CN205241719U - Mud mechanism is beaten to clay gun of cooling pattern - Google Patents

Abstract

The utility model discloses a cooling type mud blasting mechanism, which comprises a nozzle, a conical intermediate body, a mud cylinder, a mud cylinder and a stroke indicator. The oil cylinders are connected with each other, a conical intermediate body is set between the gun nozzle and the mud cylinder, and the stroke indicator is set at the rear end of the mud blowing mechanism. The outside of the mud cylinder and the mud blowing cylinder are equipped with a heat insulation structure, and the inside of the outer wall is equipped with a water cooling structure. , The mud tank and the mud-beating oil tank are connected by a water-cooling pipe, and the cylinder bodies of the mud tank and the mud-beating oil tank are provided with a first water inlet, a second water inlet and a water outlet. The mud cannon mud-beating mechanism of the utility model adopts the cooling type of water cooling combined with heat insulation, which not only avoids the pipe burst or leakage due to thermal expansion and contraction when the water pipe is outside, but also provides effective cooling protection for the mud-beating mechanism, improving the The working effect of the mud gun and the service life of the mud gun.

Description

A cooling type mud cannon mud-beating mechanism

technical field

The utility model relates to a mud cannon, a mechanical device used to block a large-scale blast furnace taphole, in particular to a cooling type mud cannon mud-beating mechanism.

Background technique

The sliming mechanism is one of the most important equipments in blast furnace production. Its function is to block the taphole when the blast furnace molten iron is drained, so that the blast furnace enters the next cycle operation. Due to the high temperature in front of the ironmaking blast furnace and the poor working environment, the dredging mechanism works at high temperature for a long time, resulting in a short service life of the dredging mechanism. In the production of blast furnaces, it is generally necessary to install protective devices to avoid heat radiation for the mud cylinders and mud pumping cylinders.

At present, there are two types of protection for the mud-beating mechanism: one is to fill the middle and lower parts of the outer side with insulating materials; the other is to use water tanks or serpentine pipes for water cooling in the middle and lower parts of the outer side. The former keeps the heat out of the mud tank through the heat insulation material, and the latter takes the heat away through the partial water cooling. However, the heat insulation type has the disadvantage of limited heat resistance; the shortcoming of the local water cooling type is that the water tank or water pipe is prone to thermal deformation and water leakage after being heated.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a mud cannon mud-beating mechanism with good cooling effect, which can avoid the bursting and leakage of water-cooled pipes or water tanks, and can be applied to the cooling type of various mud cannons.

In order to achieve the above object, the utility model adopts the following technical solutions to achieve:

A cooling-type mud gun mud-beating mechanism, including a nozzle, a conical intermediate body, a mud cylinder, a mud-beating oil cylinder and a stroke indicator, the nozzle is arranged at the front end of the mud-beating mechanism, the mud cylinder and mud The oil cylinders are connected to each other, a tapered intermediate body is provided between the nozzle and the mud cylinder, the stroke indicator is arranged at the rear end of the mud-beating mechanism, and the outer side of the mud cylinder and the mud-beating oil cylinder is provided with a heat insulation structure, A water-cooling structure is provided inside the outer wall, and the mud tank and the mud-beating oil tank are connected through water-cooling pipes, and the cylinder body of the mud tank and the mud-beating oil tank is provided with a first water inlet, a second water inlet and a water outlet.

Further, the water-cooling structure is composed of a mud cylinder and a cylinder body provided with an annular groove on the outside of the mud-beating oil cylinder, and an annular cover plate connected with the annular groove.

Further, the ring groove is welded to the ring cover plate.

Further, the heat insulation structure is arranged on the outer middle and lower sides of the mud cylinder and the mud making oil cylinder.

Further, the heat insulation structure is composed of a heat insulation box tank and a heat insulation material filled therein.

Further, the groove of the heat insulation box is in a semi-circular shape.

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

The mud cannon mud-beating mechanism of the utility model adopts the cooling type of water cooling combined with heat insulation. By setting a semi-circular heat insulation structure on the outer middle and lower side of the mud cylinder and mud pumping cylinder, part of the heat can be effectively blocked; by setting a water-cooling structure inside the outer wall, it not only avoids bursting or leakage due to thermal expansion and contraction of the water pipe when it is outside The situation, and through the cooling of the circulating water in the water-cooled ring groove, the working effect of the mud gun and the service life of the mud gun are effectively improved, which meets the requirements of the casthouse environment and can better meet the requirements of the blast furnace ironmaking production process. Further, the utility model is easy to be modified and designed to be a mud cannon mud-beating mechanism suitable for blocking various types of blast furnace tapholes.

Description of drawings

Fig. 1 is the location diagram of the utility model in the mud cannon mud-beating mechanism;

Fig. 2 is a schematic diagram of the mud cylinder structure;

Fig. 3 is a sectional view of Fig. 2D-D section;

In the figure, 1 nozzle, 2 conical intermediate body, 3 mud cylinder, 4 mud pumping cylinder, 5 stroke indicator, 6 heat insulation box groove, 7 first water inlet, 8 second water inlet, 9 water outlet, 10 Ring cover.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Referring to Fig. 1 to Fig. 3, the mud cannon of the practical cooling type comprises a nozzle 1, a conical intermediate body 2, a mud cylinder 3, a mud cylinder 4 and a stroke indicator 5, and the nozzle 1 is located at the mud At the front end of the mechanism, the mud cylinder 3 and the mud cylinder 4 are connected to each other. A conical intermediate body 2 is arranged between the gun nozzle 1 and the mud cylinder 3. The outer side of the mud cylinder 4 is provided with a heat insulation structure, and the inside of the outer wall is provided with a water cooling structure. The mud cylinder 3 and the mud cylinder 4 are connected by a water cooling pipe, and the cylinder body of the mud cylinder 3 and the mud cylinder 4 is provided with a first water inlet. 7. The second water inlet 8 and the water outlet 9.

The water-cooling structure is composed of a mud cylinder 3 and a cylinder body with a ring groove on the outside of the mud cylinder 4 and an annular cover plate 10 connected to the ring groove. The ring groove and the ring cover plate 10 are welded.

The heat insulation structure is arranged on the outer middle and lower sides of the mud cylinder 3 and the mud beating oil cylinder 4, and is composed of a semi-circular heat insulation box groove 6 and heat insulation materials filled inside.

The utility model provides a cooling type mud cannon mud beating mechanism. The mud cannon mud beating mechanism adopts the cooling mode of water cooling combined with heat insulation. By setting a semi-circular heat insulation structure on the outer middle and lower side of the mud cylinder and mud pumping cylinder, part of the heat can be effectively blocked; by setting a water-cooling structure inside the outer wall, it not only avoids bursting or leakage due to thermal expansion and contraction of the water pipe when it is outside The situation, and through the cooling of the circulating water in the water-cooled ring groove, the working effect of the mud gun and the service life of the mud gun are effectively improved, which meets the requirements of the casthouse environment and can better meet the requirements of the blast furnace ironmaking production process.

Claims (6)

1. a clay gun clay extruded mechanism for cooling pattern, comprises big gun mouth (1), taper intermediate (2), mudCylinder (3), beat mud oil cylinder (4) and travel indicator (5), described big gun mouth (1) is located at clay extruded mechanismFront end, described mud cylinder (3) and play mud oil cylinder (4) and interconnect, described big gun mouth (1) and mud cylinder (3)Between be provided with taper intermediate (2), described travel indicator (5) is located at the rear end of clay extruded mechanism, its spyLevy and be: described mud cylinder (3) and the outside of playing mud oil cylinder (4) are provided with heat insulation structural, and outer pars intramuralis is establishedHave water-cooling structure, described mud cylinder (3) with play mud oil cylinder (4) and be connected by water cooling tube, described mud cylinder(3) and the cylinder body of playing mud oil cylinder (4) be provided with the first water inlet (7), the second water inlet (8) and go outThe mouth of a river (9).

2. the clay gun clay extruded mechanism of cooling pattern according to claim 1, is characterized in that: described inWater-cooling structure by mud cylinder (3) and beat mud oil cylinder (4) arranged outside have the cylinder body of annular groove and with described annular grooveAnnular cover plate (10) composition being connected.

3. the clay gun clay extruded mechanism of cooling pattern according to claim 2, is characterized in that: described inAnnular groove and annular cover plate (10) are and are welded to connect.

4. the clay gun clay extruded mechanism of cooling pattern according to claim 1, is characterized in that: described inHeat insulation structural is located at described mud cylinder (3) and is beaten downside in the outside of mud oil cylinder (4).

5. according to the clay gun clay extruded mechanism of the cooling pattern described in claim 1 or 4, it is characterized in that:Described heat insulation structural is made up of the inner heat-barrier material of filling of hot box groove (6) and its.

6. the clay gun clay extruded mechanism of cooling pattern according to claim 5, is characterized in that: described inHot box groove (6) is semi-toroidal shape.