Efficient wet dust removal device for pretreatment of steel slag

Abstract

The embodiment of the invention relates to the technical field of steel slag dust removal, and provides an efficient steel slag pretreatment wet dust removal device which comprises a dust collection cover. The dust collection cover is communicated with the spray washing tower; the spray washing tower is communicated with the gas-water separator, and the spray washing tower is communicated with the gas-water separator; and the gas-water separator is communicated with the diffusion chimney. The venturi tube is connected between the dust collection cover and the spray washing tower; and the induced draft fan is connected between the gas-water separator and the diffusion chimney. According to the technical scheme, the technical problem that the amount of generated wastewater is large due to the fact that only a spray washing tower is used for treating dust generated in steel slag pretreatment in the prior art is solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of steel slag dust removal, and in particular, to a high-efficiency steel slag pretreatment wet dust removal device. Background Art

[0002] Wet dust removal for steel slag pretreatment is a dust removal technology used in the steel slag pretreatment process. After the dust-laden gas enters the dust removal equipment, it is fully contacted with the liquid (usually water). The dust is separated from the gas through the capture and condensation of the dust by the droplets. For example, in a spray scrubber, water contacts the dust-laden gas in the form of a spray, and larger dust particles are captured and precipitated by the droplets. In the spray scrubber, the dust-laden gas enters the tower and contacts the scrubbing liquid sprayed from top to bottom in reverse, achieving preliminary dust removal and removing some larger dust particles. The spray scrubber can effectively remove dust of various particle sizes, especially fine dust. Compared with dry dust removal, there is no risk of dust explosion. However, wet dust removal is large in volume and will produce wastewater containing a large amount of suspended matter and heavy metals. Due to long-term contact with water and corrosive gases, the equipment has high anti-corrosion requirements and relatively high maintenance costs. Therefore, it is necessary to cooperate with the spray scrubber and other dust removal equipment to deal with the dust generated during the 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-mentioned defects, the embodiments of the present disclosure provide a high-efficiency wet dust removal device for steel slag pretreatment, which solves the technical problem in the related art that the dust generated by steel slag pretreatment is treated solely by a spray washing tower, resulting in a large amount of wastewater.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a high-efficiency steel slag pretreatment wet dust removal device, comprising: Dust hood; A spray washing tower, wherein the dust collecting hood leads to the spray washing tower; A gas-water separator, the spray scrubber leading to the gas-water separator; A discharge chimney is provided, and the gas-water separator leads to the discharge chimney.

[0005] For example, at least one embodiment of the present disclosure provides a high-efficiency steel slag pretreatment wet dust removal device, which also includes: A venturi tube connected between the dust collecting hood and the spray washing tower; An induced draft fan is connected between the gas-water separator and the emission chimney.

[0006] For example, at least one embodiment of the present disclosure provides a high-efficiency steel slag pretreatment wet dust removal device, wherein the gas-water separator comprises: A main body, the main body having a cavity, the cavity having an inlet, a gas outlet and a water outlet, the spray scrubber leading to the inlet; a partition, the partition being arranged in the cavity, dividing the cavity into a front cavity and a rear cavity, the inlet and the water outlet being located on one side of the partition, the inlet leading to the front cavity, the bottom of the front cavity having the water outlet, the air outlet being located on the other side of the partition, and the rear cavity leading to the air outlet; A grid water retaining member, wherein the partition has a plurality of evenly arranged through holes, the front cavity and the rear cavity are connected through the through holes, and the grid water retaining member is arranged in the through holes.

[0007] For example, in at least one embodiment of the present disclosure, a high-efficiency steel slag pretreatment wet dust removal device is provided, wherein the gas-water separator further comprises: A water seepage member, one end of which abuts against the grid water retaining member, and the other end of which is used to guide water to the bottom of the front cavity and discharge it through the water outlet.

[0008] For example, in at least one embodiment of the present disclosure, a high-efficiency steel slag pretreatment wet dust removal device is provided, wherein the water permeable member has: an annular abutting portion, the annular abutting portion being disposed in abutment with the through hole; The extension part is in a strip shape, and one end of the extension part is connected to the annular abutting part.

[0009] For example, in at least one embodiment of the present disclosure, a high-efficiency steel slag pretreatment wet dust removal device is provided, wherein the water permeable component also has a horizontal suction section, and the horizontal suction section is connected to the other end of the extension portion; the gas-water separator also includes a water suction pipe, and the water suction pipe is arranged on one side of the horizontal suction section. The water suction pipe has a suction port, and the suction port faces the horizontal suction section and is spaced apart from the horizontal suction section.

[0010] For example, at least one embodiment of the present disclosure provides a high-efficiency steel slag pretreatment wet dust removal device, wherein the lower part of the horizontal suction section has a drip guide ridge, and the drip guide ridge is used to guide water droplets and drip them to the bottom of the front cavity.

[0011] For example, at least one embodiment of the present disclosure provides a high-efficiency steel slag pretreatment wet dust removal device, which also includes an air inducing member, wherein the air inducing member includes: A connecting pipe, both ends of which are connected between the spray washing tower and the inlet: A shrinking ring, one end of which is connected to the inner wall of the connecting pipe, and the other end of which has a gradually decreasing diameter. The shrinking ring has a shrinking cavity, and there is an annular conical space between the shrinking ring and the connecting pipe, and the annular conical space faces the inlet. The end of the suction pipe away from the suction port has a drainage port, and the drainage port is connected to the shrinking cavity.

[0012] For example, in at least one embodiment of the present disclosure, a high-efficiency steel slag pretreatment wet dust removal device is provided, wherein the gas-water separator further includes a water absorbing member, and the water absorbing member includes: An annular water-absorbing edge is arranged in the through hole and is located behind the grid water retaining member. The annular water-absorbing edge has a plurality of circumferentially arranged water-absorbing petals. The plurality of water-absorbing petals are circumferentially arranged in a cone shape and are flexible members for adjusting the size of the through hole according to wind force.

[0013] For example, at least one embodiment of the present disclosure provides a high-efficiency steel slag pretreatment wet dust removal device, wherein the annular water absorption edge is connected to the water permeable part; the gas-water separator also includes a baffle, which is arranged in the front cavity, and the inlet faces the baffle.

[0014] The beneficial effects of the embodiments of the present disclosure are: In the present disclosure, the wet dust removal device can effectively control dust emission, meet environmental protection requirements, and reduce operating costs. The dust removal efficiency in the steel slag pretreatment process is significantly improved, and wastewater discharge and equipment maintenance costs are reduced. The dust hood collects dust-containing gas, which is sequentially processed by a spray washing tower and a gas-water separator, and finally discharged through a venting chimney. A set of efficient, environmentally friendly and economical steel slag pretreatment wet dust removal system is constructed. The technical problem of relying solely on a spray washing tower to treat the dust generated by steel slag pretreatment, resulting in a large amount of wastewater, is well solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0016] Figure 1 This is a principle block diagram of a wet dust removal device in one embodiment of the present disclosure; Figure 2 for Figure 1 Schematic diagram of the external structure of the gas-water separator in the embodiment of the invention; Figure 3 for Figure 1A schematic diagram of the top view of the gas-water separator in the embodiment of the invention; Figure 4 for Figure 3 AA cross-sectional structure diagram; Figure 5 for Figure 4 Middle D is a schematic diagram of the partially enlarged structure; Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB; Figure 7 for Figure 3 Schematic diagram of the cross-sectional structure of the CC; Figure 8 for Figure 7 Middle E is a schematic diagram of a partially enlarged structure; In the figure: dust collecting hood 1, venturi tube 2, spray washing 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 retaining member 407, through hole 408, water seepage member 409, annular abutment portion 410, extension portion 411 , horizontal suction section -412, water suction pipe -413, suction port -414, interval -415, drip guide convex edge -416, water suction piece -417, annular water suction edge -418, water suction flap -419, baffle -420, dispersion chimney -5, induced draft fan -7, induced draft piece -8, connecting pipe -801, shrinking ring -802, shrinking cavity -803, annular cone interval -804, drainage port -9. DETAILED DESCRIPTION

[0017] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0018] In order 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. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0019] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0020] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0022] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1 As shown, it shows a high-efficiency steel slag pretreatment wet dust removal device in one embodiment of the present disclosure. In the steel slag pretreatment workshop of a steel plant, a dust collecting hood 1 is arranged above the steel slag processing equipment to collect the generated dust-containing gas and pass it to the spray washing tower 3. In the spray washing tower 3, the dust-containing gas is reversely contacted with the washing liquid sprayed from top to bottom, and the larger particles of dust are captured and settled by the droplets, thereby initially achieving dust removal. The gas treated by the spray washing tower 3 is passed to the gas-water separator 4, which separates the moisture in the gas. Finally, the treated relatively dry and clean gas is discharged into the atmosphere through the venting chimney 5.

[0024] The advantages of this design are: first, the dust-containing gas is effectively collected through the dust hood 1, which improves the comprehensiveness of the treatment. Second, the spray scrubber 3 can perform preliminary and effective treatment on the dust-containing gas and remove larger particles of dust. Third, the cooperation of the gas-water separator 4 and the gas-water separator 4 further improves the quality of the gas and reduces the generation and discharge of wastewater. For example, in the long-term pretreatment process of steel slag, this wet dust removal device can operate stably, effectively control dust emissions, and reduce the pressure and cost of wastewater treatment.

[0025] 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 collecting hood 1 and enters the spray washing tower 3 for preliminary dust removal, then enters the gas-water separator 4 to separate the gas and water, and finally discharged through the venting chimney 5. The process of wet dust removal in steel slag pretreatment is optimized, and the treatment effect and economy are improved.

[0026] like Figure 1 As shown, in some examples, the dust-containing gas collected by the dust hood 1 first passes through the venturi 2. The venturi 2 can accelerate and preliminarily mix the gas, so that the dust-containing gas enters the spray scrubber 3 more evenly, improving the scrubbing effect. The gas treated by the spray scrubber 3 enters the gas-water separator 4 for gas-water separation. Then, under the action of the induced draft fan 7, the separated gas is accelerated and transported to the emission chimney 5. The induced draft fan 7 provides power for the flow of gas, ensuring that the gas of the entire system can flow smoothly.

[0027] The advantages of this design are: first, the venturi tube 2 improves the uniformity and speed of gas entering the spray scrubber 3, enhancing the scrubbing effect. Second, the induced draft fan 7 ensures the stable transmission of gas in the system, avoiding blockage or poor air flow. For example, during the peak production period, a large amount of dusty gas generated by slag treatment can be quickly and effectively processed and discharged in this device, ensuring the cleanliness and safety of the production environment.

[0028] In terms of technical effects, the operation stability and processing efficiency of the entire wet dust removal device have been significantly improved. The dust-containing gas is collected by the dust collecting hood 1 and enters the spray washing tower 3 through the venturi 2. After being treated by the gas-water separator 4, it is sent to the discharge chimney 5 by the induced draft fan 7 for discharge. The structure and function of the steel slag pretreatment wet dust removal device have been improved, and its performance and reliability in practical applications have been improved.

[0029] like Figure 2~Figure 8As 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, an air outlet 404 and a water outlet 405, and the spray washing tower 3 leads to the inlet 403; the 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, the front cavity 4021 has a water outlet 405 at the bottom, 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 plurality of evenly arranged through holes 408, the front cavity 4021 and the rear cavity 4022 are connected through the through holes 408, and the grid water retaining member 407 is arranged in the through holes 408.

[0030] In 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 spray washing tower 3 to the gas-water separator 4. In the front cavity 4021, due to the change in 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 hole 408 on the partition 406. The grid water retaining member 407 provided in the through hole 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 processing link.

[0031] The advantages of this design are: first, the partition and structural design of the cavity realizes the preliminary separation of gas and water, thereby improving the separation efficiency; second, the provision of the grid water retaining member 407 enhances the interception effect of tiny water droplets, thereby improving the dryness of the gas.

[0032] For example, in long-term, high-intensity 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 are significantly improved. The physical properties and cavity structure of the gas-water mixture are utilized, combined with the grid water retaining member 407, to achieve efficient separation of gas and water. The internal structure of the gas-water separator 4 is optimized, and its separation performance in the wet dust removal device is improved.

[0033] In some examples, the gas-water separator 4 further includes a water seepage member 409 , one end of which abuts against the grid water retaining member 407 , and the other end is used to guide water to the bottom of the front cavity 4021 and discharge it through the water outlet 405 .

[0034] In the actual operation process of the slag pretreatment wet dust removal device, 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 passes through the grid water retaining member 407 for water retaining separation. The water seepage member 409 abutting against the grid water retaining member 407 plays a role. The water seepage member 409 can quickly guide the water intercepted by the grid water retaining member 407 to the bottom of the front cavity 4021. Then, the water is smoothly discharged through the water outlet 405.

[0035] The advantages of this design are: first, the intercepted water is discharged timely and effectively to prevent water from accumulating at the mesh water retaining member 407, thereby maintaining the water retaining effect and air permeability of the mesh water retaining member 407. Second, the efficiency and continuity of gas-water separation are improved to ensure that the gas-water separator 4 can operate stably.

[0036] For example, in long-term high-load production, the water seepage member 409 can continue to play a role, ensuring that the effect of gas-water separation is not affected, reducing the time of equipment maintenance and downtime. In terms of technical effects, the effect of gas-water separation and the stability of equipment operation are significantly enhanced. With the cooperation of the water seepage member 409 and the grid water retaining member 407, the separated water is quickly guided to be discharged. 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 improved.

[0037] In some examples, the water seepage member 409 has an annular abutting portion 410 , which is disposed in abutment with the through hole 408 ; the extension portion 411 is strip-shaped, and one end of the extension portion 411 is connected to the annular abutting portion 410 .

[0038] In the actual working condition of the high-efficiency steel slag pretreatment wet dust removal device, such as during the busy production period of the steel slag treatment plant: the annular abutment portion 410 of the water seepage member 409 is tightly abutted 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 retaining member 407 can be effectively collected by the annular abutment portion 410. One end of the extension portion 411 is connected to the annular abutment portion 410, and its strip-shaped structure can smoothly guide the collected water to the bottom of the front cavity 4021.

[0039] The advantages of this design are: first, the annular abutment portion 410 ensures good contact with the through hole 408, improving the efficiency and integrity of water collection. Second, the strip design of the extension portion 411 has a good diversion effect, which can quickly guide water away and avoid water accumulation.

[0040] For example, in a long-term, large-scale steel slag treatment process, the water-permeable member 409 of this structure can work continuously and stably to ensure the efficient operation of the gas-water separator 4. In terms of technical effects, the collection and flow-guiding performance of the water-permeable member 409 is significantly optimized. The water is collected by the annular abutment portion 410, and the water 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.

[0041] In some examples, the water permeable member 409 also has a horizontal suction section 412, which is connected to the other end of the extension portion 411; the gas-water separator 4 also includes a water suction pipe 413, which is arranged on one side of the horizontal suction section 412, and the water suction pipe 413 has a suction port 414, which faces the horizontal suction section 412 and has a gap 415 with the horizontal suction section 412.

[0042] During the operation of the wet dust removal device for steel slag pretreatment, for example, during the continuous high-intensity steel slag treatment operation: the horizontal suction section 412 of the water-permeable member 409 is connected to the other end of the extension 411. When the water flows along the extension 411 to the horizontal suction section 412, due to the special structure and position of the horizontal suction section 412, the adsorption and guiding effect on the water 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 suction section 412, and its suction port 414 faces the horizontal suction section 412 and has a gap 415 with the horizontal suction section 412. Under the suction force of the water suction pipe 413, the water is further accelerated to be sucked away from the horizontal suction section 412, thereby improving the drainage efficiency, and the design of the gap 415 can ensure that the water can fall into the front cavity 4021 without being sucked away by the water suction pipe 413.

[0043] The advantages of this design are: first, the horizontal suction section 412 enhances the ability to absorb and collect water, so that the water can be processed more concentratedly. Second, the cooperation between the water suction pipe 413 and the horizontal suction section 412 accelerates drainage through suction, thereby improving the speed and effect of gas-water separation.

[0044] For example, in the case of processing a large amount of dust-containing gas and generating a large amount of water, this design can ensure that the gas-water separator 4 can efficiently separate gas and water, and ensure 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 effect of the horizontal suction section 412 and the suction force of the water suction pipe 413, the discharge of water 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.

[0045] In some examples, the lower part of the horizontal suction increasing section 412 has a dripping water guide convex edge 416, and the dripping water guide convex edge 416 is used to guide the water droplets and drip them to the bottom of the front cavity 4021. In the actual operation of the high-efficiency steel slag pretreatment wet dust removal device, for example, in a long-term uninterrupted steel slag treatment process: when water flows through the horizontal suction increasing section 412, the dripping water guide convex edge 416 at the lower part of the horizontal suction increasing section 412 plays a role. The dripping water guide convex edge 416 can effectively guide the water droplets that are not sucked away by the suction pipe 413 in time and drip them to the bottom of the front cavity 4021.

[0046] The advantages of this design are: first, it further ensures that the water can drip accurately and quickly to the bottom of the front cavity 4021, reducing the residual water in the front cavity 4021 and improving the effect of gas-water separation. Second, even if the suction force of the water suction pipe 413 is insufficient or fails, the dripping water guide convex edge 416 can still play a certain auxiliary water guiding role, thereby enhancing the reliability of the system.

[0047] For example, when facing a sudden increase in the dust-containing gas processing volume or a temporary failure of the water suction pipe 413, the drip guide convex edge 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. The drip guide convex edge 416 guides the water to ensure that the water drips smoothly 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 improved.

[0048] In some examples, an air inducing member 8 is also included, which includes a connecting pipe 801, both ends of which are connected between the spray washing tower 3 and the inlet 403: one end of a reduction ring 802 is connected to the inner wall of the connecting pipe 801, and the diameter of the other end gradually decreases, the reduction ring 802 has a reduction cavity 803, and there is an annular conical gap 804 between the reduction ring 802 and the connecting pipe 801, and the annular conical gap 804 faces the inlet 403, and the end of the suction pipe 413 away from the suction port 414 has a drainage port 9, and the drainage port 9 is connected to the reduction cavity 803.

[0049] In the operation scenario of the slag pretreatment wet dust removal device, such as the normal production period of a steel plant: the connecting pipe 801 in the induced draft piece 8 tightly connects the spray washing tower 3 with the inlet 403 of the gas-water separator 4 to ensure smooth transmission of the gas. One end of the shrinking ring 802 is connected to the inner wall of the connecting pipe 801, and the diameter of the other end gradually decreases to form a shrinking cavity 803. When the gas passes through, due to the special structure of the shrinking ring 802, the air flow velocity will increase and a certain negative pressure will be generated. At the same time, the annular conical gap 804 between the shrinking ring 802 and the connecting pipe 801 faces the inlet 403, which helps to guide the airflow and enhance the negative pressure effect.

[0050] One end of the water suction pipe 413 away from the suction port 414 has a drainage port 9, which is connected to the shrinkage cavity 803. Under the negative pressure generated by the shrinkage ring 802, the suction force of the water suction pipe 413 on water can be enhanced, thereby improving the drainage efficiency.

[0051] The advantages of this design are: first, the negative pressure generated by the shrinking ring 802 can enhance the water absorption effect of the water absorption pipe 413 without additional power equipment, saving energy and cost. Second, the flow path and speed of the gas are optimized, improving the operating efficiency and stability of the entire system.

[0052] For example, under the condition of high dust concentration and large gas flow, the draft member 8 can effectively promote the separation of gas and water, and ensure the efficient operation of the dust removal device. In terms of technical effect, the efficiency of gas-water separation and energy saving effect are significantly improved. The shrinking ring 802 is used to generate negative pressure, enhance the water absorption capacity of the water absorption pipe 413, and promote gas-water separation. The structure and performance of the system are optimized, and the comprehensive efficiency of the high-efficiency steel slag pretreatment wet dust removal device is improved.

[0053] In some examples, the air-water separator 4 also includes a water absorbing member 417, which includes an annular water absorbing edge 418. The annular water absorbing edge 418 is arranged in the through hole 408 and is located behind the grid water retaining member 407. The annular water absorbing edge 418 has a plurality of circumferentially arranged water absorbing petals 419. The plurality of water absorbing petals 419 are arranged circumferentially in a conical cylinder shape and are flexible members for adjusting the size of the through hole 408 according to wind force.

[0054] During the actual operation of the slag pretreatment wet dust removal device, for example, during the stable slag treatment operation: the water absorbing member 417 in the gas-water separator 4 plays a role. The annular water absorbing edge 418 is arranged in the through hole 408 and is located behind the grid water retaining member 407.

[0055] When the gas passes through, the cone-shaped structure formed by the water-absorbing flaps 419 arranged in a circle can effectively absorb the residual moisture in the gas. Since the water-absorbing flaps 419 are flexible, the size of the through hole 408 can be automatically adjusted according to the wind force. When the wind force is strong, the water-absorbing flaps 419 will be blown to appropriately expand the through hole 408 to ensure the smooth passage of the gas, while still achieving a certain water absorption effect. When the wind force is weak, the water-absorbing flaps 419 can shrink and fit more closely, thereby enhancing the water absorption capacity and improving the gas-water separation effect.

[0056] The advantages of this design are: first, the size of the through hole 408 can be automatically adjusted according to the actual working conditions to balance the gas flow rate and the water absorption effect, thereby improving the adaptability of the system. Second, the flexible water absorption flap 419 can effectively capture and absorb water, further improving the efficiency and quality of gas-water separation.

[0057] For example, when the gas flow rate and wind speed are unstable, the water absorbing member 417 can respond flexibly to ensure that the gas-water separator 4 always maintains good working performance.

[0058] 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. The size of the through hole 408 is automatically adjusted according to the wind force through the annular water absorption edge 418 and the flexible water absorption flap 419 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 efficient steel slag pretreatment wet dust removal device are enhanced.

[0059] In some examples, the annular water absorption edge 418 is connected to the water permeable member 409 ; the gas-water separator 4 further includes a baffle 420 , which is disposed in the front cavity 4021 , and the inlet 403 faces the baffle 420 .

[0060] In the operation of the wet dust removal device for steel slag pretreatment, for example, in the continuous steel slag treatment process: the annular water absorption edge 418 is connected to the water seepage member 409, such as the annular abutment portion 410 or the extension portion 411 of the water seepage member 409, so that the absorbed water can be more effectively transferred to the annular abutment portion 410, thereby achieving rapid discharge of water. In the front cavity 4021, the baffle 420 plays a role. When the dust-laden gas enters from the inlet 403, the baffle 420 can change the flow direction of the gas, so that the gas is fully in contact with the liquid in the front cavity 4021, promoting the initial separation of gas and water.

[0061] The advantages of this design are: first, the synergy between the annular water absorption edge 418 and the annular abutment portion 410 is strengthened, thereby improving the efficiency of water extraction; second, the setting of the baffle 420 optimizes the separation process of air and water in the front cavity 4021, thereby improving the separation effect.

[0062] For example, when processing a large amount of dust-containing gas, this design can ensure that the gas-water separator 4 works more efficiently and stably, and improve 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. The gas-water separation efficiency is improved by connecting the annular water absorption edge 418 with the annular abutment portion 410 and guiding the airflow by the baffle 420. The structure and function of the gas-water separator 4 are further improved, and the operating stability and reliability of the high-efficiency steel slag pretreatment wet dust removal device are enhanced.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. An efficient steel slag pretreatment wet dust removal device, characterized in that: include: Dust hood (1); A spray washing tower (3), wherein the dust collecting hood (1) leads to the spray washing tower (3); A gas-water separator (4), the spray scrubber (3) leading to the gas-water separator (4); A discharge chimney (5), the gas-water separator (4) leads to the discharge chimney (5).

2. The high-efficiency steel slag pretreatment wet dust removal device according to claim 1 is characterized in that: Also includes: A venturi tube (2), the venturi tube (2) being connected between the dust collecting hood (1) and the spray washing tower (3); An induced draft fan (7), the induced draft fan (7) being connected between the gas-water separator (4) and the emission chimney (5).

3. The high-efficiency steel slag pretreatment wet dust removal device according to claim 2 is characterized in that: The gas-water separator (4) comprises: A main body (401), the main body (401) having a cavity (402), the cavity (402) having an inlet (403), a gas outlet (404) and a water outlet (405), the spray scrubbing tower (3) leading to the inlet (403); a partition (406), the partition (406) being arranged in the cavity (402) and dividing the cavity (402) into a front cavity (4021) and a rear cavity (4022); the inlet (403) and the water outlet (405) being located on one side of the partition (406); the inlet (403) leading to the front cavity (4021); the front cavity (4021) having the water outlet (405) at the bottom; the air outlet (404) being located on the other side of the partition (406); and the rear cavity (4022) leading to the air outlet (404); The grid water retaining member (407) has a plurality of evenly arranged through holes (408), the front cavity (4021) and the rear cavity (4022) are connected via the through holes (408), and the grid water retaining member (407) is disposed in the through holes (408).

4. The high-efficiency steel slag pretreatment wet dust removal device according to claim 3 is characterized in that: The gas-water separator (4) further comprises: A water seepage member (409), one end of the water seepage member (409) abutting against the grid water retaining member (407), and the other end of the water seepage member (409) being used to guide water to the bottom of the front cavity (4021) and discharge the water through the water outlet (405).

5. The high-efficiency steel slag pretreatment wet dust removal device according to claim 4 is characterized in that: The water seepage member (409) comprises: an annular abutment portion (410), the annular abutment portion (410) being disposed in abutment with the through hole (408); An extension portion (411), the extension portion (411) is in a strip shape, and one end of the extension portion is connected to the annular abutment portion (410).

6. The high-efficiency steel slag pretreatment wet dust removal device according to claim 5, characterized in that: The water-permeable member (409) further comprises a horizontal suction-enhancing section (412), wherein the horizontal suction-enhancing section (412) is connected to the other end of the extension portion (411); the gas-water separator (4) further comprises a water suction pipe (413), wherein the water suction pipe (413) is arranged on one side of the horizontal suction-enhancing section (412), and wherein the water suction pipe (413) has a suction port (414), wherein the suction port (414) faces the horizontal suction-enhancing section (412) and has a gap (415) with the horizontal suction-enhancing section (412).

7. The high-efficiency steel slag pretreatment wet dust removal device according to claim 6, characterized in that: The lower part of the horizontal suction enhancement section (412) is provided with a dripping convex edge (416), and the dripping convex edge (416) is used to guide water drops and drip them to the bottom of the front cavity (4021).

8. The high-efficiency steel slag pretreatment wet dust removal device according to claim 6, characterized in that: It also includes an air inducing member (8), wherein the air inducing member (8) includes: A connecting pipe (801), wherein both ends of the connecting pipe (801) are connected between the spray washing tower (3) and the inlet (403): A shrinking ring (802), one end of the shrinking ring (802) is connected to the inner wall of the connecting pipe (801), and the diameter of the other end gradually decreases. The shrinking ring (802) has a shrinking cavity (803). There is an annular conical spacer (804) between the shrinking ring (802) and the connecting pipe (801), and the annular conical spacer (804) faces the inlet (403). The end of the water suction pipe (413) away from the suction port (414) has a drainage port (9), and the drainage port (9) is connected to the shrinking cavity (803).

9. The high-efficiency steel slag pretreatment wet dust removal device according to claim 8, characterized in that: The gas-water separator (4) further comprises a water absorbing member (417), wherein the water absorbing member (417) comprises: An annular water absorption edge (418), the annular water absorption edge (418) being arranged in the through hole (408) and located behind the grid water retaining member (407), the annular water absorption edge (418) having a plurality of circumferentially arranged water absorption flaps (419), the plurality of circumferentially arranged water absorption flaps (419) being a conical cylinder and being a flexible member, and being used to adjust the size of the through hole (408) according to wind force.

10. The high-efficiency steel slag pretreatment wet dust removal device according to claim 9, characterized in that: The annular water absorption edge (418) is connected to the water seepage member (409); the gas-water separator (4) further comprises a baffle (420), the baffle (420) being arranged in the front cavity (4021), and the inlet (403) facing the baffle (420).

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