CN1046489A

CN1046489A - Oxygen lance method for punching and cutting concrete and equipment thereof

Info

Publication number: CN1046489A
Application number: CN 90101359
Authority: CN
Inventors: 李本茂
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-16
Filing date: 1990-03-16
Publication date: 1990-10-31
Also published as: CN1018348B

Abstract

The invention provides a kind of oxygen lance method for punching and cutting concrete and device therefor, it by the dioxygen cutter that is connected with source of oxygen oxygen is transported to the oxygen lance by the shunting of oxygen chamber and the utensil that ignites in, the quilt that is coated with explosion-proof medicament layer and impermeable barrier wear cut member wear cut the position buckle the cover on protective cover, earlier oxygen lance lower end is heated to fired state and aerating oxygen with the utensil that ignites, it is molten for magma and at oxygen pressure effect lower dreg discharging pore-forming or the string hole is disconnected cuts with concrete to make the oxygen lance at high temperature produce strong oxidation, but perforation, fusion hole and the cutting of its extensive use concrete and masonry class A of geometric unitA.

Description

Oxygen lance method for punching and cutting concrete and equipment thereof

The present invention relates to a kind of oxygen lance method for punching and cutting concrete and equipment thereof, it belongs to the building stones manufacture field.

At present in construction and building stones cutting, be the change of construction technology often, the needs of installation and the moulding of building stones must be at concrete or masonry class wallboards, dig hole on basis or its member, or cut away wherein certain part, and require member and base integral not to be damaged simultaneously, present construction method and equipment mainly are by mechanical puncher, percussion drill and handwork hammer pricker cutter are beaten, not only time-consuming taking a lot of work, vibrating noise is big, and very easily cause breaking of member and basis, and up to the present also the end see a kind of more advanced be used for concrete and masonry class wear cut wear segmentation method and equipment thereof.

Purpose of the present invention just is to overcome the above-mentioned shortcoming and defect of existing in prior technology, and the method and the equipment thereof of a usefulness oxygen lance punching and cutting concrete are provided.

The segmentation method of wearing of the present invention is worn to cut to smear anti-knock agent on the parts and be coated with at quilt to spread impermeable barrier, ignite with the utensil that ignites and be heated to burning point in the oxygen lance lower end that will be buckled with protective cover then, in the oxygen lance, make the oxygen lance act under the molten iron effect of the combustion heat and fusion and to be magma with concrete or masonry are molten producing strong oxidizing fire under the high heat again, oxygen pressure effect lower dreg discharging pore-forming or disconnected cutting by dioxygen cutter aerating oxygen.

The equipment that its uses is that the dioxygen cutter that links to each other with source of oxygen and dioxygen are worn to cut and be placed with the oxygen lance of steel bar in the endoporus that the device left end is connected respectively and ignite utensil and protective cover constitute.

Fig. 1 is device therefor annexation of the present invention and dioxygen cutter cut-away view.

Fig. 2 is that the present invention wears segmentation method step block diagram.

Fig. 3 is that level is worn protective cover riding position figure when cutting member.

Fig. 4 upright wear or tilts to wear when cutting protective sheet and lay schematic diagram.

Below in conjunction with accompanying drawing the present invention is described in detail:

The method of operating step of oxygen lance punching and cutting concrete of the present invention is (seeing Fig. 1 and Fig. 2)

(1) preparatory stage: wear and cut the position and smear explosion-proof medicament layer 25 being worn the quilt that cuts member 26, be coated with and spread impermeable barrier 24, in oxygen lance 22 endoporus, pass through and put steel bar 21, put protective sheet 27 being worn to cut position button cover protective cover 23 or on oxygen lance 22, wear; The effect of smearing explosion-proof medicament layer 25 is to prevent that member 26 is subjected to the blistering on top layer, high heat back, being coated with and spreading the effect one of stacking impermeable barrier 24 is to prevent that the magma that melts from trickling everywhere, the 2nd, play insulation effect, promptly preventing to wear the heat that cuts the position scatters and disappears and to wear melting temperatur with raising, passing through the effect of putting steel bar 21 in the oxygen lance 22 that steel pipe constitutes is burn-off rates that resistance subtracts oxygen lance 22, reduce the oxygen pressure that oxygen feeding amount improves oxygen lance 22 endoporus, wear with raising and to cut effect and deslagging ability, button is put and is worn that to put 27 effects of protective cover 23 and metal protection sheet be to prevent to wear that magma flashes when cutting, to guarantee to hold the safety by oxygen lance person.

(2) respectively with source of oxygen 1, oxygen lance 22, the utensil 20 that ignites, couple together with the dioxygen cutter that is connected with flexible pipe 2 and 19, and the oxygenation pressure of source source of the gas 1 adjusted to being worn cut member 26 thickness and wear the pressure that the speed of cutting adapts, general oxygen pressure is 2-10Kg/cm ², preferably adjust to 4-7Kg/cm ²

(3) going to heat oxygen lance 22 lower ends after aerating oxygen and acetylene gas are lighted it in the utensil 20 that ignites then removes 20 to burning point;

(4) aerating oxygen in the oxygen lance 22 that is preheating to burning point; Make its burning and its lower end is held out against to be cut the position, and frequently its front end is done to advance, retreat or half arcuate movement, wear the speed of cutting and obtain needed void shape with quickening;

(5) when a fast after-flame of oxygen lance, can close the oxygen channel of oxygen lance 22 earlier, wear the oxygen lance 22 that is placed with steel bar 21 in the new endoporus in the connection, and constantly repeat the operation of (3) and (4) step until member 26 wear cut finish till.

The operation of (2) step can be exchanged with (1) step, can do (2) step back earlier and do for (1) step, also can be undertaken by the order of (1) (2).Impermeable barrier generally adopts fire clay or loess or the strong material of sandstone class dilution property.

The equipment of cutting (seeing Fig. 1 and Fig. 3) of wearing of this oxygen lance punching and cutting concrete be by a dioxygen cutter and with cutter left end two insertion pipes 3 flexible pipe 19 that is connected and the interior injection that is connected with flexible pipe 19 respectively the oxygen lance 22 that steel bar 21 arranged and ignite utensil 20 and cutter right-hand member insertion pipe 3 on the flexible pipe 2 that is connected with source of oxygen 1 that is connected constitute, worn and cut member 26 and wear and cut position button and be covered with protective cover 23, vertical wear can on oxygen lance 22, wear when cutting member 26 put metal protection sheet 27.

Dioxygen is worn and is cut device right-hand member insertion pipe 3 one ends and flexible pipe 2 connections that are connected with source of oxygen 1, the other end is connected with dividing oxygen chamber 6 by locknut 5, sealing ring 4 is equipped with in its make-up junction, divide 6 left sides, oxygen chamber to insert and be connected with two metal tubes 8, the left end of two metal tubes 8 is connected with valve body 9 respectively and connects with valve body 9 interior two not connected valve openings 18 respectively, valve opening 18 is opened, close by the position and can be screwed into or 15 controls of the valve rod back-outed by threaded stem section 16 thereon, go here and there successively on the valve rod 15 and be with pad 10, sealing ring 11 and pressure pad 12, the three twists by the locknut 13 that is threaded with the valve body upper end and is pressed in the valve body 9 upper end grooves, valve rod 15 upper ends are connected with adjusting knob 14, valve body 9 left sides are connected with two intubate 17, intubate 17 connects by locknut 5 with two insertion pipes that are connected with flexible pipe 19 3 respectively, and wherein flexible pipe 19 other ends are connected with oxygen lance 22.An other flexible pipe 19 other ends are connected with the utensil 20 that ignites.

Oxygen lance 22 is thick walled steel tubes, in order to hinder oxygen pressure and the drag reduction flow of oxygen that subtracts the molten speed of its combustion and improve its endoporus oxygenation deslagging, generally all wears in advance in oxygen lance pipe orifice and puts steel wire or a steel bar 21 littler 0.3 to 1.0 millimeter than internal aperture.For easy to operate, two metal tubes, the 8 outside make-ups at dioxygen cutter middle part are connected with the lever sheath 7 of two halves.

Adopt this oxygen lance punching and cutting concrete Processes and apparatus, it is the embodiment that the Plant of Tianjin Petrochemical Company head factory picks the hole below improving 5 to 20 times that the wearing of comparable existing method of operating and equipment cut work efficiency.

Picking the artificial existing equipment of the bore dia and the degree of depth picks hole recruitment oxygen lance and wears and cut recruitment and improve work efficiency

26 2.17 14 times of 80 * 800 millimeters every hole recruitments

This shows that oxygen lance of the present invention is worn and cut concrete and wear segmentation method and equipment, is a kind of easy and simple to handle, the laborsaving friction that saves time, muting method and apparatus. It not only can carry out level, vertical, tilt to wear and cut, also can be used for perforation, reaming, fusion hole and the cutting of concrete component, be one and have very big popularization that the concrete of value is worn and cut new technology.

Claims

1, a kind of oxygen lance method for punching and cutting concrete, its feature in its operating procedure is:

(1) wears at the quilt of member 26 and cut the position and smear explosion-proof medicament layer 25, be coated with and spread fire clay or loess or sand-lime class impermeable barrier 24, in oxygen lance 22 endoporus, pass through and put steel bar 21, cut wearing of member 26 and cut position button cover protective cover 23 or on oxygen lance 22, wear and put protective sheet 27 being worn;

(2) respectively with source of oxygen 1, oxygen lance 22, the utensil 20 and dioxygen cutter couples together by flexible pipe 2 and 19 and source of oxygen oxygen supply pressure adjusted to and wear cut member 26 thickness and wear the pressure that the speed of cutting adapts of igniting, general oxygen is pressed and is 2-10Kg/cm ², be preferably 4-7Kg/cm ²

(3) going to heat oxygen lance 22 lower ends after aerating oxygen and acetylene are lighted it in the utensil 20 that ignites then removes 20 and it is extinguished to burning point.

(4) logically in the oxygen lance 22 that is preheating to ignition temperature put oxygen, make its burning and in wearing the process of cutting, make the oxygen lance hold out against cutting part and frequently its front end is done to advance, retreat or half arc moves.

During the fast after-flame of (5) oxygen lances 22, can close the oxygen channel of oxygen lance 22 earlier, new passing through is placed with the oxygen lance 22 of steel bar 21 in the connection, the utensil 20 that will ignite ignites again and heats oxygen lance lower end and then remove 20 to ignition temperature it is extinguished, aerating oxygen in the oxygen lance that is preheating to ignition temperature again, and make it in combustion process, make its lower end hold out against cutting part and frequently its front end is done to advance, retreat or half arc moves.So repeat, until wear cut finish till.

2, a kind of oxygen lance method for punching and cutting concrete is characterized in that its operating procedure is:

(1) respectively with source of oxygen 1, oxygen lance 22, the utensil 20 and dioxygen cutter couples together by flexible pipe 2 and 19 and the adjustment of source of oxygen oxygen supply pressure is cut member 26 thickness and worn the speed of the cutting pressure that adapts, general pressure 2-10Kg/cm with wearing ignites ², be preferably 4-7Kg/cm ²;

(2) worn at member 26 and cut the position and smear explosion-proof medicament layer 25, be coated with and spread fire clay or loess or sand-lime class impermeable barrier 24, in oxygen lance 22 endoporus, pass through and put steel bar, cut wearing of member 26 and cut position button cover protective cover 23 or on oxygen lance 22, wear and put protective sheet 27 being worn;

3, a kind of oxygen lance punching and cutting concrete equipment be characterised in that it by a dioxygen cutter and with dioxygen cutter left end insertion pipe 3 flexible pipe 19 that is connected and the endoporus injection that is connected with flexible pipe 19 respectively the oxygen lance 22 that steel bar 21 arranged and ignite utensil 20 and cutter right-hand member insertion pipe 3 on the flexible pipe 2 that is connected with source of oxygen 1 that is connected and buckle to cover on to be worn the protective cover 23 that cuts the position or wear the metal protection sheet 27 that is put on the oxygen lance 22 and constitute.

4, the feature according to right 3 described oxygen lance punching and cutting concrete equipment is:

(1) each insertion pipe 3 of dioxygen cutter two ends all by locknut 5 respectively with oxygen chamber 6 with connect with valve body 9 interior two not connected valve openings, 18 two intubate that connect and that be connected with valve body 9 left sides 17, sealing ring 4 is equipped with in each junction, is connected with two metal tubes 8 between oxygen chamber 6 and the valve body 9;

(2) oxygen lance 22 is that its inside of a thick walled steel tube is passed through and is placed with steel wire or the steel bar 21 littler 0.3 to 1.0 millimeter than its diameter of bore;

(3) dioxygen cutter middle part two metal tubes, 8 outside make-ups are connected with the lever sheath 7 of a two halves make-up.