CN113856432B - Desulfurizing tower of power plant - Google Patents
Desulfurizing tower of power plant Download PDFInfo
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- CN113856432B CN113856432B CN202111259556.9A CN202111259556A CN113856432B CN 113856432 B CN113856432 B CN 113856432B CN 202111259556 A CN202111259556 A CN 202111259556A CN 113856432 B CN113856432 B CN 113856432B
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- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 59
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 42
- 230000023556 desulfurization Effects 0.000 claims abstract description 42
- 238000003756 stirring Methods 0.000 claims abstract description 38
- 239000000428 dust Substances 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims 2
- 229910052602 gypsum Inorganic materials 0.000 abstract description 12
- 239000010440 gypsum Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002244 precipitate Substances 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 17
- 239000002002 slurry Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The application discloses a power plant desulfurization tower, which comprises a main body module, wherein the main body module comprises a desulfurization tower and a smoke dust feeding body, an air supply port is formed in the outer wall of the desulfurization tower, and the smoke dust feeding body is arranged at the air supply port; the stirring modules are provided with a plurality of groups and are arranged along the circumference of the outer wall of the desulfurizing tower, the outer wall of the desulfurizing tower is provided with a through hole, the stirring modules pass through the through hole and are fixedly arranged on the desulfurizing tower, and the stirring modules are positioned at the position of the lower part of the desulfurizing tower; according to the application, gypsum precipitate at the bottom of the desulfurization tower can be impacted efficiently without dead angle, the rotating inclined scraping impact plate can also play a role in rotating and stirring, the stirring and mixing effects on the precipitated gypsum are integrally realized, the concentration of the gypsum in the spray liquid is ensured, and the desulfurization effect is maximized.
Description
Technical Field
The application relates to the technical field of desulfurizing towers, in particular to a power plant desulfurizing tower.
Background
China is a large country of coal burning, coal accounts for more than 75% of the total consumption of primary energy, and the structure of primary energy mainly comprising coal is not changed recently, so that the air pollution and the harm caused by sulfur dioxide are increasingly regarded as environmental problems.
Flue gas desulfurization is the most effective and irreplaceable technology for reducing SO2 emission, wherein the wet desulfurization technology is the most widely applied flue gas desulfurization technology in the world because of the advantages of high desulfurization efficiency, wide application range, mature technology, rich absorbent resources, capability of making byproducts into commodity sales and the like. In the wet desulfurization process, the empty tower is mainly adopted for spraying to carry out flue gas desulfurization, the desulfurization liquid circulation mode adopts the internal tower circulation, the slurry tank is arranged at the bottom of the desulfurization tower, in the past, in order to avoid gypsum precipitation at the bottom of the desulfurization tower, a side-entering stirrer needs to be arranged in the tower body to prevent impurity precipitation, however, the stirrer blades of the side-entering stirrer are stirred with dead angles in the stirring process, the stirring and mixing effects are not achieved, more gypsum precipitates in the slurry tank are caused, the gypsum content in the spraying liquid is reduced, and the desulfurization efficiency of the desulfurization tower is reduced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the problems occurring in the prior art.
Therefore, the technical problem to be solved by the application is that dead angles are formed in the stirring process of the existing desulfurization tower bottom stirrer, so that the stirring and mixing effects are not realized, more gypsum precipitates in the slurry tank are caused, the content of gypsum in the spraying liquid is reduced, and the desulfurization efficiency of the desulfurization tower is reduced.
In order to solve the technical problems, the application provides the following technical scheme: the utility model provides a power plant desulfurizing tower, its includes main body module, main body module includes desulfurizing tower and smoke and dust send-in body, the outer wall of desulfurizing tower has seted up the air feed port, the smoke and dust send-in body is installed in the air feed port; and the stirring modules are provided with a plurality of groups and are arranged along the circumference of the outer wall of the desulfurizing tower, the outer wall of the desulfurizing tower is provided with a through hole, the stirring modules pass through the through hole to be fixedly arranged on the desulfurizing tower, and the stirring modules are positioned at the position of the eccentric bottom of the desulfurizing tower.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the dust feeding body comprises a gas pipe, a dust collection rod and a driver, wherein the gas pipe is fixedly arranged on the gas feeding port and is communicated with the inside of the desulfurizing tower, the dust collection rod is transversely positioned in the gas pipe, and the driver is positioned outside the gas pipe and is connected with the dust collection rod.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the two ends of the gas pipe are communicated in a penetrating way, the top wall of the gas pipe is provided with a square opening, and the two ends of the square opening extend and penetrate along the two side walls of the gas pipe.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the dust collection rod is embedded into the air pipe from the square opening, and two ends of the dust collection rod are erected on two side walls of the air pipe.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: one side of the air pipe is provided with a storage rack, and the driver is arranged on the storage rack and connected with the dust collection stick.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the smoke dust feeding body further comprises limiting plates, clamping plates are vertically arranged at two ends of the limiting plates, the limiting plates are arranged in the square openings, and the clamping plates limit the two ends of the dust collection stick along two side walls of the air conveying pipe.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the clamping plate is provided with a semicircular opening, and the semicircular opening is matched with diameters of two ends of the dust collection stick.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the device comprises a desulfurizing tower, a washing module, a water inlet pipeline, a shaft tube, a gear ring and a descaling plate, wherein the washing module is arranged at the bottom in the desulfurizing tower, the gear ring is positioned at the bottom in the desulfurizing tower, the shaft tube is positioned in the gear ring and is coaxially arranged with the gear ring, and the descaling plate is circumferentially arranged between the shaft tube and the gear ring and is fixedly connected with the shaft tube and the gear ring; the stirring module comprises a motor and a gear, the motor penetrates through the wall of the desulfurizing tower to be fixedly arranged, the gear is sleeved on a motor shaft, and the gear is meshed with the gear ring.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the stirring module further comprises a stirrer, a pushing piece and a pulling piece, wherein the motor shaft is connected with the guide screw, the stirrer is sleeved and connected on the guide screw, the end part of the guide screw is provided with a limiting disc, the guide screw is rotationally connected with the limiting disc and is fixedly connected with the inner wall of the desulfurizing tower through a rod, the pushing piece is in a circular tube structure and sleeved on the guide screw, the inner wall of the pushing piece is in threaded fit with the guide screw, the pulling piece is formed by relatively sleeving two semicircular pressing tubes on the guide screw, and the pulling piece is positioned between the pushing piece and the stirrer.
As a preferable scheme of the power plant desulfurization tower, the application comprises the following steps: the two semicircular pressing pipes are elastically connected, one end of the pulling piece is connected with the stirrer, the other end of the pulling piece is connected with a slope of the end face of the pushing piece in an extrusion fit manner, a fixed limiting rod is arranged on the outer wall of one semicircular pressing pipe, and the fixed limiting rod sequentially penetrates through the pushing piece and the limiting disc;
the descaling plate is arranged in a hollow mode, a plurality of flushing holes are formed in the descaling plate, one end of the water inlet pipeline extends into the shaft tube, the other end of the water inlet pipeline extends out of the wall of the desulfurizing tower, and sealing filler is filled between the shaft tube and the water inlet pipeline.
The application has the beneficial effects that: according to the application, gypsum precipitate at the bottom of the desulfurization tower can be impacted efficiently without dead angle, the rotating inclined scraping impact plate can also play a role in rotating and stirring, the stirring and mixing effects on the precipitated gypsum are integrally realized, the concentration of the gypsum in the spray liquid is ensured, and the desulfurization effect is maximized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a block diagram of a main body module in the first embodiment.
Fig. 2 is an assembly view of a main body module and a stirring module in the first embodiment.
Fig. 3 is a block diagram of a cleaning module in a second embodiment.
Fig. 4 is a detailed view of the stirring module in the second embodiment.
Fig. 5 is an enlarged view of a portion K of fig. 4 in the second embodiment.
Fig. 6 is a drawing showing the construction of the pulling member in the second embodiment.
Fig. 7 is a cross-sectional view of the agitator in the second embodiment.
Fig. 8 is a structural view of a pusher in the second embodiment.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present application provides a power plant desulfurization tower including a main body module 300 and a stirring module 200.
The main body module 300 comprises a desulfurizing tower 301 and a smoke dust feeding body 302, wherein an air inlet 301a is formed in the outer wall of the desulfurizing tower 301, and the smoke dust feeding body 302 is arranged on the air inlet 301a; in the wet desulfurization process, flue gas desulfurization is mainly carried out by adopting a hollow tower spray mode, a desulfurization liquid circulation mode adopts tower internal circulation, and a slurry tank is arranged at the bottom of the desulfurization tower; the flue dust is generally fed from the flue dust feed body 302 into the desulfurizing tower 301, desulfurized by the device structure and the desulfurizing liquid in the desulfurizing tower 301, and the clean air is discharged from above the desulfurizing tower 301.
The smoke dust feeding body 302 comprises a gas pipe 302a, a dust collection rod 302b and a driver 302c, wherein the gas feeding hole 301a is of a square structure, the gas pipe 302a is also of a square pipe structure, two ends of the gas pipe 302a are communicated in a penetrating way, one end of the gas pipe is inserted into the gas feeding hole 301a to be fixedly connected, the dust collection rod 302b is transversely arranged in the gas pipe 302a, and the gas pipe 302a is fixedly arranged on the gas feeding hole 301a and is communicated with the interior of the desulfurizing tower 301; the actuator 302c is located outside the air delivery tube 302a and is coupled to the cleaning wand 302b.
Further, the top wall of the air delivery tube 302a is provided with a square opening 302a-1, the square opening 302a-1 is transversely arranged, two ends of the square opening 302a-1 extend to the top of two side walls of the air delivery tube 302a, and two ends of the square opening 302a-1 extend downwards along two side walls of the air delivery tube 302a to form a recess.
The suction wand 302b is inserted into the air delivery tube 302a from the square opening 302a-1 and both ends of the suction wand 302b are mounted on both side walls of the air delivery tube 302 a.
One side of the air pipe 302a is provided with a rack 302a-2, and a driver 302c is mounted on the rack 302a-2 and connected to the dust suction stick 302b.
Further, the smoke feeding body 302 further comprises a limiting plate 302d, two ends of the limiting plate 302d are vertically provided with clamping plates 302d-1, the limiting plate 302d is installed in the square opening 302a-1, and the clamping plates 302d-1 limit two ends of the dust collection stick 302b along two side walls of the air conveying pipe 302 a. The clamping plate 302d-1 is provided with a semicircular opening 302d-2, and the semicircular opening 302d-2 is matched with the diameters of two ends of the dust collection stick 302b.
The stirring modules 200 are provided with a plurality of groups and are arranged along the circumference of the outer wall of the desulfurizing tower 301, the outer wall of the desulfurizing tower 301 is provided with a through hole 301b, the stirring modules 200 are fixedly arranged on the desulfurizing tower 301 through the through hole 301b, and the stirring modules 200 are positioned at the position of the lower part of the desulfurizing tower 301.
Example 2
Referring to fig. 3 to 8, which are a second embodiment of the present application, the embodiment is based on the previous embodiment, and further includes a flushing module 100, and the flushing module 100 and the stirring module 200 are installed at the bottom of the desulfurizing tower; the washing module 100 can wash and scrape the bottom of the desulfurization tower, and the stirring of the stirring module 200 can reduce gypsum precipitate in the slurry tank.
The flushing module 100 comprises a water inlet pipeline 101, a shaft tube 102, a gear ring 103 and a descaling plate 104, wherein the shaft tube 102 and the gear ring 103 are arranged at the bottom of the desulfurizing tower, the shaft tube 102 is positioned in the gear ring 103 and is arranged coaxially with the gear ring 103, the descaling plate 104 is circumferentially arranged between the shaft tube 102 and the gear ring 103 and is fixedly connected with the shaft tube 102 and the gear ring 103, the descaling plate 104 is of a strip-shaped structure and is obliquely arranged, the bottom of the descaling plate 104 is provided with a scraping tip, and the rotation of the gear ring 103 can drive the descaling plate 104 to rotate so as to scrape dirt at the bottom.
The stirring module 200 is erected on the desulfurizing tower wall through the desulfurizing tower wall and a plurality of groups are arranged along the circumference of the gear ring 103, the stirring module 200 comprises a motor 201 and a gear 202, the motor 201 penetrates through the desulfurizing tower wall, and the gear 202 is positioned in the desulfurizing tower; the gear 202 is sleeved on the shaft of the motor 201, and the gear 202 is meshed with the gear ring 103; the gear 202 rotates to be meshed with the gear ring 103 to drive the gear ring 103 to rotate.
Further, the motor 201 is connected with the lead screw 201a in a shaft way, the stirring module 200 further comprises a stirrer 203, and the stirrer 203 is sleeved and connected on the lead screw 201a to rotate together with the lead screw 201 a; the end of the lead screw 201a is provided with a limit disc 201b, the lead screw 201a is rotationally connected with the limit disc 201b, and the limit disc 201b is fixedly connected with the inner wall of the desulfurizing tower through a rod, so that the limit disc 201b is fixed, and the lead screw 201a can rotate.
Further, the stirring module 200 further comprises a pushing member 204 and a pulling member 205, the pushing member 204 is in a circular tube structure and sleeved on the lead screw 201a, the inner wall of the pushing member 204 is in threaded fit with the lead screw 201a, the pulling member 205 is composed of two semicircular pressing tubes 205a, the two semicircular pressing tubes 205a are oppositely sleeved on the lead screw 201a to form a circular tube, and the pulling member 205 is located between the pushing member 204 and the stirrer 203.
The outer wall of the semicircular pressing pipe 205a is provided with a supporting plate 205a-1, the supporting plates 205a-1 on the two semicircular pressing pipes 205a are relatively parallel, the two supporting plates 205a-1 are connected with each other through a spring 205a-2, the inner wall of the semicircular pressing pipe 205a is in threaded fit with the guide screw 201a, and the matching means: when the lead screw 201a rotates, the inner wall of the semicircular pressing pipe 205a follows the rotation, and the rotation direction of the inner wall of the semicircular pressing pipe 205a needs to be limited, so that the pulling piece 205 moves along the lead screw 201a when the lead screw 201a rotates.
Further, to achieve the above-mentioned limit of the semicircular pressing tube 205 a: a fixed limiting rod 205a-3 is arranged on the outer wall of one semicircular pressing pipe 205a, and the fixed limiting rod 205a-3 sequentially passes through the pushing piece 204 and the limiting disc 201b; the limiting plate 201b is fixed differently so that the rotation directions of the push member 204 and the pull member 205 are limited.
The pushing member 204 is connected with the limiting plate 201b through an elastic member a.
The stirrer 203 is provided with a first groove ring 203a towards one end of the pulling piece 205, a second groove ring 203b is arranged on the outer ring wall of the first groove ring 203a, one end of the pulling piece 205 towards the stirrer 203 is provided with a limiting rod 205b, the end part of the limiting rod 205b is provided with a vertical protruding lug 205c, the limiting rod 205b stretches into the first groove ring 203a, and the lug 205c stretches into the second groove ring 203 b. The size of the limiting rod 205b is smaller than the distance between the grooves of the first groove ring 203a, and the height of the protruding block 205c is smaller than the distance between the grooves of the second groove ring 203 b.
One end of the pushing piece 204 facing the pulling piece 205 is provided with a ring groove 204a, the diameter of the inner ring of the ring groove 204a is larger than that of the guide screw 201a, and the inner ring wall of the ring groove 204a is provided with an inclined end face T inclined to the outer wall of the guide screw 201 a. The inclined end surface T extends obliquely to the center of the circle and is attached to the wall of the guide screw 201a, the outer diameters of the two semicircular pressing pipes 205a are consistent with the outer ring diameter of the annular groove 204a, and the inner diameters of the two semicircular pressing pipes 205a are consistent with the inner ring diameter of the annular groove 204 a; when the two semicircular pressing pipes 205a move along the threads, the pushing piece 204 is forced by the pushing piece 204, the force is divided into horizontal force and vertical force on the inclined end face T due to the factor of the inclined end face T, the pushing piece 204 is extruded by the horizontal force, the elastic piece A is compressed by the horizontal force, the reaction force in the vertical direction enables the two semicircular pressing pipes 205a to climb the inclined end face T and enter the annular groove 204a, at the moment, the spring 205a-2 between the two semicircular pressing pipes 205a stretches, the two semicircular pressing pipes 205a are not contacted with the wall of the guide screw 201a, and the threaded fit is released.
Due to the compression of the elastic member a, the elastic member a releases the force to push out the pushing member 204; the screw thread on the lead screw 201a is provided with a part, the part at one end of the limit disc 201b is not provided with the screw thread, the initial state of the pushing piece 204 is in the part without the screw thread, the elastic piece A pushes the pushing piece 204 out to the place with the screw thread, the pushing piece 204 is matched with the screw thread rapidly due to the rapid rotation of the lead screw 201a, the screw thread of the inner wall of the pushing piece 204 is opposite to the screw thread of the inner wall of the pulling piece 205, and the pushing piece 204 pushes the stirrer 203 to retreat.
The elastic piece A is continuously stretched until the pushing piece 204 is pulled back after a certain distance, the two semicircular pressing pipes 205a fall out of the annular groove 204a and are matched with the guide screw 201a again, so that the stirrer 203 rotates on the guide screw 201a back and forth to stir the desulfurizing liquid at the bottom of the desulfurizing tower, and the back and forth stirring can be more sufficient.
The descaling plate 104 is arranged in a hollow way, a plurality of flushing holes 104a are formed in the descaling plate 104, one end of the water inlet pipeline 101 extends into the shaft tube 102, the other end extends out of the desulfurizing tower wall, and sealing filler is filled between the shaft tube 102 and the water inlet pipeline 101; the washing water is flushed into the shaft tube 102 from the water inlet pipe 101, the inside of the descaling plate 104 is hollow and communicated with the shaft tube 102, the shaft tube 102 rotates to generate centrifugal force, and the water flow is flushed into the inside of the descaling plate 104 and out of the flushing hole 104a due to the centrifugal effect, so that the bottom of the desulfurizing tower is flushed.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (7)
1. The utility model provides a power plant desulfurizing tower which characterized in that: comprising the steps of (a) a step of,
the main body module (300), the main body module (300) comprises a desulfurizing tower (301) and a smoke dust feeding body (302), an air inlet (301 a) is formed in the outer wall of the desulfurizing tower (301), and the smoke dust feeding body (302) is installed at the air inlet (301 a); the method comprises the steps of,
the stirring modules (200) are arranged in a plurality of groups and are circumferentially arranged along the outer wall of the desulfurizing tower (301), the outer wall of the desulfurizing tower (301) is provided with a through hole (301 b), the stirring modules (200) penetrate through the through hole (301 b) to be fixedly arranged on the desulfurizing tower (301), and the stirring modules (200) are located at the position, close to the bottom, of the desulfurizing tower (301);
a flushing module (100), wherein the flushing module (100) is arranged at the bottom in a desulfurizing tower (301) and comprises a water inlet pipeline (101), a shaft tube (102), a gear ring (103) and a detergent plate (104), the gear ring (103) is arranged at the bottom in the desulfurizing tower (301), the shaft tube (102) is arranged in the gear ring (103) and is coaxially arranged with the gear ring (103), and a plurality of detergent plates (104) are circumferentially arranged between the shaft tube (102) and the gear ring (103) and fixedly connected with the shaft tube (102) and the gear ring (103);
the stirring module (200) comprises a motor (201) and a gear (202), the motor (201) penetrates through the wall of the desulfurizing tower (301) to be fixedly arranged, the gear (202) is sleeved on the shaft of the motor (201), and the gear (202) is meshed with the gear ring (103);
the stirring module (200) further comprises a stirrer (203), a pushing piece (204) and a pulling piece (205), wherein the motor (201) is connected with the guide screw (201 a) through a shaft, the stirrer (203) is sleeved and connected on the guide screw (201 a), a limiting disc (201 b) is arranged at the end part of the guide screw (201 a), the guide screw (201 a) is rotationally connected with the limiting disc (201 b) and is fixedly connected with the inner wall of the desulfurizing tower through a rod, the pushing piece (204) is in a circular tube structure and sleeved on the guide screw (201 a), the inner wall of the pushing piece (204) is in threaded fit with the guide screw (201 a), the pulling piece (205) is formed by oppositely sleeving two semicircular pressing tubes (205 a) on the guide screw (201 a), and the pulling piece (205) is positioned between the pushing piece (204) and the stirrer (203);
the two semicircular pressing pipes (205 a) are elastically connected, one end of the pulling piece (205) is connected with the stirrer (203), the other end of the pulling piece is connected with a slope of the end face of the pushing piece (204) through extrusion fit, a fixed limiting rod (205 a-3) is arranged on the outer wall of one semicircular pressing pipe (205 a), and the fixed limiting rod (205 a-3) sequentially penetrates through the pushing piece (204) and the limiting disc (201 b);
the descaling plate (104) is arranged in a hollow manner, a plurality of flushing holes (104 a) are formed in the descaling plate (104), one end of the water inlet pipeline (101) extends into the shaft pipe (102), the other end of the water inlet pipeline extends out of the desulfurizing tower wall, and sealing filler is filled between the shaft pipe (102) and the water inlet pipeline (101);
the pushing piece (204) is connected with the limiting disc (201 b) through an elastic piece (A);
a first groove ring (203 a) is arranged at one end of the stirrer (203) facing the pulling piece (205), a second groove ring (203 b) is arranged on the outer ring wall of the first groove ring (203 a), a limit rod (205 b) is arranged at one end of the pulling piece (205) facing the stirrer (203), a vertically-protruding lug (205 c) is arranged at the end of the limit rod (205 b), the limit rod (205 b) stretches into the first groove ring (203 a), the lug (205 c) stretches into the second groove ring (203 b), the size of the limit rod (205 b) is smaller than the inter-groove distance of the first groove ring (203 a), and the height of the lug (205 c) is smaller than the inter-groove distance of the second groove ring (203 b).
An annular groove (204 a) is formed in one end, facing the pulling piece (205), of the pushing piece (204), the diameter of the inner ring of the annular groove (204 a) is larger than that of the guide screw (201 a), an inclined end face (T) inclined to the outer wall of the guide screw (201 a) is formed in the inner ring wall of the annular groove (204 a), the inclined end face (T) extends to the circle center obliquely and is attached to the wall of the guide screw (201 a), the outer diameters of two semicircular pressing pipes (205 a) are consistent with the diameter of the outer ring of the annular groove (204 a), and the inner diameters of the two semicircular pressing pipes (205 a) are consistent with the diameter of the inner ring of the annular groove (204 a); the two semicircular pressing pipes (205 a) are forced to the pushing piece (204) when moving along the threads, the force is divided into horizontal force and vertical force on the inclined end face (T) due to the factors of the inclined end face (T), the pushing piece (204) is pressed by the horizontal force, the elastic piece (A) is compressed by the horizontal force, the two semicircular pressing pipes (205 a) climb the inclined end face (T) into the annular groove (204 a) by the reaction force in the vertical direction, at the moment, the spring (205 a-2) between the two semicircular pressing pipes (205 a) is stretched, the two semicircular pressing pipes (205 a) are not contacted with the wall of the guide screw (201 a), and the threaded fit is released;
due to the compression of the elastic member (a), finally the elastic member (a) releases the force, pushing out the pushing member (204); the screw thread on the guide screw (201 a) is provided with a part, the part at one end of the limit disc (201 b) is not provided with screw thread, the pushing piece (204) is in an initial state at a part without screw thread, the elastic piece (A) pushes the pushing piece (204) out to a place with screw thread, the pushing piece (204) is rapidly matched with the screw thread due to rapid rotation of the guide screw (201 a), the screw thread of the inner wall of the pushing piece (204) is opposite to the screw thread of the inner wall of the pulling piece (205), and the pushing piece (204) pushes the stirrer (203) to retreat;
the elastic piece (A) is continuously stretched until the pushing piece (204) is pulled back after a certain distance, two semicircular pressing pipes (205 a) fall out of the annular groove (204 a) and are matched with the guide screw (201 a) again, so that the stirrer (203) rotates on the guide screw (201 a) back and forth to stir the desulfurizing liquid at the bottom of the desulfurizing tower, and back and forth stirring can be more sufficient.
2. The power plant desulfurization tower of claim 1, wherein: the dust feeding body (302) comprises a gas pipe (302 a), a dust collection rod (302 b) and a driver (302 c), wherein the gas pipe (302 a) is fixedly arranged on the gas feeding port (301 a) and is communicated with the interior of the desulfurizing tower (301), the dust collection rod (302 b) is transversely positioned in the gas pipe (302 a), and the driver (302 c) is positioned outside the gas pipe (302 a) and is connected with the dust collection rod (302 b).
3. The power plant desulfurization tower of claim 2, wherein: the two ends of the air delivery pipe (302 a) are communicated in a penetrating mode, a square opening (302 a-1) is formed in the top wall of the air delivery pipe (302 a), and the two ends of the square opening (302 a-1) extend and penetrate along the two side walls of the air delivery pipe (302 a).
4. A power plant desulfurization tower according to claim 3, characterized in that: the dust collection stick (302 b) is embedded into the air pipe (302 a) from the square opening (302 a-1), and two ends of the dust collection stick (302 b) are erected on two side walls of the air pipe (302 a).
5. A power plant desulfurization tower according to claim 2 or 3, characterized in that: one side of the air pipe (302 a) is provided with a commodity shelf (302 a-2), and a driver (302 c) is arranged on the commodity shelf (302 a-2) and is connected with the dust collection stick (302 b).
6. The power plant desulfurization tower of claim 4, wherein: the smoke dust feeding body (302) further comprises a limiting plate (302 d), clamping plates (302 d-1) are vertically arranged at two ends of the limiting plate (302 d), the limiting plate (302 d) is arranged in the square opening (302 a-1) and the clamping plates (302 d-1) limit two ends of the dust collection stick (302 b) along two side walls of the air conveying pipe (302 a).
7. The power plant desulfurization tower of claim 6, wherein: the clamping plate (302 d-1) is provided with a semicircular opening (302 d-2), and the semicircular opening (302 d-2) is matched with the diameters of two ends of the dust collection stick (302 b).
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| CN114522944B (en) * | 2022-04-02 | 2023-04-07 | 山鹰国际控股股份公司 | Deashing device at bottom of desulfurization tower |
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