JPH01100213A - Device for fitting and removing lance hose - Google Patents

Abstract

PURPOSE:To enable automatic fitting/removing a hose from a lance by shifting as approaching the hose to the lance with touching/detaching means jointing both quick couplers and arranging releasing means for lock of the couplers with turning of the lever. CONSTITUTION:The lance 1 is fixed to a fixed member 3 as turning joint end 2 upward and the hose 6 is vertically fixed to supporting member 5. The quick coupler 8 for female side is fitted to lower end of the hose 6 and the quick coupler 9 for male side is fitted to upper end of the lance 1. The supporting member 5 and the hose 6 are descended by driving a cylinder 7 and both couplers 8, 9 are jointed. The lever 18 is shifted to lock position at A point by retreating a position in a cylinder 16. At the time of completing blowing of dephosphorizing agent, etc., jointing member 13 is descended by advancing the piston in the cylinder 16 and the lever 18 is turned to B point to release lock of the couplers 8, 9. Next, the hose is ascended by retreating the piston of the cylinder 7 through the supporting member 5.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lance hose attachment and detachment device for attaching and detaching a powder injection lance and a powder supply hose, or an oxygen lance and an oxygen supply hose in hot metal pretreatment, etc. Regarding.

[Prior Art] In hot metal pretreatment, a lance is inserted into a hot metal ladle, and the lower end of the lance is placed approximately 3 m above the surface of the hot metal. Then, a powdered dephosphorizing agent is blown into the hot metal through this lance. The dephosphorizing agent is stored in a hopper, and the dephosphorizing agent in the hopper is cut out to a supply pipe whose one end is connected to a nitrogen gas supply source. A hose is connected to the other end of this supply pipe, and after the worker connects this hose to the lance, the dephosphorizing agent is supplied to the lance using nitrogen gas as a carrier, and the dephosphorizing agent is transferred from the lance to the hot metal pot. Blow into the molten metal inside.

[Problems to be solved by the invention] However, since the worker carries the hose, aligns the connecting end of the hose with the connecting end of the lance, and tightens both with bolts to connect the hose to the lance, the dephosphorizing agent The disadvantage is that the blowing work is complicated.

This invention was made in view of the above circumstances, and includes a powder injection lance and a hose connected to a powder supply source.
An object of the present invention is to provide a lance hose attachment/detachment device that can be automatically attached/detached.

[Means for Solving the Problems] The lance hose attaching/detaching device according to the present invention has the following features:
a fixing means for fixing the end; a support member for supporting the hose; a means for moving the hose supported by the support member toward and away from the connecting end of the lance; and connecting the connecting end of the lance and the hose. Detachable couplers attached to each end, a lever attached to the hose-side coupler and locking or unlocking the dual-power puller by its rotation, and a rotation mechanism attached to the support member to rotate the lever. It is characterized by having a means.

[Operation] In this invention, the connecting end of the lance is fixed to the fixing means, and the approaching/separating means moves the hose close to the lance via the support member. Then, connect the detachable coupler of the hose to the detachable coupler of the lance.

Thereby, the hose is connected to the lance, the powder carried by the carrier gas is supplied to the lance via the hose, and the powder is sprayed or blown into the Fgm from the tip of the lance.

Next, after the powder processing is completed, when the rotating means attached to the support member rotates the lever, the detachable coupler is detached and the hose and lance are separated. Thereafter, the contact/separation means separates the hose from the lance via the support member. This allows the hose to be automatically attached to and detached from the lance.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view showing a lance hose attaching/detaching device according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is an enlarged side view showing the vicinity of a coupler.

The lance 1 is fixed to a fixing member 3 installed on the floor with its upper connecting end 2 facing upward.

A pair of arms 4 are fixed to the upper part of the fixed member 3 so as to protrude horizontally, and a support member 5 is attached to the arms 4 so as to be movable up and down. And, this support member 5 has
A hose 6 is fixed with its longitudinal direction perpendicular.

Further, a cylinder 7 is attached to the fixed member 3 with its piston facing downward, and this piston is attached to the support member 5.
is fixed. This cylinder 7 drives the support member 5 up and down. Accordingly, the hose 6 can be moved vertically with its longitudinal direction perpendicular by raising and lowering the support member 5 by driving the cylinder 7.

A female detachable coupler 8 is attached to the lower connecting end of the hose 6, and a male detachable coupler 9 is attached to the upper connecting end of the lance 1.

A rubber member 10 is disposed between the cover 8 of the hose 6 and the hose body fixed to the support member 5.

The hose 6 has a guide section 11 between the rubber member 10 and the cover 8, and the support member 5 also has a guide section 12 parallel to the guide section 11 at its lower end.

A cylindrical portion 14.15 of the connecting member 13 is fitted into each of these guide portions 11.12. A cylinder 16 is fixed to the support member 5 with its piston facing downward. The piston of this cylinder 16 is the connecting member 1
It is connected to the cylindrical portion 15 of No. 3. On the other hand, the cover 8 of the six hose examples is provided with a lever 18 for removing the cover 8 and the cover 9. When the lever 18 is rotated to point A as shown in FIG. The cover 9 is locked, and when turned to point B, the lock is released and the cover 8 can be removed from the cover 9. This lever 18 is connected to the cylindrical portion 14 of the connecting member 13 via a connecting arm 19.

As a result, when the connecting member 13 is guided down by the guide portions 11 and 12, the lever 1 is moved through one connecting arm.
8 rotates to point B, and the cover 8°9 is unlocked.

Note that the hose 6 is connected to a supply vA (not shown) of a carrier gas such as nitrogen gas via a supply pipe, and a powdered dephosphorizing agent or the like is stored in the middle of this carrier gas supply pipe. A hopper is installed. Then, the dephosphorizing agent is cut out from the hopper and supplied to the supply pipe, and is transported by the carrier gas and supplied to the lance 1.

Next, the operation of the lance hose attachment/detachment device configured as described above will be explained. First, the lance 1 is fixed to the fixing member 3, and its connecting end 2 is positioned at a predetermined position. Next, the cylinder 7 is driven to lower the support member 5 and the hose 6. Then, the coupler 8 attached to the hose 6 is pressed against the coupler 9 of the lance 1, and both couplers 8,
9 joins.

Furthermore, the piston of the cylinder 16 is moved back and forth, and the lever 1
8 to the lock position of point A and lock it. Also,
Even if the hose 6 is slightly deviated from the position immediately above the lance 1, the position of the cover 8 can be moved slightly by the rubber portion 10, so that both the cover 8 and 9 are reliably connected.

Then, the dephosphorizing agent is supplied as a carrier in nitrogen gas or the like from a hose to a lance, and is sprayed onto the hot metal in the hot metal ladle through the lance. Next, after the preliminary treatment of the hot metal is completed, the carrier gas is stopped.

Thereafter, the piston of the cylinder 16 is advanced to lower the connecting member 13, and the lever 18 is rotated to eight points. As a result, the coverlets 8 and 9 are unlocked. Next, the piston of the cylinder 7 is moved back and forth to raise the hose 6 via the support member 5. This causes the hose 6 to move 11152 away from the lance 1.

In this way, the hose 6 and the lance 1 can be automatically attached and detached.

[Effects of the Invention] According to the present invention, the hose is moved close to the lance by the contact/separation means to connect the detachable couplers, and the lever is rotated by the rotation means to connect the hose coupler and the lance coupler. Unlock and Lance the hose! l
1152, the lance and hose can be automatically attached and detached.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a lance hose attaching/detaching device according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is an enlarged side view of the vicinity of a coupler. 1: Lance, 5: Support member, 6: Lance, 7°16: Cylinder, 8, 9: Coupler. Applicant's agent Patent attorney Takehiko Suzue Figure 2 Figure 1

Claims (1)

[Claims] A fixing means for fixing the connecting end of the lance, a support member for supporting the hose, a moving means for moving the hose supported by the support member toward and away from the connecting end of the lance, and the connecting end of the lance and the hose. a detachable coupler attached to each connecting end of the hose, a lever attached to the coupler on the hose side and locking or unlocking both couplers by its rotation, and a lever attached to the support member and rotating the lever. A lance hose attaching/detaching device characterized by having a moving means.