CN201143657Y

CN201143657Y - Nozzle extracting tool of device for descaling with high-pressure water

Info

Publication number: CN201143657Y
Application number: CNU2008200546909U
Authority: CN
Inventors: 刘福; 袁福根; 倪建华; 刘健
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2008-01-14
Filing date: 2008-01-14
Publication date: 2008-11-05
Anticipated expiration: 2018-01-14

Abstract

The utility model discloses a nozzle demounting tool of a high pressure descaling unit, which comprises a handle, a tension rod, a screwed linker and a sleeve; a pylome is arranged at the center of the handle; the tension rod passes through the pylome of the handle which is capable of sliding on the tension rod; the head part of the tension rod is connected with the screwed linker by screw thread; a cylinder check block is arranged at the trail part of the tension rod; the diameter of the cylinder check block is bigger that the internal diameter of the pylome of the handle; the sleeve is connected with the thread linker by screw thread. The nozzle demounting tool of the high pressure descaling unit of the utility model has the advantages that the nozzle of the high pressure descaling unit can be quickly and efficiently dismantled; the operation is safe and convenient.

Description

The nozzle extracting tool of high pressure water descaling device

Technical field

The utility model relates to a kind of auxiliary equipment of milling train high pressure water descaling device, particularly a kind of nozzle extracting tool of high pressure water descaling device.

Background technology

After slab is heated to more than 1000 ℃ in heating furnace, can form the iron scale of 2～3mm thickness at rolled surface, because the generation of iron scale is very big to the surface quality influence of finished product steel plate, therefore heavy plate mill is provided with high pressure water descaling device, be mainly used in the secondary oxidation iron sheet that a stove removing steel slab surface is given birth to iron scale and produced when rolling, the pressure minimum at descaling jet place is 210bar.

Fig. 1 is the schematic diagram of high pressure water descaling device, consult shown in Figure 1, high pressure water descaling device is made of descaling header 1, locking nut 2 and nozzle 3, nozzle 3 is packed in the descaling header 1, nozzle 3 is provided with flange 31, flange 31 by locking nut 2 pins on the nozzle 3 is fixedly mounted on nozzle 3 in the descaling header 1.Its installation process is very simple.

In actual production process; because nozzle 3 uses under the adverse circumstances of high pressure, high temperature; be damaged through regular meeting; find that when defective nozzle being safeguarded replacing the nozzle dismounting is very difficult; cause the reason of nozzle dismounting difficulty that the following aspects is arranged: 1. milling train de-scaling water is turbid circulating water in the factory; water quality is relatively poor, is easy to pile up in the gap of descaling header and nozzle.2. de-scaling water pressure is too big, with the impurity between descaling header and nozzle press very solid.3. normally about 3 months to 6 months, the cycle is longer the nozzle exchange cycle, causes nozzle and descaling header to be bonded together owing to surface oxidation and corrosion.Nozzle dismounting difficulty even some nozzles can't be dismantled, and have caused very burden to production, have a strong impact on operating efficiency.

Summary of the invention

For addressing the above problem, the utility model provides a kind of nozzle extracting tool of high pressure water descaling device, fast and effeciently dismantles the nozzle of high pressure water descaling device, makes things convenient for the replacing of nozzle.

For achieving the above object, the nozzle extracting tool of high pressure water descaling device of the present utility model comprises handle, pull bar, nipple and sleeve; The center of described handle has through hole; Described pull bar passes the through hole of handle, and handle can slide on pull bar, and the head of described pull bar is threaded with described nipple, and the afterbody of described pull bar has a cylinder block, and the diameter of described cylinder block is greater than the through hole internal diameter of handle; Described sleeve is threaded with described nipple.

The head of described sleeve is the semicircular ring shape, and its semicircular ring head has groove, also is provided with bolt hole on the described sleeve, is connected with clamping screw on the bolt hole.

The nozzle extracting tool of high pressure water descaling device of the present utility model can fast and effeciently be dismantled the nozzle of high pressure water descaling device and easy to operate, safety.

Description of drawings

Fig. 1 is the schematic diagram of high pressure water descaling device;

Fig. 2 is the nozzle extracting tool schematic diagram of high pressure water descaling device of the present utility model;

Fig. 3 is the schematic perspective view of Fig. 2 middle sleeve;

Fig. 4 is the schematic cross-section of Fig. 2 middle sleeve;

Fig. 5 is the nozzle extracting tool and the nozzle connected mode schematic diagram of high pressure water descaling device;

Fig. 6 is the nozzle extracting tool of high pressure water descaling device and schematic diagram after nozzle is connected.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is specifically described:

Fig. 2 is the nozzle extracting tool schematic diagram of high pressure water descaling device of the present utility model, and as shown in the figure, the nozzle extracting tool of high pressure water descaling device of the present utility model is made up of handle 10, pull bar 20, nipple 30 and sleeve 40.

The center of handle 10 has through hole, and pull bar 20 slip relatively in through hole is convenient in the effect of this through hole.

Pull bar 20 passes the central through hole of handle 10, and handle 10 can slide on pull bar 20, the head of pull bar 20 is threaded with nipple 30, the afterbody of pull bar 20 has a cylinder block 201, and the diameter of block 201 is greater than the internal diameter of the central through hole of handle 10, but makes the cylinder block 201 of handle 10 hammering pull bar 20 afterbodys when sliding.At the middle part of through hole the taper hole of diameter greater than central through hole can be set, the junction of taper hole and centre bore is designed to a platform, and this platform is evenly stressed when the cylinder block 201 of handle 10 hammering pull bars 20 afterbodys.

Sleeve 40 is threaded with nipple 30.Sleeve 40 is used to connect the nozzle of high pressure water descaling device.

Fig. 3 is the schematic perspective view of Fig. 2 middle sleeve, Fig. 4 is the schematic cross-section of Fig. 2 middle sleeve, as shown in the figure, the head of sleeve 40 is the semicircular ring shape, and its semicircular ring head has groove 401, and the effect of this groove 401 is to block the flange of nozzle shown in Figure 13 31, also be provided with bolt hole 402 on the sleeve 40, be used to install clamping screw 50, the effect of clamping screw 50 be at the flange 31 of nozzle 3 with after the semicircular ring head recess 401 of sleeve 40 is connected, pin the head of nozzle 3.

Fig. 5 is the nozzle extracting tool and the nozzle connected mode schematic diagram of high pressure water descaling device, when the nozzle of high pressure water descaling device need be dismantled, at first remove the locking nut 2 of Fig. 1 mesohigh water descaling device, as shown in Figure 5, nozzle extracting tool with high pressure water descaling device is connected with the nozzle of high pressure water descaling device by the direction of arrow shown in the figure then, flange 31 on the

groove

401 and 3 of sleeve 40 heads is cooperated, tighten clamping screw 50 at last, nozzle 3 is pinned.The nozzle extracting tool of high pressure water descaling device and schematic diagram after nozzle 3 is connected are as shown in Figure 6.By the semicircular ring head recess 401 of sleeve 40 and cooperating of clamping screw 50, both sides up and down shown in the figure are respectively fixed the nozzle of high pressure water descaling device, and the nozzle extracting tool of high pressure water descaling device of the present utility model firmly is connected with the nozzle of high pressure water descaling device.

The cylinder block 201 of the position of moving handle 10 and hammering pull bar 20 afterbodys just can be finished the dismounting of the nozzle of high pressure water descaling device subsequently, accomplishes safety, convenient, efficient.

Claims

1, a kind of nozzle extracting tool of high pressure water descaling device is characterized in that, comprises handle, pull bar, nipple and sleeve; The center of described handle has through hole; Described pull bar passes the through hole of handle, and handle can slide on pull bar, and the head of described pull bar is threaded with described nipple, and the afterbody of described pull bar has a cylinder block, and the diameter of described cylinder block is greater than the through hole internal diameter of handle; Described sleeve is threaded with described nipple.

2, the nozzle extracting tool of high pressure water descaling device as claimed in claim 1 is characterized in that, the head of described sleeve is the semicircular ring shape, and its semicircular ring head has groove, also is provided with bolt hole on the described sleeve, is connected with clamping screw on the bolt hole.