CN210645846U - Double-layer type waste gas treatment system based on emission concentration monitoring - Google Patents
Double-layer type waste gas treatment system based on emission concentration monitoring Download PDFInfo
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- CN210645846U CN210645846U CN201921407692.6U CN201921407692U CN210645846U CN 210645846 U CN210645846 U CN 210645846U CN 201921407692 U CN201921407692 U CN 201921407692U CN 210645846 U CN210645846 U CN 210645846U
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Abstract
A double-layer waste gas treatment system based on emission concentration monitoring is characterized in that a layered partition is transversely arranged in the center of the height of a treatment device and divides the treatment device into a first chamber and a second chamber; the spray tower penetrates through the layered partition and is connected with the upper end and the lower end of the treatment device, the first tower body is attached to the first partition plate, a first communicating port is formed in the first partition plate in a penetrating mode, and the first communicating port and the first air outlet are located at the same axial height; the second tower body is attached to the second blocking plate, a second communicating port penetrates through the second blocking plate, and the second communicating port and the second air outlet are located at the same axial height; the spraying device is arranged at the top of the spraying tower; the outlet of the exhaust port is provided with a concentration detection device, the first end of the layered partition is provided with a through hole through the opening, the spray tower rotates in the processing device along the axial direction, and the rotating speed of the spray tower is in inverse proportion to the concentration detected by the concentration detection device. The utility model discloses reduce the use amount of absorption liquid to improve the absorption rate to waste gas.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, the utility model particularly relates to a two-layer equation exhaust-gas treatment system based on emission concentration monitoring.
Background
Atmospheric pollution is one of the most prominent environmental problems in the world at present, the main source of pollutants is industrial waste gas, the types of the generated pollutants are different due to different production processes of the industrial waste gas, and different treatment processes should be adopted for different types of pollutants.
In order to reduce or eliminate the influence of waste gas on the environment, industrial enterprises absorb the waste gas through various measures at present, and the catalytic absorption treatment through an absorption liquid is a common method, but the absorption and catalysis method for the waste gas needs a large amount of absorption liquid for support, so that the cost is high, and the cost of the enterprises for treating the waste water is increased along with the increase of the waste water. The cost of purification treatment through a sewage treatment plant is about 10 yuan per ton, the cost of sewage after repurchase treatment is about 7 yuan per ton, if the using amount of absorption liquid is increased, the yield of waste water is inevitably increased, and the business cost of enterprises is increased invisibly.
SUMMERY OF THE UTILITY MODEL
To the problem and the actual demand that above-mentioned prior art exists, the utility model aims to provide a two-layer equation exhaust-gas treatment system based on emission concentration monitoring divide into upper and lower two-stage with processing system, and subordinate's system utilizes the processing recovery liquid of higher level's system to spray, reduces the use amount of absorption liquid, increases the processing stroke of waste gas simultaneously, improves the absorption rate to waste gas.
In order to solve the above problem, the utility model discloses a two-layer equation exhaust-gas treatment system based on emission concentration monitoring, include:
the processing device is of a hollow structure, a layered partition is transversely arranged at the center of the height of the processing device, and the processing device is divided into a first chamber and a second chamber;
the spray tower is of a vertical hollow tower body structure, penetrates through the layered partition and is connected with the upper end and the lower end of the treatment device, a first spray plate is transversely arranged in the height center of the spray tower to divide the spray tower into a first tower body in the first cavity and a second tower body in the second cavity, and a liquid seal layer is arranged on the first spray plate; the first tower body is provided with a first air inlet and a first air outlet at intervals, and the first air inlet and the first air outlet are staggered at a certain angle in the radial direction; a second air inlet and a second air outlet are formed in the second tower body at intervals, the second air inlet and the first air outlet are positioned on the same axis, and the second air outlet and the first air inlet are positioned on the same axis;
the first blocking plate is longitudinally and hermetically arranged in the first chamber, the first blocking plate is positioned on the first side of the spray tower, the first tower body is attached to the first blocking plate, a first communicating port is formed in the first blocking plate in a penetrating mode, and the first communicating port and the first air outlet are positioned at the same axial height;
the second blocking plate is longitudinally and hermetically arranged in the second chamber, the second blocking plate is positioned on the second side of the spray tower, the second tower body is attached to the second blocking plate, a second communicating port is formed in the second blocking plate in a penetrating mode, and the second communicating port and the second air outlet are positioned at the same axial height; and
the spraying device is arranged at the top of the spraying tower;
the processing device comprises a first cavity, a second cavity, a first end, a second end, a spraying tower, a concentration detection device, a first end through opening, a second end, a third end, a fourth end, a fifth end, a sixth.
Preferably, a plurality of first blocking plates are arranged in the first chamber at intervals, the first chamber is divided into a plurality of first closed cavities, the first closed cavities are communicated with one another through the first communication port, and the input port is communicated with a first closed cavity; and be provided with on the first baffling board with spray column complex first cavity, first tower body laminating is in rotate in the first cavity.
Preferably, a plurality of second blocking plates are arranged in the second chamber at intervals, the second chamber is divided into a plurality of second closed cavities, the second closed cavities are communicated with each other through the second communication ports, the first closed cavity on the first side is communicated with the second closed cavity through the through port, and the exhaust port is communicated with the last second closed cavity; and a second cavity matched with the spray tower is arranged on the second barrier plate, the second tower body is attached to and rotates in the second cavity, and radians of the cavities distributed in the radial direction are not less than 30 degrees.
Preferably, a plurality of first through holes are formed in the layered partition at intervals, a plurality of second through holes are formed in the bottom of the treatment device at intervals, a plurality of third through holes are formed in the top of the treatment device at intervals, the first through holes, the second through holes and the third through holes are located on the same longitudinal axis, and the spray tower penetrates through the first through holes.
Preferably, the outer side of the center of the spray tower is rotatably arranged in the first through hole through a first bearing, the bottom of the spray tower is rotatably arranged in the second through hole through a second bearing, and the top of the spray tower is rotatably arranged in the third through hole through a third bearing.
Preferably, a plurality of motors are installed at the bottom of the treatment device, the bottom of the spraying tower is of a closed structure and is led out downwards from the second through hole, the leading-out end at the bottom of the spraying tower is in driving connection with the motors, and the motors rotate synchronously.
Preferably, the top of the spray tower is of an open structure, a second spray plate is arranged in an opening in the top of the spray tower, the spray device is hermetically installed at the top of the spray tower and comprises a delivery pump and a liquid storage device, one end of the delivery pump is communicated with the absorption liquid storage pool, the other end of the delivery pump is communicated with the liquid storage device, the output end of the liquid storage device is located at the upper end of the second spray plate, and a liquid seal layer is arranged in the liquid storage device.
Preferably, the bottom of the first tower body is a contracting conical surface, the bottom of the conical surface is rotated in the second through hole, a plurality of first liquid discharge ports are formed in the periphery of the lower end of the conical surface in a penetrating mode, a second liquid discharge port is formed in the bottom of the first barrier plate in a penetrating mode, the first liquid discharge ports correspond to the second liquid discharge ports in position, a ring body is arranged on the bottom of the first cavity in the periphery of the second through hole in a protruding mode, the top of the ring body is higher than the top of the second liquid discharge port, and a waste liquid pool is arranged at the bottom of the treatment device.
Preferably, each the baffler top sets up to circumference closed loop structure, first tower body and second tower body top rotate to be set up among the circumference closed loop structure, just first intercommunication mouth and second intercommunication mouth run through to be seted up on the circumference closed loop structure, each the opening radian of intercommunication mouth is between 30 to 60, each the radial distribution radian of cavity is 180.
Preferably, the first air inlet is arranged on the conical surface, the first air outlet is arranged on the side wall of the top of the first tower body, the first air inlet and the first air outlet have a radial phase difference of 180 degrees, the second air inlet is arranged on the side wall of the bottom of the second tower body, and the second air outlet is arranged on the side wall of the top of the second tower body.
The utility model has the advantages as follows:
1. the utility model discloses a carry out configuration improvement and layout optimization to processing system, specifically divide into upper and lower two-stage with processing system, subordinate's system utilizes the processing recovery liquid of higher level's system to spray, retrieves the reutilization with the primary absorption liquid of higher concentration, has promoted the rate of utilization of absorption liquid and to the absorption rate of waste gas, effectively reduces the use amount of absorption liquid and treatment cost simultaneously;
2. waste gas is retained in the two-stage absorption system and reacts with absorption liquid for absorption, so that the treatment stroke of the waste gas is increased, and the absorption rate of the waste gas is improved;
3. the rotating speed of the spray towers is controlled by detecting the concentration of the waste gas at the discharge port, and when the concentration of the waste gas is higher, the rotating speed of the spray towers is reduced, the processing time of the waste gas in each spray tower is prolonged, and finally the concentration of the waste gas at the discharge port is reduced;
4. the rotary spray tower effectively throws away the sediment accumulated on the inner peripheral wall thereof, thereby avoiding the reaction by-products of the absorption liquid and the waste gas from accumulating on the inner peripheral wall of the spray tower to influence the normal operation of the equipment.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of the overall structure of the treatment apparatus of the present invention;
FIG. 2 is a schematic view of the installation structure of the spray tower;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic diagram of the internal structure of the first chamber;
fig. 5 is a schematic view of the internal structure of the second chamber.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Examples
As shown in fig. 1-3, the utility model provides a two-layer equation exhaust-gas treatment system based on emission concentration monitoring, including processing apparatus 100, spray column 400, first baffler 310, second baffler 320 and spray set, spray in rotating spray column 400 through spray set, hierarchical processing about waste gas carries out in spray column 400, promotes the absorption efficiency to waste gas, reduces the use amount of absorption liquid through the reuse to absorption liquid simultaneously, reduces use cost and aftertreatment cost.
Example one
The processing device 100 is a hollow structure, a layered partition 110 is transversely arranged at the center of the height of the processing device 100 to divide the processing device 100 into a first chamber 101 and a second chamber 102, and a through hole 112 penetrates through the first end of the layered partition 110 to communicate the first chamber 101 with the second chamber 102 at the first end.
The utility model discloses in, spray tower 400 rotates along the axial in processing apparatus 100, in order to realize the rotation of spray tower 400 a plurality of motors 500 are installed to processing apparatus 100 bottom, rotate through the whole spray tower 400 of motor 500 drive. In order to match the rotation of the spray tower 400, the central outer side of the spray tower 400 is rotatably arranged in the first through hole 113 through the first bearing 111, the bottom of the spray tower 400 is rotatably arranged in the second through hole 290 through the second bearing 250, and the top of the spray tower 400 is rotatably arranged in the third through hole 280 through the third bearing 240, so that the spray tower 400 is stably rotated in the processing device 100. The rotary spray tower effectively throws away the sediment accumulated on the inner peripheral wall thereof, thereby avoiding the reaction by-products of the absorption liquid and the waste gas from accumulating on the inner peripheral wall of the spray tower to influence the normal operation of the equipment.
The bottom of the spray tower 400 is a closed structure and is led out downwards from the second through hole 290, and the leading-out end at the bottom of the spray tower 400 is in driving connection with the motor 500, so that the spray tower 400 is driven to rotate, and meanwhile, each motor 500 synchronously rotates, so that each spray tower 400 keeps synchronously rotating.
The height center of the spray tower 400 is transversely provided with a first spray plate 450, the periphery of the first spray plate 450 is hermetically arranged on the inner peripheral wall of the spray tower 400, in the embodiment, the first spray plate 450 is arranged on the same horizontal position with the layered partition 110, the spray tower 400 is divided into a first tower body in the first cavity 101 and a second tower body in the second cavity 102, and absorption liquid after the spray reaction in the second tower body from top to bottom is sprayed downwards into the first tower body through the first spray plate 450.
Meanwhile, a liquid seal layer is arranged on the first spray plate 450, so that gas in the first tower body and gas in the second tower body are prevented from communicating; specifically, a flow dividing plate 460 is disposed on the first spray plate 450, the bottom of the flow dividing plate 460 is spaced and erected on the first spray plate 450 through a bracket 462, the periphery of the first spray plate 450 is spaced from the inner peripheral wall of the spray tower 400 by a certain distance, so that the absorption liquid in the second tower body can seep downward, a first flow limiting ring body 451 is protruded from the top periphery of the first spray plate 450, a second flow limiting ring body 461 is protruded from the bottom periphery of the flow dividing plate 460, the second flow limiting ring body 461 is staggered and disposed on the periphery of the first flow limiting ring body 451, when the absorption liquid processed by the second tower body is concentrated on the top of the first spray plate 450, the absorption liquid is preferentially concentrated between the first flow limiting ring body 451 and the inner peripheral wall of the spray tower 400, when the concentrated liquid level exceeds the height of the first flow limiting ring body 451, the absorption liquid can flow into the upper end of the first spray plate 450 and spray downward into the first tower body, and the concentrated absorption liquid can form a flow limiting ring body between the second flow limiting ring body 461 staggered and the first flow limiting ring body And a liquid seal for preventing gas interaction between the first tower body and the second tower body.
In this embodiment, the bottom of the first tower body is provided with a contracting conical surface 410, the bottom of the conical surface 410 rotates in the second through hole 290, the periphery of the lower end of the conical surface 410 is provided with a plurality of first liquid discharge ports 412 in a penetrating manner, the bottom of the first chamber 101 at the periphery of the second through hole 290 is provided with a ring body 260 in a protruding manner, the top of the ring body 260 is higher than the top of the first liquid discharge ports 412, when absorption liquid treated by the first tower body is discharged outwards through the first liquid discharge ports 412 formed at the bottom, the absorption liquid is firstly collected in a cavity formed by the ring body 260, and the first liquid discharge ports 412 are lower than the ring body 260, so that a liquid seal is formed, and gas in the first tower body is prevented from overflowing from the first liquid discharge ports 412. The bottom of the treatment device 100 is provided with a waste liquid tank 270, absorption liquid discharged from the bottom of the first tower body is collected in the waste liquid tank 270, waste liquid is conveyed outwards from the bottom of the waste liquid tank 270, and gas in the first chamber 101 is prevented from leaking outwards from the waste liquid tank 270.
In the above technical solution, the first tower body is provided with a first air inlet 411 and a first air outlet 420 at intervals, and the first air inlet 411 and the first air outlet 420 are staggered by a certain angle in the radial direction; correspondingly, a second air inlet 430 and a second air outlet 440 are formed in the second tower body at intervals, the second air inlet 430 and the first air outlet 420 are located on the same axis, and the second air outlet 440 and the first air inlet 411 are located on the same axis.
In this embodiment, first air inlet 411 is seted up on conical surface 410, first gas outlet 420 is seted up on the first tower body top lateral wall, just first air inlet 411 and first gas outlet 420 radially differ 180, second air inlet 430 is seted up on the second tower body bottom lateral wall, second gas outlet 440 is seted up on the second tower body top lateral wall, again because second air inlet 430 with first gas outlet 420 is in the same axis, second gas outlet 440 with first air inlet 411 is in the same axis, and each spray tower 400 synchronous revolution of each motor 500 drive, and from this, each air inlet syntropy rotates, and each gas outlet syntropy rotates, and air inlet and gas outlet are radially staggered 180 throughout.
In the above technical solution, the interval is provided with a plurality of first baffling boards 310 in the first chamber 101, and first baffling board 310 vertically seals and sets up in first chamber 101, will first chamber 101 divides into a plurality of first airtight cavitys, just first baffling board 310 is located the first side of spray tower 400, namely the right side in the picture that shows, first tower body laminating is in on the first baffling board 310, first intercommunication opening 311 has been run through at first baffling board 310 top, first intercommunication opening 311 with first gas outlet 420 is in same axial height, along with spray tower 400 rotates, first intercommunication opening 311 with first gas outlet 420 selectively link up.
Each first closed cavity is communicated with each other through the first communication port 311, along with the rotation of the spray tower 400, the first communication port 311 is communicated with the first gas outlet 420, gas in the last first tower body sequentially enters the second first closed cavity through the first gas outlet 420 and the first communication port 311, then enters the second first tower body through the first gas inlet 411, and so on, and gas in the first chamber 101 flows through the first tower body one by one from left to right to be absorbed.
An input port 120 is formed in the second side wall of the first chamber 101, the input port 120 is communicated with the first closed cavity, waste gas is discharged into the first closed cavity, the waste gas sequentially flows through the first tower bodies from bottom to top along with the rotation of the spray towers 400, the waste gas is sprayed and absorbed in the first tower bodies, and finally the waste gas enters the second chamber 102 through the through hole 112.
Meanwhile, the bottom of the first blocking plate 310 is provided with a second liquid outlet 312 in a penetrating manner, the first liquid outlet 412 corresponds to the second liquid outlet 312 in position, along with the rotation of the tower body, the first liquid outlet 412 is communicated with the second liquid outlet 312, and waste liquid accumulated at the bottom of the first tower body sequentially flows through the first liquid outlet 412 and the second liquid outlet 312 and is discharged to the waste liquid tank 270.
Similar to the first blocking plate 310, a plurality of second blocking plates 320 are arranged at intervals in the second chamber 102, the second blocking plates 320 are longitudinally and hermetically arranged in the second chamber 102, the second chamber 102 is divided into a plurality of second closed cavities, the second blocking plates 320 are located on the second side of the spray tower 400, namely, on the left side in the drawing, the second tower body is attached to the second blocking plates 320, second communicating ports 321 are formed in the second blocking plates 320 in a penetrating manner, the second communicating ports 321 and the second air outlets 440 are located at the same axial height, and as the spray tower 400 rotates, the second communicating ports 321 and the second air outlets 440 are selectively communicated.
The second closed cavities are communicated with each other through the second communication port 321, the second communication port 321 is communicated with the second gas outlet 440 along with the rotation of the spray tower 400, gas in the previous second tower body sequentially enters the second closed cavity through the second gas outlet 440 and the second communication port 321, then enters the second tower body through the second gas inlet 430, and so on, and the gas in the second chamber 102 flows through the second tower body one by one from right to left to perform absorption treatment.
An air outlet 130 is formed in a second side wall of the second chamber 102, and the air outlet 130 is communicated with the last second closed cavity to discharge the treated waste gas outwards. The waste gas treated by each first tower body in the first chamber 101 enters the rightmost second closed cavity through the through hole 112, and as each spray tower 400 rotates, the waste gas flows through each second tower body from bottom to top in sequence, is sprayed and absorbed in the second tower bodies, and is finally discharged through the exhaust port 130.
In the above technical solution, in order to cooperate with the rotation of the spray tower 400, the first blocking plate 310 is provided with a first cavity 313 cooperating with the spray tower 400, and the first tower body is attached to and rotates in the first cavity 313. Correspondingly, a second cavity 322 matched with the spray tower 400 is arranged on the second blocking plate 320, the second tower body is attached to and rotates in the second cavity 322, and radians of the cavities distributed in the radial direction are not less than 30 degrees. The concave cavity is provided with a first function of stabilizing the rotation of the spray tower 400, a second function of blocking each air inlet for a certain time in the rotation process of the spray tower 400, realizing the selective air inlet of each tower body, and in the open process of the air inlet, each air outlet is selectively aligned with the communication port at the position for a certain time, so as to realize synchronous air inlet and air outlet, ensuring that the gas can only enter the tower body from the air inlet at the bottom, the tower body flows out from the air outlet at the top, the whole tower body of the gas flow is sprayed, and meanwhile, the residence time of the gas in the tower body can be controlled by controlling the rotating speed of the spray tower 400, and the concentration of harmful gas in the finally discharged gas is sequentially adjusted.
In this embodiment, a concentration detection device is disposed at the exhaust port 130 for real-time monitoring of the concentration of the harmful gas in the exhaust gas, the rotation speed of the spray tower 400 is inversely proportional to the concentration detected by the concentration detection device, and the concentration detection device only applies its conventional concentration detection function and has no special requirements for model parameters and the like. Specifically, when the concentration of the harmful gas is too high, the rotating speed of the spray tower 400 is reduced, the retention and spraying time of the gas in the tower body is prolonged, the reaction absorption rate is improved, and the concentration of the harmful gas in the discharged gas is reduced in sequence; on the contrary, on the premise of ensuring that the concentration index of harmful gas in the exhaust gas meets the exhaust condition, the rotating speed of the spray tower 400 can be properly increased to improve the treatment efficiency of the treatment system.
In this embodiment, the tops of the blocking plates are arranged to be in a circumferential closed-loop structure, as shown in the figure, the upper end of the first blocking plate 310 is provided with a circumferential closed-loop structure 314, the upper end of the second blocking plate 320 is provided with a circumferential closed-loop structure 323, the tops of the first tower body and the second tower body are rotatably arranged in the circumferential closed-loop structure, the first communicating port 311 and the second communicating port 321 are arranged on the circumferential closed-loop structure in a penetrating manner, the opening radian of each communicating port is between 30 ° and 60 °, that is, in the rotating process of the spray tower 400, when the communicating port at the position of the gas outlet and the communicating port at the position has a 30 ° communicating area on the circumference at each time, in this area, the gas in the internal gas tower can be output outwards through the gas outlet and the communicating ports, and when the other areas of the spray tower 400 rotate, the gas outlet is.
Simultaneously, each the radial distribution radian of cavity is 180, and the open area that is exactly the air inlet is 180, because air inlet and gas outlet are 180 setting of staggering in the footpath, at spray tower 400 rotation in-process, when the air inlet passes through the 180 regional in-process that admits air of cavity outside, the intercommunication mouth that the gas outlet and position department have 30 intercommunication regions, at this 30 intercommunication regional in-process, gas gets into the tower body bottom from the air inlet, and the gas in the tower is outwards discharged from the gas outlet at top, is equivalent to taking a breath in the tower, and the gas after taking a breath gets into next stage of tower body or final outwards discharges. When the gas outlet is not positioned in a communication area with the communication port at the position of 30 degrees, the gas in the tower body is kept constant and is retained in the tower for spraying treatment until the gas outlet is aligned with the communication port.
In the above technical solution, the spraying device is disposed at the top of the spraying tower 400, the top of the spraying tower 400 is an open structure, the second spraying plate 230 is disposed in an opening at the top of the spraying tower 400, the spraying device is hermetically mounted at the top of the spraying tower 400, the spraying device includes a delivery pump 210 and a liquid reservoir 220, one end of the delivery pump 210 is communicated with the absorption liquid storage pool, the other end of the delivery pump 210 is communicated with the liquid reservoir 220, the output end of the liquid reservoir 220 is located at the upper end of the second spraying plate 230 and is sprayed into the second tower, the delivery pump 210 pumps the absorption liquid into the liquid reservoir 220, a liquid seal layer is formed in the liquid reservoir 220, and gas in the tower is prevented from leaking out from the top of the spraying tower 400.
Because the gas in the second tower body is processed by the first tower body, the gas concentration in the second tower body is relatively low, and the absorption liquid passing through the second tower body has higher concentration and can be reused. In order to gather the absorption liquid passing through the second tower body at the bottom of the second tower body, the absorption liquid is sprayed into the first tower body through the first spraying plate 450, so that the absorption liquid with higher concentration passing through the second tower body is repeatedly sprayed and used by the first tower body, the repeated utilization rate of the absorption liquid is improved, and the use amount of the absorption liquid is reduced.
The working process of the whole processing system is as follows:
industrial waste gas enters the first closed cavity on the left side from the input port 120, along with the rotation of the spray tower 400, when the first gas outlet 420 is communicated with the first communication port 311 in a 30-degree region, gas in the first closed cavity enters the first tower through the first gas inlet 411, along with the continuous rotation of the spray tower 400, the first gas outlet 420 is staggered with the first communication port 311, the first gas outlet 420 is closed by the circumferential closed-loop structure 314, the gas is subjected to primary spray treatment on the gas by using secondary absorption liquid after being sprayed and used by the second tower body in the first tower body until the first gas outlet 420 is communicated with the first communication port 311 again, the gas in the first tower body is replaced to flow into the second first closed cavity, and so on, the gas subjected to spray treatment by the plurality of first tower bodies finally enters the first second closed cavity on the rightmost side, with the rotation of the spray tower 400, until the second gas outlet 440 is in the 30 ° region communicated with the second communication port 321, the gas in the second closed cavity enters the first second tower through the second gas inlet 430, with the continuous rotation of the spray tower 400, the second gas outlet 440 is staggered from the second communication port 321, the second gas outlet 440 is closed by the circumferential closed-loop structure 323, the gas is subjected to secondary spray treatment in the second tower by the primary absorption liquid conveyed by the spray device until the second gas outlet 440 is communicated with the second communication port 321 again, the gas in the second tower is replaced to flow into the second closed cavity, and so on until being discharged outside by the gas outlet 130.
Each spray tower 400 rotates synchronously in the same direction, and each tower body synchronously performs air inlet and outlet processes, namely each tower body synchronously performs an air exchange process so as to keep the normal fluidity and the air pressure stability of the gas in the treatment device. Gas is through the once spraying processing of a plurality of first tower bodies, and the back, the twice spraying processing of a plurality of second tower bodies again improves the treatment effeciency to gas to harmful gas and absorption liquid's reaction rate has been improved, the concentration of airing exhaust is reduced. Meanwhile, the first tower body uses the absorption liquid with higher concentration after the second tower body is used, the absorption liquid is fully reused, the using amount of the absorption liquid and the discharge amount of waste liquid are reduced, and the using cost and the post-treatment cost are reduced.
In the process, the concentration of harmful gas in the discharged gas is monitored in real time through a concentration detection device, when the concentration of the harmful gas is too high, the rotating speed of the spray tower 400 is reduced, the processing speed is slowed down, the retention and spraying time of the gas in the tower body is prolonged, the reaction absorption rate is improved, and the concentration of the harmful gas in the discharged gas is reduced in sequence; on the contrary, on the premise of ensuring that the concentration index of harmful gas in the exhaust gas meets the exhaust condition, the rotating speed of the spray tower 400 can be properly increased to improve the treatment efficiency of the treatment system.
Example two
As shown in fig. 4 and 5, the whole processing apparatus 100 is provided with a multi-row chamber structure, that is, a plurality of groups of processing systems described in the first embodiment are distributed in the processing apparatus 100 at the same time, so as to improve the processing capacity of the whole processing system.
From the above, the utility model discloses a carry out structural improvement and layout optimization to processing system, specifically divide into upper and lower two-stage with processing system, subordinate's system utilizes the processing recovery liquid of higher level system to spray, retrieves the reutilization with the primary absorption liquid of higher concentration, has promoted the rate of utilization of absorption liquid and the absorption rate to waste gas, effectively reduces the use amount of absorption liquid and treatment cost simultaneously; waste gas is retained in the two-stage absorption system and reacts with absorption liquid for absorption, so that the treatment stroke of the waste gas is increased, and the absorption rate of the waste gas is improved; the rotating speed of the spray tower is controlled by detecting the concentration of the waste gas at the discharge port, when the concentration of the waste gas is higher, the rotating speed of the spray tower is reduced, the processing time of the waste gas in each spray tower is prolonged, the concentration of the waste gas at the discharge port is finally reduced, and the gas discharge is ensured to reach the environmental protection index.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will recognize that: various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (10)
1. A two-layer exhaust treatment system based on emission concentration monitoring, comprising:
the processing device is of a hollow structure, a layered partition is transversely arranged at the center of the height of the processing device, and the processing device is divided into a first chamber and a second chamber;
the spray tower is of a vertical hollow tower body structure, penetrates through the layered partition and is connected with the upper end and the lower end of the treatment device, a first spray plate is transversely arranged in the height center of the spray tower to divide the spray tower into a first tower body in the first cavity and a second tower body in the second cavity, and a liquid seal layer is arranged on the first spray plate; the first tower body is provided with a first air inlet and a first air outlet at intervals, and the first air inlet and the first air outlet are staggered at a certain angle in the radial direction; a second air inlet and a second air outlet are formed in the second tower body at intervals, the second air inlet and the first air outlet are positioned on the same axis, and the second air outlet and the first air inlet are positioned on the same axis;
the first blocking plate is longitudinally and hermetically arranged in the first chamber, the first blocking plate is positioned on the first side of the spray tower, the first tower body is attached to the first blocking plate, a first communicating port is formed in the first blocking plate in a penetrating mode, and the first communicating port and the first air outlet are positioned at the same axial height;
the second blocking plate is longitudinally and hermetically arranged in the second chamber, the second blocking plate is positioned on the second side of the spray tower, the second tower body is attached to the second blocking plate, a second communicating port is formed in the second blocking plate in a penetrating mode, and the second communicating port and the second air outlet are positioned at the same axial height; and
the spraying device is arranged at the top of the spraying tower;
the processing device comprises a first cavity, a second cavity, a first end, a second end, a spraying tower, a concentration detection device, a first end through opening, a second end, a third end, a fourth end, a fifth end, a sixth.
2. The dual-layer exhaust gas treatment system based on emission concentration monitoring of claim 1, wherein a plurality of first baffle plates are arranged at intervals in the first chamber, the first chamber is divided into a plurality of first closed cavities, each of the first closed cavities is communicated with each other through the first communication port, and the input port is communicated with a first closed cavity; and be provided with on the first baffling board with spray column complex first cavity, first tower body laminating is in rotate in the first cavity.
3. The dual-layer exhaust gas treatment system based on emission concentration monitoring of claim 2, wherein a plurality of second blocking plates are arranged at intervals in the second chamber, the second chamber is divided into a plurality of second closed cavities, each of the second closed cavities is communicated with each other through the second communication port, the first closed cavity and the second closed cavity on a first side are communicated through the through port, and the exhaust port is communicated with the last second closed cavity; and a second cavity matched with the spray tower is arranged on the second barrier plate, the second tower body is attached to and rotates in the second cavity, and radians of the cavities distributed in the radial direction are not less than 30 degrees.
4. The dual-layer exhaust gas treatment system based on emission concentration monitoring of claim 3, wherein the layered partition is provided with a plurality of first through holes at intervals, the bottom of the treatment device is provided with a plurality of second through holes at intervals, the top of the treatment device is provided with a plurality of third through holes at intervals, the first through holes, the second through holes and the third through holes are located on the same vertical axis, and the spray tower penetrates through the first through holes.
5. The dual-stage exhaust treatment system based on emission concentration monitoring of claim 4, wherein the outer side of the center of the spray tower is rotatably disposed in the first through hole through a first bearing, the bottom of the spray tower is rotatably disposed in the second through hole through a second bearing, and the top of the spray tower is rotatably disposed in the third through hole through a third bearing.
6. The dual-layer exhaust gas treatment system based on emission concentration monitoring as claimed in claim 5, wherein a plurality of motors are installed at the bottom of the treatment device, the bottom of the spray tower is of a closed structure and is led out downwards from the second through hole, the leading-out end at the bottom of the spray tower is in driving connection with the motors, and each motor rotates synchronously.
7. The dual-layer exhaust gas treatment system based on emission concentration monitoring as claimed in claim 6, wherein the top of the spray tower is an open structure, a second spray plate is disposed in the open top of the spray tower, the spray device is hermetically mounted on the top of the spray tower, the spray device comprises a delivery pump and a liquid storage device, one end of the delivery pump is communicated with the absorption liquid storage tank, the other end of the delivery pump is communicated with the liquid storage device, the output end of the liquid storage device is located at the upper end of the second spray plate, and a liquid seal layer is disposed in the liquid storage device.
8. The dual-layer exhaust gas treatment system based on emission concentration monitoring of claim 7, wherein the bottom of the first tower body is a contracting conical surface, the bottom of the conical surface rotates in the second through hole, a plurality of first liquid discharge ports are formed in the periphery of the lower end of the conical surface in a penetrating manner, second liquid discharge ports are formed in the bottom of the first blocking plate in a penetrating manner, the first liquid discharge ports correspond to the second liquid discharge ports in position, a ring body is arranged on the bottom of the first chamber in a protruding manner in the periphery of the second through hole, the top of the ring body is higher than the top of the second liquid discharge ports, and a waste liquid pool is arranged at the bottom of the treatment device.
9. The dual-stage exhaust gas treatment system based on emission concentration monitoring of claim 8, wherein each top of the baffle plate is configured as a circumferential closed-loop structure, the top of the first tower and the top of the second tower are rotatably configured in the circumferential closed-loop structure, and the first communication port and the second communication port are opened through the circumferential closed-loop structure, the opening radian of each communication port is between 30 ° and 60 °, and the radial distribution radian of each cavity is 180 °.
10. The dual-stage exhaust treatment system based on emission concentration monitoring of claim 9, wherein the first inlet opening is formed on the conical surface, the first outlet opening is formed on the sidewall of the top of the first tower, and the first inlet opening and the first outlet opening are radially separated by 180 °, and the second inlet opening is formed on the sidewall of the bottom of the second tower, and the second outlet opening is formed on the sidewall of the top of the second tower.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368797A (en) * | 2019-08-28 | 2019-10-25 | 苏州仕净环保科技股份有限公司 | A kind of two-layer equation exhaust treatment system based on concentration of emission monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368797A (en) * | 2019-08-28 | 2019-10-25 | 苏州仕净环保科技股份有限公司 | A kind of two-layer equation exhaust treatment system based on concentration of emission monitoring |
| CN110368797B (en) * | 2019-08-28 | 2023-12-12 | 苏州仕净科技股份有限公司 | Double-deck exhaust treatment system based on emission concentration monitoring |
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