanger of waste water combustion chamber behind reaction chamber, the heat accumulation chamber in proper order, high temperature waste gas trades and heats waste water to becoming steam, and steam returns to the combustion chamber through the steam delivery pipe and burns the heating, and then follow the heat exchanger gas vent and discharge with waste water heat transfer after waste gas, discharges after the spray column is handled.
Compared with the prior art, the invention has the following effects:
(1) The waste water is heated by the high-temperature waste gas after combustion, the waste water is converted into steam by combustion and returns to the waste gas combustion chamber for heating, no additional equipment is needed for treating the waste water, and the cost is effectively reduced;
(2) The waste gas and the waste water are simultaneously treated by adopting a heating mode, and the treated product only contains gas, so that the treatment effect is good, and the discharge is convenient;
(3) Through the tail gas storage of floating gasbag to the pulsed, later the tail gas of floating gasbag with the storage is discharged with continuous form, and the follow-up tail gas burner of being convenient for lasts and handles tail gas, need not regularly to open and stop, greatly reduced energy consumption.
Description of the drawings:
FIG. 1 is a process flow diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a schematic view of the second embodiment of the present invention.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to the drawings and the detailed description.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The first embodiment is as follows: as shown in fig. 1 and 2, the plastic regeneration waste gas purification treatment device of the present invention comprises a cooler 1, an oil-water separation tank 2, a spray tower 3, a waste gas combustion chamber 4 and a waste water combustion chamber 5, wherein one end of the waste gas combustion chamber 4 is connected with a waste gas output port of the cooler 1 through an air inlet pipe 6, and the other end is communicated with the waste water combustion chamber 4 through an exhaust pipe 7, and a heating component 8 for burning waste gas is arranged inside the waste gas combustion chamber 4; an oil-water output port of the cooler 1 is communicated with an oil-water separation tank 2, a water outlet of the oil-water separation tank 2 is connected with a waste water combustion chamber 5, the waste water combustion chamber 5 is connected with a steam discharge pipe 9, the steam discharge pipe 9 is communicated with a waste gas combustion chamber 4, waste gas combusted by a heating assembly 8 enters the waste water combustion chamber 5 to heat the waste water, and the waste water is heated to be steam and returns to the waste gas combustion chamber 4 to be combusted through the steam discharge pipe 9; and the spray tower 3 carries out desulfurization, deacidification and dedusting treatment on the waste gas discharged from the waste water combustion chamber 5. The cooler is cooled to obtain a gas-phase waste gas and a liquid-phase oil-water mixture, the waste gas enters the waste gas combustion chamber and is combusted through the heating assembly, the oil-water mixture is subjected to oil-water separation in the oil-water separation tank, the oil on the upper layer is directly recycled, and the water on the lower layer enters the waste water combustion chamber; the waste water is heated by the high-temperature waste gas after combustion, the waste water is converted into steam by combustion and returns to the waste gas combustion chamber to be heated, no extra equipment is needed to treat the waste water, and the final treatment product is gas. The gas is burnt by a burning mode, and the treatment effect is good.
In this embodiment, be equipped with heat exchanger 10 in the waste water combustion chamber 5, the air inlet of heat exchanger 10 is connected with the blast pipe 7 of waste gas combustion chamber, and the water inlet of heat exchanger 10 is connected with the delivery port of oil water separating tank 2 through waste water conveyer pipe 11, and the steam discharge pipe of heat exchanger 10 is connected with the waste gas combustion chamber, and the gas vent of heat exchanger 10 is connected with outlet duct 12, and outlet duct 12 is connected with spray column 3. When the waste gas heat exchanger works, high-temperature waste gas which is combusted to 700 ℃ or above in the waste gas combustion chamber enters the heat exchanger from the exhaust pipe, waste water enters from a water inlet of the heat exchanger, the high-temperature waste gas heats the waste water to become steam by utilizing energy conversion, the steam returns to the waste gas combustion chamber through the steam discharge pipe to be combusted, the waste gas which exchanges heat with the waste water is discharged from an exhaust port of the heat exchanger, and the waste gas can reach the emission requirement after being subjected to desulfurization, deacidification and dust removal treatment by the spray tower and can be directly discharged. It should be noted that the heat exchanger is a mature technology in the prior art, as long as the heat exchange between the gas and the water can be realized, for example, an existing fixed tube plate heat exchanger.
In this embodiment, a combustion chamber 13 and a reaction chamber 14 are sequentially arranged inside the waste gas combustion chamber 4 along the flow direction of the waste gas, and the combustion chamber 13 is located at one end of the waste gas combustion chamber 4 close to the gas inlet pipe 6; the heating assembly 8 is arranged in the combustion chamber 13; the steam discharge pipe 9 communicates with the combustion chamber. Regenerated rubber tail gas is followed the intake pipe and is inputed the combustion chamber in, and heating element burns waste gas to 700 degrees or above, utilizes high temperature to handle waste gas, and later waste gas short-term the staying in the reaction chamber, the abundant reaction of being convenient for.
In this embodiment, one end of the exhaust gas combustion chamber 4 close to the exhaust pipe 7 is provided with a heat storage cavity 15 communicated with the reaction cavity 14, a heat storage packing layer 16 or a catalytic packing layer is arranged in the heat storage cavity 15, and the heat storage packing layer or the catalytic packing layer heats the gas combusted by the heating assembly again, so that the gas combusted by the heating assembly reaches 700 degrees or more uniformly, and the effective combustion of the exhaust gas is ensured.
In this embodiment, the heating assembly 8 is a heating wire. It should be noted that, the heating assembly may also adopt other heating structures, for example, an electromagnetic heating combustion chamber is adopted, which includes an electromagnetic heating coil, the electromagnetic heating coil is connected with an electromagnetic induction heating power supply through a conducting wire and is arranged outside the combustion chamber, the combustion chamber is used as the electromagnetic induction chamber, and a heat insulation layer is arranged between the outer wall of the combustion chamber and the electromagnetic heating coil. When the electromagnetic induction heating device works, the electromagnetic induction heating power supply heats the electromagnetic heating coil through the conducting wire, and the electromagnetic heating coil heats waste gas in the combustion cavity.
In the embodiment, the device further comprises an air supply device for conveying the plastic regeneration waste gas for the purification treatment device, wherein the air supply device comprises an air storage tank 27, a floating type air bag 29 is arranged inside the air storage tank 27, and a closed air storage chamber 30 is formed inside the floating type air bag 29 through liquid water seal; tail gas input pipe 18 is worn to be equipped with by the lower extreme of gas holder 27, and tail gas input pipe 18 is connected with the tail gas discharge port of tail gas production facility to do benefit to the pulsed tail gas of carrying the production, tail gas input pipe 18 is located and upwards stretches into gas receiver 30 after the liquid level is passed to the inside one end of liquid storage pot 27, and gas receiver 30 is used for storing pulsed tail gas, is connected with tail gas output tube 19 on the tail gas input pipe 18. When the tail gas production equipment works continuously, tail gas produced by the tail gas production equipment is conveyed through a tail gas conveying pipe, part of the tail gas is directly discharged from an exhaust pipe, and part of the tail gas enters a gas storage chamber inside the floating type air bag for storage; later when tail gas production facility stop work, floating gasbag passes through the blast pipe emission with the tail gas of storage with continuous form, and floating gasbag internal pressure diminishes this moment, and floating gasbag upwards floats, and the blast pipe combustion gas is carried to the cooler, because tail gas is continuous emission, combustion apparatus need not regularly to open and stop, and greatly reduced combustion apparatus opens and stops the energy consumption that causes, the energy saving.
It should be noted that the air supply device may be disposed at the front side of the cooler, or may be disposed at the rear side of the cooler; if the gas supply device is arranged on the front side of the cooler, the tail gas output by the gas supply device directly enters the cooler for cooling; if the gas supply device is arranged at the rear side of the cooler, the pulse type tail gas is firstly cooled by the cooler and then is input into the gas supply device.
In this embodiment, the air tank 27 contains liquid therein; the floating air bag 29 is reversely buckled on the liquid surface 28, and a closed air storage chamber 30 is formed between the floating air bag 29 and the liquid surface 28.
In this embodiment, the floating airbag 29 is a cylindrical structure with an opening at the bottom, and the opening at the bottom of the floating airbag 29 is located below the liquid level. The bottom opening of the floating air bag is combined with the liquid level to form a liquid water seal, and the floating air bag can float up and down, so the space size of the air storage chamber can be changed along with the floating air bag.
In this embodiment, the exhaust gas output pipe 19 is located outside the liquid storage tank 27, and when the floating type air bag 29 exhausts, the exhaust gas in the air storage chamber 30 flows first and flows out from the exhaust gas input pipe 18, and then is exhausted from the exhaust gas output pipe 19.
In this embodiment, a pressure detecting unit 31 for detecting the pressure inside the air reservoir 30 is provided inside the floating type air bag 29. Preferably, the pressure detection assembly employs a pressure sensor.
In this embodiment, the exhaust gas inlet pipe 18 and the exhaust gas outlet pipe 19 are both connected to control valves (not shown). The tail gas output pipe is positioned at the lower end of the side wall of the gas storage tank.
In this embodiment, an oil drain pipe 27 is connected to an upper end of the oil-water separation tank 2 so as to recycle the upper layer oil after the oil-water separation.
In this embodiment, the air supply device further includes an air supplement pipe 25 connected to the air inlet pipe 6, the air supplement pipe 25 is connected to an air supply device 26 for supplementing fresh air to the combustion device (i.e., supplementing oxygen to facilitate combustion of the exhaust gas by the combustion device), and the air supply device is electrically connected to the pressure detection assembly via a control unit. The pressure detection assembly detects the pressure in the air storage tank, when the pressure is higher, the exhaust gas is proved to be more, and at the moment, the exhaust gas combustion chamber supplies fresh air through the air supply device and the air supply pipe, so that the exhaust gas is ensured to be fully combusted; if the internal pressure of the air storage tank is lower, the exhaust gas is less, and the air supply device does not work. It should be noted that the control unit may be a single chip microcomputer, and the air supply device may be an air pump.
In this embodiment, the cooler 1, the oil-water separation tank 2, and the spray tower 3 are all existing mature products, and the structure thereof is not described herein, and the oil-water mixture can be separated in the oil-water separation tank by a standing method.
In this embodiment, the waste water combustion chamber and the waste gas combustion chamber may be integrated in structure. The cooler and the oil-water separator can be integrated in structure.
In this embodiment, the waste water input pipe is connected with the water pump, and the waste water input pipe and the water pump form a conveying system. The waste water input has two forms, one is that when the waste water is more, the waste water directly flows into the heat exchanger through the waste water input pipe; and when the waste water is less, the waste water is pumped to the heat exchanger through the water suction pump.
In this embodiment, during operation: the pulse plastic regeneration waste gas enters the gas storage chamber inside the floating type air bag through the tail gas input pipe 18 and is stored, and then the tail gas in the floating type air bag is conveyed into the purification treatment device through the tail gas output pipe; the plastic regeneration waste gas is cooled in the cooler 1 to form a gas phase waste gas and a liquid phase oil-water mixture, the oil-water mixture is subjected to oil-water separation in the oil-water separation tank 2, the separated water is input into a heat exchanger 10 in the waste water combustion chamber 5 through a waste water conveying pipe 11, and the separated oil is collected and reused; waste gas is inputed to waste gas combustion chamber 1's combustion chamber 13 through intake pipe 6 in, heating element 8 heats waste gas, later waste gas is in proper order through reaction chamber 14, enter into waste water combustion chamber 5's heat exchanger 10 behind the heat accumulation chamber 15, high temperature waste gas trades and heats waste water to becoming steam, steam returns through steam discharge pipe 9 and burns in the combustion chamber 13 and heat, and the waste gas after with waste water heat transfer then discharges from heat exchanger 10 gas vent, direct emission after further processing such as spray column 3 desulfurization, deacidification, dust removal.
Example two: as shown in fig. 3, the difference between the present embodiment and the first embodiment lies in that the structure of the gas supply device for delivering the reclaimed rubber tail gas to the purification treatment device is different, specifically: the gas supply device comprises a vertically-arranged cylindrical gas storage tank 17, the side wall of the gas storage tank 17 is connected with a tail gas input pipe 18 and a tail gas output pipe 19, the tail gas input pipe 18 is connected with a tail gas discharge port of the regenerated rubber production equipment so as to be beneficial to inputting the generated pulse type tail gas into the gas storage tank 17, and the gas storage tank 17 stores the tail gas; the inside of the gas storage tank 17 is provided with a controllable expansion piece 20 which is used for continuously extruding the gas in the gas storage tank 17 out from a tail gas discharge pipe 19, and the tail gas output pipe 19 is connected with a tail gas input port of the cooler 1. Store the tail gas of pulsed through the gas holder, can increase the inside pressure of gas holder during the expansion of the controllable inflation piece in the gas holder, utilize pressure to discharge the tail gas in the gas holder with continuous form from the tail gas output pipe, in tail gas output pipe exhaust tail gas is inputed the waste gas combustion room from the intake pipe after the cooler spray treatment, because tail gas is continuous emission, heating element need not regularly to open and stop, greatly reduced heating element opens and stops the energy consumption that causes, the energy saving.
In this embodiment, the controllable expansion member 20 includes a floating ball airbag 21 disposed inside the air storage tank 17, the floating ball airbag 21 is connected to an air tube 22 for inflation or exhaust, the air tube 22 can extend out of the air storage tank from the top of the air storage tank 17, and a sealing treatment is performed between the air tube and the top of the air storage tank to prevent tail gas from leaking.
In this embodiment, one end of the air tube 22 extending out of the air storage tank is connected to an inflation and exhaust device 23 for inflating and exhausting the floating ball airbag. It should be noted that the inflation and exhaust device can be an air pump with inflation and exhaust functions in the prior art, or can be an air pump and an air pump used in combination, and when the floating ball air bag needs to be inflated, the air pump works; when the floating ball air bag needs to be exhausted, the exhaust pump works. The expansion degree of the floating ball air bag is controlled, so that the internal pressure of the air storage tank can be regulated, the exhaust flow speed of the exhaust pipe can be controlled, and the exhaust speed of the tail gas can be regulated.
In this embodiment, a pressure detection assembly 24 for detecting the internal pressure of the air storage tank 17 is disposed inside the air storage tank 17. Preferably, the pressure detection assembly employs a pressure sensor.
In this embodiment, during operation: pulse plastic regeneration waste gas enters the gas storage tank 17 through the tail gas input pipe 18 and is stored, the controllable expansion piece 20 in the gas storage tank 17 increases the pressure in the gas storage tank 17 through expansion, and the gas in the gas storage tank 17 is conveyed to the purification treatment device from the tail gas output pipe 19 in a continuous mode by using the pressure; the plastic regeneration waste gas is cooled in the cooler 1 to form a gas-phase waste gas and a liquid-phase oil-water mixture, the oil-water mixture is subjected to oil-water separation in the oil-water separation tank 2, the separated water is input into a heat exchanger 10 in the waste water combustion chamber 5 through a waste water conveying pipe 11, and the separated oil is collected and reused; waste gas is inputed to waste gas combustion chamber 1's combustion chamber 13 through intake pipe 6 in, heating element 8 heats waste gas, later waste gas passes through reaction chamber 14 in proper order, enter into waste water combustion chamber 5's heat exchanger 10 behind the heat accumulation chamber 15, high temperature waste gas trades and heats waste water to becoming steam, steam returns through steam discharge pipe 9 and burns in the reaction chamber 14 and heat, and the waste gas after with waste water heat transfer then discharges from heat exchanger 10 gas vent, direct emission after further processing such as spray column 3 desulfurization, deacidification, dust removal.
If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications of the embodiments of the invention or equivalent substitutions for parts of the technical features are possible; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a plastic regeneration exhaust purification processing apparatus which characterized in that: the waste gas combustion device comprises a cooler, an oil-water separation tank, a spray tower, a waste gas combustion chamber and a waste water combustion chamber, wherein one end of the waste gas combustion chamber is connected with a waste gas output port of the cooler through an air inlet pipe, the other end of the waste gas combustion chamber is communicated with the waste water combustion chamber, and a heating assembly for combusting waste gas is arranged inside the waste gas combustion chamber; an oil-water output port of the cooler is communicated with an oil-water separation tank, a water outlet of the oil-water separation tank is connected with a waste water combustion chamber, the waste water combustion chamber is connected with a steam discharge pipe, the steam discharge pipe is communicated with a waste gas combustion chamber, waste gas combusted by a heating assembly enters the waste water combustion chamber to heat the waste water, and the waste water is heated to be steam and returns to the waste gas combustion chamber to be combusted by the steam discharge pipe; the spray tower is used for treating waste gas discharged from the waste water combustion chamber; still including being used for carrying the air feeder of plastic regeneration waste gas for purification treatment device, air feeder includes the gas holder, the inside of gas holder is equipped with floating gasbag, the inside of floating gasbag forms inclosed reservoir through liquid water seal, the reservoir is connected with the tail gas input tube, be connected with the tail gas output tube on the tail gas input tube.
2. The plastic recycling exhaust gas purifying device of claim 1, wherein: the waste water combustion chamber is internally provided with a heat exchanger, an air inlet of the heat exchanger is connected with an exhaust pipe of the waste gas combustion chamber, a water inlet of the heat exchanger is connected with a water outlet of the oil-water separation tank, a steam discharge pipe of the heat exchanger is connected with the waste gas combustion chamber, and an exhaust port of the heat exchanger is connected with the spray tower.
3. The plastic recycling exhaust gas purifying device of claim 1, wherein: the front part of the waste gas combustion chamber is sequentially provided with a combustion chamber and a reaction chamber along the flow direction of waste gas, and the combustion chamber is positioned at one end of the waste gas combustion chamber close to the gas inlet pipe; the heating assembly is arranged in the combustion chamber; the steam discharge pipe is communicated with the combustion cavity.
4. The plastic regeneration waste gas purification treatment device according to claim 3, wherein: one end of the waste gas combustion chamber close to the exhaust pipe is provided with a heat storage cavity communicated with the reaction cavity, and a heat storage packing layer or a catalytic packing layer is arranged in the heat storage cavity.
5. The plastic regeneration waste gas purification treatment device of claim 1, wherein: a pressure detection component for detecting the internal pressure of the air storage chamber is arranged in the floating type air bag; the air supply device is connected with the pressure detection assembly through the control unit.
6. The plastic recycling exhaust gas purifying device of claim 5, wherein: the air supply device further comprises an air supplementing pipe connected with the air inlet pipe, the air supplementing pipe is connected with an air supply device, and the air supply device is electrically connected with the pressure detection assembly through the control unit.
7. The plastic regeneration waste gas purification treatment device of claim 1, wherein: the waste water combustion chamber and the waste gas combustion chamber can be combined into a whole in structure; the cooler and the oil-water separator can be integrated in structure.
8. The working method of the plastic regeneration waste gas purification treatment device is characterized in that: comprises the plastic regeneration waste gas purification treatment device as claimed in any one of claims 1 to 7, and when in operation: the pulse plastic regeneration waste gas enters a gas storage chamber inside the floating type air bag through a tail gas input pipe and is stored, and then the tail gas in the floating type air bag is conveyed into the purification treatment device through a tail gas output pipe; the plastic regeneration waste gas is cooled in the cooler to form a gas-phase waste gas and a liquid-phase oil-water mixture, the oil-water mixture realizes oil-water separation in an oil-water separation tank, the separated water is input into a heat exchanger in the waste water combustion chamber through a waste water conveying pipe, and the separated oil is collected and reused; waste gas is inputed to the combustion chamber of waste gas combustion chamber through the intake pipe in, heating element heats waste gas, later waste gas enters into the heat exchanger of waste water combustion chamber behind reaction chamber, the heat accumulation chamber in proper order, high temperature waste gas trades and heats waste water to becoming steam, and steam returns to the combustion intracavity through the steam delivery pipe and burns the heating, and then follow the heat exchanger gas vent with waste water heat transfer after the waste gas discharges, discharges after the spray column is handled.
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| CN117123012A (en) * | 2023-08-25 | 2023-11-28 | 江苏景南环保科技有限公司 | Flue gas treatment system and process for organic waste gas incineration catalytic furnace |
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