Electric arc furnace flue gas dust remover

Abstract

The utility model relates to the technical field of flue gas dust removers, and discloses an electric arc furnace flue gas dust remover which comprises a shell, an air outlet is formed in the outer wall of the shell, an air inlet is formed in the outer wall of the shell, and a water outlet plate is fixedly connected to the end, close to the water outlet plate, of the inner wall of the shell. A filter bag is fixedly connected to the inner wall, away from the water outlet plate, of the shell, a discharging opening is formed in the lower end of the shell, an air outlet pipe is arranged on the outer wall of the shell, and a dust discharging assembly is arranged in the shell. According to the flue gas dust remover for the electric arc furnace, after a certain amount of dust is accumulated on the sealing plate, the sealing plate can be pressed down, at the moment, the clamping block leaves the clamping groove in the upper end of the connecting block and is clamped with the clamping groove in the lower end of the connecting block, and when the dust falls out of the shell to a certain degree, the connecting block is driven by the reset spring to enable the clamping block to leave the clamping groove, so that the dust can fully fall off; workers can be prevented from being hurt by dust entering the air pipe when the dust is filtered by the workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue gas dust remover, concretely to an electric arc furnace flue gas dust remover. BACKGROUND

[0002] A large amount of high-temperature flue gas is generated during electric arc furnace smelting, and the flue gas often contains a lot of dust. If the dust is not cleaned, it will easily cause damage to the surrounding workers, and if it is discharged to the external environment, it will also pollute the surrounding environment.

[0003] According to a kind of electric arc furnace flue gas dust remover (announcement number: CN220939784U), the dust removal box in the above application is used to spray the dust of flue gas discharged by flue gas discharge pipe, and impurities are intercepted on filter screen, and the heat contained in flue gas is also recycled, thereby saving energy, cooperating with the design of heat conduction plate, the heat recovery effect of spray water on flue gas can be improved, so that the high heat recovery efficiency of device is ensured, satisfy use demand.

[0004] But the above-mentioned equipment in actual use process, dust in dust removal box needs to be cleaned frequently, in this process, worker often close contact with dust, dust at this time is easy to enter the trachea of worker, cause damage to trachea;In view of this, we provide an electric arc furnace flue gas dust remover. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an electric arc furnace flue gas dust remover to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: an electric arc furnace flue gas dust remover, comprising a shell, a gas outlet is formed in the outer wall of the shell, a gas inlet is formed in the outer wall of the shell, a water outlet plate is fixedly connected to the inner wall of the shell close to one end of the water outlet plate, a filter bag is fixedly connected to the inner wall of the shell away from the water outlet plate, a discharge port is formed in the lower end of the shell, a gas outlet pipe is formed in the outer wall of the shell, a dust removal assembly is arranged in the shell, and the dust removal assembly comprises:

[0007] An inclined block is arranged at the opening of the discharge port, a sealing plate is fixedly connected to the outer wall of the inclined block, a support plate is fixedly connected to the outer wall of the sealing plate, and a sleeve is fixedly connected to the outer wall of the shell;

[0008] A connecting block is slidingly connected to the inner wall of the sleeve, the connecting block is fixedly connected with the support plate, a return spring is fixedly connected to one end of the connecting block close to the inner wall of the sleeve, a clamping block is slidingly connected to the inner wall of the sleeve, an extrusion spring is fixedly connected to one end of the clamping block away from the connecting block, and a clamping groove is formed in the outer wall of the connecting block.

[0009] Preferably, the outer part of the shell is provided with a knocking assembly, the knocking assembly comprises a connecting plate, the connecting plate is fixedly connected to the outer wall of the shell, one end of the connecting plate away from the shell is fixedly connected with a sleeve, the inner wall of the sleeve is slidably connected with a knocking rod, the lower end of the knocking rod is fixedly connected with a fixed block, the other end of the fixed block is fixedly connected with a supporting plate, so that the dust on the supporting plate is reduced after the supporting plate is driven, until the clamping block is separated from the clamping groove, at this time the connecting block is reset by the reset spring, the supporting plate is driven to rise by the connecting block, and the knocking rod knocks the shell.

[0010] Preferably, the upper and lower ends of the outer wall of the connecting block are provided with clamping grooves, the number of the clamping blocks is two groups, and the two groups of clamping blocks are mirror-distributed on the two ends of the connecting block.

[0011] Preferably, the outer wall of the inclined block is provided with a curved surface, the area of the inclined block is smaller than the opening size of the discharge port, and the area of the sealing plate is consistent with the opening size of the discharge port, so that the sealing plate can completely block the size of the discharge port, and the flue gas can move better in the shell.

[0012] Preferably, the end of the clamping block away from the extrusion spring is provided with a curved surface, the opening size of the clamping groove is consistent with the shape of the end of the clamping block away from the extrusion spring, and the clamping block is clamped with the clamping groove.

[0013] Preferably, one end of the reset spring away from the connecting block is fixedly connected with the inner wall of the sleeve, and one end of the extrusion spring away from the clamping block is fixedly connected with the inner wall of the sleeve, so that the supporting plate can be separated from the discharge port when the dust accumulates to a certain amount.

[0014] Preferably, the end of the knocking rod close to the shell is provided with a hemispherical rubber block, and the end of the knocking rod away from the fixed block is in contact with the shell, so that the impact between the knocking rod and the shell is prevented.

[0015] Compared with the prior art, the electric arc furnace flue gas dust collector has the following beneficial effects:

[0016] 1. The electric arc furnace flue gas dust collector, when the dust on the sealing plate accumulates to a certain amount, the sealing plate is pressed down, at this time the clamping block is separated from the clamping groove on the upper end of the connecting block, and the clamping block is clamped with the clamping groove on the lower end of the connecting block, when the dust falls out of the shell to a certain degree, the clamping block is driven away from the clamping groove by the reset spring, so that the dust can fall down sufficiently, and the worker is prevented from filtering close to the dust, so that the dust enters the air pipe and causes damage to the worker.

[0017] 2. In this electric arc furnace flue gas dust collector, after the sealing plate is moved by the support plate, the dust on the support plate is reduced until the locking block leaves the slot. At this time, the connecting block is reset by the reset spring, and the support plate is driven to rise by the connecting block, so that the striking rod strikes the outer shell, and the dust adhering to the inner wall of the discharge port can be knocked off, so that the dust in the discharge port can fall out of the outer shell better, and the discharge of the dust collector is more complete. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;

[0020] Figure 3 This is a schematic diagram of the dust removal component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the casing of this utility model.

[0022] In the diagram: 1. Outer shell; 2. Air outlet; 3. Air inlet; 4. Water outlet plate; 5. Filter bag; 6. Discharge port; 7. Air outlet pipe; 8. Dust collection assembly; 81. Inclined block; 82. Sealing plate; 83. Support plate; 84. Shell; 85. Connecting block; 86. Return spring; 87. Locking block; 88. Compression spring; 89. Slot; 9. Impact assembly; 91. Connecting plate; 92. Sleeve; 93. Impact rod; 94. Fixing block. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model provides a technical solution: an electric arc furnace flue gas dust collector, including a shell 1, an air outlet 2 and an air inlet 3 on the outer wall of the shell 1, a water outlet plate 4 fixedly connected to the inner wall of the shell 1 near the water outlet plate 4, a filter bag 5 fixedly connected to the inner wall of the shell 1 away from the water outlet plate 4, a material discharge port 6 at the lower end of the shell 1, an air outlet pipe 7 on the outer wall of the shell 1, and a dust collection assembly 8 inside the shell 1, the dust collection assembly 8 including an inclined block 81, a sealing plate 82, a support plate 83, a sleeve 84, a connecting block 85, a return spring 86, a locking block 87, a compression spring 88, and a locking groove 89.

[0024] In an embodiment of this utility model, the inclined block 81 is disposed at the opening of the feed port 6, the outer wall of the inclined block 81 is fixedly connected to the sealing plate 82, the outer wall of the sealing plate 82 is fixedly connected to the support plate 83, and the outer wall of the outer shell 1 is fixedly connected to the sleeve 84.

[0025] In the embodiment of the utility model, the connecting block 85 is slidably connected to the inner wall of the sleeve shell 84, the connecting block 85 is fixedly connected with the supporting plate 83, a reset spring 86 is fixedly connected to one end of the connecting block 85 close to the inner wall of the sleeve shell 84, the inner wall of the sleeve shell 84 is slidably connected with a clamping block 87, one end of the clamping block 87 away from the connecting block 85 is fixedly connected with an extrusion spring 88, and the outer wall of the connecting block 85 is provided with a clamping groove 89.

[0026] In one embodiment of the utility model, the outer part of the sleeve shell 84 is provided with a knocking assembly 9, the knocking assembly 9 comprises a connecting plate 91, the connecting plate 91 is fixedly connected to the outer wall of the shell 1, one end of the connecting plate 91 away from the shell 1 is fixedly connected with a sleeve 92, the inner wall of the sleeve 92 is slidably connected with a knocking rod 93, the lower end of the knocking rod 93 is fixedly connected with a fixed block 94, and the other end of the fixed block 94 is fixedly connected with the supporting plate 83, so that after the sealing plate 82 is driven by the supporting plate 83, the dust on the supporting plate 83 is reduced, until the clamping block 87 leaves the clamping groove 89, at this time, the connecting block 85 is reset through the reset spring 86, the supporting plate 83 is driven to rise by the connecting block 85, the knocking rod 93 knocks the shell 1, and the dust adhered to the inner wall of the discharging opening 6 can be knocked down, so that the dust in the discharging opening 6 can better fall out of the shell 1, and the dust collector can discharge more completely.

[0027] In one embodiment of the utility model, the upper and lower ends of the outer wall of the connecting block 85 are both provided with the clamping groove 89, the number of the clamping block 87 is two groups, and the two groups of clamping blocks 87 are mirror-distributed at the two ends of the connecting block 85; after the dust on the sealing plate 82 accumulates to a certain amount, the sealing plate 82 is pressed down, at this time, the clamping block 87 leaves the clamping groove 89 at the upper end of the connecting block 85 and is clamped with the clamping groove 89 at the lower end of the connecting block 85; when the dust falls out of the shell 1 to a certain degree, the connecting block 85 is driven by the reset spring 86 to make the clamping block 87 leave the clamping groove 89, so that the dust can fall down sufficiently.

[0028] In one embodiment of the utility model, the outer wall of the inclined block 81 is provided with a camber, the area of the inclined block 81 is smaller than the opening size of the discharging opening 6, and the area of the sealing plate 82 is consistent with the opening size of the discharging opening 6, so that the sealing plate 82 can completely block the size of the discharging opening 6, the flue gas can better move in the shell 1, the flue gas can better be discharged from the air bag, and the dust in the flue gas can be better shaken out by the flue gas dust collector.

[0029] In one embodiment of the utility model, the end of the clamping block 87 away from the extrusion spring 88 is provided with a camber, the opening size of the clamping groove 89 is consistent with the shape of the end of the clamping block 87 away from the extrusion spring 88, the clamping block 87 is clamped with the clamping groove 89, so that the connecting block 85 can only make the supporting plate 83 be driven to descend by the supporting plate 83 after the dust accumulates to a certain amount.

[0030] In an embodiment of the utility model, the one end of reset spring 86 far from connecting block 85 is fixedly connected with the inner wall of sleeve shell 84, the one end of extrusion spring 88 far from clamping block 87 is fixedly connected with the inner wall of sleeve shell 84, after dust falls to a certain amount, support plate 83 can be driven by reset spring 86, and support plate 83 rises.

[0031] In an embodiment of the utility model, the one end of knock rod 93 close to shell 1 is provided with a rubber block of hemisphere type, the one end of knock rod 93 far from fixed block 94 contacts with shell 1, and the rubber block on knock rod 93 can prevent the impact between knock rod 93 and shell 1 from being too large, so that the service time of knock rod 93 is longer.

[0032] In the utility model, when using, the flue gas enters shell 1 through air inlet 3, at this time, the dust in the flue gas is dropped by water outlet plate 4, then the dust in the flue gas can be filtered by filter bag 5, and the purified flue gas is blown out from air outlet 2, then the dust on filter bag 5 is cleaned by blowing gas in filter bag 5, so that the dust falls on inclined block 81, when the dust on sealing plate 82 accumulates to a certain amount, sealing plate 82 is pressed down, at this time, clamping block 87 is away from the clamping groove 89 on the upper end of connecting block 85, and is clamped with the clamping groove 89 on the lower end of connecting block 85, when the dust falls out of shell 1 to a certain degree, connecting block 85 is driven by reset spring 86 to make clamping block 87 away from clamping groove 89, so that the dust can fall down fully, and the worker is prevented from filtering close to the dust, so that the dust enters the air pipe and causes damage to the worker, after sealing plate 82 is driven by support plate 83, the dust on support plate 83 is reduced, until clamping block 87 is away from clamping groove 89, at this time, connecting block 85 is reset by reset spring 86, support plate 83 is driven to rise by connecting block 85, knock rod 93 knocks shell 1, and the dust adhered to the inner wall of discharge port 6 can be knocked down, so that the dust in discharge port 6 can fall out of shell 1 better, and the discharge of dust collector is more complete.

[0033] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modification or improvement without departing from the utility model idea spirit is within the protection scope of the utility model.

Claims

1. A dust collector for flue gas from an electric arc furnace, comprising a shell (1), an air outlet (2) and an air inlet (3) on the outer wall of the shell (1), a water outlet plate (4) fixedly connected to the inner wall of the shell (1) near the water outlet plate (4), a filter bag (5) fixedly connected to the inner wall of the shell (1) away from the water outlet plate (4), a material discharge port (6) at the lower end of the shell (1), and an air outlet pipe (7) on the outer wall of the shell (1), characterized in that: The inside of the shell (1) is provided with a dust removal assembly (8), the dust removal assembly (8) comprises: The outer wall of the inclined block (81) is fixedly connected with a sealing plate (82), the outer wall of the sealing plate (82) is fixedly connected with a supporting plate (83), the outer wall of the shell (1) is fixedly connected with a sleeve shell (84); The outer wall of the connecting block (85) is provided with a clamping groove (89), the number of the clamping block (87) is provided with two groups, and the two groups of the clamping block (87) are mirror distributed on the two ends of the connecting block (85).

2. An electric arc furnace flue gas precipitator according to claim 1, characterized in that: The outer wall of the inclined block (81) is provided with a curved surface, the area of the inclined block (81) is smaller than the opening size of the discharging port (6), and the area of the sealing plate (82) is consistent with the opening size of the discharging port (6).

3. An electric arc furnace flue gas precipitator according to claim 1, characterized in that: The end of the clamping block (87) away from the extrusion spring (88) is provided with a curved surface, the opening size of the clamping groove (89) is consistent with the shape of the end of the clamping block (87) away from the extrusion spring (88), and the clamping block (87) is clamped with the clamping groove (89).

4. An electric arc furnace flue dust precipitator according to claim 1, characterized in that: The end of the reset spring (86) away from the connecting block (85) is fixedly connected with the inner wall of the sleeve shell (84), and the end of the extrusion spring (88) away from the clamping block (87) is fixedly connected with the inner wall of the sleeve shell (84).

5. An electric arc furnace flue dust precipitator according to claim 1, characterized in that: The end of the clamping block (87) away from the extrusion spring (88) is provided with a curved surface, the opening size of the clamping groove (89) is consistent with the shape of the end of the clamping block (87) away from the extrusion spring (88), and the clamping block (87) is clamped with the clamping groove (89).

6. An electric arc furnace flue dust precipitator according to claim 1, characterized in that: The end of the reset spring (86) away from the connecting block (85) is fixedly connected with the inner wall of the sleeve shell (84), and the end of the extrusion spring (88) away from the clamping block (87) is fixedly connected with the inner wall of the sleeve shell (84).

7. An electric arc furnace flue gas precipitator according to claim 2, characterized in that: The end of the clamping block (87) away from the extrusion spring (88) is provided with a curved surface, the opening size of the clamping groove (89) is consistent with the shape of the end of the clamping block (87) away from the extrusion spring (88), and the clamping block (87) is clamped with the clamping groove (89). The end of the reset spring (86) away from the connecting block (85) is fixedly connected with the inner wall of the sleeve shell (84), and the end of the extrusion spring (88) away from the clamping block (87) is fixedly connected with the inner wall of the sleeve shell (84). The end of the clamping block (87) away from the extrusion spring (88) is provided with a curved surface, the opening size of the clamping groove (89) is consistent with the shape of the end of the clamping block (87) away from the extrusion spring (88), and the clamping block (87) is clamped with the clamping groove (89). The end of the reset spring (86) away from the connecting block (85) is fixedly connected with the inner wall of the sleeve shell (84), and the end of the extrusion spring (88) away from the clamping block (87) is fixedly connected with the inner wall of the sleeve shell (84).

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