Intelligent cleaning equipment for blast furnace coal injection gun

Abstract

The utility model relates to the technical field of hot pressing forming machines, and discloses a blast furnace coal injection gun intelligent cleaning device which comprises a furnace body and a connecting pipe, a furnace cover is installed above the furnace body, a rotating machine pipe is installed on the outer wall of the furnace body, an installation base is installed on the outer wall of the rotating machine pipe, an air inlet pipe is installed at the lower end of the installation base, and an installation pipe is installed at the lower end of the air inlet pipe. A connecting pipe is connected with a mounting pipe, a pressure sensor is arranged through a spray gun to detect the pressure of the spray gun, an air supplementing hole and a pneumatic valve are used for supplementing air, and the pressure of conveyed air is forcibly increased to purge deposited pulverized coal in a pipeline, so that the pipeline is smooth, the pulverized coal is prevented from blocking the pipeline, and the influence of coal stopping of a blast furnace on furnace condition fluctuation is avoided; the control box and the control unit are used for programming, the pressure value is set through the control unit, when the pressure of the spray gun is larger than the set pressure, the pneumatic valve is opened for supplying gas, the pressure of the conveyed gas is used for purging the deposited pulverized coal in the pipeline, the working efficiency is improved, and therefore the optimal using effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing machines, in particular to an intelligent cleaning device for a blast furnace coal injection gun. Background Art

[0002] The blast furnace coal injection mainly consists of raw coal storage and transportation, pulverized coal preparation, pulverized coal transportation, pulverized coal injection, dry gas preparation and gas supply power system. The blast furnace coal injection is an important means for blast furnace energy conservation and consumption reduction, and furnace temperature adjustment. In the blast furnace coal injection system, the section from the pulverized coal distributor to the pulverized coal injection gun is the last link of the blast furnace coal injection, and also the end of the pipeline of the injection system. The resistance loss is relatively large, and it is easy to block coal.

[0003] However, the blockage of the existing pulverized coal injection guns causes uneven coal injection in the blast furnace, changes in the blast furnace coal gas flow, furnace condition fluctuations, and a decrease in the coal injection volume. If blocked for a long time, it will also cause damage to the coal injection gun, thus failing to achieve the best use effect. Content of the Utility Model

[0004] To achieve the above objectives, the utility model is realized through the following technical solutions: An intelligent cleaning device for a blast furnace coal injection gun, including a furnace body and a connecting pipe. A furnace cover is installed above the furnace body. A rotating pipe is installed on the outer wall of the furnace body. An installation base is installed on the outer wall of the rotating pipe. An air inlet pipe is installed at the lower end of the installation base. An installation pipe is installed at the lower end of the air inlet pipe. A valve is fixedly installed at one end of the installation pipe. A control mechanism is fixedly installed at the left end of the connecting pipe.

[0005] Furthermore, the rotating pipe is made of stainless steel components, and the rotating pipe is connected to the installation pipe through the installation base.

[0006] Furthermore, the inner wall of the connecting pipe adopts a high-temperature resistant elastic shell.

[0007] Furthermore, the control mechanism includes a control box. An air supplement hole is opened at one end of the control box. A pneumatic valve is installed at the upper end of the control box. A control unit is installed on the outer wall of the control box. A sealing ring is installed at one end of the control box. A spray gun mechanism is installed through one end of the control box. The spray gun mechanism is installed at one end of the control box through the sealing ring.

[0008] Furthermore, a PLC control unit is installed on the inner wall of the control box, and the control box is electrically connected to the control mechanism through the PLC control unit.

[0009] Furthermore, legs are installed at the lower end of the control box, and the control box is communicated with the connecting pipe through the spray gun mechanism.

[0010] Furthermore, the spray gun mechanism includes a spray gun, a pressure sensor is installed at the left end of the spray gun, an inner cylinder is fixedly installed on the outer wall of the spray gun, a spray pipe is fixedly installed on the outer wall of the inner cylinder, and the spray gun is fixedly installed on one side of the control box through a sealing ring.

[0011] Furthermore, the spray gun is installed on the inner wall of the connecting pipe through the spray pipe, and the spray pipe is made of a high-temperature resistant pipe.

[0012] Beneficial effects

[0013] The utility model provides an intelligent cleaning device for a blast furnace coal injection gun, which has the following beneficial effects:

[0014] Through the settings of the air inlet pipe, installation pipe, spray gun, pressure sensor, inner cylinder and spray pipe, the spray gun is connected with the connecting pipe, the connecting pipe is connected with the installation pipe, the pressure sensor is set on the spray gun to detect the pressure of the spray gun, the air supplement hole and the pneumatic valve are used for air supplement, the pressure of the conveying gas is forcibly increased to blow the deposited pulverized coal in the pipeline, ensuring the smoothness of the pipeline to prevent the pulverized coal from blocking the pipeline, and avoiding the influence of the blast furnace coal stoppage on the furnace condition fluctuation;

[0015] Through the settings of the control box, air supplement hole, pneumatic valve, control unit and sealing ring, programming is carried out by using the control box and the control unit, the pressure value is set by the control unit, when the pressure of the spray gun is greater than the set pressure, the pneumatic valve opens for air supplement, and the pressure of the conveying gas blows the deposited pulverized coal in the pipeline, improving the work efficiency, so as to achieve the best use effect. Description of the drawings

[0016] Figure 1 It is a schematic structural diagram of the utility model;

[0017] Figure 2 It is a schematic structural diagram of the control mechanism in the utility model;

[0018] Figure 3 It is a schematic structural diagram of the spray gun mechanism in the utility model.

[0019] In the figure: 1, furnace body; 2, furnace cover; 3, rotating pipe; 4, installation base; 5, air inlet pipe; 6, installation pipe; 7, valve; 8, connecting pipe; 9, control mechanism; 91, control box; 92, air supplement hole; 93, pneumatic valve; 94, control unit; 95, sealing ring; 96, spray gun mechanism; 961, spray gun; 962, pressure sensor; 963, inner cylinder; 964, spray pipe. Specific implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: an intelligent cleaning device for a blast furnace coal injection gun, including a furnace body 1 and a connecting pipe 8. A furnace cover 2 is installed above the furnace body 1. A rotating pipe is installed on the outer wall of the furnace body 1. An installation base 4 is installed on the outer wall of the rotating pipe 3. An air inlet pipe 5 is installed at the lower end of the installation base 4. An installation pipe 6 is installed at the lower end of the air inlet pipe 5. A valve 7 is fixedly installed at one end of the installation pipe 6. A control mechanism 9 is fixedly installed at the left end of the connecting pipe 8. The rotating pipe 3 is made of a stainless steel member. The rotating pipe 3 is connected through the installation base 4 and the installation pipe 6. The inner wall of the connecting pipe 8 is made of a high-temperature resistant elastic shell.

[0022] The control mechanism 9 includes a control box 91. An air replenishing hole 92 is opened at one end of the control box 91. A pneumatic valve 93 is installed at the upper end of the control box 91. A control unit 94 is installed on the outer wall of the control box 91. A sealing ring 95 is installed at one end of the control box 91. A spray gun mechanism 96 is installed through one end of the control box 91.

[0023] The spray gun mechanism 96 is installed at one end of the control box 91 through the sealing ring 95. A PLC control unit 94 is installed on the inner wall of the control box 91. The control box 91 is electrically connected to the control mechanism 9 through the PLC control unit 94. Legs are installed at the lower end of the control box 91. The control box 91 is communicated with the connecting pipe 8 through the spray gun mechanism 96. The spray gun mechanism 96 includes a spray gun 961. A pressure sensor 962 is installed at the left end of the spray gun 961. An inner cylinder 963 is fixedly installed on the outer wall of the spray gun 961. A spray pipe 964 is fixedly installed on the outer wall of the inner cylinder 963. The spray gun 961 is fixedly installed on one side of the control box 91 through the sealing ring 95. The spray gun 961 is installed on the inner wall of the connecting pipe 8 through the spray pipe 964. The spray pipe 964 is made of a high-temperature resistant pipe.

[0024] In summary, the operation steps of the intelligent cleaning device for the blast furnace coal injection gun are as follows;

[0025] When in use, the spray gun 961 is connected to the connecting pipe 8, and the connecting pipe 8 is used to connect to the installation pipe 6. A pressure sensor 962 is set through the spray gun 961 to detect the pressure of the spray gun 961. The air supply hole 92 and the pneumatic valve 93 are used to supply air, and the conveying gas pressure is forced to increase to purge the coal powder deposited in the pipeline, so as to ensure that the pipeline is unobstructed and prevent the coal powder from clogging the pipeline and avoiding the fluctuation of the furnace condition caused by the suspension of coal supply in the blast furnace. The control box 91 and the control unit 94 are used for programming, and the pressure value is set by the control unit 94. When the pressure of the spray gun 961 is greater than the set pressure, the pneumatic valve 93 is opened to supply air, and the conveying gas pressure is used to purge the coal powder deposited in the pipeline, thereby improving work efficiency and achieving the best use effect.

Claims

1. An intelligent cleaning device for a blast furnace coal injection gun, comprising a furnace body (1) and a connecting pipe (8), characterized in that: A furnace cover (2) is installed above the furnace body (1); a rotary tube (3) is installed on the outer wall of the furnace body (1); a mounting base (4) is installed on the outer wall of the rotary tube (3); an air intake pipe (5) is installed at the lower end of the mounting base (4); a mounting tube (6) is installed at the lower end of the air intake pipe (5); a valve (7) is fixedly installed at one end of the mounting tube (6); and a control mechanism (9) is fixedly installed at the left end of the connecting tube (8).

2. The intelligent cleaning device for coal injection gun of blast furnace according to claim 1, characterized in that: The rotating machine pipe (3) is made of a stainless steel component, and the rotating machine pipe (3) is connected to the mounting pipe (6) through the mounting base (4).

3. The intelligent cleaning device for coal injection gun of blast furnace according to claim 1, characterized in that: The inner wall of the connecting pipe (8) adopts a high temperature resistant elastic shell.

4. The intelligent cleaning device for coal injection gun of blast furnace according to claim 1, characterized in that: The control mechanism (9) comprises a control box (91), one end of the control box (91) is provided with an air supply hole (92), the upper end of the control box (91) is provided with a pneumatic valve (93), the outer wall of the control box (91) is provided with a control unit (94), one end of the control box (91) is provided with a sealing ring (95), one end of the control box (91) is provided with a spray gun mechanism (96), and the spray gun mechanism (96) is provided at one end of the control box (91) through the sealing ring (95).

5. The intelligent cleaning device for coal injection gun of blast furnace according to claim 4, characterized in that: A PLC control unit (94) is installed on the inner wall of the control box (91), and the control box (91) is electrically connected to the control mechanism (9) via the PLC control unit (94).

6. The intelligent cleaning device for coal injection gun of blast furnace according to claim 4, characterized in that: A support leg is installed at the lower end of the control box (91), and the control box (91) is connected to the connecting pipe (8) through the spray gun mechanism (96).

7. The intelligent cleaning device for coal injection gun of blast furnace according to claim 4, characterized in that: The spray gun mechanism (96) comprises a spray gun (961), a pressure sensor (962) is installed at the left end of the spray gun (961), an inner tube (963) is fixedly installed on the outer wall of the spray gun (961), a nozzle (964) is fixedly installed on the outer wall of the inner tube (963), and the spray gun (961) is fixedly installed on one side of the control box (91) through a sealing ring (95).

8. The intelligent cleaning device for coal injection gun of blast furnace according to claim 7, characterized in that: The spray gun (961) is installed on the inner wall of the connecting pipe (8) via a spray pipe (964), and the spray pipe (964) is made of a high-temperature resistant pipe.

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