CN217536067U - Forced water-cooling hot air spray gun - Google Patents

Abstract

The utility model provides a forced water-cooling hot air spray gun, the electric iron comprises an iron body, the one end of the rifle body is connected with the composite flange, and the other end is connected with the rifle head, internal water inlet channel and the play water runner of being provided with of rifle, be provided with the intake antrum and go out the water cavity in the composite flange, be provided with the second water-stop sheet in the intake antrum, the second water-stop sheet separates the intake antrum for side by side first cavity and second cavity, be provided with the mouth of permeating water on the second water-stop sheet, be provided with first inlet tube and second inlet tube on the barrel, first inlet tube and first cavity intercommunication, second inlet tube and second cavity intercommunication, second cavity and water inlet channel intercommunication, go out water cavity and play water runner intercommunication. The cooling effect of the inner wall of the hot air spray gun and the combined flange is improved, the whole service life is longer, the structure is simple, the rigidity is good, the deformation is avoided after the long-time use, and the cooling effect is better.

Description

Forced water-cooling hot air spray gun

Technical Field

The utility model relates to the technical field of metallurgy, specifically speaking relates to a provide hot-blast water-cooling hot air spray gun of forced oxygen boosting in for smelting furnace.

Background

With the development of metallurgical industry and the demand for environmental protection and energy saving, various smelting technologies, such as smelting reduction iron making technology, have been developed in recent years.

The smelting reduction iron-making technology can realize continuous spraying of mineral powder into a smelting furnace, can continuously output molten iron, and needs to continuously provide high-temperature oxygen-enriched hot air for the interior of the smelting furnace from the outside in the whole smelting reduction iron-making process. The hot air spray gun is one of key equipment of a smelting reduction iron-making technology and is used for continuously providing high-temperature oxygen-enriched hot air for the interior of a smelting furnace.

Whether the hot blast spray gun can work stably for a long time directly determines whether a smelting reduction iron-making system can produce continuously and stably, and the hot blast spray gun needs to have the characteristics of high temperature resistance, corrosion resistance, scouring resistance, good cooling effect and long service life.

Therefore, it is urgently needed to provide a hot air spray gun which can be stably used for a long time under the severe working environment of a smelting furnace, and has good cooling effect and long service life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the weak point of above-mentioned conventional art, provide a forced water-cooling hot air spray gun.

The purpose of the utility model is achieved through the following technical measures: the utility model provides a forced water-cooling hot air spray gun, includes the rifle body, the one end of the rifle body is connected with the combination flange, and the other end is connected with the rifle head, the internal inlet channel and the outlet channel that are provided with of rifle, its characterized in that: the water inlet cavity and the water outlet cavity are arranged in the combined flange, a second water-stop plate is arranged in the water inlet cavity, the water inlet cavity is divided into a first cavity and a second cavity which are parallel to each other by the second water-stop plate, a water permeable port is formed in the second water-stop plate, a first water inlet pipe and a second water inlet pipe are arranged on the barrel, the first water inlet pipe is communicated with the first cavity, the second water inlet pipe is communicated with the second cavity, the second cavity is communicated with the water inlet flow channel, and the water outlet cavity is communicated with the water outlet flow channel.

As a preferred scheme, a third water-stop sheet is arranged in the first cavity, the third water-stop sheet is arranged along the radial direction, and the third water-stop sheet is arranged between the first water inlet pipe and the water permeable port.

As a preferred scheme, a fourth water-stop sheet is arranged in the second cavity, the fourth water-stop sheet is arranged along the radial direction, and the fourth water-stop sheet is positioned on one side of the second water inlet pipe.

As a preferred scheme, the barrel is further provided with a water outlet pipe, the water outlet pipe is communicated with the water outlet cavity, a fifth water stop sheet is arranged in the water outlet cavity, the fifth water stop sheet is arranged along the radial direction, and the fifth water stop sheet is arranged on one side of the water outlet pipe.

As a preferred scheme, the combination flange is including keeping away from the first connecting flange of the rifle body and being close to rifle body second connecting flange and being located the barrel between first connecting flange and the second connecting flange, form the cavity that is used for business turn over water between first connecting flange, second connecting flange and the barrel, be provided with first water-stop sheet along circumference in the cavity, first water-stop sheet divide into intake antrum and play water cavity with the cavity.

Preferably, the gun body comprises an inner tube positioned inside, an outer tube positioned outside and a middle tube positioned between the inner tube and the outer tube, wherein a water inlet flow passage for water inlet is formed between the inner tube and the middle tube, and a water outlet flow passage for water outlet is formed between the outer tube and the middle tube.

Preferably, one end of the outer pipe close to the combination flange is fixedly connected with the second connecting flange.

As a preferred scheme, a first end is arranged at one end, close to the combined flange, of the inner pipe, wear-resistant materials are coated on the outer circular surface of the first end and the inner hole of the first connecting flange in a melting mode, the first end can freely move relative to the combined flange in the axial direction, and a first sealing ring is mounted on the outer circular surface of the first end.

As an optimal scheme, the one end that well pipe is close to the composite flange is provided with the second end, the disc outside the second end and the cladding of first water-stop sheet hole have wear-resisting material, the second end can free activity for first water-stop sheet in the axial, the second sealing washer is installed to the one side that first water-stop sheet is close to the second end, first water-stop sheet fixed mounting is on the inner wall of barrel.

As a preferable scheme, a first spiral rib is arranged in the water inlet flow passage, the first spiral rib divides the water inlet flow passage into spiral shapes, a second spiral rib is arranged in the water outlet flow passage, and the second spiral rib divides the water outlet flow passage into spiral shapes.

Owing to adopted above-mentioned technical scheme, compared with prior art, the utility model has the advantages that: the water is fed through the first cavity and the second cavity, the cooling effect of the combined flange and the left end of the gun body can be effectively improved, the third water-stop plate is arranged in the first cavity, the cooling water can enter the second cavity from the water permeable port after rotating for a circle in the first cavity, the fourth water-stop plate is arranged in the second cavity, the cooling water enters the second cavity from the second water inlet pipe and enters the water inlet flow channel together with the cooling water entering from the first cavity after rotating and flowing under the action of the fourth water-stop plate, thus the cooling effect of the combined flange and the left end of the inner pipe is effectively improved, the fifth water-stop plate is arranged in the water outlet cavity, the cooling water still flows out from the water outlet pipe in a spiral shape in the water outlet cavity, the cooling effect of the inner wall of the hot air spray gun and the combined flange is also greatly improved, the whole service life is longer, the structure is simple, the rigidity is good, the deformation is avoided after long-time use, and the cooling effect is better.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 isbase:Sub>A schematic view ofbase:Sub>A cross-sectional structurebase:Sub>A-base:Sub>A ofbase:Sub>A forced water-cooling hot air spray gun according to the present invention.

Fig. 2 is a schematic view of a cross-sectional structure B-B of a forced water-cooling hot air spray gun according to the present invention.

Fig. 3 is a schematic view of a C-C sectional structure of the forced water-cooling hot air spray gun of the present invention.

Fig. 4 is a schematic diagram of a water outlet cavity structure in a D-D section view of a forced water-cooling hot air spray gun of the present invention.

FIG. 5 is a schematic view of the expanded structure of the slag nail at the position E of the forced water-cooling hot-air spray gun of the present invention.

Fig. 6 is a left side view schematic structure diagram of the forced water-cooling hot air spray gun of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b): as shown in fig. 1-6, a forced water-cooling hot air spray gun comprises a gun body 1, wherein one end of the gun body 1 is connected with a combined flange 2, the other end of the gun body 1 is connected with a gun head 3, the gun body 1 comprises an inner tube 4 positioned inside, an outer tube 5 positioned outside and a middle tube 6 positioned between the inner tube 4 and the outer tube 5, a water inlet flow passage 7 for water inlet is formed between the inner tube 4 and the middle tube 6, and a water outlet flow passage 8 for water outlet is formed between the outer tube 5 and the middle tube 6.

The combination flange 2 comprises a first connecting flange 9 and a second connecting flange 10 at two ends and a cylinder body 11 between the first connecting flange 9 and the second connecting flange 10, and a cavity for water inlet and outlet is formed among the first connecting flange 9, the second connecting flange 10 and the cylinder body 11. In this embodiment, as shown in fig. 1, the first connecting flange 9 is located on the side away from the gun body 1, and the second connecting flange 10 is located on the side close to the gun body 1.

As shown in fig. 1, one end of the outer pipe 5 close to the combination flange 2 is fixedly connected with the second connection flange 10, one end of the inner pipe 4 close to the combination flange 2 is provided with a first end 12, the first end 12 is connected with the first connection flange 9, a first water-stop plate 13 is arranged in the cavity along the circumferential direction, the first water-stop plate 13 divides the cavity into a water inlet cavity and a water outlet cavity 18, one end of the middle pipe 6 close to the combination flange 2 is provided with a second end 14, the second end 14 is connected with the middle pipe 6, the water inlet cavity is communicated with the water inlet flow passage 7, and the water outlet cavity 18 is communicated with the water outlet flow passage 8.

As shown in fig. 1-2, a second water-stop plate 15 is circumferentially arranged in the water inlet cavity, the water inlet cavity is divided into a first cavity 16 and a second cavity 17 which are axially arranged side by the second water-stop plate 15, a water-permeable port 19 is arranged on the second water-stop plate 15, the first cavity 16 is communicated with the second cavity 17 through the water-permeable port 19, a first water inlet pipe 20 and a second water inlet pipe 21 are arranged on the cylinder 11, the first water inlet pipe 20 is communicated with the first cavity 16, the second water inlet pipe 21 is communicated with the second cavity 17, a third water-stop plate 22 is arranged in the first cavity 16, the third water-stop plate 22 is radially arranged, the third water-stop plate 22 is arranged between the first water inlet pipe 20 and the water-permeable port 19, the second cavity 17 is communicated with the water inlet channel 7, the first water inlet pipe 20 and the second water inlet pipe 21 are both used for feeding cooling water, the cooling water fed from the first water inlet pipe 20 enters the first cavity 16, the cooling water enters the second cavity 17 through the water-stop plate 19 after the first cavity 16 under the action of the third water-stop plate 22, and the inner pipe rotates the left flange of the inner pipe 4.

As shown in fig. 3, a fourth water stop plate 23 is disposed in the second cavity 17, the fourth water stop plate 23 is disposed along a radial direction, the fourth water stop plate 23 is located at one side of the second water inlet pipe 21, and the cooling water enters the second cavity 17 from the second water inlet pipe 21, flows rotationally under the action of the fourth water stop plate 23, and then enters the water inlet channel 7 together with the cooling water entering from the first cavity 16. The cooling effect of the combined flange 2 and the left end of the inner pipe 4 is effectively improved.

As shown in fig. 1 and 4, the barrel 11 is further provided with a water outlet pipe 24, the water outlet pipe 24 is communicated with the water outlet cavity 18, a fifth water stop plate 25 is arranged in the water outlet cavity 18, the fifth water stop plate 25 is arranged in the radial direction, the fifth water stop plate 25 is arranged on one side of the water outlet pipe 24, and after cooling water enters the water outlet cavity 18 from the water outlet flow channel 8, due to the inertia of the cooling water and the effect of the fifth water stop plate 25, the cooling water still flows in a spiral accelerated manner in the water outlet cavity 18 and then flows out from the water outlet pipe 24 in an accelerated manner. The cooling effect of the inner wall of the hot air spray gun and the combined flange 2 is also greatly improved. In this embodiment, two water outlet pipes 24 are arranged side by side, or one water outlet pipe may be arranged, or another number may be arranged according to the situation.

As shown in fig. 1, a first spiral rib 26 is provided in the water inlet flow path 7, and the first spiral rib 26 divides the water inlet flow path 7 into spiral shapes. The second spiral rib 27 is arranged in the water outlet flow passage 8, and the second spiral rib 27 divides the water outlet flow passage 8 into spiral shapes. After the cooling water enters the water inlet flow channel 7, the cooling water flows in the water inlet flow channel 7 in a spiral shape in an accelerating manner under the action of the first spiral ribs 26, and the cooling effect of the inner wall of the hot air spray gun is greatly improved. Cold water enters the gun head 3 from the right end of the water inlet flow channel 7 to circulate and then flows out to enter the water outlet flow channel 8, and due to the action of the second spiral ribs 27, the cooling water in the water outlet flow channel 8 forms spiral shape to flow in an accelerating manner, so that the cooling effect of the outer wall of the hot air spray gun is greatly improved.

The outer circular surface of the first end head 12 and the inner hole of the first connecting flange 9 are coated with wear-resistant materials in a melting mode, the first end head 12 can freely move relative to the combined flange 2 in the axial direction, a first sealing ring 28 is installed on the outer circular surface of the first end head 12, and the first sealing ring 28 guarantees the sealing performance of the first cavity 16. The second water stop sheet 15 is fixedly connected with the inner wall of the cylinder 11 and is only in contact with the inner tube 4, so a fine gap is formed between the second water stop sheet 15 and the inner tube 4, but the first cavity 16 and the second cavity 17 on two sides of the second water stop sheet 15 are water inlet cavities, and slight water seepage is allowed at the gap. The outer circle surface of the second end 14 and the inner hole of the first water stop plate 13 are coated with wear-resistant materials in a melting mode, the second end 14 can move freely relative to the first water stop plate 13 in the axial direction, a second sealing ring 29 is installed on one surface, close to the second end 14, of the first water stop plate 13, the second sealing ring 29 guarantees the sealing performance of the second cavity 17 and the water outlet cavity 18, and the first water stop plate 13 is fixedly installed on the inner wall of the barrel 11. The wear-resistant material can reduce the abrasion loss caused by free movement due to expansion with heat and contraction with cold, and the service life of the hot air spray gun is prolonged. When using, well pipe 5 expend with heat and contract with cold, well pipe 6 can the free activity along first water-stop sheet 13, and first end 12 can the free activity on first connecting flange 9. Prevent that the rifle body 1 expends with heat and contracts with cold and produce stress and destroy, effectively improve this hot-blast spray gun's life.

As shown in fig. 1 and 5, the outer circumferential surface of the part of the outer tube 5 close to the lance tip 3 is provided with slag adhering nails 30. In the actual use process, the outer circle surface of the right end part of the outer pipe 5 can be condensed with a layer of slag shell, so that the hot air spray gun is better protected from being burnt out, the erosion and corrosion of slag are reduced, and the service life of the hot air spray gun is prolonged.

The inner tube 4 is inside still to be provided with resistant material 31, and resistant material 31's effect firstly guarantees that hot-blast in transportation process temperature is not cooled by the cooling water in the rifle body 1, secondly protects rifle body 1 inner wall not erodeed by hot-blast air current and corrodes the oxidation too fast.

The refractory 31 includes a first straight cylindrical section 32, a second straight cylindrical section 33, and a tapered section 34 connecting the first straight cylindrical section 32 and the second straight cylindrical section 33. The inner bore of the first straight cylinder section 32 is larger than the inner bore of the second straight cylinder section 33. The inner bore of the first straight cylinder section 32 is larger than the inner bore of the second straight cylinder section 33. The second straight cylinder section 33 is used as an accelerating section of hot air, and ensures that the hot air is accelerated to be sprayed into the smelting furnace to improve the smelting speed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a forced water-cooling hot air spray gun, includes the rifle body, the one end of the rifle body is connected with the combination flange, and the other end is connected with the rifle head, the internal inlet channel and the outlet channel that are provided with of rifle, its characterized in that: the water-permeable combined flange is characterized in that a water inlet cavity and a water outlet cavity are arranged in the combined flange, a second water-stop sheet is arranged in the water inlet cavity, the second water-stop sheet divides the water inlet cavity into a first cavity and a second cavity which are arranged side by side, a water permeable port is arranged on the second water-stop sheet, the combined flange comprises a first connecting flange far away from the gun body, a second connecting flange close to the gun body and a barrel body positioned between the first connecting flange and the second connecting flange, a first water inlet pipe and a second water inlet pipe are arranged on the barrel body, the first water inlet pipe is communicated with the first cavity, the second water inlet pipe is communicated with the second cavity, the second cavity is communicated with a water inlet flow channel, the water outlet cavity is communicated with a water outlet flow channel, a third water-stop sheet is arranged in the first cavity, the third water-stop sheet is arranged in the radial direction between the first water inlet pipe and the water permeable port, a fourth water-stop sheet is arranged in the second cavity, the fourth water-stop sheet is arranged in the radial direction, the fourth water-stop sheet is positioned on one side of the second water inlet pipe, a water outlet pipe is arranged on one side of the barrel body, and is communicated with the water outlet pipe.

2. The forced water-cooled hot air injection lance of claim 1 wherein: a cavity for water inlet and outlet is formed among the first connecting flange, the second connecting flange and the barrel, a first water-stop sheet is arranged in the cavity along the circumferential direction, and the cavity is divided into a water inlet cavity and a water outlet cavity by the first water-stop sheet.

3. A forced water-cooled hot air lance as claimed in claim 2, wherein: the rifle body is including being located inside inner tube, being located outside outer tube and being located the well pipe between inner tube and the outer tube, form the water inlet runner that is used for into water between inner tube and the well pipe, form the play water runner that is used for going out water between outer tube and the well pipe.

4. A forced water-cooled hot air injection lance according to claim 3 wherein: and one end of the outer pipe close to the combined flange is fixedly connected with the second connecting flange.

5. The forced water-cooled hot air injection lance of claim 4 wherein: the inner tube is close to the one end of combination flange and is provided with first end, the hole cladding of first end excircle face and first connecting flange has wear-resisting material, first end can freely move about for combination flange in the axial, install first sealing washer on the first end excircle face.

6. A forced water-cooled hot air lance as claimed in claim 5, wherein: the one end that well pipe is close to the combination flange is provided with the second end, the outer disc of second end and first water-stop sheet hole melt and cover have wear-resisting material, the second end can freely move about for first water-stop sheet in the axial, the second sealing washer is installed to the one side that first water-stop sheet is close to the second end, first water-stop sheet fixed mounting is on the inner wall of barrel.

7. A forced water-cooled hot air injection lance according to any one of claims 1 to 6 wherein: the water inlet channel is internally provided with a first spiral rib which divides the water inlet channel into a spiral shape, the water outlet channel is internally provided with a second spiral rib which divides the water outlet channel into a spiral shape.

Images