A high-efficiency dust removal device for metallurgical flue gas

Abstract

The present application discloses a metallurgical flue gas high-efficiency dust removal device, comprising a housing, an electrostatic precipitator unit installed in the housing, a dust cleaning unit installed in the housing, an air inlet hood connected to one end of the housing, an air outlet hood connected to the other end of the housing, and a plurality of ash hoppers installed at the bottom of the housing, wherein the plurality of ash hoppers are distributed in a rectangular array. The flue gas dust removal device of the present application is provided with a plurality of containers, and the pressure sensor at the corresponding position of each container is compared with itself, so that it can judge whether the electrostatic precipitator unit is working normally, so that the judgment is more accurate, and the monitoring capability of the dust cleaning effect can be improved, so as to achieve high-efficiency dust cleaning and reduce the impact of air pollution on the environment and human health. The movable unit can be driven to translate by the driving unit, so that the lower tube part can be opened, so that the dust in the container falls into the conveyor belt and is transported away by the conveyor belt, so as to achieve high-efficiency dust cleaning.

Description

Technical Field

[0001] The present invention relates to the field of flue gas dust removal devices, and more specifically, to a high-efficiency dust removal device for metallurgical flue gas. Background Art

[0002] The flue gas generated during the production process of the metallurgical industry contains a large amount of dust, smoke and harmful gases, which will cause great pollution to the environment and have a serious impact on human health. In order to reduce the emission of pollutants and protect the ecological environment, metallurgical enterprises use metallurgical flue gas dust removal equipment for flue gas treatment.

[0003] The dust removal effect of existing flue gas dust removal devices is sometimes not monitorable. First, some dust removal equipment may not be equipped with a monitoring mechanism, and the dust removal effect cannot be monitored in time. Secondly, problems with the dust removal equipment itself may lead to poor dust removal effects. The dust removal equipment may have quality problems, or it may be damaged and aged due to long-term use, affecting its dust removal effect. In addition, the technical level and management ability of the operator will also affect the dust removal effect. The operation of the dust removal equipment requires experienced technicians to operate and manage. If the operation is improper or the management is not in place, it will also affect the dust removal effect. By the time the dust removal effect is found to be poor, a long period of time may have passed, a large amount of dust-containing flue gas has been discharged, and dust has accumulated and has had a certain impact on the environment and health. Summary of the invention

[0004] The present invention aims to overcome the defects of the prior art and provide a high-efficiency dust removal device for metallurgical flue gas.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a flue gas dust removal device, comprising a box body, an electrostatic precipitator unit installed in the box body, a dust cleaning unit installed in the box body, an air inlet hood connected to one end of the box body, an air outlet hood connected to the other end of the box body, and a plurality of ash hoppers installed at the bottom of the box body, wherein the plurality of ash hoppers are distributed in a rectangular array.

[0006] Furthermore, the electrostatic precipitator unit includes a plurality of anode plates and a plurality of cathode columns, and the dust cleaning unit is used to strike the anode plates so that dust attached to the anode plates falls into the ash hopper.

[0007] The electrostatic precipitator unit can adopt the electrostatic precipitator structure in the prior art, so that the dust with static electricity is adsorbed on the anode plate. The dust cleaning unit can adopt the dust cleaning structure in the prior art, and generate vibration by hitting the anode plate, so as to shake the dust adsorbed on the anode plate into the ash hopper.

[0008] Furthermore, it also includes a containing unit, a frame unit and an opening and closing unit, the ash hopper includes a hopper part fixedly connected to the box body and a discharge pipe fixedly connected to the hopper part; the containing unit includes a plurality of containing containers distributed in a rectangular array, the number of the containing containers is equal to the number of the ash hoppers and the two correspond one to one, the top end of the containing container is connected to an upper tube part inserted by the discharge pipe, the bottom end is connected to a lower tube part, a closing plate is inserted in the lower tube part, an end plate is fixed at the end of the closing plate, an end block is fixed at the end plate, the end block has a through hole, a tension spring is connected between the end plate and the lower tube part, a plurality of limit guide rods and a plurality of support blocks are fixed at the containing container; the frame unit includes a top plate and a rectangular frame-shaped surrounding plate fixedly connected to the top plate, the top plate having a plurality of support frames and a plurality of through-hole portions, the plurality of support frames and the plurality of through-hole portions are distributed in a rectangular array, and the number of support frames, through-hole portions and containers is equal, and each lower tube portion is inserted into one of the through-hole portions; the support frame comprises a rectangular frame-shaped support plate and a plurality of support legs connecting the support plate and the top plate, the support plate having a plurality of limit guide holes matched with the limit guide rod; the support plate having a groove portion, the groove portion having an installation groove, a pressure sensor being installed in the installation groove, and the bottom end of one of the plurality of support blocks at each container presses the pressure sensor; the opening and closing unit can open the closing plate.

[0009] Therefore, the pressure sensor at the corresponding position of each container can be compared with itself to determine whether the electrostatic precipitator unit is working normally, thereby making the judgment more accurate and improving the monitoring capability of the cleaning effect.

[0010] Furthermore, the opening and closing unit includes a movable unit and a driving unit, the movable unit can move horizontally in the frame unit, the driving unit includes a driving motor installed at the frame unit, a bearing seat installed at the frame unit, a bearing installed at the bearing seat, and a screw installed between the driving motor and the bearing, the movable unit includes two side plates and multiple groups of cross plates connected between the two side plates, each group of cross plates includes an upper plate body and a lower plate body parallel to each other, a plurality of connecting columns are connected between the upper plate body and the lower plate body, all the connecting columns at the movable unit are distributed in a rectangular array, the number of the connecting columns is equal to the number of the end blocks and the two correspond one to one, each connecting column passes through one of the through holes, a connecting seat is connected between the upper plate body and the lower plate body of a group of cross plates closest to the driving motor, and the connecting seat has a threaded hole that cooperates with the screw.

[0011] The movable unit can be driven to translate by the driving unit, so that each connecting column can pull a closing plate, so that the lower tube part is opened or closed.

[0012] Furthermore, the ash hoppers are distributed in a 3×6 rectangular array.

[0013] Furthermore, it also includes a conveyor belt unit, which includes a conveyor belt. Both ends of the surrounding plate have rectangular through holes, and the conveyor belt passes through the rectangular through holes at both ends of the surrounding plate.

[0014] Thereby the conveyor belt can transport away the dust falling from the lower pipe part.

[0015] Furthermore, each support plate has one groove portion, one mounting groove and one pressure sensor.

[0016] In some embodiments, each support plate has four groove portions, four mounting slots, and four pressure sensors, and the bottom end of each support block presses one pressure sensor.

[0017] This method of measurement can thus provide a more accurate measurement of the weight of the container.

[0018] Furthermore, each containing container is connected with 8 limiting guide rods and 4 supporting blocks.

[0019] Furthermore, there are two of each of the driving unit and the connecting socket.

[0020] Thereby, the driving of the active unit is more stable.

[0021] Furthermore, the lower tube portion has a strip-shaped opening and a first horizontal slide rail.

[0022] Furthermore, the closing plate has a first horizontal slide groove matched with a first horizontal slide rail, and the closing plate is inserted into the strip-shaped opening.

[0023] This helps the closing plate to move more smoothly.

[0024] Furthermore, the rack unit has a second horizontal slide rail, and the side panel has a second horizontal slide groove that matches the second horizontal slide rail.

[0025] This helps the movable unit to translate more smoothly.

[0026] Beneficial effects:

[0027] 1. The flue gas dust removal device of the present application is provided with multiple ash hoppers and multiple containers. The cleaning unit can hit the anode plate to generate vibration, thereby shaking the dust adsorbed on the anode plate into the ash hopper. The dust in the ash hopper falls into the container through the discharge pipe for collection.

[0028] 2. In the flue gas dust removal device of the present application, the pressure sensor at the corresponding position of each container can be compared with itself to determine whether the electrostatic precipitator unit is working normally, thereby making the judgment more accurate and improving the monitoring capability of the cleaning effect, thereby achieving efficient cleaning and reducing the impact of air pollution on the environment and human health.

[0029] 3. In the flue gas dust removal device of the present application, the driving unit drives the movable unit to translate, thereby opening the lower tube portion, so that the dust in the container falls into the conveyor belt and is transported away through the conveyor belt, thereby achieving efficient dust cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of a dust removal device;

[0031] Figure 2 Schematic diagram of the dust removal device when the lower tube portion is closed by the closing plate;

[0032] Figure 3 The schematic diagram of the dust removal device is shown when the closing plate is opened;

[0033] Figure 4 A schematic diagram of the separation of the dust removal device components from a first perspective;

[0034] Figure 4A This is an enlarged schematic diagram of area 4A;

[0035] Figure 4B This is an enlarged schematic diagram of area 4B;

[0036] Figure 4C This is an enlarged schematic diagram of the 4C area;

[0037] Figure 5 A schematic diagram showing the separation of the dust removal device components from a second perspective;

[0038] Figure 5A This is an enlarged schematic diagram of area 5A;

[0039] Figure 5B This is an enlarged schematic diagram of area 5B;

[0040] Figure 5C This is an enlarged schematic diagram of the 5C area; for the sake of clarity, Figure 2-5C The conveying unit is omitted.

[0041] Description of reference numerals: 1 housing; 1.1 air inlet hood; 1.2 air outlet hood; 2 ash hopper; 2.1 hopper portion; 2.2 feed pipe; 3 container; 3.1 upper pipe portion; 3.2 lower pipe portion; 3.2.1 tension spring; 3.2.2 first horizontal slide rail; 3.3 closing plate; 3.4 end plate; 3.5 end block; 3.5.1 perforation; 3.6 limiting guide rod; 3.7 support block; 4.1 top plate; 4.1.1 through hole portion; 4 .2 surrounding plate; 4.2.1 rectangular through hole; 4.3 supporting plate; 4.3.1 limiting guide hole; 4.3.2 groove portion; 4.4 supporting leg; 4.5 pressure sensor; 5.1 driving motor; 5.2 bearing seat; 5.3 bearing; 5.4 screw rod; 6.1 side plate; 6.1.1 second horizontal slide groove; 6.2 upper plate body; 6.3 lower plate body; 6.4 connecting column; 6.5 connecting seat; 6.5.1 threaded hole; 7 conveyor belt. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0043] The present invention provides Figure 1-5 A high-efficiency dust removal device for metallurgical flue gas shown in the figure comprises a box body 1, an electrostatic precipitator unit installed in the box body 1, a dust cleaning unit installed in the box body 1, an air inlet hood 1.1 connected to one end of the box body 1, an air outlet hood 1.2 connected to the other end of the box body 1, and a plurality of ash hoppers 2 installed at the bottom of the box body 1, wherein the plurality of ash hoppers 2 are distributed in a rectangular array.

[0044] The electrostatic precipitator unit includes a plurality of anode plates and a plurality of cathode columns, and the dust cleaning unit is used to strike the anode plates so that the dust attached to the anode plates falls into the ash hopper 2 .

[0045] The dust removal device also includes a containing unit, a frame unit and an opening and closing unit. The ash hopper 2 includes a hopper portion 2.1 fixedly connected to the box body 1 and a discharge pipe 2.2 fixedly connected to the hopper portion 2.1; the containing unit includes a plurality of containing containers 3 distributed in a rectangular array, the number of the containing containers 3 is equal to the number of the ash hoppers 2 and the two correspond one to one, the top of the containing container 3 is connected to an upper pipe portion 3.1 inserted into the discharge pipe 2.2, and the bottom is connected to a lower pipe portion 3. .2, a closing plate 3.3 is inserted into the lower tube portion, an end plate 3.4 is fixed to the end of the closing plate 3.3, an end block 3.5 is fixed to the end plate 3.4, and the end block 3.5 has a through hole 3.5.1, a tension spring 3.2.1 is connected between the end plate 3.4 and the lower tube portion 3.2, and a plurality of limiting guide rods 3.6 and a plurality of supporting blocks 3.7 are fixed to the container 3; the frame unit includes a top plate 4.1 and a top plate 4.1 fixed to the top plate 4.1 The top plate 4.1 has a plurality of support frames and a plurality of through-hole portions 4.1.1, and the plurality of support frames and the plurality of through-hole portions 4.1.1 are distributed in a rectangular array, and the number of support frames, through-hole portions 4.1.1 and the container 3 is equal, and each lower tube portion 3.2 is inserted into one of the through-hole portions 4.1.1; the support frame includes a rectangular frame-shaped support plate 4.3 and a plurality of support legs connecting the support plate 4.3 and the top plate 4.1 4.4, the support plate 4.3 has a plurality of limit guide holes 4.3.1 that cooperate with the limit guide rod 3.6; the support plate 4.3 has a groove portion 4.3.2, the groove portion 4.3.2 has a mounting groove, a pressure sensor 4.5 is installed in the mounting groove, and the bottom end of one of the plurality of support blocks 3.7 at each container 3 presses the pressure sensor 4.5; the opening and closing unit can open the closing plate 3.3.

[0046] The dust removal device further comprises a movable unit and a driving unit, wherein the movable unit can move horizontally in the frame unit, wherein the driving unit comprises a driving motor 5.1 mounted on the frame unit, a bearing seat 5.2 mounted on the frame unit, a bearing 5.3 mounted on the bearing seat, and a screw rod 5.4 mounted between the driving motor 5.1 and the bearing 5.3, wherein the movable unit comprises two side plates 6.1 and a plurality of sets of transverse plates connected between the two side plates 6.1, wherein each set of transverse plates comprises an upper plate body 6.2 and a lower plate body 6.6 parallel to each other. 3. A plurality of connecting posts 6.4 are connected between the upper plate body 6.2 and the lower plate body 6.3. All the connecting posts 6.4 at the movable unit are distributed in a rectangular array. The number of the connecting posts 6.4 is equal to the number of the end blocks 3.5 and the two correspond one to one. Each connecting post 6.4 passes through one of the through holes 3.5.1. A connecting seat 6.5 is connected between the upper plate body 6.2 and the lower plate body 6.3 of a group of transverse plates closest to the drive motor 5.1. The connecting seat 6.5 has a threaded hole 6.5.1 that cooperates with the screw rod.

[0047] The dust removal device also includes a conveyor belt unit, which includes a conveyor belt. Both ends of the surrounding plate 4.2 have rectangular through holes 4.2.1, and the conveyor belt passes through the rectangular through holes 4.2.1 at both ends of the surrounding plate; each support plate 4.3 has a groove portion 4.3.2, a mounting groove and a pressure sensor 4.5; each containing container 3 is connected with 8 limiting guide rods 3.6 and 4 supporting blocks 3.7; the driving unit and the connecting seat 6.5 each have two; the lower tube portion 3.2 has a strip opening and a first horizontal slide rail 3.2.2; the closing plate 3.3 has a first horizontal slide groove that cooperates with the first horizontal slide rail, and the closing plate is inserted into the strip opening; the rack unit has a second horizontal slide rail, and the side plate 6.1 has a second horizontal slide groove 6.1.1 that cooperates with the second horizontal slide rail.

[0048] Working principle: The flue gas dust removal device of the present application, the flue gas used for metallurgy, comes in from the near-side smoke hood, passes through the dust removal box, and the flue gas after dust removal goes out from the exhaust smoke hood. Multiple ash hoppers and multiple containers are set. The cleaning unit can hit the anode plate to generate vibration, so that the dust adsorbed on the anode plate can be shaken into the ash hopper. The dust in the ash hopper falls into the container through the discharge pipe for collection. The pressure sensor at the corresponding position of each container is compared with itself to determine whether the electrostatic precipitator unit is working normally, so that the judgment is more accurate, and the monitoring ability of the cleaning effect can be improved, thereby achieving efficient cleaning and reducing the impact of air pollution on the environment and human health. The driving unit can drive the movable unit to move horizontally, so that the lower pipe part can be opened, so that the dust in the container falls into the conveyor belt and is transported away by the conveyor belt, thereby achieving efficient dust cleaning.

[0049] During the flue gas emission process, under normal circumstances, the working conditions of the production line are similar, and the dust content of the emitted flue gas is also similar. Under the condition of normal operation of the dust removal equipment, the amount of dust collected and falling into the ash hopper within a certain period of time is similar (the ash hoppers at different positions in the rectangular array are located in different upstream and downstream positions of the flue gas flow, so the amount of dust received will be different, but the amount of dust received by each ash hopper within a certain period of time is similar compared to itself, and there will not be a big deviation). If the dust falling into a certain ash hopper in a certain period of time is significantly smaller than that of the ash hopper itself, it means that there is a problem with the dust removal, and a large amount of dust has not been removed and has flowed downstream.

[0050] During normal cleaning, the connecting column does not pull the end block, so that the closing plate is not pulled, and the closing plate keeps the lower tube portion in a closed state, so that the dust falling from the ash hopper will fall into the containing container, and the weight of the containing container will be supported by the supporting block, so that according to the measurement value of the pressure sensor, the amount of dust in the containing container can be known (it is not necessary to know the absolute value of the amount of dust, it is only necessary to know whether the measurement value of the pressure sensor is abnormal relative to the previous cycle), so as to judge whether there is any abnormality in the operation of the electrostatic precipitator unit according to the measurement value of the pressure sensor.

[0051] After the setting time, there is more dust in the container. At this time, the driving unit drives the active unit to translate, so that each connecting column pulls a closing plate, so that the lower tube is opened, and the dust in the container falls into the conveyor belt and is transported away. Then the active unit is reset, the closing plate closes the lower tube again, and the container continues to hold dust. In each cycle (that is, the time period from when the closing plate is opened to when the closing plate is opened next time), the measured value of the pressure sensor is a process of slowly increasing from small to large. Under normal circumstances, the measured value changes of the same pressure sensor are similar in each cycle. When there is an obvious abnormality, it means that the electrostatic precipitator unit has a fault and the dust removal effect has deteriorated, which can remind maintenance.

[0052] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A high-efficiency dust removal device for metallurgical flue gas, characterized in that: The dust collecting device comprises a box body, an electrostatic precipitator unit installed in the box body, a dust cleaning unit installed in the box body, an air inlet hood connected to one end of the box body, an air outlet hood connected to the other end of the box body, and a plurality of ash hoppers installed at the bottom of the box body, wherein the plurality of ash hoppers are distributed in a rectangular array; the electrostatic precipitator unit comprises a plurality of anode plates and a plurality of cathode columns, and the dust cleaning unit is used to strike the anode plates so that the dust attached to the anode plates falls into the ash hopper; the dust collecting device further comprises a containing unit, a rack unit and an opening and closing unit, and the ash hopper comprises a hopper part fixedly connected to the box body and a discharge pipe fixedly connected to the hopper part; the containing unit comprises a plurality of containing containers distributed in a rectangular array, and the number of the containing containers is equal to the number of the ash hoppers. The number of the two corresponds one to one, the top of the containing container is connected to an upper tube portion inserted by a discharge tube, the bottom end is connected to a lower tube portion, a closing plate is inserted in the lower tube portion, the end of the closing plate is fixed with an end plate, an end block is fixed at the end plate, the end block has a through hole, a tension spring is connected between the end plate and the lower tube portion, a plurality of limiting guide rods and a plurality of support blocks are fixed at the containing container; the frame unit includes a top plate and a rectangular frame-shaped surrounding plate fixedly connected to the top plate, the top plate has a plurality of support frames and a plurality of through-hole portions, the plurality of support frames and the plurality of through-hole portions are distributed in a rectangular array, and the number of support frames, through-hole portions and containing containers is equal, and each lower tube portion is inserted with one through-hole The support frame includes a rectangular frame-shaped support plate and a plurality of support legs connecting the support plate and the top plate, and the support plate has a plurality of limit guide holes that cooperate with the limit guide rods; the support plate has a groove portion, and the groove portion has an installation groove, and a pressure sensor is installed in the installation groove, and the bottom end of one of the support blocks at the plurality of support blocks at each container presses the pressure sensor; the pressure sensor at the corresponding position of each container is compared with itself, so as to judge whether the electrostatic precipitator unit is working normally; the opening and closing unit can open the closing plate; the dust removal device also includes a movable unit and a driving unit, and the movable unit can move horizontally in the frame unit, and the driving unit The element includes a driving motor installed at the frame unit, a bearing seat installed at the frame unit, a bearing installed at the bearing seat, and a screw installed between the driving motor and the bearing, the movable unit includes two side plates and multiple groups of cross plates connected between the two side plates, each group of cross plates includes an upper plate body and a lower plate body parallel to each other, a plurality of connecting columns are connected between the upper plate body and the lower plate body, all the connecting columns at the movable unit are distributed in a rectangular array, the number of the connecting columns is equal to the number of the end blocks and the two correspond one to one, each connecting column passes through one of the through holes, a connecting seat is connected between the upper plate body and the lower plate body of a group of cross plates closest to the driving motor, and the connecting seat has a threaded hole that cooperates with the screw;The dust removal device further includes a conveyor belt unit, wherein the conveyor belt unit includes a conveyor belt, and both ends of the surrounding plate have rectangular through holes, and the conveyor belt passes through the rectangular through holes at both ends of the surrounding plate.

2. The high-efficiency dust removal device for metallurgical flue gas according to claim 1, characterized in that: Each support plate is provided with a groove portion, a mounting slot and a pressure sensor; each containing container is connected with 8 limiting guide rods and 4 supporting blocks.

3. The high-efficiency dust removal device for metallurgical flue gas according to claim 1, characterized in that: There are two of each of the driving units and the connecting base.

4. The high-efficiency dust removal device for metallurgical flue gas according to claim 1, characterized in that: The lower tube portion is provided with a strip-shaped opening and a first horizontal slide rail; the closing plate is provided with a first horizontal slide groove matched with the first horizontal slide rail, and the closing plate is inserted into the strip-shaped opening.

5. The high-efficiency dust removal device for metallurgical flue gas according to claim 1, characterized in that: The rack unit is provided with a second horizontal slide rail, and the side panel is provided with a second horizontal slide groove matched with the second horizontal slide rail.

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