CN220346866U

CN220346866U - Purging device for preheating straightener

Info

Publication number: CN220346866U
Application number: CN202321449978.7U
Authority: CN
Inventors: 陈平; 倪汉彬; 何明涛; 谢富强; 雒广杰
Original assignee: Institute Of Research Of Iron & Steel shagang jiangsu Province; Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Current assignee: Institute Of Research Of Iron & Steel shagang jiangsu Province; Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-01-16
Anticipated expiration: 2033-06-08

Abstract

The utility model relates to the technical field of ferrous metallurgy, and discloses a purging device for a preheating straightener. The utility model is arranged at one side of the inlet end of a preheating and straightening machine, and comprises a positioning block, a supporting guide rod, an adjusting component and a blowing component, wherein the positioning block is fixedly connected to a supporting side beam of the preheating and straightening machine, and the supporting guide rod is longitudinally and fixedly connected to the positioning block; the adjusting components comprise a plurality of groups and are connected to the supporting guide rod in a sliding and lifting manner from top to bottom; the blowing component comprises a plurality of groups which are respectively and correspondingly and fixedly connected to the adjusting component; the adjusting component can drive the blowing component to axially rotate along the supporting guide rod or drive the blowing component to pitch and adjust an included angle along the vertical plane. According to the purging device, the space position of the blowing component can be correspondingly adjusted through the adjusting component, the full coverage of the surface of the steel plate is achieved, the pressure of the sprayed air flow is kept basically consistent, the purging operation of the steel plate without dead angles is achieved, and the quality of the surface of the steel plate is improved.

Description

Purging device for preheating straightener

Technical Field

The utility model relates to the technical field of ferrous metallurgy, in particular to a purging device for a preheating straightener.

Background

The preheating straightener is mainly used for straightening the rolled large plate cylinder steel billet before cooling, so that the plate shape of the large plate of the steel billet is good during ultra-fast cooling, and the cooling is uniform. However, the existing billet large plate mainly has the following problems in the production process of a preheating straightener: (1) Water drops remain on the surface of the steel plate entering the inlet of the preheating straightener, and watermarks are easily generated on the surface of the steel plate directly through the preheating straightener, so that the quality problem of the surface of the steel plate is caused; (2) The secondary ferric oxide is easy to generate on the surface of the steel plate, scattered pits are generated on the head of the steel plate after preheating and correcting, the surface quality of the product is affected, and the production is possibly stopped when serious.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a purging device for a preheating and straightening machine, which is used for purging the surface of a steel plate passing through the preheating and straightening machine by high-pressure air through arranging the purging device on one side of the preheating and straightening machine, so that the quality problem of the surface of the steel plate is solved.

The technical scheme is as follows: the utility model relates to a purging device for a preheating and straightening machine, which is fixedly arranged at one side of the inlet end of the preheating and straightening machine and comprises the following components:

the positioning block is fixedly connected to the supporting side beam of the preheating straightener;

the supporting guide rod is longitudinally and fixedly connected to the positioning block;

the adjusting components comprise a plurality of groups and are connected to the supporting guide rod in a sliding lifting manner from top to bottom;

the blowing assembly comprises a plurality of groups of blowing assemblies which are respectively and correspondingly and fixedly connected to the adjusting assembly; the adjusting component can drive the blowing component to axially rotate along the supporting guide rod or drive the blowing component to adjust the pitching included angle along the plumb plane.

Preferably, the adjusting component comprises a lifting sliding block and an angle adjusting sliding block;

the lifting sliding block is provided with a through hole which is vertically arranged at two ends, the two ends of the lifting sliding block are provided with first expansion joints which are communicated with the through hole, the two ends of the lifting sliding block are provided with connecting screw holes which are communicated with two side plate bodies of the first expansion joints, the connecting screw holes are internally connected with a threaded connecting rod, and one end of the threaded connecting rod is fixedly connected with an adjusting handle;

the angle adjusting sliding block is provided with a through hole at one end, a second expansion joint communicated with the through hole is formed at the end part of the angle adjusting sliding block, a connecting screw hole penetrating through two side plate bodies of the second expansion joint is formed at the end part of the angle adjusting sliding block, a threaded connecting rod is connected in the connecting screw hole, and one end of the threaded connecting rod is fixedly connected with an adjusting handle;

one through hole of the lifting slide block is sleeved on the supporting guide rod, the other through hole of the lifting slide block is connected with a horizontal connecting rod in a sliding mode, and the through hole of the angle adjusting slide block is sleeved at the other end of the horizontal connecting rod in a sliding mode.

Preferably, the supporting guide rod is provided with scale marks along the length direction thereof;

the horizontal connecting rod is provided with scale marks along the length direction of the horizontal connecting rod.

Preferably, the other end face of the angle adjusting sliding block is provided with an installation clamping groove;

the injection assembly comprises a support sleeve fixedly clamped in the installation clamping groove and an injection pipe which is slidably connected in the support sleeve, threaded connectors are respectively and fixedly connected to two ends of the injection pipe, and one end of the injection pipe is fixedly connected with a pressurizing nozzle through the threaded connectors.

Preferably, a connecting port is fixedly arranged on the outer periphery of the pipe body of the support sleeve, a screwing positioning piece is connected in the connecting port in a threaded manner, and the screwing positioning piece can rotate forward or backward.

Preferably, a pressurizing flow channel is arranged in the pressurizing nozzle, and the pressurizing flow channel is a conical flow channel from inside to outside along the axial direction.

Preferably, the other end of the jetting pipe is connected with an air inlet pipeline, and an air pressure reducing valve and a pneumatic cut-off valve are connected into the air inlet pipeline.

Preferably, the hot detection devices are respectively arranged at the positions corresponding to the tail of the finishing mill at the front end of the preheating straightener and the rear end of the purging device, and are respectively interlocked with the pneumatic cut-off valve.

Compared with the prior art, the utility model has the following beneficial effects:

according to the purging device, the distance between two adjacent groups of blowing assemblies can be adjusted by adjusting the heights and the circumferential positions of the plurality of adjusting assemblies on the supporting guide rod; the pitching angle of the jetting assembly is adjusted by adjusting the circumferential position of the angle adjusting slide block on the horizontal connecting rod, so that the included angle between the front ends of the jetting pipes and the straightening roller plane of the preheating straightener is adjusted; the position of the blowing pipes in the support sleeve is adjusted, so that the lengths of the different blowing pipes extending out of the support sleeve are different, the condition that the surfaces of steel plates passing through the blowing device are covered by blowing gas of the blowing pipes is met, the pressure of the sprayed gas flow is kept basically consistent, dead-angle-free blowing operation is realized, and adverse effects on the operation of the preheating straightener are avoided. Control systems such as pneumatic shut-off valve, the thermal detection device that the cooperation of blowing subassembly set up can realize blowing device automated control, reduces amount of wind and energy consumption.

Drawings

FIG. 1 is a schematic diagram of the installation structure of a preheating straightener and a purging device of the utility model;

FIG. 2 is an enlarged schematic view of the preheating straightener and the purging device in FIG. 1;

FIG. 3 is a schematic perspective view of the purge device of FIG. 2;

FIG. 4 is a schematic perspective view of the adjusting assembly of FIG. 3;

fig. 5 is a schematic perspective view of the blowing assembly of fig. 2.

Reference numerals:

1. preheating a straightener; 11. straightening a roller way; 111. supporting the side beams; 112. a support roller; 12. a driving mechanism;

2. a purge device; 21. a positioning block; 22. supporting the guide rod; 221. scale marks; 23. an adjustment assembly; 231. a lifting slide block; 2311. a connecting screw hole; 2312. a first expansion joint; 2313. a through hole; 232. a threaded connecting rod; 233. an adjusting handle; 234. an angle adjusting sliding block; 2341. a second expansion joint; 2342. installing a clamping groove; 235. a horizontal link; 24. a blowing assembly; 241. a support sleeve; 2411. a connection port; 2412. screwing the positioning piece; 242. a blowing pipe; 243. a threaded joint; 244. and (5) pressurizing the spray head.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 5 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1-2, the preheating straightener 1 comprises a straightening roller way 11 and a driving mechanism 12 for driving the straightening roller way to run, wherein the driving mechanism 12 can adopt a driving motor and a chain transmission mechanism which are arranged conventionally; the straightening roller way 11 comprises supporting side beams 111 which are arranged on two sides in parallel and a plurality of supporting rollers 112 which are rotatably connected between the two groups of supporting side beams 111, and the driving mechanism 12 can drive the supporting rollers 112 to rotate along the axial direction of the supporting rollers.

As shown in fig. 1-2, the purging device 2 for the preheating and straightening machine is fixedly arranged at one side of the front end of the inlet of the preheating and straightening machine 1, and particularly can be arranged at the position of the front end of the preheating and straightening machine 1, which is 0.8 m away from the inlet end of the preheating and straightening machine 1, so as to perform high-pressure air washing on the surface of a steel plate passing through the finishing mill; or can be directly arranged on the supporting side beam 111 at one side of the inlet end of the preheating and straightening machine to directly wind wash the surface of the billet entering the preheating and straightening machine 1 so as to remove possible water stains on the surface of the steel plate and reduce the surface defects formed when the steel plate enters the preheating and straightening machine.

As shown in fig. 3 to 4, the purging device 2 comprises a positioning block 21, a supporting guide rod 22, an adjusting assembly 23 and a blowing assembly 24, wherein the positioning block 21 is fixedly connected to a supporting side beam 111 of the preheating straightener, the supporting guide rod 22 is longitudinally and fixedly connected to the positioning block 21, and the supporting guide rod 22 is provided with scale marks 221 along the length direction thereof.

The adjusting components 23 comprise a plurality of groups, and are connected to the supporting guide rod 22 in a sliding and lifting manner from top to bottom; each set of adjustment assemblies 23 includes a lift slider 231 and an angle adjustment slider 234; through holes 2313 which are vertically arranged are respectively formed at two ends of the lifting sliding block 231, first expansion joints 2312 which are communicated with the through holes 2313 are formed at two ends of the lifting sliding block 231, connecting screw holes 2311 which penetrate through two side plate bodies of the first expansion joints 2312 are formed at two ends of the lifting sliding block 231, a threaded connecting rod 232 is connected in the connecting screw holes 2311, and one end of the threaded connecting rod 232 is fixedly connected with an adjusting handle 233; the through hole has been seted up to angle modulation slider 234 one end, and its tip has seted up the second expansion joint 2341 with the through-hole intercommunication, and angle modulation slider 234 tip is equipped with the connecting screw that link up the second expansion joint both sides board body, is connected with the screw link in the connecting screw, and screw link one end fixedly connected with adjustment handle 233. Wherein, one through hole 2313 of the lifting slide block 231 is sleeved on the supporting guide rod 22, and the tightness of the first expansion joint 2312 is adjusted by adjusting the adjusting handle 233 at the corresponding end of the lifting slide block 231, so that the lifting slide block 231 can be conveniently and rapidly adjusted along the supporting guide rod 22, horizontally rotated, and fixedly connected with the supporting guide rod. The other through hole 2313 of the lifting slide block 231 is slidably connected with a horizontal connecting rod 235, and the tightness of the first expansion joint 2312 is adjusted by adjusting the adjusting handle 233 at the corresponding end of the lifting slide block 231, so that the position of the horizontal connecting rod 235 in the through hole of the lifting slide block 231 can be conveniently adjusted, namely the extending length of the horizontal connecting rod 235 is adjusted, and the axial rotation angle of the horizontal connecting rod 235 along the horizontal connecting rod can be controlled, and the horizontal connecting rod 235 is fixedly connected with the lifting slide block 231. The through hole of angle modulation slider 234 slip cap dress is at the other end of horizontal connecting rod 235, and horizontal connecting rod 235 is provided with the scale marking along its length direction, adjusts the elasticity of second expansion joint 2341 through adjusting handle 233 of the corresponding one end of angle modulation slider 234 to convenient regulation angle modulation slider 234 is in the position on horizontal connecting rod 235, still adjustable angle modulation slider 234 is along the rotation angle of horizontal connecting rod 235, and with horizontal connecting rod 235's fixed connection. The adjustment assembly 23 may allow for easy adjustment of the spatial position.

As shown in fig. 4-5, the other end surface of the angle adjusting slider 234 is provided with a mounting slot 2342. The blowing assemblies 24 include a plurality of groups, and each group of blowing assemblies 24 is correspondingly and fixedly connected to the adjusting assembly 23. The blowing assembly 24 comprises a support sleeve 241 fixedly clamped in a mounting clamping groove 2342 and a blowing pipe 242 slidably connected in the support sleeve, a connecting port 2411 is fixedly arranged on the outer periphery of the pipe body of the support sleeve 241, a screwing positioning piece 2412 is connected in the connecting port 2411 in a threaded manner, the screwing positioning piece 2412 can adopt a positioning screw or a reducing screw rod so as to reduce the axial stroke of the screwing positioning piece 2412, and the screwing positioning piece advances or retreats through rotation, so that the position of the blowing pipe 242 in the support sleeve 241 is fixed. The two ends of the blowing pipe 242 are fixedly connected with threaded joints 243 respectively, one end of the blowing pipe 242 is fixedly connected with a pressurizing nozzle 244 through the threaded joints 243, a pressurizing flow passage is arranged in the pressurizing nozzle 244 and is a conical flow passage from inside to outside along the axial direction, so that gas sprayed out of the pressurizing nozzle 244 keeps a certain pressure and covers a certain area.

An air inlet pipeline (not shown) is connected to the other end of the blowing pipe 242, an air pressure reducing valve and a pneumatic cut-off valve are connected to the air inlet pipeline, the air pressure reducing valve keeps the air flow flowing into the blowing pipe 242 at stable pressure, and the pneumatic cut-off valve can cut off the air flow flowing into the blowing pipe 242 in real time. The tail of the finishing mill at the front end of the preheating straightener 1 and the corresponding position of the rear end of the sweeping device 2 are respectively provided with a thermal detection device, and the thermal detection device can be a laser temperature measurement probe; specifically, the front side and the rear side of the blowing device 2 are respectively provided with a thermal detection device, the two groups of thermal detection devices are respectively interlocked with a pneumatic cut-off valve, when the front end of a hot steel plate on the finishing mill passes through the thermal detection device arranged on the front side of the blowing device 2, the thermal detection device uploads a temperature signal and controls the pneumatic cut-off valve to open a blowing pipe 242 for air intake, and the blowing device 2 is started in advance to blow the upcoming steel plate; when the steel plate enters the preheating straightener 1 and then the blowing device 2 continuously blows and washes the surface of the steel plate until the steel plate passes through the blowing device 2, the heat detection device detects that the steel plate leaves and then uploads a temperature signal, and the pneumatic cut-off valve is controlled to cut off the air inlet of the blowing pipe 242, so that the blowing device 2 can be closed when no steel plate passes through the preheating straightener 1, and the gas and energy consumption is reduced.

The working principle or the working method of the utility model:

during operation, the distance between two adjacent groups of blowing assemblies can be adjusted by adjusting the heights and circumferential positions of the plurality of adjusting assemblies 23 on the supporting guide rod 22; through adjusting angle modulation slider 234 circumference position on horizontal connecting rod 235 to adjust the pitch angle of jetting subassembly, thereby adjust the contained angle between many injection pipe 242 front ends and the straightening roll table 11 plane of preheating straightener, through adjusting the position of injection pipe 242 in support sleeve 241, make different injection pipe 242 stretch out support sleeve 241 length difference, thereby satisfy many injection pipe 242 jetting gas to the steel sheet surface full coverage through blowing device 2, and keep blowout air current pressure basically unanimous, realize no dead angle blowing operation.

Control systems such as pneumatic shut-off valve, the thermal detection device that the cooperation of blowing subassembly set up can realize blowing device 2 automated control, reduces amount of wind and energy consumption.

The foregoing is a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model and are intended to be comprehended within the scope of the present utility model.

Claims

1. A purge device for a preheating straightener, characterized in that the purge device (2) is fixedly arranged at one side of an inlet end of the preheating straightener (1), and comprises:

the positioning block (21), the positioning block (21) is fixedly connected to a supporting side beam (111) of the preheating straightener;

the support guide rod (22), the support guide rod (22) is longitudinally and fixedly connected to the positioning block (21);

the adjusting assemblies (23) comprise a plurality of groups, and the adjusting assemblies (23) are connected to the supporting guide rod (22) in a sliding lifting manner from top to bottom;

the blowing assembly (24) comprises a plurality of groups of blowing assemblies (24), and the groups of blowing assemblies are respectively and correspondingly and fixedly connected to the adjusting assembly (23); the adjusting component (23) can drive the blowing component (24) to axially rotate along the supporting guide rod (22) or drive the blowing component (24) to adjust the pitching included angle along the plumb plane.

2. The purge apparatus for a pre-heat straightener according to claim 1, wherein the adjustment assembly (23) comprises a lifting slide (231) and a recliner slide (234);

the lifting device comprises a lifting sliding block (231), a lifting handle (233) and a lifting handle (2313), wherein through holes (2313) are formed in two ends of the lifting sliding block (231) and are vertically arranged, first expansion joints (2312) communicated with the through holes (2313) are formed in two ends of the lifting sliding block (231), connecting screw holes (2311) penetrating through two side plate bodies of the first expansion joints (2312) are formed in two ends of the lifting sliding block (231), a threaded connecting rod (232) is connected in the connecting screw holes (2311), and one end of the threaded connecting rod (232) is fixedly connected with the lifting handle (233);

a through hole is formed in one end of the angle adjusting sliding block (234), a second expansion joint (2341) communicated with the through hole is formed in the end of the angle adjusting sliding block, a connecting screw hole penetrating through two side plate bodies of the second expansion joint is formed in the end of the angle adjusting sliding block (234), a threaded connecting rod is connected in the connecting screw hole, and an adjusting handle (233) is fixedly connected to one end of the threaded connecting rod;

wherein, one through hole (2313) of the lifting slide block (231) is sleeved on the supporting guide rod (22), the other through hole (2313) of the lifting slide block (231) is connected with a horizontal connecting rod (235) in a sliding way, and the through hole of the angle adjusting slide block (234) is sleeved at the other end of the horizontal connecting rod (235) in a sliding way.

3. The purge apparatus for a pre-heat straightener according to claim 2, wherein the support guide bar (22) is provided with scale markings (221) along its length;

the horizontal link (235) is provided with scale markings along its length.

4. The purging device for a pre-heat straightener as claimed in claim 2, characterized in that the other end face of the angle adjusting slide block (234) is provided with an installation clamping groove (2342);

the blowing assembly (24) comprises a support sleeve (241) fixedly clamped in an installation clamping groove (2342) and a blowing pipe (242) slidably connected in the support sleeve, threaded connectors (243) are respectively and fixedly connected to two ends of the blowing pipe (242), and one end of the blowing pipe (242) is fixedly connected with a pressurizing nozzle (244) through the threaded connectors (243).

5. The purging device for a pre-heat straightener according to claim 4, wherein a connecting port (2411) is fixedly arranged on the outer periphery of the pipe body of the support sleeve (241), a screwing positioning piece (2412) is connected in the connecting port (2411) in a threaded manner, and the screwing positioning piece (2412) can be rotated forward or backward.

6. The purge apparatus for a pre-heat straightener according to claim 4, wherein a pressurizing flow path is provided in the pressurizing nozzle (244), the pressurizing flow path being a tapered flow path from inside to outside in the axial direction.

7. The purging device for a pre-heat straightener as set forth in claim 4, wherein an air intake pipe is connected to the other end of the blowing pipe (242), and an air pressure reducing valve and a pneumatic cut-off valve are connected to the air intake pipe.

8. The purging device for a pre-heat straightener according to claim 7, wherein a thermal detection device is respectively arranged at the corresponding position of the tail of a finishing mill at the front end of the pre-heat straightener (1) and the rear end of the purging device (2), and the thermal detection device is respectively interlocked with a pneumatic cut-off valve.