A desulfurization absorption tower slurry circulating pump inlet mixer

Abstract

The application provides a novel desulfurization absorption tower slurry circulating pump inlet mixer, and relates to the technical field of electric power, which comprises a desulfurization absorption tower, a bottom plate, a cleaning pool and a synergistic cavity, and a clean gas outlet groove is fixedly installed on the top of the outer surface of the desulfurization absorption tower. The application is characterized in that the desulfurization absorption tower, the bottom plate, the synergistic cavity, the slurry pipe and the synergistic liquid pipe are cooperated, a pipeline group for mixing of desulfurization synergistic agent is additionally arranged in the desulfurization absorption tower, the pipeline group cooperates with the slurry pipe for inputting slurry to form a mixer, the pipeline group comprises a plurality of synergistic liquid pipes, one end of the plurality of synergistic liquid pipes is connected to one end of the liquid inlet pipe through a connecting elbow, a T-shaped female pipe and a first flange pipe, and is used for pumping in the desulfurization synergistic agent, the other end of the plurality of synergistic liquid pipes is connected to the cleaning pool through a plurality of sewage pipes, the slurry is pumped into the plurality of synergistic liquid pipes through the communication inner pipe at the connection position of the slurry pipe and the synergistic liquid pipe, and then the mixing with the desulfurization synergistic agent previously pumped into the synergistic liquid pipe is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power, in particular to a desulfurization absorption tower slurry circulating pump inlet mixer. BACKGROUND

[0002] Through the analysis and research of the domestic power plant desulfurization technology and the domestic power industry introduced desulfurization process pilot plant, the current desulfurization method can be divided into three categories: desulfurization before combustion, desulfurization during combustion and desulfurization after combustion. The method used in domestic power plant for flue gas desulfurization can be divided into: desulfurization before combustion, desulfurization during combustion and desulfurization after combustion. At the same time, it can also be classified according to the dry and wet state of the absorbent and desulfurization product in the desulfurization process. According to the dry and wet state, the desulfurization technology can be divided into wet method, dry method and semi-dry method. The commonly used desulfurization method is gypsum method desulfurization. The specific working principle of gypsum method desulfurization is: limestone powder is added to water to form slurry as absorbent, which is pumped into the absorption tower to fully contact and mix with the flue gas. The sulfur dioxide in the flue gas reacts with calcium carbonate in the slurry and air blown from the lower part of the tower to generate calcium sulfate. When the calcium sulfate reaches a certain saturation degree, it crystallizes to form gypsum. The gypsum slurry discharged from the absorption tower is concentrated and dehydrated to reduce the water content to less than 10%. Then it is sent to the gypsum storage warehouse for stacking by the conveyor. The flue gas after desulfurization passes through the demister to remove droplets, and then passes through the heat exchanger to heat and warm up, and is discharged into the atmosphere through the chimney

[0003] However, in the prior art, before desulfurization by slurry, various desulfurization synergists need to be added to the slurry to improve the desulfurization effect of the slurry. For example, a kind of energy-saving uniform-flow desulfurization absorption tower based on high arrangement is disclosed in Chinese patent application CN111330418A, which includes a slurry collector, an inlet flue, a slurry circulating pump, a support frame, and an absorption tower body fixed on the support frame. From top to bottom, the absorption tower body is provided with a demister, a spraying layer and a boiling layer. The top of the absorption tower body is provided with a flue gas outlet. The inlet of the slurry collector is in communication with the slurry outlet of the absorption tower body. The outlet of the slurry collector is connected with the inlet of the spraying layer through the slurry circulating pump. The inlet flue is connected with the flue gas inlet of the absorption tower body. The flue gas inlet of the absorption tower body is located below the spraying layer. The absorption tower has small land occupation space, small equipment increase, simple flue direction and low operation investment cost.

[0004] Although the above scheme has the advantages as above, the disadvantage of the above scheme is that the traditional desulfurization tower is injected once in the slurry bottom pool according to the current slurry desulfurization effect, and the slurry is directly sprayed by the circulating pump after injection, which leads to that the desulfurization synergist added to the bottom of the slurry pool has not enough time for mixing, reducing the mixing desulfurization effect of the desulfurization synergist, and a small number of additional stirring machines are used to stir the slurry and the desulfurization synergist before spraying, which can improve the mixing degree of the desulfurization synergist and the slurry according to the control of the stirring time, but still needs more preparation time, which leads to that the waste gas cannot be continuously input into the desulfurization tower, reducing the desulfurization efficiency of the desulfurization tower, and therefore a desulfurization absorption tower slurry circulating pump inlet mixer is needed to solve such problems. SUMMARY

[0005] The purpose of the present application is to solve the problem in the prior art that the desulfurization synergist is injected once in the slurry bottom pool according to the current slurry desulfurization effect, reducing the mixing desulfurization effect of the desulfurization synergist, and a small number of additional stirring machines are used to stir the slurry and the desulfurization synergist before spraying, still needing more preparation time, leading to that the waste gas cannot be continuously input into the desulfurization tower, reducing the desulfurization efficiency of the desulfurization tower.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: a desulfurization absorption tower slurry circulating pump inlet mixer, comprising: a desulfurization absorption tower, a bottom plate, a cleaning pool and a synergistic cavity, a clean gas outlet groove is fixedly installed at the top of the outer surface of the desulfurization absorption tower, a flue gas inlet groove is fixedly installed on the outer surface of the desulfurization absorption tower, a speed regulator and a circulating pump are fixedly connected at the top of the outer surface of the bottom plate, the speed regulator and the circulating pump are movably connected, a suction pipe is fixedly embedded at one end of the circulating pump close to the desulfurization absorption tower, the circulating pump is connected with the desulfurization absorption tower through the suction pipe, a bottom pipe is movably embedded at the top of the outer surface of the circulating pump, the bottom pipe is movably embedded in the inside of the desulfurization absorption tower, a plurality of sewage pipes are fixedly connected at the top of the outer surface of the cleaning pool, a pressure pump is fixedly connected at the bottom of the outer surface of the synergistic cavity, a liquid inlet pipe is movably embedded in the inside of the pressure pump, a demister is fixedly installed in the inside of the desulfurization absorption tower, a slurry pipe is movably embedded in the inside of the desulfurization absorption tower, a plurality of synergistic liquid pipes are movably embedded in the inside of the desulfurization absorption tower, a slurry pool is arranged at the bottom of the inside of the desulfurization absorption tower, and a first flange pipe is movably connected at one end of the outer surface of the liquid inlet pipe.

[0007] As a preferred specific embodiment, the inner movable embedding of the first flange pipe is provided with a T-shaped female pipe, the liquid inlet pipe is fixedly sleeved with a liquid inlet valve near one end of the first flange pipe, the inner fixed embedding of the T-shaped female pipe is provided with a plurality of connecting elbows, the connecting elbows are movably connected with the synergistic liquid pipes, and a plurality of the synergistic liquid pipes are fixedly sleeved with blowdown valves at one end close to the cleaning pool.

[0008] The technical effect of the above further scheme is that through the cooperation of a plurality of first flange pipes, T-shaped female pipes and a plurality of connecting elbows, and by adopting a sleeve design, installation and disassembly are more convenient.

[0009] As a preferred specific embodiment, a plurality of the synergistic liquid pipes are divided into two groups on average, and a plurality of spray holes are formed on opposite sides of the two groups of synergistic liquid pipes.

[0010] The technical effect of the above further scheme is that the size of the hole changes from large to small from the middle to the two ends, the smoke concentration is highest at the middle position, and the size of the injection port is correspondingly adjusted to be larger, so as to improve the subsequent flue gas desulfurization effect.

[0011] As a preferred specific embodiment, a plurality of the synergistic liquid pipes are fixedly sleeved with a sleeve ring on the outer surface, and a plurality of the sleeve rings are fixedly connected with an adjusting disc on one side of the outer surface.

[0012] The technical effect of the above further scheme is that a plurality of adjusting discs can be used to switch the blowdown cleaning mode and the desulfurization synergist mixing mode.

[0013] As a preferred specific embodiment, the adjusting disc is movably installed on the outer surface of the synergistic liquid pipe, and a communication shell is movably connected on both sides of the outer surface of the pulp pipe.

[0014] The technical effect of the above further scheme is that the adjusting disc and the synergistic liquid pipe are convenient for subsequent disassembly and maintenance.

[0015] As a preferred specific embodiment, a plurality of the adjusting discs are fixedly embedded with a telescopic column in the inside, and a plurality of the telescopic columns are fixedly connected with a connecting row at one end of the outer surface.

[0016] The technical effect of the above further scheme is that the cooperation of a plurality of telescopic columns and connecting rows can adjust the injection of a plurality of spray holes through the telescopic column, and can disconnect the connection of the pulp pipe and the synergistic liquid pipe.

[0017] As a preferred specific embodiment, a plurality of the connecting rows are fixedly installed with a rack on one side of the outer surface, and a plurality of the adjusting discs are movably embedded with a plurality of nozzles in the inside.

[0018] The technical effect of the further scheme is that the multiple nozzles replace the traditional spraying device, and the internal desulfurization synergist and slurry can be mixed while having the spraying effect.

[0019] As a preferred embodiment, the internal part of each of the multiple adjusting discs is movably embedded with a communication inner tube, and the communication inner tube is fixedly embedded in the internal part of a communication outer shell.

[0020] As a preferred embodiment, the internal part of each of the multiple communication inner tubes and nozzles is rotatably installed with a valve shaft, and the outer surface of each of the multiple valve shafts is fixedly sleeved with a valve plate.

[0021] As a preferred embodiment, one end of the outer surface of each of the multiple valve shafts is fixedly sleeved with a gear, and the gear is meshingly connected with a rack.

[0022] The technical effect of the further scheme is that the meshingly connected gear and rack are adjusted to rotate the gear through the movement of the bottom rack, and then the opening and closing of the spray hole are adjusted.

[0023] Compared with the prior art, the advantages and positive effects of the present application are that,

[0024] 1. The present application, by cooperating the desulfurization absorption tower, the bottom plate, the synergistic cavity, the slurry pipe and the synergistic liquid pipe, the desulfurization absorption tower is additionally provided with a pipeline group for mixing the desulfurization synergist, the pipeline group cooperates with the slurry pipe for inputting the slurry to form a mixer, the pipeline group includes multiple synergistic liquid pipes, one end of the multiple synergistic liquid pipes is connected to one end of the liquid inlet pipe through a connecting elbow, a T-shaped female pipe and a first flange pipe, for pumping the desulfurization synergist, the other end is connected to the cleaning pool through multiple sewage pipes, the slurry is pumped into the internal part of the multiple synergistic liquid pipes through the communication inner tube at the connection position of the slurry pipe and the synergistic liquid pipe, and then the mixing with the desulfurization synergist previously pumped into the internal part of the synergistic liquid pipe is realized, and then the mixed slurry is sprayed through multiple nozzles, at this time, the mixed slurry after spraying is settled again and then pumped into the internal part of the synergistic liquid pipe by the circulating pump through the bottom pipe, and the mixed desulfurization synergist is fully mixed again through the slurry pipe and the synergistic liquid pipe, so that the desulfurization synergist and the slurry are fully mixed and dissolved, and the problem that the desulfurization synergist is added in the slurry bottom pool in the prior art and is injected once according to the current desulfurization effect of the slurry, which reduces the mixing desulfurization effect of the desulfurization synergist, and a small number of additional stirring machines are used to stir the slurry and the desulfurization synergist before spraying, which still needs more preparation time, so that the waste gas cannot be continuously input into the desulfurization tower, and the desulfurization efficiency of the desulfurization tower is reduced.

[0025] 2. The present application, by matching the cleaning tank and the adjusting disc, sets sewage valves at the connecting ends of the sewage pipe and the synergistic liquid pipe for switching the sewage cleaning mode and the desulfurization synergist mixing mode, can disconnect the slurry pipe and the synergistic liquid pipe by the extension and retraction of the internal extension and retraction column of the adjusting disc, simultaneously disconnect the bottom injection of multiple nozzles, directly replace the desulfurization synergist in the synergistic cavity with water flow, directly flush and clean the inside of multiple synergistic liquid pipes after opening the sewage valve rear shell, avoid a small number of flue gas desulfurization crystalline particulate matter from entering the inside of the synergistic liquid pipe from the nozzle after long-term use, and avoid internal blockage.

[0026] 3. The present application, by matching the spray hole and the nozzle, optimizes the hole position and the hole size, the size of the spray hole is large in the middle and small at both ends, the middle position is the highest area of flue gas concentration, and the size of the nozzle injection port is adjusted to be larger correspondingly, so as to improve the subsequent flue gas desulfurization effect.

[0027] 4. The present application, by matching the multiple synergistic liquid pipes and the slurry pipes, simultaneously adopting the sleeve pipe design, the installation and disassembly are more convenient, and the nozzle of the inlet mixer of the new absorption tower circulating pump is countercurrent to the absorption tower slurry flow line, further improving the mixing effect of the slurry and the desulfurization synergist, and the overall design is simple, not only the cost is lower than that of the additional mixer, but also a lot of preparation time is not needed. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is an absorption tower external structure diagram of a slurry circulating pump inlet mixer of a desulfurization absorption tower of the present application;

[0029] Figure 2 It is an absorption tower internal structure diagram of a slurry circulating pump inlet mixer of a desulfurization absorption tower of the present application;

[0030] Figure 3 It is a structure diagram of a mixer liquid inlet position of a slurry circulating pump inlet mixer of a desulfurization absorption tower of the present application;

[0031] Figure 4 It is an internal structure diagram of a mixer liquid inlet device of a slurry circulating pump inlet mixer of a desulfurization absorption tower of the present application;

[0032] Figure 5 It is a mixer pipeline component structure diagram of a slurry circulating pump inlet mixer of a desulfurization absorption tower of the present application;

[0033] Figure 6 It is a slurry circulating pump inlet mixer of a desulfurization absorption tower of the present application Figure 5 An enlarged view of A in the middle;

[0034] Figure 7It is a structural schematic view of a desulfurization absorption tower slurry circulating pump inlet mixer nozzle adjusting device of the present application.

[0035] Figure 8 It is a desulfurization absorption tower slurry circulating pump inlet mixer of the present application Figure 7 The enlarged view of B.

[0036] Legend:

[0037] 1, desulfurization absorption tower; 2, bottom plate; 3, cleaning pool; 4, synergistic cavity; 5, demister; 6, slurry pipe; 7, slurry pool; 8, synergistic liquid pipe; 9, collar; 10, adjusting disc; 101, clean gas outlet groove; 102, flue gas inlet groove; 201, speed regulating machine; 202, circulating pump; 203, bottom pipe; 301, sewage pipe; 401, pressure pump; 402, liquid inlet pipe; 403, liquid inlet valve; 404, first flange pipe; 405, T-shaped female pipe; 406, connecting elbow; 601, communication shell; 801, blowdown valve; 802, spray hole; 1001, telescopic column; 1002, connecting row; 1003, rack; 1004, nozzle; 1005, communication inner pipe; 1006, valve piece; 1007, valve shaft; 1008, gear. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] Please refer to Figures 1-8The application provides a technical scheme: a desulfurization absorption tower slurry circulating pump inlet mixer, which comprises a desulfurization absorption tower 1, a bottom plate 2, a cleaning pool 3 and a synergistic cavity 4, a clean gas outlet groove 101 is fixedly installed at the top of the outer surface of the desulfurization absorption tower 1, a flue gas inlet groove 102 is fixedly installed on the outer surface of the desulfurization absorption tower 1, a speed regulator 201 and a circulating pump 202 are fixedly connected to the top of the outer surface of the bottom plate 2, the speed regulator 201 and the circulating pump 202 are movably connected, a suction pipe is fixedly embedded at one end of the circulating pump 202 close to the desulfurization absorption tower 1, the circulating pump 202 is connected with the desulfurization absorption tower 1 through the suction pipe, a bottom pipe 203 is movably embedded on the top of the outer surface of the circulating pump 202, the bottom pipe 203 is movably embedded in the desulfurization absorption tower 1, a plurality of sewage pipes 301 are fixedly connected to the top of the outer surface of the cleaning pool 3, a pressure pump 401 is fixedly connected to the bottom of the outer surface of the synergistic cavity 4, a liquid inlet pipe 402 is movably embedded in the pressure pump 401, a demister 5 is fixedly installed in the desulfurization absorption tower 1, a slurry pipe 6 is movably embedded in the desulfurization absorption tower 1, a plurality of synergistic liquid pipes 8 are movably embedded in the desulfurization absorption tower 1, a slurry pool 7 is arranged at the bottom of the desulfurization absorption tower 1, a first flange pipe 404 is movably connected to one end of the outer surface of the liquid inlet pipe 402, and the desulfurization absorption tower 1 is additionally provided with a pipeline group for mixing of a desulfurization synergist, the pipeline group is matched with the slurry pipe 6 for input of slurry to form the mixer, the pipeline group comprises a plurality of synergistic liquid pipes 8, one end of the plurality of synergistic liquid pipes 8 is connected with one end of the liquid inlet pipe 402 through a connecting elbow pipe 406, a T-shaped female pipe 405 and the first flange pipe 404, and is used for pumping of the desulfurization synergist, the other end is connected with the cleaning pool 3 through a plurality of sewage pipes 301, and a blowdown valve 801 is arranged at the connecting end of each of the sewage pipes 301 and the synergistic liquid pipes 8, so that the blowdown cleaning mode and the desulfurization synergist mixing mode are switched, and the connection mode of the plurality of synergistic liquid pipes 8 and the slurry pipe 6 is as follows:

[0040] The slurry pipe 6 is arranged at the inlet of the bottom pipe 203 of the top layer of the desulfurization absorption tower 1, four Φ108 hole grooves are arranged above the slurry pipe 6, the hole grooves are used for connecting the communication shell 601 and the communication inner pipe 1005, four Φ108 hole grooves are also arranged below the hole grooves, the short pipe flanges are made by welding on the eight hole grooves, polishing is performed after the welding is completed, the multiple effector liquid pipes 8 used for mixing the desulfurization efficiency enhancer are connected at this position, the multiple effector liquid pipes 8 are made of calcium carbide corrosion-resistant and wear-resistant materials, the material strength is higher than that of the duplex stainless steel 2205, different specifications of the spray holes 802 are arranged on the multiple effector liquid pipes 8, the spray holes 802 are used for connecting the nozzles 1004, the opening direction of the spray holes 802 is opposite to the slurry flow direction, so that the countercurrent is formed, one side of each of the multiple effector liquid pipes 8 is provided with the adjusting disc 10, each of the adjusting discs 10 is used for connecting the nozzles 1004 on the spray holes 802, and the opening and closing of the nozzles 1004 and the communication inner pipe 1005 can be synchronously adjusted, the sizes of the spray holes 802 are gradually reduced from the middle to the two ends, the sizes can be Φ6, Φ8, Φ10, Φ12 and Φ14, the connection of the above-mentioned pipes is achieved in the sleeve connection mode, the connection sealing is ensured, the pipes are convenient to install, disassemble and maintain.

[0041] During the mixing, the desulfurization efficiency enhancer in the efficiency enhancer cavity 4 is pumped into the inside of the upper and lower multiple effector liquid pipes 8 through the liquid inlet pipe 402, the T-shaped female pipe 405 and the connecting elbow pipe 406 by the pressure pump 401, the slurry in the slurry pool 7 is pumped into the inside of the slurry pipe 6 through the bottom pipe 203 by the bottom circulating pump 202, the slurry is pumped into the inside of the multiple effector liquid pipes 8 through the communication inner pipe 1005 at the connection position of the slurry pipe 6 and the effector liquid pipe 8, then the mixing of the slurry and the desulfurization efficiency enhancer previously pumped into the inside of the effector liquid pipe 8 is realized, then the mixed slurry is sprayed through the multiple nozzles 1004, the mixed slurry after the spraying is again pumped into the inside of the effector liquid pipe 8 by the circulating pump 202 through the bottom pipe 203 after the slurry is settled, the mixed desulfurization efficiency enhancer is again fully mixed through the slurry pipe 6 and the effector liquid pipe 8, so that the desulfurization efficiency enhancer is fully mixed and dissolved with the slurry, thereby improving the reaction efficiency of the desulfurization efficiency enhancer and the flue gas, the desulfurization efficiency enhancer or other efficiency enhancers can be quickly, uniformly and mixed with the slurry of the spraying layer, and the efficiency enhancer adding effect is improved.

[0042] Meanwhile, the sizes of the spray holes 802 are gradually reduced from the middle to the two ends, the sizes can be Φ6, Φ8, Φ10, Φ12 and Φ14, the flue gas concentration is highest at the middle position, and the size of the nozzle 1004 is adjusted to be larger in correspondence, so that the subsequent flue gas desulfurization effect is improved.

[0043] At the same time, the blowdown valve 801, the sewage pipe 301 and the cleaning pool 3 are arranged at one end of the synergistic liquid pipe 8, facilitating periodic maintenance, and the connection between the slurry pipe 6 and the synergistic liquid pipe 8 can be disconnected by adjusting the extension and retraction of the extension column 1001 in the adjusting disc 10, the extension and retraction of the extension column 1001 drives the rotation of the gear 1008 matched with the rack 1003, and then drives the rotation of the valve plate 1006, and each valve plate 1006 is matched with the nozzle 1004 and the communication inner pipe 1005 outside, so that the bottom of multiple nozzles 1004 is simultaneously disconnected, the inside of the synergistic liquid pipe 8 is directly flushed and cleaned by opening the blowdown valve 801, and the inside of the synergistic liquid pipe 8 is directly flushed and cleaned by opening the blowdown valve 801, thereby avoiding the accumulation of a small amount of flue gas desulfurization crystalline particles in the inside of the synergistic liquid pipe 8 from the nozzle 1004 after long-term use, and avoiding internal blockage.

[0044] Please refer to Figures 1-8 , the inside of the first flange pipe 404 is movably embedded with a T-shaped female pipe 405, the end of the liquid inlet pipe 402 close to the first flange pipe 404 is fixedly sleeved with a liquid inlet valve 403, the inside of the T-shaped female pipe 405 is fixedly embedded with a plurality of connecting elbow pipes 406, the connecting elbow pipes 406 are movably connected with the synergistic liquid pipes 8, and the ends of the plurality of synergistic liquid pipes 8 close to the cleaning pool 3 are fixedly sleeved with the blowdown valves 801.

[0045] Please refer to Figures 1-8 , the plurality of synergistic liquid pipes 8 are evenly divided into two groups, and the opposite sides of the two groups of synergistic liquid pipes 8 are each provided with a plurality of spray holes 802. The inside of the flue gas desulfurization tower 1 is additionally provided with a pipeline group for mixing the desulfurization synergist, and the pipeline group is matched with the slurry pipe 6 for inputting slurry to form a mixer, the pipeline group includes a plurality of synergistic liquid pipes 8, one end of the plurality of synergistic liquid pipes 8 is connected to one end of the liquid inlet pipe 402 through the connecting elbow pipe 406, the T-shaped female pipe 405 and the first flange pipe 404, and is used for pumping the desulfurization synergist, and the other end is connected to the cleaning pool 3 through a plurality of sewage pipes 301.

[0046] Please refer to Figures 1-8 , the outer surfaces of the plurality of synergistic liquid pipes 8 are each fixedly sleeved with a sleeve ring 9, and the outer surfaces of the plurality of sleeve rings 9 are each fixedly connected with an adjusting disc 10. Each adjusting disc 10 is used for connecting the nozzles 1004 on the spray holes 802, and simultaneously synchronously adjusting the opening and closing of the nozzles 1004 and the communication inner pipe 1005, the sizes of the spray holes 802 are gradually reduced from the middle to the two ends, and the sizes can be Φ6, Φ8, Φ10, Φ12 and Φ14. The connection of the above-mentioned pipeline end adopts a sleeve connection mode, which ensures the sealing of the connection, facilitates the installation and disassembly of the pipeline, and facilitates periodic maintenance.

[0047] Please refer to Figures 1-8The adjusting disc 10 is movably installed on the outer surface of the synergistic liquid pipe 8, and the communicating shell 601 is movably connected to the outer surface of the slurry pipe 6. The connection between the slurry pipe 6 and the synergistic liquid pipe 8 can be disconnected by the extension and retraction of the telescopic column 1001 in the adjusting disc 10.

[0048] Referring to Figures 1-8 The telescopic column 1001 is fixedly embedded in the inside of each adjusting disc 10, and the connecting row 1002 is fixedly connected to one end of the outer surface of the telescopic column 1001. Each valve piece 1006 is matched with the nozzle 1004 and the communicating inner pipe 1005.

[0049] Referring to Figures 1-8 The rack 1003 is fixedly installed on one side of the outer surface of the connecting row 1002, and the nozzle 1004 is movably embedded in the inside of the adjusting disc 10. The bottom of the nozzle 1004 is simultaneously disconnected to directly replace the desulfurization synergist in the synergistic cavity 4 with water flow, and the inside of the synergistic liquid pipe 8 is directly flushed and cleaned after the opening of the blowdown valve 801.

[0050] Referring to Figures 1-8 The communicating inner pipe 1005 is movably embedded in the inside of the adjusting disc 10, and the communicating inner pipe 1005 is fixedly embedded in the inside of the communicating shell 601. The extension and retraction of the telescopic column 1001 drives the rotation of the gear 1008 matched with the rack 1003, and then drives the rotation of the valve piece 1006.

[0051] Referring to Figures 1-8 The valve shaft 1007 is rotatably installed in the inside of the communicating inner pipe 1005 and the nozzle 1004, and the valve piece 1006 is fixedly sleeved on the outer surface of the valve shaft 1007. Each valve piece 1006 is matched with the nozzle 1004 and the communicating inner pipe 1005 to simultaneously disconnect the bottom of the nozzle 1004.

[0052] Referring to Figures 1-8 One end of the outer surface of the valve shaft 1007 is fixedly sleeved with the gear 1008, and the gear 1008 is meshed and connected with the rack 1003.

[0053] Working principle

[0054] The desulfurization absorption tower 1 is additionally provided with a pipe group for mixing the desulfurization synergist inside the tower, which is matched with the slurry pipe 6 for inputting slurry to form a mixer, and the pipe group includes a plurality of synergist liquid pipes 8, one end of which is connected to one end of the liquid inlet pipe 402 through the connecting elbow 406, the T-shaped female pipe 405 and the first flange pipe 404, for pumping the desulfurization synergist, and the other end is connected to the cleaning pool 3 through a plurality of sewage pipes 301, and a blowdown valve 801 is arranged at the connection end of the sewage pipe 301 and the synergist liquid pipe 8 for switching the blowdown cleaning mode and the desulfurization synergist mixing mode, and the connection mode of the plurality of synergist liquid pipes 8 and the slurry pipe 6 is as follows:

[0055] A slurry pipe 6 is arranged at the inlet of the bottom pipe 203 of the desulfurization absorption tower 1, four Φ108 hole grooves are arranged above the slurry pipe 6, the hole grooves are used to connect the communicating shell 601 and the communicating inner pipe 1005, four Φ108 hole grooves are also arranged symmetrically below, and a short pipe flange is welded on the eight hole grooves, and polishing is performed after welding, the plurality of synergist liquid pipes 8 for mixing the desulfurization synergist are made of calcium carbide anticorrosive wear-resistant material, which has higher material strength than duplex stainless steel 2205, different specifications of spray holes 802 are arranged on the plurality of synergist liquid pipes 8, the spray holes 802 are used to connect the nozzles 1004, the opening direction of the spray holes 802 is opposite to the slurry flow direction, so as to form countercurrent, one side of each synergist liquid pipe 8 is provided with an adjusting disc 10, each adjusting disc 10 is used to connect the nozzle 1004 on the spray hole 802, and the opening and closing of the nozzle 1004 and the communicating inner pipe 1005 can be synchronously adjusted, the size of the spray hole 802 is gradually reduced from the middle to the two ends, and the size can be Φ6, Φ8, Φ10, Φ12 and Φ14, the connection of the above pipe ends is in the form of a sleeve, which ensures the sealing of the connection and facilitates the installation, disassembly, periodic maintenance of the pipe.

[0056] Specific mixing, by pressure pump 401, desulfurization synergist inside the synergic cavity 4 is pumped into the inside of the upper and lower two layers of synergic liquid pipe 8 through the liquid inlet pipe 402, T-shaped female pipe 405, connecting elbow 406, here, 4 synergic liquid pipes 8 in each layer, the bottom circulating pump 202 synchronously pumps the slurry inside the slurry pool 7 into the inside of the slurry pipe 6 through the suction pipe, then the slurry is pumped into the inside of the upper and lower multiple synergic liquid pipes 8 through the communication inner pipe 1005 at the connection position of the slurry pipe 6 and the synergic liquid pipe 8, and then the mixed slurry is sprayed through multiple nozzles 1004, at this time, the mixed slurry after spraying is pumped into the inside of the synergic liquid pipe 8 by the circulating pump 202 through the bottom pipe 203 after settling, and the mixed desulfurization synergist is mixed again through the slurry pipe 6 and the synergic liquid pipe 8, so as to realize the full mixing and dissolution of the added desulfurization synergist and the slurry, thereby improving the reaction efficiency of the desulfurization synergist and the flue gas, and the desulfurization synergist or other synergist can be quickly, uniformly and mixed with the slurry in the spraying layer, thereby improving the synergist adding effect.

[0057] At the same time, the size of the opening hole, the size of the spray hole 802 is from large to small from the middle to both ends, which can be Φ6, Φ8, Φ10, Φ12, Φ14, the flue gas concentration is highest in the middle position, and the size of the spray nozzle 1004 is adjusted to be larger, so as to improve the subsequent flue gas desulfurization effect

[0058] At the same time, the blowdown valve 801, the sewage pipe 301 and the cleaning pool 3 are arranged at one end of the synergic liquid pipe 8, which is convenient for periodic maintenance, the telescopic column 1001 in the adjusting disc 10 is adjusted to disconnect the connection between the slurry pipe 6 and the synergic liquid pipe 8, and the bottom spray of multiple nozzles 1004 is disconnected at the same time, so that the desulfurization synergist inside the synergic cavity 4 is replaced by water flow, and the inside of the multiple synergic liquid pipes 8 is directly flushed and cleaned after the blowdown valve 801 is opened, so as to avoid that a small amount of flue gas desulfurization crystalline particles enter the inside of the synergic liquid pipe 8 from the nozzle 1004 and accumulate after long-term use, and avoid internal blockage.

[0059] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A desulfurization absorption column slurry circulating pump inlet mixer comprising: The application discloses a desulfurization absorption tower (1), a bottom plate (2), a cleaning pool (3) and a synergistic cavity (4), characterized in that the top of the outer surface of the desulfurization absorption tower (1) is fixedly provided with a clean gas outlet groove (101), the outer surface of the desulfurization absorption tower (1) is fixedly provided with a flue gas inlet groove (102), the top of the outer surface of the bottom plate (2) is fixedly connected with a speed regulator (201) and a circulating pump (202), the speed regulator (201) and the circulating pump (202) are movably connected, one end of the circulating pump (202) close to the desulfurization absorption tower (1) is fixedly embedded with a suction pipe, the circulating pump (202) is connected with the desulfurization absorption tower (1) through the suction pipe, the top of the outer surface of the circulating pump (202) is movably embedded with a bottom pipe (203), the bottom pipe (203) is movably embedded in the desulfurization absorption tower (1), the top of the outer surface of the cleaning pool (3) is fixedly connected with a plurality of sewage pipes (301), the bottom of the outer surface of the synergistic cavity (4) is fixedly connected with a pressure pump (401), the inside of the pressure pump (401) is movably embedded with a liquid inlet pipe (402), the inside of the desulfurization absorption tower (1) is fixedly provided with a demister (5), the inside of the desulfurization absorption tower (1) is movably embedded with a slurry pipe (6), the inside of the desulfurization absorption tower (1) is movably embedded with a plurality of synergistic liquid pipes (8), the bottom of the inside of the desulfurization absorption tower (1) is provided with a slurry pool (7), one end of the outer surface of the liquid inlet pipe (402) is movably connected with a first flange pipe (404), the inside of the first flange pipe (404) is movably embedded with a T-shaped female pipe (405), one end of the liquid inlet pipe (402) close to the first flange pipe (404) is fixedly sleeved with a liquid inlet valve (403), the inside of the T-shaped female pipe (405) is fixedly embedded with a plurality of connecting elbow pipes (406), the connecting elbow pipes (406) are movably connected with the synergistic liquid pipes (8), one end of the synergistic liquid pipes (8) close to the cleaning pool (3) is fixedly sleeved with a blowdown valve (801), a plurality of the synergistic liquid pipes (8) are averagely divided into two groups, a plurality of spray holes (802) are formed in opposite sides of the two groups of the synergistic liquid pipes (8), the outer surfaces of a plurality of the synergistic liquid pipes (8) are fixedly sleeved with a plurality of sleeve rings (9), and the outer surfaces of a plurality of the sleeve rings (9) are fixedly connected with a plurality of adjusting discs (10), the adjusting discs (10) are movably mounted on the outer surfaces of the synergistic liquid pipes (8), and the outer surfaces of the slurry pipes (6) are movably connected with a plurality of communication housings (601), the insides of a plurality of the adjusting discs (10) are fixedly embedded with a plurality of telescopic columns (1001), and one end of the outer surfaces of a plurality of the telescopic columns (1001) is fixedly connected with a plurality of connecting rows (1002), the outer surfaces of a plurality of the connecting rows (1002) are fixedly mounted with a plurality of racks (1003), and the insides of a plurality of the adjusting discs (10) are movably embedded with a plurality of nozzles (1004). ​ The inside of each of the plurality of adjusting discs (10) is movably embedded with a communicating inner tube (1005), which is fixedly embedded in the inside of a communicating shell (601); The inside of each of the plurality of communicating inner tubes (1005) and nozzles (1004) is rotatably installed with a valve shaft (1007), and the outer surface of each of the plurality of valve shafts (1007) is fixedly sleeved with a valve piece (1006); One end of the outer surface of each of the plurality of valve shafts (1007) is fixedly sleeved with a gear (1008), and the gear (1008) is meshedly connected with a rack (1003).

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