CN111013315A - Organic waste gas adsorption and desorption device - Google Patents
Organic waste gas adsorption and desorption device Download PDFInfo
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- CN111013315A CN111013315A CN201911207536.XA CN201911207536A CN111013315A CN 111013315 A CN111013315 A CN 111013315A CN 201911207536 A CN201911207536 A CN 201911207536A CN 111013315 A CN111013315 A CN 111013315A
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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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses an organic waste gas adsorption and desorption device, which belongs to the technical field of waste gas treatment and comprises a gas supply fan, a drying fan, a condenser, a material pumping pump, two adsorption tanks and two discharge valves, wherein a gas inlet pipe and a drying pipe are arranged on the side wall of the lower part of each adsorption tank, a steam pipe, a gas outlet pipe and a pressure relief pipe are arranged at the upper end of each adsorption tank, a discharge pipe is arranged at the bottom of each adsorption tank, the drying pipes on the two adsorption tanks are communicated with the drying fan through pipelines, the discharge pipes on the two adsorption tanks are respectively connected with the two discharge valves in a one-to-one correspondence manner, the two discharge valves are communicated with the condenser through pipelines, the condenser is communicated with the material pumping pump through pipelines, an adsorption adjusting component is arranged in each adsorption tank, and control valves are arranged at the positions of the steam pipe. The invention can improve the treatment efficiency of waste gas in the adsorption tank, reduce the air pressure requirement, reduce the potential safety hazard, and save energy and protect environment because the discharge valve is not driven by external energy.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an organic waste gas adsorption and desorption device.
Background
The industrial waste gas containing organic substances can be discharged after being treated so as to avoid polluting the environment. The processing steps are as follows: the industrial waste gas passes through the granular carbon bed layer, and organic matters in the industrial waste gas are adsorbed and intercepted by the granular carbon, so that the waste gas is purified. When the organic matter adsorbed by the granular carbon approaches or reaches saturation, saturated water vapor (or inert gas nitrogen) is used for heating the granular carbon bed layer, so that heat is provided for the organic matter adsorbed by the granular carbon, the kinetic energy of the organic matter is improved, the organic matter is free from the constraint of the adsorbent, the organic matter is blown off and released, the air and the steam form a vaporous gas-liquid mixture, and the vaporous gas-liquid mixture is driven by the steam to be discharged out of the adsorber. After the mixture is subjected to heat exchange treatment by a condenser, most of gas is condensed into liquid. If the recovered organic solvent is not mutually soluble with water, the organic solvent can be separated out through gravity layering and can be directly used for production or used for production after being refined; if the recovered solvent is miscible with water, separation treatment in a step such as rectification is required to recover the organic solvent. The desorbed granular carbon bed has a relatively high water content and a relatively high temperature, and cannot be directly subjected to re-adsorption operation, and needs to be dried and cooled. The blower is utilized to introduce normal-temperature clean air into the granular carbon bed layer, so that water in the granular carbon bed layer can be effectively swept out, the granular carbon bed layer is cooled, the temperature is reduced, and the granular carbon is ensured to recover higher adsorption capacity.
Chinese patent No. CN106807178A discloses a device and method for treating organic waste gas by adsorbent adsorption and hot dry gas desorption, comprising a treatment mechanism, an adsorption mechanism and a desorption mechanism, wherein the treatment mechanism comprises a first fan, a preprocessor and a condenser, the adsorption mechanism comprises at least two parallel adsorbers, the adsorbers are filled with adsorbent, and the desorption mechanism comprises a second fan, a dehumidifier and a heater. The invention has simple and scientific structure, various types of organic waste gases which can be treated, improved capability of adsorbing organic solvents, no wastewater generated in the recovery process, no secondary pollution, low water content of the recovered organic solvents, direct production and reutilization without secondary treatment, equipment drying and corrosion resistance, lower investment and maintenance cost, and the tail gas discharged after treatment can reach the national standard. However, the patent still has the following technical problems that the adsorbent in the adsorber is accumulated, the exhaust gas needs to pass through multiple layers of adsorbents after entering the adsorber, and after the adsorbent at the initial position is absorbed and saturated, the subsequent exhaust gas still needs to pass through the saturated adsorbent and be adsorbed by the adsorbent at the lower layer, which reduces the efficiency of exhaust gas adsorption, increases the pressure environment in the adsorber, and has potential safety hazards such as explosion.
In addition, a rotary sealing valve, a valve bank and a tower body are disclosed in the Chinese patent No. CN104340619A, and a rotary discharge valve is disclosed in the Chinese patent No. CN203048217U, however, the two discharge valves need to consume energy to work, and the requirements of energy conservation and environmental protection cannot be met.
Disclosure of Invention
The invention aims to provide an organic waste gas adsorption and desorption device, which aims to solve the technical problems that in the prior art, the adsorption efficiency is reduced and the potential safety hazard is increased due to unreasonable layering of an adsorbent.
The invention provides an organic waste gas adsorption and desorption device which comprises a gas supply fan, a drying fan, a condenser, a material pumping pump, two adsorption tanks and two discharge valves, wherein the side wall of the lower part of each adsorption tank is provided with a gas inlet pipe and a drying pipe, the upper end of each adsorption tank is provided with a steam pipe, a gas outlet pipe and a pressure relief pipe, the bottom of each adsorption tank is provided with a discharge pipe, the gas inlet pipes on the two adsorption tanks are communicated with the gas supply fan through pipelines, the drying pipes on the two adsorption tanks are communicated with the drying fan through pipelines, the discharge pipes on the two adsorption tanks are respectively connected with the two discharge valves in a one-to-one correspondence manner, the two discharge valves are communicated with the condenser through pipelines, the condenser is communicated with the material pumping pump through a pipeline, each adsorption tank is internally provided with an adsorption adjusting assembly, and the steam pipe, the air outlet pipe, the pressure relief pipe, the air inlet pipe and the drying tank are respectively provided with a control valve.
Further, each adsorption adjusting component comprises an adjusting motor, an adjusting shaft, a fixing frame, three fixing net frames and two adjusting net frames, wherein the adjusting shaft is vertically arranged in the adsorption tank, the fixing frame is arranged at the bottom inside the adsorption tank, the lower end of the adjusting shaft is rotationally connected with the fixing frame, the adjusting motor is arranged at the upper end of the adsorption tank, the output end of the adjusting motor is fixedly connected with the upper end of the adjusting shaft, the three fixing net frames are sequentially arranged in the adsorption tank from top to bottom, a separation cavity is arranged between every two adjacent fixing net frames, the two adjusting net frames are respectively arranged in the two separation cavities, the two adjusting net frames are sleeved on the adjusting shaft, a plurality of first vent groups are arranged on the two fixing net frames below the three fixing net frames, the plurality of first vent groups are distributed in a circumference, the plurality of first vent groups on the two fixing net frames are in one-to-one correspondence, the adjusting net racks positioned below the two adjusting net racks are provided with a plurality of second vent hole groups, the second vent hole groups are in one-to-one correspondence with the first vent hole groups, the adjusting net racks positioned above the two adjusting net racks are provided with a plurality of third vent hole groups, and the third vent hole groups are in one-to-one correspondence with the second vent hole groups.
Further, the diameter of the adjusting net rack is larger than that of the fixing net rack.
Further, the bleeder valve includes the shell, the upper end and the lower extreme of shell are equipped with the inlet pipe respectively and arrange the material pipe, the one end and the discharging pipe of inlet pipe are connected, the discharge pipe passes through pipeline and condenser intercommunication, the inside of shell is equipped with row material chamber, the middle part in row material chamber is equipped with row material axle, row epaxial cover of material is equipped with the fixed block, be equipped with the flourishing silo that a plurality of is the circumference and distributes on the lateral wall of fixed block, every all be equipped with flourishing material frame, every in the flourishing silo the bottom of flourishing material frame all is equipped with the spring, the inside of shell is equipped with limit stop, every one side of flourishing material frame all is equipped with the breach with limit stop matched with.
Further, every the inside bottom of adsorption tank all is equipped with first baffle, first baffle is the hourglass hopper-shaped of invering, and forms the air gap between the edge of first baffle and the inner wall of adsorption tank, the one end of intake pipe extends to the middle part of first baffle and vertical setting downwards.
Furthermore, every the inside upper portion of adsorption tank is equipped with the second baffle, the second baffle is the bamboo hat form of invering, and forms the exhaust clearance between the inside of second baffle and adsorption tank.
Compared with the prior art, the invention has the beneficial effects that:
firstly, in the working process, the second vent hole group and all the first vent hole groups are staggered, so that after waste gas enters the adsorption tank, part of the waste gas directly passes through the activated carbon in the fixed net rack at the lowest part from the lower end of the fixed net rack at the lowest part, after part of the waste gas enters the first vent hole groups, the upper end of the first vent hole group is blocked by the activated carbon in the adjusting net rack at the upper part, so that the waste gas can only diffuse into the activated carbon at the side part, the contact area of the waste gas and the activated carbon is increased, the adsorption efficiency of the activated carbon on the waste gas is improved, after the working time, the activated carbon in the fixed net rack at the lowest part is adsorbed and close to saturation, the adjusting motor works to drive the adjusting shaft to rotate for a certain angle, one vent hole group in the second vent hole group is communicated with the two first vent hole groups at the upper end and the lower end, and the waste gas can enter the adjusting net rack and, at the moment, the upper end of the first vent hole group on the middle fixed net rack is blocked by the active carbon in the adjusting net rack above the first vent hole group, and the waste gas is directly diffused in the adjusting net rack below and the middle fixed net rack, so that the waste gas can be prevented from passing through the lowest fixed net rack and quickly entering the upper layer to be adsorbed by the active carbon;
through the steps, the waste gas can gradually and quickly enter the corresponding activated carbon layer in the adsorption tank for adsorption in the treatment process, so that the waste gas is prevented from greatly penetrating through the activated carbon layer which is saturated in adsorption, the contact area of the waste gas and the activated carbon can be increased, the adsorption efficiency of the activated carbon on the waste gas is improved, the air pressure requirement of the waste gas in the adsorption tank is reduced, and the potential safety hazard in the adsorption tank is reduced.
Secondly, when the waste gas adsorption device is used, the two adsorption tanks work alternately, when one adsorption tank performs waste gas adsorption work, the other adsorption tank stops adsorption, and activated carbon treatment is performed to recover the adsorption capacity of the activated carbon on the waste gas; the alternative use of the two can ensure the continuous treatment of the waste gas.
Thirdly, when the material containing frame is used, one side of the material containing frame is abutted to the limit stop so that the discharge shaft cannot rotate, materials discharged from the adsorption tank are added into the material containing frame through the feeding pipe, after the materials in the material containing frame reach a certain weight, the spring is compressed to contract, the material containing frame is separated from the limit stop, the discharge shaft is driven to rotate under the action of gravity of the material containing frame, when the side wall of the next material containing frame is abutted to the limit stop, the rotation is stopped, the work is repeated, energy driving is not needed, and the material containing frame is energy-saving and environment-friendly.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a top view of an adsorption canister of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a top view of the discharge valve of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a partial variation of the operation of the sorption adjustment assembly of the present invention.
Reference numerals:
the device comprises a gas supply fan 1, a drying fan 2, a condenser 3, a material pumping pump 4, an adsorption tank 5, a gas inlet pipe 51, a drying pipe 52, a steam pipe 53, a gas outlet pipe 54, a pressure relief pipe 55, a discharge pipe 56, a discharge valve 6, a shell 61, a feed pipe 62, a discharge pipe 63, a discharge cavity 64, a discharge shaft 65, a fixed block 66, a material containing groove 67, a material containing frame 68, a spring 69, a limit stop 610, a notch 611, an adsorption adjusting assembly 7, an adjusting motor 71, an adjusting shaft 72, a fixed frame 73, a fixed frame 74, an adjusting frame 75, a first vent hole group 76, a second vent hole group 77, a third vent hole group 78, a control valve 8, a first baffle 9 and a second baffle 10.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, an embodiment of the present invention provides an organic waste gas adsorption and desorption apparatus, including a gas supply fan 1, a drying fan 2, a condenser 3, a material pumping pump 4, two adsorption tanks 5 and two material discharging valves 6, wherein a gas inlet pipe 51 and a drying pipe 52 are respectively disposed on a lower side wall of each adsorption tank 5, a steam pipe 53, a gas outlet pipe 54 and a pressure discharging pipe 55 are respectively disposed at an upper end of each adsorption tank 5, a material discharging pipe 56 is disposed at a bottom of each adsorption tank 5, the gas inlet pipes 51 on the two adsorption tanks 5 are both communicated with the gas supply fan 1 through a pipeline, the drying pipes 52 on the two adsorption tanks 5 are both communicated with the drying fan 2 through a pipeline, the material discharging pipes 56 on the two adsorption tanks 5 are respectively connected with the two material discharging valves 6 in one-to-one correspondence, the two material discharging valves 6 are both communicated with the condenser 3 through a pipeline, the condenser 3 is communicated with the, an adsorption adjusting component 7 is arranged in each adsorption tank 5, and control valves 8 are arranged at the steam pipe 53, the air outlet pipe 54, the pressure relief pipe 55, the air inlet pipe 51 and the drying tanks; when the waste gas adsorption device is used, the two adsorption tanks 5 work alternately, when one adsorption tank 5 performs waste gas adsorption work, the other adsorption tank 5 stops adsorption, and activated carbon treatment is performed to recover the adsorption capacity of the activated carbon on the waste gas; in the course of the work, follow the intake pipe 51 through air supply fan 1 with waste gas in the conveyer belt adsorption tank 5, waste gas and the active carbon contact in the adsorption tank 5 among the adsorption regulating assembly 7, the active carbon adsorbs poisonous and harmful substance, later discharge clean tail gas through outlet duct 54, after the active carbon adsorption saturation in adsorption tank 5, inwards let in steam through steam pipe 53, steam heats the active carbon, make the adsorbed material of active carbon break away from, and discharge from discharging pipe 56 under the drive of steam, discharge speed is controlled through bleeder valve 6, and advance to go into condenser 3 and condense under the effect of pump 4, discharge at last and carry out subsequent processing, later, rethread drying pipe 52 lets in dry cold air to adsorption tank 5, make the active carbon cooling and dry.
Specifically, every adsorb adjusting part 7 all includes regulating motor 71, regulating shaft 72, mount 73, three fixed net rack 74 and two regulation rack 75, regulating shaft 72 is vertical setting in adsorption tank 5, mount 73 installs the bottom in adsorption tank 5 inside, the lower extreme and the mount 73 of regulating shaft 72 rotate to be connected, regulating motor 71 installs in the upper end of adsorption tank 5 and regulating motor 71's output and the upper end fixed connection of regulating shaft 72, three fixed net rack 74 top-down sets gradually in adsorption tank 5 and all is equipped with the separation chamber between every two adjacent fixed net rack 74, two regulation rack 75 set up respectively two separate intracavity and two regulation rack 75 all overlap on regulating shaft 72, all be equipped with a plurality of first ventilation hole group 76 on two fixed net rack 74 of below in three fixed net rack 74, the plurality of first ventilation hole groups 76 are distributed circumferentially, the plurality of first ventilation hole groups 76 on the two fixed net racks 74 correspond one to one, the plurality of second ventilation hole groups 77 are arranged on the adjusting net rack 75 positioned below the two adjusting net racks 75, the plurality of second ventilation hole groups 77 correspond one to the plurality of first ventilation hole groups 76, the plurality of third ventilation hole groups 78 are arranged on the adjusting net rack 75 positioned above the two adjusting net racks 75, and the plurality of third ventilation hole groups 78 correspond one to the plurality of second ventilation hole groups 77; each second vent hole group 77 contains two hole groups, each hole group can be correspondingly communicated with the corresponding first vent hole group 76, the included angle between the two hole groups is the same as the included angle between one hole group and the first vent hole group 76, and the third vent hole group 78 is always communicated with one hole group; in the working process, firstly, the second vent hole group 77 and all the first vent hole groups 76 are staggered, so that after the waste gas enters the adsorption tank 5, part of the waste gas directly passes through the activated carbon in the fixed net rack 74 from the lower end of the lowest part, after part of the waste gas enters the first vent hole group 76, because the upper end of the first vent hole group 76 is blocked by the activated carbon in the adjusting net rack 75 above the first vent hole group, the waste gas can only diffuse into the activated carbon on the side, so that the contact area of the waste gas and the activated carbon is increased, the adsorption efficiency of the activated carbon on the waste gas is improved, after working for a certain time, the activated carbon in the fixed net rack 74 at the lowest part is adsorbed and close to saturation, the adjusting motor 71 works to drive the adjusting shaft 72 to rotate for a certain angle, so that one vent hole group in the second vent hole group 77 is communicated with the two first vent hole groups 76 at the upper end and the lower end, the waste gas can enter the adjusting net rack 75 and the, at this time, the upper end of the first ventilation hole group 76 on the middle fixed net rack 74 is blocked by the activated carbon in the adjusting net rack 75 above, the waste gas is directly diffused in the adjusting net rack 75 below and the middle fixed net rack 74, so that the waste gas can be prevented from passing through the lowest fixed net rack 74 and rapidly entering the upper layer to be adsorbed by the activated carbon, thereby further improving the adsorption efficiency of the activated carbon on the waste gas, reducing the air pressure in the adsorption tank 5, and reducing the potential safety hazard, when the two fixed net racks 75 are operated for a certain time again, the two fixed net racks 75 rotate for a certain angle again, so that the third ventilation hole group 78 is communicated with the first ventilation hole group 76, thereby the waste gas can further rapidly enter the activated carbon on the upper layer in the adsorption tank 5 to be adsorbed, wherein, no hole is arranged in the last fixed net rack 74, so that the waste gas below can pass through the activated carbon anyway, the adsorption effect of the waste gas is ensured, and the phenomenon that part of the waste gas is adsorbed and can not reach the emission standard is avoided.
Specifically, the adjusting wire frame 75 has a diameter larger than that of the fixed wire frame 74, and if the adjusting wire frame 75 has a diameter equal to or smaller than that of the fixed wire frame 74, the exhaust gas passing through the fixed wire frame 74 easily passes through a gap between the adjusting wire frame 75 and the inside of the adsorption tank 5, resulting in poor treatment of the exhaust gas.
Specifically, the discharge valve 6 comprises a shell 61, the upper end and the lower end of the shell 61 are respectively provided with a feeding pipe 62 and a discharging pipe 63, one end of the feeding pipe 62 is connected with a discharging pipe 56, the discharging pipe 63 is communicated with the condenser 3 through a pipeline, a discharging cavity 64 is arranged inside the shell 61, a discharging shaft 65 is arranged in the middle of the discharging cavity 64, a fixing block 66 is sleeved on the discharging shaft 65, the side wall of the fixing block 66 is provided with a plurality of circumferentially distributed material containing grooves 67, each material containing groove 67 is internally provided with a material containing frame 68, the bottom of each material containing frame 68 is provided with a spring 69, a limit stop 610 is arranged inside the shell 61, and one side of each material containing frame 68 is provided with a notch 611 matched with the limit stop 610; when the material containing frame is used, one side of the material containing frame 68 is abutted to the limit stop 610 to enable the discharging shaft 65 to be incapable of rotating, materials discharged from the adsorption tank 5 are added into the material containing frame 68 through the feeding pipe 62, after the materials in the material containing frame 68 reach a certain weight, the compression spring 69 contracts, the material containing frame 68 is separated from the limit stop 610, the discharging shaft 65 is driven to rotate under the action of gravity of the material containing frame 68, after the next material containing frame 68 side wall is abutted to the limit stop 610, the rotation is stopped, the work is repeated, the notch 611 is arranged, after the material containing frame 68 rotates a certain angle, the material containing frame 68 bears the gravity of the materials in the vertical direction to be reduced, the spring 69 can bounce slightly, if the notch 611 is not arranged, the other side wall of the material containing frame 68 is easily abutted to the limit stop 610, and the continuous work cannot be caused.
Specifically, a first baffle 9 is arranged at the bottom inside each adsorption tank 5, the first baffle 9 is in an inverted funnel shape, a ventilation gap is formed between the edge of the first baffle 9 and the inner wall of the adsorption tank 5, and one end of the air inlet pipe 51 extends to the middle of the first baffle 9 and is vertically arranged downwards; the setting of first baffle 9 makes waste gas get into adsorption tank 5 back from intake pipe 51, need upwards pass the active carbon again along first baffle 9 to the lateral part diffusion, and at the in-process of diffusion, partial particle impurity in the waste gas can separate out, can reduce the absorption burden of active carbon.
Specifically, a second baffle 10 is arranged at the upper part of the interior of each adsorption tank 5, the second baffle 10 is in an inverted bamboo hat shape, and an exhaust gap is formed between the second baffle 10 and the interior of the adsorption tank 5.
The working principle of the invention is as follows: the two adsorption tanks 5 work alternately, when one adsorption tank 5 performs waste gas adsorption work, the other adsorption tank 5 stops adsorption, and activated carbon treatment is performed to recover the adsorption capacity of the activated carbon on the waste gas; in the working process, the exhaust gas is conveyed from the air inlet pipe 51 to the adsorption tank 5 by the air supply fan 1, the second vent hole group 77 and all the first vent hole groups 76 are staggered, so that after the exhaust gas enters the adsorption tank 5, part of the exhaust gas directly passes through the activated carbon in the adsorption tank from the lower end of the fixed net rack 74 at the lowest part, after part of the exhaust gas enters the first vent hole group 76, because the upper end of the first vent hole group 76 is blocked by the activated carbon in the adjusting net rack 75 at the upper part, the exhaust gas can only diffuse into the activated carbon at the side, so that the contact area of the exhaust gas and the activated carbon is increased, the adsorption efficiency of the activated carbon on the exhaust gas is improved, after working for a certain time, the activated carbon in the fixed net rack 74 at the lowest part is adsorbed and nearly saturated, the adjusting motor 71 works to drive the adjusting shaft 72 to rotate for a certain angle, so that one vent hole group in the second vent hole group 77 is communicated with the two first vent hole, the waste gas can enter the adjusting net rack 75 and the middle fixing net rack 74, at this time, the upper end of the first ventilation hole group 76 on the middle fixing net rack 74 is blocked by the active carbon in the adjusting net rack 75 above the upper end, the waste gas is directly diffused in the adjusting net rack 75 below and the middle fixing net rack 74, so that the waste gas can be prevented from passing through the lowest fixing net rack 74 to rapidly enter the upper layer to be adsorbed by the active carbon, thereby further improving the adsorption efficiency of the active carbon on the waste gas, reducing the air pressure in the adsorption tank 5 and reducing the potential safety hazard, after working again for a certain time, the two adjusting net racks 75 rotate again for a certain angle, so that the third ventilation hole group 78 is communicated with the first ventilation hole group 76, thereby the waste gas can further rapidly enter the upper layer in the adsorption tank 5 to be adsorbed by the active carbon, wherein, no hole is arranged in the last fixing net rack 74, make the waste gas of below all to pass this one deck active carbon anyhow, guarantee the adsorption effect of waste gas, later discharge clean tail gas through outlet duct 54, after the active carbon adsorption saturation in adsorption tank 5, inwards let in steam through steam pipe 53, steam heats the active carbon, make the adsorbed material of active carbon break away from out, and discharge from discharging pipe 56 under the drive of steam, control ejection of compact speed through bleeder valve 6, and advance to go into condenser 3 and condense under the effect of pump 4, discharge at last and carry out subsequent processing, later, dry cold air is let in to adsorption tank 5 to rethread drying tube 52, make the active carbon cooling and dry.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides an organic waste gas adsorbs desorption device which characterized in that: the device comprises a gas supply fan (1), a drying fan (2), a condenser (3), a material pumping pump (4), two adsorption tanks (5) and two discharge valves (6), wherein each adsorption tank (5) is provided with a gas inlet pipe (51) and a drying pipe (52) on the side wall of the lower part, the upper end of each adsorption tank (5) is provided with a steam pipe (53), a gas outlet pipe (54) and a pressure relief pipe (55), the bottom of each adsorption tank (5) is provided with a discharge pipe (56), the gas inlet pipes (51) on the two adsorption tanks (5) are communicated with the gas supply fan (1) through pipelines, the drying pipes (52) on the two adsorption tanks (5) are communicated with the drying fan (2) through pipelines, the discharge pipes (56) on the two adsorption tanks (5) are respectively connected with the two discharge valves (6) in a one-to-one correspondence manner, and the two discharge valves (6) are communicated with the condenser (3) through pipelines, the condenser (3) is communicated with the material pumping pump (4) through a pipeline, each adsorption tank (5) is internally provided with an adsorption adjusting assembly (7), and the steam pipe (53), the air outlet pipe (54), the pressure relief pipe (55), the air inlet pipe (51) and the drying tank are respectively provided with a control valve (8).
2. The organic waste gas adsorption and desorption device according to claim 1, wherein: every adsorb adjusting part (7) all includes accommodate motor (71), regulating spindle (72), mount (73), three fixed net rack (74) and two regulation rack (75), regulating spindle (72) are vertical setting in adsorption tanks (5), the bottom at adsorption tanks (5) inside is installed to mount (73), the lower extreme and mount (73) of regulating spindle (72) rotate to be connected, accommodate motor (71) install in adsorption tanks (5) the upper end and the output of accommodate motor (71) and the upper end fixed connection of regulating spindle (72), three fixed net rack (74) top-down sets gradually in adsorption tanks (5) and all is equipped with the separation chamber between every two adjacent fixed net rack (74), two regulation rack (75) set up respectively at two separation intracavity and two regulation rack (75) all overlap and establish on regulating spindle (72), all be equipped with the first venthole group of a plurality of (76) on two fixed net racks (74) of below in three fixed net rack (74), the first venthole group of a plurality of (76) is the circumference and distributes, the first venthole group of a plurality of (76) one-to-one on two fixed net racks (74), be equipped with a plurality of second venthole group (77) on the regulation net rack (75) that lie in the below in two regulation net racks (75), a plurality of second venthole group (77) and the first venthole group of a plurality of (76) one-to-one, be equipped with a plurality of third venthole group (78) on the regulation net rack (75) that lie in the top in two regulation net racks (75), a plurality of third venthole group (78) and a plurality of second venthole group (77) one-to-one.
3. The organic waste gas adsorption and desorption device according to claim 2, wherein: the diameter of the adjusting net rack (75) is larger than that of the fixed net rack (74).
4. The organic waste gas adsorption and desorption device according to claim 1, wherein: the discharge valve (6) comprises a shell (61), the upper end and the lower end of the shell (61) are respectively provided with a feeding pipe (62) and a discharging pipe (63), one end of the feeding pipe (62) is connected with the discharging pipe (56), the discharging pipe (63) is communicated with the condenser (3) through a pipeline, a discharge cavity (64) is arranged inside the shell (61), a discharge shaft (65) is arranged in the middle of the discharge cavity (64), a fixed block (66) is sleeved on the discharging shaft (65), a plurality of material containing grooves (67) which are distributed in a circumferential manner are arranged on the side wall of the fixed block (66), a material containing frame (68) is arranged in each material containing groove (67), a spring (69) is arranged at the bottom of each material containing frame (68), the inside of shell (61) is equipped with limit stop (610), every one side of flourishing material frame (68) all is equipped with limit stop (610) matched with breach (611).
5. The organic waste gas adsorption and desorption device according to claim 1, wherein: every the inside bottom of adsorption tank (5) all is equipped with first baffle (9), first baffle (9) are the funnel shaped of invering, and form the air gap between the edge of first baffle (9) and the inner wall of adsorption tank (5), the one end of intake pipe (51) extends to the middle part of first baffle (9) and vertical setting downwards.
6. The organic waste gas adsorption and desorption device according to claim 1, wherein: every the inside upper portion of adsorption tank (5) is equipped with second baffle (10), second baffle (10) are the bamboo hat form of inversion, and form exhaust clearance between the inside of second baffle (10) and adsorption tank (5).
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| CN201911207536.XA CN111013315A (en) | 2019-11-30 | 2019-11-30 | Organic waste gas adsorption and desorption device |
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| CN201911207536.XA CN111013315A (en) | 2019-11-30 | 2019-11-30 | Organic waste gas adsorption and desorption device |
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| CN113769538A (en) * | 2021-09-14 | 2021-12-10 | 华茂环保科技(江阴)有限公司 | Refrigeration equipment for processing high-temperature waste heat of vOCs (volatile organic compounds) and use method thereof |
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Application publication date: 20200417 |