High-pressure water purging header for EPS (Expandable Polystyrene) surface treatment production line

Abstract

The utility model discloses a high-pressure water purging header for an EPS (Expandable Polystyrene) surface treatment production line, which comprises a main pipe arranged in an EPS surface treatment unit, the nozzle modules are used for uniformly blowing and spraying the surface of a blank, the mounting modules are used for locking and mounting the nozzle modules, the shaft body module is used for providing mounting for the main pipe, the nozzle modules and the mounting modules are uniformly arranged on one side of the main pipe at intervals, and the shaft body module is used for providing mounting for the main pipe. The multi-nozzle blowing device has the advantages that the uniformity of the hitting force level, namely the blowing force level, formed in the vertical direction is guaranteed as much as possible, the mounting modules are made of 1Cr12 stainless steel, the surfaces of the mounting modules are subjected to quenching treatment, and the service life of the mounting modules is prolonged. The wear resistance of the mounting module in the blowing process is guaranteed, and the uniformity of the forward inclination angle of the nozzle can be guaranteed due to the arrangement of a positioning index plate structure with a graduated scale.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-rolled coil surface treatment, in particular to a high-pressure water purging header for an EPS surface treatment production line. Background Art

[0002] In the existing technology, the method of hot-rolled coil surface treatment is mainly based on pickling technology. However, pickling is very harmful to personnel, equipment and the environment, and the cost of production operation and maintenance is high. Therefore, a new technology and process to replace pickling has been developed. Many technical researches and attempts have been made in the industry. EPS surface treatment line is an advanced, mature and formally applied technology. The treatment line adopts the latest hot-rolled steel coil (plate) surface treatment technology. The main function of the EPS unit is to cut the head and tail, straighten, pickle-free wet steel shot blasting and drying of the hot-rolled raw steel coil, and The stable tension and EPC deviation correction function enable the treated strip to be rewound. The basic principle is that the working medium, i.e., a mixture of hard steel sand and water, is sprayed on the upper and lower surfaces of the steel plate. Under the action of the impact force, the iron oxide on the surface of the steel plate is removed, making the steel plate smooth and clean. EPS can avoid pre-treatment processes such as pickling, shot blasting, and painting, and realize green and clean production. In the surface treatment unit, the surface of the steel plate after sandblasting needs to be purged. In this process, the currently used low-pressure purge header is difficult to meet the process requirements. The schematic diagram of the high-pressure purge header structure in the prior art is shown in the figure below. Figure 1 shown.

[0003] Analyzing the above manifold arrangement, it can be known that: 1) All nozzles are symmetrically distributed, the deflection angles of the nozzles on both sides are 60 degrees to the left and 60 degrees to the right respectively, the spraying directions of the nozzles on both sides are mirror-symmetrical, the spacing between the two middle nozzles is half of the spacing between the nozzles on both sides, and the angles between the nozzles and the axis are 30 degrees to the left and 30 degrees to the right respectively. In actual production, such a nozzle arrangement often results in a large difference between the spraying area of ​​the edge nozzles and the spraying area of ​​the two middle nozzles, resulting in uneven impact force of the nozzles; 2) In terms of nozzle arrangement, the spacing between adjacent nozzles is not the same, resulting in the failure to consider the uniformity of water superposition when the nozzles are spraying, resulting in the failure to achieve uniform spraying on the billet surface; 3) Each nozzle does not form a uniform impact force distribution when spraying the billet surface.

[0004] In summary, using such a nozzle arrangement will lead to uneven water distribution between the nozzles, resulting in uneven impact force formed by the nozzles, and then uneven blowing force formed on the surface of the billet, which makes it difficult to meet the production process requirements for uniform blowing force on the surface of the billet. Utility Model Content

[0005] The utility model aims to provide a high-pressure water blowing header for an EPS surface treatment production line.

[0006] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0007] A high-pressure water blowing manifold for an EPS surface treatment production line comprises a main pipe, which is arranged in an EPS surface treatment unit, and further comprises a nozzle module for evenly blowing and spraying the surface of a blank, a mounting module for locking and mounting the nozzle module, and an axis module for providing installation for the main pipe. The nozzle modules and the mounting modules are provided with a plurality of groups, the plurality of groups of nozzle modules are evenly spaced and arranged on one side of the main pipe, the plurality of groups of mounting modules are respectively arranged at the ends of the plurality of groups of nozzle modules, and the axis module is assembled at the end of the main pipe.

[0008] The nozzle module includes a nozzle seat and a nozzle, the nozzle seat is arranged at one side of the main pipe and fixedly connected to the main pipe, the interior of the nozzle seat is set as a hollow structure and the main pipe is provided with a connecting hole corresponding to the nozzle seat, the nozzle seat is connected with the interior of the main pipe through the connecting hole, the nozzle head is arranged at one end of the nozzle seat away from the main pipe and fixedly connected to the nozzle seat, one end of the nozzle head protrudes from the nozzle seat, the interior of the nozzle head is set as a hollow structure and connected with the interior of the nozzle seat.

[0009] It also includes an injection core, which is arranged inside the end of the nozzle protruding from the nozzle seat and is embedded and connected to the nozzle seat. The interior of the injection core is arranged as a hollow structure and is connected to the interior of the nozzle seat. The end of the injection core close to the main pipe is provided with a conical through hole structure.

[0010] An injection port is provided at one end of the injection core protruding from the nozzle seat close to the nozzle, and the injection port is arranged in a dovetail structure and communicated with the interior of the injection core.

[0011] The mounting module includes a mounting nut and an injection guide block, wherein the mounting nut is arranged on the outer side of one end of the nozzle protruding from the nozzle seat and is threadedly connected to the nozzle seat, the mounting nut is sleeved on the outer side of one end of the nozzle protruding from the nozzle seat and the lower surface of the mounting nut is flush with the lower surface of the nozzle, and the injection guide blocks are provided in two groups, the two groups of injection guide blocks are symmetrically arranged on the inner side of one end of the nozzle away from the nozzle seat and are fixedly connected to the nozzle, and a spacing is left between the two groups of injection guide blocks.

[0012] A stepped through hole structure is provided inside the mounting nut, the inner diameter of the mounting nut at one end away from the nozzle seat is smaller than the inner diameter of the end close to the nozzle seat, the injection guide block is arranged as an arc-shaped guide block structure and the spacing between the two groups of the injection guide blocks is arranged corresponding to the injection port on the nozzle.

[0013] The mounting nut is made of quenched 1Cr12 stainless steel.

[0014] A mounting flange is provided on the outer side of one end of the nozzle protruding from the nozzle seat, and the mounting flange is located on the inner side of the stepped through hole structure of the mounting nut and between the nozzle seat and the mounting nut.

[0015] The shaft module comprises an end shaft and a sealing shaft. The end shaft is arranged at one end of the main pipe and fixedly connected to the main pipe. The sealing shaft is arranged at one end of the main pipe away from the end shaft and fixedly connected to the main pipe.

[0016] The end shaft, the sealing shaft and the main pipe are all coaxially arranged and together constitute a cleaning pipe structure. The cleaning pipe structure is arranged in the EPS surface treatment unit through a positioning dividing plate and a scale is configured on the positioning dividing plate.

[0017] The beneficial effects of the utility model are:

[0018] The uniformity of the striking force level formed in the vertical direction, i.e., the level of blowing force, is ensured as much as possible, and the uneven striking force level caused by the spraying position of the descaling nozzle not being perpendicular to the surface of the blank is avoided. The spacing between two adjacent nozzles is kept uniform, and the water distribution during nozzle spraying is ensured to be uniform, so that the spray watermarks of two adjacent nozzles or nozzles in the same row overlap without interference, and the uneven water distribution, i.e., the blowing force, caused by the different spacing between two adjacent low-pressure nozzles is avoided. The material of the mounting module is optimized, and 1Cr12 stainless steel is used with a quenching treatment on the surface to ensure the wear resistance of the mounting module during the blowing process, avoid the non-wear resistance of the fastening nut caused by the poor material of the mounting module, and increase its service life. In addition, a positioning dividing plate structure with a scale is configured to adjust the forward inclination angle of the nozzle to ensure the uniformity of the forward inclination angle of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the high-pressure purge header structure in the prior art;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the nozzle module and the main pipe of the utility model;

[0022] Figure 4 This is a half-section diagram of the cooperation state of the nozzle and the injection core of the utility model;

[0023] Figure 5 This is a schematic diagram of the cooperation between the injection guide block and the nozzle of the utility model;

[0024] Figure 6 This is a half-section view of the installation nut of the utility model;

[0025] Figure 7 This is a schematic diagram of the cooperation between the shaft module and the main pipe of the utility model;

[0026] Figure 8 This is a nozzle arrangement scheme for the upper purge header in an embodiment of the utility model.

[0027] In the figure: 1. Main pipe; 2. Nozzle seat; 3. Nozzle; 4. Injection core; 5. Mounting nut; 6. Injection guide block; 7. End shaft; 8. Sealing shaft. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] A high-pressure water purging manifold for an EPS surface treatment production line comprises a main pipe 1, which is arranged in an EPS surface treatment unit, and further comprises a nozzle module for uniformly purging and spraying the surface of a blank, a mounting module for locking and mounting the nozzle module, and a shaft module for providing installation for the main pipe 1. The nozzle module and the mounting module are provided with a plurality of groups, and the plurality of groups of nozzle modules are evenly spaced and arranged on one side of the main pipe 1, and the plurality of groups of mounting modules are respectively arranged at the ends of the plurality of groups of nozzle modules, and the shaft module is assembled at the end of the main pipe 1. The overall structural schematic diagram of the utility model is as shown in FIG. Figure 2 shown.

[0030] The nozzle module includes a nozzle seat 2 and a nozzle 3. The nozzle seat 2 is arranged on one side of the main pipe 1 and is fixedly connected to the main pipe 1. The interior of the nozzle seat 2 is set as a hollow structure and the main pipe 1 is provided with a connecting hole corresponding to the nozzle seat 2. The nozzle seat 2 is connected with the interior of the main pipe 1 through the connecting hole. The nozzle head 3 is arranged at one end of the nozzle seat 2 away from the main pipe 1 and is fixedly connected to the nozzle seat 2. One end of the nozzle head 3 protrudes from the nozzle seat 2. The interior of the nozzle head 3 is set as a hollow structure and is connected with the interior of the nozzle seat 2. The nozzle module cooperates with the nozzle seat 2 and the nozzle head 3 to form a uniform wide flow nozzle structure, wherein the nozzle seat 2 is used to provide installation support for the nozzle head 3, and the nozzle head 3 is used to ensure the uniformity of the striking force level formed by the nozzle module in the vertical direction, that is, the level of the blowing force. Several groups of nozzle modules are evenly spaced to ensure that the water volume distribution during nozzle spraying is uniform, and the spray watermarks of two adjacent nozzles or the same row of nozzles are superimposed without interference. The cross-sectional view of the nozzle module and the main pipe 1 of the utility model is shown in Figure 3 shown.

[0031] It also includes an injection core 4, which is arranged inside the end of the nozzle 3 protruding from the nozzle seat 2 and is embedded and connected to the nozzle seat 2. The interior of the injection core 4 is set as a hollow structure and is connected to the interior of the nozzle seat 2. The end of the injection core 4 close to the main pipe 1 is provided with a conical through-hole structure, and the end of the injection core 4 close to the nozzle 3 protruding from the nozzle seat 2 is provided with an injection port, which is set as a dovetail structure and is connected to the interior of the injection core 4. The injection core 4 is used to form a high-pressure descaling nozzle structure together with the nozzle 3. The injection port of the dovetail fan-shaped structure can ensure the uniformity of the injection while achieving wide flow injection. The half-section diagram of the nozzle 3 and the injection core 4 in the cooperation state of the utility model is as follows Figure 4 shown.

[0032] The mounting module includes a mounting nut 5 and an injection guide block 6. The mounting nut 5 is arranged on the outside of one end of the nozzle head 3 protruding from the nozzle seat 2 and is threadedly connected to the nozzle seat 2. The mounting nut 5 is sleeved on the outside of one end of the nozzle head 3 protruding from the nozzle seat 2 and the lower surface of the mounting nut 5 is arranged flush with the lower surface of the nozzle head 3. There are two groups of injection guide blocks 6. The two groups of injection guide blocks 6 are symmetrically arranged on the inner side of one end of the nozzle head 3 away from the nozzle seat 2 and are fixedly connected to the nozzle head 3. A spacing is left between the two groups of injection guide blocks 6. The mounting module cooperates with the mounting nut 5 and the injection guide block 6 to realize the installation connection between the nozzle head 3 and the nozzle seat 2, wherein the mounting nut 5 is used to realize the installation connection between the nozzle head 3 and the nozzle seat 2, and the injection guide block 6 is used as a spray guide structure on the nozzle head 3 to cooperate with the injection port to realize the wide flow injection of the nozzle. The schematic diagram of the cooperation between the injection guide block 6 and the nozzle head 3 of the utility model is shown in Figure 5 shown.

[0033] A stepped through-hole structure is provided inside the mounting nut 5, and the inner diameter of the end of the mounting nut 5 away from the nozzle seat 2 is smaller than the inner diameter of the end close to the nozzle seat 2, the injection guide block 6 is arranged as an arc-shaped guide block structure, and the spacing between the two groups of injection guide blocks 6 is arranged corresponding to the injection port on the nozzle 3, and the mounting nuts 5 are made of quenched 1Cr12 stainless steel. A mounting convex edge is provided on the outer side of the end of the nozzle 3 protruding from the nozzle seat 2, and the mounting convex edge is located on the inner side of the stepped through-hole structure of the mounting nut 5 and between the nozzle seat 2 and the mounting nut 5, wherein the stepped through-hole structure is used as a mounting structure inside the mounting nut 5 to meet the installation requirements of the nozzle seat 2 and the nozzle 3, and the mounting nut 5 made of quenched 1Cr12 stainless steel can ensure its wear resistance. A half-section diagram of the mounting nut 5 of the utility model is shown as follows Figure 6 shown.

[0034] The shaft module includes an end shaft 7 and a sealing shaft 8. The end shaft 7 is arranged at one end of the main pipe 1 and is fixedly connected to the main pipe 1. The sealing shaft 8 is arranged at an end of the main pipe 1 away from the end shaft 7 and is fixedly connected to the main pipe 1. The end shaft 7, the sealing shaft 8 and the main pipe 1 are coaxially arranged and together constitute a cleaning pipe structure. The cleaning pipe structure is arranged in the EPS surface treatment unit through a positioning indexing plate and a scale is provided on the positioning indexing plate. The shaft module cooperates with the end shaft 7 and the sealing shaft 8 to constitute a mounting structure at the end of the main pipe 1, wherein the end shaft 7 and the sealing shaft 8 are respectively used as mounting structures at both ends of the main pipe 1 to meet the installation requirements of the main pipe 1. The installation angle of the main pipe 1 can be adjusted by the positioning indexing plate with a scale to adjust the forward tilt angle of the nozzle, which can ensure the uniformity of the forward tilt angle of the nozzle after adjustment. The schematic diagram of the cooperation between the shaft module and the main pipe 1 of the utility model is shown in Figure 7 shown.

[0035] Example:

[0036] Upper purge header:

[0037] 22 nozzles are installed on the header, the distance between two adjacent nozzles is 84mm, the angle between the nozzle and the axis of the header, i.e., its deflection angle, is 15 degrees, the flow rate of the entire header is 700L / min at 50bar pressure, the flow rate at 12bar pressure is 342L / min, and the total flow rate of the four headers is 1368L / min at 12bar pressure, which meets the flow rate requirement of 440gmp, i.e., 1663.2L / min, at a pump pressure of 12bar. The arrangement scheme of the nozzles of the upper purge header in the embodiment of the utility model is as follows: Figure 8 shown.

[0038] Working principle:

[0039] The nozzle module and the installation module are evenly arranged on the main pipe 1, and the end shafts 7 and the sealing shaft 8 at both ends of the main pipe 1 are arranged in the EPS surface treatment unit through the positioning indexing plate. The installation angle of the main pipe 1 is adjusted through the positioning indexing plate to adjust the forward tilt angle of the nozzle, so as to ensure the uniformity of the forward tilt angle of the nozzle after adjustment. Considering the blowing of the nozzle in the vertical direction on the surface of the blank, the uniformity of the impact force level formed in the vertical direction, that is, the blowing force level, is ensured as much as possible. The nozzle arrangement method of the existing low-pressure water blowing manifold is changed, and the spacing between two adjacent nozzles of the manifold is adjusted from the original uneven spacing to a uniform spacing to ensure that the water volume distribution during nozzle spraying is uniform, and the spray watermarks of two adjacent nozzles or nozzles in the same row overlap without interference. The material of the nozzle installation nut 5 on the manifold is optimized, and 1Cr12 stainless steel is used, and the surface is quenched to ensure the wear resistance of the nozzle nut during the blowing process. The existing adjustment method of the manifold is changed, and the forward tilt angle of the nozzle is adjusted by using a positioning indexing plate with a scale to ensure the uniformity of the forward tilt angle of the nozzle after adjustment.

[0040] The beneficial effects of the utility model are to ensure the uniformity of the impact force level formed in the vertical direction, that is, the blowing force level, as much as possible, avoid the uneven impact force level caused by the spraying position of the descaling nozzle not being perpendicular to the surface of the blank, keep the spacing between two adjacent nozzles uniform, ensure the uniform water distribution when the nozzle sprays, make the spray watermarks of two adjacent nozzles or the same row of nozzles overlap without interference, avoid the uneven water distribution, that is, the blowing force, caused by the different spacing between two adjacent low-pressure nozzles, optimize the material of the installation module, use 1Cr12 stainless steel material and quench the surface, ensure the wear resistance of the installation module during the blowing process, avoid the fastening nut being not wear-resistant due to the poor material of the installation module, and increase its service life, and is equipped with a positioning dividing plate structure with a scale to adjust the forward tilt angle of the nozzle to ensure the uniformity of the forward tilt angle of the nozzle.

[0041] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A high-pressure water blowing manifold for an EPS surface treatment production line, comprising a main pipe (1), wherein the main pipe (1) is arranged in an EPS surface treatment unit, and is characterized in that: It also includes a nozzle module for evenly blowing and spraying the surface of the blank, a mounting module for locking and installing the nozzle module, and an axis module for providing installation for the main pipe (1). The nozzle modules and the mounting modules are provided in a plurality of groups. The plurality of groups of nozzle modules are evenly spaced and arranged on one side of the main pipe (1). The plurality of groups of mounting modules are respectively arranged at the ends of the plurality of groups of nozzle modules. The axis module is assembled at the end of the main pipe (1).

2. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 1, characterized in that: The nozzle module comprises a nozzle seat (2) and a nozzle (3); the nozzle seat (2) is arranged on one side of the main pipe (1) and is fixedly connected to the main pipe (1); the interior of the nozzle seat (2) is arranged as a hollow structure and the main pipe (1) is provided with a connecting hole corresponding to the nozzle seat (2); the nozzle seat (2) is connected to the interior of the main pipe (1) through the connecting hole; the nozzle head (3) is arranged at one end of the nozzle seat (2) away from the main pipe (1) and is fixedly connected to the nozzle seat (2); one end of the nozzle head (3) protrudes from the nozzle seat (2); the interior of the nozzle head (3) is arranged as a hollow structure and is connected to the interior of the nozzle seat (2).

3. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 2, characterized in that: It also comprises an injection core (4), which is arranged inside one end of the nozzle (3) protruding from the nozzle seat (2) and is embedded and connected to the nozzle seat (2), the interior of the injection core (4) is arranged as a hollow structure and is connected to the interior of the nozzle seat (2), and the injection core (4) is provided with a conical through-hole structure at one end close to the main pipe (1).

4. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 3, characterized in that: An injection port is provided at one end of the injection core (4) protruding from the nozzle seat (2) close to the nozzle head (3); the injection port is arranged in a dovetail structure and is communicated with the interior of the injection core (4).

5. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 4, characterized in that: The mounting module comprises a mounting nut (5) and an injection guide block (6); the mounting nut (5) is arranged on the outer side of one end of the nozzle head (3) protruding from the nozzle seat (2) and is threadedly connected to the nozzle seat (2); the mounting nut (5) is sleeved on the outer side of one end of the nozzle head (3) protruding from the nozzle seat (2) and the lower surface of the mounting nut (5) is arranged flush with the lower surface of the nozzle head (3); the injection guide block (6) is provided with two groups, the two groups of the injection guide blocks (6) are symmetrically arranged on the inner side of one end of the nozzle head (3) away from the nozzle seat (2) and are fixedly connected to the nozzle head (3); and a spacing is left between the two groups of the injection guide blocks (6).

6. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 5, characterized in that: The interior of the mounting nut (5) is provided with a stepped through hole structure, the inner diameter of the end of the mounting nut (5) away from the nozzle seat (2) is smaller than the inner diameter of the end close to the nozzle seat (2), the injection guide block (6) is arranged as an arc-shaped guide block structure, and the spacing between the two groups of the injection guide blocks (6) is arranged corresponding to the injection port on the nozzle head (3).

7. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 6, characterized in that: The mounting nut (5) is made of quenched 1Cr12 stainless steel.

8. A high-pressure water blowing header for an EPS surface treatment production line as claimed in claim 7, characterized in that: A mounting flange is provided on the outer side of one end of the nozzle head (3) protruding from the nozzle seat (2); the mounting flange is located inside the stepped through-hole structure of the mounting nut (5) and between the nozzle seat (2) and the mounting nut (5).

9. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 8, characterized in that: The shaft module comprises an end shaft (7) and a sealing shaft (8), wherein the end shaft (7) is arranged at one end of the main pipe (1) and is fixedly connected to the main pipe (1), and the sealing shaft (8) is arranged at one end of the main pipe (1) away from the end shaft (7) and is fixedly connected to the main pipe (1).

10. A high-pressure water purging header for an EPS surface treatment production line as claimed in claim 9, characterized in that: The end shaft (7), the sealing shaft (8) and the main pipe (1) are all coaxially arranged and together constitute a cleaning pipe structure. The cleaning pipe structure is arranged in the EPS surface treatment unit through a positioning indexing plate and a scale is arranged on the positioning indexing plate.

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