A coking furnace flue gas purification device

Abstract

The present application relates to the field of coking flue gas purification, and particularly relates to a coking furnace flue gas purification device, which comprises a lapping ground plate and a stirring flocculation cylinder fixedly installed on the top outer surface of the lapping ground plate, a atmospheric pollution liquid discharge tank is fixedly installed on the bottom surface of the lapping ground plate, a flocculation and caking backflow pipe arranged on the bottom surface of the stirring flocculation cylinder is fixedly connected to the input end of the atmospheric pollution liquid discharge tank, and a flocculation agent conveying tank is arranged on the top surface of the lapping ground plate. The combined flocculation agent conveying tank is used to infuse the chemical agent and water for flocculation and sedimentation into the stirring flocculation cylinder, so that the agent and water can fill the inside of the stirring flocculation cylinder. At this time, the coking furnace flue gas is infused into the inside of the stirring flocculation cylinder. When the waste gas starts to float from the bottom of the chemical agent, the stirring blade plates are stirred by the combined motor two, so that the waste gas and the chemical agent are fully mixed and stirred together.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of coking flue gas purification, and particularly relates to a coking furnace flue gas purification device. BACKGROUND

[0002] Atmospheric pollutants can be divided into two categories according to their state: one is aerosol state pollutants, and the other is gaseous state pollutants; if classified according to the formation process, they can be divided into primary pollutants and secondary pollutants. Primary pollutants refer to pollutants directly discharged from pollution sources, and secondary pollutants are new pollutants formed by chemical reaction or photochemical reaction of primary pollutants, which are completely different from the physical and chemical properties of primary pollutants, and are more toxic than primary pollutants. Atmospheric pollutants include not only small particulate pollutants such as dust, smoke and fog, but also gaseous pollutants such as sulfur dioxide and carbon monoxide.

[0003] The air filter equipment disclosed by the application is easy to clean, and comprises a primary dust removal barrel, a control device and a secondary filter box. The control device is detachably connected with the box body, a connector one is arranged at the bottom of the control device, a connector two is arranged on the surface of the box body, the connector two is connected with the fan, the primary dust removal barrel, the control device and the secondary filter box are all independent modules, and are detachably connected. In particular, the control device is independently packaged, and will not be in contact with the gas during the air filtering process, so that dust in the filtering process can be prevented from entering the control device, and the inside of the control device can be kept clean. In addition, the primary dust removal barrel and the secondary filter box can be separated and cleaned separately during cleaning, the control device can be prevented from being in contact with water, and the control device is very convenient to disassemble and assemble. In addition, the inner shell and the outer shell forming the annular air duct can be cleaned to prevent bacteria from breeding.

[0004] At present, the existing coking furnace flue gas contains a large amount of sulfur dioxide, nitrogen oxides, carbon monoxide and some volatile organic compounds. These impurity waste gases volatilize into the atmosphere, and these substances cannot be effectively naturally settled or will cause great harm to the surrounding plants and animals when settling.

[0005] Therefore, the application provides a coking furnace flue gas purification device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: a coking furnace flue gas purification device, comprising a lap ground plate and a stirring flocculation cylinder fixedly installed on the top outer surface of the lap ground plate, a atmospheric pollution liquid discharge tank is fixedly installed on the bottom surface of the lap ground plate, a flocculation block backflow pipe provided on the bottom surface of the stirring flocculation cylinder is fixedly connected to the input end of the atmospheric pollution liquid discharge tank, and a flocculating agent conveying tank is arranged on the top surface of the lap ground plate.

[0008] A motor one is arranged on one side inner wall surface of the atmospheric pollution liquid discharge tank, a downward sliding block is movably sleeved on the inner side wall surface of the atmospheric pollution liquid discharge tank, a threaded rod is fixedly connected to the output end of the motor one and movably sleeved on the outer side surface of the downward sliding block, an elastic strip is fixedly connected to the top surface of the downward sliding block, a baffle two is fixedly connected to one end of the elastic strip, an opening is formed in the bottom surface of the downward sliding block, and a filter screen is fixedly connected to the inner side wall surface of the opening.

[0009] A motor two is fixedly installed on the two side surfaces of the stirring flocculation cylinder, a stirring blade plate is arranged on the output end of the motor two, and a one-way discharge valve pipe is fixedly installed on the top two side edge positions of the stirring flocculation cylinder.

[0010] Preferably, a baffle three movably attached to the inner side wall surface of the stirring flocculation cylinder is fixedly connected to the output end of the motor two, and the two side surfaces of the stirring blade plate are fixedly connected to the outer side surface of the baffle three.

[0011] Preferably, a gas guide pipe and a flocculation block backflow pipe are fixedly installed on the bottom surface of the stirring flocculation cylinder on the two sides respectively, one end of the flocculation block backflow pipe is fixedly connected to the outer side surface of the atmospheric pollution liquid discharge tank, and the other end of the gas guide pipe is fixedly installed with a waste gas conveying valve arranged on the bottom surface of the lap ground plate.

[0012] Preferably, a flow guide pipe is fixedly connected to one end of the atmospheric pollution liquid discharge tank and arranged on the input end of the waste gas conveying valve, a medicine guide pipe is fixedly connected to the output end of the flocculating agent conveying tank, and the other end of the medicine guide pipe is fixedly connected to the top surface of the stirring flocculation cylinder.

[0013] Preferably, a plurality of groups of inward recesses are formed in the two side inner wall surfaces of the atmospheric pollution liquid discharge tank, the positions of the motor one, the downward sliding block and the threaded rod are arranged on the inner side wall surfaces of the plurality of groups of inward recesses, a feeding pipe opening is arranged on the bottom edge position of one side of the atmospheric pollution liquid discharge tank, one end of the flocculation block backflow pipe is sleeved with the inner side wall surface of the feeding pipe opening, a water outlet is arranged on the top edge position of the atmospheric pollution liquid discharge tank, one end of the flow guide pipe is movably sleeved on the inner side wall surface of the water outlet, and a baffle is arranged on the inner side wall surface of the downward sliding block and located on the side edge position of the opening.

[0014] Preferably, the top surface of the lap joint ground plate is symmetrically fixed with a ground base at both side edge positions, the top surface of the ground base is provided with an atmospheric pollution desulfurization purification tank, the top surface of the lap joint ground plate is fixed with a motor three, and the output end of the motor three extends to the inner side wall surface of the bottom of the ground base, the output end of the motor three is fixedly connected with a rotating sleeve, and the inner side wall surface of the rotating sleeve is fixedly connected with a stirring blade.

[0015] Preferably, one side surface of the rotating sleeve is provided with a notch, the inner side wall surface of the atmospheric pollution desulfurization purification tank is fixedly connected with an atomizing plate at the bottom edge position, the top center wall surface of the atomizing plate is fixedly connected with a conical flow guide cylinder, and the inner side wall surface of the atmospheric pollution desulfurization purification tank is fixedly connected with an atomizing baffle at the top edge position of the conical flow guide cylinder.

[0016] Preferably, the top inner side wall surface of the atmospheric pollution desulfurization purification tank is fixedly connected with an atomizing spray head at one side edge position, the outer side surface of the atmospheric pollution desulfurization purification tank is fixedly connected with a backflow water pipe at the top edge position of the atomizing plate, and the outer side surface of the backflow water pipe is provided with a one-way water pump.

[0017] Preferably, the other end of the backflow water pipe extends to the inner side wall surface of the atomizing spray head, the outer side surface of the atmospheric pollution desulfurization purification tank is fixedly connected with a sewage backflow pipe, and the two ends of the sewage backflow pipe extend to the top of the atomizing spray head and the outer side edge position of the rotating sleeve, respectively.

[0018] Preferably, the inside of the atmospheric pollution desulfurization purification tank is provided with a sewage line at the middle position of the conical flow guide cylinder, and the top outer side surface of the atmospheric pollution desulfurization purification tank is provided with an exhaust pipe.

[0019] The beneficial effects of the present application are as follows:

[0020] 1. The coking furnace flue gas purification device disclosed in the present application cooperates with the coagulation agent conveying box to convey the coagulation and flocculation chemical agent and clean water into the stirring coagulation and flocculation cylinder, so that the chemical agent and clean water can fill the inside of the stirring coagulation and flocculation cylinder, at this time, the coking furnace flue gas is conveyed into the inside of the stirring coagulation and flocculation cylinder, at this time, when the waste gas starts to float from the bottom of the chemical agent, the stirring blade is stirred by cooperating with the motor two, so that the waste gas and the chemical agent are fully mixed and stirred together, at this time, the solid substances and water-soluble substances in the waste gas are coagulated and flocculated to form lumps, which are differentiated to have the effect of separating the lumps.

[0021] 2. The coking furnace flue gas purification device of the present invention discharges the pre-purified waste gas through a one-way discharge valve pipe. The flocculated agglomerates will gradually settle inside the stirring flocculation cylinder. Under the rotation of the stirring blades, the large flocculation agglomerates are broken into small flocculation agglomerates. At this time, the flocculation agglomerate return pipe absorbs the flocculated agglomerates and some of the reagents at the bottom of the stirring flocculation cylinder and pours them into the interior of the atmospheric pollution discharge tank. The flocculated agglomerates and reagents will initially accumulate at the bottom of the pressing slider. At this time, the motor rotates a pair of threaded rods, and the pressing slider presses down on the surface of the threaded rods, thereby squeezing out the flocculated wastewater.

[0022] 3. In the coking furnace flue gas purification device of the present invention, as the lowering slider is continuously pressed down, the filter screen on the inner wall of the opening will pressurize and filter the flocculated particles. After the reagent and wastewater are squeezed and filtered, the screw rod will lift the lowering slider in the opposite direction, causing the lowering slider to move away from the flattened flocculated particles. The elastic strip will push the second baffle in the opposite direction, thereby restoring the shape of the filter screen to elasticity. At this time, after the two second baffles are opened smoothly, the narrow gap between the two second baffles will reduce the backflow of reagent wastewater. Under the lifting of the lowering slider, the wastewater will be pumped into the interior of the stirring flocculation cylinder through the drain outlet, thereby effectively reducing the accumulation of flocculated particles inside the stirring flocculation cylinder.

[0023] 4. In the coking furnace flue gas purification device of the present invention, when the rotating sleeve rotates, the stirring blades inside the rotating sleeve will turn over the purification liquid inside the atmospheric pollution desulfurization purification tank and break up the waste gas mass that enters the atmospheric pollution desulfurization purification tank in sequence, thereby increasing the mixing efficiency between the waste gas and the purification liquid. As the waste gas rises inside the purification liquid, the waste gas will pass through the atomizing plate for secondary crushing and secondary filtration of the residual impurities inside the waste gas mass. Because the stirring blades will generate a self-rotating vortex at the bottom of the atomizing plate when they turn over inside the atmospheric pollution desulfurization purification tank, the rapid flow of water will scrape off the impurities adhering to the bottom surface of the atomizing plate, thereby effectively reducing the blockage caused by impurities adhering to the bottom surface of the atomizing plate and reducing the effect of subsequent waste gas filtration. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a perspective view of the present invention;

[0026] Figure 2 This is a three-dimensional cross-sectional view of the stirring flocculation cylinder and the atmospheric pollution desulfurization purification tank in this invention;

[0027] Figure 3It is the atmospheric pollution desulfurization purification tank sectional view in the application;

[0028] Figure 4 It is the lap joint ground board perspective view in the application;

[0029] Figure 5 It is the stirring flocculation cylinder sectional view in the application;

[0030] Figure 6 It is the lap joint ground board bottom perspective view in the application;

[0031] Figure 7 It is the atmospheric pollution liquid discharge tank sectional view in the application;

[0032] Figure 8 It is the down pressure slider sectional view in the application.

[0033] In the figure: 11, lap joint ground board; 111, waste gas conveying valve; 112, gas guide pipe; 113, flocculation block backflow pipe; 114, atmospheric pollution liquid discharge tank; a1, feed pipe opening; a2, recess; a3, motor one; a4, threaded rod; a5, down pressure slider; a6, drain opening; a7, baffle; a8, opening; a9, elastic strip; a10, baffle two; a11, filter screen; 115, flocculation agent conveying tank; 116, medicine guide pipe; 12, stirring flocculation cylinder; 121, one-way discharge valve pipe; 122, motor two; 123, baffle three; 124, stirring blade plate; 13, ground base; 131, atmospheric pollution desulfurization purification tank; 132, motor three; 133, rotating sleeve; 134, stirring blade; 135, atomization plate; 136, conical drainage cylinder; 137, atomization baffle; 138, atomization spray head; 139, sewage backflow pipe; 1310, backflow water pipe; 1311, one-way water pump; 1312, sewage line; 1313, exhaust pipe. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in combination with specific embodiments.

[0035] As Figures 1-2 and Figures 4-8 shown, the coking furnace flue gas purification device of the embodiment of the application includes a lap joint ground board 11 and a stirring flocculation cylinder 12 fixedly installed on the top outer surface of the lap joint ground board 11, and the bottom surface of the lap joint ground board 11 is fixedly installed with an atmospheric pollution liquid discharge tank 114, the input end of the atmospheric pollution liquid discharge tank 114 is fixedly connected with a flocculation block backflow pipe 113 arranged on the bottom surface of the stirring flocculation cylinder 12, and the top surface of the lap joint ground board 11 is provided with a flocculation agent conveying tank 115;

[0036] The inner wall surface of one side of the atmospheric pollution liquid discharge tank 114 is provided with a motor one a3, and the inner wall surface of the atmospheric pollution liquid discharge tank 114 movably sleeves a lower pressing sliding block a5. The output end of the motor one a3 is fixedly connected with a threaded rod a4 which is movably sleeved on the outer side surface of the lower pressing sliding block a5. The top surface of the lower pressing sliding block a5 is fixedly connected with an elastic strip a9, and one end of the elastic strip a9 is fixedly connected with a baffle two a10. The bottom surface of the lower pressing sliding block a5 is provided with an opening a8, and the inner wall surface of the opening a8 is fixedly connected with a filter screen a11.

[0037] The two side surfaces of the stirring flocculation cylinder 12 are fixedly installed with a motor two 122, and the output end of the motor two 122 is provided with a stirring blade plate 124. The top two side edge positions of the stirring flocculation cylinder 12 are fixedly installed with a one-way discharge valve pipe 121.

[0038] The combined medicament and water for flocculation and sedimentation are injected into the stirring flocculation cylinder 12 through the priority matching flocculant conveying tank 115, so that the medicament and water can fill the inside of the stirring flocculation cylinder 12. At this time, the coking furnace flue gas is injected into the inside of the stirring flocculation cylinder 12. When the waste gas starts to float from the bottom of the combined medicament, the stirring blade plate 124 is stirred by the motor two 122, so that the waste gas and the combined medicament are fully mixed and stirred together. At this time, the solid substances and water-soluble substances in the waste gas are agglomerated into groups under the flocculation of the combined medicament, which can differentiate the effects;

[0039] The preliminarily purified waste gas is discharged through the one-way discharge valve pipe 121. The flocculated and grouped substances gradually settle in the stirring flocculation cylinder 12, and under the rotation of the stirring blade plate 124, the large flocculation groups are broken to form small flocculation groups. At this time, the bottom layer of the stirring flocculation cylinder 12 is absorbed by the flocculation and grouping backflow pipe 113, and the flocculated groups and part of the medicament are injected into the inside of the atmospheric pollution liquid discharge tank 114. The flocculation groups and the medicament are preliminarily accumulated at the bottom of the lower pressing sliding block a5. At this time, the threaded rod a4 is rotated by the motor one a3, and the lower pressing sliding block a5 is pressed on the surface of the threaded rod a4, so as to extrude and filter the flocculated sewage;

[0040] With the lower pressure slider a5 constantly down, the filter screen a11 on the inside wall of the opening a8 will be pressed to filter the condensed floc, after the medicine and wastewater extrusion filter, the screw rod a4 is matched with the lower pressure slider a5 to lift up, and make the lower pressure slider a5 move away from the condensed floc, and make the elastic strip a9 push the baffle two a10 reversely, and then the shape of the filter screen a11 is elastically deformed, and at this time, the two baffle two a10 are opened stably, the narrow gap between the two baffle two a10 is used to reduce the backflow of the medicine wastewater, and under the lifting of the lower pressure slider a5, the wastewater is pumped into the inside of the stirring condensed floc cylinder 12 through the drain a6, thereby effectively reducing the effect of the condensed floc accumulation in the stirring condensed floc cylinder 12.

[0041] As Figure 1 , Figure 4 and Figures 6-7 shown, the bottom surface of the stirring condensed floc cylinder 12 is fixedly installed with a gas guide pipe 112 and a condensed floc block reflux pipe 113 on both sides, and one end of the condensed floc block reflux pipe 113 is fixedly connected to the outside surface of the atmospheric pollution liquid discharge tank 114, the other end of the gas guide pipe 112 is fixedly installed with a waste gas conveying valve 111 arranged on the bottom surface of the lap joint base plate 11, one end of the atmospheric pollution liquid discharge tank 114 is fixedly connected with a flow guide pipe arranged on the input end of the waste gas conveying valve 111, the output end of the condensed floc agent conveying tank 115 is fixedly connected with a medicine guide pipe 116, and the other end of the medicine guide pipe 116 is fixedly connected to the top surface of the stirring condensed floc cylinder 12.

[0042] The waste gas conveying valve 111 and the gas guide pipe 112 are used to unidirectionally pump the waste gas into the inside of the stirring condensed floc cylinder 12, so that the waste gas is mixed with the medicine in the stirring condensed floc cylinder 12, the impurity tar in the waste gas is agglomerated, and then the condensed floc agglomerates are pumped into the inside of the atmospheric pollution liquid discharge tank 114 through the condensed floc block reflux pipe 113, and then the atmospheric pollution liquid discharge tank 114 is used to compact the condensed floc agglomerates, and the wastewater backflow of the condensed floc agglomerates is pumped into the inside of the stirring condensed floc cylinder 12, thereby effectively reducing the effect of the impurities and condensed floc agglomerates in the stirring condensed floc cylinder 12.

[0043] As Figure 4 and Figures 7-8As shown, the inner wall surface of the atmospheric pollution liquid discharge tank 114 is provided with a plurality of groups of recesses a2, the motor a3, the lower pressing sliding block a5 and the threaded rod a4 are respectively arranged on the inner side wall surface of the plurality of groups of recesses a2, the atmospheric pollution liquid discharge tank 114 is provided with a feeding pipe a1 at the bottom edge position of one side, one end of the condensed flocculation block reflux pipe 113 is connected to the inner side wall surface of the feeding pipe a1, the atmospheric pollution liquid discharge tank 114 is provided with a water outlet a6 at the top edge position, one end of the flow guide pipe is movably connected to the inner side wall surface of the water outlet a6, and the inner side wall surface of the lower pressing sliding block a5 is provided with a baffle a7 at the side edge position of the opening a8.

[0044] When the motor a3 rotates the threaded rod a4 to drive the lower pressing sliding block a5 to move up and down, the recess a2 limits the position of the lower pressing sliding block a5, so that the lower pressing sliding block a5 can only move vertically up and down, and the condensed flocculation block can be plastic processed during extrusion.

[0045] As shown in the figure, Figures 1-3 The top surface of the lap joint ground plate 11 is symmetrically fixed and installed with a ground base 13 at the two side edge positions, the top surface of the ground base 13 is provided with an atmospheric pollution desulfurization purification tank 131, the top surface of the lap joint ground plate 11 is fixedly installed with a motor three 132, and the output end of the motor three 132 extends to the bottom inner side wall surface of the ground base 13, the output end of the motor three 132 is fixedly connected with a rotating sleeve 133, the inner side wall surface of the rotating sleeve 133 is fixedly connected with a stirring blade 134, a notch is formed in the side surface of the rotating sleeve 133, the inner side wall surface of the atmospheric pollution desulfurization purification tank 131 is fixedly connected with an atomizing plate 135 at the bottom edge position, the top center wall surface of the atomizing plate 135 is fixedly connected with a conical drainage cylinder 136, the inner side wall surface of the atmospheric pollution desulfurization purification tank 131 is fixedly installed with an atomizing baffle 137 at the top edge position of the conical drainage cylinder 136, the top inner side wall surface of the atmospheric pollution desulfurization purification tank 131 is fixedly installed with an atomizing spray head 138 at the side edge position, the outer side surface of the atmospheric pollution desulfurization purification tank 131 is fixedly installed with a reflux water pipe 1310 at the top edge position of the atomizing plate 135, the outer side surface of the reflux water pipe 1310 is provided with a one-way water pump 1311, the other end of the reflux water pipe 1310 extends to the inner side wall surface of the atomizing spray head 138, the outer side surface of the atmospheric pollution desulfurization purification tank 131 is fixedly installed with a sewage reflux pipe 139, the two ends of the sewage reflux pipe 139 respectively extend to the top of the atomizing spray head 138 and the outer side edge position of the rotating sleeve 133, the inside of the atmospheric pollution desulfurization purification tank 131 is provided with a sewage line 1312 at the middle position of the conical drainage cylinder 136, and the top outer side surface of the atmospheric pollution desulfurization purification tank 131 is provided with an exhaust pipe 1313.

[0046] When the exhaust gas is injected into the atmosphere pollution desulfurization and purification tank 131 through the one-way exhaust valve pipe 121, the motor three 132 rotates the rotating sleeve 133. When the gap on the outer surface of the rotating sleeve 133 passes through the input end of the one-way exhaust valve pipe 121, the gap injects the exhaust gas in the one-way exhaust valve pipe 121 into the atmosphere pollution desulfurization and purification tank 131. The rotating sleeve 133 can control the delivery amount of exhaust gas to a certain extent, avoiding the exhaust gas from being injected in a large amount at one time, which leads to incomplete mixing between the exhaust gas and the purification liquid, resulting in ineffective purification of a part of the exhaust gas.

[0047] When the rotating sleeve 133 rotates, the stirring blades 134 inside the rotating sleeve 133 stir the purification liquid in the atmosphere pollution desulfurization and purification tank 131 and break the exhaust gas entering the atmosphere pollution desulfurization and purification tank 131 in sequence, increasing the mixing efficiency between the exhaust gas and the purification liquid. As the exhaust gas rises in the purification liquid, it passes through the atomizing plate 135 for secondary breaking and performs secondary filtration on the residual impurities in the exhaust gas. When the stirring blades 134 stir in the atmosphere pollution desulfurization and purification tank 131, a vortex is generated at the bottom of the atomizing plate 135. The rapid flow of water source can remove the impurities adhering to the bottom surface of the atomizing plate 135, effectively reducing the blockage of the bottom surface of the atomizing plate 135 and improving the subsequent exhaust gas filtration effect.

[0048] As the exhaust gas spreads along the sewage line 1312, it accumulates in the atmosphere pollution desulfurization and purification tank 131 and diffuses in all directions under the guidance of the conical drainage cylinder 136. At this time, the one-way water pump 1311 absorbs the purification liquid in the atmosphere pollution desulfurization and purification tank 131 and injects it into the atomizing spray head 138 through the backflow pipe 1310. The atomizing spray head 138 sprays the purification liquid in the form of mist, increases the contact between the water curtain formed by the mist and the rising exhaust gas, and improves the secondary purification effect of the exhaust gas.

[0049] Working principle: The combined flocculation agent conveying box 115 injects the combined medicament and water for flocculation and sedimentation into the stirring flocculation cylinder 12, so that the medicament and water can fill the inside of the stirring flocculation cylinder 12. At this time, the coking furnace flue gas is injected into the stirring flocculation cylinder 12. When the exhaust gas starts to float from the bottom of the combined medicament, the motor two 122 stirs the stirring blade plate 124, so that the exhaust gas and the combined medicament are fully mixed and stirred together. At this time, the solid substances and water-soluble substances in the exhaust gas are separated into lumps under the flocculation of the combined medicament.

[0050] The pre-purified waste gas is discharged through the one-way discharge valve pipe 121. The flocculated agglomerates will gradually settle inside the mixing and flocculating cylinder 12. Under the rotation of the mixing blade 124, the large flocculated agglomerates are broken into small flocculated agglomerates. At this time, the flocculation agglomerate return pipe 113 absorbs the flocculated agglomerates and some of the agents at the bottom of the mixing and flocculating cylinder 12 and pours them into the interior of the atmospheric pollution discharge tank 114. The flocculated agglomerates and agents will initially accumulate at the bottom of the pressing slider a5. Then, the motor a3 rotates the threaded rod a4 and the pressing slider a5 presses down on the surface of the threaded rod a4 to squeeze out the flocculated wastewater.

[0051] As the sliding block a5 continues to press down, the filter screen a11 on the inner wall of the opening a8 will pressurize and filter the flocculated material. After the chemicals and wastewater are squeezed and filtered, the threaded rod a4 will lift the sliding block a5 in the opposite direction, causing the sliding block a5 to move away from the flattened flocculated material. This will cause the elastic strip a9 to push the second baffle a10 in the opposite direction, thereby restoring the shape of the filter screen a11. At this time, after the two baffles a10 are opened smoothly, the narrow gap between the two baffles a10 will reduce the backflow of the chemical wastewater. With the lifting of the sliding block a5, the wastewater will be pumped into the interior of the stirring flocculation cylinder 12 through the drain outlet a6, thereby effectively reducing the accumulation of flocculated material inside the stirring flocculation cylinder 12.

[0052] When exhaust gas is pumped into the desulfurization purification tank 131 through the one-way discharge valve pipe 121, the rotating sleeve 133 is rotated in conjunction with the motor 132. When the notch on the outer surface of the rotating sleeve 133 passes the input end of the one-way discharge valve pipe 121, the exhaust gas inside the one-way discharge valve pipe 121 is pumped into the desulfurization purification tank 131 through the notch. The rotating sleeve 133 can control the amount of exhaust gas transported to a certain extent, so as to avoid the large amount of exhaust gas pumped at one time, which would result in insufficient mixing between the exhaust gas and the purification liquid, and thus some exhaust gas would not be effectively purified.

[0053] When the rotating sleeve 133 rotates, the stirring blades 134 inside the rotating sleeve 133 will overturn the purification liquid in the atmospheric pollution desulfurization tank 131 and break the waste gas groups entering the atmospheric pollution desulfurization tank 131 in sequence, increasing the mixing efficiency between the waste gas and the purification liquid. As the waste gas rises in the purification liquid, the waste gas will pass through the atomizing plate 135 for secondary breaking treatment, and the residual impurities in the waste gas group will be subjected to secondary filtration treatment. Since the stirring blades 134 overturn in the atmospheric pollution desulfurization tank 131, a self-rotating vortex is generated at the bottom of the atomizing plate 135. The rapid flow of water will remove the impurities adhering to the bottom surface of the atomizing plate 135, thereby effectively reducing the blockage of the bottom surface of the atomizing plate 135 caused by the adhesion of impurities, and reducing the subsequent waste gas filtration effect.

[0054] As the waste gas spreads through the sewage line 1312, the waste gas will accumulate in the atmospheric pollution desulfurization tank 131 and diffuse in all directions under the guidance of the conical drainage cylinder 136. At this time, the one-way water pump 1311 absorbs the purification liquid in the atmospheric pollution desulfurization tank 131 and injects it into the inside of the atomizing spray head 138 through the backflow pipe 1310. The atomizing spray head 138 sprays the purification liquid in the form of atomization, and the water curtain formed by the water mist increases the contact with the rising waste gas, thereby increasing the effect of secondary purification of the waste gas.

[0055] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A coking furnace flue gas purification device, comprising a lapping base plate (11) and a stirring flocculation cylinder (12) fixedly installed on the top outer side surface of the lapping base plate (11), characterized in that: The bottom surface of the lap joint ground plate (11) is fixedly provided with an atmospheric pollution liquid discharge tank (114), the input end of the atmospheric pollution liquid discharge tank (114) is fixedly connected with a flocculation lump backflow pipe (113) arranged on the bottom surface of the stirring flocculation cylinder (12), and the top surface of the lap joint ground plate (11) is provided with a flocculation agent conveying tank (115); The inner wall surface of one side of the atmospheric pollution liquid discharge tank (114) is provided with a motor one (a3), the inner side wall surface of the atmospheric pollution liquid discharge tank (114) is movably sleeved with a pressing sliding block (a5), the output end of the motor one (a3) is fixedly connected with a threaded rod (a4) movably sleeved on the outer side surface of the pressing sliding block (a5), the top surface of the pressing sliding block (a5) is fixedly connected with an elastic strip (a9), one end of the elastic strip (a9) is fixedly connected with a baffle two (a10), and the bottom surface of the pressing sliding block (a5) is provided with an opening (a8); the inner side wall surface of the opening (a8) is fixedly connected with a filter screen (a11); The two side surfaces of the stirring flocculation cylinder (12) are fixedly provided with a motor two (122), the output end of the motor two (122) is provided with a stirring blade plate (124), and the top two side edge positions of the stirring flocculation cylinder (12) are fixedly provided with a one-way discharge valve pipe (121); and the top edge position of the atmospheric pollution liquid discharge tank (114) is provided with a water outlet (a6). The preliminarily purified waste gas is discharged through the one-way discharge valve pipe (121), the flocculated lumped substances gradually settle in the stirring flocculation cylinder (12), the flocculated lumps and part of the reagents in the atmospheric pollution liquid discharge tank (114) are absorbed through the flocculation lump backflow pipe (113), the flocculation lumps and the reagents are preliminarily stacked at the bottom of the pressing sliding block (a5), the threaded rod (a4) is rotated through the motor one (a3), and the pressing sliding block (a5) is pressed on the surface of the threaded rod (a4) to extrude and filter the flocculated sewage; When the pressing sliding block (a5) is continuously pressed, the filter screen (a11) on the inner side wall surface of the opening (a8) performs pressure filtering treatment on the flocculation, after the reagents and the sewage are extruded and filtered, the pressing sliding block (a5) is reversely lifted through the threaded rod (a4), the pressing sliding block (a5) is moved away from the flattened flocculation lumps, the elastic strip (a9) reversely pushes the baffle two (a10), the shape of the filter screen (a11) is reversely plastically treated, and the two baffle two (a10) are stably opened, the small gap between the two baffle two (a10) reduces the reagent wastewater return amount, and the wastewater is pumped into the stirring flocculation cylinder (12) through the water outlet (a6) under the lifting of the pressing sliding block (a5), thereby effectively reducing the flocculation lump stacking in the stirring flocculation cylinder (12).

2. A coking furnace flue gas cleaning device according to claim 1, characterized in that: The output end of the motor two (122) is fixedly connected with a baffle three (123) movably attached to the inner side wall of the stirring flocculation cylinder (12), and the two side surfaces of the stirring blade (124) are fixedly connected to the outer side surface of the baffle three (123).

3. A coking furnace flue gas cleaning device according to claim 2, characterized in that: The bottom surface of the stirring flocculation cylinder (12) is fixedly installed with a gas guide pipe (112) and a flocculation lump backflow pipe (113) on the two sides respectively, one end of the flocculation lump backflow pipe (113) is fixedly connected to the outer side surface of the atmospheric pollution liquid discharge tank (114), and the other end of the gas guide pipe (112) is fixedly installed with a waste gas conveying valve (111) arranged on the bottom surface of the lap joint ground plate (11).

4. A coking furnace flue gas cleaning device according to claim 3, characterized in that: One end of the atmospheric pollution liquid discharge tank (114) is fixedly connected with a flow guide pipe arranged on the input end of the waste gas conveying valve (111), the output end of the flocculation agent conveying tank (115) is fixedly connected with a medicine guide pipe (116), and the other end of the medicine guide pipe (116) is fixedly connected to the top surface of the stirring flocculation cylinder (12).

5. A coking furnace flue gas cleaning device according to claim 4, characterized in that: A plurality of groups of recessed grooves (a2) are formed in the inner side walls of the atmospheric pollution liquid discharge tank (114), the positions of the motor one (a3), the pressing sliding block (a5) and the threaded rod (a4) are arranged on the inner side walls of the plurality of groups of recessed grooves (a2), a feeding pipe (a1) is arranged on the bottom edge of one side of the atmospheric pollution liquid discharge tank (114), one end of the flocculation lump backflow pipe (113) is sleeved with the inner side wall of the feeding pipe (a1), one end of the flow guide pipe is movably sleeved on the inner side wall of the drain port (a6), and the inner side wall of the pressing sliding block (a5) and located on one side edge of the opening (a8) is provided with a baffle (a7).

6. A coking furnace flue gas cleaning device according to claim 5, characterized in that: The top surface of the lap joint ground plate (11) and located on the two side edge positions are symmetrically fixedly installed with a ground base (13), the top surface of the ground base (13) is provided with an atmospheric pollution desulfurization purification tank (131), the top surface of the lap joint ground plate (11) is fixedly installed with a motor three (132), and the output end of the motor three (132) extends to the bottom inner side wall of the ground base (13), the output end of the motor three (132) is fixedly connected with a rotating sleeve (133), and the inner side wall of the rotating sleeve (133) is fixedly connected with a stirring blade (134).

7. A coking furnace flue gas cleaning device according to claim 6, characterized in that: One side surface of the rotating sleeve (133) is provided with a notch, the inner side wall of the atmospheric pollution desulfurization purification tank (131) and located on the bottom edge position is fixedly connected with an atomizing plate (135), the top center wall of the atomizing plate (135) is fixedly connected with a conical flow guide cylinder (136), and the inner side wall of the atmospheric pollution desulfurization purification tank (131) and located on the top edge position of the conical flow guide cylinder (136) is fixedly installed with an atomizing baffle (137).

8. A coking furnace flue gas cleaning device according to claim 7, characterized in that: The atomizing spray head (138) is fixedly installed on the inner side wall of the top of the atmospheric pollution desulfurization purification tank (131) and located at the side edge position. The backflow water pipe (1310) is fixedly installed on the outer side surface of the atmospheric pollution desulfurization purification tank (131) and located at the top edge position of the atomizing plate (135). The outer side surface of the backflow water pipe (1310) is provided with the one-way water pump (1311).

9. A coking furnace flue gas cleaning device according to claim 8, characterized in that: The other end of the backflow water pipe (1310) extends to the inner side wall of the atomizing spray head (138). The sewage backflow pipe (139) is fixedly installed on the outer side surface of the atmospheric pollution desulfurization purification tank (131) and extends to the top of the atomizing spray head (138) and the outer side edge position of the rotating sleeve (133) respectively.

10. A coking furnace flue gas cleaning device according to claim 9, characterized in that: The sewage line (1312) is arranged in the atmospheric pollution desulfurization purification tank (131) and located at the middle position of the conical flow guide cylinder (136). The exhaust pipe (1313) is arranged on the top outer side surface of the atmospheric pollution desulfurization purification tank (131).

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