An upward spraying type anti-blocking nozzle and arrangement method

Abstract

The present application relates to a kind of anti-blocking nozzle structure and its arrangement method in the working condition of upward spraying, belong to metallurgical cooling nozzle arrangement technical field.The nozzle includes spray rod, nozzle and blocking piece, blocking piece is carbon steel or stainless steel L-shaped plate body, arranged above spray rod or nozzle, for blocking outside impurities to fall into nozzle water outlet;Nozzle is set to the opposite direction of blocking piece.This application also limits the distance parameters of spray angle, blocking piece and nozzle and the parameters such as adjacent nozzle spacing and edge distance in nozzle arrangement method.The present application is designed by the physical shielding of L-shaped blocking piece and the deflection angle of nozzle, which effectively prevents external impurities from blocking the nozzle, and ensures that the spray coverage is complete and uniform, suitable for continuous casting secondary cooling zone, steel rolling, quenching and other upward spraying or side-upward spraying working conditions.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical cooling nozzle arrangement technology, and relates to an upward-spraying anti-clogging nozzle and its arrangement method. Background Technology

[0002] A nozzle is a device that ejects liquid or gas in a specific shape, speed, and direction. It is widely used in cleaning, cooling, humidifying, dust removal, spraying, and cutting processes in industries such as metallurgy, power generation, chemicals, papermaking, and environmental protection. In the iron and steel metallurgy industry, nozzles are extensively used to cool billets or steel products in processes such as continuous casting secondary cooling zones, rolling mill cooling, and quenching. As a key actuator, the stability of the nozzle directly affects the operating efficiency and product quality of the entire system.

[0003] In real industrial environments, nozzles operate for extended periods in high-temperature, high-humidity, high-dust, and particulate-laden media, making them highly susceptible to clogging. Nozzle clogging leads to reduced jet flow, distorted jet shape, and deteriorated atomization, resulting in problems such as excessively high localized temperatures on the object being cooled or cleaned, insufficient surface cleanliness, and uneven reaction. In severe cases, it can cause equipment damage, production line shutdowns, product scrapping, and even safety accidents. Therefore, nozzle anti-clogging is a key research focus in the field of nozzle technology.

[0004] In existing technologies, improvements to the nozzle clogging problem mainly include the following three technical directions: The first category involves optimizing the internal structure of the nozzle. This involves reducing the risk of suspended matter in the medium depositing and forming scale inside the nozzle by increasing the flow channel diameter, designing internal guide channels, adopting a spin or self-cleaning structure, and adding filters. This type of technology is effective in improving internal scaling and clogging caused by salts and chemical precipitates contained in the medium itself, but it lacks protection against larger, harder impurities in the external environment, such as pipe debris, welding slag, rust, and iron oxide scale.

[0005] The second category involves optimizing the nozzle arrangement. This involves adjusting parameters such as nozzle deflection angle, spacing, and spray angle to improve the uniformity of spray coverage or increase localized impact force. For example, uniformly setting the nozzle deflection angle can eliminate overlapping and misalignment defects, or determining the optimal nozzle height and spacing based on water distribution tests and solidification heat transfer models. This type of technology focuses on optimizing cooling effects and spray coverage uniformity, but does not address nozzle clogging issues.

[0006] The third category is external nozzle anti-clogging structures. This involves adding a blocker or protective structure to the outside of the nozzle to prevent impurities from entering. For example, a flexible blocker can be installed at the air conditioner nozzle, using water pressure to control its opening and closing. When not in operation, the nozzle is sealed to prevent dirt from entering. While this technology proposes an external anti-clogging approach, its flexible blocker relies on water pressure to open and close, making its structure relatively complex. Furthermore, it is suitable for air conditioning cleaning scenarios but lacks applicability for protecting against large particles and high-temperature iron oxide scale in overhead spraying conditions in the metallurgical industry.

[0007] More importantly, the addition of an external shielding structure inevitably occupies the space above the nozzle jet stream, interfering with the jet manifold and resulting in a reduced spray coverage and decreased cooling uniformity. However, existing research on nozzle arrangement optimization assumes no shielding and does not consider the need to redesign arrangement parameters such as deflection angle, spacing, and edge distance when shielding is present. Furthermore, research on external anti-clogging structures focuses only on the anti-clogging function of the shielding itself, without addressing the interference relationship between the shielding and the jet manifold and its impact on arrangement parameters. In other words, the anti-clogging problem and the spray coverage uniformity problem are currently separated in existing technologies, and there is no systematic solution that comprehensively considers both.

[0008] Especially in the upward spraying operation in the metallurgical field (where the nozzle sprays cooling water upwards), external impurities easily fall into the nozzle outlet under gravity, making anti-clogging a pressing need. Furthermore, adding shielding components exacerbates jet flow interference, further deteriorating the uniformity of spray coverage. Therefore, there is an urgent need for an anti-clogging nozzle and its systematic arrangement method that can effectively prevent external impurities from falling into the nozzle outlet while ensuring complete and uniform spray coverage under upward spraying conditions. Summary of the Invention

[0009] In view of this, the present invention aims to solve the technical problem of how to effectively prevent external impurities from falling into the nozzle outlet while ensuring complete and uniform spray coverage under upward spray conditions, so as to achieve a stable cooling effect, and provides an upward spray anti-clogging nozzle and its arrangement method.

[0010] To achieve the above objectives, the present invention provides the following technical solution: An upward-spraying anti-clogging nozzle includes a spray bar and a nozzle head, and also includes a blocking component; The spray bar is a square or round hollow tube used to connect the cooling water pipe and the spray head; The nozzle is square or round and is mounted on the spray bar to spray cooling water. The spray angle of the cooling water sprayed by the nozzle is α. The blocking component is an L-shaped plate made of carbon steel or stainless steel, arranged on the spray bar or the spray head, located above the spray head, and used to block external impurities from falling into the outlet of the spray head. The nozzle is deflected in the opposite direction to the blocking member, with a deflection angle of θ, where θ satisfies... .

[0011] Preferably, the spray angle α of the cooling water ejected by the nozzle is 20°~90°.

[0012] Preferably, the vertical distance D1 between the blocking member and the nozzle outlet satisfies: ; Wherein, D1 represents the vertical distance between the blocking member and the nozzle outlet, in mm; R represents the larger value of the diameter (circular) or side length (square) of the spray bar and the nozzle, in mm; δ ranges from 5 to 20 mm.

[0013] Preferably, the distance H1 from the blocking member beyond the nozzle satisfies: ; Wherein, H1 represents the distance of the blocking element beyond the nozzle, in mm; D1 represents the vertical distance between the blocking element and the nozzle outlet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

[0014] Preferably, the nozzle is a water nozzle or an air-water nozzle.

[0015] The present invention also provides a method for arranging the above-mentioned overhead spray anti-clogging nozzle, comprising the following steps: S1: Deflect the nozzle in the opposite direction to the blocking member by an angle of θ; S2: The nozzles are arranged side by side along the width of the billet, and the spraying distance between two adjacent nozzles is L1; S3: The spray center of the first nozzle along the deflection side extends beyond the billet and is L2 from the edge of the billet; S4: The last nozzle along the deflection side is directly facing the billet, at a distance of L3 from the edge of the billet.

[0016] Preferably, the spray distance L1 between two adjacent nozzles satisfies: ; Wherein, L1 represents the spraying distance between two adjacent nozzles, in mm; H2 represents the spraying distance between the nozzle and the billet, in mm; D1 represents the vertical distance between the blocking member and the nozzle outlet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

[0017] Preferably, the distance L2 from the edge of the billet to the first nozzle along the deflection side satisfies: ; Wherein, L2 represents the distance from the first nozzle along the deflection side to the edge of the billet, in mm; H2 represents the spraying distance from the nozzle to the billet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

[0018] Preferably, the distance L3 from the edge of the billet to the last nozzle along the deflection side satisfies: ; Wherein, L3 represents the distance from the last nozzle along the deflection side to the edge of the billet, in mm; H2 represents the spraying distance of the nozzle from the billet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes an L-shaped fixed obstruction above the nozzle to physically block the area directly above the nozzle outlet. This prevents falling objects from entering the nozzle outlet by catching them and allowing them to slide down the plate. This effectively prevents nozzle clogging caused by external impurities during upward spraying. Compared to water-pressure-driven elastic obstructions, the L-shaped fixed obstruction of this invention has a simple structure, requires no additional power, and offers high reliability, making it suitable for harsh metallurgical conditions characterized by high temperature and humidity.

[0020] This invention deflects the nozzle at a specific angle in the opposite direction to the obstruction, causing the cooling water spray direction to deviate from the area where the obstruction is located. This avoids interference from the obstruction with the spray flow pattern and ensures that the spray coverage area is not affected by obstruction. The range of deflection angles ensures that the spray flow is not interrupted by the obstruction while effectively reaching the surface of the cast billet, achieving a balance between anti-clogging and spray coverage.

[0021] This invention limits the vertical distance between the blocking component and the nozzle outlet, as well as the distance the blocking component extends beyond the nozzle, so that the blocking component is in the optimal position in both the vertical and horizontal directions. This achieves effective blocking without interfering with the jet flow pattern, thus balancing the anti-clogging function with the jet performance.

[0022] This invention uses a systematic arrangement method to limit the spacing between adjacent nozzles and the distance between the edge nozzles and the edge of the billet, so that multiple nozzles can still achieve complete coverage of the lower surface of the billet under deflection conditions, including the corner areas on the deflection side and the far deflection side, thus ensuring uniform cooling.

[0023] This invention has a simple structure, low cost, and requires no additional maintenance. It is suitable for overhead or side-overhead spraying conditions such as continuous casting secondary cooling zone, steel rolling cooling, and quenching, and can improve the long-term operational reliability of the nozzle under harsh conditions.

[0024] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the anti-clogging nozzle and its arrangement method according to an embodiment of the present invention; Reference numerals: 1-Sprayer head, 2-Spray bar, 3-Blocking component, 4-Spray water coverage area, 5-Continuously cast billet. Detailed Implementation

[0026] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] Example 1 like Figure 1 As shown, an embodiment of the present invention provides an upward-spraying anti-clogging nozzle, including a spray bar 2, a nozzle 1, and a blocking component 3.

[0029] The spray bar 2 is a square or round hollow tube used to connect the cooling water pipe and the nozzle 1. As a cooling water delivery channel, one end of the spray bar 2 connects to the cooling water supply pipe, and the other end connects to the nozzle 1, delivering cooling water to the nozzle 1. The cross-sectional shape of the spray bar 2 can be square or round depending on the actual installation space and pipe interface requirements. The material can be stainless steel or carbon steel to meet the corrosion resistance and high-temperature resistance requirements of different working conditions.

[0030] Nozzle 1, square or round, is mounted on spray bar 2 and is used to spray cooling water. The spray angle α of the cooling water sprayed from nozzle 1 is 20°~90°. The spray angle α refers to the apex angle of the cone-shaped spray area of ​​cooling water sprayed from nozzle 1. The range of spray angle α, 20°~90°, covers common operating conditions from narrow-beam concentrated spray to wide-range diffusion spray. When α is less than 20°, the spray range is too narrow, the coverage area of ​​a single nozzle is insufficient, requiring an increase in the number of nozzles, leading to increased costs; when α is greater than 90°, the spray velocity decays too quickly, the impact force is insufficient, and the cooling effect decreases. Nozzle 1 can be a water nozzle or an air-water nozzle. Water nozzles spray only cooling water and are suitable for general cooling conditions; air-water nozzles atomize water by mixing in compressed air and are suitable for conditions requiring high cooling uniformity.

[0031] The blocking component 3 is an L-shaped plate made of carbon steel or stainless steel, arranged on the spray bar 2 or the nozzle 1, located above the nozzle 1, and is used to block external impurities from falling into the outlet of the nozzle 1.

[0032] The blocking component 3 has an L-shaped plate structure, with one side fixed to the spray rod 2 and the other side extending horizontally above the nozzle 1. The advantages of the L-shaped structure are: the vertical side provides fixed support, the horizontal side provides shielding area, the structure is simple, and no additional fasteners are required. The blocking component 3 is made of carbon steel (such as Q235B) or stainless steel (such as 304, 316) to meet the corrosion resistance requirements of different working conditions. The thickness of the blocking component 3 is 1~5mm. When the thickness is less than 1mm, the L-shaped plate is prone to warping and deformation in high temperature and high humidity environments, reducing the shielding effect; when the thickness is greater than 5mm, the weight of the plate increases, the load on the spray rod 2 increases, and the material cost increases. In a preferred embodiment, the thickness of the blocking component 3 is 3mm.

[0033] Deflection angle θ: The nozzle of this invention is deflected in the opposite direction to the blocking member 3 by an angle θ, where θ satisfies... The deflection angle θ refers to the angle of inclination of the spray center axis of nozzle 1 relative to the vertical direction.

[0034] After the installation of the blocking component 3, which is located directly above the nozzle 1, it will inevitably block part of the spray flow. If the nozzle is kept at 0° deflection (spraying directly upwards), the blocking component 3 will directly block the spray flow, resulting in a reduction in the spray coverage area and a decrease in the cooling effect. Therefore, the nozzle is deflected at a certain angle θ in the opposite direction to the blocking component 3, so that the spray direction of the cooling water deviates from the area where the blocking component 3 is located, thus achieving a balance between anti-blocking and spray coverage.

[0035] The lower limit of the deflection angle θ is taken as Reason: When θ = At this point, the edge of the jet cone near the obstruction coincides exactly with the vertical direction, meaning the jet flow is just not interfered with by the obstruction 3. If θ < The edge of the jet cone near the blocking member will enter the blocking area of ​​the blocking member 3, and the jet flow will be cut off.

[0036] The upper limit of the deflection angle θ is 90°. Reason: When θ = 90° - At that time, the far-blocking edge of the jet cone is exactly horizontal, meaning the jet stream just reaches the lower surface of the cast billet. If θ > 90° - The far-blocking edge of the spray cone will point upwards in the horizontal direction, and some cooling water will not be able to reach the surface of the billet 5, resulting in waste.

[0037] The positional relationship between the blocking component 3 and the nozzle 1: The vertical distance D1 between the blocking component 3 and the water outlet of the nozzle 1 satisfies: Where D1 represents the vertical distance between the blocking component 3 and the water outlet of the nozzle 1, in mm; R represents the larger value of the diameter (circular) or side length (square) of the spray bar 2 and the nozzle 1, in mm; δ ranges from 5 to 20 mm.

[0038] Sufficient vertical distance must be maintained between the blocking component 3 and the water outlet of the nozzle 1 to facilitate the installation, disassembly, and maintenance of the nozzle 1. A margin of 0.5R ensures that the blocking component 3 does not interfere with the nozzle 1 body; δ is a safety margin, ranging from 5 to 20 mm to accommodate the installation space requirements of different nozzle sizes. When δ < 5 mm, the installation and operation space is insufficient; when δ > 20 mm, the blocking component 3 is positioned too high, reducing the area of ​​obstruction above the water outlet of the nozzle 1 and decreasing the anti-clogging effect.

[0039] The distance H1 that the blocking element 3 extends beyond the nozzle must meet the following requirements: Where H1 represents the distance of the blocking element 3 beyond the nozzle, in mm; D1 represents the vertical distance between the blocking element 3 and the outlet of the nozzle 1, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

[0040] This configuration ensures that, under nozzle deflection conditions, the blocking element 3 effectively covers the area above the nozzle outlet of the spray head 1 where objects are falling, without interfering with the jet flow pattern. The lower limit of H1 ensures that the horizontal blocking range of the blocking element 3 is sufficient to cover the trajectory of falling impurities; the upper limit of H1 ensures that the blocking element 3 does not extend excessively and interfere with the far end area of ​​the jet cone.

[0041] Example 2 Based on the anti-clogging nozzle of the upward-spraying type described in Embodiment 1, the present invention also provides a method for arranging it, including the following steps: S1: The nozzle deflects in the opposite direction to the blocking component, with a deflection angle of θ.

[0042] The deflection angle θ satisfies This step deflects the cooling water jet direction away from the area where the obstruction 3 is located, preventing the obstruction 3 from interfering with the jet flow.

[0043] S2: Arrange the nozzles side by side along the width of the billet 5, with the spraying distance between two adjacent nozzles being L1.

[0044] L1 satisfies: Where L1 represents the spraying distance between two adjacent nozzles, in mm; H2 represents the spraying distance between the nozzle and the billet 5, in mm; D1 represents the vertical distance between the blocking part 3 and the outlet of the nozzle 1, in mm; θ represents the deflection angle of the nozzle, in °; α represents the spray angle of the nozzle, in °.

[0045] Since the blocking element 3 obstructs part of the spray area near the blocking element of the nozzle, a minimum overlap distance must be maintained between adjacent nozzles so that the spray range of the later nozzle can cover the area obstructed by the previous nozzle. At the same time, the distance between adjacent nozzles should not be too large, otherwise there will be a spray gap on the surface of the billet 5, resulting in uneven cooling; therefore, an upper and lower limit L1 is set.

[0046] S3: The spray center of the first nozzle on the deflection side extends beyond the billet 5, and the distance from the edge of the billet 5 is L2.

[0047] L2 satisfies: Where L2 represents the distance from the first nozzle along the deflection side to the edge of the billet, in mm.

[0048] The corner area of ​​the deflected slab (5 corners) is easily overlooked. The spray center of the first nozzle needs to extend a certain distance beyond the edge of the slab (5 corners) to ensure sufficient water coverage in the corner area. At that time, a spray blank area will appear at the deflected corner of the 5th casting billet.

[0049] S4: The last nozzle along the deflection side is directly facing the billet 5, and the distance from the edge of the billet 5 is L3.

[0050] L3 satisfies: Where L3 represents the distance from the last nozzle along the deflection side to the edge of the billet, in mm.

[0051] The corner of the billet 5 furthest from the deflection side also needs to be sprayed, with the last nozzle's distance from the edge of the billet 5 not exceeding the maximum coverage area of ​​the spray cone on that side. At that time, a spray blank area will appear at the far deflection side corner of the billet 5.

[0052] Example 3 This embodiment provides an overhead spray anti-clogging nozzle and its arrangement for use in the secondary cooling section of a continuous casting machine.

[0053] 3.1 Setting Nozzle Structure Parameters The nozzle type is a water nozzle.

[0054] The spray bar 2 is a circular hollow tube with a diameter of 25mm.

[0055] Nozzle 1 is a circular water nozzle with a spray angle α of 40° and a diameter of 30mm.

[0056] The blocking component 3 is an L-shaped Q235B carbon steel plate with a thickness of 3mm. One side is fixed to the spray rod 2, and the other side extends horizontally above the nozzle 1.

[0057] The vertical distance between the blocking component 3 and the water outlet of the nozzle 1 is D1 = 0.5 × 30 + 10 = 25 mm (take δ = 10 mm).

[0058] The distance H1 beyond the nozzle of the blocking component 3 is required to be within the range of 29.8~68.7mm, and we take 50mm.

[0059] 3.2 Setting Layout Parameters The required range for the deflection angle θ is [ ,(90°- [ )], that is, 20°~70°, take 40°.

[0060] The spraying distance H2 between the nozzle and the billet 5 is 200mm.

[0061] The required spray distance L1 between two adjacent nozzles is 94.0~273.6mm, and we take 200mm.

[0062] The distance L2 from the spray center of the first nozzle on the deflection side to the edge of the billet is required to be L2≥72.8mm, so we take 72.8mm.

[0063] The distance L3 from the spray center of the last nozzle on the deflection side to the edge of the billet is required to be L3≤346.4mm, so we take 346.4mm.

[0064] 3.3 Work Process During continuous casting, secondary cooling water is sprayed from nozzle 1 via spray bar 2. Because the nozzle is offset by 40° in the opposite direction to the blocking element 3, the blocking element 3 covers the area directly above the nozzle 1 outlet. Iron oxide scale particles falling from above are caught by the L-shaped blocking element 3 and slide down the plate, preventing them from entering the nozzle 1 outlet, thus effectively avoiding nozzle clogging. Simultaneously, according to the dimensions and deflection angle θ designed according to this invention, the blocking element 3 does not interfere with the sprayed water. With this arrangement method, the sprayed water can completely cover the lower surface of the billet 5, ensuring uniform cooling of the billet.

[0065] The overhead spray anti-clogging nozzle of this embodiment effectively resists the influence of external impurities on the nozzle. No clogging was found in the nozzle during long-term operation, and the surface of the billet 5 showed good temperature uniformity, which greatly improved the operational stability and product quality of the continuous casting secondary cooling section.

[0066] Example 4 To fully disclose the endpoint values ​​of the parameter range in the claims, the following variant embodiments are added: Variant Example 1: The spray angle α is set to a lower limit of 20°. Spray bar 2 has a diameter of 20mm, nozzle 1 has a diameter of 25mm, δ=5mm, and D1=0.5×25+5=17.5mm. The deflection angle θ is set to... =10°. This embodiment is suitable for narrow-beam concentrated spray conditions, such as locally enhanced cooling areas.

[0067] Variant Example 2: The spray angle α is set to the upper limit of 90°. Spray bar 2 has a diameter of 40mm, nozzle 1 has a diameter of 50mm, δ=20mm, and D1=0.5×50+20=45mm. The deflection angle θ is set to 90°. =45°. This embodiment is suitable for a wide range of diffusion spraying conditions, such as large-area uniform cooling regions.

[0068] Variant Example 3: The barrier 3 is made of 304 stainless steel with a thickness of 1mm. It is suitable for highly corrosive environments (such as cooling water containing chloride ions). The 1mm thickness can maintain structural strength in corrosive environments while reducing weight.

[0069] Variant Example 4: The blocking component 3 is made of 316 stainless steel with a thickness of 5mm. It is suitable for high-temperature impact conditions (such as quenching lines), and the 5mm thickness can withstand repeated impacts from high-temperature thermal stress without deformation.

[0070] Variant Example 5: The nozzle type is an air-water nozzle with a spray angle α of 60° and a deflection angle θ of 30°. It is suitable for applications requiring high cooling uniformity, and the fine water mist formed by the air-water mixture can still ensure uniform coverage even with the deflection arrangement.

[0071] Example 5 The upward-spraying anti-clogging nozzle and its arrangement method of this invention are applicable to upward-spraying or side-upward-spraying scenarios in continuous casting secondary cooling zones, rolling mill cooling, quenching, and other operating conditions. In these conditions, the nozzles spray cooling water upwards or at an angle, and external impurities easily fall into the nozzle outlet under the influence of gravity. This invention achieves reliable anti-clogging function without sacrificing the uniformity of spray coverage through the physical shielding of the L-shaped blocking component and the synergistic design of the deflection angle θ.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tilting spray anti-clogging nozzle, comprising a spray bar and a nozzle head, characterized in that, It also includes blocking components; The spray bar is a square or round hollow tube used to connect the cooling water pipe and the spray head; The nozzle is square or round and is mounted on the spray bar to spray cooling water. The spray angle of the cooling water sprayed by the nozzle is α. The blocking component is an L-shaped plate made of carbon steel or stainless steel, arranged on the spray bar or the spray head, located above the spray head, and used to block external impurities from falling into the outlet of the spray head. The nozzle is deflected in the opposite direction to the blocking member, with a deflection angle of θ, where θ satisfies... .

2. The anti-clogging nozzle for upward spraying according to claim 1, characterized in that, The spray angle α of the nozzle that sprays cooling water is 20°~90°.

3. The anti-clogging nozzle for upward spraying according to claim 1, characterized in that, The vertical distance D1 between the blocking member and the nozzle outlet satisfies: ； Wherein, D1 represents the vertical distance between the blocking member and the nozzle outlet, in mm; R represents the larger value of the diameter (circular) or side length (square) of the spray bar and the nozzle, in mm; δ ranges from 5 to 20 mm.

4. The anti-clogging nozzle for upward spraying according to claim 3, characterized in that, The distance H1 by which the blocking member extends beyond the nozzle satisfies: ； Wherein, H1 represents the distance of the blocking element beyond the nozzle, in mm; D1 represents the vertical distance between the blocking element and the nozzle outlet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

5. A top-mounted anti-clogging nozzle according to claim 1, characterized in that, The type of nozzle is a water nozzle or an air-water nozzle.

6. A method for arranging an upward-spraying anti-clogging nozzle as described in claim 1, characterized in that, Includes the following steps: S1: Deflect the nozzle in the opposite direction to the blocking member by an angle of θ; S2: The nozzles are arranged side by side along the width of the billet, and the spraying distance between two adjacent nozzles is L1; S3: The spray center of the first nozzle along the deflection side extends beyond the billet and is L2 from the edge of the billet; S4: The last nozzle along the deflection side is directly facing the billet, at a distance of L3 from the edge of the billet.

7. The arrangement method according to claim 6, characterized in that, The spray distance L1 between two adjacent nozzles satisfies: ； Wherein, L1 represents the spraying distance between two adjacent nozzles, in mm; H2 represents the spraying distance between the nozzle and the billet, in mm; D1 represents the vertical distance between the blocking member and the nozzle outlet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

8. The arrangement method according to claim 6, characterized in that, The distance L2 between the first nozzle on the deflection side and the edge of the billet satisfies: ； Wherein, L2 represents the distance from the first nozzle along the deflection side to the edge of the billet, in mm; H2 represents the spraying distance from the nozzle to the billet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

9. The arrangement method according to claim 6, characterized in that, The distance L3 from the edge of the billet to the last nozzle along the deflection side satisfies: ； Wherein, L3 represents the distance from the last nozzle along the deflection side to the edge of the billet, in mm; H2 represents the spraying distance of the nozzle from the billet, in mm; θ represents the deflection angle of the nozzle, in °; and α represents the spray angle of the nozzle, in °.

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