Water reducer waste gas treatment device and treatment method thereof

Abstract

The invention discloses a water reducer waste gas treatment device and a treatment method thereof, and belongs to the technical field of waste gas treatment. In order to solve the problems that an existing product is difficult to efficiently separate impurities in circulating treatment liquid, and follow-up waste gas treatment is affected, the following technical scheme is provided, the device comprises a spraying tower, a liquid circulating assembly and a storage box, and a washing part used for waste gas washing and a treatment liquid purification mechanism used for waste liquid treatment are arranged in the spraying tower. The spraying part is additionally arranged below the bottom filler layer, so that the sprayed treatment liquid forms a water curtain effect, waste gas primarily entering the spraying tower is efficiently cooled, the service life of the internal structure of a product is prolonged, the treatment liquid purifying mechanism is further arranged in the spraying tower, and the treatment liquid purifying mechanism is convenient to clean. And the liquid in the state is filtered under the action of centrifugal force, so that the effectiveness of the treatment liquid during recycling and the high efficiency of waste gas treatment are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, and particularly relates to a water reducing agent waste gas treatment device and a treatment method thereof. BACKGROUND

[0002] The water reducing agent is a kind of concrete additive that can reduce the amount of mixing water while maintaining the slump of concrete basically, and mostly belongs to anionic surfactants, such as lignosulfonate, naphthalene sulfonate formaldehyde polymer, etc. The water reducing agent produces high-temperature waste gas in the production process. If the high-temperature waste gas is directly discharged without treatment, it may affect the environment and human health. In the prior art, the high-temperature waste gas is pretreated to reduce the content of dust and other impurities and to reduce the temperature, and then the treated waste gas is transported to a spray tower for water washing, and then biological treatment is performed to purify the waste gas. The water washing of the spray tower is very important for waste gas treatment.

[0003] A kind of spray tower for chemical waste gas treatment is disclosed in a kind of authorized announcement No. CN118105814B Chinese patent, including spray tower, window, gas-liquid separation structure, baffle one and baffle two, the upper part of baffle one and baffle two is provided with spray structure, the spray structure includes main pipeline, and one side of main pipeline is provided with a group of spray pipes.

[0004] Although the technical scheme in the above patent document realizes convenient maintenance of the spray structure while ensuring spray treatment of the waste gas, it still has the following defects: although the waste gas entering the spray tower has been subjected to the pretreatment step, the content of dust and other impurities and the temperature have been reduced, but the waste gas still inevitably contains dust and other impurities, and the cooling effect of the pretreatment stage is limited, so that the waste gas entering the spray tower still has a certain temperature. The continuous delivery of the waste gas to the spray tower for a long time can accelerate the damage of the internal structure of the spray tower; after the treatment liquid sprayed by the spray tower contacts the waste gas, the waste liquid containing dust and other impurities will be collected at the bottom under the action of gravity, which can easily lead to an increase in the content of impurities in the treatment liquid, and then when the treatment liquid is circulated and sprayed, the impurities can flow with the circulation of the treatment liquid, which not only makes it difficult to ensure the spray treatment effect of the subsequent waste gas, but also easily affects the overall waste gas treatment efficiency. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the application provides a water-reducing agent waste gas treatment device and a treatment method thereof, wherein a spraying member is additionally arranged below the bottom filler layer, so that the treatment liquid sprayed by the spraying member forms a water curtain effect, thereby efficiently cooling the waste gas initially entering the spraying tower, prolonging the service life of the internal structure of the product, and the internal part of the spraying tower is further provided with a treatment liquid purification mechanism, so as to intercept the liquid contacted with the waste gas, and realize the filtration treatment of the liquid in this state by the action of centrifugal force, thereby guaranteeing the effectiveness of the treatment liquid in the recycling process and the high efficiency of the waste gas treatment, so as to solve the problems in the above background art.

[0006] In order to achieve the above-mentioned purpose, the application provides the following technical scheme: The technical scheme of the first aspect is a water-reducing agent waste gas treatment device, comprising a spraying tower, a liquid circulation assembly and a storage box, the internal part of the spraying tower is provided with a water washing component for water washing of waste gas and a treatment liquid purification mechanism for treatment of waste liquid, wherein the treatment liquid purification mechanism is located below the water washing component; The water washing component comprises a demister body, a carrier net disc, a support frame and a spraying mechanism, wherein the carrier net disc comprises two, is longitudinally and linearly distributed in the internal part of the spraying tower, and the upper part of each carrier net disc is filled with a filler for contacting gas, the carrier net disc and the filler jointly constitute a filler layer, an annular carrier is integrally arranged on the inner wall of the spraying tower, the annular carrier is located above the top filler layer, the demister body is located above the annular carrier for demisting of the exhaust gas, the support frame is arranged at the bottom of the annular carrier, the spraying mechanism is rotatably connected to the support frame, and the spraying mechanism penetrates through the two filler layers, the liquid circulation assembly is connected to the spraying mechanism for circulation of the treatment liquid; The treatment liquid purification mechanism comprises a partition plate, a hopper, a filter assembly, a driving assembly, a knocking assembly, a transmission assembly, a rotary connecting piece two and a impurity discharge pipe, wherein the partition plate and the hopper are integrally arranged on the inner wall of the spraying tower, and the hopper is located above the partition plate for collecting and converging the waste liquid, the filter assembly is rotatably connected to the bottom end of the hopper, the driving assembly and the knocking assembly are arranged on the partition plate, wherein the driving assembly is used for driving the filter assembly to rotate, the knocking assembly is used for knocking the hopper and the filter assembly, and the filter assembly is connected to the spraying mechanism through the transmission assembly.

[0007] As a further scheme of the present application, the spraying mechanism comprises a hollow pipe, a rotating connecting piece one, a spraying piece and a vibration assembly, wherein the top end of the hollow pipe penetrates through the support frame, and the hollow pipe and the support frame are rotationally connected through a bearing, the rotating connecting piece one is arranged at the top end of the hollow pipe, the liquid circulating assembly comprises a circulating water pump arranged on the spraying tower, a conduit is mounted at the input end of the circulating water pump, the bottom end of the conduit extends into the inside of the spraying tower, a delivery pipe is mounted at the output end of the circulating water pump, and the top end of the delivery pipe also extends into the inside of the spraying tower and is connected with the rotating connecting piece one; The bottom end of the hollow pipe penetrates through two filler layers and is integrally provided with an end seat for plugging the bottom hole, the spraying piece comprises three spraying pieces which are longitudinally and linearly distributed on the outer shell wall of the hollow pipe, wherein the upper two spraying pieces are located above the corresponding filler layers, and the lowermost spraying piece is below the bottom filler layer for cooling the waste gas, and the inner cavity of the hollow pipe and the inner cavities of the spraying pieces are mutually penetrated for guaranteeing the flow of the treatment liquid.

[0008] As a further scheme of the present application, the vibration assembly comprises two vibration assemblies which are sleeved on the hollow pipe and are located below the corresponding filler layers, the vibration assembly comprises a sleeve ring which is slidingly connected to the outer shell wall of the hollow pipe, two straight plates are symmetrically arranged on the outer shell wall of the sleeve ring, a plurality of vibration pieces for vibrating the object net disc are horizontally and linearly arranged on the top of each straight plate, two contact rods are symmetrically arranged on the top of the sleeve ring, a rolling ball is rollingly connected to the top end of each contact rod, and an extrusion spring is sleeved between the sleeve ring and the corresponding spraying piece on the hollow pipe. The object net disc comprises a net disc body which is integrally arranged on the inner wall of the spraying tower, two arc-shaped wedges are symmetrically arranged on the bottom of the net disc body, and the rolling ball rollingly contacts with the arc-shaped wedges.

[0009] As a further scheme of the present application, the discharge end of the hopper penetrates the center of the partition plate, the filtering assembly comprises a filtering barrel, a scraping piece and an umbrella-shaped flow guide piece, wherein the feeding end of the filtering barrel is connected with the discharge end of the hopper through a bearing, and a splicing plate is integrally arranged in the inside of the feeding end of the filtering barrel, the scraping piece and the umbrella-shaped flow guide piece are arranged in the inside of the filtering barrel, wherein the scraping piece is used for cleaning the impurities on the peripheral wall of the filtering barrel, and the umbrella-shaped flow guide piece is fixedly connected to the bottom shell wall of the splicing plate through bolts for centrifugal flow guiding of the waste liquid entering into the filtering assembly. The scraping piece comprises a plurality of cleaning rings which are longitudinally and linearly distributed, and the cleaning rings are connected through L-shaped rod groups.

[0010] As a further further scheme of the present application, the driving assembly comprises a motor arranged on the top shell wall of the partition plate, a rotating shaft is arranged on the output end of the motor, the bottom end of the rotating shaft penetrates through the partition plate and is arranged with a driving gear, a driven gear ring is arranged on the side of the driving gear, and the driven gear ring is arranged on the filter barrel.

[0011] As a further further scheme of the present application, the knocking assembly comprises three, which are movably connected to the partition plate in the circumferential direction, the knocking assembly comprises three circular holes arranged on the partition plate in the circumferential direction, each circular hole is movably connected with a curved rod, the top end of each curved rod is above the partition plate and is fixedly connected with an end disc, the top end of the end disc is fixedly connected with a top rod for knocking the hopper, a reset spring is arranged between the end disc and the partition plate and located on the curved rod, a protruding rod is further arranged on the curved rod and located below the partition plate, a plurality of arc-shaped plates are arranged on the top shell wall of the filter barrel in the circumferential direction, and an inclined groove is arranged on each arc-shaped plate and in sliding contact with the protruding rod.

[0012] As a further further scheme of the present application, the transmission assembly comprises a shaft, a scraper and a linkage frame, the linkage frame comprises two, which are arranged on the front and rear sides of the shaft, the top end of the linkage frame is fixedly connected to the corresponding vibration assembly, and the bottom end of the linkage frame is arranged on the scraping member, the scraper is fixedly connected to the side wall of the shaft and used for scraping and cleaning the hopper, the top end of the shaft is fixedly connected to the hollow pipe through bolts, and the bottom end of the shaft is fixedly connected to the spliced plate through bolts.

[0013] As a further further scheme of the present application, the second rotary connecting member is arranged on the discharge port at the bottom of the filter barrel, the top end of the impurity discharge pipe is arranged on the second rotary connecting member, the bottom end of the impurity discharge pipe penetrates through the rear shell wall of the spray tower, and a control valve is further arranged on the impurity discharge pipe, the receiving box is arranged behind the spray tower, and the bottom end of the impurity discharge pipe is arranged on the receiving box.

[0014] As a further further scheme of the present application, the left shell wall of the spray tower is arranged with an air inlet pipe for the entry of the waste gas to be treated, the top end of the spray tower is arranged with an air outlet pipe for the discharge of the treated gas, and a plurality of observation windows are arranged on the front shell wall of the spray tower in a longitudinal linear manner.

[0015] The technical scheme of the second aspect is a processing method of a water reducing agent waste gas treatment device, which comprises the following steps: Step 1: Equipment pre-run. The liquid circulation component and drive component are started by the external controller to circulate the treatment liquid in the spray tower to the spray mechanism. The treatment liquid is sprayed out from the spray mechanism to spray each packing layer. The operation of the drive component drives the filter component to rotate, so that each striking component is struck and vibrated. The filter component drives the spray mechanism to rotate synchronously through the transmission component, thereby improving the uniformity of the treatment liquid spraying. Step 2: Waste gas washing. The pre-treated waste gas is transported from the inlet pipe to the inside of the spray tower through the external fan. The waste gas first comes into contact with the water curtain formed by the treatment liquid to achieve rapid cooling. Then the waste gas flows from bottom to top towards the outlet pipe. After being treated by the double-layer packing layer, the gas comes into contact with the demister body. The demister body removes the mist from the gas, and then the gas is discharged from the outlet pipe. Step 3: Waste liquid purification. The treated liquid that has come into contact with the waste gas falls under the action of gravity and then flows into the filter assembly under the collection of the hopper. The waste liquid entering the filter assembly falls onto the umbrella-shaped guide in the filter assembly. Since the filter assembly is rotating at this time, the waste liquid on the umbrella-shaped guide in the filter assembly is thrown onto the peripheral wall of the filter barrel in the filter assembly by centrifugal force. At this time, the synchronous rotation of the filter barrel in the filter assembly realizes the centrifugal separation of the waste liquid. The liquid is thrown out and falls to the bottom of the spray tower for subsequent recycling, while impurities are blocked. Step 4: Self-cleaning of impurities. During the rotation of the spray mechanism, each vibrating component in the spray mechanism also moves up and down synchronously. When the vibrating components in the spray mechanism move up and down, they not only vibrate the corresponding carrying mesh, but also drive the scraping parts in the filter assembly to move up and down synchronously through the transmission component. When the scraping parts in the filter assembly move up and down, they scrape and clean the periphery of the filter barrel in the filter assembly. Then, the cleaned impurities fall to the bottom of the filter barrel in the treatment liquid purification mechanism and collect under the action of gravity and some liquid. Step 5: Impurity collection. The control valve on the discharge pipe is opened by the external controller, so that the collected impurities are discharged into the storage box by rotating the connector and the discharge pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By adding a spray element below the bottom packing layer, the sprayed treatment liquid forms a water curtain effect, which can effectively cool the waste gas entering the spray tower and extend the service life of the internal structure of the product. 2. A vibration component is installed below each packing layer. During the rotation of the spraying mechanism, the vibration component moves up and down synchronously in a circular motion, thereby knocking and vibrating the carrier mesh in each packing layer. On the one hand, it accelerates the falling speed of the droplets on it, and on the other hand, the vibration of the carrier mesh causes the packing material it carries to shake, avoiding the packing material from being statically exposed to exhaust gas for a long time and causing the holes to become blocked, thus ensuring the equipment's effectiveness in treating exhaust gas. 3. The spray tower is equipped with a liquid purification mechanism to intercept the liquid that has come into contact with the waste gas and to filter the liquid in this state by using centrifugal force, so as to ensure the effectiveness of the liquid during recycling and the high efficiency of waste gas treatment. 4. The drive component in the treatment liquid purification mechanism drives the rotation of the filter component. During the rotation of the filter component, the spraying mechanism is driven to rotate through the transmission component, thereby increasing the spraying range of the treatment liquid. In addition, the transmission component transmits the lifting force of the bottom vibration component while transmitting the rotational force, so that the scraping parts in the filter component can move up and down to achieve scraping and cleaning of the inner wall of the filter barrel. 5. During the rotation of the filter component in the treatment liquid purification mechanism, the synchronous drive of the knocking component is adjusted, thereby knocking and vibrating the filter barrel and hopper. On the one hand, this speeds up the entry of liquid containing impurities into the filter barrel, and on the other hand, it facilitates the rapid collection of impurities attached to the inner wall of the filter barrel, reducing the risk of its mesh being blocked. Attached Figure Description

[0017] Figure 1 A schematic diagram of a three-dimensional structure of a water-reducing agent waste gas treatment device. Figure 1 ; Figure 2 A schematic diagram of a three-dimensional structure of a water-reducing agent waste gas treatment device. Figure 2 ; Figure 3 for Figure 1 A partial sectional view of the structure; Figure 4 for Figure 3 A schematic diagram of the structure viewed from below; Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point A; Figure 6 for Figure 4 Schematic diagram of the load-bearing mesh and spraying mechanism Figure 1 ; Figure 7 for Figure 4 Schematic diagram of the load-bearing mesh and spraying mechanism Figure 2 ; Figure 8 for Figure 6A magnified schematic diagram of the local structure at point B; Figure 9 for Figure 3 A schematic diagram of the treatment liquid purification mechanism; Figure 10 for Figure 9 A front view structural diagram; Figure 11 for Figure 9 A schematic diagram of the structure viewed from below; Figure 12 for Figure 9 A schematic diagram of the scraping component structure; Figure 13 for Figure 9 A schematic diagram of the striking component structure.

[0018] In the diagram: 1. Spray tower; 2. Demister body; 3. Loading tray; 31. Tray body; 32. Arc-shaped wedge; 4. Support frame; 5. Spraying mechanism; 51. Hollow tube; 52. Rotary connector one; 53. Spraying component; 54. Vibration assembly; 541. Collar; 542. Straight plate; 543. Vibrating component; 544. Contact rod; 6. Treatment liquid purification mechanism; 61. Baffle plate; 62. Hopper; 63. Filter assembly; 631. Filter barrel; 632. Scraper; 6321. Cleaning ring; 6322. L-shaped rod assembly; 633. Umbrella-shaped guide; 64. Drive assembly; 641. Motor; 642. Drive gear; 643. Driven gear ring; 65. Striking assembly; 651. Bending rod; 652. Top rod; 653. Protruding rod; 654. Arc plate; 66. Transmission assembly; 661. Shaft; 662. Scraper; 663. Linkage frame; 67. Rotary connector II; 68. Waste discharge pipe; 7. Liquid circulation assembly; 8. Storage box. Detailed Implementation

[0019] Please see Figures 1-3 In this embodiment of the invention, a water-reducing agent waste gas treatment device includes a spray tower 1, a liquid circulation component 7 and a storage box 8. The spray tower 1 is provided with a water washing component for waste gas water washing and a treatment liquid purification mechanism 6 for waste liquid treatment. The treatment liquid purification mechanism 6 is located below the water washing component. The upper water washing component treats the exhaust gas entering the spray tower 1, while the lower treatment liquid purification mechanism 6 filters the waste liquid that has come into contact with the exhaust gas. Please see Figures 3-5In this embodiment of the invention, the water washing component includes a demister body 2, a carrying mesh tray 3, a support frame 4, and a spraying mechanism 5. There are two carrying mesh trays 3, which are linearly distributed in the middle of the spray tower 1. Each carrying mesh tray 3 is filled with a packing material for contacting the gas. The carrying mesh tray 3 and the packing material together form a packing layer. The packing material is set to improve the dust collection efficiency by increasing the gas-liquid contact area. The demister body 2 is set to dehumidify the emitted gas. A carrier ring is integrally installed on the inner wall of the spray tower 1. The carrier ring is located above the top packing layer. The demister body 2 is located above the carrier ring and is used to demister the exhaust gas. The support frame 4 is mounted on the bottom of the carrier ring by bolt connection. The spraying mechanism 5 is rotatably connected to the support frame 4 and passes through two packing layers. The liquid circulation component 7 is connected to the spraying mechanism 5 for the circulation of the treatment liquid. The rotation of the spraying mechanism 5 enables the treatment liquid to be sprayed in a rotating manner, ensuring the uniformity of the treatment liquid sprayed to each packing layer. Please see Figures 3-4 and Figures 9-11 In this embodiment of the invention, the treatment liquid purification mechanism 6 includes a partition 61, a hopper 62, a filter assembly 63, a drive assembly 64, a striking assembly 65, a transmission assembly 66, a rotating connector 67, and a waste discharge pipe 68. The partition 61 and the hopper 62 are integrally disposed on the inner wall of the spray tower 1, and the hopper 62 is located above the partition 61 for collecting and converging waste liquid. The gap between the partition 61 and the hopper 62 serves as a working space to facilitate the sealed configuration of the drive assembly 64. The working space is provided with heat dissipation holes on the spray tower 1 around its perimeter to ensure the safe operation of the drive assembly 64. The filter assembly 63 is rotatably connected to the bottom of the hopper 62, so that all the waste liquid collected in the hopper 62 enters the filter assembly 63. The drive assembly 64 and the striking assembly 65 are both set on the partition plate 61. The drive assembly 64 is used to drive the filter assembly 63 to rotate, and the striking assembly 65 is used to strike the hopper 62 and the filter assembly 63. The striking of the hopper 62 by the striking assembly 65 accelerates the speed and thoroughness of the flow of the waste liquid collected in it to the filter assembly 63, while the striking of the filter assembly 65 by the striking assembly 65 is used to improve the efficiency of collecting the residual impurities after filtration. The filter assembly 63 is connected to the spray mechanism 5 through the transmission assembly 66, so that the spray mechanism 5 is driven to rotate synchronously when the filter assembly 63 rotates.

[0020] Please see Figures 3-8In this embodiment of the invention, the spraying mechanism 5 includes a hollow tube 51, a rotating connector 52, a spraying component 53, and a vibration assembly 54. The top end of the hollow tube 51 passes through the support frame 4, and the hollow tube 51 and the support frame 4 are rotatably connected by a bearing. The hollow tube 51 adopts a tubular structure with an internal cavity. It is made of various materials. In this embodiment, it is made of a high-temperature resistant hollow cylinder. Its top end is rotatably connected to the support frame 4 through a bearing, so that the hollow tube 51 can rotate around its own axis, thereby driving the various spraying parts 53 on it to perform circumferential movement, realizing the spraying of the treatment liquid and improving the uniformity of the treatment liquid spraying. Rotary connector 52 is located at the top of hollow tube 51. End seat is a sealing structure for the bottom of hollow tube 51. Specifically, it can be achieved by welding a sealing plate to prevent liquid from leaking from the bottom of the tube and to maintain the pressure inside the tube. The liquid circulation assembly 7 includes a circulating water pump installed on the spray tower 1. The input end of the circulating water pump is equipped with a conduit, the bottom end of which extends into the interior of the spray tower 1. The output end of the circulating water pump is equipped with a delivery pipe, the top end of which also extends into the interior of the spray tower 1 and is connected to the rotating connector 52. Rotary connector 52 is a rotatable sealing joint used to connect the delivery pipe and the hollow pipe 51. Specifically, it can be implemented using a quick-install flange structure with a rotary sealing ring to ensure that the liquid does not leak during the delivery process. The bottom end of the hollow tube 51 extends through two packing layers and is integrally provided with an end seat for sealing the bottom hole. There are three spray elements 53, which are longitudinally linearly distributed on the outer shell wall of the hollow tube 51. The two upper spray elements 53 are located above the corresponding packing layers, and the lowermost spray element 53 is located below the bottom packing layer for cooling the exhaust gas. The inner cavity of the hollow tube 51 is interconnected with the inner cavity of each spray element 53 to ensure the flow of the treatment liquid. The circulating water pump draws the treatment liquid from the bottom of the spray tower 1 through the conduit and then transports it to the rotary connector 52 through the conveying pipe. After the treatment liquid enters the inner cavity of the hollow tube, it is evenly distributed to the three spray elements 53 through the through structure. Combined with the rotational movement of the hollow tube 51, it drives each spray element 53 to perform circumferential movement, so that the spraying range covers the entire cross-section of each packing layer. The spraying of the two spray elements 53 above allows the treatment liquid to come into contact with the packing layer, increasing the contact area and reaction time between the exhaust gas and the treatment liquid. The treatment liquid sprayed by the bottom spray element 53 forms a water curtain, which directly cools the rising high-temperature exhaust gas again, reducing the long-term thermal stress impact of the exhaust gas temperature on the internal structure of the tower.

[0021] The vibration assembly 54 includes two components, both of which are sleeved on the hollow tube 51. The two vibration assemblies 54 are located below the corresponding filler layer, so that each vibration assembly 54 can knock and rotate the load mesh 3 in the corresponding filler layer. The vibration assembly 54 includes a collar 541 slidably connected to the outer shell wall of the hollow tube 51. Two straight plates 542 are symmetrically arranged on the outer circumferential wall of the collar 541. Each straight plate 542 has multiple vibrating elements 543 for vibrating the load tray 3 arranged laterally and linearly on its top. Two contact rods 544 are symmetrically arranged on the top of the collar 541. Each contact rod 544 has a ball bearing rolledly connected to its top. A compression spring located on the hollow tube 51 is sleeved between the collar 541 and the corresponding spraying element 53. Multiple grooves are provided on the outer shell wall of the hollow tube 51 along the circumferential direction. A slider is slidably connected in each groove. The side of the slider away from the groove is fixedly connected to the inner wall of the corresponding collar 541 to ensure the stability of the lifting movement of the collar 541. The load-carrying mesh tray 3 includes a mesh tray body 31 integrally set on the inner wall of the spray tower 1. Two arc-shaped wedges 32 are symmetrically arranged on the bottom of the mesh tray body 31, and the ball bearings are in rolling contact with the arc-shaped wedges 32. When the hollow tube 51 rotates, each vibration component 54 rotates along with the hollow tube 51. When the vibration component 54 rotates, the balls on the two contact rods 544 on the collar 541 roll into contact with the inclined surface of the corresponding arc-shaped wedge block 32 in the carrying tray 3 during the circumferential movement. Thus, with the cooperation of the compression spring, the collar 541 performs synchronous lifting and lowering movements as it rotates with the hollow tube 51, driving each vibration component 543 to strike and rotate the corresponding tray body 31.

[0022] Please see Figures 3-13 In this embodiment of the invention, the discharge end of the hopper 62 passes through the center of the partition 61. The filter assembly 63 includes a filter barrel 631, a scraper 632, and an umbrella-shaped guide 633. The feed end of the filter barrel 631 is connected to the discharge end of the hopper 62 through a bearing. The feed end of the filter barrel 631 is integrally provided with a splicing plate. The umbrella-shaped guide 633 is composed of a connecting column and a conical cover. The connecting column is welded to the top of the conical cover. The top of the conical cover is provided with multiple arc-shaped guide strips along the circumferential direction. When the umbrella-shaped guide 633 rotates, it is used to evenly disperse the waste liquid to the barrel wall area of ​​the filter barrel 631. Both the scraper 632 and the umbrella-shaped guide 633 are located inside the filter barrel 631. The scraper 632 is used to clean impurities on the periphery of the filter barrel 631, and the umbrella-shaped guide 633 is fixedly connected to the bottom shell wall of the splicing plate by bolts and is used to centrifugally guide the waste liquid entering the filter assembly 63. The diameter of the conical shroud in the umbrella-shaped guide 633 is larger than the feed end of the filter barrel 631, thereby ensuring that the waste liquid entering the filter barrel 631 falls onto the umbrella-shaped guide 633 first. When the filter bucket 631 rotates, the scraping part 632 and the umbrella-shaped guide part 633 inside rotate synchronously. At this time, the waste liquid falling on the umbrella-shaped guide part 633 splashes towards the peripheral wall of the filter bucket 631 under the action of its rotational centrifugal force. The waste liquid falling on the peripheral wall of the filter bucket 631 is also discharged through the pores under the action of rotational centrifugal force, while impurities are intercepted.

[0023] The scraping component 632 includes a plurality of cleaning rings 6321 arranged linearly in the longitudinal direction. The plurality of cleaning rings 6321 are connected by an L-shaped rod group 6322. The L-shaped rod group 6322 is composed of two L-shaped rods arranged symmetrically front and rear. The plurality of cleaning rings 6321 are arranged longitudinally on the two symmetrical L-shaped rods.

[0024] The drive assembly 64 includes a motor 641 disposed on the top shell wall of the partition 61. A rotating shaft is installed on the output end of the motor 641. The bottom end of the rotating shaft passes through the partition 61 and is equipped with a drive gear 642. A driven gear ring 643 meshes with the drive gear 642 on its side. The driven gear ring 643 is disposed on the filter barrel 631. The motor 641 drives the drive gear 642 to rotate via the rotating shaft. The drive gear 642 meshes with the driven gear ring 643, thereby causing the filter barrel 631 in the filter assembly 63 to move.

[0025] The striking assembly 65 includes three parts, which are movably connected to the partition 61 along the circumferential direction. The striking assembly 65 includes three circular holes opened on the partition 61 along the circumferential direction. A bending rod 651 is movably connected to each circular hole. The top end of each bending rod 651 is above the partition 61 and is fixedly connected to an end plate. The top end of the end plate is fixedly connected to a top rod 652 for striking the hopper 62. The top end of the top rod 652 and the bottom end of the bending rod 651 are provided with rubber heads to reduce damage to the object being struck and prevent its deformation. A return spring is sleeved between the end plate and the partition plate 61 and located on the bending rod 651. The bending rod 651 is also provided with a protruding rod 653, which is located below the partition plate 61. Multiple arc-shaped plates 654 are provided on the top shell wall of the filter barrel 631 along the circumferential direction. Each arc-shaped plate 654 is provided with an inclined groove, which slides in contact with the protruding rod 653. As the filter barrel 631 rotates, the multiple arc-shaped plates 654 arranged on it also rotate. During the rotation, the inclined grooves on each arc-shaped plate 654 come into contact with the protruding rods 653 in the circumferentially distributed striking components 65. When the protruding rod 653 enters the inclined groove, the bending rod 651 moves down and stretches the return spring. When the protruding rod 653 leaves the inclined groove, the bending rod 651 and the top rod 652 return to their original positions under the action of the return spring. Then, the bending rod 651 strikes the filter barrel 631, and the top rod 652 strikes the hopper 62.

[0026] The transmission assembly 66 includes a shaft 661, a scraper 662, and a linkage frame 663. There are two linkage frames 663, which are distributed on the front and rear sides of the shaft 661. The top of the linkage frame 663 is fixedly connected to the corresponding vibration assembly 54, and the bottom of the linkage frame 663 is set on the scraper 632. The scraper 662 is fixedly connected to the side wall of the shaft 661 for scraping and cleaning the hopper 62. The top of the shaft 661 is fixedly connected to the hollow tube 51 by bolts, and the bottom of the shaft 661 is fixedly connected to the splicing plate by bolts. Due to the setting of the shaft 661, the filter assembly 63 rotates synchronously, driving the hollow tube 51 in the spray mechanism 5 to rotate. During the rotation of the hollow tube 51, the various spray components 53 and the vibration assembly 54 are driven to perform circumferential motion. When the bottom vibration assembly 54 is in the lifting and lowering motion, it drives the scraping component 632 in the filter assembly 63 to perform synchronous lifting and lowering motion through the linkage frame 663, thereby scraping and cleaning the peripheral wall of the filter barrel 631.

[0027] Rotary connector 2 67 is installed on the discharge port at the bottom of filter tank 631. The top end of discharge pipe 68 is installed on rotary connector 2 67, and the bottom end of discharge pipe 68 penetrates the rear shell wall of spray tower 1. A control valve is also installed on discharge pipe 68. Collection box 8 is located at the rear of spray tower 1, and the bottom end of discharge pipe 68 is installed on collection box 8. The control valve facilitates the discharge of impurities in filter assembly 63, while collection box 8 is used to collect impurities discharged by discharge pipe 68. There are various connection methods between discharge pipe 68 and collection box 8, mainly focusing on convenient disassembly and assembly, such as threaded connection, to facilitate the processing of impurities in collection box 8.

[0028] An air inlet pipe is installed on the left side shell wall of the spray tower 1 for the entry of the waste gas to be treated. An air outlet pipe is installed at the top of the spray tower 1 for the discharge of the treated gas. Multiple observation windows are arranged longitudinally on the front shell wall of the spray tower 1. The observation windows not only facilitate the staff to observe the internal condition of the spray tower 1, but also facilitate the staff to inspect and maintain the internal structure of the spray tower 1 through the observation windows.

[0029] The present invention proposes a treatment method for waste gas from a water-reducing agent treatment device, the method comprising the following steps: Step 1: Equipment pre-run. The external controller starts the liquid circulation component 7 and the drive component 64 in the treatment liquid purification mechanism 6. At this time, the circulating water pump in the liquid circulation component 7 circulates the treatment liquid in the spray tower 1 to the spray mechanism 5. The treatment liquid is sprayed out from each spray element 53 in the spray mechanism 5 to spray each packing layer. The treatment liquid sprayed out by the bottom spray element 53 forms a water curtain to contact and cool the exhaust gas that has just entered the spray tower 1. The operation of the drive component 64 drives the filter component 63 to rotate, causing each striking component 65 to vibrate. The movement of the filter component 63 drives the spraying mechanism 5 to rotate synchronously through the transmission component 66, thereby improving the uniformity of the treatment liquid spraying. Step 2: Waste gas washing. The pre-treated waste gas is transported from the inlet pipe to the interior of the spray tower 1 by an external fan. After entering the spray tower 1, the waste gas first comes into contact with the water curtain formed by the treatment liquid, achieving rapid cooling. Then, the waste gas flows from bottom to top towards the outlet pipe. After being treated by the double-layer packing, the gas comes into contact with the demister body 2. The demister body 2 performs demisting treatment on the gas. Then, the gas is discharged from the outlet pipe. The contact between the water curtain and the gas cools the gas on one hand, and the water curtain is formed by the treatment liquid. After contacting the gas, combined with the subsequent double packing layer configuration, it achieves efficient adsorption treatment of the gas. Step 3: Waste liquid purification. The treatment liquid that has come into contact with the waste gas falls off under the action of gravity, and then flows into the filter assembly 63 under the collection of hopper 62. The waste liquid entering the filter assembly 63 falls onto the umbrella-shaped guide 633 in the filter assembly 63. Since the filter assembly 63 is rotating at this time, the waste liquid on the umbrella-shaped guide 633 in the filter assembly 63 is thrown by centrifugal force onto the peripheral wall of the filter barrel 631 in the filter assembly 63. At this time, the synchronous rotation of the filter bucket 631 in the filter assembly 63 achieves centrifugal separation of the waste liquid. The liquid is thrown out and falls to the bottom of the spray tower 1, which is convenient for subsequent recycling, while impurities are blocked. Step 4: Self-cleaning of impurities. During the rotation of the spray mechanism 5, each vibration component 54 in the spray mechanism 5 also moves up and down synchronously. During the up and down movement, the vibration component 54 in the spray mechanism 5 not only vibrates the corresponding load tray 3, thereby causing the load tray 3 to shake and accelerate the drop of liquid droplets that have come into contact with the exhaust gas, but also causes the filler material in each filler layer to shake, thus preventing the filler material from caking. While the vibration component 54 is moving up and down, it also drives the scraper 632 in the filter component 63 to move up and down synchronously through the linkage frame 663 in the transmission component 66. The scraper 632 in the filter component 63 scrapes and cleans the peripheral wall of the filter barrel 631 in the filter component 63 during the up and down movement. Then, the cleaned impurities fall to the bottom of the filter barrel 631 in the treatment liquid purification mechanism 6 under the action of gravity and some liquid. Step 5: Impurity collection. When it is necessary to clean the impurities in the filter assembly 63, the control valve on the discharge pipe 68 is opened by the external controller body, so that the collected impurities are discharged into the storage box 8 by rotating the connector 67 and the discharge pipe 68.

[0030] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water-reducing agent waste gas treatment device, comprising a spray tower (1), a liquid circulation assembly (7), and a collection box (8), characterized in that: The spray tower (1) is equipped with a water washing component for waste gas washing and a treatment liquid purification mechanism (6) for waste liquid treatment, wherein the treatment liquid purification mechanism (6) is located below the water washing component. The water washing component includes a demister body (2), a carrier mesh tray (3), a support frame (4), and a spraying mechanism (5). There are two carrier mesh trays (3), which are linearly distributed in the interior of the spray tower (1). Each carrier mesh tray (3) is filled with packing material for contacting the gas. The carrier mesh tray (3) and the packing material together form a packing layer. A carrier ring is integrally provided on the inner wall of the spray tower (1). The carrier ring is located above the top packing layer. The demister body (2) is located above the carrier ring and is used to demister the discharged gas. The support frame (4) is located at the bottom of the carrier ring. The spraying mechanism (5) is rotatably connected to the support frame (4) and the spraying mechanism (5) penetrates the two packing layers. The liquid circulation component (7) is connected to the spraying mechanism (5) for the circulation of the treatment liquid. The treatment liquid purification mechanism (6) includes a partition (61), a hopper (62), a filter assembly (63), a drive assembly (64), a striking assembly (65), a transmission assembly (66), a rotating connector (67), and a waste discharge pipe (68). The partition (61) and the hopper (62) are integrally set on the inner wall of the spray tower (1), and the hopper (62) is located above the partition (61) for collecting and converging waste liquid. The filter assembly (63) is rotatably connected to the bottom end of the hopper (62). The drive assembly (64) and the striking assembly (65) are both set on the partition (61). The drive assembly (64) is used to drive the filter assembly (63) to rotate, and the striking assembly (65) is used to strike the hopper (62) and the filter assembly (63). The filter assembly (63) is connected to the spray mechanism (5) through the transmission assembly (66).

2. The water-reducing agent waste gas treatment device according to claim 1, characterized in that, The spraying mechanism (5) includes a hollow tube (51), a rotating connector (52), a spraying component (53), and a vibration assembly (54). The top end of the hollow tube (51) passes through the support frame (4), and the hollow tube (51) and the support frame (4) are rotatably connected by a bearing. The rotating connector (52) is located at the top end of the hollow tube (51). The liquid circulation assembly (7) includes a circulating water pump installed on the spraying tower (1). The input end of the circulating water pump is equipped with a conduit, the bottom end of which extends into the interior of the spraying tower (1). The output end of the circulating water pump is equipped with a delivery pipe, the top end of which also extends into the interior of the spraying tower (1) and is connected to the rotating connector (52). The bottom end of the hollow tube (51) passes through two packing layers and is integrally provided with an end seat for sealing the bottom hole. The spray element (53) includes three, which are longitudinally linearly distributed on the outer shell wall of the hollow tube (51). The two upper spray elements (53) are located above the corresponding packing layers, and the lowermost spray element (53) is located below the bottom packing layer for cooling the exhaust gas. The inner cavity of the hollow tube (51) is interconnected with the inner cavity of each spray element (53) to ensure the flow of the treatment liquid.

3. The water-reducing agent waste gas treatment device according to claim 2, characterized in that, The vibration assembly (54) includes two components, both of which are sleeved on the hollow tube (51), and the two vibration assemblies (54) are respectively located below the corresponding filler layer. The vibration assembly (54) includes a collar (541) slidably connected to the outer shell wall of the hollow tube (51). Two straight plates (542) are symmetrically arranged on the outer circumferential wall of the collar (541). Each straight plate (542) has multiple vibrating elements (543) for vibrating the load tray (3) arranged horizontally and linearly on its top. The collar (541) has two contact rods (544) symmetrically arranged front and back on its top. Each contact rod (544) has a ball bearing rolled at its top. A compression spring located on the hollow tube (51) is sleeved between the collar (541) and the corresponding spraying element (53). The loading mesh tray (3) includes a mesh tray body (31) integrally set on the inner wall of the spray tower (1). Two arc-shaped wedges (32) are symmetrically arranged on the bottom of the mesh tray body (31), and the ball bearings are in rolling contact with the arc-shaped wedges (32).

4. The water-reducing agent waste gas treatment device according to claim 3, characterized in that, The discharge end of the hopper (62) passes through the center of the partition (61). The filter assembly (63) includes a filter barrel (631), a scraper (632), and an umbrella-shaped guide (633). The feed end of the filter barrel (631) is connected to the discharge end of the hopper (62) through a bearing. The feed end of the filter barrel (631) is integrally provided with a splicing plate. The scraper (632) and the umbrella-shaped guide (633) are both located inside the filter barrel (631). The scraper (632) is used to clean impurities on the periphery of the filter barrel (631). The umbrella-shaped guide (633) is fixedly connected to the bottom shell wall of the splicing plate by bolts and is used to centrifugally guide the waste liquid entering the filter assembly (63). The scraping component (632) includes a plurality of cleaning rings (6321) arranged linearly in the longitudinal direction, and the plurality of cleaning rings (6321) are connected to each other by an L-shaped rod assembly (6322).

5. The water-reducing agent waste gas treatment device according to claim 4, characterized in that, The drive assembly (64) includes a motor (641) disposed on the top shell wall of the partition (61). A rotating shaft is installed on the output end of the motor (641). The bottom end of the rotating shaft passes through the partition (61) and is equipped with a drive gear (642). A driven gear ring (643) meshes with the side of the drive gear (642). The driven gear ring (643) is disposed on the filter barrel (631).

6. The water-reducing agent waste gas treatment device according to claim 4, characterized in that, The striking assembly (65) includes three parts, which are movably connected to the partition (61) along the circumferential direction. The striking assembly (65) includes three circular holes opened on the partition (61) along the circumferential direction. A curved rod (651) is movably connected in each circular hole. The top of each curved rod (651) is above the partition (61) and is fixedly connected to an end plate. The top of the end plate is fixedly connected to a top rod (652) for striking the hopper (62). A return spring is sleeved between the end plate and the partition (61) on the curved rod (651). A protruding rod (653) is also provided on the curved rod (651). The protruding rod (653) is located below the partition (61). Multiple arc-shaped plates (654) are arranged along the circumferential direction on the top shell wall of the filter barrel (631). Each arc-shaped plate (654) is provided with an inclined groove. The inclined groove is in sliding contact with the protruding rod (653).

7. The water-reducing agent waste gas treatment device according to claim 4, characterized in that, The transmission assembly (66) includes a shaft (661), a scraper (662), and a linkage frame (663). There are two linkage frames (663), which are distributed on the front and rear sides of the shaft (661). The top of the linkage frame (663) is fixedly connected to the corresponding vibration assembly (54), and the bottom of the linkage frame (663) is set on the scraper (632). The scraper (662) is fixedly connected to the side wall of the shaft (661) for scraping and cleaning the hopper (62). The top of the shaft (661) is fixedly connected to the hollow tube (51) by bolts, and the bottom of the shaft (661) is fixedly connected to the splicing plate by bolts.

8. The water-reducing agent waste gas treatment device according to claim 4, characterized in that, The rotating connector 2 (67) is located on the discharge port at the bottom of the filter barrel (631). The top end of the discharge pipe (68) is installed on the rotating connector 2 (67). The bottom end of the discharge pipe (68) penetrates the rear shell wall of the spray tower (1). A control valve is also provided on the discharge pipe (68). The storage box (8) is located behind the spray tower (1). The bottom end of the discharge pipe (68) is located on the storage box (8).

9. The water-reducing agent waste gas treatment device according to claim 1, characterized in that, An air inlet pipe is installed on the left side shell wall of the spray tower (1) for the entry of the waste gas to be treated. An air outlet pipe is provided at the top of the spray tower (1) for the discharge of the treated gas. Multiple observation windows are arranged longitudinally on the front shell wall of the spray tower (1).

10. A method for treating waste gas from a water-reducing agent treatment device according to any one of claims 1-9, characterized in that, The method includes the following steps: Step 1: Pre-run of equipment. The liquid circulation component (7) and drive component (64) are started by the external controller to circulate the treatment liquid in the spray tower (1) to the spray mechanism (5). The treatment liquid is sprayed out from the spray mechanism (5) to spray each packing layer. The operation of the drive component (64) drives the filter component (63) to rotate, so that each striking component (65) performs striking vibration. The filter component (63) drives the spray mechanism (5) to rotate synchronously through the transmission component (66) to improve the uniformity of the treatment liquid spray. Step 2: Waste gas washing. The pre-treated waste gas is transported from the inlet pipe to the inside of the spray tower (1) through the external fan body. The waste gas first comes into contact with the water curtain formed by the treatment liquid to achieve rapid cooling. Then the waste gas flows from bottom to top towards the outlet pipe. After the gas is treated by the double packing layer, it comes into contact with the demister body (2). The gas is demisted by the demister body (2) and then discharged from the outlet pipe. Step 3: Waste liquid purification. The treated liquid that has come into contact with the waste gas falls under the action of gravity and then flows into the filter assembly (63) under the collection of the hopper (62). The waste liquid entering the filter assembly (63) falls onto the umbrella-shaped guide (633) in the filter assembly (63). Since the filter assembly (63) is rotating at this time, the waste liquid on the umbrella-shaped guide (633) in the filter assembly (63) is thrown onto the peripheral wall of the filter barrel (631) in the filter assembly (63) by centrifugal force. At this time, the synchronous rotation of the filter barrel (631) in the filter assembly (63) realizes the centrifugal separation of the waste liquid. The liquid is thrown out and falls to the bottom of the spray tower (1) for easy subsequent recycling, while impurities are blocked. Step 4: Self-cleaning of impurities. During the rotation of the spray mechanism (5), each vibration component (54) in the spray mechanism (5) also moves up and down synchronously. During the up and down movement, the vibration component (54) in the spray mechanism (5) not only vibrates the corresponding load tray (3), but also drives the scraper (632) in the filter assembly (63) to move up and down synchronously through the transmission component (66). During the up and down movement, the scraper (632) in the filter assembly (63) scrapes and cleans the periphery of the filter bucket (631) in the filter assembly (63). Then, the cleaned impurities fall to the bottom of the filter bucket (631) in the treatment liquid purification mechanism (6) under the action of gravity and some liquid and collect. Step 5: Impurity collection. The control valve on the discharge pipe (68) is opened by the external controller body, so that the collected impurities are discharged into the storage box (8) by rotating the connector (67) and the discharge pipe (68).

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