An efficient wet dust removal device for steel slag pretreatment

Abstract

Embodiments of the present disclosure relate to the technical field of steel slag dust removal. An embodiment of the present disclosure provides an efficient wet dust removal device for steel slag pretreatment, including a dust collection hood; a spray washing tower, where the dust collection hood leads to the spray washing tower; a gas-water separator, where the spray washing tower leads to the gas-water separator; a discharge chimney, where the gas-water separator leads to the discharge chimney. A venturi tube is connected between the dust collection hood and the spray washing tower; an induced draft fan is connected between the gas-water separator and the discharge chimney. Through the above technical solution, the technical problem in the related art that simply relying on the spray washing tower to treat the dust generated by steel slag pretreatment results in a large amount of wastewater is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of steel slag dust removal, and specifically, to an efficient wet dust removal device for steel slag pretreatment. Background Art

[0002] Wet dust removal for steel slag pretreatment is a dust removal technology applied in the steel slag pretreatment process. After the dust-containing gas enters the dust removal equipment, it comes into full contact with a liquid (usually water). Through the capture and agglomeration of dust by liquid droplets, the dust is separated from the gas. For example, in a spray scrubber, water contacts the dust-containing gas in a spray form, and larger particle dust is captured and settled by the liquid droplets. In the spray scrubber, the dust-containing gas enters the tower and contacts the scrubbing liquid sprayed from top to bottom in a countercurrent manner to achieve preliminary dust removal, and some larger particle dust can be removed. The spray scrubber can effectively remove dust of various particle sizes, especially having a good capture effect on fine dust. Compared with dry dust removal, there is no risk of dust explosion. However, the wet dust removal device is relatively large in volume and will generate wastewater containing a large amount of suspended solids and heavy metals. Due to long-term contact with water and corrosive gases, the anti-corrosion requirements of the equipment are relatively high, and the maintenance cost is relatively large. Therefore, it is very necessary to cooperate the spray scrubber with other dust removal equipment to treat the dust generated in the steel slag pretreatment process to reduce the generation of wastewater, rather than relying solely on the spray scrubber. Summary of the Invention

[0003] To overcome the above defects, embodiments of the present disclosure provide an efficient wet dust removal device for steel slag pretreatment, which solves the technical problem in the related art that relying solely on a spray scrubber to treat the dust generated in steel slag pretreatment results in a large amount of wastewater generation.

[0004] According to one aspect, at least one embodiment of the present disclosure provides an efficient wet dust removal device for steel slag pretreatment, including:

[0005] A dust collection hood;

[0006] A spray scrubber, the dust collection hood leading to the spray scrubber;

[0007] A gas-liquid separator, the spray scrubber leading to the gas-liquid separator;

[0008] A discharge chimney, the gas-liquid separator leading to the discharge chimney.

[0009] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure further includes:

[0010] A venturi tube, the venturi tube being connected between the dust collection hood and the spray scrubber;

[0011] An induced draft fan, the induced draft fan being connected between the gas-liquid separator and the discharge chimney.

[0012] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure, the gas-water separator includes:

[0013] A main body having a cavity with an inlet, a gas outlet, and a water outlet, and the spray scrubber leads to the inlet;

[0014] A partition member disposed in the cavity, dividing the cavity into a front cavity and a rear cavity. The inlet and the water outlet are located on one side of the partition member. The inlet leads to the front cavity, and the bottom of the front cavity has the water outlet. The gas outlet is located on the other side of the partition member, and the rear cavity leads to the gas outlet;

[0015] A grid water baffle. The partition member has a plurality of through holes arranged uniformly, and the front cavity and the rear cavity are communicated through the through holes, and the grid water baffle is disposed in the through holes.

[0016] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure, the gas-water separator further includes:

[0017] A water seepage member, one end of which abuts against the grid water baffle, and the other end is used to lead water to the bottom of the front cavity and discharge it through the water outlet.

[0018] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure, the water seepage member has:

[0019] An annular abutting portion which is abutted against the through hole;

[0020] An extension portion which is strip-shaped and one end of which is connected to the annular abutting portion.

[0021] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure, the water seepage member further has a horizontal water absorption increasing section connected to the other end of the extension portion; the gas-water separator further includes a water suction pipe disposed on one side of the horizontal water absorption increasing section, and the water suction pipe has a suction port facing the horizontal water absorption increasing section and having a gap with the horizontal water absorption increasing section.

[0022] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure, the lower part of the horizontal water absorption increasing section has a water guiding drip edge for guiding and dripping water droplets to the bottom of the front cavity.

[0023] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure further includes an air guiding member, and the air guiding member includes:

[0024] A connecting pipe, both ends of the connecting pipe are connected between the spray washing tower and the inlet:

[0025] A reduced-diameter ring, one end of the reduced-diameter ring is connected to the inner wall of the connecting pipe, the other end has a gradually decreasing diameter, the reduced-diameter ring has a reduced-diameter cavity, there is a tapered interval between the reduced-diameter ring and the connecting pipe, the tapered interval faces the inlet, and the end of the water suction pipe away from the suction port has a drainage port, and the drainage port is communicated with the reduced-diameter cavity.

[0026] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure, the gas-water separator further includes a water absorption member, and the water absorption member includes:

[0027] An annular water absorption edge, the annular water absorption edge is arranged in the through hole and is located behind the grid water blocking member. The annular water absorption edge has a plurality of water absorption petals arranged in a circumferential direction. The plurality of water absorption petals are arranged in a circumferential cone shape and are flexible members for adjusting the size of the through hole according to the wind force.

[0028] For example, an efficient wet dust removal device for steel slag pretreatment provided by at least one embodiment of the present disclosure, the annular water absorption edge is connected to the water seepage member; the gas-water separator further includes a baffle, the baffle is arranged in the front cavity, and the inlet faces the baffle.

[0029] The beneficial effects of the embodiments of the present disclosure are:

[0030] In the present disclosure, the wet dust removal device can effectively control dust emissions, meet environmental protection requirements, and at the same time reduce operating costs. It significantly improves the dust removal efficiency during the steel slag pretreatment process, reduces wastewater emissions and equipment maintenance costs. The dust collection hood collects the dust-containing gas, which is sequentially processed by the spray washing tower and the gas-water separator, and finally discharged through the discharge chimney. An efficient, environmentally friendly and economical wet dust removal system for steel slag pretreatment is constructed. It well solves the technical problem that simply relying on the spray washing tower to treat the dust generated by steel slag pretreatment results in a large amount of wastewater generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments of the present disclosure. Obviously, the following drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the exemplary embodiments of the present disclosure and these drawings.

[0032] Figure 1 It is a principle block diagram of a wet dust removal device in an embodiment of the present disclosure;

[0033] Figure 2 Schematic diagram of the external structure of the gas-water separator in the embodiment of Figure 1 ;

[0034] Figure 3 Schematic diagram of the top view structure of the gas-water separator in the embodiment of Figure 1 ;

[0035] Figure 4 Schematic diagram of the A-A sectional view structure in Figure 3 ;

[0036] Figure 5 Schematic diagram of the enlarged structure of part D in Figure 4 ;

[0037] Figure 6 Schematic diagram of the B-B sectional view structure in Figure 3 ;

[0038] Figure 7 Schematic diagram of the C-C sectional view structure in Figure 3 ;

[0039] Figure 8 Schematic diagram of the enlarged structure of part E in Figure 7 ;

[0040] In the figure: dust collection hood - 1, venturi tube - 2, spray scrubber tower - 3, gas-water separator - 4, main body - 401, cavity - 402, front cavity - 4021, rear cavity - 4022, inlet - 403, gas outlet - 404, water outlet - 405, partition - 406, grid water baffle - 407, through hole - 408, water seepage part - 409, annular abutting part - 410, extension part - 411, horizontal suction enhancement section - 412, water suction pipe - 413, suction port - 414, interval - 415, water guide drip edge - 416, water absorption part - 417, annular water absorption edge - 418, water absorption flap - 419, baffle - 420, dispersion chimney - 5, induced draft fan - 7, air guiding part - 8, connecting pipe - 801, reduced diameter ring - 802, reduced diameter cavity - 803, annular conical interval - 804, drainage port - 9. Detailed implementation manners

[0041] The present disclosure will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0042] To simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, to simplify the drawings for easier understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one of them is labeled. In this document, "one" not only means "only this one", but also can mean "more than one", and "several" includes "two" and "more than two".

[0043] In this document, it should be noted that unless otherwise clearly defined and limited, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific situations.

[0044] In this disclosure, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this disclosure.

[0046] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0047] Such as Figure 1As shown, it shows an efficient wet dust removal device for steel slag pretreatment in an embodiment of the present disclosure. In the steel slag pretreatment workshop of a certain steel plant, the dust collection hood 1 is arranged above the steel slag treatment equipment to collect the generated dust-containing gas and lead it to the spray washing tower 3. In the spray washing tower 3, the dust-containing gas is in counter-current contact with the washing liquid sprayed from top to bottom, and larger particles of dust are captured and settled by the liquid droplets, initially achieving dust removal. The gas treated by the spray washing tower 3 is led to the gas-liquid separator 4, and the gas-liquid separator 4 separates the moisture in the gas. Finally, the relatively dry and clean gas after treatment is discharged into the atmosphere through the dispersion chimney 5.

[0048] The advantages of this design are as follows: First, the dust-containing gas is effectively collected by the dust collection hood 1, improving the comprehensiveness of treatment. Second, the spray washing tower 3 can initially and effectively treat the dust-containing gas and remove larger particles of dust. Third, the cooperation of the gas-liquid separator 4 and the gas-liquid separator 4 further improves the quality of the gas and reduces the generation and discharge of wastewater. For example, during the long-term steel slag pretreatment process, this wet dust removal device can operate stably, effectively control dust emissions, and at the same time reduce the pressure and cost of wastewater treatment.

[0049] In terms of technical effects, the dust removal efficiency in the steel slag pretreatment process is significantly improved, and environmental pollution is reduced. The dust-containing gas is collected by the dust collection hood 1 and enters the spray washing tower 3 for initial dust removal, then enters the gas-liquid separator 4 to separate gas and water, and finally is discharged through the dispersion chimney 5. The process of wet dust removal for steel slag pretreatment is optimized, and the treatment effect and economy are improved.

[0050] As Figure 1 shown, in some examples, the dust-containing gas collected by the dust collection hood 1 first passes through the Venturi tube 2. The Venturi tube 2 can accelerate and initially mix the gas, making the dust-containing gas enter the spray washing tower 3 more uniformly and improving the washing effect. The gas treated by the spray washing tower 3 enters the gas-liquid separator 4 for gas-liquid separation. Then, under the action of the induced draft fan 7, the separated gas is accelerated and transported to the dispersion chimney 5. The induced draft fan 7 provides power for the flow of the gas, ensuring the smooth flow of the gas in the entire system.

[0051] The advantages of this design are as follows: First, the Venturi tube 2 improves the uniformity and speed of the gas entering the spray washing tower 3, enhancing the washing effect. Second, the induced draft fan 7 ensures the stable transmission of the gas in the system and avoids blockage or unsmooth air flow. For example, during the peak production period, a large amount of dust-containing gas generated by steel slag treatment can be quickly and effectively treated and discharged in this device, ensuring the cleanliness and safety of the production environment.

[0052] In terms of technical effects, the operating stability and treatment efficiency of the entire wet dust removal device have been significantly improved. The dust-containing gas is collected by the dust collection hood 1 and enters the spray scrubbing tower 3 through the Venturi tube 2, and then is sent to the discharge chimney 5 for discharge by the induced draft fan 7 after being treated by the gas-water separator 4. The structure and function of the wet dust removal device for steel slag pretreatment have been improved, and its performance and reliability in practical applications have been enhanced.

[0053] As Figures 2 to 8 shown, in some examples, the gas-water separator 4 includes a main body 401, the main body 401 has a cavity 402, the cavity 402 has an inlet 403, a gas outlet 404 and a water outlet 405, and the spray scrubbing tower 3 leads to the inlet 403; a partition 406 is arranged in the cavity 402, dividing the cavity 402 into a front cavity 4021 and a rear cavity 4022, the inlet 403 and the water outlet 405 are located on one side of the partition 406, the inlet 403 leads to the front cavity 4021, and the bottom of the front cavity 4021 has the water outlet 405, the gas outlet 404 is located on the other side of the partition 406, and the rear cavity 4022 leads to the gas outlet 404; the partition 406 has a number of uniformly arranged through holes 408, and the front cavity 4021 and the rear cavity 4022 are communicated through the through holes 408, and a grid water baffle 407 is arranged in the through holes 408.

[0054] During the actual operation of the wet dust removal device for steel slag pretreatment, for example, in the continuous production process of a steel plant: the gas-water mixture enters the front cavity 4021 from the inlet 403 of the gas-water separator 4 leading from the spray scrubbing tower 3. In the front cavity 4021, due to the change in the speed and direction of the gas-water mixture, the heavier water droplets settle to the bottom of the cavity under the action of gravity and are discharged through the water outlet 405. At the same time, the gas enters the rear cavity 4022 through the through holes 408 on the partition 406. The grid water baffle 407 arranged in the through holes 408 further blocks the tiny water droplets that may flow with the gas, so that the moisture in the gas is further removed. The treated gas is discharged from the gas outlet 404 and enters the subsequent treatment process.

[0055] The advantages of this design are as follows: First, through the partition and structural design of the cavity, the preliminary separation of gas and water is realized, and the separation efficiency is improved. Second, the setting of the grid water baffle 407 enhances the interception effect on tiny water droplets and improves the dryness of the gas.

[0056] For example, in long-term and high-intensity steel slag treatment operations, the gas-water separator 4 can stably and effectively separate gas and water, ensuring the normal operation and treatment effect of subsequent equipment. The effect and stability of gas-water separation have been significantly improved. By utilizing the physical properties of the gas-water mixture and the cavity structure, combined with the grid water baffle 407, the efficient separation of gas and water is realized. The internal structure of the gas-water separator 4 has been optimized, and its separation performance in the wet dust removal device has been improved.

[0057] In some examples, the gas-water separator 4 further includes a water seepage member 409. One end of the water seepage member 409 abuts against the grid water baffle 407, and the other end is used to lead water to the bottom of the front cavity 4021 and discharge it through the water outlet 405.

[0058] During the actual operation of the wet dust removal device for steel slag pretreatment, for example, in the scenario of continuous production in a steel plant: when the gas-water mixture passes through the gas-water separator 4, the gas is separated from water by the grid water baffle 407. The water seepage member 409 abutting against the grid water baffle 407 plays a role. The water seepage member 409 can quickly guide the water intercepted by the grid water baffle 407 to the bottom of the front cavity 4021. Then, this water is discharged smoothly through the water outlet 405.

[0059] The advantages of this design are as follows: First, the intercepted water is discharged in a timely and effective manner, preventing water from accumulating at the grid water baffle 407, thereby maintaining the water blocking effect and air permeability of the grid water baffle 407. Second, the efficiency and continuity of gas-water separation are improved, ensuring the stable operation of the gas-water separator 4.

[0060] For example, during long-term high-load production, the water seepage member 409 can continuously function to ensure that the gas-water separation effect is not affected and reduce the time for equipment maintenance and shutdown. In terms of technical effects, the gas-water separation effect and the stability of equipment operation are significantly enhanced. With the cooperation of the water seepage member 409 and the grid water baffle 407, the separated water is quickly guided out. The drainage function of the gas-water separator 4 is further improved, and the overall performance and reliability of the wet dust removal device are enhanced.

[0061] In some examples, the water seepage member 409 has an annular abutting portion 410, and the annular abutting portion 410 is arranged to abut against the through hole 408; the extension portion 411 is strip-shaped and one end is connected to the annular abutting portion 410.

[0062] During the actual working condition of the high-efficiency wet dust removal device for steel slag pretreatment, for example, during the busy production period in a steel slag treatment plant: the annular abutting portion 410 of the water seepage member 409 closely abuts against the through hole 408. Such a design ensures that when the gas-water mixture passes through the through hole 408, the water intercepted by the grid water baffle 407 can be effectively collected by the annular abutting portion 410. One end of the extension portion 411 is connected to the annular abutting portion 410, and its strip-shaped structure can smoothly guide the collected water to the bottom of the front cavity 4021.

[0063] The advantages of this design are as follows: First, the annular abutting portion 410 ensures good contact with the through hole 408, improving the efficiency and integrity of water collection. Second, the strip-shaped design of the extension portion 411 has a good water guiding effect and can quickly drain the water to avoid water accumulation.

[0064] For example, during a long-term and large-scale steel slag treatment process, the water seepage member 409 of this structure can work continuously and stably, ensuring the efficient operation of the gas-water separator 4. In terms of technical effects, the collection and diversion performance of the water seepage member 409 is significantly optimized. The annular abutting portion 410 is used to collect moisture, and the moisture is guided and discharged through the extension portion 411. The performance of the gas-water separator 4 is further improved, and the reliability and stability of the wet dust removal device are enhanced.

[0065] In some examples, the water seepage member 409 further has a horizontal water absorption enhancement section 412, and the horizontal water absorption enhancement section 412 is connected to the other end of the extension portion 411; the gas-water separator 4 further includes a water suction pipe 413, the water suction pipe 413 is arranged on one side of the horizontal water absorption enhancement section 412, the water suction pipe 413 has a suction port 414, the suction port 414 faces the horizontal water absorption enhancement section 412 and has a gap 415 with the horizontal water absorption enhancement section 412.

[0066] During the operation of the wet dust removal device for steel slag pretreatment, for example, during continuous high-intensity steel slag treatment operations: the horizontal water absorption enhancement section 412 of the water seepage member 409 is connected to the other end of the extension portion 411. When moisture flows along the extension portion 411 to the horizontal water absorption enhancement section 412, due to the special structure and position of the horizontal water absorption enhancement section 412, the adsorption and guiding effect on moisture can be enhanced. At the same time, the water suction pipe 413 in the gas-water separator 4 plays a role. The water suction pipe 413 is arranged on one side of the horizontal water absorption enhancement section 412, its suction port 414 faces the horizontal water absorption enhancement section 412 and has a gap 415 with the horizontal water absorption enhancement section 412. Under the suction of the water suction pipe 413, the moisture is further accelerated to be sucked away from the horizontal water absorption enhancement section 412, improving the drainage efficiency, and the design of the gap 415 can ensure that the moisture can fall into the front cavity 4021 and will not be sucked away by the water suction pipe 413.

[0067] The advantages of this design are as follows: First, the horizontal water absorption enhancement section 412 enhances the adsorption and collection ability of moisture, enabling the moisture to be processed more concentratedly. Second, the cooperation between the water suction pipe 413 and the horizontal water absorption enhancement section 412 accelerates the drainage through suction, improving the speed and effect of gas-water separation.

[0068] For example, in the working conditions of treating a large amount of dust-containing gas and generating a large amount of moisture, this design can ensure the efficient separation of gas and water by the gas-water separator 4, ensuring the stable operation of the entire dust removal device. In terms of technical effects, the drainage speed and efficiency of the gas-water separator 4 are significantly improved. With the adsorption of the horizontal water absorption enhancement section 412 and the suction of the water suction pipe 413, the discharge of moisture is accelerated. The drainage mechanism of the gas-water separator 4 is optimized, and the performance and stability of the wet dust removal device under complex working conditions are enhanced.

[0069] In some examples, the lower part of the horizontal water suction increasing section 412 has a water dripping guiding flange 416, which is used to guide and drip water droplets to the bottom of the front cavity 4021. During the actual operation of the high-efficiency wet dust removal device for steel slag pretreatment, for example, in a long-term uninterrupted steel slag treatment process: when water flows through the horizontal water suction increasing section 412, the water dripping guiding flange 416 at the lower part of the horizontal water suction increasing section 412 plays a role. The water dripping guiding flange 416 can effectively guide and drip the water droplets that cannot be timely sucked away by the water suction pipe 413 to the bottom of the front cavity 4021.

[0070] The advantages of this design are as follows: First, it further ensures that water can accurately and quickly drip to the bottom of the front cavity 4021, reducing the residue of water in the front cavity 4021 and improving the effect of gas-water separation. Second, even when the suction of the water suction pipe 413 is insufficient or fails, the water dripping guiding flange 416 can also play a certain role in assisting water conduction, enhancing the reliability of the system.

[0071] For example, when facing a suddenly increased dust-containing gas treatment volume or a short-term failure of the water suction pipe 413, the water dripping guiding flange 416 can ensure that the gas-water separator 4 continues to play a certain drainage function and maintain the basic operation of the entire dust removal device. In terms of technical effects, the drainage reliability and stability of the gas-water separator 4 are significantly enhanced. By utilizing the guiding effect of the water dripping guiding flange 416 on water, it is ensured that water smoothly drips to the bottom of the front cavity 4021. The drainage structure of the gas-water separator 4 is improved, and the adaptability and stability of the wet dust removal device under various working conditions are enhanced.

[0072] In some examples, it further includes an air guiding member 8. The air guiding member 8 includes a connecting pipe 801, and both ends of the connecting pipe 801 are connected between the spray washing tower 3 and the inlet 403: One end of the reduced diameter ring 802 is connected to the inner wall of the connecting pipe 801, and the other end has a gradually decreasing diameter, and the reduced diameter ring 802 has a reduced diameter cavity 803. There is a tapered interval 804 between the reduced diameter ring 802 and the connecting pipe 801, and the tapered interval 804 faces the inlet 403. One end of the water suction pipe 413 away from the suction port 414 has a drainage port 9, and the drainage port 9 is communicated with the reduced diameter cavity 803.

[0073] In the operation scenario of the wet dust removal device for steel slag pretreatment, such as during the normal production period of a steel plant: The connecting pipe 801 in the air guiding member 8 tightly connects the spray washing tower 3 and the inlet 403 of the gas-water separator 4 to ensure the smooth transmission of gas. One end of the reduced diameter ring 802 is connected to the inner wall of the connecting pipe 801, and the other end has a gradually decreasing diameter, forming a reduced diameter cavity 803. When the gas passes through, due to the special structure of the reduced diameter ring 802, the air flow velocity will increase, generating a certain negative pressure. At the same time, the tapered interval 804 between the reduced diameter ring 802 and the connecting pipe 801 faces the inlet 403, which helps to guide the air flow and enhance the negative pressure effect.

[0074] One end of the water suction pipe 413 away from the suction port 414 is provided with a drainage port 9, and the drainage port 9 is communicated with the reduced diameter cavity 803. Under the negative pressure generated by the reduced diameter ring 802, the suction force of the water suction pipe 413 on water can be enhanced, and the drainage efficiency can be improved.

[0075] The advantages of this design are as follows: First, through the negative pressure generated by the reduced diameter ring 802, the water absorption effect of the water suction pipe 413 can be enhanced without additional power equipment, saving energy and cost. Second, the flow path and speed of the gas are optimized, improving the operation efficiency and stability of the entire system.

[0076] For example, under the working conditions of high dust concentration and large gas flow rate, the air guiding member 8 can effectively promote the gas-water separation and ensure the efficient operation of the dust removal device. In terms of technical effects, the efficiency of gas-water separation and the energy-saving effect are significantly improved. The negative pressure is generated by the reduced diameter ring 802 to enhance the water absorption capacity of the water suction pipe 413 and promote the gas-water separation. The structure and performance of the system are optimized, and the comprehensive efficiency of the high-efficiency wet dust removal device for steel slag pretreatment is improved.

[0077] In some examples, the gas-water separator 4 further includes a water absorption member 417. The water absorption member 417 includes an annular water absorption edge 418. The annular water absorption edge 418 is arranged in the through hole 408 and is located behind the grid water blocking member 407. The annular water absorption edge 418 has a plurality of water absorption petals 419 arranged in a circumferential pattern. The plurality of water absorption petals 419 are arranged in a circumferential pattern to form a conical cylinder shape and are flexible members for adjusting the size of the through hole 408 according to the wind force.

[0078] During the actual operation of the wet dust removal device for steel slag pretreatment, for example, during a stable steel slag treatment operation: the water absorption member 417 in the gas-water separator 4 plays a role. The annular water absorption edge 418 is arranged in the through hole 408 and is located behind the grid water blocking member 407.

[0079] When the gas passes through, the conical cylinder structure formed by the plurality of circumferentially arranged water absorption petals 419 can effectively absorb the residual water in the gas. Since the water absorption petals 419 are flexible members, the size of the through hole 408 can be automatically adjusted according to the wind force. When the wind force is large, the water absorption petals 419 will be blown and the through hole 408 will be appropriately enlarged to ensure the smooth passage of the gas, while still being able to achieve a certain water absorption effect. When the wind force is small, the water absorption petals 419 can contract and fit more tightly, enhancing the water absorption capacity and improving the gas-water separation effect.

[0080] The advantages of this design are as follows: First, the size of the through hole 408 can be automatically adjusted according to the actual working conditions, balancing the gas passing amount and the water absorption effect, and improving the adaptability of the system. Second, the flexible water absorption petals 419 can effectively capture and absorb water, further improving the efficiency and quality of gas-water separation.

[0081] For example, in the case of unstable gas flow rate and wind speed, the water absorption member 417 can respond flexibly to ensure that the gas-water separator 4 always maintains good working performance.

[0082] In terms of technical effects, the adaptability of the gas-water separator 4 to different working conditions and the gas-water separation effect are significantly improved. Through the annular water absorption edge 418 and the flexible water absorption petals 419, the size of the through hole 408 is automatically adjusted according to the wind force to achieve efficient gas-water separation. The internal structure and function of the gas-water separator 4 are optimized, and the reliability and stability of the high-efficiency steel slag pretreatment wet dust removal device are enhanced.

[0083] In some examples, the annular water absorption edge 418 is connected to the water seepage member 409; the gas-water separator 4 further includes a baffle 420, and the baffle 420 is arranged in the front cavity 4021, and the inlet 403 faces the baffle 420.

[0084] During the operation of the steel slag pretreatment wet dust removal device, for example, in a continuous steel slag treatment process: the annular water absorption edge 418 is connected to the water seepage member 409, such as the annular abutting portion 410 or the extending portion 411 of the water seepage member 409, so that the absorbed water can be more effectively transferred to the annular abutting portion 410, thereby realizing the rapid discharge of water. In the front cavity 4021, the baffle 420 plays a role. When the dust-containing gas enters from the inlet 403, the baffle 420 can change the flow direction of the gas, so that the gas fully contacts the liquid in the front cavity 4021, promoting the preliminary separation of gas and water.

[0085] The advantages of this design are as follows: First, the synergistic effect between the annular water absorption edge 418 and the annular abutting portion 410 is strengthened, and the efficiency of water export is improved. Second, the setting of the baffle 420 optimizes the separation process of gas and water in the front cavity 4021 and improves the separation effect.

[0086] For example, when dealing with a large amount of dust-containing gas, this design can ensure that the gas-water separator 4 works more efficiently and stably, improving the performance of the entire dust removal device. In terms of technical effects, the collaborative working ability and separation effect of the gas-water separator 4 are significantly enhanced. By using the connection between the annular water absorption edge 418 and the annular abutting portion 410 and the guiding of the air flow by the baffle 420, the gas-water separation efficiency is improved. The structure and function of the gas-water separator 4 are further improved, and the operation stability and reliability of the high-efficiency steel slag pretreatment wet dust removal device are enhanced.

[0087] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not restrictive. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. An efficient wet dust removal device for steel slag pretreatment, characterized in that Comprising: Dust collection hood (1); Spray scrubbing tower (3), the dust collection hood (1) leading to the spray scrubbing tower (3); Gas-water separator (4), the spray scrubbing tower (3) leading to the gas-water separator (4); Diffuser chimney (5), the gas-water separator (4) leading to the diffuser chimney (5); Wherein, the gas-water separator (4) comprises: Main body (401), the main body (401) having a cavity (402); Partition member (406), the partition member (406) being arranged in the cavity (402) and dividing the cavity (402) into a front cavity (4021) and a rear cavity (4022); Mesh water baffle (407), the partition member (406) having a number of uniformly arranged through holes (408); The mesh water baffle (407) being arranged in the through holes (408); Water seepage member (409), one end of the water seepage member (409) abutting against the mesh water baffle (407), the water seepage member (409) having an annular abutting portion (410) and an extension portion (411), one end of the extension portion (411) being connected to the annular abutting portion (410); the water seepage member (409) further having a horizontal water absorption enhancing section (412), the horizontal water absorption enhancing section (412) being connected to the other end of the extension portion (411); the gas-water separator (4) further comprising a water suction pipe (413), the water suction pipe (413) being arranged on one side of the horizontal water absorption enhancing section (412), the water suction pipe (413) having a suction port (414), the suction port (414) facing the horizontal water absorption enhancing section (412).

2. The wet dust removal device for efficient steel slag pretreatment according to claim 1, wherein Further comprising: Venturi tube (2), the Venturi tube (2) being connected between the dust collection hood (1) and the spray scrubbing tower (3); Induced draft fan (7), the induced draft fan (7) being connected between the gas-water separator (4) and the diffuser chimney (5).

3. The wet dust removal device for efficient steel slag pretreatment according to claim 2, characterized in that, The cavity (402) has an inlet (403), a gas outlet (404) and a water outlet (405), the spray scrubbing tower (3) leading to the inlet (403); The inlet (403) and the water outlet (405) are located on one side of the partition member (406), the inlet (403) leading to the front cavity (4021), the bottom of the front cavity (4021) having the water outlet (405), the gas outlet (404) being located on the other side of the partition member (406), the rear cavity (4022) leading to the gas outlet (404); The front cavity (4021) and the rear cavity (4022) are communicated through the through holes (408).

4. An efficient wet dust removal device for steel slag pretreatment according to claim 3, characterized in that, The other end of the water seepage member (409) is used to lead water to the bottom of the front cavity (4021) and discharge it through the water outlet (405).

5. An efficient wet dust removal device for steel slag pretreatment according to claim 4, characterized in that, The annular abutting portion (410) is arranged in abutment with the through holes (408), and the extension portion (411) is strip-shaped.

6. The high-efficiency wet dust removal device for steel slag pretreatment according to claim 5, wherein The suction port (414) and the horizontal water absorption enhancing section (412) have a gap (415).

7. An efficient wet dust removal device for steel slag pretreatment according to claim 6, characterized in that, The lower part of the horizontal suction enhancement section (412) is provided with a water guiding drip flange (416) for guiding and dripping water droplets to the bottom of the front cavity (4021).

8. An efficient wet dust removal device for steel slag pretreatment according to claim 6, characterized in that, It further includes an air guiding member (8), and the air guiding member (8) includes: A connecting pipe (801) with both ends connected between the spray scrubber (3) and the inlet (403): A reduced diameter ring (802) with one end connected to the inner wall of the connecting pipe (801) and the other end having a gradually decreasing diameter. The reduced diameter ring (802) has a reduced diameter cavity (803), and there is a tapered interval (804) between the reduced diameter ring (802) and the connecting pipe (801). The tapered interval (804) faces the inlet (403). One end of the water suction pipe (413) away from the suction port (414) has a drainage port (9), and the drainage port (9) is communicated with the reduced diameter cavity (803).

9. An efficient wet dust removal device for steel slag pretreatment according to claim 8, characterized in that, The gas-liquid separator (4) further includes a water absorption member (417), and the water absorption member (417) includes: An annular water absorption edge (418) arranged in the through hole (408) and located behind the grid water blocking member (407). The annular water absorption edge (418) has a plurality of water absorption petals (419) arranged in a circumferential pattern. The plurality of water absorption petals (419) are arranged in a conical cylinder shape in a circumferential pattern and are flexible members for adjusting the size of the through hole (408) according to the wind force.

10. An efficient wet dust removal device for steel slag pretreatment according to claim 9, characterized in that, The annular water absorption edge (418) is connected to the water seepage member (409); the gas-liquid separator (4) further includes a baffle (420) arranged in the front cavity (4021), and the inlet (403) faces the baffle (420).

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