Desulfurization wastewater treatment equipment for thermal power plant

Abstract

The invention discloses desulfurization wastewater treatment equipment of a thermal power plant, and belongs to the field of wastewater treatment. Comprising a stirring barrel, a water inlet pipe is fixedly connected to the top end of the stirring barrel, a first L-shaped plate is fixedly connected to the top end of the stirring barrel, a motor is arranged on the inner side of the first L-shaped plate, a neutralizing agent and a flocculating agent are added into the stirring barrel, and wastewater, the neutralizing agent and the flocculating agent are stirred through a stirring rod to be fully mixed. The method comprises the following steps: stirring wastewater to promote condensation of suspended solids and colloidal substances in the wastewater, settling the suspended solids and colloidal substances to the bottom of a stirring barrel under the action of gravity to separate the wastewater from the suspended solids and precipitates, then driving a connecting rod, a circular ring block and a fan-shaped filter screen to move downwards through an electric push rod, and driving an arc-shaped filter screen to move through the fan-shaped filter screen, the bottom end of the arc-shaped filter screen is in contact with the inner bottom wall of the stirring barrel, and the fan-shaped filter screen and the arc-shaped filter screen can intercept and filter suspended matters and colloidal substances, so that wastewater can be conveniently pumped out.

Description

Technical Field

[0001] The invention relates to the field of wastewater treatment, and more specifically to a desulfurization wastewater treatment device for a thermal power plant. Background Art

[0002] Desulfurization wastewater is a type of wastewater from a thermal power plant. When a coal-fired power plant desulfurizes the boiler flue gas, a large amount of flue gas, suspended matter and impurities are generated due to the combustion of coal.

[0003] The slurry formed by the dissolution of limestone will generate calcium sulfate and calcium sulfite while removing sulfur dioxide from the flue gas, which can effectively reduce the concentration of F- and Cl- and dust particles in the slurry. In order to ensure the desulfurization effect, the quality of the slurry must be maintained, and the generated waste liquid needs to be discharged for further treatment. There are more sulfites, sulfates and suspended solids in the desulfurization wastewater, and there are more acidic substances in the desulfurization wastewater, which are often highly corrosive, which will cause corrosion to the equipment and system, and even lead to wastewater leakage and mechanical failure. Therefore, it must be taken seriously and appropriate treatment methods must be used to ensure that the wastewater is treated and discharged in a qualified manner and recycled;

[0004] During use, existing desulfurization wastewater treatment equipment usually adds neutralizers and flocculants into the wastewater to promote the coagulation of suspended matter and colloidal substances, and separates the suspended matter and sediment in the wastewater through gravity sedimentation. However, in the existing desulfurization wastewater treatment equipment, suspended matter and colloidal substances cannot be fully intercepted, which easily leads to some suspended matter and colloidal substances being pumped out along with the wastewater. Summary of the invention

[0005] In view of the problem in the prior art that suspended matter and colloidal substances cannot be fully intercepted, which easily leads to some suspended matter and colloidal substances being pumped out along with the wastewater, the purpose of the present invention is to provide a desulfurization wastewater treatment equipment for a thermal power plant.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A desulfurization wastewater treatment device for a thermal power plant comprises a stirring barrel, a water inlet pipe is fixedly connected to the top of the stirring barrel, a first L-shaped plate is fixedly connected to the top of the stirring barrel, a motor is arranged on the inner side of the first L-shaped plate, a connecting shaft is fixedly connected to the output end of the motor, the bottom end of the connecting shaft is rotatably connected to the stirring barrel, a first gear is fixedly connected to the outer surface of the connecting shaft, a stirring shaft is rotatably connected to the stirring barrel, the stirring shaft rotatably penetrates the upper end of the stirring barrel, a second L-shaped plate is fixedly connected to the top of the stirring barrel, the stirring shaft rotatably penetrates the upper end of the second L-shaped plate, and the stirring shaft A second gear is fixedly connected to the outer surface, and the second gear is meshed with the first gear. A fixing frame is symmetrically fixedly connected to the top of the mixing barrel, and an electric push rod is fixedly connected to the middle part of the two fixing frames. The telescopic end of the electric push rod is fixedly connected to a connecting rod, and the connecting rod slides through the upper end of the mixing barrel. The bottom ends of the two connecting rods are fixedly connected to the same circular block, and the inner wall of the circular block is rotatably connected to four fan-shaped filter screens, and the four fan-shaped filter screens are arranged in a circle, and the bottom end of one of the fan-shaped filter screens is fixedly connected to an arc filter screen, and a plurality of stirring rods are arranged on the stirring shaft.

[0008] Optionally, four mounting grooves are provided on the circular ring block, the inner walls of the four mounting grooves are rotatably connected to a rotating shaft, the four fan-shaped filter screens are respectively fixedly connected to the corresponding rotating shafts, the outer surface of the rotating shaft is fixedly connected to a worm wheel, the inner bottom wall of the mounting groove is rotatably connected to a worm, the worm and the worm wheel cooperate with each other, the outer surface of the worm is fixedly connected to a third gear, the middle part of the circular ring block is rotatably connected to a gear ring, the gear ring and the third gear are meshed with each other, and a rotating component for rotating the worm is provided on the mixing barrel.

[0009] Optionally, the rotating assembly includes a rotating rod, which is slidably connected to the mixing barrel, and the rotating rod slides through the upper end of the mixing barrel. The top end of the rotating rod is fixedly connected to a knob, and the bottom end of the rotating rod is fixedly connected to a rectangular block, one of the worms is provided with a rectangular groove that cooperates with the rectangular block, and one of the worms passes through the upper end of the circular ring block.

[0010] Optionally, a push column is fixedly connected to the bottom end of the annular block, a trapezoidal block is slidably connected to the inner bottom wall of the mixing barrel, a scraper rod is fixedly connected to one side of the trapezoidal block, and an elastic rope is fixedly connected between the inner wall of the mixing barrel and the trapezoidal block.

[0011] Optionally, a connecting tube is fixedly connected to one of the circular ring blocks, the connecting tube passes through the circular ring block, a rubber sleeve is fixedly connected to the inner wall of the connecting tube, a cross tube is fixedly connected to the bottom end of the connecting tube, four hollow tubes are fixedly connected to the bottom end of the cross tube, the hollow tubes, the cross tubes and the connecting tube are interconnected, and a connecting head is fixedly connected to the top of the mixing barrel.

[0012] Optionally, the stirring shaft is provided with a plurality of receiving grooves symmetrically on the left and right, the inner walls of the plurality of receiving grooves are rotatably connected to a rotating shaft, the plurality of fan-shaped filter screens are respectively fixedly connected to the corresponding rotating shafts, the outer surface of the rotating shaft is fixedly connected to a fourth gear, the middle part of the stirring shaft is slidably connected to a sliding rod, the sliding rod slides through the upper end of the stirring shaft, the top of the sliding rod is fixedly connected to a pulling block, the stirring shaft is provided with a plurality of sliding grooves, the outer surface of the sliding rod is fixedly connected to a plurality of rack plates, the plurality of rack plates are respectively slidably connected to the corresponding sliding grooves, the rack plates are meshed with the fourth gear, and the stirring shaft is provided with a limiting component for limiting the sliding rod.

[0013] Optionally, the limiting assembly includes two fixed plates, both of which are fixedly connected to the top of the stirring shaft, a two-way threaded rod is rotatably connected between the two fixed plates, the two-way threaded rod rotates and passes through one of the fixed plates, a twist block is fixedly connected to one side of the two-way threaded rod, two clamping blocks are threadedly connected to the two-way threaded rod, rubber pads are fixedly connected to the inner sides of the two clamping blocks, a limiting rod is fixedly connected between the two fixed plates, and the two clamping blocks are slidably connected to the limiting rod.

[0014] Optionally, a discharge port is provided on the mixing barrel, a sealing plate is rotatably connected to the inner wall of the discharge port, a sealing gasket is fixedly connected to the side of the sealing plate close to the mixing barrel, a pull ring is fixedly connected to the front end of the sealing plate, a rectangular plate is fixedly connected to one side of the sealing plate, and a fixing component for fixing the sealing plate is provided on the mixing barrel.

[0015] Optionally, the fixed component includes a movable groove, the inner wall of the movable groove is slidably connected to a movable block, a spring is fixedly connected between the inner top wall of the movable groove and the movable block, the front end of the movable block is fixedly connected to a handle, and the bottom end of the handle is fixedly connected to a limiting plate.

[0016] Optionally, a T-shaped sliding block is fixedly connected to the outer surface of the annular block in a bilaterally symmetrical manner, and a T-shaped sliding groove cooperating with the T-shaped sliding block is provided on the mixing barrel.

[0017] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0018] In the above scheme, by providing a fan-shaped filter screen and an arc-shaped filter screen, when it is necessary to separate the suspended matter and sediment in the wastewater, a neutralizer and a flocculant are added to the wastewater in the mixing barrel, and then the motor is started, the output end of the motor drives the connecting shaft and the first gear to rotate, the first gear drives the second gear and the stirring shaft to rotate, the stirring shaft drives a plurality of stirring rods to rotate, and the wastewater, the neutralizer and the flocculant in the mixing barrel are uniformly stirred, so that the wastewater, the neutralizer and the flocculant are fully mixed, and the coagulation of the suspended matter and the colloidal substances in the wastewater is promoted. The suspended matter and the colloidal substances are settled to the bottom of the mixing barrel by the action of gravity, so that the suspended matter and the sediment in the wastewater are separated, and then the electric push rod is started, the telescopic end of the electric push rod drives the connecting rod to move downward, the connecting rod drives the annular block and the fan-shaped filter screen to move downward, the fan-shaped filter screen drives the arc-shaped filter screen to move, and the bottom end of the arc-shaped filter screen contacts the bottom wall of the mixing barrel, the fan-shaped filter screen and the arc-shaped filter screen can intercept and filter the suspended matter and the colloidal substances, so as to facilitate the extraction of the wastewater;

[0019] By providing the fourth gear and the rack plate, when the stirring rod needs to be stored, first release the restriction on the sliding rod, pull the pulling block downward, the pulling block drives the sliding rod to slide downward, the sliding rod drives the rack plate to slide in the sliding groove, the rack plate drives the fourth gear and the rotating shaft to rotate, the rotating shaft drives the stirring rod to rotate into the storing groove for storage, and then, twist the twisting block, the twisting block drives the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the two clamping blocks to approach each other along the length direction of the limit rod, and the clamping block drives the rubber pad to clamp and fix the sliding rod to prevent the sliding rod from sliding freely in the stirring shaft;

[0020] By providing a scraper rod, when the arc filter screen slides downward, when it is necessary to clean the suspended matter and colloidal substances at the bottom of the arc filter screen, the electric push rod is started, and the telescopic end of the electric push rod drives the connecting rod to move downward, and the connecting rod drives the circular ring block and the pushing column to move downward. When the pushing column and the inclined surface of the trapezoidal block contact each other, the pushing column can push the trapezoidal block to slide on the bottom wall of the mixing barrel, and the elastic rope is stretched, and the trapezoidal block drives the scraper rod to clean the suspended matter and colloidal substances at the bottom of the arc filter screen, so as to prevent the suspended matter and colloidal substances from clogging the arc filter screen during the contact between the arc filter screen and the bottom wall of the mixing barrel.

[0021] By providing a sealing plate and a sealing gasket, when the sealing plate needs to be fixed, the handle is pulled upwards, the handle drives the moving block to slide in the moving groove, the spring is compressed, and the moving block drives the pull ring to slide into the moving groove, then, the pull ring is pulled, the pull ring drives the sealing plate and the sealing gasket to rotate, so that the discharge port is opened, then, the suspended matter and colloidal substances in the mixing barrel are cleaned through the discharge port, and after the cleaning is completed, the pull ring is pulled, the pull ring drives the sealing plate, the rectangular plate and the sealing gasket to rotate into the discharge port to seal the discharge port, then, the handle is released, the spring rebounds, the moving block drives the limiting plate to slide to the front end of the rectangular plate to limit the rectangular plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0025] Figure 3 For the present invention Figure 1 A is an enlarged schematic diagram of the structure;

[0026] Figure 4 It is a schematic diagram of the front cross-sectional structure of the mixing barrel of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the arc filter screen of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the connecting pipe, the cross pipe and the hollow pipe of the present invention;

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the circular ring block of the present invention;

[0030] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at B;

[0031] Fig. 9 It is a schematic diagram of the structure of the trapezoidal block, the scraper rod and the elastic rope of the present invention;

[0032] Fig.10 It is a schematic diagram of the front cross-sectional structure of the stirring shaft of the present invention;

[0033] Fig.11 It is a schematic diagram of the structure of the restriction component of the present invention;

[0034] Fig.12 For the present invention Figure 1 Enlarged structural diagram at C;

[0035] Fig.13 It is a schematic diagram of the sealing plate structure of the present invention;

[0036] Fig.14 It is a schematic diagram of the structure of the fixing component of the present invention.

[0037] [Reference Signs]

[0038] 101, mixing barrel; 102, water inlet pipe; 103, first L-shaped plate; 104, motor; 105, connecting shaft; 106, first gear; 107, mixing shaft; 108, second L-shaped plate; 109, second gear; 110, fixing frame; 111, electric push rod; 112, connecting rod; 113, circular ring block; 114, fan-shaped filter screen; 115, arc filter screen; 116, mixing rod; 201, mounting groove; 202, rotating shaft; 203, worm gear; 204, worm; 205, third gear; 206, gear ring; 207, rotating rod; 208, knob; 209, rectangular block; 210, rectangular groove; 211, pushing column; 212, trapezoidal block; 213, scraper rod; 214, connecting rod 215. Pipe connection; 216. Cross pipe; 217. Hollow pipe; 218. Storage slot; 219. Rotating shaft; 220. Fourth gear; 221. Slide bar; 222. Pull block; 223. Sliding slot; 224. Rack plate; 225. Fixed plate; 226. Two-way threaded rod; 227. Twist block; 228. Clamp block; 229. Rubber pad; 230. Limit rod; 231. Discharge port; 232. Sealing plate; 233. Sealing pad; 234. Pull ring; 235. Rectangular plate; 236. Moving slot; 237. Moving block; 238. Spring; 239. Handle; 240. Limit plate; 241. T-shaped slider; 242. T-shaped slide slot; 243. Elastic rope; 244. Connector.

[0039] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0040] The following is a detailed description of a desulfurization wastewater treatment device for a thermal power plant provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0041] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0042] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0043] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0044] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0045] like Figures 1 to 14As shown, an embodiment of the present invention provides a desulfurization wastewater treatment device for a thermal power plant, including a stirring barrel 101, a water inlet pipe 102 is fixedly connected to the top of the stirring barrel 101, a first L-shaped plate 103 is fixedly connected to the top of the stirring barrel 101, a motor 104 is arranged on the inner side of the first L-shaped plate 103, a connecting shaft 105 is fixedly connected to the output end of the motor 104, the bottom end of the connecting shaft 105 is rotatably connected to the stirring barrel 101, a first gear 106 is fixedly connected to the outer surface of the connecting shaft 105, a stirring shaft 107 is rotatably connected to the stirring barrel 101, the stirring shaft 107 rotatably penetrates the upper end of the stirring barrel 101, a second L-shaped plate 108 is fixedly connected to the top of the stirring barrel 101, the stirring shaft 107 rotatably penetrates the second L-shaped plate 108, The outer surface of the stirring shaft 107 is fixedly connected with a second gear 109, and the second gear 109 is meshed with the first gear 106. The top of the stirring barrel 101 is symmetrically fixedly connected with a fixing frame 110, and the middle parts of the two fixing frames 110 are fixedly connected with electric push rods 111, and the telescopic ends of the electric push rods 111 are fixedly connected with connecting rods 112, and the connecting rods 112 slide through the upper end of the stirring barrel 101. The bottom ends of the two connecting rods 112 are fixedly connected with the same circular block 113, and the inner wall of the circular block 113 is rotatably connected with four fan-shaped filter screens 114, and the four fan-shaped filter screens 114 are arranged in a circle, and the bottom end of one of the fan-shaped filter screens 114 is fixedly connected with an arc filter screen 115, and a plurality of stirring rods 116 are arranged on the stirring shaft 107.

[0046] When it is necessary to separate the suspended matter and sediment in the wastewater, a neutralizing agent and a flocculant are added to the wastewater in the mixing barrel 101, and then the motor 104 is started. The output end of the motor 104 drives the connecting shaft 105 and the first gear 106 to rotate, and the first gear 106 drives the second gear 109 and the stirring shaft 107 to rotate. The stirring shaft 107 drives a plurality of stirring rods 116 to rotate, and the wastewater, the neutralizing agent and the flocculant in the mixing barrel 101 are uniformly stirred, so that the wastewater, the neutralizing agent and the flocculant are fully mixed, and the coagulation of the suspended matter and the colloidal substances in the wastewater is promoted. The substances settle to the bottom of the mixing barrel 101 by gravity, so that the suspended substances and sediments in the wastewater are separated. Subsequently, the electric push rod 111 is started, and the telescopic end of the electric push rod 111 drives the connecting rod 112 to move downward, and the connecting rod 112 drives the annular block 113 and the fan-shaped filter screen 114 to move downward, and the fan-shaped filter screen 114 drives the arc-shaped filter screen 115 to move, and the bottom end of the arc-shaped filter screen 115 contacts the inner bottom wall of the mixing barrel 101, and the fan-shaped filter screen 114 and the arc-shaped filter screen 115 can intercept and filter the suspended substances and colloidal substances, so as to facilitate the extraction of the wastewater.

[0047] like Figure 7 and Figure 8 As shown, four mounting grooves 201 are provided on the circular ring block 113, and the inner walls of the four mounting grooves 201 are rotatably connected with a rotating shaft 202, and the four fan-shaped filter screens 114 are respectively fixedly connected to the corresponding rotating shafts 202, and the outer surface of the rotating shaft 202 is fixedly connected with a worm wheel 203, and the inner bottom wall of the mounting groove 201 is rotatably connected with a worm 204, and the worm 204 cooperates with the worm wheel 203, and the outer surface of the worm 204 is fixedly connected with a third gear 205, and the middle part of the circular ring block 113 is rotatably connected with a gear ring 206, and the gear ring 206 and the third gear 205 are meshed with each other, and a rotating component for rotating the worm 204 is provided on the mixing barrel 101.

[0048] When the four sector filters 114 need to be spliced, one of the worms 204 is driven to rotate by the rotating assembly, and the worm 204 drives the third gear 205 to rotate, and the third gear 205 drives the gear ring 206 to rotate. When the gear ring 206 rotates, it drives the other third gear 205 and the worm 204 to rotate, and the worm 204 drives the worm wheel 203 and the rotating shaft 202 to rotate, and the rotating shaft 202 drives the sector filter 114 to flip, and the sector filter 114 is rotated to a horizontal direction, so that the four sector filters 114 are in contact with the outer surface of the stirring shaft 107, thereby completing the splicing of the sector filter 114, which is convenient for separating the wastewater, neutralizer and flocculant in the stirring barrel 101. When the sector filter 114 is idle, the rotating assembly is rotated in the opposite direction to rotate the four sector filters 114 to a vertical direction, so that one side of the four sector filters 114 is in contact with the inner wall of the stirring barrel 101 to avoid affecting the rotation of the stirring rod 116.

[0049] like Figure 8 As shown, the rotating assembly includes a rotating rod 207, which is slidably connected to the mixing barrel 101, and the rotating rod 207 slides through the upper end of the mixing barrel 101. The top of the rotating rod 207 is fixedly connected with a knob 208, and the bottom of the rotating rod 207 is fixedly connected with a rectangular block 209, one of the worm gears 204 is provided with a rectangular groove 210 that cooperates with the rectangular block 209, and one of the worm gears 204 passes through the upper end of the circular block 113.

[0050] When the worm 204 needs to be rotated, the rotating rod 207 is inserted into the mixing barrel 101, and the rotating rod 207 drives the rectangular block 209. Then, the rotating rod 207 is slid downward, and the rectangular block 209 is inserted into the rectangular groove 210 on the worm 204. Then, the knob 208 is turned, and the knob 208 drives the rotating rod 207 and the rectangular block 209 to rotate, and the rectangular block 209 drives the worm 204 to rotate, so as to facilitate the flipping of the fan-shaped filter 114.

[0051] like Fig. 9As shown, the bottom end of the annular block 113 is fixedly connected to a push column 211, the inner bottom wall of the mixing barrel 101 is slidably connected to a trapezoidal block 212, one side of the trapezoidal block 212 is fixedly connected to a scraper rod 213, and an elastic rope 243 is fixedly connected between the inner wall of the mixing barrel 101 and the trapezoidal block 212.

[0052] When the arc filter 115 slides downward and it is necessary to clean the suspended matter and colloidal substances at the bottom of the arc filter 115, when the annular block 113 slides downward, it can drive the pushing column 211 to move downward. When the pushing column 211 and the inclined surface of the trapezoidal block 212 contact each other, the pushing column 211 can push the trapezoidal block 212 to slide on the inner bottom wall of the mixing barrel 101, and the elastic rope 243 is stretched. The trapezoidal block 212 drives the scraper 213 to clean the suspended matter and colloidal substances at the lower end of the arc filter 115 to prevent the suspended matter and colloidal substances from clogging the arc filter 115 during the contact between the arc filter 115 and the inner bottom wall of the mixing barrel 101.

[0053] like Figure 6 As shown, a connecting pipe 214 is fixedly connected to one of the circular blocks 113, and the connecting pipe 214 passes through the circular block 113. A rubber sleeve 215 is fixedly connected to the inner wall of the connecting pipe 214. A cross tube 216 is fixedly connected to the bottom end of the connecting pipe 214, and four hollow tubes 217 are fixedly connected to the bottom end of the cross tube 216. The hollow tubes 217, the cross tubes 216 and the connecting pipe 214 are connected, and a connector 244 is fixedly connected to the top of the mixing barrel 101.

[0054] When it is necessary to discharge the waste water in the arc filter 115, the external water pipe is inserted into the connecting pipe 214 through the connecting head 244, and the external water pipe can be tightly connected through the rubber sleeve 215 to avoid leakage between the external water pipe and the connecting pipe 214 during the waste water discharge process. Subsequently, the waste water in the arc filter 115 is pumped into the connecting pipe 214 through the hollow pipe 217 and the cross pipe 216, and discharged through the external water pipe, so that the waste water is separated from the suspended matter and the colloidal substances, and the waste water at the bottom of the mixing barrel 101 is pumped out.

[0055] like Fig.10As shown, the stirring shaft 107 is provided with a plurality of receiving grooves 218 symmetrically on the left and right, and the inner walls of the plurality of receiving grooves 218 are rotatably connected with a rotating shaft 219, and the plurality of fourth gears 220 are respectively fixedly connected to the corresponding rotating shafts 219, and the outer surface of the rotating shaft 219 is fixedly connected with the fourth gear 220, and the middle part of the stirring shaft 107 is slidably connected with a slide bar 221, and the slide bar 221 slides through the upper end of the stirring shaft 107, and the top of the slide bar 221 is fixedly connected with a pull block 222, and the stirring shaft 107 is provided with a plurality of sliding grooves 223, and the outer surface of the slide bar 221 is fixedly connected with a plurality of rack plates 224, and the plurality of rack plates 224 are respectively slidably connected in the corresponding sliding grooves 223, and the rack plates 224 are meshed with the fourth gear 220, and the stirring shaft 107 is provided with a limiting component for limiting the slide bar 221.

[0056] When the stirring rod 116 needs to be stored, the pull block 222 is pulled downward, the pull block 222 drives the slide bar 221 to slide downward, the slide bar 221 drives the rack plate 224 to slide in the sliding groove 223, the rack plate 224 drives the fourth gear 220 and the rotating shaft 219 to rotate, the rotating shaft 219 drives the stirring rod 116 to rotate into the storage groove 218 for storage, and then, the slide bar 221 is restricted by the limiting component to prevent the slide bar 221 from sliding at will.

[0057] like Fig.11 As shown, the limiting assembly includes two fixed plates 225, and the two fixed plates 225 are fixedly connected to the top of the stirring shaft 107. A bidirectional threaded rod 226 is rotatably connected between the two fixed plates 225, and the bidirectional threaded rod 226 rotates and passes through one of the fixed plates 225. A screw block 227 is fixedly connected to one side of the bidirectional threaded rod 226, and two clamping blocks 228 are threadedly connected to the bidirectional threaded rod 226. The inner sides of the two clamping blocks 228 are fixedly connected with rubber pads 229. A limiting rod 230 is fixedly connected between the two fixed plates 225, and the two clamping blocks 228 are slidably connected to the limiting rod 230.

[0058] When it is necessary to restrict the slide bar 221, the screw block 227 is turned, and the screw block 227 drives the bidirectional threaded rod 226 to rotate. The bidirectional threaded rod 226 drives the two clamping blocks 228 to approach each other along the length direction of the limit rod 230. The clamping block 228 drives the rubber pad 229 to clamp and fix the slide bar 221 to prevent the slide bar 221 from sliding freely in the stirring shaft 107.

[0059] like Figure 1 and Fig.13As shown, a discharge port 231 is opened on the mixing barrel 101, and a sealing plate 232 is rotatably connected to the inner wall of the discharge port 231. A sealing gasket 233 is fixedly connected to the side of the sealing plate 232 close to the mixing barrel 101, a pull ring 234 is fixedly connected to the front end of the sealing plate 232, and a rectangular plate 235 is fixedly connected to one side of the sealing plate 232. A fixing component for fixing the sealing plate 232 is provided on the mixing barrel 101.

[0060] When it is necessary to clean the suspended matter and colloidal substances in the mixing barrel 101, the restriction on the sealing plate 232 is released by the fixing component, and then the pull ring 234 is pulled, which drives the sealing plate 232 and the sealing gasket 233 to rotate, so that the discharge port 231 is opened, and then the suspended matter and colloidal substances in the mixing barrel 101 are cleaned through the discharge port 231.

[0061] like Figure 12 to Figure 14 As shown, the fixed component includes a movable groove 236, the inner wall of the movable groove 236 is slidably connected with a movable block 237, a spring 238 is fixedly connected between the inner top wall of the movable groove 236 and the movable block 237, the front end of the movable block 237 is fixedly connected with a handle 239, and the bottom end of the handle 239 is fixedly connected with a limiting plate 240.

[0062] When it is necessary to fix the sealing plate 232, the handle 239 is pulled upward, and the handle 239 drives the moving block 237 to slide in the moving groove 236. The spring 238 is compressed, and the moving block 237 drives the pull ring 234 to slide into the moving groove 236. Then, the pull ring 234 is pulled, and the pull ring 234 drives the sealing plate 232 and the sealing gasket 233 to rotate, so that the discharge port 231 is opened. Then, the suspended matter and colloidal substances in the mixing barrel 101 are cleaned through the discharge port 231. After the cleaning is completed, the pull ring 234 is pulled, and the pull ring 234 drives the sealing plate 232, the rectangular plate 235 and the sealing gasket 233 to rotate into the discharge port 231 to seal the discharge port 231. Then, the handle 239 is released, the spring 238 rebounds, and the moving block 237 drives the limiting plate 240 to slide to the front end of the rectangular plate 235 to limit the rectangular plate 235.

[0063] like Figure 4 As shown, a T-shaped sliding block 241 is fixedly connected to the outer surface of the annular block 113 in a bilaterally symmetrical manner, and a T-shaped sliding groove 242 cooperating with the T-shaped sliding block 241 is provided on the mixing barrel 101 .

[0064] By providing a T-shaped slider 241 and a T-shaped slot 242, when the annular block 113 is sliding, the T-shaped slider 241 can be driven to slide in the T-shaped slot 242. The T-shaped slot 242 can guide and limit the T-shaped slider 241 and the annular block 113. The T-shaped slider 241 slides in the T-shaped slot 242, which can also improve the stability of the annular block 113 during the sliding process.

[0065] The working process of the technical solution provided by the present invention is as follows:

[0066] When in use, a neutralizing agent and a flocculant are added to the wastewater in the mixing barrel 101, and then the motor 104 is started. The output end of the motor 104 drives the connecting shaft 105 and the first gear 106 to rotate, the first gear 106 drives the second gear 109 and the stirring shaft 107 to rotate, and the stirring shaft 107 drives the plurality of stirring rods 116 to rotate, so as to uniformly stir the wastewater, the neutralizing agent and the flocculant in the mixing barrel 101, so that the wastewater, the neutralizing agent and the flocculant are fully mixed, and the coagulation of the suspended matter and the colloidal substances in the wastewater is promoted. The suspended matter and the colloidal substances are settled to the bottom of the mixing barrel 101 by the action of gravity, so that the suspended matter and the sediment in the wastewater are separated.

[0067] Then, twist the screw block 227, which drives the bidirectional threaded rod 226 to rotate, and the bidirectional threaded rod 226 drives the two clamping blocks 228 to move away from each other along the length direction of the limit rod 230, thereby releasing the restriction on the slide rod 221. Subsequently, pull the pull block 222 downward, and the pull block 222 drives the slide rod 221 to slide downward, and the slide rod 221 drives the rack plate 224 to slide in the sliding groove 223, and the rack plate 224 drives the fourth gear 220 and the rotating shaft 219 to rotate, and the rotating shaft 219 drives the stirring rod 116 to rotate into the storage groove 218 for storage.

[0068] Then, the screw block 227 is turned, and the screw block 227 drives the bidirectional threaded rod 226 to rotate. The bidirectional threaded rod 226 drives the two clamping blocks 228 to approach each other along the length direction of the limit rod 230. The clamping block 228 drives the rubber pad 229 to clamp and fix the sliding rod 221. Then, the rotating rod 207 is inserted into the mixing barrel 101, and the rotating rod 207 drives the rectangular block 209. Then, the rotating rod 207 is slid downward to insert the rectangular block 209 into the rectangular groove 210 on the worm 204. Then, the knob 208 is turned, and the knob 208 drives the rotating rod 207 and the rectangular block 209 rotates, the rectangular block 209 drives one of the worms 204 to rotate, the worm 204 drives the third gear 205 to rotate, the third gear 205 drives the gear ring 206 to rotate, when the gear ring 206 rotates, it drives the other three third gears 205 and the worm 204 to rotate, the worm 204 drives the worm wheel 203 and the rotating shaft 202 to rotate, the rotating shaft 202 drives the fan-shaped filter screen 114 to flip, and rotate the fan-shaped filter screen 114 from the vertical direction to the horizontal direction, so that the four fan-shaped filter screens 114 are in contact with the outer surface of the stirring shaft 107.

[0069] Then, the electric push rod 111 is started, and the telescopic end of the electric push rod 111 drives the connecting rod 112 to move downward, and the connecting rod 112 drives the annular block 113, so that the annular block 113 drives the T-shaped sliding block 241 to slide in the T-shaped sliding groove 242 on the mixing barrel 101, and the annular block 113 drives the fan-shaped filter screen 114 and the pushing column 211 to move downward. When the pushing column 211 and the inclined surface of the trapezoidal block 212 contact each other, the pushing column 211 can push the trapezoidal block 212 slides on the bottom wall of the mixing barrel 101, the elastic rope 243 is stretched, the trapezoidal block 212 drives the scraper rod 213 to clean the suspended matter and colloidal substances at the bottom end of the arc filter 115, and the fan-shaped filter 114 drives the arc filter 115 to move downward, so that the bottom end of the arc filter 115 contacts the bottom wall of the mixing barrel 101, and the fan-shaped filter 114 and the arc filter 115 can intercept the suspended matter and colloidal substances to the bottom of the mixing barrel 101.

[0070] Then, the external water pipe is inserted into the connecting pipe 214 through the connecting head 244, and the external water pipe and the connecting pipe 214 are tightly connected through the rubber sleeve 215. Subsequently, the waste water in the arc filter 115 is pumped into the connecting pipe 214 through the hollow pipe 217 and the cross pipe 216, and discharged through the external water pipe, so that the waste water is separated from the suspended matter and the colloidal substances, and the waste water at the bottom of the mixing barrel 101 is pumped out. When the waste water in the mixing barrel 101 is drained, the handle 239 is pulled upward, and the handle 239 drives the moving block 237 to slide in the moving groove 236, the spring 238 is compressed, and the moving block 237 drives the pull ring 234 Slide into the movable groove 236, then, pull the pull ring 234, the pull ring 234 drives the sealing plate 232 and the sealing gasket 233 to rotate, so that the discharge port 231 is opened, and then, the suspended matter and colloidal substances in the mixing barrel 101 are cleaned through the discharge port 231. After the cleaning is completed, pull the pull ring 234, the pull ring 234 drives the sealing plate 232, the rectangular plate 235 and the sealing gasket 233 to rotate into the discharge port 231 to seal the discharge port 231, and then, release the handle 239, the spring 238 rebounds, and the movable block 237 drives the limiting plate 240 to slide to the front end of the rectangular plate 235 to limit the rectangular plate 235.

[0071] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A desulfurization wastewater treatment equipment for a thermal power plant, comprising a stirring barrel, characterized in that: The top of the mixing barrel is fixedly connected to a water inlet pipe, the top of the mixing barrel is fixedly connected to a first L-shaped plate, the inner side of the first L-shaped plate is provided with a motor, the output end of the motor is fixedly connected to a connecting shaft, the bottom end of the connecting shaft is rotatably connected to the mixing barrel, the outer surface of the connecting shaft is fixedly connected to a first gear, the mixing barrel is rotatably connected to a mixing shaft, the mixing shaft rotatably penetrates the upper end of the mixing barrel, and the top of the mixing barrel is fixedly connected to a second L-shaped plate; The stirring shaft rotates and passes through the second L-shaped plate, and the outer surface of the stirring shaft is fixedly connected to the second gear, and the second gear is meshed with the first gear. The top of the stirring barrel is symmetrically fixedly connected to a fixing frame, and the middle parts of the two fixing frames are fixedly connected to electric push rods, and the telescopic ends of the electric push rods are fixedly connected to connecting rods, and the connecting rods slide through the upper end of the stirring barrel. The bottom ends of the two connecting rods are fixedly connected to the same circular block, and the inner wall of the circular block is rotatably connected to four fan-shaped filter screens, and the four fan-shaped filter screens are arranged in a circle, and the bottom end of one of the fan-shaped filter screens is fixedly connected to an arc filter screen, and multiple stirring rods are arranged on the stirring shaft.

2. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 1, characterized in that: The circular ring block is provided with four mounting grooves, the inner walls of the four mounting grooves are rotatably connected with a rotating shaft, the four fan-shaped filter screens are respectively fixedly connected to the corresponding rotating shafts, the outer surface of the rotating shaft is fixedly connected with a worm wheel, the inner bottom wall of the mounting groove is rotatably connected with a worm, the worm and the worm wheel cooperate with each other, the outer surface of the worm is fixedly connected with a third gear, the middle part of the circular ring block is rotatably connected with a gear ring, the gear ring and the third gear are meshed with each other, and a rotating component for rotating the worm is provided on the mixing barrel.

3. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 2, characterized in that: The rotating assembly includes a rotating rod, which is slidably connected to the mixing barrel and slides through the upper end of the mixing barrel. A knob is fixedly connected to the top end of the rotating rod, and a rectangular block is fixedly connected to the bottom end of the rotating rod. A rectangular groove that cooperates with the rectangular block is opened on one of the worms, and one of the worms passes through the upper end of the circular ring block.

4. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 3, characterized in that: The bottom end of the annular block is fixedly connected with a pushing column, the inner bottom wall of the mixing barrel is slidably connected with a trapezoidal block, one side of the trapezoidal block is fixedly connected with a scraper rod, and an elastic rope is fixedly connected between the inner wall of the mixing barrel and the trapezoidal block.

5. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 4, characterized in that: A connecting pipe is fixedly connected to one of the circular ring blocks, and the connecting pipe passes through the circular ring block. A rubber sleeve is fixedly connected to the inner wall of the connecting pipe. A cross pipe is fixedly connected to the bottom end of the connecting pipe. Four hollow pipes are fixedly connected to the bottom end of the cross pipe. The hollow pipes, cross pipes and connecting pipes are interconnected, and a connecting head is fixedly connected to the top of the mixing barrel.

6. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 1, characterized in that: The stirring shaft is provided with a plurality of storage grooves symmetrically on the left and right, the inner walls of the plurality of storage grooves are rotatably connected with a rotating shaft, the plurality of fan-shaped filter screens are respectively fixedly connected to the corresponding rotating shafts, the outer surface of the rotating shaft is fixedly connected with a fourth gear, the middle part of the stirring shaft is slidably connected with a slide rod, the slide rod slides through the upper end of the stirring shaft, the top of the slide rod is fixedly connected with a pull block, the stirring shaft is provided with a plurality of sliding grooves, the outer surface of the slide rod is fixedly connected with a plurality of rack plates, the plurality of rack plates are respectively slidably connected in the corresponding sliding grooves, the rack plates are meshed with the fourth gear, and the stirring shaft is provided with a limiting component for limiting the slide rod.

7. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 6, characterized in that: The limiting assembly includes two fixed plates, both of which are fixedly connected to the top of the stirring shaft, a bidirectional threaded rod is rotatably connected between the two fixed plates, the bidirectional threaded rod rotatably passes through one of the fixed plates, a twist block is fixedly connected to one side of the bidirectional threaded rod, two clamping blocks are threadedly connected to the bidirectional threaded rod, rubber pads are fixedly connected to the inner sides of the two clamping blocks, a limiting rod is fixedly connected between the two fixed plates, and the two clamping blocks are slidably connected to the limiting rod.

8. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 7, characterized in that: The mixing barrel is provided with a discharge port, the inner wall of the discharge port is rotatably connected with a sealing plate, a sealing gasket is fixedly connected to a side of the sealing plate close to the mixing barrel, a pull ring is fixedly connected to the front end of the sealing plate, a rectangular plate is fixedly connected to one side of the sealing plate, and a fixing component for fixing the sealing plate is provided on the mixing barrel.

9. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 8, characterized in that: The fixing assembly includes a moving groove, the inner wall of the moving groove is slidably connected with a moving block, a spring is fixedly connected between the inner top wall of the moving groove and the moving block, the front end of the moving block is fixedly connected with a handle, and the bottom end of the handle is fixedly connected with a limiting plate.

10. The desulfurization wastewater treatment equipment for a thermal power plant according to claim 1, characterized in that: The outer surface of the annular block is fixedly connected with a T-shaped sliding block symmetrically on the left and right, and the mixing barrel is provided with a T-shaped sliding groove that cooperates with the T-shaped sliding block.

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