CN211098267U - Adsorption recovery device for efficiently treating organic waste gas - Google Patents
Adsorption recovery device for efficiently treating organic waste gas Download PDFInfo
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- CN211098267U CN211098267U CN201921494915.7U CN201921494915U CN211098267U CN 211098267 U CN211098267 U CN 211098267U CN 201921494915 U CN201921494915 U CN 201921494915U CN 211098267 U CN211098267 U CN 211098267U
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Abstract
The utility model discloses an adsorption recovery device for efficiently treating organic waste gas, which comprises a buffer tank, an adsorption unit, an air inlet fan, a tube nest condenser, a gas-liquid separator, a spiral plate condenser, a layering tank, a solvent tank and a purging fan; the utility model provides an efficient handling organic waste gas's absorption recovery unit makes organic industrial waste gas purification more abundant, realizes stable discharge to reach standard, and organic matter clearance > 99%'s technological effect in the realization industrial waste gas, the waste gas after the processing lasts discharge to reach standard, and it is abundant to purify waste gas, the organic matter rate of recovery is high.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, in particular to high-efficient adsorption recovery device who handles organic waste gas.
Background
The emission of waste gas containing organic pollutants generated in industrial production is an important factor causing air pollution, and the treatment of organic pollutants in industrial organic waste gas to ensure that the organic pollutants are emitted cleanly is an important subject of current air pollution treatment. In the existing process technology for treating industrial organic waste gas, an activated carbon adsorption method is widely applied. The main principle is that the organic matter components in the waste gas are adsorbed by the active carbon, the adsorbed organic matter components are desorbed and separated from the adsorbing material, and the active carbon is regenerated after desorption, so that the active carbon is recovered for adsorption activity and recycling. The existing waste gas treatment device adopting the technical process of 'activated carbon adsorption-water vapor desorption recovery-air blowing regeneration' comprises the following technical processes: waste gas containing organic components is connected into an adsorber filled with activated carbon materials through a filter and an induced draft fan, and the waste gas is purified and discharged into the atmosphere from a discharge port after the organic components in the waste gas are adsorbed and captured by the activated carbon; when the activated carbon is adsorbed to a certain amount or is saturated, introducing water vapor into the adsorber, carrying out condensation and recovery on organic components adsorbed in the activated carbon by the water vapor, and then cooling the organic components by a cooling device; the desorbed active carbon has high temperature and high humidity, and then natural air is introduced to blow, cool and dehumidify the adsorption material, so that the adsorption active carbon recovers activity for reuse, and the blown air flow is exhausted to the atmosphere from the exhaust port of the adsorber. The three processes are circularly carried out in sequence, thereby achieving the effect of continuously purifying the organic waste gas. However, the prior art has the following defects:
(1) the process is single, and the treated waste gas can not be discharged continuously up to the standard for the waste gas with large air volume or high concentration;
(2) natural air introduced in the process of purging and regenerating the adsorption material is directly discharged into the atmosphere after purging, and because a certain amount of organic matters remain in the desorbed adsorption material, the organic matters are taken away by the purged air and discharged into the atmosphere in the purging process, so that the discharge of waste gas exceeds the standard, and the recovery rate of the organic matters is influenced;
(3) when an organic matter concentration monitoring instrument is installed at a purification discharge port of the adsorber, due to high temperature and high humidity of the desorbed adsorption material, a large amount of high temperature and high humidity mixed gas flow is brought out of the discharge port in the early stage of the purging process, so that a sampling pipe and a sampling sample of the organic matter concentration monitoring instrument are greatly influenced, and a small amount of organic matter components contained in residual water vapor are attached to the wall of the sampling pipe or a discharge chimney, so that the data accuracy of the concentration monitoring instrument is also greatly influenced;
(4) the automatic control system is simple, automatic adjustment measures are insufficient when abnormal operation occurs, manual intervention and adjustment are needed, labor cost is increased, and the safety guarantee is insufficient.
SUMMERY OF THE UTILITY MODEL
To the big high concentration organic waste gas of prior art can not last discharge to reach standard, air sweep the adsorption material regeneration back discharge exceeds standard, influence exhaust port concentration detection instrument's monitoring, automatic control system to the device operation automatic regulation when unusual and the problem that the safeguard is deficient, the utility model provides an adsorption and recovery device of high-efficient handling organic waste gas realizes industrial waste gas high-efficient handling, environmental protection's technological effect.
In order to solve the technical problem, the utility model discloses a technical scheme is:
an adsorption recovery device for efficiently treating organic waste gas comprises a buffer tank, an adsorption unit, an air inlet fan, a tube array condenser, a gas-liquid separator, a spiral plate condenser, a layering tank, a solvent tank and a purging fan;
a steam pipe and an exhaust pipe are arranged at the upper end of the adsorption unit, and a buffer tank is fixedly arranged on one side of the adsorption unit; the adsorption unit comprises a first adsorption unit and a second adsorption unit, the first adsorption unit is connected with the buffer tank through a first air inlet pipe, the second adsorption unit is connected with the buffer tank through a second air inlet pipe, electromagnetic valves are arranged on the first air inlet pipe and the second air inlet pipe, an air inlet fan is arranged on the first air inlet pipe, an air inlet, an air outlet, a steam inlet and a resolving port are arranged on the first adsorption unit and the second adsorption unit, the steam pipe is connected with the adsorption unit through the steam inlet, the resolving port is connected with a pipe array condenser, and the pipe array condenser and a gas-liquid separator, a spiral plate condenser, a layering tank and a solvent tank are sequentially connected;
the blowing fan and the adsorption unit are connected through a drying air pipe, and the adsorption unit is sequentially connected with a fin condenser and a buffer tank through the drying air pipe.
Preferably, the adsorption recovery device for efficiently treating organic waste gas, wherein the inner cavity of the buffer tank is provided with a baffle plate and a filter layer; the filter layer is arranged above the baffle plate.
Preferably, the adsorption recovery device for efficiently treating organic waste gas comprises a baffle plate and a filter layer which are arranged in the middle section of the inner cavity of the buffer tank, wherein the baffle plate is formed by arranging two semicircular steel plates in a parallel and crossed manner.
Preferably, the adsorption recovery device for efficiently treating organic waste gas, wherein a concentration detector is arranged on the exhaust pipe.
Preferably, the adsorption recovery device for efficiently treating organic waste gas comprises 2 adsorbers in the first adsorption unit.
Preferably, the adsorption recovery device for efficiently treating organic waste gas comprises 2 adsorbers in the second adsorption unit.
Has the advantages that:
(1) the utility model provides an efficient handling organic waste gas's absorption recovery unit makes organic industrial waste gas purification more abundant, realizes stable discharge to reach standard, and organic matter clearance > 99%'s technological effect in the realization industrial waste gas, the waste gas after the processing lasts discharge to reach standard, and it is abundant to purify waste gas, the organic matter rate of recovery is high.
(2) The utility model provides a buffer tank, non-woven fabrics filtering material is installed in inside tiling, can filter the solid particle thing impurity in the waste gas, and the adsorption material in the protection adsorber does not receive the pollution, ensures adsorption material's performance and life.
(3) The utility model provides a buffer tank, internally mounted has the baffling board, can will assemble stranded air current intensive mixing, balanced air pressure in the buffer tank, makes the atmospheric pressure fluctuation range who gets into in waste gas draught fan and the adsorber stable, ensures the adsorption process steady operation.
(4) The utility model discloses in there be two sets of absorption units, two adsorbers in every absorption unit switch in turn, and circulation, two sets of absorption units can realize the two-stage adsorption effect, and waste gas gets into the second group after first group absorption unit one-level adsorbs the purification of adsorbing the unit once more, guarantees that the organic matter in the waste gas fully separates the recovery, and the emission up to standard after the purification.
(5) The utility model provides a condensation recovery section adopts two-stage condensation technology, and the tubulation condenser is the gas-liquid mixing phase with the gas-vapour mixing phase condensation, and the spiral plate condenser is with the oil water mixing phase condensation to normal atmospheric temperature, makes the oil phase solvent reduce as far as possible and volatilize abundant recovery.
(6) The utility model discloses in sweep adsorbing material's natural wind, can bring out a large amount of steam that contains a small amount of organic matters sweeping the in-process, with it through the cooling of fin condenser after converge the buffer tank and circulate and adsorb in the adsorber, avoided directly discharging in the atmosphere influence discharge to reach standard, make the organic matter in the waste gas obtain fully purifying the recovery simultaneously.
(7) The utility model provides a fin condenser can reduce the temperature of air mixture flow in the buffer tank to the normal atmospheric temperature with getting into the circulating air current cooling that sweeps of buffer tank, has ensured the best performance environment of adsorbing material after the air mixture flow gets into the adsorber, makes the waste gas that contains the organic matter fully obtain high-efficient purification.
(8) The utility model discloses well exhaust port discharge up to standard on the waste gas after the adsorption purification passes through the adsorber, install organic matter concentration detection instrument at the discharge port, can real-time detection discharge whether up to standard the organic matter in the waste gas, concentration detection appearance and P L C control system interlock, the running state of system automatic switch-over adsorber when concentration is not up to standard, the adsorber that will be in the adsorption state switches into the desorption state, another group's adsorber gets into the adsorption state, ensure that waste gas obtains fully purifying discharge up to standard.
(9) The utility model discloses well P L C control system can be according to setting parameter automatic control and the running state of monitoring whole exhaust treatment device, install the pressure sensor on the steam admission pipe, install differential pressure transmitter on the buffer tank, install temperature sensor and the pressure sensor homoenergetic on the adsorber real-time supervision pressure and temperature, and feed back to P L C control system, corresponding valve aperture of system automatically regulated when pressure or temperature are unusual, the valve on-off state, the motor frequency of waste gas draught fan, ensure with pressure and temperature regulation normal range, when pressure or temperature are unusual to the risk value that sets up, whole device can automatic shutdown and cut off the valve on the pipeline with production system connection, open urgent discharge port simultaneously, ensure the safety and stability of exhaust treatment device and production system.
Drawings
Fig. 1 is the structure schematic diagram of the adsorption recovery device for efficiently treating organic waste gas in the utility model.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The process comprises that waste gas generated in production is collected through a waste gas pipe and then is connected into a buffer tank A, the waste gas enters from a waste gas inlet 1 of the buffer tank, is fully mixed and buffers the gas flow pressure through a baffle plate 6 in the buffer tank, penetrates through a filter layer 5 in the buffer tank to filter solid particulate matter impurities and water vapor, and is discharged from a gas outlet 2 of the buffer tank, the waste gas is introduced into an adsorption device through a waste gas draught fan B, the adsorption device comprises a first adsorption unit and a second adsorption unit, the first adsorption unit and the second adsorption unit both comprise two adsorbers, under the control of a P L C system program, the adsorption time of each adsorber is desorption time plus purge time, so that one adsorber at any time in each adsorption unit is in an adsorption state, the other adsorber is in a desorption state and a purge state, the two adsorbers alternately switch to operate, desorb plus purge process, the waste gas enters from a gas inlet C or an air inlet C in the second adsorption unit after primary adsorption adsorber, enters a secondary adsorption adsorber C, the adsorption process, the adsorption adsorber C is performed, the waste gas enters a secondary adsorption adsorber, the adsorption process of the adsorption adsorber, the adsorption adsorber C is performed, the adsorption process of the adsorption and the adsorption process of the adsorption, the adsorption of the adsorption, the waste gas enters a secondary adsorption of the adsorption adsorber, the air.
The utility model discloses a P L C autonomous system imports and exports the valve switching to each component of whole device, the fan frequency, the process switching, safety protection sets for automatic control according to the procedure, and combine concentration detection appearance, pressure sensor, instrument realization interlocking regulation and control such as temperature sensor, make adsorption equipment stable, circulation operation safely, make waste gas constantly obtain purifying discharge to reach standard in succession, the organic matter can fully be retrieved, when pressure or temperature are unusual to the risk value that sets up, whole device can automatic shutdown and cut off with the production system on the pipeline, open urgent discharge port simultaneously, ensure the safety and stability of exhaust treatment device and production system, realize industrial organic waste gas high-efficiency processing.
The utility model discloses a buffer tank structure contains jar body, waste gas outlet, filter layer, baffling board, sweeps wind circulation air inlet, waste gas air inlet, noncondensable gas air inlet, and the interlude at the buffer tank inner chamber is installed to filtering material layer and baffling board, and the filter layer is on the baffling board, and filtering material is the fine and close filtering material of the high ventilation rate of resistant solvent, and the baffling board is two semicircle steel sheet parallel cross-arrangement.
The adsorption device is formed by serially connecting two groups of adsorption units, each group of adsorption units is provided with two adsorbers which are connected in parallel, the total number of the adsorbers is four, each adsorber is provided with a waste gas inlet, a purified gas outlet, a steam inlet, an analysis port, a purging air inlet, a purging air outlet and a liquid outlet, and the inlet and the outlet of each adsorber are provided with pneumatic valves.
The adsorption device has the following connection relationship between the inlet and the outlet of each adsorber: the adsorber waste gas air inlet in the first group of adsorption units is connected with the outlet of a waste gas induced draft fan, and the purified gas outlet is connected with the adsorber waste gas air inlet in the second group of adsorption units. The exhaust port of the purifier of the adsorber in the second group of adsorption units is connected with an emptying pipe, and an organic matter concentration monitoring instrument is installed at the tail section of the emptying pipe. Steam inlets of the four adsorbers are connected with a steam pipe, resolving ports are connected with air inlets of the tube array condensers, purging air inlets are connected with air outlets of the blower, purging air outlets are connected with air inlets of the fin condensers, and liquid outlets are connected with liquid inlets of the layering grooves.
The purging and regenerating circulating device comprises a purging fan and a fin condenser, wherein a natural air inlet of the purging fan is connected with the natural air, an air outlet of the purging fan is connected with a purging air inlet of the adsorber, an air inlet of the fin cold energy device is connected with a purging exhaust port of the adsorber, and an air outlet of the fin condenser is connected with a purging air circulating air inlet of the buffer tank.
Toluene tail gas volatilized from a raw material storage tank and a reaction kettle in the production process of a certain epoxy resin factory passes throughThe air pipes are collected and sent to a waste gas treatment device. The concentration of total toluene in tail gas is 2000-20000 PPM, and the total air volume is 5000M3The utility model discloses an adsorption and recovery device, exhaust treatment device technology adopts the utility model discloses an adsorption and recovery device, its technology composition contains gas collecting device, adsorption equipment, cooling recovery device, sweep regeneration cycle device, as shown in figure 1, its major structure composition contains buffer tank A, waste gas draught fan B, adsorber (C, D, E, F), sweep fan N, tubulation condenser G, spiral plate condenser I, vapour and liquid separator H, layering groove J, solvent tank K, fin condenser L. the bold solid line of area arrow in the figure, the dotted line of area arrow, the thin solid line of area arrow shows respectively that waste gas adsorbs, desorption is retrieved, sweep regeneration cycle process's flow route
The exhaust emission concentration of the treated exhaust gas in the embodiment is less than 4ppm, and the removal rate of the toluene component is more than 99%, so that the exhaust emission standard is reached. The exhaust port and the periphery of the waste gas treatment system have no water vapor and no odor.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (6)
1. An adsorption recovery device for efficiently treating organic waste gas is characterized by comprising a buffer tank, an adsorption unit, an air inlet fan, a tube array condenser, a gas-liquid separator, a spiral plate condenser, a layering tank, a solvent tank and a purging fan;
a steam pipe and an exhaust pipe are arranged at the upper end of the adsorption unit, and a buffer tank is fixedly arranged on one side of the adsorption unit; the adsorption unit comprises a first adsorption unit and a second adsorption unit, the first adsorption unit is connected with the buffer tank through a first air inlet pipe, the second adsorption unit is connected with the buffer tank through a second air inlet pipe, electromagnetic valves are arranged on the first air inlet pipe and the second air inlet pipe, an air inlet fan is arranged on the first air inlet pipe, an air inlet, an air outlet, a steam inlet and a resolving port are arranged on the first adsorption unit and the second adsorption unit, the steam pipe is connected with the adsorption unit through the steam inlet, the resolving port is connected with a pipe array condenser, and the pipe array condenser and a gas-liquid separator, a spiral plate condenser, a layering tank and a solvent tank are sequentially connected;
the blowing fan and the adsorption unit are connected through a drying air pipe, and the adsorption unit is sequentially connected with a fin condenser and a buffer tank through the drying air pipe.
2. The adsorption recovery device for efficiently treating organic waste gas according to claim 1, wherein the inner cavity of the buffer tank is provided with a baffle plate and a filter layer; the filter layer is arranged above the baffle plate.
3. The adsorption recovery device for high-efficiency treatment of organic waste gas as claimed in claim 2, wherein the baffle plate and the filter layer are arranged in the middle section of the inner cavity of the buffer tank, and the baffle plate is formed by arranging two semicircular steel plates in a parallel and crossed manner.
4. The adsorption recovery device for high efficiency treatment of organic waste gas according to claim 1, wherein the exhaust pipe is provided with a concentration detector.
5. The adsorption recovery device for high efficiency treatment of organic waste gas according to claim 1, wherein the first adsorption unit comprises 2 adsorbers.
6. The adsorption recovery device for high efficiency treatment of organic waste gas according to claim 1, wherein the second adsorption unit comprises 2 adsorbers.
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| CN201921494915.7U CN211098267U (en) | 2019-09-09 | 2019-09-09 | Adsorption recovery device for efficiently treating organic waste gas |
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| CN201921494915.7U CN211098267U (en) | 2019-09-09 | 2019-09-09 | Adsorption recovery device for efficiently treating organic waste gas |
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| CN211098267U true CN211098267U (en) | 2020-07-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858576A (en) * | 2021-11-04 | 2021-12-31 | 辽宁北方华锦五洲化工工程设计有限公司 | Devolatilization recovery method and recovery system of ABS extruder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858576A (en) * | 2021-11-04 | 2021-12-31 | 辽宁北方华锦五洲化工工程设计有限公司 | Devolatilization recovery method and recovery system of ABS extruder |
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