CN112843955B - Tunnel cave exhaust purification processing system - Google Patents
Tunnel cave exhaust purification processing system Download PDFInfo
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- CN112843955B CN112843955B CN202011593737.0A CN202011593737A CN112843955B CN 112843955 B CN112843955 B CN 112843955B CN 202011593737 A CN202011593737 A CN 202011593737A CN 112843955 B CN112843955 B CN 112843955B
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
Abstract
The invention relates to a tunnel kiln waste gas purification treatment system which comprises a bottom plate, a gas treatment device and a gas inlet pipe, wherein the gas treatment device is arranged in the middle of the upper end of the bottom plate and is of a cylindrical structure, a gas inlet is formed in the lower end of the left side of the gas treatment device, and the gas inlet pipe is arranged on the gas inlet. The invention can solve the problems that the existing equipment can not effectively remove large-particle impurities in the waste gas generally when the waste gas of the tunnel kiln is treated, the impurities easily block the meshes of the filter screen, the filtering efficiency of the filter screen is influenced, and meanwhile, the harmful substances in the waste gas can not be effectively removed when the waste gas of the tunnel kiln is purified, the sprayed liquid easily flows into the filter screen during purification, the filter screen is easily stuck, and the like.
Description
Technical Field
The invention relates to the field of tunnel kilns, in particular to a tunnel kiln waste gas purification treatment system.
Background
The tunnel kiln is a kiln similar to a tunnel and internally provided with delivery vehicles such as kiln cars and the like built by refractory materials, heat insulation materials and building materials, is a modern continuous-firing thermal device, is widely used for the roasting production of ceramic products, and also has application in the metallurgical industry such as grinding materials and the like; the tunnel cave can produce a large amount of harmful waste gas in the course of the work, can discharge in the air after need carrying out purification treatment to waste gas.
At present, the existing equipment generally has the following defects when the waste gas of the tunnel kiln is purified and processed: 1. when the existing equipment is used for treating the waste gas of the tunnel kiln, large-particle impurities in the waste gas cannot be effectively removed, and the impurities easily block meshes of a filter screen to influence the filtering efficiency of the filter screen; 2. when the existing equipment is used for purifying the waste gas of the tunnel kiln, harmful substances in the waste gas cannot be effectively removed, and meanwhile, the sprayed liquid easily flows into the filter screen during purification, so that the filter screen is easily stuck.
Disclosure of Invention
Technical problem to be solved
The invention can solve the problems that the existing equipment can not effectively remove large-particle impurities in the waste gas generally when the waste gas of the tunnel kiln is treated, the impurities easily block meshes of the filter screen, the filtering efficiency of the filter screen is influenced, the existing equipment can not effectively remove harmful substances in the waste gas generally when the waste gas of the tunnel kiln is purified, and the phenomenon that the filter screen is easily burnt due to the fact that liquid sprayed during purification easily flows into the filter screen, and the like.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme that the tunnel kiln waste gas purification treatment system comprises a bottom plate, a gas treatment device and a gas inlet pipe, wherein the gas treatment device is arranged in the middle of the upper end of the bottom plate and is of a cylindrical structure, the lower end of the left side of the gas treatment device is provided with a gas inlet, and the gas inlet pipe is arranged on the gas inlet.
The gas treatment device include the casing frame, the baffle, air inlet mechanism, the rotating-tube, rabbling mechanism, processing mechanism, atomizing mechanism and filtering mechanism, the casing frame install at bottom plate upper end middle part, casing frame middle part is hollow structure, the baffle is installed to the inside lower extreme of casing frame, be provided with sealed chamber between baffle lower extreme and the casing frame, the intussuseption of sealed intracavity is filled with the treatment fluid, the inside rotating-tube that is provided with of casing frame, the rotating-tube lower extreme is connected with the baffle through the bearing, be provided with rabbling mechanism in the sealed chamber, rabbling mechanism installs on the rotating-tube, be provided with air inlet mechanism on the baffle, air inlet mechanism installs on the rotating-tube, air inlet mechanism top is provided with processing mechanism, the processing mechanism outside is installed inside the casing frame, processing mechanism middle part is connected with the rotating-tube, processing mechanism top is provided with atomizing mechanism, the atomizing mechanism outside is hugged closely with the casing frame inner wall, atomizing mechanism mid-mounting is on the rotating-tube, filtering mechanism is installed to the inside upper end of casing frame, the filtering mechanism lower extreme is connected with the rotating-tube through the bearing.
During specific work, tunnel kiln waste gas gets into inside the casing frame through the intake pipe, high-pressure waste gas drives the rotating-tube rotation through mechanism of admitting air, the rotating-tube can drive rabbling mechanism and rotate, prevent that the processing liquid from taking place sedimentary phenomenon, processing mechanism can filter the inside particle impurity of waste gas, simultaneously with waste gas homodisperse to the casing frame inside, atomizing mechanism can evenly atomize the processing liquid, make the processing liquid after the atomizing can contact with the harmful substance in the waste gas effectively, then the gas after the atomizing is adhered to the casing frame inner wall under the effect of gravity and centrifugal force on, filtering mechanism can carry out secondary filter to gas, guarantee that the gas after the emission accords with the standard.
Processing mechanism include the mount, the connecting rod, the rotating turret, shake sieve unit and the frame of giving vent to anger, casing frame internally mounted have the mount, the mount cross-section is the toper structure, the mount middle part is connected with the rotating tube through the bearing, the inside ring channel that is provided with of mount, the ring channel leads to sliding fit's mode and is connected with the rotating turret, the rotating turret inboard is connected with the rotating tube through the connecting rod, evenly be provided with logical groove on the rotating turret, it shakes the sieve unit to lead to the inslot to install, evenly be provided with out the gas frame on the mount lateral surface, it installs on the mount outer wall to give vent to anger the frame, concrete during operation, the rotating turret can drive and shake the sieve unit and can filter the large granule impurity in the waste gas effectively, can prevent simultaneously that large granule impurity from piling up on the screen cloth, it can be with the gaseous exhaust after filtering to give vent to anger the frame.
The sieve unit that shakes include the screen frame, the slide bar, coupling spring and wire casing, logical inslot be connected with the screen frame through sliding fit's mode, screen frame medial surface is provided with the filtration sack, evenly be provided with the through-hole on the rotating turret, be connected with the slide bar through sliding fit's mode in the through-hole, the slide bar inboard is connected with the screen frame, be provided with coupling spring on the slide bar, the slide bar outside is provided with the slider, the slider is connected with the wire casing through sliding fit's mode, the wire casing sets up on the mount, the wire casing is the wave form structure, concrete during operation, when the rotating turret rotates, the rotating turret drives the slide bar outside and slides in the wire casing is inside, the wire casing of wave form structure drives screen frame reciprocating motion through the slide bar, prevent that large granule impurity from piling up in the filtration sack inboard, avoid the dust gathering, adhesion or crust just can't clear away the bag phenomenon of pasting that leads to the clear up in the filtration sack.
As a preferred technical scheme of the invention, the air inlet mechanism comprises an air inlet frame and a turbine disc, the air inlet frame is arranged in the shell frame and is arranged on the inner side of the air inlet, the air inlet frame is in an inclined structural design, an air injection groove is arranged in the air inlet frame, the turbine disc is arranged on the right side of the air inlet frame, and the turbine disc is arranged on the rotating pipe.
As a preferred technical scheme of the invention, the stirring mechanism comprises a liquid inlet pipe and a stirring rod, the lower end of the rotating pipe is provided with the liquid inlet pipe, the section of the liquid inlet pipe is of a horn-shaped structure, the stirring rod is uniformly arranged in the sealing cavity, the stirring rod is arranged on the rotating pipe, and the stirring rod is uniformly provided with the return holes.
As a preferred technical scheme of the invention, the atomization mechanism comprises a connecting rod, atomizers and a scraper, the connecting rod is uniformly arranged on the rotating pipe, the atomizers are uniformly arranged on opposite surfaces of the connecting rod, the scraper is arranged between the outer sides of the connecting rods, when the atomization device works, the atomizers can uniformly atomize treatment liquid, so that the atomized treatment liquid can be effectively contacted with harmful substances in waste gas, then the atomized gas is adhered to the inner wall of the shell frame under the action of gravity and centrifugal force, and the scraper can scrape impurities, thereby being beneficial to the subsequent collection of the impurities.
As a preferred technical scheme of the invention, the filtering mechanism comprises a filtering frame, a filtering net and a bearing seat, the filtering frame is installed at the upper end inside the shell frame, the bearing seat is installed in the middle of the filtering frame, the bearing seat is connected with the rotating pipe, filtering holes are uniformly formed in the filtering frame, and the filtering net is filled inside the filtering frame.
As a preferred technical scheme of the invention, the section of the air outlet frame is of a trapezoid structure, the air outlet holes are uniformly formed in the air outlet frame and communicated with the inside of the fixing frame, when the air outlet frame works, the air outlet frames are uniformly arranged on the outer side of the fixing frame, the liquid guide groove is formed between every two adjacent air outlet frames, when atomized treatment liquid is condensed and then drops, the air outlet frame of the trapezoid structure can prevent the liquid from flowing into the inside of the fixing frame through the air outlet holes, and the phenomenon that the attached particle impurities are condensed due to the fact that a filter cloth bag is wetted is avoided.
As a preferred technical scheme of the invention, the scraper is of an arc structure, the scraper is made of hard corrosion-resistant plastics, the outer side surface of the scraper is tightly attached to the inner wall of the shell frame, and the scraper can effectively remove impurities adhered to the inner wall of the shell frame, so that the accumulation phenomenon is avoided.
(III) advantageous effects
1. According to the tunnel kiln waste gas purification treatment system provided by the invention, the treatment mechanism can effectively filter the tunnel kiln waste gas, the filtering effect is good, large granular impurities in the waste gas can be removed, meanwhile, the large granular impurities can be prevented from blocking meshes of the filtering cloth bag, the phenomenon of bag pasting caused by dust gathering, adhesion or crusting in the filtering cloth bag and incapability of being removed is avoided, and the filtering efficiency of the filtering cloth bag is improved;
2. according to the tunnel kiln waste gas purification treatment system provided by the invention, the atomization mechanism can effectively atomize the treatment liquid, the atomization effect is good, the atomization is uniform, the treatment liquid can be fully combined with harmful substances in the waste gas, and impurities adhered to the inner wall of the shell frame after treatment can be scraped off, so that the phenomenon of accumulation of the impurities is prevented;
3. according to the tunnel kiln waste gas purification treatment system provided by the invention, the air outlet frame adopts a trapezoidal structure design, and when the atomized treatment liquid is condensed and then drips, the air outlet frame with the trapezoidal structure can prevent the liquid from flowing into the fixing frame through the air outlet hole, so that the phenomenon that the attached particle impurities are condensed due to the fact that the filter cloth bag is wetted is avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic cross-sectional view of the bottom plate, the housing frame, the partition plate, the air inlet mechanism, the rotating tube, the stirring mechanism and the air inlet tube of the present invention;
FIG. 3 is a schematic cross-sectional view of the rotary tube and the processing mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the fixing frame and the air outlet frame of the present invention;
fig. 5 is a schematic cross-sectional view of the housing frame, the atomizing mechanism and the filtering mechanism of the present invention.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 5, a tunnel kiln exhaust purification processing system, includes bottom plate 1, gas treatment device 2 and intake pipe 3, bottom plate 1 upper end mid-mounting have gas treatment device 2, gas treatment device 2 is cylindrical structure, gas treatment device 2 left side lower extreme is provided with the air inlet, installs intake pipe 3 on the air inlet.
The gas treatment device 2 comprises a shell frame 21, a partition plate 22, a gas inlet mechanism 23, a rotating pipe 24, a stirring mechanism 25, a treatment mechanism 26, an atomizing mechanism 27 and a filtering mechanism 28, wherein the shell frame 21 is installed in the middle of the upper end of the bottom plate 1, the middle of the shell frame 21 is of a hollow structure, the partition plate 22 is installed at the lower end inside the shell frame 21, a sealed cavity is formed between the lower end of the partition plate 22 and the shell frame 21, treatment liquid is filled in the sealed cavity, the rotating pipe 24 is arranged inside the shell frame 21, the lower end of the rotating pipe 24 is connected with the partition plate 22 through a bearing, the stirring mechanism 25 is arranged in the sealed cavity, the stirring mechanism 25 is installed on the rotating pipe 24, the gas inlet mechanism 23 is arranged on the partition plate 22, the gas inlet mechanism 23 is installed on the rotating pipe 24, the treatment mechanism 26 is arranged above the gas inlet mechanism 23, the outer side of the treatment mechanism 26 is installed inside the shell frame 21, the middle of the treatment mechanism 26 is connected with the rotating pipe 24, the atomizing mechanism 27 is arranged above the treatment mechanism 26, the outer side of the atomizing mechanism 27 is tightly attached to the inner wall of the shell frame 21, the middle of the atomizing mechanism 27 is installed on the rotating pipe 24, the rotating pipe, the upper end inside of the shell frame 21 is installed with the filtering mechanism 28, and the lower end of the filtering mechanism 28 is connected with the rotating pipe 24 through the bearing.
During operation specifically, tunnel cave waste gas gets into inside casing frame 21 through intake pipe 3, high-pressure waste gas drives the rotating-tube 24 through mechanism 23 that admits air and rotates, rotating-tube 24 can drive rabbling mechanism 25 and rotate, prevent that the treatment fluid from taking place sedimentary phenomenon, processing mechanism 26 can filter the inside particulate impurity of waste gas, simultaneously with waste gas homodisperse to inside the casing frame, atomizing mechanism 27 can be with the even atomizing of treatment fluid, make the treatment fluid after the atomizing can be effectively with the harmful substance contact in the waste gas, then the gas after the atomizing is adhered to casing frame 21 inner wall under the effect of gravity and centrifugal force on, filtering mechanism 28 can carry out secondary filter to gas, guarantee that the gas after discharging accords with the standard.
The vibrating screen unit 264 includes a screen frame 2641, a sliding rod 2642, a connecting spring 2643 and a wire groove 2644, the through groove is connected with the screen frame 2641 through a sliding fit mode, the inner side surface of the screen frame 2641 is provided with a filtering cloth bag, a through hole is uniformly arranged on the rotating frame 263, the through hole is connected with the sliding rod 2642 through a sliding fit mode, the inner side of the sliding rod 2642 is connected with the screen frame 2641, the sliding rod 2642 is provided with the connecting spring 2643, the outer side of the sliding rod 2642 is provided with a sliding block, the sliding block is connected with the wire groove 2644 through a sliding fit mode, the wire groove 2644 is arranged on the fixing frame 261, the wire groove 2644 is of a waveform structure, during specific work, when the rotating frame 263 rotates, the rotating frame 263 drives the outer side of the sliding rod 2642 to slide in the wire groove 2644, the wire groove 2644 of the waveform structure drives the screen frame 2641 to reciprocate through the sliding rod 2642, so as to prevent large particle impurities from accumulating on the inner side surface of the filtering cloth bag, and avoid the phenomenon that large particle aggregates, adheres or crusts in the filtering cloth bag and can not be removed.
The frame 265 cross-section of giving vent to anger be the trapezium structure, evenly be provided with the venthole on the frame 265 of giving vent to anger, the venthole is linked together with the mount 261 is inside, concrete during operation, go out gas frame 265 align to grid in the mount 261 outside, be provided with the liquid guide groove between the adjacent frame 265 of giving vent to anger, when taking place to drip after the processing liquid after the atomizing condenses, the frame 265 of giving vent to anger of trapezium structure can prevent that liquid from flowing into the mount 261 inside through the venthole, avoid filtering the sack and wet and lead to adnexed particle impurity to take place the phenomenon of dewing.
Atomizing mechanism 27 include connecting rod 271, atomizer 272 and scraper 273, rotating tube 24 on evenly be provided with connecting rod 271, evenly install atomizer 272 on the connecting rod 271 opposite face, install scraper 273 between the connecting rod 271 outside, concrete during operation, atomizer 272 can be with the even atomizing of treatment fluid, make the treatment fluid after the atomizing can contact with the harmful substance in the waste gas effectively, then the gas after the atomizing is adhered to on casing frame 21 inner wall under the effect of gravity and centrifugal force, scraper 273 can strike off impurity, do benefit to the follow-up collection of impurity.
The filter mechanism 28 include filter frame 281, filter screen 282 and bearing frame 283, the inside upper end of casing frame 21 install filter frame 281, filter frame 281 mid-mounting has the bearing frame 283, the bearing frame 283 is connected with the rotating tube 24, evenly be provided with the filtration pore on the filter frame 281, the inside packing of filter frame 281 has filter screen 282, during specific work, filter screen 282 can carry out secondary filter to waste gas, prevents to throw away in the gas after the emission and remains harmful gas.
The invention comprises the following steps in specific work:
the first step is as follows: firstly, the tunnel kiln waste gas enters the shell frame 21 through the gas inlet pipe 3, and when the high-pressure waste gas enters through the gas inlet frame 231, the gas inlet frame 231 with the inclined structure drives the waste gas to be obliquely sprayed, so that the high-pressure waste gas can drive the rotating pipe 24 to rotate through the turbine disc 232;
the second step is that: when the rotating pipe 24 rotates, the rotating pipe 24 stirs the treatment liquid through the stirring rod 252 to prevent the treatment liquid from depositing, and meanwhile, the liquid inlet pipe 251 feeds the treatment liquid into the atomizing mechanism 27, and the atomizer 272 can atomize the treatment liquid uniformly;
the third step: when the exhaust gas enters the processing mechanism 26, the rotating frame 263 can drive the vibrating screen unit 264 to effectively filter large-particle impurities in the exhaust gas, meanwhile, the vibrating screen unit 264 can prevent the large-particle impurities from being accumulated on a screen, so that the phenomenon of bag pasting caused by dust accumulation, adhesion or crusting in a filtering cloth bag and incapability of clearing is avoided, and the gas outlet frame 265 can discharge the filtered gas;
the fourth step: gas after will going out gas frame 265 discharge fully reacts with the treatment fluid after the atomizing, and then can get rid of the harmful substance in the waste gas effectively, then the gas after the atomizing receives on adhesion casing frame 21 inner wall under the effect of gravity and centrifugal force, and scraper blade 273 can strike off impurity, does benefit to the follow-up collection of impurity.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a tunnel cave exhaust purification processing system, includes bottom plate (1), gas processing apparatus (2) and intake pipe (3), its characterized in that: bottom plate (1) upper end mid-mounting have gas treatment device (2), gas treatment device (2) are cylindrical structure, gas treatment device (2) left side lower extreme is provided with the air inlet, installs intake pipe (3) on the air inlet, wherein:
the gas treatment device (2) comprises a shell frame (21), a partition plate (22), a gas inlet mechanism (23), a rotating pipe (24), a stirring mechanism (25), a treatment mechanism (26), an atomizing mechanism (27) and a filtering mechanism (28), wherein the shell frame (21) is installed in the middle of the upper end of a bottom plate (1), the middle of the shell frame (21) is of a hollow structure, the partition plate (22) is installed at the lower end inside the shell frame (21), a sealing cavity is formed between the lower end of the partition plate (22) and the shell frame (21), treatment liquid is filled in the sealing cavity, the rotating pipe (24) is arranged inside the shell frame (21), the lower end of the rotating pipe (24) is connected with the partition plate (22) through a bearing, the stirring mechanism (25) is arranged inside the sealing cavity, the stirring mechanism (25) is installed on the rotating pipe (24), the gas inlet mechanism (23) is arranged on the partition plate (22), the gas inlet mechanism (23) is installed on the rotating pipe (24), the treatment mechanism (26) is arranged above the gas inlet mechanism (23), the outer side of the treatment mechanism (26) is installed inside the shell frame (21) in a tight fit manner, the middle of the treatment mechanism (26) is connected with the rotating pipe (24), the inner wall (27), the inner wall of the atomizing mechanism (27) is arranged on the inner wall of the shell frame (21), the middle part of the atomizing mechanism (27) is arranged on the rotating pipe (24), the upper end in the shell frame (21) is provided with a filtering mechanism (28), and the lower end of the filtering mechanism (28) is connected with the rotating pipe (24) through a bearing;
the air inlet mechanism (23) comprises an air inlet frame (231) and a turbine disc (232), the air inlet frame (231) is arranged in the shell frame (21), the air inlet frame (231) is installed on the inner side of an air inlet, the air inlet frame (231) is designed in an inclined structure, an air injection groove is formed in the air inlet frame (231), the turbine disc (232) is arranged on the right side of the air inlet frame (231), and the turbine disc (232) is installed on the rotating pipe (24);
the processing mechanism (26) comprises a fixing frame (261), a connecting rod (262), a rotating frame (263), a vibrating screen unit (264) and an air outlet frame (265), wherein the fixing frame (261) is installed inside the shell frame (21), the cross section of the fixing frame (261) is of a conical structure, the middle part of the fixing frame (261) is connected with the rotating pipe (24) through a bearing, an annular groove is formed inside the fixing frame (261), the rotating frame (263) is connected inside the annular groove in a sliding fit mode, the inner side of the rotating frame (263) is connected with the rotating pipe (24) through the connecting rod (262), through grooves are uniformly formed in the rotating frame (263), the vibrating screen unit (264) is installed inside the through grooves, the air outlet frame (265) is uniformly arranged on the outer side surface of the fixing frame (261), and the air outlet frame (265) is installed on the outer wall of the fixing frame (261);
the vibrating screen unit (264) comprises a screen frame (2641), a sliding rod (2642), a connecting spring (2643) and a wire groove (2644), the through groove is connected with the screen frame (2641) in a sliding fit mode, the inner side surface of the screen frame (2641) is provided with a filtering cloth bag, the rotating frame (263) is uniformly provided with through holes, the through holes are connected with the sliding rod (2642) in a sliding fit mode, the inner side of the sliding rod (2642) is connected with the screen frame (2641), the sliding rod (2642) is provided with the connecting spring (2643), the outer side of the sliding rod (2642) is provided with a sliding block, the sliding block is connected with the wire groove (2644) in a sliding fit mode, the wire groove (2644) is arranged on the fixing frame (261), the wire groove (2644) is of a waveform structure, and the wire groove (2644) of the waveform structure drives the screen frame (2641) to reciprocate through the sliding rod (2642).
2. The tunnel kiln waste gas purification treatment system as claimed in claim 1, wherein: rabbling mechanism (25) including feed liquor pipe (251) and puddler (252), rotating tube (24) lower extreme install feed liquor pipe (251), feed liquor pipe (251) cross-section is tubaeform structure, evenly be provided with puddler (252) in the sealed intracavity, install on rotating tube (24) puddler (252), evenly be provided with back the shape hole on puddler (252).
3. The tunnel kiln waste gas purification treatment system as claimed in claim 1, wherein: atomizing mechanism (27) include connecting rod (271), atomizer (272) and scraper blade (273), rotating tube (24) on evenly be provided with connecting rod (271), evenly install atomizer (272) on connecting rod (271) the opposite face, install scraper blade (273) between connecting rod (271) the outside.
4. The tunnel kiln waste gas purification treatment system as claimed in claim 1, wherein: the filtering mechanism (28) comprises a filtering rack (281), a filtering net (282) and a bearing seat (283), the filtering rack (281) is installed at the upper end inside the shell frame (21), the bearing seat (283) is installed in the middle of the filtering rack (281), the bearing seat (283) is connected with the rotating pipe (24), filtering holes are evenly formed in the filtering rack (281), and the filtering net (282) is filled inside the filtering rack (281).
5. The tunnel kiln waste gas purification treatment system as claimed in claim 1, wherein: the section of the air outlet frame (265) is of a trapezoid structure, air outlet holes are uniformly formed in the air outlet frame (265), and the air outlet holes are communicated with the inside of the fixing frame (261).
6. The tunnel kiln waste gas purification treatment system as claimed in claim 3, wherein: the scraper (273) be the arc structure, scraper (273) are hard corrosion-resistant plastics and make, scraper (273) lateral surface and casing frame (21) inner wall hug closely.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011593737.0A CN112843955B (en) | 2020-12-29 | 2020-12-29 | Tunnel cave exhaust purification processing system |
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| CN202011593737.0A CN112843955B (en) | 2020-12-29 | 2020-12-29 | Tunnel cave exhaust purification processing system |
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| CN114471123A (en) * | 2022-03-14 | 2022-05-13 | 范洋洋 | Waste gas treatment equipment that sprays based on waste gas impurity concentration |
| CN114768454B (en) * | 2022-04-29 | 2023-12-12 | 山西华清智创科技股份有限公司 | Multistage concentration treatment device and method for pharmaceutical waste gas in laboratory |
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| CN111359415A (en) * | 2020-03-18 | 2020-07-03 | 陈妹儿 | Industrial production high-temperature flue gas purification treatment method |
| CN111617568B (en) * | 2020-05-08 | 2021-10-01 | 安徽华尔泰化工股份有限公司 | Pretreatment process for preparing industrial concentrated sulfuric acid |
| CN111729436A (en) * | 2020-07-02 | 2020-10-02 | 梁宏辉 | Environment-friendly efficient waste gas treatment system for glass processing |
| CN111604265B (en) * | 2020-07-08 | 2022-12-16 | 王存 | Flour production and processing technology |
| CN111939727A (en) * | 2020-08-26 | 2020-11-17 | 定远县永发装饰工程有限公司 | Industrial flue gas purification and decomposition furnace |
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