Hazardous waste and waste gas treatment spray tower

Abstract

The invention discloses a hazardous waste waste gas treatment spray tower, belongs to the technical field of spray towers, and aims to solve the problems that a large amount of waste gas is not in full contact with spray liquid in the rising process and the waste gas is wasted because the waste gas rises in an irregular diffusion manner, the spray range of a fixed spray assembly is limited and the spray liquid only can cover a local area in the tower. The spraying tower comprises a spraying tower body, a gas inlet piece is arranged on one side of the spraying tower body, a liquid storage piece is installed in the spraying tower body, the gas inlet piece communicates with the liquid storage piece, a first driving piece is installed in the liquid storage piece, and a plurality of swing pieces are further installed in the liquid storage piece; the three-stage treatment mode of pre-washing of the liquid storage part, cyclone separation of the spiral Venturi tube and precise coupling of rotary spraying is adopted, full-coverage removal of large-particle-size particles, fine particles, viscous glue mist and water-soluble gaseous pollutants is achieved, and compared with a traditional fixed spraying technology, the removal rate of the fine particles and the gaseous pollutants is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spray tower, in particular to a hazardous waste gas treatment spray tower. BACKGROUND

[0002] The hazardous waste gas is complex in composition, usually containing strong acid, strong base, heavy metal dust, sticky organic matter, toxic and harmful gaseous pollutants, etc., and has the characteristics of strong corrosion, large fluctuation of pollutant concentration, wide particle size span, etc. If it is directly discharged without effective treatment, it will cause serious harm to the ecological environment and human health. As a commonly used waste gas treatment equipment, the spray tower is widely used in the purification treatment of hazardous waste gas due to its simple structure and convenient operation.

[0003] At present, the hazardous waste gas treatment spray tower usually directly introduces the waste gas into the inside of the spray tower body, and sprays the spray liquid downward through the fixed spray assembly arranged in the tower. Since the waste gas rises in irregular diffusion, the spray range of the fixed spray assembly is limited, and the spray liquid can only cover a local area in the tower. As a result, a large amount of waste gas does not fully contact with the spray liquid during the rising process, which finally leads to the difficulty in stabilizing the emission concentration of waste gas to meet the standard.

[0004] In view of the above problems, a hazardous waste gas treatment spray tower is provided. SUMMARY

[0005] The present application aims to provide a hazardous waste gas treatment spray tower, which solves the problem of the difficulty in stabilizing the emission concentration of waste gas to meet the standard due to the limited spray range of the fixed spray assembly, the spray liquid only covering a local area in the tower, and a large amount of waste gas not fully contacting with the spray liquid during the rising process.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A hazardous waste gas treatment spray tower, comprising a spray tower body, a gas inlet arranged on one side of the spray tower body, a liquid storage device arranged in the inside of the spray tower body and communicated with the gas inlet, a first driving device arranged in the inside of the liquid storage device, a plurality of swing devices arranged in the inside of the liquid storage device and connected with the first driving device, a spiral venturi arranged on one side of the liquid storage device, a filter screen fixedly arranged in the inside of the spray tower body, a liquid delivery device arranged on one side of the spray tower body, a communication pipe arranged on one end of the liquid delivery device and penetratingly connected to one side of the spray tower body, a supporting plate fixedly arranged in the inside of the spray tower body, a spray device rotatably connected to one side of the supporting plate, the communication pipe being rotatably connected with the spray device and communicated with the spray device, a second driving device arranged on one side of the supporting plate and drivingly connected with the spray device.

[0007] Further, the air inlet member comprises a one-way valve and a first air inlet pipe arranged on one side of the one-way valve, the one-way valve is fixedly connected with the spray tower body, one end of the one-way valve is communicated with a second air inlet pipe, and the second air inlet pipe penetrates and is connected to the spray tower body and one side of the liquid storage member.

[0008] Further, the liquid storage member comprises a liquid storage cylinder and a wind collecting cover fixedly installed on one side of the liquid storage cylinder, a first liquid outlet pipe is arranged on one side of the liquid storage cylinder, and the first liquid outlet pipe penetrates and is connected to one side of the spray tower body.

[0009] Further, the first driving member comprises a first vertical cylinder and a first sliding column slidingly connected in the first vertical cylinder, four connecting plates are uniformly installed on the surface of the first sliding column, the four connecting plates are slidingly connected with the first vertical cylinder, a pressing column is installed on one side of each of the four connecting plates, and the pressing column is slidingly connected with the swinging member, a cylinder is fixedly installed in the first vertical cylinder, four first springs are uniformly installed on one end of the first sliding column, one end of each of the four first springs is fixedly connected with the cylinder, a sliding rod is further installed on one end of the first sliding column and slidingly connected with the cylinder, a magnet block is fixedly installed on one end of the sliding rod, and an electromagnet is fixedly installed in the bottom end of the first vertical cylinder.

[0010] Further, the swinging member comprises a second vertical cylinder and a second sliding column slidingly connected in the second vertical cylinder, the pressing column is slidingly connected with the second vertical cylinder and fixedly connected with the second sliding column, a second spring is fixedly installed on one end of the second sliding column, one end of the second spring is fixedly connected with the second vertical cylinder, four swinging plates are relatively uniformly installed on the surface of the second sliding column, and the swinging plates are slidingly connected with the second vertical cylinder.

[0011] Further, the spiral Venturi tube comprises a converging pipe and a spiral pipe installed on one end of the converging pipe, and the spiral pipe is communicated with a diffuser pipe at one end.

[0012] Further, a spiral groove is formed in the spiral pipe.

[0013] Further, the liquid conveying member comprises a box body and a partition plate fixedly installed in the box body, a second liquid outlet pipe is arranged on one side of the box body, a liquid inlet pipe is further arranged on one side of the box body, a pump body is communicated with one end of the box body, the pump body is fixedly connected with the spray tower body, a pipeline is communicated with one side of the pump body, and the pipeline is communicated with the communication pipe.

[0014] Further, the spraying member comprises a spraying plate and a hollow pipe fixedly installed on one side of the spraying plate, the communication pipe is rotationally connected with the hollow pipe, the hollow pipe is rotationally connected with the supporting plate, and a first bevel gear is fixedly installed on the surface of the hollow pipe.

[0015] Further, the second driving member comprises a protective shell and a cylinder connected to one end of the protective shell, the cylinder is connected to one side of the spray tower body, a motor is installed in the cylinder, a rotating shaft is fixedly installed at the output end of the motor, a second bevel gear is fixedly installed at one end of the rotating shaft, the second bevel gear is in meshing connection with the first bevel gear, and two positioning plates are fixedly installed in the protective shell and in rotation connection with the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: 1. The three-stage treatment mode of pre-washing by the liquid storage member, spiral Venturi tube cyclone separation and precise coupling of rotary spraying is adopted, so that the full-coverage removal of large-particle particles, fine particles, sticky fog and water-soluble gaseous pollutants is realized, the removal rate of fine particles and gaseous pollutants is improved compared with the traditional fixed spraying process, and stable and standard emission of waste gas is ensured.

[0017] 2. The central flow concentration of the spiral Venturi tube makes the waste gas concentrate in the central area of the tower body, the rotary spraying member does not need to cover the whole cross section of the tower, and only needs to target spraying to realize full-gas-path coverage, the spraying amount is reduced, the consumption of resources is reduced, and the energy-saving effect is achieved.

[0018] 3. The gas inlet member is directly connected with the liquid storage member to realize waste gas water curtain soaking pretreatment, the spiral Venturi tube restrains the airflow into a central bundled spiral flow, and cooperates with the spiral liquid curtain shearing collision of the rotary spraying to greatly prolong the gas-liquid contact time and increase the contact area, so that insufficient waste gas treatment is prevented.

[0019] 4. The oscillating member reciprocatingly oscillates up and down, on the one hand, breaks the regular bubbles formed by the waste gas in the liquid, and makes the bubbles break into micron-sized small bubbles, greatly increases the contact area of the bubbles and the washing liquid, and on the other hand, drives the liquid in the liquid storage member to form strong turbulent flow, avoids local water body failure due to pollutant enrichment, and strengthens the gas-liquid mass transfer efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the gas inlet member structure of the present application; Figure 3 It is a schematic diagram of the spiral Venturi tube structure of the present application; Figure 4 It is a schematic diagram of the oscillating member structure of the present application; Figure 5 It is a schematic diagram of the Figure 4 structure at position A in the present application; Figure 6 It is a schematic diagram of the Figure 3 structure at position B in the present application; Figure 7 It is a schematic diagram of the liquid delivery member structure of the present application; Figure 8 A structure diagram of a spray tower body of the present application; Figure 9 A structure diagram of a spray tower body of the present application; Figure 8 A structure diagram of a spray tower body of the present application;

[0021] In the figure: 1, spray tower body; 2, air inlet part; 21, one-way valve; 22, first air inlet pipe; 23, second air inlet pipe; 3, liquid storage part; 31, liquid storage cylinder; 32, wind collecting cover; 33, first liquid outlet pipe; 4, first driving part; 41, first vertical cylinder; 42, first sliding column; 43, connecting plate; 44, pressing column; 45, cylinder; 46, first spring; 47, sliding rod; 48, magnet block; 49, electromagnet; 5, swinging part; 51, second vertical cylinder; 52, second sliding column; 53, second spring; 54, swinging plate; 6, spiral Venturi tube; 61, converging pipe; 62, spiral pipe; 621, spiral groove; 63, diffuser pipe; 7, filter screen; 8, liquid conveying part; 81, box body; 82, partition plate; 83, second liquid outlet pipe; 84, liquid inlet pipe; 85, pump body; 86, pipeline; 9, communication pipe; 10, supporting plate; 20, spraying part; 201, spraying plate; 202, hollow pipe; 203, first bevel gear; 30, second driving part; 301, protective shell; 302, cylinder; 303, motor; 304, rotating shaft; 305, second bevel gear; 306, positioning plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0023] In order to solve the technical problem that, due to the irregular diffusion of the exhaust gas, the spray liquid can only cover a local area in the tower, a large amount of exhaust gas is not fully contacted with the spray liquid during the rising process, and finally the exhaust gas emission concentration is difficult to stabilize and meet the standard, such as Figures 1-9 As shown in the figure, the following preferred technical solutions are provided: As shown in the figure, the following preferred technical solutions are provided: Figure 1As shown, a hazardous waste gas treatment spray tower comprises a spray tower body 1, one side of the spray tower body 1 is provided with an air inlet part 2, the air inlet part 2 is connected with an external waste gas exhaust fan, the exhaust fan is prior art, not shown in the figure, a liquid storage part 3 is installed inside the spray tower body 1, and the air inlet part 2 is in communication with the liquid storage part 3, the air inlet part 2 is directly in communication with the liquid storage part 3, so that the hazardous waste gas can directly enter the washing liquid in the liquid storage part 3 without diffusion, avoiding the problem of insufficient gas-liquid contact caused by the diffusion of waste gas before contacting the liquid in the traditional process, realizing water curtain soaking type pre-washing of waste gas, the first driving part 4 is installed inside the liquid storage part 3, and a plurality of swing parts 5 are also installed inside the liquid storage part 3, and the first driving part 4 is connected with the plurality of swing parts 5, the first driving part 4 synchronously drives the plurality of swing parts 5 to reciprocally swing up and down, breaks the regular bubbles formed by the waste gas in the liquid, and makes the bubbles break into micron-sized small bubbles, so as to improve the gas-liquid contact area, strengthen the settlement of large particle size particles and the primary neutralization of water-soluble gas, the swing of the swing part 5 drives the liquid in the liquid storage part 3 to form turbulent flow, avoids the failure of local water body due to pollutant enrichment, maintains the uniformity and treatment capacity of the liquid, prolongs the liquid replacement cycle, reduces the operation and maintenance cost, the distributed arrangement of the plurality of swing parts 5 realizes the global disturbance of the liquid in the liquid storage part 3, covers the bubble rising path without dead angle, and solves the problems of limited disturbance range of single swing part 5 and uneven pretreatment effect.

[0024] A spiral venturi 6 is communicated on one side of the liquid storage part 3, and the top of the liquid storage part 3 adopts a tapered structure and is in communication with the spiral venturi 6, guiding the pre-treated waste gas to change from a dispersed state to a concentrated upward airflow, avoiding waste gas wall sticking and short circuiting, the spiral venturi 6 makes the airflow accelerate at the same time to form a high-speed spiral flow, and uses centrifugal force to throw fine particles and sticky fog not removed by the liquid storage part 3 to the outside of the airflow, creating target capture conditions for subsequent spraying, the center flow converging effect of the spiral venturi 6 restricts the waste gas in the central area of the tower body, a filter screen 7 is fixedly installed inside the spray tower body 1, the filter screen 7 plays a role in secondary pretreatment, further reducing the impurity load of the spraying system, a liquid conveying part 8 is arranged on one side of the spray tower body 1, one end of the liquid conveying part 8 is provided with a communication pipe 9, and the communication pipe 9 penetrates and connects to one side of the spray tower body 1, a support plate 10 is fixedly installed inside the spray tower body 1, and a spraying part 20 is rotatably connected to one side of the support plate 10.

[0025] The infusion member 8 can independently control the delivery pressure and flow of the spraying liquid, cooperate with the rotating movement of the spraying member 20, atomize the spraying liquid into uniform fine droplets, improve the contact probability of the droplets and the spiral airflow, the communication pipe 9 is rotationally connected with the spraying member 20, and the communication pipe 9 is in communication with the spraying member 20, one side of the supporting plate 10 is provided with a second driving member 30, and the second driving member 30 is in transmission connection with the spraying member 20, the second driving member 30 is in transmission connection with the spraying member 20, and can drive the spraying member 20 to realize variable-speed rotation, the rotating speed is adjusted to make the spiral liquid curtain formed by the spraying liquid match the spiral direction of the airflow, realize flexible switching of same-direction extension contact or reverse shearing collision, adapt to the processing needs of different types of hazardous waste gas, and the rotating spraying design of the spraying member 20 does not need to cover the whole tower section, only needs to target the waste gas of the central flow, compared with the traditional fixed spraying, the spraying amount is reduced, and the consumption of reagents and water resources is greatly reduced.

[0026] The hazardous waste gas passes through the gas inlet member 2 and directly enters the liquid in the liquid storage member 3, the liquid storage member 3 stores the liquid, at this time, the first driving member 4 drives the plurality of oscillating members 5 to reciprocatingly oscillate up and down, on the one hand, breaks the regular bubbles formed by the waste gas in the liquid, makes the bubbles break into micron-sized small bubbles, greatly increases the contact area of the bubbles and the washing liquid, on the other hand, drives the liquid in the liquid storage member 3 to form a strong turbulent flow, avoids the local water body from being invalid due to the enrichment of pollutants, and strengthens the gas-liquid mass transfer efficiency. In the process, the large-particle-size heavy metal dust and sticky particles in the waste gas are settled by gravity or adsorbed by the water body, realizing primary separation, the water-soluble harmful gas and the liquid stored in the liquid storage member 3 occur primary neutralization reaction, completing the pre-removal of the pollutants, greatly reducing the load of the subsequent treatment unit, the waste gas after the pretreatment of the liquid storage member 3 enters the spiral venturi pipe 6 through the tapered structure at the top of the liquid storage member 3, so that the airflow is accelerated, and at the same time, the airflow is forced to change from a disordered diffusion state to a high-speed spiral upward central bunching airflow. In the process, the airflow will fling the fine particles and sticky fog that are not removed by the liquid storage member 3 to the outside of the airflow under the action of the rotating centrifugal force, to create a targeted capture condition for subsequent spraying treatment. At the same time, the central bunching airflow avoids the problems of airflow adhesion and short circuit in the traditional process, and ensures that the waste gas enters the spraying reaction zone.

[0027] The prepared spray liquid (the spray liquid is of the same type as the liquid in the storage member 3, and even if the spray liquid enters the inside of the storage member 3, it will not affect the preliminary filtration of the exhaust gas by the storage member 3) is delivered by the communication pipe 9 to the spraying member 20 installed on the support plate 10, and the second driving member 30 drives the spraying member 20 to rotate at high speed, so that the spray liquid is atomized into uniform droplets under the action of centrifugal force and forms a spiral liquid curtain matching the direction of the spiral airflow, the central spiral airflow discharged by the spiral venturi tube 6 and the spiral liquid curtain formed by the spraying member 20 occur shearing collision in the same direction or in the opposite direction, when rotating in the same direction, the gas-liquid relative speed is moderate, the contact time is prolonged, and the neutralization reaction of gaseous pollutants is strengthened, when rotating in the opposite direction, the gas-liquid relative speed is greatly improved, the liquid droplets are broken into finer mist droplets by the high-speed airflow, and high-efficiency collision capture occurs between the mist droplets and the fine particles and mist in the airflow, realizing deep purification. Therefore, the three-stage treatment mode of pre-washing by the storage member 3, spiral flow by the spiral venturi tube 6, and precise coupling of rotary spraying is adopted, realizing full-coverage removal of pollutants of different particle sizes and different types, improving the removal rate of large-particle particles, the removal rate of fine particles and sticky mist, and the removal rate of water-soluble gaseous pollutants, which is much better than the traditional fixed spraying process, and ensures stable and standard emission of hazardous waste exhaust gas.

[0028] The central bunching effect of the spiral venturi tube 6 causes the exhaust gas to be concentrated in the central region of the spraying tower body 1, and the rotary spraying member 20 does not need to cover the entire tower cross section, but only needs to target spraying to realize full-gas-path coverage. Compared with the traditional full-coverage fixed spraying, the spraying amount is reduced, and the consumption of alkali, flocculant and other reagents is greatly reduced. At the same time, the liquid in the storage member 3 and the spraying system can be recycled and reused, further reducing water resource and reagent costs, and achieving the effect of energy saving and environmental protection. The spiral flow bunching design of the spiral venturi tube 6 solves the problems of airflow diffusion, wall adhesion and short circuit in the traditional spraying tower body 1. The turbulent washing and double-spiral coupling reaction can effectively buffer the fluctuations of the concentration and flow rate of hazardous waste exhaust gas, and reduce the risk of emission exceeding the standard.

[0029] As Figure 2As shown, the air inlet member 2 includes a one-way valve 21 and a first air inlet pipe 22 arranged on one side of the one-way valve 21. The one-way valve 21 can automatically adjust the opening degree according to the pressure in the tower. When the exhaust gas flow suddenly increases and the pressure in the tower rises, the opening degree of the one-way valve 21 decreases to avoid excessive exhaust gas from rushing in and destroying the gas-liquid balance in the tower. When the exhaust gas flow decreases, the opening degree of the one-way valve 21 increases to ensure stable air intake and solve the problem of unstable treatment efficiency caused by air intake fluctuation in the traditional way. The one-way valve 21 is fixedly connected to the spray tower body 1. The one-way valve 21 is communicated with a second air inlet pipe 23 at one end. The one-way valve 21 can precisely control the airflow to flow only from the first air inlet pipe 22 to the second air inlet pipe 23 in one direction, completely blocking the backflow path and ensuring the safety of the front-end equipment and operating personnel. The second air inlet pipe 23 is connected to the spray tower body 1 and the liquid storage member 3 on one side. The second air inlet pipe 23 directly penetrates the side wall of the liquid storage member 3, so that the exhaust gas is directly introduced into the scrubbing liquid in the liquid storage member 3 without needing to diffuse in the cavity of the tower. This avoids the problem that the exhaust gas is not fully contacted with the liquid after diffusion in the traditional air intake method, ensuring that the exhaust gas participates in the water curtain turbulent washing from the beginning of entering the tower body and improving the efficiency of the primary pretreatment.

[0030] As shown in Figures 2-3 The liquid storage member 3 includes a liquid storage cylinder 31 and a wind collector 32 fixedly installed on one side of the liquid storage cylinder 31. The liquid storage cylinder 31 can store a sufficient amount of scrubbing liquid to enable the exhaust gas to directly immerse in the liquid, complete the pretreatment process of bubble breaking, particle settling, and primary neutralization of gaseous pollutants, and improve the corrosion resistance to strong acid, strong base, and heavy metal medium. This avoids direct contact of the tower body base material with high-concentration pollutants and prolongs the service life of the entire spray tower. A first liquid outlet pipe 33 is arranged on one side of the liquid storage cylinder 31. The tapered structure of the wind collector 32 can precisely converge the dispersed airflow rising in the liquid storage cylinder 31 to the inlet of the spiral Venturi tube 6, avoiding energy loss and short circuit problems caused by airflow diffusion. At the same time, the flow guiding effect of the wind collector 32 homogenizes the airflow velocity, ensures stable airflow into the spiral Venturi tube 6, and provides a good precondition for the formation of spiral flow, improving the centrifugal separation efficiency of fine particles. The first liquid outlet pipe 33 is connected to one side of the spray tower body 1. The first liquid outlet pipe 33 is communicated between the spray tower body 1 and the liquid storage cylinder 31, can regularly discharge the waste liquid in the liquid storage cylinder 31 which is rich in a large amount of particles, heavy metals, and salts, avoids the problems of invalidation of the scrubbing liquid and blockage of the pipeline caused by the accumulation of pollutants in the cylinder, and enables the operating personnel to complete the pollution discharge operation through external valves without entering the interior of the spray tower body 1 for cleaning, thereby greatly reducing the operation and maintenance intensity and downtime.

[0031] As shown in Figures 4-5As shown, the first driving member 4 comprises a first vertical cylinder 41 and a first sliding column 42 slidingly connected inside the first vertical cylinder 41, the surface of the first sliding column 42 is uniformly provided with four connecting plates 43, the four connecting plates 43 are slidingly connected with the first vertical cylinder 41, one side of the four connecting plates 43 is provided with a pressing column 44, and the pressing column 44 is slidingly connected with the swing member 5, the four connecting plates 43 and the pressing column 44 are uniformly distributed along the circumference of the first sliding column 42, which can synchronously drive multiple swing members 5 to swing cooperatively, ensure that the washing liquid in different areas of the liquid storage cylinder 31 is uniformly disturbed, avoid local disturbance blind area, greatly improve the bubble breaking efficiency and gas-liquid contact area, a cylindrical column 45 is fixedly installed inside the first vertical cylinder 41, four first springs 46 are uniformly installed at one end of the first sliding column 42, and one end of the four first springs 46 is fixedly connected with the cylindrical column 45, a sliding rod 47 is further installed at one end of the first sliding column 42, and the sliding rod 47 is slidingly connected with the cylindrical column 45, one end of the sliding rod 47 is fixedly provided with a magnet block 48, and an electromagnet 49 is fixedly installed at the bottom end of the first vertical cylinder 41.

[0032] When the electromagnet 49 is powered on, it generates magnetism, and the magnetic force can attract the magnet block 48 at the end of the sliding rod 47, drive the sliding rod 47 to slide downward along the axis of the cylindrical column 45, the sliding rod 47 is fixedly connected with the first sliding column 42, synchronously drive the first sliding column 42 to move downward in the first vertical cylinder 41, during the downward movement of the first sliding column 42, the four first springs 46 between the end of the first sliding column 42 and the cylindrical column 45 are compressed, so that the four first springs 46 are in a compressed energy storage state, at the same time, the four connecting plates 43 uniformly distributed on the surface of the first sliding column 42 move downward, the pressing column 44 on the connecting plate 43 moves downward synchronously, the pressing column 44 is slidingly connected with the swing member 5, the downward pressure forces the swing member 5 to swing downward around the connection point, agitates the washing liquid in the liquid storage cylinder 31, when the electromagnet 49 is powered off, the magnetic attraction force disappears, the four first springs 46 which are compressed release elastic potential energy, generate upward thrust, the thrust of the four first springs 46 drives the first sliding column 42 to reset upward along the inside of the first vertical cylinder 41, synchronously drive the connecting plate 43 and the pressing column 44 to move upward, the upward pulling force of the pressing column 44 drives the swing member 5 to swing upward around the connection point, agitates the washing liquid again, that is, the swing member 5 can be driven to continuously reciprocate up and down, forming a stable turbulent disturbance effect.

[0033] As Figure 4As shown, the swing member 5 includes a second vertical cylinder 51 and a second sliding column 52 slidingly connected inside the second vertical cylinder 51, the pressing column 44 is slidingly connected with the second vertical cylinder 51, and the pressing column 44 is fixedly connected with the second sliding column 52, one end of the second sliding column 52 is fixedly installed with a second spring 53, and one end of the second spring 53 is fixedly connected with the second vertical cylinder 51, and four swing plates 54 are relatively uniformly installed on the surface of the second sliding column 52, and the swing plates 54 are slidingly connected with the second vertical cylinder 51, when the pressing column 44 moves downward, the pressing column 44 drives the second sliding column 52 fixedly connected therewith to synchronously slide downward inside the second vertical cylinder 51, in the process of downward movement of the second sliding column 52, the second spring 53 between the end portion of the second sliding column 52 and the inner wall of the second vertical cylinder 51 is extruded, so that the spring is in a compressed energy storage state, at the same time, the four swing plates 54 relatively uniformly distributed on the surface of the second sliding column 52 move downward, when the electromagnet 49 is de-energized, the pressing column 44 is reset upward under the action of the first spring 46, the pressing column 44 drives the second sliding column 52 to synchronously move upward, at this time, the second spring 53 which is compressed releases elastic potential energy, and assists in pushing the second sliding column 52 to quickly reset, so that the upward and downward stirring of the washing liquid can be formed, and the liquid turbulent flow effect is strengthened.

[0034] As shown in Figure 3 and Figure 6 shown, the spiral venturi tube 6 includes a converging pipe 61 and a spiral pipe 62 installed at one end of the converging pipe 61, the converging structure of the converging pipe 61 can compress and accelerate the dispersed airflow guided by the wind collector 32, so that the airflow velocity is uniformly increased, and the airflow is gathered to the central axis at the same time, avoiding the short circuit problem caused by the wall diffusion of the airflow, at the same time, the accelerated airflow can enhance the centrifugal force of subsequent cyclone separation, laying a power foundation for efficient capture of fine particles, one end of the spiral pipe 62 is communicated with a diffusion pipe 63, the spiral pipe 62 can force the central airflow accelerated by the converging pipe 61 to do high-speed spiral motion along the channel, and the diverging structure of the diffusion pipe 63 can slow down and decompress the high-speed spiral airflow discharged by the spiral pipe 62, so that the airflow velocity is reduced to a range matched with the rotating spraying member 20, avoiding that the high-speed airflow breaks through the spraying liquid curtain, and ensuring that the gas and liquid are fully contacted, at the same time, the kinetic energy of the airflow is converted into pressure energy in the process of deceleration, which can improve the collision intensity of the airflow and the liquid curtain, and further improve the fine particle capture efficiency.

[0035] The spiral pipe 62 is internally provided with a spiral groove 621, which provides a directional rotation guide path for the airflow, after the airflow accelerated and gathered by the converging pipe 61 enters the spiral pipe 62, it will do high-speed spiral upward motion along the rotation direction of the spiral groove 621, and the fine particles and viscous fog in the airflow will be continuously flung to the pipe wall under the action of the centrifugal force.

[0036] In order to solve the technical problem of limited spraying range of the fixed spraying assembly, as shown in Figures 7-9 the following preferred technical solutions are provided: As shown inFigures 7-8 As shown, the infusion member 8 includes a box body 81 and a partition plate 82 fixed inside the box body 81, the box body 81 is provided with a second liquid outlet pipe 83 on one side, the box body 81 is also provided with a liquid inlet pipe 84 on one side, the box body 81 is communicated with a pump body 85 at one end, and the pump body 85 is fixedly connected with the spray tower body 1, the pump body 85 is communicated with a pipeline 86 on one side, and the pipeline 86 is communicated with the communication pipe 9, the partition plate 82 divides the internal space of the box body 81 into two independent cavities in upper and lower layers, the upper cavity is a clean spray liquid storage area, and the area is supplemented with freshly prepared spray liquid through the liquid inlet pipe 84, when the spray system is started, the pump body 85 extracts the clean spray liquid in the upper cavity, and the clean spray liquid is transported to the rotating spray member 20 through the pipeline 86 and the communication pipe 9, under the action of centrifugal force, the spray liquid is atomized into a spiral liquid curtain, fully contacts with the exhaust gas discharged from the spiral venturi pipe 6, and completes the capture and neutralization reaction of the pollutants. After the reaction with the exhaust gas, the waste liquid containing pollutants flows back downward in the spray tower body 1, flows into the lower cavity waste liquid temporary storage area of the box body 81 through the tower bottom outlet, realizes the physical isolation of the clean spray liquid and the waste liquid containing pollutants, avoids that the untreated waste liquid directly enters the spray circulation, and the spray liquid and the liquid type of the liquid storage cylinder 31 are consistent. Even if the spray liquid enters the inside of the liquid storage cylinder 31, the liquid storage cylinder 31 will not be affected by the spray liquid.

[0037] The spray member 20 includes a spray plate 201 and a hollow pipe 202 fixed on one side of the spray plate 201, the communication pipe 9 is rotationally connected with the hollow pipe 202, and the hollow pipe 202 is rotationally connected with the support plate 10. The first bevel gear 203 is fixedly installed on the surface of the hollow pipe 202. The hollow pipe 202 has the dual functions of a spray liquid conveying channel and a rotating support shaft. On one hand, the spray liquid conveyed by the communication pipe 9 directly reaches the spray plate 201 through the inner cavity of the hollow pipe 202. On the other hand, the hollow pipe 202 is rotationally connected with the support plate 10, which provides stable support for the high-speed rotation of the spray plate 201 and ensures the accuracy of the coaxiality during rotation, avoiding uneven distribution of the spray liquid due to eccentricity. The spray plate 201 is fixed to the end of the hollow pipe 202 and can rotate synchronously with the hollow pipe 202. In combination with the central flow concentration effect of the spiral venturi pipe 6, the spray plate 201 does not need to cover the entire tower cross section and only needs to target the central spiral airflow for targeted spraying, so that the spray liquid mist is concentrated on the airflow core area rich in pollutants. Compared with the traditional full-coverage spraying, the utilization rate of the medicament is improved.

[0038] As Figure 9As shown, the second driving member 30 comprises a protective shell 301 and a cylinder 302 connected through one end of the protective shell 301, by adjusting the output rotating speed of the motor 303, the rotating speed of the spraying plate 201 can be accurately controlled, and then the rotating direction and density of the spiral liquid curtain are adjusted, when the gaseous pollutant neutralization reaction needs to be strengthened, the motor 303 rotating speed is controlled to make the liquid curtain rotate in the same direction with the airflow, the gas-liquid contact time is prolonged, when the fine particle capture efficiency needs to be improved, the reverse rotation is realized by adjusting the rotating speed, the shear collision effect is formed, the treatment needs of different types of hazardous waste gas are met, and the cylinder 302 is connected through one side of the spraying tower body 1, the motor 303 is installed in the cylinder 302, the output end of the motor 303 is fixedly installed with a rotating shaft 304, the one end of the rotating shaft 304 is fixedly installed with a second bevel gear 305, and the second bevel gear 305 is meshed and connected with the first bevel gear 203, two positioning plates 306 are fixedly installed in the protective shell 301, the two positioning plates 306 form double support point constraints for the rotating shaft 304, the vibration and deflection of the rotating shaft 304 during high-speed rotation are effectively inhibited, the uniform and stable bevel gear meshing gap is ensured, and the rotating shaft 304 is rotationally connected with the two positioning plates 306, when the motor 303 is started, the output end drives the rotating shaft 304 to rotate at high speed, the second bevel gear 305 fixedly arranged at one end of the rotating shaft 304 rotates synchronously, since the second bevel gear 305 is meshed and connected with the first bevel gear 203 on the surface of the hollow pipe 202, the hollow pipe 202 can be driven to rotate, and then the spraying plate 201 is driven to rotate at high speed, so that the spraying liquid is atomized into a spiral liquid curtain under the action of centrifugal force.

[0039] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A hazardous waste exhaust gas treatment spray tower, comprising a spray tower body (1), characterized in that: An air inlet (2) is provided on one side of the spray tower body (1). A liquid storage device (3) is installed inside the spray tower body (1), and the air inlet (2) is connected to the liquid storage device (3). A first driving device (4) is installed inside the liquid storage device (3), and several swinging devices (5) are also installed inside the liquid storage device (3). The first driving device (4) is connected to several swinging devices (5). A spiral venturi tube (6) is connected to one side of the liquid storage device (3). A filter screen (7) is fixedly installed inside the spray tower body (1). An infusion device (8) is provided, and a connecting pipe (9) is installed at one end of the infusion device (8). The connecting pipe (9) is connected through to one side of the spray tower body (1). A support plate (10) is fixedly installed inside the spray tower body (1). A spraying device (20) is rotatably connected to one side of the support plate (10). The connecting pipe (9) is rotatably connected to the spraying device (20), and the connecting pipe (9) is connected to the spraying device (20). A second driving device (30) is provided on one side of the support plate (10), and the second driving device (30) is connected to the spraying device (20) in a transmission connection.

2. The hazardous waste exhaust gas treatment spray tower according to claim 1, characterized in that: The air inlet component (2) includes a one-way valve (21) and a first air inlet pipe (22) disposed on one side of the one-way valve (21). The one-way valve (21) is fixedly connected to the spray tower body (1). One end of the one-way valve (21) is connected to a second air inlet pipe (23), and the second air inlet pipe (23) is connected through to both the spray tower body (1) and the liquid storage component (3) on one side.

3. The hazardous waste exhaust gas treatment spray tower according to claim 1, characterized in that: The liquid storage component (3) includes a liquid storage cylinder (31) and a wind collector hood (32) fixedly installed on one side of the liquid storage cylinder (31). A first liquid outlet pipe (33) is provided on one side of the liquid storage cylinder (31), and the first liquid outlet pipe (33) is connected through to one side of the spray tower body (1).

4. The hazardous waste exhaust gas treatment spray tower according to claim 1, characterized in that: The first driving component (4) includes a first vertical cylinder (41) and a first sliding column (42) slidably connected inside the first vertical cylinder (41). Four connecting plates (43) are evenly installed on the surface of the first sliding column (42). All four connecting plates (43) are slidably connected to the first vertical cylinder (41). A pressing column (44) is installed on one side of each of the four connecting plates (43), and the pressing column (44) is slidably connected to the swing component (5). A cylinder (45) is fixedly installed inside the first vertical cylinder (41). Four first springs (46) are evenly installed at one end of the first sliding column (42), and one end of each of the four first springs (46) is fixedly connected to the cylinder (45). A sliding rod (47) is also installed at one end of the first sliding column (42), and the sliding rod (47) is slidably connected to the cylinder (45). A magnet block (48) is fixedly installed at one end of the sliding rod (47). An electromagnet (49) is fixedly installed inside the bottom end of the first vertical cylinder (41).

5. A hazardous waste exhaust gas treatment spray tower according to claim 4, characterized in that: The swinging component (5) includes a second vertical cylinder (51) and a second sliding column (52) slidably connected inside the second vertical cylinder (51). The pressing column (44) is slidably connected to the second vertical cylinder (51), and the pressing column (44) is fixedly connected to the second sliding column (52). A second spring (53) is fixedly installed at one end of the second sliding column (52), and one end of the second spring (53) is fixedly connected to the second vertical cylinder (51). Four swing plates (54) are relatively evenly installed on the surface of the second sliding column (52), and the swing plates (54) are slidably connected to the second vertical cylinder (51).

6. The hazardous waste exhaust gas treatment spray tower according to claim 1, characterized in that: The spiral venturi tube (6) includes a contraction tube (61) and a spiral tube (62) installed at one end of the contraction tube (61), with a diffuser tube (63) connected to one end of the spiral tube (62).

7. A hazardous waste exhaust gas treatment spray tower according to claim 6, characterized in that: The spiral tube (62) has a spiral groove (621) inside.

8. The hazardous waste exhaust gas treatment spray tower according to claim 1, characterized in that: The infusion unit (8) includes a box (81) and a partition plate (82) fixed inside the box (81). A second outlet pipe (83) is provided on one side of the box (81), and an inlet pipe (84) is also provided on one side of the box (81). A pump body (85) is connected to one end of the box (81), and the pump body (85) is fixedly connected to the spray tower body (1). A pipe (86) is connected to one side of the pump body (85), and the pipe (86) is connected to the connecting pipe (9).

9. A hazardous waste exhaust gas treatment spray tower according to claim 1, characterized in that: The spray component (20) includes a spray plate (201) and a hollow tube (202) fixed on one side of the spray plate (201). A connecting pipe (9) is rotatably connected to the hollow tube (202), and the hollow tube (202) is rotatably connected to the support plate (10). A first bevel gear (203) is fixedly installed on the surface of the hollow tube (202).

10. A hazardous waste exhaust gas treatment spray tower according to claim 9, characterized in that: The second driving component (30) includes a protective shell (301) and a cylinder (302) that is connected through one end of the protective shell (301). The cylinder (302) is connected through one side of the spray tower body (1). A motor (303) is installed inside the cylinder (302). A rotating shaft (304) is fixedly installed at the output end of the motor (303). A second bevel gear (305) is fixedly installed at one end of the rotating shaft (304). The second bevel gear (305) meshes with the first bevel gear (203). Two positioning plates (306) are fixedly installed inside the protective shell (301). The rotating shaft (304) is rotatably connected to both positioning plates (306).

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