Submerged arc furnace flue gas collecting device

Abstract

The utility model discloses a submerged arc furnace flue gas collecting device which comprises a first box body, the top of the first box body is fixedly connected with a second box body and a third box body respectively, a water pump is fixedly installed on the outer side of the first box body, and a water spraying pipe is arranged in the first box body. A first net plate, an activated carbon layer, a gravel layer and a sponge layer are arranged in the first box body, a switch is fixedly installed on the outer side of the second box body, and smoke is pumped into the third box body through a centrifugal fan and preliminarily filtered and purified through cooperation of a net cover, a second net plate and barrier cotton; the flue gas is secondarily filtered through a plurality of filter screen plates arranged in the second box body, and finally water in the first box body is pumped into a water spraying pipe through a water pump to spray and filter the flue gas, so that the device can be used for filtering and purifying the flue gas for multiple times after collecting the flue gas, and the filtering effect of the device is further improved.

Description

Technical Field

[0001] The utility model relates to a smoke treatment device, in particular to a smoke collecting device for a submerged arc furnace. Background Art

[0002] Submerged arc furnace is also called electric arc furnace or resistance furnace. It is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent and solvent. The main ferroalloys produced are ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc., which are important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide.

[0003] During the smelting process of high-purity ferrosilicon ore-fired furnace, some smoke is generated due to operations such as pouring molten iron, opening furnace eyes, unstable furnace conditions, ignition, furnace pounding, material collapse, and charging, and is discharged from the windows of the smelting workshop in an unorganized form. This is a major environmental problem in the ferrosilicon smelting industry. Therefore, a ore-fired furnace smoke collection device is proposed to optimize and solve the above problems. Utility Model Content

[0004] The utility model aims to provide a fume collecting device for a submerged arc furnace to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A smoke collection device for an electric arc furnace comprises a first box body, a second box body and a third box body are fixedly connected to the top of the first box body respectively, a water pump is fixedly installed on the outside of the first box body, a water spray pipe is arranged inside the first box body, a first mesh plate, an activated carbon layer, a gravel layer and a sponge layer are respectively arranged inside the first box body, a switch is fixedly installed on the outside of the second box body, a battery is fixedly installed on the top of the second box body, a centrifugal fan is fixedly installed on the top of the second box body, an air inlet pipe is fixedly connected to the air inlet of the second box body, a plurality of filter mesh plates are fixedly connected to the inner wall of the second box body at equal distances by fixing bolts, a mesh cover is fixedly connected to the inner wall of the third box body, a second mesh plate is fixedly connected to the inner wall of the third box body, barrier cotton is placed on the top of the second mesh plate, and a first box door, a second box door and a third box door are respectively arranged on the front surfaces of the first box body, the second box door and the third box door.

[0007] As a further solution of the utility model: a walking wheel is fixedly installed on the bottom of the first box body, a water inlet pipe is fixedly connected to the water inlet of the first box body, a valve is provided on the water inlet pipe, and a water outlet pipe is fixedly connected to the water outlet of the first box body, a valve is provided on the water outlet pipe.

[0008] As a further solution of the utility model: the second box body and the third box body are attached to each other on opposite sides and fixedly connected, the water spray pipe is fixedly connected to the inner wall of the first box body, a plurality of water spray holes are provided on the water spray pipe, the water inlet of the water spray pipe is fixedly connected to the water outlet of the water pump through a conduit, the water inlet of the water pump is fixedly connected to the water outlet of the first box body through a conduit, and a ventilation mesh is provided on the first box body.

[0009] As a further solution of the utility model: the outer side of the first mesh plate is fixedly connected to the inner wall of the first box, the activated carbon layer is placed above the first mesh plate, the gravel layer is placed above the activated carbon layer, the sponge layer is placed above the gravel layer, the centrifugal fan air inlet is fixedly connected to the third box air outlet through a conduit, the centrifugal fan air outlet is fixedly connected to the second box air inlet through a conduit, and the second box air outlet is fixedly connected to the first box air inlet through a conduit.

[0010] As a further solution of the utility model: one side of the first door, the second door and the third door is hinged to the front surfaces of the first box body, the second box body and the third box body through a hinge seat, and the front surfaces of the first door, the second door and the third door are respectively fixedly connected with a handle.

[0011] As a further solution of the utility model: the water pump and the centrifugal fan are electrically connected to a switch through a wire, and the switch is electrically connected to a battery through a wire.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] A centrifugal fan is provided to pump the smoke into the third box body, where it is initially filtered and purified through the cooperation of the mesh cover, the second mesh plate and the barrier cotton, and a plurality of filter mesh plates are provided in the second box body to perform a secondary filtering operation on the smoke. Finally, a water pump is used to pump the water in the first box body into the water spray pipe to spray and filter the smoke. In this way, the device can perform multiple filtering and purification treatments after collecting the smoke, thereby further improving the filtering effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the smoke collection device of the submerged arc furnace.

[0015] Figure 2 This is a schematic diagram of the structure at point A in the smoke collection device of the submerged arc furnace.

[0016] Figure 3 This is a front view of the fume collection device of the submerged arc furnace.

[0017] As shown in the figure: a first box body 1, running wheels 2, a second box body 3, a third box body 4, a water pump 5, a water spray pipe 6, a first mesh plate 7, an activated carbon layer 8, a gravel layer 9, a sponge layer 10, a switch 11, a battery 12, a centrifugal fan 13, a filter mesh plate 14, a mesh cover 15, a second mesh plate 16, barrier cotton 17, a first box door 18, a second box door 19 and a third box door 20. 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] See also Figures 1 to 3 In the embodiment of the utility model, a smoke collection device for a mineral arc furnace includes a first box body 1, a walking wheel 2, a second box body 3, a third box body 4, a water pump 5, a water spray pipe 6, a first mesh plate 7, an activated carbon layer 8, a gravel layer 9, a sponge layer 10, a switch 11, a battery 12, a centrifugal fan 13, a filter mesh plate 14, a mesh cover 15, a second mesh plate 16, a barrier cotton 17, a first box door 18, a second box door 19 and a third box door 20. The walking wheel 2 is fixedly installed at the bottom of the first box body 1, a water inlet pipe is fixedly connected to the water inlet of the first box body 1, and a valve is arranged on the water inlet pipe. The water outlet of the first box body 1 is fixedly connected to the water outlet pipe, and a valve is arranged on the water outlet pipe. The top of the first box body 1 is respectively fixedly connected to the second box body 3 and the third box body 4, and the second box body 3 and the third box body 4 are fixedly connected to the top of the first box body 1. The opposite sides are adhered and fixedly connected, a water pump 5 is fixedly installed on the outside of the first box body 1, a water spray pipe 6 is arranged inside the first box body 1, the water spray pipe 6 is fixedly connected to the inner wall of the first box body 1, a plurality of water spray holes are opened on the water spray pipe 6, the water inlet of the water spray pipe 6 is fixedly connected to the water outlet of the water pump 5 through a conduit, the water inlet of the water pump 5 is fixedly connected to the water outlet of the first box body 1 through a conduit, a ventilation mesh is opened on the first box body 1, a first mesh plate 7, an activated carbon layer 8, a gravel layer 9 and a sponge layer 10 are respectively arranged inside the first box body 1, the outer side of the first mesh plate 7 is fixedly connected to the inner wall of the first box body 1, the activated carbon layer 8 is placed above the first mesh plate 7, the gravel layer 9 is placed above the activated carbon layer 8, and the sponge layer 10 is placed above the gravel layer 9.

[0020] A switch 11 is fixedly installed on the outside of the second box body 3, a battery 12 is fixedly installed on the top of the second box body 3, a centrifugal fan 13 is fixedly installed on the top of the second box body 3, an air inlet pipe is fixedly connected to the air inlet of the second box body 3, a plurality of filter screens 14 are fixedly connected to the inner wall of the second box body 3 at equal distances by fixing bolts, a mesh cover 15 is fixedly connected to the inner wall of the third box body 4, the mesh of the mesh cover 15 is a large-diameter mesh, a second mesh plate 16 is fixedly connected to the inner wall of the third box body 4, and a barrier cotton 17 is placed on the top of the second mesh plate 16, the air inlet of the centrifugal fan 13 is fixedly connected to the air outlet of the third box body 4 through a conduit, and the air outlet of the centrifugal fan 13 is fixedly connected to the air outlet of the third box body 4 through a conduit. The duct is fixedly connected to the air inlet of the second box body 3, and the air outlet of the second box body 3 is fixedly connected to the air inlet of the first box body 1 through the duct. The front surfaces of the first box body 1, the second box body 3 and the third box body 4 are respectively provided with a first box door 18, a second box door 19 and a third box door 20, and one side of the first box door 18, the second box door 19 and the third box door 20 are respectively hinged to the front surfaces of the first box body 1, the second box body 3 and the third box body 4 through a hinge seat, and the front surfaces of the first box door 18, the second box door 19 and the third box door 20 are respectively fixedly connected with a handle, and the water pump 5 and the centrifugal fan 13 are electrically connected to the switch 11 through a wire, and the switch 11 is electrically connected to the battery 12 through a wire.

[0021] The working principle of the utility model is:

[0022] When it is necessary to use the ore-heating furnace smoke collection device, the personnel first move the device to the ore-heating furnace smoke discharge position through the walking wheel 2, further open the valve on the water inlet pipe to pour an appropriate amount of water into the first box body 1, further connect the switch 11 with the battery 12, further connect the smoke outlet of the ore-heating furnace equipment with the air inlet pipe of the third box body 4 through a conduit, further start the centrifugal fan 13 to inhale the third box body 4 to generate negative pressure, and further the smoke enters the third box body 4 under the pumping of the centrifugal fan 13, and then the larger impurities in the smoke will be initially filtered and purified under the cooperation of the mesh cover 15, the second mesh plate 16 and the barrier cotton 17, and then the smoke will be transported to the second box body 3 through the conduit after the initial filtration, and then the smoke will pass through multiple filter mesh plates 14 in the second box body 3 for secondary filtration operation, and then The flue gas after the secondary filtration is again transported to the first box body 1 through the conduit, and the water pump 5 is further started to pump the water in the first box body 1 into the water spray pipe 6, and the flue gas is sprayed through the water spray holes on the water spray pipe 6. The fine impurities in the flue gas are transformed into solids after contacting with water and fall onto the sponge layer 10, and the water finally falls into the bottom of the inner side of the first box body 1 after penetrating the sponge layer 10, the gravel layer 9, the activated carbon layer 8 and the first mesh plate 7. The water is then started to transport the water to the water spray pipe 6 through the conduit for recycling, and the flue gas after the thrice filtration is discharged through the ventilation mesh holes on the first box body 1, thereby completing the filtration and purification treatment after the flue gas is collected. Finally, the personnel can clean the first box body 1, the second box body 3 and the third box body 4 by opening the first box door 18, the second box door 19 and the third box door 20.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fume collection device for a submerged arc furnace, comprising a first box (1), characterized in that: The top of the first box (1) is respectively fixedly connected to the second box (3) and the third box (4); a water pump (5) is fixedly installed on the outside of the first box (1); a water spray pipe (6) is arranged inside the first box (1); a first mesh plate (7), an activated carbon layer (8), a gravel layer (9) and a sponge layer (10) are respectively arranged inside the first box (1); a switch (11) is fixedly installed on the outside of the second box (3); a battery (12) is fixedly installed on the top of the second box (3); and a centrifugal fan (13) is fixedly installed on the top of the second box (3). ), an air inlet is fixedly connected to the air inlet of the second box (3), a plurality of filter screens (14) are fixedly connected to the inner wall of the second box (3) at equal distances by fixing bolts, a mesh cover (15) is fixedly connected to the inner wall of the third box (4), a second screen (16) is fixedly connected to the inner wall of the third box (4), a barrier cotton (17) is placed on the top of the second screen (16), and the front surfaces of the first box (1), the second box (3) and the third box (4) are respectively provided with a first box door (18), a second box door (19) and a third box door (20).

2. The fume collecting device for a submerged arc furnace according to claim 1, characterized in that: A running wheel (2) is fixedly mounted on the bottom of the first box body (1); a water inlet of the first box body (1) is fixedly connected to a water inlet pipe, on which a valve is arranged; a water outlet of the first box body (1) is fixedly connected to a water outlet pipe, on which a valve is arranged.

3. The fume collecting device for a submerged arc furnace according to claim 1, characterized in that: The second box body (3) and the third box body (4) are attached to each other at opposite sides and fixedly connected. The water spray pipe (6) is fixedly connected to the inner wall of the first box body (1). A plurality of water spray holes are provided on the water spray pipe (6). The water inlet of the water spray pipe (6) is fixedly connected to the water outlet of the water pump (5) through a conduit. The water inlet of the water pump (5) is fixedly connected to the water outlet of the first box body (1) through a conduit. A ventilation mesh is provided on the first box body (1).

4. The fume collecting device for a submerged arc furnace according to claim 1, characterized in that: The outer side of the first mesh plate (7) is fixedly connected to the inner wall of the first box body (1), the activated carbon layer (8) is placed above the first mesh plate (7), the gravel layer (9) is placed above the activated carbon layer (8), and the sponge layer (10) is placed above the gravel layer (9). The air inlet of the centrifugal fan (13) is fixedly connected to the air outlet of the third box body (4) through a conduit, the air outlet of the centrifugal fan (13) is fixedly connected to the air inlet of the second box body (3) through a conduit, and the air outlet of the second box body (3) is fixedly connected to the air inlet of the first box body (1) through a conduit.

5. The fume collecting device for a submerged arc furnace according to claim 1, characterized in that: One side of the first box door (18), the second box door (19) and the third box door (20) is hinged to the front surface of the first box body (1), the second box body (3) and the third box body (4) through a hinge seat, and the front surface of the first box door (18), the second box door (19) and the third box door (20) is fixedly connected to a handle.

6. The fume collecting device for a submerged arc furnace according to claim 1, characterized in that: The water pump (5) and the centrifugal fan (13) are electrically connected to the switch (11) via a wire, and the switch (11) is electrically connected to the battery (12) via a wire.

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