Ignition mechanism of sintering machine

Abstract

The utility model relates to the technical field of sintering, in particular to an ignition mechanism of a sintering machine, which comprises a mixing pipe, a fuel gas inlet pipe and an air inlet pipe, an ignition nozzle is mounted at the tail end of the mixing pipe, electric ignition rods distributed in an array are arranged in the ignition nozzle, a rotating shaft is rotatably mounted in the mixing pipe, and the fuel gas inlet pipe is connected with the air inlet pipe. A spiral blade is arranged on the rotating shaft, fan blades are installed at the tail end of the rotating shaft, the fuel gas inlet pipe is installed at one side end of the mixing pipe and communicated with the mixing pipe, the air inlet pipe is installed at the position, symmetrical to the fuel gas inlet pipe, of the side end of the mixing pipe, and the air inlet pipe comprises an inner pipe body. An outer pipe body is installed on the outer side of the inner pipe body, the inner pipe body is located in the outer pipe body, and heating pipes distributed at equal intervals are installed on the outer surface of the inner pipe body. The gas stove has the advantages that air and gas can be fully mixed, the air can be dried, and damp air is prevented from affecting ignition.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to an ignition mechanism for a sintering machine. Background Art

[0002] Sintering machine is suitable for sintering operation in large-scale ferrous metallurgical sintering plants, and is mainly suitable for sintering iron ore powder in large and medium-sized sintering plants. It is the main equipment in the exhaust sintering process, which can sinter concentrate powder and rich ore powder of different components and different particle sizes into blocks, and partially eliminate harmful impurities such as sulfur and phosphorus contained in the ore. Sintering machine is divided into several specifications of different lengths and widths according to the sintering area, and users can choose according to their output or site conditions. The larger the sintering area, the higher the output.

[0003] The sintering machine needs to use an igniter for ignition during use. During ignition and combustion, the gas and air cannot be fully mixed, which will prevent the gas from fully burning. It also does not have the function of air drying. If the air humidity is high, it will not only affect the ignition, but also reduce the combustion efficiency and affect the operation of the sintering machine. Utility Model Content

[0004] The utility model aims to provide an ignition mechanism for a sintering machine, which has the advantages of fully mixing air and fuel gas, drying the air and preventing moist air from affecting ignition, and solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ignition mechanism of a sintering machine, comprising a mixing tube, a gas inlet tube and an air inlet tube, an ignition nozzle is installed at the end of the mixing tube, and electric ignition rods distributed in an array are arranged in the ignition nozzle, a rotating shaft is rotatably installed in the mixing tube, a spiral blade is arranged on the rotating shaft, and a fan blade is installed at the end of the rotating shaft;

[0006] The gas inlet pipe is installed at one side end of the mixing pipe, and the gas inlet pipe is connected to the mixing pipe;

[0007] The air inlet pipe is installed at the side end of the mixing pipe and at a symmetrical position with the gas inlet pipe. The air inlet pipe includes:

[0008] The inner tube body has an outer tube body installed on its outer side, the inner tube body is located inside the outer tube body, and the outer surface of the inner tube body has heating tubes installed at equal distances.

[0009] When using the sintering machine ignition mechanism of the utility model,

[0010] Gas enters into the mixing tube from the gas inlet pipe, and air enters into the mixing tube from the air inlet pipe. During the process of air entering, the inner tube body can be heated by the operation of the heating tube, so that the air in the air inlet tube can be heated. The air can be dried under the action of heating. The driving device can make the rotating shaft rotate at a high speed. The high-speed rotation of the rotating shaft can make the spiral blades and the fan blades rotate. The spiral blades can drive the air and gas to move in a spiral motion, so that the air and gas can be fully mixed. The fan blades can drive the gas to flow rapidly to increase the air pressure. The rapidly flowing gas and air can be quickly ejected from the ignition nozzle, and ignition can be performed by the operation of the electric ignition rod to make the ejected gas and air mixed gas burn.

[0011] Preferably, a check valve is provided at the tail position of the mixing tube.

[0012] Preferably, a driving device is installed at the starting end of the mixing tube, and the main shaft of the driving device is connected to the axis of the rotating shaft.

[0013] Preferably, a first valve is provided on the gas inlet pipe.

[0014] Preferably, the inner tube body is communicated with the mixing tube, and a second valve is provided on the inner tube body.

[0015] Preferably, an equipment cavity is formed between the inner tube body and the outer tube body, and the heating tube is located in the equipment cavity.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The air enters the mixing tube from the air inlet pipe. During the air entry process, the inner tube body can be heated by the heating tube, so that the air in the air inlet tube can be heated. The air can be dried under the action of heating, which can effectively prevent the air from being humid, prevent the impact on ignition, and improve the combustion efficiency.

[0018] 2. When air and gas enter the mixing tube, the driving device can make the rotating shaft rotate at high speed, and the high-speed rotation of the rotating shaft can make the spiral blades and fan blades rotate. The spiral blades can drive the air and gas to move in a spiral, so that the air and gas can be fully mixed, the gas can be fully burned, and the waste of gas can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a cross-sectional structure viewed from above of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 3This is a schematic diagram of the structure of the ignition rod of the utility model;

[0022] Figure 4 It is a partial front view structural schematic diagram of the utility model.

[0023] The reference numerals and names in the figures are as follows:

[0024] 101. mixing tube; 102. rotating shaft; 103. fan blade; 104. spiral blade; 105. driving device; 106. check valve; 107. ignition nozzle; 108. electric ignition rod; 201. gas inlet pipe; 202. first valve; 301. air inlet pipe; 302. outer tube body; 303. heating tube; 304. inner tube body; 305. second valve. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1

[0027] See also Figures 1 to 4 The utility model provides an embodiment: a sintering machine ignition mechanism, comprising:

[0028] A mixing tube 101, a gas inlet tube 201 and an air inlet tube 301, an ignition nozzle 107 is installed at the end of the mixing tube 101, and electric ignition rods 108 distributed in an array are arranged in the ignition nozzle 107, a rotating shaft 102 is rotatably installed in the mixing tube 101, a spiral blade 104 is arranged on the rotating shaft 102, and a fan blade 103 is installed at the end of the rotating shaft 102;

[0029] The gas inlet pipe 201 is installed at one side end of the mixing pipe 101, and the gas inlet pipe 201 is connected to the mixing pipe 101;

[0030] The air inlet pipe 301 is installed at the side end of the mixing pipe 101 and at a symmetrical position with the gas inlet pipe 201. The air inlet pipe 301 includes:

[0031] The inner tube body 304 has the outer tube body 302 installed on its outer side. The inner tube body 304 is located inside the outer tube body 302 . The outer surface of the inner tube body 304 has the heating tubes 303 installed at equal distances.

[0032] In this embodiment, during use, gas enters the mixing tube 101 from the gas inlet pipe 201, and air enters the mixing tube 101 from the air inlet pipe 301. During the process of air entering, the inner tube body 304 can be heated by the operation of the heating tube 303, so that the air in the air inlet pipe 301 can be heated, and the air can be dried under the action of heating. When the air and gas enter the mixing tube 101, the driving device 105 can make the rotating shaft 102 rotate at a high speed, and the high-speed rotation of the rotating shaft 102 can make the spiral blades 104 and the fan blades 103 rotate. The spiral blades 104 can drive the air and gas to move in a spiral motion, so that the air and gas can be fully mixed. The fan blades 103 can drive the gas to flow rapidly to increase the air pressure. The rapidly flowing gas and air can be quickly ejected from the ignition nozzle 107, and can be ignited by the operation of the electric ignition rod 108, so that the mixed gas of the gas and air can be burned.

[0033] Furthermore,

[0034] A check valve 106 is provided at the tail end of the mixing pipe 101 .

[0035] The check valve 106 can prevent the ignition flame from flowing back.

[0036] Furthermore,

[0037] A driving device 105 is installed at the beginning of the mixing tube 101 , and the main shaft of the driving device 105 is connected to the axis of the rotating shaft 102 .

[0038] The driving device 105 can make the rotating shaft 102 rotate at a high speed.

[0039] Furthermore,

[0040] The gas inlet pipe 201 is provided with a first valve 202 .

[0041] The first valve 202 can be set to open and close the gas inlet pipe 201.

[0042] Furthermore,

[0043] The inner tube body 304 is communicated with the mixing tube 101 , and a second valve 305 is disposed on the inner tube body 304 .

[0044] The second valve 305 can be arranged to open and close the inner tube body 304 .

[0045] Furthermore,

[0046] An equipment cavity is formed between the inner tube body 304 and the outer tube body 302, and the heating tube 303 is located in the equipment cavity.

[0047] The setting of the heating tube 303 can heat the inner tube body 304, thereby heating the incoming air.

[0048] The driving device 105, the electric ignition rod 108 and the heating tube 303 in the utility model are well-known devices, and their working principles and circuit connections are well known to technicians in the field. They are all conventional means or common knowledge and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0049] 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 sintering machine ignition mechanism, comprising a mixing tube (101), a gas inlet tube (201) and an air inlet tube (301), characterized in that: An ignition nozzle (107) is installed at the end of the mixing tube (101), and electric ignition rods (108) distributed in an array are arranged in the ignition nozzle (107); a rotating shaft (102) is rotatably installed in the mixing tube (101), a spiral blade (104) is arranged on the rotating shaft (102), and a fan blade (103) is installed at the end of the rotating shaft (102); The gas inlet pipe (201) is installed at one side end of the mixing pipe (101), and the gas inlet pipe (201) is in communication with the mixing pipe (101); The air inlet pipe (301) is installed at a symmetrical position between the side end of the mixing pipe (101) and the gas inlet pipe (201), and the air inlet pipe (301) comprises: An inner tube body (304), wherein an outer tube body (302) is installed on the outer side of the inner tube body (304), the inner tube body (304) is located inside the outer tube body (302), and heating tubes (303) are installed on the outer surface of the inner tube body (304) at equal intervals.

2. The ignition mechanism of a sintering machine according to claim 1, characterized in that: A check valve (106) is provided at the tail end of the mixing tube (101).

3. The ignition mechanism of a sintering machine according to claim 1, characterized in that: A driving device (105) is installed at the beginning of the mixing tube (101), and the main shaft of the driving device (105) is connected to the axis of the rotating shaft (102).

4. The ignition mechanism of a sintering machine according to claim 1, characterized in that: The gas inlet pipe (201) is provided with a first valve (202).

5. The ignition mechanism of a sintering machine according to claim 1, characterized in that: The inner tube body (304) is in communication with the mixing tube (101), and a second valve (305) is provided on the inner tube body (304).

6. The ignition mechanism of a sintering machine according to claim 1, characterized in that: An equipment cavity is formed between the inner tube body (304) and the outer tube body (302), and the heating tube (303) is located in the equipment cavity.

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