Blast furnace gas desulfurization device

Abstract

The utility model discloses a blast furnace gas desulfurization device, which relates to the technical field of blast furnace gas desulfurization and comprises a liquid medicine tank, the lower part of the liquid medicine tank is communicated with the right end of a liquid medicine pipe, a gas pipe is transversely arranged at the upper part of the liquid medicine pipe, and the left rear parts of the liquid medicine pipe and the gas pipe are respectively communicated with a square pipe; the left portions of the inner sides of the liquid medicine pipe and the gas pipe are slidably connected with pistons correspondingly, the left ends of the two pistons are fixedly connected with push rods correspondingly, the left ends of the two push rods penetrate through round holes formed in the liquid medicine pipe and the gas pipe correspondingly to be fixedly connected with the corresponding positions of a connecting plate, and the upper end of the connecting plate is connected with a power assembly. The square pipe on the upper side is communicated with the lower end of the spraying chamber through the first conveying pipe, the square pipe on the lower side is communicated with the second conveying pipe, the upper end of the second conveying pipe extends to the inner side of the upper portion of the spraying chamber and is communicated with the spraying mechanism, the amount of desulfurization liquid medicine is adjusted while the blast furnace gas displacement is adjusted, and proportional imbalance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace gas desulfurization, in particular to a blast furnace gas desulfurization device. Background Art

[0002] Blast furnace gas is a combustible gas produced as a byproduct of the blast furnace ironmaking process, including various oxides, sulfides, dust, etc. The sulfide in blast furnace gas is mainly sulfur dioxide, which is one of the main pollutants in the atmosphere and the main gas that forms acid rain. It is extremely harmful, so blast furnace gas needs to be desulfurized before it can be discharged into the atmosphere.

[0003] Existing desulfurization methods often use desulfurization liquid to spray blast furnace gas to perform desulfurization work. When desulfurization is performed, the amount of desulfurization liquid needs to be controlled so that the amount of desulfurization liquid increases in direct proportion to the amount of blast furnace gas. Therefore, the discharge volume of desulfurization liquid needs to be frequently adjusted, and the operation is cumbersome. For this reason, we propose a blast furnace gas desulfurization device. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a blast furnace gas desulfurization device, which can adjust the amount of desulfurization liquid while adjusting the blast furnace gas discharge to avoid imbalance, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blast furnace gas desulfurization device, comprising a chemical water box, the lower part of the chemical water box is connected to the right end of the chemical water pipe, the upper part of the chemical water pipe is horizontally arranged with a gas pipe, the chemical water pipe and the left rear part of the gas pipe are respectively connected to a square pipe, the inner left parts of the chemical water pipe and the gas pipe are respectively slidably connected to pistons, the left ends of the two pistons are respectively fixedly connected to push rods, the left ends of the two push rods respectively pass through the circular holes opened on the chemical water pipe and the gas pipe and are fixedly connected to the corresponding positions on the connecting plate, the upper end of the connecting plate is connected to a power assembly, the upper square tube is connected to the lower end of the spray chamber through the delivery pipe 1, the lower square tube is connected to the delivery pipe 2, the upper end of the delivery pipe 2 extends to the inner side of the upper part of the spray chamber and is connected to the spray mechanism.

[0006] Two synchronously moving pistons are designed so that the amounts of blast furnace gas and desulfurization agent can be increased in the same proportion, which makes operation easier. When the control device performs desulfurization work, the blast furnace gas is quickly transported into the gas pipe through an external air pump, and then enters the spray chamber through the upper square tube and delivery pipe 1, and then the desulfurization solution in the solution box is transported into the solution pipe through an external water pump, and then transported to the spray mechanism through the lower square tube and delivery pipe 2, so that the blast furnace gas in the spray chamber is desulfurized by atomization spraying through the spray mechanism. When adjusting the amount of blast furnace gas, the push rod is driven to move by the power assembly, thereby driving the two pistons to move, so that the size of the openings of the two square tubes is adjusted by the two pistons, and the amounts of blast furnace gas and desulfurization solution are adjusted together.

[0007] Furthermore, the power assembly includes a hydraulic rod, the middle part of the right end of the connecting plate is fixedly connected to the left end of the hydraulic rod, the right end of the hydraulic rod is fixedly connected to the support plate, the upper and lower ends of the support plate are respectively fixedly connected to the outer surfaces of the corresponding medicine pipe and gas pipe, and the input end of the hydraulic rod is electrically connected to the output end of the external power supply through the control of an external control switch.

[0008] The hydraulic rod is controlled by an external control switch to move the connecting plate left and right, thereby driving the push rod to move left and right.

[0009] Furthermore, the spray mechanism includes a rotating joint, and the upper end of the second delivery pipe passes through a circular hole opened on the upper side surface of the spray chamber, extends to the upper inner part of the spray chamber, and is connected to the rotating pipe through the rotating joint, and the rotating pipe is connected to the spray pipe at an equal distance.

[0010] The rotary joint is designed so that the rotating tube can rotate, so that rotary spraying can be performed, thereby making the spraying more uniform.

[0011] Furthermore, the desulfurization device also includes fan blades, and the lower end of the rotating tube extends to the upper part of the conveying pipe 1 and is fixedly connected to the fan blades.

[0012] The fan blades are designed so that the high-speed gas entering can blow the fan blades to rotate, thereby driving the rotating pipe to rotate, thereby driving the spray pipe to perform rotary spraying.

[0013] Furthermore, the desulfurization device also includes a filter screen, and the filter screen is fixedly connected to the inner side of the gas pipe through a fixing frame.

[0014] The filter is designed to filter the blast furnace gas through the filter to prevent impurities from entering the device and causing pipeline blockage.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the blast furnace gas desulfurization device has the following advantages:

[0016] 1. Two synchronously moving pistons are designed to increase the amount of blast furnace gas and desulfurization agent in the same proportion, which is convenient for operation;

[0017] 2. Design a rotating joint so that the rotating tube can rotate, so that rotary spraying can be performed, making the spraying more uniform;

[0018] 3. The fan blades are designed so that the high-speed gas can blow the fan blades to rotate, thereby driving the rotating tube to rotate, thereby driving the spray pipe to perform rotary spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model

[0020] Figure 2 This is a schematic diagram of the internal structure of the medicine water pipe and gas pipe of the utility model

[0021] Figure 3 This is a schematic diagram of the internal structure of the spray chamber of the utility model

[0022] Figure 4 It is a schematic diagram of the cross-section front view structure of the medicine water pipe and the gas pipe of the utility model.

[0023] In the figure: 1 spray room, 2 medicine tank, 3 medicine pipe, 4 gas pipe, 5 square pipe, 6 piston, 7 push rod, 8 connecting plate, 9 hydraulic rod, 10 delivery pipe 1, 11 delivery pipe 2, 12 rotary joint, 13 rotating pipe, 14 spray pipe, 15 fan blade, 16 filter. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4, this embodiment provides a technical solution: a blast furnace gas desulfurization device, including a medicine water box 2, the lower part of the medicine water box 2 is connected to the right end of the medicine water pipe 3, the upper part of the medicine water pipe 3 is horizontally arranged with a gas pipe 4, the medicine water pipe 3 and the left rear part of the gas pipe 4 are respectively connected to the square pipe 5, the inner left part of the medicine water pipe 3 and the gas pipe 4 are respectively slidably connected to the piston 6, the left ends of the two pistons 6 are respectively fixedly connected to the push rods 7, the left ends of the two push rods 7 pass through the circular holes opened on the medicine water pipe 3 and the gas pipe 4 and are fixedly connected to the corresponding positions on the connecting plate 8, the upper end of the connecting plate 8 is connected to the power assembly, the upper square pipe 5 is connected to the lower end of the spray chamber 1 through the delivery pipe 1 10, the lower square pipe 5 is connected to the delivery pipe 2 11, the upper end of the delivery pipe 2 11 extends to the inner side of the upper part of the spray chamber 1, and is connected to the spray mechanism.

[0026] Two synchronously moving pistons 6 are designed so that the amounts of blast furnace gas and desulfurization agent can be increased in the same proportion, which is convenient for operation. When the control device performs desulfurization work, the blast furnace gas is quickly transported into the gas pipe 4 through an external air pump, and then enters the spray chamber 1 through the upper square tube 5 and the delivery pipe 1 10, and then the desulfurization solution in the solution box 2 is transported into the solution pipe 3 through an external water pump, and then transported to the spray mechanism through the lower square tube 5 and the delivery pipe 2 11, so that the blast furnace gas in the spray chamber 1 is desulfurized by atomization spraying through the spray mechanism. When the amount of blast furnace gas is adjusted, the push rod 7 is driven to move by the power assembly, thereby driving the two pistons 6 to move, so that the size of the openings of the two square tubes 5 is adjusted by the two pistons 6, so that the amounts of blast furnace gas and desulfurization solution are adjusted together.

[0027] The power assembly includes a hydraulic rod 9, the middle of the right end of the connecting plate 8 is fixedly connected to the left end of the hydraulic rod 9, the right end of the hydraulic rod 9 is fixedly connected to the support plate, the upper and lower ends of the support plate are respectively fixedly connected to the outer surfaces of the corresponding medicine pipe 3 and gas pipe 4, and the input end of the hydraulic rod 9 is electrically connected to the output end of the external power supply through the external control switch.

[0028] The hydraulic rod 9 is controlled to work through an external control switch, thereby driving the connecting plate 8 to move left and right, thereby driving the push rod 7 to move left and right.

[0029] The spray mechanism includes a rotating joint 12. The upper end of the delivery pipe 11 passes through a circular hole opened on the upper side surface of the spray chamber 1, extends to the upper inner side of the spray chamber 1, and is connected to the rotating pipe 13 through the rotating joint 12. The rotating pipe 13 is connected to the spray pipe 14 at an equal distance.

[0030] The rotary joint 12 is designed so that the rotary tube 13 can be rotated, so that rotary spraying can be performed, thereby making the spraying more uniform.

[0031] The desulfurization device also includes a fan blade 15. The lower end of the rotating tube 13 extends to the upper part of the conveying tube 10 and is fixedly connected to the fan blade 15.

[0032] The fan blades 15 are designed so that the high-speed gas can blow the fan blades 15 to rotate, thereby driving the rotating tube 13 to rotate, thereby driving the spray pipe 14 to perform rotary spraying.

[0033] The desulfurization device further includes a filter screen 16 , and the filter screen 16 is fixedly connected to the inner side of the gas pipe 4 via a fixing frame.

[0034] The filter screen 16 is designed so that the blast furnace gas can be filtered through the filter screen 16 to prevent impurities from entering the interior of the device, thereby preventing the pipeline from being blocked.

[0035] The working principle of a blast furnace gas desulfurization device provided by the utility model is as follows:

[0036] The blast furnace gas is quickly transported into the gas pipe 4 through an external air pump, and then enters the spray chamber 1 through the upper square tube 5 and the delivery pipe 1 10, and at the same time, the fan blades 15 are blown to rotate, thereby driving the rotating tube 13 to rotate, and then the desulfurization solution in the solution box 2 is transported into the solution pipe 3 through an external water pump, and then transported to the rotating tube 13 through the lower square tube 5 and the delivery pipe 2 11, and then atomized and sprayed through the spray pipe 14, so that the blast furnace gas in the spray chamber 1 is desulfurized by atomization and spraying through the spray mechanism. When adjusting the amount of blast furnace gas, the hydraulic rod 9 is controlled by the external control switch to drive the connecting plate 8 to move, thereby driving the push rod 7 to move, thereby driving the two pistons 6 to move, so that the size of the openings of the two square tubes 5 is adjusted by the two pistons 6, so that the amount of blast furnace gas and desulfurization solution is adjusted together.

[0037] It is worth noting that the hydraulic rod 9 disclosed in the above embodiment adopts the Longxiang hydraulic rod, and the method commonly used in the prior art is used to control the operation of the hydraulic rod 9 through an external control switch.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A blast furnace gas desulfurization device, characterized in that: The invention comprises a medicine box (2), the lower part of which is connected to the right end of a medicine pipe (3), the upper part of which is transversely provided with a gas pipe (4), the left rear parts of the medicine pipe (3) and the gas pipe (4) are respectively connected to a square pipe (5), the inner left parts of the medicine pipe (3) and the gas pipe (4) are respectively slidably connected to pistons (6), the left ends of the two pistons (6) are respectively fixedly connected to push rods (7), the left ends of the two push rods (7) respectively pass through circular holes provided on the medicine pipe (3) and the gas pipe (4) and are fixedly connected to corresponding positions on a connecting plate (8), the upper end of the connecting plate (8) is connected to a power assembly, the upper square pipe (5) is connected to the lower end of a spray chamber (1) through a delivery pipe 1 (10), the lower square pipe (5) is connected to a delivery pipe 2 (11), the upper end of the delivery pipe 2 (11) extends to the inner side of the upper part of the spray chamber (1) and is connected to a spray mechanism.

2. A blast furnace gas desulfurization device according to claim 1, characterized in that: The power assembly comprises a hydraulic rod (9), the middle portion of the right end of the connecting plate (8) is fixedly connected to the left end of the hydraulic rod (9), the right end of the hydraulic rod (9) is fixedly connected to a support plate, the upper and lower ends of the support plate are respectively fixedly connected to the outer surfaces of the corresponding medicine water pipe (3) and gas pipe (4), and the input end of the hydraulic rod (9) is electrically connected to the output end of an external power supply through the control of an external control switch.

3. A blast furnace gas desulfurization device according to claim 1, characterized in that: The spray mechanism comprises a rotating joint (12), the upper end of the second delivery pipe (11) passes through a circular hole provided on the upper part of the upper side surface of the spray chamber (1), extends to the upper part of the inner side of the spray chamber (1), and is connected to a rotating pipe (13) through the rotating joint (12), and the rotating pipe (13) is connected to a spray pipe (14) at an equal distance.

4. A blast furnace gas desulfurization device according to claim 3, characterized in that: The desulfurization device further comprises a fan blade (15), and the lower end of the rotating tube (13) extends to the upper part of the conveying tube 1 (10) and is fixedly connected to the fan blade (15).

5. A blast furnace gas desulfurization device according to claim 1, characterized in that: The desulfurization device further comprises a filter screen (16), and the filter screen (16) is fixedly connected to the inner side of the gas pipe (4) via a fixing frame.

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