Bottom blowing furnace smelting combustion-supporting device

Abstract

The utility model relates to the technical field of bottom blowing furnaces, in particular to a bottom blowing furnace smelting combustion-supporting device which comprises a combustion improver box and an oxygen lance body, an observation window is arranged on the front end face of the combustion improver box, containing scale marks are arranged on the observation window, and the oxygen lance body comprises an installation box, an air inlet pipe and a blowing pipe. The air inlet pipe is installed at one side end of the installation box and communicates with the installation box, the blowing pipe is installed at the side end, away from the air inlet pipe, of the installation box and communicates with the installation box, a stop valve is arranged on the blowing pipe, and an installation pipe is installed on the inner wall of the upper end of the installation box. And the lower end of the mounting pipe is provided with atomizing nozzles which are symmetrically distributed, the upper end of the combustion improver box is provided with a high-pressure pump, and the high-pressure pump is provided with a conveying pipe and a material pumping pipe. The combustion-supporting device has the advantages that the combustion-supporting agent can be added into the blown oxygen, so that combustion-supporting is carried out on fuel, and the fuel efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottom blowing furnaces, in particular to a smelting combustion-supporting device for a bottom blowing furnace. Background Art

[0002] Bottom blowing furnace is an advanced smelting equipment. Its main feature is to use high-temperature bottom blowing hot air to burn and heat the materials in the furnace. Oxygen bottom blowing technology has significant advantages such as high efficiency, energy saving and environmental protection. With the advancement of oxygen production technology, it has been widely used in the world's steel industry, greatly improving the overall technical level of steel smelting.

[0003] When the fuel burns in the bottom blowing furnace, an oxygen gun needs to be used to blow oxygen into the furnace, so that the fuel burns under the action of oxygen. However, there is no combustion-supporting function. When the fuel burns, problems such as slow combustion speed and low efficiency are likely to occur. Therefore, the utility model provides a bottom blowing furnace smelting combustion-supporting device. Utility Model Content

[0004] The purpose of the utility model is to provide a bottom blowing furnace smelting combustion-supporting device, which has the advantage of being able to add a combustion-supporting agent to the blown oxygen, thereby supporting the combustion of the fuel, effectively improving the fuel efficiency, and solving the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bottom-blowing furnace smelting combustion-supporting device, comprising an combustion-supporting agent box and an oxygen lance body, the front end face of the combustion-supporting agent box is provided with an observation window, and the observation window is provided with a capacity scale line, the oxygen lance body comprises a mounting box, an air intake pipe and a blowing pipe, the air intake pipe is installed at one side end of the mounting box, and the air intake pipe is connected with the mounting box, the blowing pipe is installed at one side end of the mounting box away from the air intake pipe, the blowing pipe is connected with the mounting box, and a stop valve is provided on the blowing pipe, a mounting pipe is installed on the inner wall of the upper end of the mounting box, and a symmetrically distributed atomizing nozzle is provided at the lower end of the mounting pipe, a high-pressure pump is provided at the upper end of the combustion-supporting agent box, and a delivery pipe and a suction pipe are provided on the high-pressure pump.

[0006] When using the bottom blowing furnace smelting combustion supporting device of the utility model,

[0007] Liquid combustion aid is added into the combustion aid box through the feeding pipe, and then the threaded cover is installed to close the feeding pipe, and the bottom blowing furnace is supplied with gas through the oxygen gun. During the process, the liquid combustion aid in the combustion aid box is transported to the installation pipe through the operation of the high-pressure pump, and the liquid combustion aid can be sprayed out from the atomizing nozzle in the form of mist, and the atomized liquid combustion aid can be driven into the bottom blowing furnace under the action of the airflow. The oxygen and liquid combustion aid entering the bottom blowing furnace together can improve the fuel efficiency of the fuel.

[0008] Preferably, a support leg is installed at the lower end of the combustion-aiding agent box, and there are four support legs in total, and the four support legs are distributed in an array with respect to the combustion-aiding agent box.

[0009] Preferably, a feeding pipe is provided at the upper end of the combustion-supporting agent box, and a threaded cover is threadedly mounted on the feeding pipe.

[0010] Preferably, a discharge pipe is provided at a lower position of one end surface of the combustion-supporting agent box, and a valve is provided on the discharge pipe.

[0011] Preferably, the extraction pipe extends into the combustion-supporting agent box, and a hose is installed at the end of the delivery pipe, and the end of the hose is connected to the installation pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: in the process of the oxygen gun providing oxygen to the bottom blowing furnace, the liquid combustion aid in the combustion aid box is transported to the installation pipe through the operation of the high-pressure pump, and the liquid combustion aid can be sprayed out from the atomizing nozzle in the form of mist, and under the action of the airflow, the atomized liquid combustion aid can be driven into the bottom blowing furnace. By adding the combustion aid to the blown oxygen, the fuel can be burned, which can effectively improve the fuel efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the oxygen lance of the utility model;

[0015] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0016] The reference numerals and names in the figures are as follows:

[0017] 101. combustion aid box; 102. supporting leg; 103. feeding pipe; 104. discharging pipe; 105. observation window; 106. high-pressure pump; 107. delivery pipe; 108. extraction pipe; 200. oxygen gun body; 201. installation box; 202. air inlet pipe; 203. installation pipe; 204. atomizing nozzle; 205. stop valve; 206. blowing pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] See also Figures 1 to 3 The utility model provides an embodiment: a bottom blowing furnace smelting combustion supporting device, comprising:

[0021] An oxidation-supporting agent box 101 and an oxygen lance body 200, wherein the front end face of the oxidation-supporting agent box 101 is provided with an observation window 105, on which a capacity scale line is provided, the oxygen lance body 200 comprises a mounting box 201, an air inlet pipe 202 and a blowing pipe 206, wherein the air inlet pipe 202 is mounted on one side end of the mounting box 201, and the air inlet pipe 202 is communicated with the mounting box 201, the blowing pipe 206 is mounted on one side end of the mounting box 201 away from the air inlet pipe 202, the blowing pipe 206 is communicated with the mounting box 201, and a stop valve 205 is provided on the blowing pipe 206, a mounting pipe 203 is mounted on the inner wall of the upper end of the mounting box 201, and a symmetrically distributed atomizing nozzle 204 is provided at the lower end of the mounting pipe 203, a high-pressure pump 106 is provided on the upper end of the oxidation-supporting agent box 101, and a delivery pipe 107 and a pumping pipe 108 are provided on the high-pressure pump 106.

[0022] In this embodiment, liquid combustion aid is added into the combustion aid box 101 through the feeding pipe 103, and then the threaded cover is installed to close the feeding pipe 103, and the bottom blowing furnace is supplied with gas through the oxygen gun. During the process, the liquid combustion aid in the combustion aid box 101 is transported to the installation pipe 203 through the operation of the high-pressure pump 106, and the liquid combustion aid can be sprayed out from the atomizing nozzle 204 in the form of mist, and the atomized liquid combustion aid can be driven into the bottom blowing furnace under the action of the airflow. The oxygen and liquid combustion aid entering the bottom blowing furnace together can improve the fuel efficiency of the fuel.

[0023] Furthermore,

[0024] The lower end of the combustion-supporting agent box 101 is provided with a support leg 102, and there are four support legs 102 in total, and the four support legs 102 are distributed in an array with respect to the combustion-supporting agent box 101. The support legs 102 can support the combustion-supporting agent box 101.

[0025] Furthermore,

[0026] The upper end of the combustion-supporting agent box 101 is provided with a feeding pipe 103, and a threaded cover is threadedly installed on the feeding pipe 103. Liquid combustion-supporting agent can be added into the combustion-supporting agent box 101 through the feeding pipe 103, and the feeding pipe 103 can be closed through the threaded cover.

[0027] Furthermore,

[0028] A discharge pipe 104 is provided at the lower position of one end surface of the combustion-supporting agent box 101, and a valve is provided on the discharge pipe 104. When the equipment is not in use, the combustion-supporting agent in the combustion-supporting agent box 101 can be discharged through the discharge pipe 104.

[0029] Furthermore,

[0030] The extraction pipe 108 extends into the combustion-supporting agent box 101, and a hose is installed at the end of the delivery pipe 107, and the end of the hose is connected to the installation pipe 203. When the high-pressure pump 106 works, the extraction pipe 108 can extract the liquid combustion-supporting agent, and transport it through the delivery pipe 107, and the liquid combustion-supporting agent can be transported to the installation pipe 203 through the hose.

[0031] The high-pressure pump 106 in the present invention is a well-known device, and its working principle and circuit connection are well known to technicians in the field, and are conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A bottom-blown furnace smelting combustion-supporting device, comprising an combustion-supporting agent box (101) and an oxygen lance body (200), characterized in that: The front end surface of the combustion-supporting agent box (101) is provided with an observation window (105), and a capacity scale line is provided on the observation window (105). The oxygen lance body (200) comprises a mounting box (201), an air inlet pipe (202), and a blowing pipe (206). The air inlet pipe (202) is mounted on one side of the mounting box (201), and the air inlet pipe (202) is communicated with the mounting box (201). The blowing pipe (206) is mounted on the mounting box (201) away from the air inlet pipe (201). 2), a blowing pipe (206) is connected to the installation box (201), and a stop valve (205) is arranged on the blowing pipe (206); a mounting pipe (203) is installed on the inner wall of the upper end of the installation box (201); a symmetrically distributed atomizing nozzles (204) are arranged at the lower end of the mounting pipe (203); a high-pressure pump (106) is arranged at the upper end of the combustion-supporting agent box (101); a delivery pipe (107) and a material extraction pipe (108) are arranged on the high-pressure pump (106).

2. A bottom blowing furnace smelting combustion supporting device according to claim 1, characterized in that: A support leg (102) is installed at the lower end of the combustion-supporting agent box (101), and there are four support legs (102) in total, and the four support legs (102) are distributed in an array with respect to the combustion-supporting agent box (101).

3. A bottom blowing furnace smelting combustion supporting device according to claim 1, characterized in that: A feeding pipe (103) is provided at the upper end of the combustion-supporting agent box (101), and a threaded cover is threadedly mounted on the feeding pipe (103).

4. The bottom blowing furnace smelting combustion supporting device according to claim 1, characterized in that: A discharge pipe (104) is provided at the lower portion of one end surface of the combustion-supporting agent box (101), and a valve is provided on the discharge pipe (104).

5. The bottom blowing furnace smelting combustion supporting device according to claim 1, characterized in that: The extraction pipe (108) extends into the combustion-supporting agent box (101), and a hose is installed at the end of the delivery pipe (107), and the end of the hose is connected to the installation pipe (203).

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