CN211739888U - Water-cooled oxygen spray gun - Google Patents

Abstract

A water-cooled oxygen spray gun includes a spray gun main body, a water inlet pipe, a water outlet pipe, an oxygen supply pipe and a U-shaped connecting pipe. One end of the water inlet pipe and the water outlet pipe extending into the main body of the spray gun is connected by a U-shaped connecting pipe, the oxygen supply pipe is arranged between the water inlet pipe and the water outlet pipe, and the outer wall of the oxygen supply pipe is close to the water inlet pipe With the outer wall of the water outlet pipe, the other ends of the water inlet pipe, the water outlet pipe and the oxygen supply pipe are detachably connected with the water source pipe, the return pipe and the oxygen source pipe through the connecting head, and several oxygen outlet pipes are opened on the main body of the spray gun. Installation holes, an oxygen outlet pipe is fixedly installed in each of the oxygen outlet pipe installation holes, and the oxygen outlet pipe is communicated with the oxygen supply pipe. The utility model can increase the coverage area of oxygen by opening several oxygen outlet pipes on the main body of the spray gun, and cool the oxygen supply through water pipes to increase the spray distance of oxygen.

Description

A water-cooled oxygen spray gun

technical field

The utility model relates to the technical field of metallurgical spray guns, in particular to a water-cooled oxygen spray gun.

Background technique

Copper tailings are solid wastes produced in the process of copper smelting, and the comprehensive utilization of these copper tailings has always been an important subject of circular economy research. Most of the copper slag is sold as raw materials for building materials, but it is far from the value that copper slag should have. Because copper slag contains a lot of valuable metals, such as iron, zinc, lead, copper and other rare metals. In order to improve the utilization efficiency of copper smelting tailings and recover valuable metals, especially iron elements with a content of 30-40%, most companies currently use the smelting reduction method to treat copper smelting tailings. This process uses kneaded copper smelting tailings as raw materials, and uses coal as reducing agent and heat source to complete the melting and reduction process in a metallurgical furnace, and obtain molten iron through high temperature melting and reduction, effectively recovering iron resources and iron resources in copper slag. Zinc resources. In order to improve the combustion of the metallurgical furnace sufficiently, it is necessary to inject oxygen into the metallurgical furnace through an oxygen lance. However, the traditional oxygen spray gun only supplies oxygen to the metallurgical furnace through an external oxygen source through a feeding pipeline. This oxygen supply method has the following problems: 1) There is only one spray port, the oxygen spray is linear, and the oxygen spray area is not enough; 2) The entire oxygen spray device has no cooling device. When the liquid oxygen passes through the feeding pipeline into the metallurgical furnace, the vaporization degree is high. When it reaches the spray port, most of it is gaseous oxygen, and the spray distance is short.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a water-cooled oxygen spray gun, and solve the problem that the oxygen supply device in the prior art has only one spray port, the oxygen spray is linear, and the oxygen spray area is not enough, In addition, the oxygen spray device is not equipped with a cooling device. When the liquid oxygen is passed into the metallurgical furnace through the feeding pipeline, the vaporization degree is high and the spray distance is short.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

A water-cooled oxygen spray gun includes a spray gun main body, a water inlet pipe, a water outlet pipe, an oxygen supply pipe and a U-shaped connecting pipe. One end of the water inlet pipe and the water outlet pipe extending into the main body of the spray gun is connected by a U-shaped connecting pipe, the oxygen supply pipe is arranged between the water inlet pipe and the water outlet pipe, and the outer wall of the oxygen supply pipe is close to the water inlet pipe With the outer wall of the water outlet pipe, the other ends of the water inlet pipe, the water outlet pipe and the oxygen supply pipe are detachably connected with the water source pipe, the return pipe and the oxygen source pipe through the connector, and several oxygen outlet pipes are opened on the main body of the spray gun. Installation holes, an oxygen outlet pipe is fixedly installed in each of the oxygen outlet pipe installation holes, and the oxygen outlet pipes are all communicated with the oxygen supply pipes.

Further, one end of the water inlet pipe and the oxygen supply pipe extending out of the main body of the spray gun is provided with a valve.

Further, the U-shaped connecting pipe connects the water inlet pipe and the water outlet pipe across the outer wall of the oxygen supply pipe.

Further, the main body of the spray gun, the water inlet pipe, the water outlet pipe, the oxygen supply pipe, the U-shaped connecting pipe and the oxygen outlet pipe are all made of high temperature resistant stainless materials.

The utility model can supply oxygen to the metallurgical furnace through the oxygen supply pipeline externally connected to the oxygen source, and the main body of the spray gun is provided with several oxygen outlet pipelines which are connected with the oxygen supply pipeline, so that the spray area of oxygen is enlarged, so that the spray can be more comprehensively sprayed. It is poured into the metallurgical furnace, and at the same time, the water source is connected to the water inlet pipe, and the ice water is introduced into the water inlet pipe, and the outer wall of the water inlet pipe is closely attached to the outer wall of the oxygen supply pipe. When the heat transferred from the inside, it can be partially absorbed to reduce the degree of vaporization of liquid oxygen in the oxygen supply pipeline, so that the content of liquid oxygen at the spray port increases, thereby increasing the spray distance of oxygen and improving the coverage area of oxygen supply. , thereby improving the combustion efficiency in the metallurgical furnace.

Description of drawings

Fig. 1 is the internal structure schematic diagram of the present utility model;

Fig. 2 is the appearance structure schematic diagram of the utility model;

In the picture: 1. Main body of spray gun, 2. Water inlet pipe, 3. Water outlet pipe, 4. Oxygen supply pipe, 5. U-shaped connecting pipe, 6. Connector, 7. Installation hole of oxygen outlet pipe, 8. Oxygen outlet pipe.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1-2, a water-cooled oxygen spray gun includes a spray gun body 1, a water inlet pipe 2, a water outlet pipe 3, an oxygen supply pipe 4 and a U-shaped connecting pipe 5. The water inlet pipe 2, the water outlet pipe 3 and the supply pipe One end of the oxygen pipeline 4 is connected into the main body 1 of the spray gun, the one end of the water inlet pipe 2 and the water outlet pipe 3 extending into the main body 1 of the spray gun is connected by a U-shaped connecting pipe 5, and the oxygen supply pipe 4 is arranged in the Between the water inlet pipe 2 and the water outlet pipe 3, the outer wall of the oxygen supply pipe 4 is in close contact with the outer wall of the water inlet pipe 2 and the water outlet pipe 3, and the other ends of the water inlet pipe 2, the water outlet pipe 3 and the oxygen supply pipe 4 They are all detachably connected with the water source pipeline, the return pipeline and the oxygen source pipeline through the connecting head 6. The spray gun main body 1 is provided with several oxygen outlet pipeline installation holes 7, and each of the oxygen outlet pipeline installation holes 7 is fixedly installed. There is an oxygen outlet pipe 8, and the oxygen outlet pipe 8 is communicated with the oxygen supply pipe 4; the water inlet pipe 2 and the oxygen supply pipe 4 are provided with a valve at one end of the spray gun main body 1; the The U-shaped connecting pipe 5 connects the water inlet pipe 2 and the water outlet pipe 3 across the outer wall of the oxygen supply pipe 4; the spray gun main body 1, the water inlet pipe 2, the water outlet pipe 3, the oxygen supply pipe 4, the U-shaped connecting pipe 5 and the outlet pipe The oxygen pipes 8 are all made of high temperature resistant stainless materials.

The utility model can connect an oxygen source through the oxygen supply pipeline 4, and extend one end of the lance body 1 into the top of the metallurgical furnace fixed to the metallurgical furnace to supply oxygen to the metallurgical furnace. Pipe 8 increases the spray area of oxygen, so that it can be sprayed into the metallurgical furnace more comprehensively. The outer wall of the oxygen supply pipeline 4 is close to each other. When the oxygen supply pipeline 4 supplies oxygen, the ice water can partially absorb the heat transferred from the metallurgical furnace, thereby reducing the degree of vaporization of the liquid oxygen in the oxygen supply pipeline 4, so that the The content of liquid oxygen at the oxygen outlet pipe 8 increases, thereby increasing the spray distance of oxygen, increasing the coverage area of oxygen supply, and thus improving the combustion efficiency in the metallurgical furnace.

The above embodiment is an illustration of the present invention, not a limitation of the present invention. It can be understood that these embodiments can be changed, modified, replaced and modified without departing from the principle and spirit of the present The scope of protection of the new type is defined by the appended claims and their equivalents.

Claims (4)

1. A water-cooled oxygen spray gun, characterized in that it comprises a spray gun main body (1), a water inlet pipe (2), a water outlet pipe (3), an oxygen supply pipe (4) and a U-shaped connecting pipe (5). One end of the water pipe (2), the water outlet pipe (3) and the oxygen supply pipe (4) all lead into the spray gun body (1), and the water inlet pipe (2) and the water outlet pipe (3) extend into the spray gun body One end of (1) is connected by a U-shaped connecting pipe (5). The oxygen supply pipe (4) is arranged between the water inlet pipe (2) and the water outlet pipe (3). The outer wall is in close contact with the outer walls of the water inlet pipe (2) and the water outlet pipe (3), and the other ends of the water inlet pipe (2), the water outlet pipe (3) and the oxygen supply pipe (4) are connected to each other through the connecting head (6). The water source pipeline, the return pipeline and the oxygen source pipeline are detachably connected, the spray gun main body (1) is provided with several oxygen outlet pipeline installation holes (7), and each of the oxygen outlet pipeline installation holes (7) is fixedly installed There is an oxygen outlet pipeline (8), and the oxygen outlet pipelines (8) are all communicated with the oxygen supply pipeline (4). 2. A water-cooled oxygen spray gun according to claim 1, characterized in that a valve is provided at one end of the water inlet pipe (2) and the oxygen supply pipe (4) extending out of the spray gun main body (1). . 3. A water-cooled oxygen spray gun according to claim 1, characterized in that, the U-shaped connecting pipe (5) connects the water inlet pipe (2) with the outer wall of the oxygen supply pipe (4) across the outer wall of the oxygen supply pipe (4). Outlet pipe (3). 4. A water-cooled oxygen spray gun according to claim 1, characterized in that the spray gun main body (1), the water inlet pipe (2), the water outlet pipe (3), the oxygen supply pipe (4), the U-shaped connecting pipe ( 5) and the oxygen outlet pipe (8) are made of high temperature resistant stainless materials.

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