WO2022052844A1

WO2022052844A1 - Wire derusting spray head

Info

Publication number: WO2022052844A1
Application number: PCT/CN2021/115920
Authority: WO
Inventors: 戴杰涛; 陈晓生; 陈震林
Original assignee: 广州大学
Priority date: 2020-09-09
Filing date: 2021-09-01
Publication date: 2022-03-17
Also published as: LU502016B1; CN112238398B; CN112238398A; LU502016A1

Abstract

A wire derusting spray head, comprising a spray head body, a high-pressure water spraying device and a sand feeding structure. A first mixing cavity (1) is provided within the spray head body. A wire feeding channel (6) is provided at one end of the first mixing cavity (1), and a wire discharging channel (7) is provided at the other end thereof; the diameter of the wire feeding channel (6) is larger than that of a wire, and an annular second mixing cavity is formed between an outer side of the wire and an inner wall of the wire feeding channel. The sand feeding structure comprises a sand feeding hole (17) that communicates with the first mixing cavity (1). The high-pressure water spraying device comprises a nozzle holder provided within the spray head body, and multiple water spraying holes (3) distributed in the circumferential direction are provided on the nozzle holder. One end of each water spraying hole (3) communicates with the first mixing cavity (1), and the other end thereof communicates with an annular water intake groove (8), and the annular water intake groove (8) communicates with a water intake pipe. The wire derusting spray head may thoroughly remove surface oxide skin from wire surfaces, is highly efficient, and convenient to operate.

Description

A wire rod derusting nozzle

technical field

The invention relates to wire rod production equipment, in particular to a wire rod derusting nozzle.

Background technique

During the production of hot-rolled steel, the steel ingot is heated to more than 1,000 degrees, and the high-temperature steel ingot comes into contact with the air, and an oxidation reaction occurs, and a layer of iron oxide scale is formed on the surface of the steel. The iron oxide scale will weaken the corrosion resistance, weldability and mechanical properties of the finished steel, affecting the quality of the steel.

In order to solve the above problems, the utility model patent with the authorized publication number CN 2425723Y discloses an abrasive high-pressure water phosphorus removal nozzle, which is composed of a high-pressure water water supply device and a sandblasting device, and is characterized in that the high-pressure water water supply device and the sandblasting device are assembled. In the round sleeve, the high-pressure water supply device includes a high-pressure hose, a connecting nut, a connecting head, an intermediate pipe, a rectifier, a plug, a flat fan-shaped water nozzle, and the sandblasting device includes a transparent hose, a connecting pipe, a sandblasting plate, and an adjustment piece Group, compressed air nozzle; the high-pressure hose is connected to the joint with a connecting nut, the connecting head is tightly screwed on the intermediate pipe, a rectifier is installed inside the intermediate pipe, the head is screwed on the intermediate pipe, and the flat fan-shaped water nozzle is placed on the In the nozzle sleeve, the flat fan-shaped water nozzle is fixed by the plug, the nozzle sleeve and the plug are connected by screwing, and the round sleeve and the nozzle sleeve are connected with fixing screws; the transparent hose is tightly sleeved on the two pipes, and the connecting pipes are tightly connected. Screw in the sandblasting plate, the sandblasting plate is fixed by bolts and nozzle sleeves, and a compressed air nozzle and an adjustment plate group are installed in the middle of the sandblasting. In the above nozzles, high-pressure water spray and sandblasting are respectively output from the high-pressure water supply device and sandblasting device and mixed outside the water nozzle. Flat fan-shaped high-pressure mortar is used to hit the steel surface outside the nozzle to remove the iron oxide scale. However, the above nozzles still have the following shortcomings:

1. The nozzle mixes high-pressure water and sandblasting and then sprays it on the steel surface outside the nozzle. It can only have a rust removal effect on the surface of the wire that faces the nozzle mouth. It needs to be rusted on the surface in other directions. Then, the nozzle needs to be moved to the top of the corresponding surface, which increases the workload and leads to low efficiency.

2. The nozzle mixes high-pressure water and sandblasting, and then sprays it on the steel surface outside the nozzle. Along the length of the line pipe, the area of rust removal is only the contact surface between the mixed liquid and the wire, and the area of rust removal per unit time is small. , the rust removal efficiency is low.

SUMMARY OF THE INVENTION

The object of the present invention is to overcome the deficiencies of the prior art, and to provide a wire rod rust removal nozzle, on the one hand, this wire rod rust removal nozzle can completely remove the iron oxide scale on the entire circumferential surface of the wire rod, and the rust removal quality is good; on the other hand, The wire rod rust removal nozzle has a larger rust removal range per unit time, high efficiency and convenient operation.

The technical scheme that the present invention solves the above-mentioned technical problems is:

A wire rod derusting nozzle is characterized in that it includes a nozzle body, a high-pressure water spray device and a sand feeding structure; wherein, the nozzle body is provided with a first mixing chamber; the sand feeding structure includes a communication with the first mixing chamber. The high-pressure water spray device includes a nozzle seat arranged in the nozzle body, the nozzle seat is provided with a plurality of water spray holes distributed along the circumferential direction, and one end of the water spray holes is communicated with the first mixing chamber , the other end is communicated with the annular water inlet groove, and the annular water inlet groove is communicated with the water inlet pipe; one end of the first mixing chamber is provided with an inlet channel with an outer diameter smaller than the outer diameter of the mixing chamber, and the other end is provided with an outlet channel, wherein, The diameter of the wire inlet channel is larger than the diameter of the wire rod, and an annular second mixing cavity is formed between the outer side of the wire rod and the inner wall of the wire inlet channel; the diameter of the wire outlet channel matches the wire rod.

The working principle of the above wire derusting nozzle is:

The wire rod whose surface scale needs to be removed is derusted inside the wire rod derusting nozzle, as follows: the wire rod enters the first mixing chamber from the wire inlet channel, and passes through the first mixing chamber from the wire outlet channel; after the wire rod enters the wire inlet channel, the high pressure The water spray device and the sand feeding structure are activated, and the high-pressure water flow enters the annular water inlet tank from the water inlet pipe; one end of the water spray hole is connected with the annular water inlet tank, and the other end is connected with the first mixing chamber. The water spray hole enters the first mixing chamber, and at the same time, the sandblasting enters the first mixing chamber from the sand inlet hole, and the high-pressure water flow drives the sandblasting movement to form a high-speed moving mixed liquid, and the high-speed mixed liquid is discharged from the second mixing chamber. On the one hand, since the second mixing chamber is composed of the outer side of the wire and the inner wall of the wire inlet channel, and the outer diameter of the wire inlet channel is smaller than the outer diameter of the first mixing chamber, the cross section of the second mixing chamber is much smaller than that of the first mixing chamber, Therefore, the mixed liquid in the second mixing chamber flows faster; on the other hand, the flow direction of the mixed liquid is opposite to the advancing direction of the line pipe, which further increases the relative speed of the two, thereby forming extremely fast mixing in the second mixing chamber The high-speed mixed liquid scours the entire circumferential surface of the wire entering the wire inlet channel, thereby removing the iron oxide scale on the circumferential surface of the entire wire; after the wire enters the first mixing chamber, the high-speed mixed liquid formed by sandblasting is driven by the high-pressure water flow Further scour the surface of the wire, because there are multiple water spray holes, and the multiple water spray holes are distributed along the circumferential direction, so the entire circumferential surface of the wire is filled with high-speed mixed liquid, so that the iron oxide scale on the entire surface of the wire can be completely removed. The above process The rust removal effect on the entire circumferential surface of the wire can be achieved without moving the position of the nozzle back and forth, with good rust removal quality and high efficiency; The mixture removes rust on the entire circumferential surface of the wire rod, so that the rust removal range per unit time is larger and the rust removal efficiency is high.

In a preferred solution of the present invention, the spray head body includes a spray head front part and a spray head rear part for installing the high-pressure water spray device, and the rear part of the spray head body is provided with a liquid inlet communicated with the first mixing chamber The pore size of the liquid inlet cavity is larger than the pore size of the first mixing cavity. By arranging the sprinkler body of the structure, the high-pressure water sprinkler is arranged at the rear of the sprinkler, and each functional module has a reasonable layout, compact structure and powerful functions.

In a preferred solution of the present invention, the nozzle holder includes a front part of the nozzle holder and a rear part of the nozzle holder, and the outer diameter of the front part of the nozzle holder is larger than the outer diameter of the rear part of the nozzle holder, so that the front part of the nozzle holder and the rear part of the nozzle holder are located between the front part of the nozzle holder and the rear part of the nozzle holder. A first step is formed between the parts, and the first step is provided with a chamfered surface toward the rear of the nozzle seat; the rear of the nozzle seat is provided with a wire hole matching the wire, and the wire hole constitutes a In the outlet channel, the front part of the nozzle seat is provided with a first conical hole communicating with the outlet channel, the first conical hole is communicated with the first mixing chamber and the aperture gradually increases toward the first mixing chamber, The water spray hole passes through the chamfered surface and the inner wall of the first tapered hole. With the nozzle seat of the structure, the high-pressure water flow enters the chamfered surface and passes through the inner wall of the first conical surface. Since the first conical hole is communicated with the first mixing chamber, the high-pressure water flowing through the first conical surface can It is directly sprayed on the surface of the wire rod in the first mixing chamber, and can drive the sandblasting in the first mixing chamber to rush to the surface of the wire rod at a high speed, thereby removing the iron oxide scale on the surface of the wire rod.

In a preferred solution of the present invention, the high-pressure water spraying device further comprises a pressing structure, a water inlet hole, a water inlet joint disposed outside the water inlet hole, a sealing sleeve and a ruby nozzle installed in the sealing sleeve; the The pressing structure is arranged in the liquid inlet chamber, one end of the pressing structure is pressed against the first step, and the end face of the pressing structure close to the first mixing chamber, the chamfered surface and the liquid inlet chamber The inner wall constitutes the annular water inlet groove, and the water inlet hole communicates with the annular water inlet groove; the sealing sleeve is installed on the side of the water spray hole close to the chamfered surface. By setting the above-mentioned high-pressure water spray device, the water inlet pipe is connected with the water inlet joint, the high-pressure water flow enters the annular water inlet tank through the water inlet hole, and the high-pressure water flow in the annular water inlet tank enters the water spray hole through the ruby nozzle, and is sprayed into the first mixing chamber. on the inner wire surface.

Preferably, the compression structure includes a compression sleeve and a locking compression cap, the outer diameter of the compression sleeve matches the inner diameter of the liquid inlet cavity, and both the compression sleeve and the locking compression cap are There is an internal hole matching the rear of the nozzle seat, the pressing sleeve is sleeved on the rear of the nozzle, and one end is pressed against the first step; the locking pressing cap is connected to the liquid inlet chamber It is connected by screw thread, and one end is pressed against the pressing sleeve. When assembling, set the pressing sleeve on the back of the nozzle holder, then assemble the nozzle holder to the liquid inlet chamber, and lock the locking pressure cap. The locking pressure cap presses one end of the pressing sleeve forward. Push forward, and the other end of the compression sleeve is pressed against the first step until the front of the nozzle seat is against the rear end of the first mixing chamber. At this time, the compression cap is locked to fix the compression sleeve and the nozzle seat on the wire to remove rust The front of the sprinkler head, complete the installation.

Preferably, the sealing sleeve is made of copper material. Using copper as the material of the sealing sleeve, on the one hand, due to the low hardness of copper, it is easy to install during assembly; on the other hand, the copper material will not rust even if it is exposed to water for a long time, and is more stable and durable.

In a preferred solution of the present invention, the high-pressure water spray device further includes a waterproof structure, and the waterproof structure includes a waterproof groove and a waterproof gasket installed on the waterproof groove; wherein, the waterproof groove includes a waterproof groove arranged on the pressing sleeve. A first waterproof groove, a second waterproof groove arranged at the rear of the nozzle holder, and a third waterproof groove arranged at the front of the nozzle holder. By arranging the above waterproof structure, the first waterproof groove is arranged on the pressing sleeve to prevent the high-pressure water flow from flowing out of the back of the wire rod rust removal nozzle from the liquid inlet chamber, and the second waterproof groove is arranged at the rear of the nozzle seat to prevent the high-pressure water flow from pressing The inner wall of the sleeve flows out of the rear of the wire rod derusting nozzle, and the third waterproof groove is arranged in the front of the nozzle seat to prevent the high-pressure water flow from entering the first mixing chamber from the junction of the liquid inlet chamber and the first mixing chamber; The waterproof structure can ensure that the high-pressure water flow can only enter the first mixing chamber from the water spray hole, so as to be sprayed onto the surface of the wire material in the first mixing chamber, thereby improving the rust removal effect.

A preferred solution of the present invention further includes a mixing nozzle structure, the mixing nozzle structure includes a mixing nozzle and a nozzle pressure cap for installing the mixing nozzle on the front of the nozzle; the mixing nozzle includes a front of the nozzle and a rear of the nozzle. The outer diameter of the front part of the nozzle is smaller than the outer diameter of the rear part of the nozzle, so that a second step is formed between the front part of the nozzle and the rear part of the nozzle; the wire inlet hole is arranged in the front part of the nozzle; the The rear of the nozzle is provided with a second conical hole that communicates with the wire inlet hole, the second conical hole is communicated with the first mixing chamber, and the diameter of the second conical hole gradually increases toward the first mixing chamber. With the mixing nozzle of the above structure, when the high-pressure water flow and the mixed liquid of sandblasting flow from the first mixing chamber through the inlet hole, the fluid cross-section of the mixed liquid becomes sharply smaller, and the inner wall of the second conical hole has a surface for the mixed liquid. In this way, the mixed liquid recoiled through the inner wall of the second conical hole scours the entire circumferential surface of the wire again, thereby enhancing the effect of removing iron oxide scale on the surface of the wire.

Preferably, the nozzle pressing cap includes a locking portion and a crimping portion, the locking portion is provided with a locking hole matched with the rear portion of the nozzle, and the crimping portion is provided with a locking hole matched with the front portion of the nozzle The withholding hole, the locking part is threadedly connected with the liquid outlet chamber. When installing the mixing nozzle device, first fit the nozzle cap on the mixing nozzle, press the withholding hole against the second step, and then fit the locking part with the liquid outlet chamber, and tighten it in the direction of the first mixing chamber Tighten the lock and push the mixing nozzle to the position of the first mixing chamber until the rear of the mixing nozzle abuts the front end of the first mixing chamber. At this time, the locking part is locked with the liquid outlet chamber, so that the mixing nozzle is installed on the wire to remove rust. on the sprinkler.

In a preferred solution of the present invention, there are two sand inlet holes, and the two sand inlet holes are symmetrically arranged on the nozzle body. Two symmetrical sand inlet holes are set, and the sand blasting enters the first mixing chamber from both sides of the nozzle body at the same time, so that the sand blasting distribution in the first mixing chamber is more uniform, and the entire circumferential surface of the wire is filled with sand blasting, thereby improving Rust removal effect.

In a preferred solution of the present invention, the sand feeding structure further includes a sand feeding joint, and the sand feeding joint is installed at the outer end of the sand feeding hole. By arranging the above-mentioned sand feeding structure, quick installation and disassembly of the sand feeding pipeline and the wire rod rust removing nozzle can be realized, which is convenient for maintenance.

Compared with the prior art, the present invention has the following beneficial effects:

1. The wire rod derusting nozzle of the present invention includes a nozzle body, a high-pressure water spray device and a sand feeding structure. A first mixing chamber is provided in the nozzle body, and one end of the first mixing chamber is provided with a wire outlet channel, which is connected to the outside of the wire rod and the inlet. An annular second mixing chamber is formed between the inner walls of the line channels, and the cross-section of the second mixing chamber is much smaller than that of the first mixing chamber, so that the high-speed mixed liquid from the first mixing chamber has a higher flow in the second mixing chamber In addition, since the flow direction of the mixed liquid is opposite to the direction in which the wire rod enters the rust removal nozzle, the relative speed of the two is further increased, and an extremely high-speed mixed liquid is formed in the second mixing chamber, so as to completely remove the rust on the entire circumferential surface of the wire rod. Good rust quality and high efficiency.

2. The wire rod rust removal nozzle of the present invention includes a nozzle body, a high-pressure water spray device and a sand feeding structure. A first mixing chamber is arranged in the nozzle body. After the wire rod enters the first mixing chamber of the rust removal nozzle from the wire inlet channel, The high-speed mixed liquid formed by sandblasting is driven by the high-pressure water flow to further wash the surface of the wire rod. Since there are multiple water spray holes and the plurality of water spray holes are distributed in the circumferential direction, the entire circumferential surface of the wire rod is filled with the high-speed mixed liquid, which can be completely removed. Iron oxide scale on the entire circumference of the wire.

3. In the wire rod derusting nozzle of the present invention, in the process of the wire rod entering the derusting nozzle, in both the first mixing chamber and the second mixing chamber, the mixed liquid derusts the entire circumferential surface of the wire rod, so that the unit time The rust removal range is larger and the rust removal efficiency is high.

4. The wire rod derusting nozzle of the present invention integrates the functions of high-pressure water spraying, sand feeding and mixed liquid flushing, and has a compact structure, powerful functions and low manufacturing cost.

Description of drawings

FIG. 1 is a front cross-sectional view of the wire rod rust removing nozzle of the present invention.

FIG. 2 is a perspective view of the wire rod derusting nozzle of the present invention from one perspective.

FIG. 3 is a cross-sectional view of the nozzle body.

4 is a cross-sectional view of the nozzle holder.

Figure 5 is a perspective view of the ruby nozzle mounted on the nozzle holder.

6 is a cross-sectional view of a mixing nozzle.

detailed description

The present invention will be described in further detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

1-6, a wire rod derusting nozzle is characterized in that it includes a nozzle body, a high-pressure water spray device and a sand feeding structure; wherein, a first mixing chamber 1 is provided in the nozzle body; the sand feeding The structure includes a sand inlet hole 17 that communicates with the first mixing chamber 1; the high-pressure water spray device includes a nozzle seat arranged in the nozzle body, and the nozzle seat is provided with a plurality of water spray holes 3 distributed along the circumferential direction. One end of the water spray hole 3 is communicated with the first mixing chamber 1, and the other end is communicated with the annular water inlet groove 8, and the annular water inlet groove 8 is communicated with the water inlet pipe; one end of the first mixing chamber 1 is provided with an outer diameter smaller than that of the mixing chamber. The wire inlet channel 6 of the outer diameter is provided with a wire outlet channel 7 at the other end, wherein the diameter of the wire inlet channel 6 is larger than the diameter of the wire rod, and an annular second mixing cavity is formed between the outside of the wire rod and the inner wall of the wire inlet channel 6; The diameter of the outlet channel 7 matches the wire.

Referring to FIGS. 1 and 3 , the spray head body includes a spray head front part and a spray head rear part for installing the high-pressure water spray device. The liquid cavity 2, the aperture of the liquid inlet cavity 2 is larger than the aperture of the first mixing cavity 1. By arranging the sprinkler body of the structure, the high-pressure water sprinkler is arranged at the rear of the sprinkler, and each functional module has a reasonable layout, compact structure and powerful functions.

Referring to FIGS. 1 , 4 and 5 , the nozzle holder includes a front nozzle holder 4 and a rear nozzle holder 5 , and the outer diameter of the front nozzle holder 4 is larger than the outer diameter of the rear nozzle holder 5 . A first step is formed between the front part 4 of the seat and the rear part 5 of the nozzle seat, and the first step is provided with a chamfered surface toward the rear part 5 of the nozzle seat; the rear part 5 of the nozzle seat is provided with a matching wire rod. A wire hole, the wire hole constitutes the wire outlet channel 7, the front part 4 of the nozzle seat is provided with a first tapered hole communicating with the wire outlet channel 7, and the first tapered hole is connected to the first tapered hole. The mixing chamber 1 is connected and the diameter of the hole gradually increases toward the first mixing chamber 1 , and the water spray hole 3 passes through the chamfered surface and the inner wall of the first conical hole. The nozzle seat of the structure is provided, and the chamfered surface of the high-pressure water flow enters and passes through the inner wall of the first conical surface. Since the first conical hole is communicated with the first mixing chamber 1, the high-pressure water flow passing through the first conical surface It can be directly sprayed on the surface of the wire in the first mixing chamber 1, and can drive the sandblasting in the first mixing chamber 1 to rush to the surface of the wire at a high speed, thereby removing the iron oxide scale on the surface of the wire.

1 , 4 and 5 , the high-pressure water spray device further includes a pressing structure, a water inlet hole 11 , a water inlet joint disposed outside the water inlet hole 11 , a sealing sleeve 12 , and a sealing sleeve 12 . The ruby nozzle 13 inside; the pressing structure is arranged in the liquid inlet chamber 2, one end of the pressing structure is pressed against the first step, and the end face of the pressing structure is close to the first mixing chamber 1 The annular water inlet groove 8 is formed with the chamfered surface and the inner wall of the liquid inlet chamber 2, and the water inlet hole 11 is communicated with the annular water inlet groove 8; the sealing sleeve 12 is installed on the water spray hole 3 close to the One side of the chamfered face. By arranging the above-mentioned high-pressure water spray device, the water inlet pipe is connected to the water inlet joint, the high-pressure water flow enters the annular water inlet groove 8 through the water inlet hole 11, and the high-pressure water flow in the annular water inlet groove 8 enters the water spray hole 3 through the ruby nozzle 13, thereby spraying onto the surface of the wire in the first mixing chamber 1 .

Referring to FIG. 1 and FIG. 5 , the pressing structure includes a pressing sleeve 9 and a locking pressing cap 10 . The outer diameter of the pressing sleeve 9 matches the inner diameter of the liquid inlet chamber 2 , and the pressing Both the sleeve 9 and the locking cap 10 are provided with internal holes matching the rear part 5 of the nozzle seat, the pressing sleeve 9 is sleeved on the rear part 15 of the nozzle, and one end is pressed against the A step; the locking cap 10 is connected with the liquid inlet chamber 2 through threads, and one end is pressed against the pressing sleeve 9 . When assembling, set the pressing sleeve 9 on the rear part 5 of the nozzle seat, then assemble the nozzle seat to the liquid inlet chamber 2, and lock the locking pressure cap 10, the locking pressure cap 10 is pressed against the pressing sleeve. One end of the barrel 9 is pushed forward, and the other end of the pressing sleeve 9 is pressed against the first step until the front part of the nozzle seat is pressed against the rear end of the first mixing chamber 1. At this time, the locking pressure cap 10 will press the sleeve The barrel 9 and the nozzle seat are fixed to the front of the wire rod derusting nozzle to complete the installation.

Referring to FIG. 1 and FIG. 5 , the sealing sleeve 12 is made of copper material. Using copper as the material of the sealing sleeve 12, on the one hand, due to the low hardness of copper, it is easy to install during assembly; on the other hand, the copper material will not rust even if it is exposed to water for a long time, and is more stable and durable.

Referring to FIGS. 1 and 4 , the high-pressure water spraying device further includes a waterproof structure including a waterproof groove and a waterproof gasket installed on the waterproof groove; wherein, the waterproof groove includes a waterproof groove arranged on the pressing sleeve 9 The first waterproof groove 18, the second waterproof groove 19 provided on the rear part 5 of the nozzle seat, and the third waterproof groove 20 provided on the front part 4 of the nozzle seat. By setting the above waterproof structure, the first waterproof groove 18 is arranged on the pressing sleeve 9 to prevent high-pressure water from flowing out of the rear of the wire rod rust removing nozzle from the liquid inlet chamber 2, and the second waterproof groove 19 is arranged on the rear part 5 of the nozzle seat to prevent The high-pressure water flow flows out from the inner wall of the compression sleeve 9 to the rear of the wire rod derusting nozzle, and the third waterproof groove 20 is arranged in the front part 4 of the nozzle seat to prevent the high-pressure water flow from entering the first mixing chamber 1 from the junction of the liquid inlet chamber 2 and the first mixing chamber 1. A mixing chamber 1; In summary, the provision of the waterproof structure can ensure that the high-pressure water flow can only enter the first mixing chamber 1 from the water spray hole 3, so as to be sprayed onto the surface of the wire material in the first mixing chamber 1, and the effect of rust removal can be improved. .

1 and 6, a mixing nozzle structure is also included, the mixing nozzle structure includes a mixing nozzle and a nozzle pressure cap 16 for installing the mixing nozzle on the front of the spray head; the mixing nozzle includes a nozzle front 14 and The rear part 15 of the nozzle, the outer diameter of the front part 14 of the nozzle is smaller than the outer diameter of the rear part 15 of the nozzle, so that a second step is formed between the front part 14 of the nozzle and the rear part 15 of the nozzle; The front part 14 of the nozzle; the rear part 15 of the nozzle is provided with a second conical hole that communicates with the wire inlet hole, the second conical hole communicates with the first mixing chamber 1 and the hole diameter faces the first mixing chamber 1 gradually increase. With the mixing nozzle of the above structure, when the high-pressure water flow and the mixed liquid of sandblasting flow from the first mixing chamber 1 through the inlet hole, the fluid cross-section of the mixed liquid decreases sharply, and the inner wall of the second conical hole has a positive effect on the mixed liquid. A recoil function, so that the mixed liquid recoiled through the inner wall of the second conical hole scours the entire circumferential surface of the wire again, thereby enhancing the effect of removing the iron oxide scale on the surface of the wire.

Referring to FIG. 1 and FIG. 6 , the nozzle pressing cap 16 includes a locking portion and a withholding portion, the locking portion is provided with a locking hole matching the nozzle rear portion 15 , and the withholding portion is provided with The withholding hole in the front part 14 of the nozzle is matched, and the locking part is threadedly connected with the liquid outlet chamber. When installing the mixing nozzle device, first fit the nozzle cap 16 on the mixing nozzle, press the withholding hole against the second step, and then fit the locking part with the liquid outlet chamber, along the direction of the first mixing chamber 1 . Tighten the lock in the direction and push the mixing nozzle to the position of the first mixing chamber 1, until the rear part 15 of the mixing nozzle abuts the front end of the first mixing chamber 1. At this time, the locking part is locked with the liquid outlet chamber, so that the mixing nozzle is locked. Installed on the wire derusting nozzle.

Referring to FIG. 1 and FIG. 2 , there are two sand inlet holes 17 , and the two sand inlet holes 17 are symmetrically arranged on the spray head body. Two symmetrical sand inlet holes 17 are provided, and the sand blasting enters the first mixing chamber 1 from both sides of the nozzle body at the same time, so that the sandblasting distribution in the first mixing chamber 1 is more uniform, and the entire circumferential surface of the wire is filled with sandblasting. , so as to improve the rust removal effect.

Referring to FIG. 2 , the sand feeding structure further includes a sand feeding joint 21 , and the sand feeding joint 21 is installed at the outer end of the sand feeding hole 17 . By arranging the above-mentioned sand feeding structure, quick installation and disassembly of the sand feeding pipeline and the wire rod rust removing nozzle can be realized, which is convenient for maintenance.

Referring to Figure 1-Figure 6, the working principle of the above-mentioned wire rod rust removal nozzle is:

The wire rod whose surface scale needs to be removed shall be derusted inside the wire rod derusting nozzle. The details are as follows: the wire rod enters the first mixing chamber 1 from the wire inlet channel 6, and passes through the first mixing chamber 1 from the wire outlet channel 7; the wire rod enters the first mixing chamber 1. After the mixing chamber 1, the high-pressure water spray device and the sand feeding structure are activated, and the high-pressure water flow enters the annular water inlet groove 8 from the water inlet pipe; , after the high-pressure water flow enters the annular water inlet groove 8, it enters the first mixing chamber 1 through the water spray hole 3, and at the same time, the sand blasting enters the first mixing chamber 1 from the sand inlet hole 17; the high-pressure water flow enters the first mixing chamber 1 After that, the sandblasting is driven to move at a high speed. Since there are multiple water spray holes 3 and the plurality of water spray holes 3 are distributed along the circumferential direction, the entire circumferential surface of the wire is filled with the high-speed moving water and sand mixture, which can be completely removed. The iron oxide scale on the surface of the entire wire; the water and sand mixed liquid mixed evenly in the first mixing chamber 1 flows out from the second mixing chamber at a high speed. Since the second mixing chamber is formed between the outside of the wire and the inner wall of the wire inlet channel The entire wire rod surface is filled with a uniform mixture of high-speed water flow and sandblasting, and the flow direction of the mixed liquid is opposite to the direction in which the wire rod enters the wire rod derusting nozzle, so that a pre-rust removal treatment is performed on the wire rod surface before entering the first mixing chamber 1 In this way, after the pre-rust-removed wire rod enters the first mixing chamber 1 for further rust-removal treatment, the iron oxide scale on the surface of the wire rod can be completely removed.

The above are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned contents, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are all Should be equivalent replacement manners, all are included within the protection scope of the present invention.

Claims

A wire rod derusting nozzle is characterized in that it includes a nozzle body, a high-pressure water spray device and a sand feeding structure; wherein, the nozzle body is provided with a first mixing chamber; the sand feeding structure includes a communication with the first mixing chamber. The high-pressure water spray device includes a nozzle seat arranged in the nozzle body, the nozzle seat is provided with a plurality of water spray holes distributed along the circumferential direction, and one end of the water spray holes is communicated with the first mixing chamber , the other end is communicated with the annular water inlet groove, and the annular water inlet groove is communicated with the water inlet pipe; one end of the first mixing chamber is provided with an inlet channel with an outer diameter smaller than the outer diameter of the mixing chamber, and the other end is provided with an outlet channel, wherein, The diameter of the wire inlet channel is larger than the diameter of the wire rod, and an annular second mixing cavity is formed between the outer side of the wire rod and the inner wall of the wire inlet channel; the diameter of the wire outlet channel matches the wire rod.
A wire rod derusting nozzle according to claim 1, wherein the nozzle body comprises a nozzle front part and a nozzle rear part for installing the high-pressure water spray device, and the rear part of the nozzle body is provided with The liquid inlet chamber communicated with the first mixing chamber, the aperture of the liquid inlet chamber is larger than the aperture of the first mixing chamber.
The wire rod derusting nozzle according to claim 2, wherein the nozzle holder comprises a front part of the nozzle holder and a rear part of the nozzle holder, and the outer diameter of the front part of the nozzle holder is larger than the outer diameter of the rear part of the nozzle holder , so that a first step is formed between the front of the nozzle seat and the rear of the nozzle seat, and the first step is provided with a chamfered surface toward the rear of the nozzle seat; the rear of the nozzle seat is provided with a matching wire rod. a wire hole, the wire hole constitutes the outlet channel, the front part of the nozzle seat is provided with a first conical hole that communicates with the outlet channel, and the first conical hole communicates with the first mixing chamber And the hole diameter gradually increases toward the first mixing chamber, and the water spray hole passes through the chamfered surface and the inner wall of the first conical hole.
A wire rod derusting nozzle according to claim 3, characterized in that the high-pressure water spray device further comprises a pressing structure, a water inlet hole, a water inlet joint disposed outside the water inlet hole, a sealing sleeve and a mounting plate. The ruby nozzle in the sealing sleeve; the pressing structure is arranged in the liquid inlet chamber, one end of the pressing structure is pressed against the first step, and the other end of the pressing structure is close to the first mixing chamber. The end surface, the chamfered surface and the inner wall of the liquid inlet cavity constitute the annular water inlet groove, and the water inlet hole is communicated with the annular water inlet groove; the sealing sleeve is installed on a side of the water spray hole close to the chamfered surface. side.
The wire rod derusting nozzle according to claim 4, wherein the pressing structure comprises a pressing sleeve and a locking pressure cap, and the outer diameter of the pressing sleeve is the same as that of the liquid inlet cavity. The inner diameters match, the pressing sleeve and the locking cap are provided with internal holes matching the rear of the nozzle seat, the pressing sleeve is sleeved on the rear of the nozzle, and one end is pressed against the rear of the nozzle. the first step; the locking pressure cap is connected with the liquid inlet chamber through threads, and one end is pressed against the pressing sleeve.
The wire rod derusting nozzle according to claim 4, wherein the sealing sleeve is made of copper material.
The wire rod rust removing nozzle according to claim 5, wherein the high-pressure water spray device further comprises a waterproof structure, and the waterproof structure comprises a waterproof groove and a waterproof gasket installed on the waterproof groove; wherein, the The waterproof groove includes a first waterproof groove arranged on the pressing sleeve, a second waterproof groove arranged at the rear of the nozzle seat, and a third waterproof groove arranged at the front of the nozzle seat.
A wire rod derusting nozzle according to claim 2, further comprising a mixing nozzle structure, the mixing nozzle structure comprising a mixing nozzle and a nozzle pressure cap for installing the mixing nozzle on the front of the nozzle; The mixing nozzle includes a front part of the nozzle and a rear part of the nozzle, and the outer diameter of the front part of the nozzle is smaller than the outer diameter of the rear part of the nozzle, so that a second step is formed between the front part of the nozzle and the rear part of the nozzle; The hole is arranged at the front of the nozzle; the rear of the nozzle is provided with a second conical hole that communicates with the wire inlet hole, the second conical hole communicates with the first mixing chamber and has a hole diameter facing the first mixing chamber gradually increase.
The wire rod derusting nozzle according to claim 8, wherein the nozzle pressure cap comprises a locking part and a withholding part, and the locking part is provided with a locking hole matching the rear part of the nozzle , the withholding part is provided with a withholding hole matched with the front part of the nozzle, and the locking part is threadedly connected with the liquid outlet chamber.
A kind of wire rod derusting nozzle according to claim 1, is characterized in that, described sand inlet hole has two, and described two sand inlet holes are symmetrically arranged on the shower head body.