CN111632435B - Method for purifying waste gas containing liquid hazardous chemicals - Google Patents
Method for purifying waste gas containing liquid hazardous chemicals Download PDFInfo
- Publication number
- CN111632435B CN111632435B CN202010538969.XA CN202010538969A CN111632435B CN 111632435 B CN111632435 B CN 111632435B CN 202010538969 A CN202010538969 A CN 202010538969A CN 111632435 B CN111632435 B CN 111632435B
- Authority
- CN
- China
- Prior art keywords
- liquid
- flow blocking
- waste gas
- tank body
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
Abstract
The invention relates to the technical field of waste gas purification, in particular to a method for purifying waste gas containing liquid dangerous chemicals, which comprises separation, adsorption, steady state and purification, wherein a separation tank comprises a tank body, a flow blocking blade and a controller; a flow blocking blade which is rotatably installed is arranged in the tank body, and a channel is arranged at a concave corner on the surface of the flow blocking blade; because a large number of baffle plates with a baffling function are additionally arranged in the tank body, the flow velocity of gas in the tank body is reduced, the subsequent treatment process of gas components is influenced, and the baffling effect of the baffle blades formed in the tank body cannot meet the separation effect of the fluid, the liquid and the gas components in the tank body; therefore, the liquid-gas separation device provided by the invention can be used for completing liquid-gas separation and simultaneously maintaining the circulation effect of gas in the tank body through the rotating flow blocking blade arranged in the separation tank, and the channel on the surface of the flow blocking blade prevents liquid beads from being thrown away by centrifugation in the rotation process of the flow blocking blade, so that the collection of the liquid beads by the flow blocking blade is ensured, and the liquid-gas separation effect in the purification of waste gas containing liquid hazardous chemicals is improved.
Description
Technical Field
The invention relates to the technical field of waste gas purification, in particular to a method for purifying waste gas containing liquid hazardous chemicals.
Background
Hazardous chemicals refer to highly toxic chemicals and other chemicals which have the properties of toxicity, corrosion, explosion, combustion-supporting and the like and have harm to human bodies, facilities and the environment, and the purification refers to the removal of unnecessary or harmful impurities to ensure that the articles reach the purity degree, and the liquid-containing waste gas of the hazardous chemicals is purified to reach the emission standard of environmental protection and maintain normal production operation; for the introduction of the method for purifying waste gas containing liquid hazardous chemical substances, see: hujia, optimization research on comprehensive treatment scheme of waste acid and waste gas [ J ], modern chemical industry, 2018(No.10). 196-.
In the process of conveying materials containing hazardous chemicals to a production site, due to the characteristics of the hazardous chemicals, liquid beads of the hazardous chemicals can be generated in a conveying pipeline to be suspended and gasified and diffuse in the conveying pipeline, corresponding treatment is needed to be carried out to avoid interference of the liquid beads to reaction conditions of production, waste gas containing the liquid hazardous chemicals in the conveying pipeline is often pumped to a purification tower and is merged into a waste gas treatment system for unified treatment, the pumping amount of the waste gas containing the liquid hazardous chemicals in the conveying pipeline entering a waste gas system is in dynamic change, and the stable operation efficiency of the waste gas system is interfered.
Some technical schemes related to a method for purifying waste gas containing liquid hazardous chemicals also appear in the prior art, for example, a chinese patent with application number 2016105804874 discloses a method for purifying waste gas containing liquid hazardous chemicals, which mainly solves the problems that the prior art cannot realize separate collection of liquid hazardous chemicals or solid hazardous chemicals and is easy to scale when treating toxic gas. According to the invention, the liquid-containing hazardous chemical waste gas purification method is adopted, and the liquid-containing hazardous chemical waste gas purification treatment device is used for purifying the liquid-containing hazardous chemical waste gas; however, the technical scheme does not solve the problem that the separation of liquid-gas mixture in the waste gas containing liquid hazardous chemicals increases the difficulty in purifying liquid-gas phases and causes extra purification capacity for treatment.
In view of this, in order to overcome the above technical problems, the present applicant has designed and developed a method for purifying waste gas containing liquid hazardous chemical substances, and adopted a special purification method and a liquid-gas separation structure, so as to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a method for purifying waste gas containing liquid hazardous chemicals.
The invention relates to a method for purifying waste gas containing liquid hazardous chemicals, which comprises the following steps:
s1, separation: introducing the waste gas containing the liquid hazardous chemicals into a purifying device, separating liquid and gas components in the waste gas through a separating tank, controlling flow blocking blades in the separating tank to operate at variable rotating speeds, collecting the separated waste liquid components, carrying out corresponding treatment according to the acid-base characteristics of the waste liquid components, and discharging the gas components in the waste liquid components; in the liquid-gas mixture containing hazardous chemical components, the liquid-gas components are separated and respectively treated correspondingly, so that the treatment efficiency of the hazardous chemical is improved, the baffling separation rate of liquid and gas is increased by the dynamically rotating blades in the separation tank, and the liquid-gas separation effect of the waste gas containing the liquid hazardous chemical components is improved;
s2, adsorption: pumping the gas discharged from the separation tank of S1 into an adsorption tank, dissolving soluble waste gas components by the liquid in the adsorption tank, controlling the liquid circulation in the adsorption tank, performing corresponding replacement treatment on the dissolved waste gas components in the circulating liquid, and continuously discharging the waste gas components which are not dissolved in the liquid; the treatment efficiency of the waste gas is increased by dissolving the waste gas of the hazardous chemical substances into the liquid, the solution for dissolving the components of the waste gas in the adsorption tank is controlled to circulate, the components of the waste gas dissolved in the circulating solution are replaced, the continuous adsorption effect of the dissolved waste gas is kept, and the waste gas of the hazardous chemical substances is distinguished according to the solubility, so that the treatment rate of the waste gas is increased;
s3, steady state: absorbing gas exhausted from the purifying equipment in S2 into a reaction cavity in initial vacuum through a negative pressure pipe, sealing the reaction cavity after the air pressure in the reaction cavity is increased to 0.06MPa, controlling the temperature in the reaction cavity to be below 10 ℃, introducing corresponding reagents into the reaction cavity according to chemical components of hazardous chemical waste gas, and reacting to generate a stable substance; the absorption effect of insoluble components in the hazardous chemical waste gas is ensured in a vacuum absorption mode, and the negative pressure and low temperature state in the reaction cavity are beneficial to controlling the waste gas components in the hazardous chemical in a stable state with low entropy, so that the safety process of generating stable substances through reagent reaction is maintained, and the safety treatment process of the hazardous chemical waste gas is further maintained;
s4, purification: inert impurity components still remain in the waste gas subjected to the stable state treatment of S3, and are filtered by the primary effect and intermediate effect filter screens, and finally discharged into the atmospheric environment to complete the purification of the waste gas containing liquid hazardous chemicals; impurities in the treated hazardous chemical waste gas are filtered out through primary and intermediate-effect two-stage filter screens, the diameter of particulate matters discharged into the atmospheric environment is controlled to be less than 1 micron by the intermediate-effect filter screens, the requirement of environmental protection discharge is met, the occupation of inert gas on the capacity of waste gas treatment equipment is reduced, and the purification effect of the liquid-containing hazardous chemical is improved;
the separation tank in the S1 comprises a tank body, a flow blocking blade and a controller; an air outlet pipe is arranged at the top end of the tank body, an air inlet pipe is arranged at the bottom end of the tank body, and a support is arranged below the tank body; a shaft lever is arranged at the center of the bottom in the tank body, and a flow blocking blade which is rotatably arranged is arranged on the shaft lever; the cross section of the flow blocking blade is a stepped curve, and a channel is arranged at a concave corner on the surface of the flow blocking blade; the channel penetrates from the tail end of the flow blocking blade to the cylindrical surface of the shaft rod; a motor is arranged below the tank body and is in transmission connection with the shaft lever, and the motor changes output power under the action of the controller; the liquid-containing hazardous chemical waste gas enters the tank body from the gas inlet pipe and is converted into fluid moving in the tank body, the fluid circulation is blocked by the flow blocking blades in the tank body, gas components in the liquid-containing hazardous chemical waste gas can be deflected to move away, and the liquid components are attached to the surfaces of the flow blocking blades under the inertia effect and are condensed into liquid beads under the action of gravity, so that the liquid-gas components in the liquid-containing hazardous chemical waste gas are separated; therefore, the invention controls the output power of the motor to match the motion condition of the fluid in the baffle blade through the baffle blade which is arranged in the tank body and rotates under the action of the controller, so that the baffle blade sweeps over the fluid containing the liquid hazardous chemical waste gas at a proper rotating speed, the baffling contact of the fluid is increased, the liquid component separated from liquid and gas is condensed in the channel on the surface of the baffle blade, and the collection of the liquid component separated from liquid and gas is finished; the invention utilizes the rotating flow blocking blade arranged in the separation tank to complete liquid-gas separation and simultaneously maintain the circulation effect of gas in the tank body, and the channel on the surface of the flow blocking blade prevents liquid drops from being thrown away by centrifugal action again in the rotation process of the flow blocking blade, thereby ensuring the collection of the liquid drops by the flow blocking blade and further improving the liquid-gas separation effect in the purification of waste gas containing liquid hazardous chemicals.
Preferably, the flow blocking vanes are obliquely arranged on the shaft, and the tail ends of the flow blocking vanes are higher than the shaft end; a vertical groove is formed in the cylindrical surface of the shaft lever; the vertical groove is positioned at the position where the flow blocking blade is installed on the shaft rod; when baffling the separation of flowing blade in the jar body, the liquid bead that its lower surface was condensed is under the action of gravity, drip to jar body bottom, the liquid bead of its upper surface is under the effect of pivoted centrifugal force, throw to the inner wall of jar body, mix with the liquid-containing dangerization article waste gas that gets into the jar body, the collection to liquid composition in the liquid-gas separation has been destroyed, install on the axostylus axostyle through the slope of baffling blade that sets up, make the liquid bead that its surface was condensed flow to the axostylus axostyle under the action of gravity, the bottom of flowing to the jar body along the vertical groove on the axostylus axostyle cylinder is collected, avoided mixing with the liquid-containing dangerization article waste gas that gets into, thereby liquid's collection effect after the liquid-gas separation in the liquid-containing dangerization article waste gas purification has been promoted.
Preferably, the flow blocking blades are provided with raised fins, the fins are positioned in the channels on the lower surfaces of the flow blocking blades, included angles are formed among the fins, and the opening angles among the fins point to the shaft rod; the condensed liquid beads on the surface of the rotationally-operated flow blocking blade need to be guided to flow to the shaft rod under the combined action of gravity, centrifugal force and adhesive force, so that the liquid beads are prevented from falling off from the flow blocking blade; through the fins arranged on the lower surfaces of the flow blocking blades, included angles are formed among the fins, so that a condensed liquid column is separated by the fins in the process of sliding to the shaft rod, the gathered liquid beads are prevented from falling off excessively, the collection of liquid components is ensured, and the collection effect of liquid after liquid-gas separation in the purification of waste gas containing liquid hazardous chemicals is maintained.
Preferably, the flow blocking vanes comprise driving vanes and driven vanes; the driving blade is driven by the shaft rod to rotate, the upper side and the lower side of the driving blade are respectively provided with a driven blade, and the driven blades are driven by fluid in the tank body to rotate; the rotating flow blocking blades in the tank body interfere with the introduced fluid, so that the promoting or counteracting effect between the fluid and the flow blocking blades cannot be controlled, and the baffling separation effect of the flow blocking blades on the fluid is influenced; keep off through the setting and flow the blade and divide into initiative blade and driven blade, driven blade divides the upper and lower both sides of putting at initiative blade, the fluid that gets into in the jar body at first contacts with driven blade, it is rotatory behind liquid-gas separation effect to drive driven blade, the potential energy of fluid self is consumed, avoid interfering the fluid potential energy change that brings when initiative blade is rotatory, driven blade of initiative blade upside produces the rotation under the surplus effect that fluid potential energy changes, carry out the liquid-gas separation of baffling effect to the fluid jointly, then increased the utilization to fluid potential energy, thereby liquid-gas separation efficiency among the liquid-containing danger chemicals exhaust purification has been promoted.
Preferably, the bottom of the tank body is provided with a transition conical surface, so that the bottom of the tank body is in an inverted round table shape; the gas inlet pipe is used for introducing the liquid-containing hazardous chemical waste gas from the bottom of the tank body, and due to the potential energy of the gas inlet pipe, the gas is remained and kept still on the edge of the bottom of the tank body, so that the separation effect of components in the fluid is not thorough, and the integral liquid-gas separation effect is influenced; through setting up the excessive conical surface in the escalator bottom, reduced the space dead angle of jar body bottom, reduced the fluid in the jar body and remained, and then ensured holistic liquid-gas separation effect to liquid-gas separation effect among the liquid-containing hazardous chemicals exhaust purification has been maintained.
Preferably, the circumferential direction of the transition conical surface is provided with an air ring, and the air ring is communicated with the air inlet pipes which are arranged in a surrounding manner in the direction facing the tank body; the pipe orifice of the air inlet pipe is tangent to the transition conical surface of the tank body; the fluid entering the tank body is in a divergent state, and the fluid is required to directionally pass through the flow blocking blades in order to meet the baffling separation effect between the flow blocking blades and the fluid; through setting up the wind ring in the excessive conical surface of jar body upwards week, the wind ring is linked together with the income trachea of encircleing arranging for the fluid that lets in is through encircleing tangential income trachea effect, and the bottom that gets into the jar body produces the vortex, increases fluidic directional potential energy, has improved the baffling effect between fluid and fender stream blade, and then has strengthened the separation of liquid gas composition in the fluid, thereby has promoted the liquid gas separation effect among the liquid-containing hazardous chemicals exhaust purification.
The invention has the following beneficial effects:
1. according to the invention, the flow blocking blades which rotate in the separation tank are arranged, so that the liquid-gas separation is completed, the circulation effect of gas in the tank body is maintained, and the collection of liquid beads by the flow blocking blades is ensured; the flow blocking blades are obliquely arranged on the shaft rod, so that the fluid is prevented from being mixed with the entering waste gas containing the liquid hazardous chemical substances; the fins arranged on the lower surface of the flow blocking blade enable the condensed liquid column to be separated by the fins in the process of sliding to the shaft rod, and the converged liquid beads are prevented from falling off excessively.
2. The flow blocking blades are divided into the driving blades and the driven blades, so that liquid-gas separation with a flow blocking effect is performed on the fluid together, and the potential energy of the fluid is increased; the transition conical surface arranged at the bottom of the escalator reduces the space dead angle at the bottom of the tank body, thereby ensuring the integral liquid-gas separation effect; the air ring arranged on the circumferential direction of the transition conical surface of the tank body is communicated with the air inlet pipes arranged in a surrounding mode, so that the baffling effect between fluid and the flow blocking blades is improved.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a flow chart of the method for purifying waste gas containing liquid hazardous chemical substances according to the present invention;
FIG. 2 is a perspective view of a separation tank of the present invention;
FIG. 3 is a side view of the separation tank of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is a perspective view of the lower surface of a flow vane member of the present invention;
in the figure: the air flow blocking device comprises a tank body 1, an air outlet pipe 11, an air inlet pipe 12, a support 13, a transition conical surface 14, a flow blocking blade 2, a channel 21, a fin 22, a driving blade 23, a driven blade 24, a shaft rod 3, a vertical groove 31, a motor 4 and a wind ring 5.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the method for purifying waste gas containing liquid hazardous chemical comprises the following steps:
s1, separation: introducing the waste gas containing the liquid hazardous chemicals into a purifying device, separating liquid and gas components in the waste gas through a separating tank, controlling flow blocking blades 2 in the separating tank to operate at variable rotating speeds, collecting the separated waste liquid components, carrying out corresponding treatment according to the acid-base characteristics of the waste liquid components, and discharging the gas components in the waste liquid components; in the liquid-gas mixture containing hazardous chemical components, the liquid-gas components are separated and respectively treated correspondingly, so that the treatment efficiency of the hazardous chemical is improved, the baffling separation rate of liquid and gas is increased by the dynamically rotating blades in the separation tank, and the liquid-gas separation effect of the waste gas containing the liquid hazardous chemical components is improved;
s2, adsorption: pumping the gas discharged from the separation tank of S1 into an adsorption tank, dissolving soluble waste gas components by the liquid in the adsorption tank, controlling the liquid circulation in the adsorption tank, performing corresponding replacement treatment on the dissolved waste gas components in the circulating liquid, and continuously discharging the waste gas components which are not dissolved in the liquid; the treatment efficiency of the waste gas is increased by dissolving the waste gas of the hazardous chemical substances into the liquid, the solution for dissolving the components of the waste gas in the adsorption tank is controlled to circulate, the components of the waste gas dissolved in the circulating solution are replaced, the continuous adsorption effect of the dissolved waste gas is kept, and the waste gas of the hazardous chemical substances is distinguished according to the solubility, so that the treatment rate of the waste gas is increased;
s3, steady state: absorbing gas exhausted from the purifying equipment in S2 into a reaction cavity in initial vacuum through a negative pressure pipe, sealing the reaction cavity after the air pressure in the reaction cavity is increased to 0.06MPa, controlling the temperature in the reaction cavity to be below 10 ℃, introducing corresponding reagents into the reaction cavity according to chemical components of hazardous chemical waste gas, and reacting to generate a stable substance; the absorption effect of insoluble components in the waste gas of the hazardous chemicals is ensured through a vacuum adsorption mode, and the negative pressure and low temperature state in the reaction cavity are beneficial to controlling the waste gas components in the hazardous chemicals in a low-entropy stable state, so that the safety process of generating stable substances through reagent reaction is maintained, and the safety treatment process of the waste gas of the hazardous chemicals is further maintained;
s4, purification: inert impurity components still remain in the waste gas subjected to the stable state treatment of S3, and are filtered by the primary effect and intermediate effect filter screens, and finally discharged into the atmospheric environment to complete the purification of the waste gas containing liquid hazardous chemicals; impurities in the treated hazardous chemical waste gas are filtered out through primary and intermediate-effect two-stage filter screens, the diameter of particulate matters discharged into the atmospheric environment is controlled to be less than 1 micron by the intermediate-effect filter screens, the requirement of environmental protection discharge is met, the occupation of inert gas on the capacity of waste gas treatment equipment is reduced, and the purification effect of the liquid-containing hazardous chemical is improved;
the separation tank in the S1 comprises a tank body 1, a flow blocking blade 2 and a controller; an air outlet pipe 11 is arranged at the top end of the tank body 1, an air inlet pipe 12 is arranged at the bottom end of the tank body 1, and a support 13 is arranged below the tank body 1; a shaft lever 3 is arranged at the center of the bottom in the tank body 1, and a flow blocking blade 2 which is rotatably arranged is arranged on the shaft lever 3; the cross section of the flow blocking blade 2 is a stepped curve, and a channel 21 is arranged at a concave corner on the surface of the flow blocking blade 2; the channel 21 penetrates from the end of the flow blocking blade 2 to the cylindrical surface of the shaft rod 3; a motor 4 is arranged below the tank body 1, the motor 4 is in transmission connection with the shaft lever 3, and the motor 4 changes output power under the action of the controller; the hazardous chemical waste gas containing liquid enters the tank body 1 from the gas inlet pipe 12 and is converted into fluid moving in the tank body 1, the fluid circulation is blocked by the flow blocking blades 2 in the tank body 1, gas components in the hazardous chemical waste gas can be deflected to move away, and liquid components are attached to the surfaces of the flow blocking blades 2 under the action of inertia and are condensed into liquid beads under the action of gravity, so that liquid and gas components in the hazardous chemical waste gas containing liquid are separated; therefore, the invention controls the output power of the motor 4 to match the movement condition of the fluid in the flow blocking blade 2 which is arranged in the tank body 1 and rotates under the action of the controller, so that the flow blocking blade 2 sweeps in the fluid containing the liquid hazardous chemical waste gas at a proper rotating speed, the baffling contact of the fluid is increased, the liquid component separated from liquid and gas is condensed in the channel 21 on the surface of the flow blocking blade 2, and the collection of the liquid component separated from liquid and gas is finished; the invention utilizes the flow blocking blade 2 which is arranged in the separation tank and rotates, the liquid-gas separation is completed, the circulation effect of the gas in the tank body 1 is maintained, the channel 21 on the surface of the flow blocking blade 2 prevents liquid beads from being thrown away by centrifugal action again in the rotation process of the flow blocking blade 2, the collection of the liquid beads by the flow blocking blade 2 is ensured, and the liquid-gas separation effect in the purification of waste gas containing liquid hazardous chemicals is improved.
As an embodiment of the present invention, the flow blocking vane 2 is obliquely installed on the shaft 3, and the end of the flow blocking vane 2 is higher than the end of the shaft 3; a vertical groove 31 is formed in the cylindrical surface of the shaft lever 3; the vertical slots 31 are located where the flow blocking vanes 2 are mounted on the shaft 3; when baffling blade 2 in jar body 1 separates, the liquid bead that its lower surface was condensed is under the action of gravity, the drippage is to jar body 1 bottom, the liquid bead of its upper surface is under the centrifugal force effect of pivoted, throw to jar body 1's inner wall, mix with the liquid-containing hazardous chemicals waste gas that gets into jar body 1, the collection to liquid composition in the liquid-gas separation has been destroyed, baffle through setting up and flow blade 2 slope and install on axostylus axostyle 3, make the liquid bead that its surface was condensed flow to axostylus axostyle 3 under the action of gravity, the bottom that flows to jar body 1 along the vertical groove 31 on the 3 cylinders of axostylus axostyle is collected, avoided mixing with the liquid-containing hazardous chemicals waste gas that gets into, thereby liquid's collection effect after the liquid-gas separation in the purification of liquid-containing hazardous chemicals waste gas has been promoted.
As an embodiment of the present invention, the flow blocking vane 2 is provided with raised fins 22, the fins 22 are located in the channel 21 on the lower surface of the flow blocking vane 2, the fins 22 are arranged at an included angle, and the opening angle between the fins 22 points to the shaft 3; under the combined action of gravity, centrifugal force and adhesive force, condensed liquid beads on the surfaces of the rotationally-operated flow blocking blades 2 need to be guided to flow to the shaft rod 3, so that the liquid beads are prevented from falling off from the flow blocking blades 2, the ratio of the surface area to the mass of the liquid beads is reduced as the liquid beads are gradually converged and increased in the process of flowing on the surfaces of the liquid beads, the increment of the adhesive force between the liquid beads and the flow blocking blades 2 is smaller than that under the action of the gravity and the centrifugal force, the falling of the liquid beads is intensified, and the effect of liquid-gas separation is influenced; through the fins 22 arranged on the lower surface of the flow blocking blade 2, included angles are formed among the fins 22, so that a condensed liquid column is divided by the fins 22 in the process of sliding to the shaft rod 3, the gathered liquid beads are prevented from falling off excessively, the collection of liquid components is ensured, and the collection effect of liquid after liquid-gas separation in the purification of waste gas containing liquid hazardous chemical substances is maintained.
As an embodiment of the present invention, the flow blocking vane 2 includes a driving vane 23 and a driven vane 24; the driving blade 23 is driven by the shaft rod 3 to rotate, the upper side and the lower side of the driving blade 23 are respectively provided with a driven blade 24, and the driven blades 24 are driven by fluid in the tank body 1 to rotate; the rotating flow blocking blades 2 in the tank body 1 interfere with the introduced fluid, so that the promoting or counteracting effect between the fluid and the flow blocking blades 2 cannot be controlled, and the baffling and separating effect of the flow blocking blades 2 on the fluid is influenced; keep off through the setting and flow blade 2 and divide into initiative blade 23 and driven blade 24, driven blade 24 divides the upper and lower both sides of putting at initiative blade 23, the fluid that gets into in the jar body 1 at first contacts with driven blade 24, it is rotatory behind liquid-gas separation effect to drive driven blade 24, the potential energy of fluid self is consumed, avoid interfering the fluid potential energy change that brings when initiative blade 23 is rotatory, driven blade 24 of initiative blade 23 upside produces the rotation under the surplus effect that the fluid potential energy changes, the liquid-gas separation that baffles the effect is carried out to the fluid jointly, then the utilization to the fluid potential energy has been increased, thereby liquid-gas separation efficiency in the liquid-containing dangerous chemicals exhaust purification has been promoted.
As an embodiment of the invention, the bottom of the can body 1 is provided with a transition conical surface 14, so that the bottom of the can body 1 is in an inverted round table shape; the gas inlet pipe 12 is used for introducing the liquid-containing hazardous chemical waste gas from the bottom of the tank body 1, and due to the potential energy action of the gas inlet pipe, the residual standing exists at the bottom edge of the tank body 1, so that the component separation action in the fluid is not thorough, and the integral liquid-gas separation effect is influenced; through setting up the excessive conical surface 14 in the escalator bottom, reduced the space dead angle of jar body 1 bottom, reduced the fluid in jar body 1 and remained, and then ensured holistic liquid-gas separation effect to liquid-gas separation effect among the liquid-containing hazardous chemicals waste gas purification has been maintained.
As an embodiment of the invention, the circumferential direction of the transition conical surface 14 is provided with a wind ring 5, and the wind ring 5 is communicated with the air inlet pipes 12 arranged around in the direction towards the tank body 1; the pipe orifice of the air inlet pipe 12 is tangent to the conical surface of the transition conical surface 14 of the tank body 1; the fluid entering the tank body 1 is in a divergent state, and in order to meet the baffling separation effect between the flow blocking blades 2 and the fluid, the fluid is required to directionally pass through the flow blocking blades 2; through setting up wind ring 5 in the excessive conical surface 14 circumference of jar body 1, wind ring 5 is linked together with the income trachea 12 of encircleing arranging for the fluid that lets in is through encircleing tangential income trachea 12 effect, produces the vortex in the bottom that gets into jar body 1, increases fluidic directional potential energy, has improved the baffling effect between fluid and fender stream blade 2, and then has strengthened the separation of liquid gas composition in the fluid, thereby has promoted the liquid gas separation effect among the liquid-containing hazardous chemicals exhaust purification.
When the device is used, liquid-containing hazardous chemical waste gas enters the tank body 1 from the gas inlet pipe 12 and is converted into fluid moving in the tank body 1, the fluid is blocked by the flow blocking blades 2 in the tank body 1, gas components in the fluid can be blocked and moved away, and liquid components are attached to the surfaces of the flow blocking blades 2 under the inertia effect and are condensed into liquid beads under the gravity effect, so that the liquid-gas components in the liquid-containing hazardous chemical waste gas are separated; through the flow blocking blade 2 which is arranged in the tank body 1 and rotates, under the action of a controller, the output power of the control motor 4 is matched with the motion condition of fluid in the flow blocking blade 2, so that the flow blocking blade 2 sweeps in the fluid containing liquid hazardous chemical waste gas at a proper rotating speed, the baffling contact of the fluid is increased, the liquid components separated from liquid and gas are condensed in a channel 21 on the surface of the flow blocking blade 2, and the collection of the liquid components separated from liquid and gas is completed; the flow blocking blades 2 are obliquely arranged on the shaft lever 3, so that liquid beads condensed on the surface of the flow blocking blades flow to the shaft lever 3 under the action of gravity, flow to the bottom of the tank body 1 along the vertical grooves 31 on the cylindrical surface of the shaft lever 3 and are collected, and the mixture of the liquid-containing hazardous chemical waste gas and the entering liquid-containing hazardous chemical waste gas is avoided; the fins 22 are arranged on the lower surface of the flow blocking blade 2, and included angles are formed among the fins 22, so that the condensed liquid column is divided by the fins 22 in the process of sliding to the shaft rod 3, the converged liquid beads are prevented from falling off too much, and the collection of liquid components is ensured; the flow blocking blades 2 are divided into driving blades 23 and driven blades 24, the driven blades 24 are respectively arranged on the upper side and the lower side of the driving blades 23, fluid entering the tank body 1 is firstly contacted with the driven blades 24, the driven blades 24 are driven to rotate, potential energy of the fluid is consumed after liquid-gas separation, fluid potential energy change caused by interference on rotation of the driving blades 23 is avoided, the driven blades 24 on the upper sides of the driving blades 23 rotate under the action of surplus of the fluid potential energy change, liquid-gas separation with a baffling effect is carried out on the fluid together, and then utilization of the fluid potential energy is increased; the transition conical surface 14 arranged at the bottom of the escalator reduces the space dead angle at the bottom of the tank body 1, reduces the fluid residue in the tank body 1, and further ensures the integral liquid-gas separation effect; the air ring 5 is arranged on the circumferential direction of the transition conical surface 14 of the tank body 1, and the air ring 5 is communicated with the air inlet pipes 12 which are arranged in a surrounding mode, so that introduced fluid generates vortex at the bottom of the tank body 1 under the action of the air inlet pipes 12 which are arranged in the surrounding direction, the directional potential energy of the fluid is increased, the baffling effect between the fluid and the flow blocking blades 2 is improved, and the separation of liquid and gas components in the fluid is further enhanced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A method for purifying waste gas containing liquid hazardous chemicals is characterized by comprising the following steps:
s1, separation: introducing the waste gas containing the liquid hazardous chemicals into a purifying device, separating liquid and gas components in the waste gas through a separating tank, controlling flow blocking blades (2) in the separating tank to operate at variable rotating speeds, collecting separated waste liquid components, carrying out corresponding treatment according to the acid-base characteristics of the waste liquid components, and discharging gas components in the waste liquid components;
s2, adsorption: pumping the gas discharged from the separation tank of S1 into an adsorption tank, dissolving soluble waste gas components by the liquid in the adsorption tank, controlling the liquid circulation in the adsorption tank, performing corresponding replacement treatment on the dissolved waste gas components in the circulating liquid, and continuously discharging the waste gas components which are not dissolved in the liquid;
s3, steady state: absorbing gas exhausted from the purifying equipment in S2 into a reaction cavity in initial vacuum through a negative pressure pipe, sealing the reaction cavity after the air pressure in the reaction cavity is increased to 0.06MPa, controlling the temperature in the reaction cavity to be below 10 ℃, introducing corresponding reagents into the reaction cavity according to chemical components of hazardous chemical waste gas, and reacting to generate a stable substance;
s4, purification: inert impurity components still remain in the waste gas subjected to the stable state treatment of S3, and are filtered by the primary effect and intermediate effect filter screens, and finally discharged into the atmospheric environment to complete the purification of the waste gas containing liquid hazardous chemicals;
the separation tank in the S1 comprises a tank body (1), a flow blocking blade (2) and a controller; an air outlet pipe (11) is arranged at the top end of the tank body (1), an air inlet pipe (12) is arranged at the bottom end of the tank body (1), and a support (13) is arranged below the tank body (1); a shaft lever (3) is arranged at the center of the bottom in the tank body (1), and a flow blocking blade (2) which is rotatably arranged is arranged on the shaft lever (3); the cross section of the flow blocking blade (2) is in a stepped curve, and a channel (21) is arranged at a concave corner on the surface of the flow blocking blade (2); the channel (21) penetrates from the tail end of the flow blocking blade (2) to the cylindrical surface of the shaft rod (3); a motor (4) is arranged below the tank body (1), the motor (4) is in transmission connection with the shaft lever (3), and the motor (4) changes output power under the action of the controller;
the flow blocking blades (2) are obliquely arranged on the shaft lever (3), and the tail ends of the flow blocking blades (2) are higher than the end of the shaft lever (3); a vertical groove (31) is formed in the cylindrical surface of the shaft lever (3); the vertical groove (31) is positioned at the position where the flow blocking blade (2) is installed on the shaft lever (3);
the flow blocking blades (2) are provided with raised fins (22), the fins (22) are positioned in the channels (21) on the lower surfaces of the flow blocking blades (2), the fins (22) are arranged in an included angle, and the opening angle among the fins (22) points to the shaft lever (3);
the flow blocking blade (2) comprises a driving blade (23) and a driven blade (24); the driving blades (23) are driven by the shaft rod (3) to rotate, the upper side and the lower side of each driving blade (23) are respectively provided with driven blades (24), and the driven blades (24) rotate under the driving of fluid in the tank body (1).
2. The method for purifying the waste gas containing the liquid dangerous chemicals according to claim 1, characterized in that: the bottom of the tank body (1) is provided with a transition conical surface (14), so that the bottom of the tank body (1) is in an inverted round table shape.
3. The method for purifying the waste gas containing the liquid dangerous chemicals according to claim 2, characterized in that: the circumferential direction of the transition conical surface (14) is provided with an air ring (5), and the air ring (5) is communicated with the air inlet pipes (12) which are arranged in a surrounding way in the direction towards the tank body (1); the pipe orifice of the air inlet pipe (12) is tangent to the conical surface of the transition conical surface (14) of the tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010538969.XA CN111632435B (en) | 2020-06-13 | 2020-06-13 | Method for purifying waste gas containing liquid hazardous chemicals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010538969.XA CN111632435B (en) | 2020-06-13 | 2020-06-13 | Method for purifying waste gas containing liquid hazardous chemicals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111632435A CN111632435A (en) | 2020-09-08 |
| CN111632435B true CN111632435B (en) | 2022-06-14 |
Family
ID=72323862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010538969.XA Active CN111632435B (en) | 2020-06-13 | 2020-06-13 | Method for purifying waste gas containing liquid hazardous chemicals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111632435B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113484B (en) * | 2021-11-26 | 2022-08-05 | 上海交通大学 | Real-time oxygen concentration measuring device under liquid drop environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755096A (en) * | 1996-07-15 | 1998-05-26 | Holleyman; John E. | Filtered fuel gas for pressurized fluid engine systems |
| WO2000004979A2 (en) * | 1998-07-23 | 2000-02-03 | Dreison International, Inc. | Air pre-cleaner |
| WO2007094725A1 (en) * | 2006-02-13 | 2007-08-23 | Alfa Laval Corporate Ab | Centrifugal separator |
| WO2009037496A2 (en) * | 2007-09-22 | 2009-03-26 | Parker Hannifin (Uk) Ltd | A separator |
| EP2225015A1 (en) * | 2007-12-06 | 2010-09-08 | Basell Poliolefine Italia S.r.l. | Method and apparatus for gas-solid separation, application to polymerization reactions |
| CN205379732U (en) * | 2016-02-03 | 2016-07-13 | 邹联中 | Developments physics blade shielding clarifier device |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL127844C (en) * | 1960-09-22 | |||
| US3474597A (en) * | 1967-02-01 | 1969-10-28 | Norton Co | Gas-liquid contactor |
| NL166858C (en) * | 1969-05-24 | 1981-10-15 | Petersen Hugo Verfahrenstech | DEVICE FOR WET CLEANING OF A GAS POLLUTED WITH SUBSTANCES. |
| US4938785A (en) * | 1988-07-22 | 1990-07-03 | Pai Corporation | Gas-liquid separation |
| CN103961997B (en) * | 2014-05-29 | 2015-12-02 | 湖南众鑫新材料科技股份有限公司 | A kind of ammonium metavanadate roaster gives off the recovery process of tail gas |
| JP6800018B2 (en) * | 2014-12-02 | 2020-12-16 | 株式会社横田製作所 | Gas-liquid separator |
| CN205391952U (en) * | 2016-02-29 | 2016-07-27 | 牛信伟 | High -efficient dust removal defogging device of HCPM condensing |
| CN205435200U (en) * | 2016-03-23 | 2016-08-10 | 盟立自动化股份有限公司 | A gas -liquid separation for wet process manufacturing equipment |
| CN107998806A (en) * | 2016-10-28 | 2018-05-08 | 北京航天试验技术研究所 | A kind of dinitrogen tetroxide leakage collecting device and its collection method |
| CN207562518U (en) * | 2017-08-03 | 2018-07-03 | 武汉帕浦安科技有限公司 | A kind of gas-liquid separation device |
| CN109513319A (en) * | 2018-12-05 | 2019-03-26 | 珠海力新环保有限公司 | A kind of waste gas treatment equipment and its waste gas processing method |
| CN110384982A (en) * | 2019-08-19 | 2019-10-29 | 上海电气集团股份有限公司 | A kind of centrifugal gas-liquid separator |
| CN110681236A (en) * | 2019-11-15 | 2020-01-14 | 苏州敬天爱人环境科技有限公司 | Chemical waste gas treatment device and method |
-
2020
- 2020-06-13 CN CN202010538969.XA patent/CN111632435B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755096A (en) * | 1996-07-15 | 1998-05-26 | Holleyman; John E. | Filtered fuel gas for pressurized fluid engine systems |
| WO2000004979A2 (en) * | 1998-07-23 | 2000-02-03 | Dreison International, Inc. | Air pre-cleaner |
| WO2007094725A1 (en) * | 2006-02-13 | 2007-08-23 | Alfa Laval Corporate Ab | Centrifugal separator |
| WO2009037496A2 (en) * | 2007-09-22 | 2009-03-26 | Parker Hannifin (Uk) Ltd | A separator |
| EP2225015A1 (en) * | 2007-12-06 | 2010-09-08 | Basell Poliolefine Italia S.r.l. | Method and apparatus for gas-solid separation, application to polymerization reactions |
| CN205379732U (en) * | 2016-02-03 | 2016-07-13 | 邹联中 | Developments physics blade shielding clarifier device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111632435A (en) | 2020-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102451610B (en) | Treatment method for nitrogen oxide tail gas discharged from industrial production furnace, and apparatus thereof | |
| CN104474996A (en) | Multistage cross-flow rotation packed bed mass transfer and reaction equipment | |
| CN111632435B (en) | Method for purifying waste gas containing liquid hazardous chemicals | |
| CN101716448A (en) | Dynamic rotary rotational flow plate device for strengthening transmission | |
| CN105771609A (en) | Centrifugal spray tower | |
| CN100546689C (en) | A kind of vertical rotating bed super gravity field equipment | |
| CN203525553U (en) | Multiphase pneumatic desulfurization tower | |
| CN109987668B (en) | Dual-rotation gas-liquid separation device and wastewater treatment equipment | |
| CN101991997B (en) | High-speed rotary atomization and absorption device for desulfurizing and removing smoke dust | |
| CN206996240U (en) | A kind of vortex pulse type reactor | |
| CN111644042B (en) | Waste gas desulfurization purification system and waste gas purification process | |
| CN111644041A (en) | Sulfur dioxide-containing waste gas purification system | |
| CN111439827A (en) | Liftable automatic rotary aerator | |
| CN108939887B (en) | Supergravity desulfurizing device | |
| JPS631439A (en) | Apparatus and method for treating particle in fluid | |
| CN1611293A (en) | Ultragravity field rotary bed mass transfer and conversion unit | |
| CN110327765A (en) | A kind of flue-gas dust-removing and desulfurization device | |
| CN216321096U (en) | CFB boiler flue gas processing apparatus | |
| CN1307921A (en) | Waste gas coupling purifier | |
| CN210159617U (en) | High-flow high-efficiency multiphase reactor | |
| RU2579084C2 (en) | Contact interaction between gas and fluid and device to this end | |
| CN205760578U (en) | Centrifugal spray | |
| CN111375366B (en) | Rotating bed reactor and two-stage absorption process | |
| CN111617590A (en) | Waste gas purifying equipment | |
| CN210495292U (en) | Hypergravity bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220524 Address after: 030000 Yang Xing Xiang Shan Du Cun, Yangqu County, Taiyuan City, Shanxi Province Applicant after: Shanxi Taiyuan solid waste disposal center (Co.,Ltd.) Address before: 210000 room 512, block D, 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Applicant before: Jiangsu Qijing Environmental Protection Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |