Dust removal device for waste steel recovery and descaling
By designing a dust removal device including a dust inlet box, a dust removal bag, a induced fan and a dust removal mechanism, the problem of low dust removal efficiency in the prior art is solved, and efficient capture and filtration of smoke and dust is achieved, which significantly reduces the emission of pollutants.
Patent Information
- Application Number
- CN202420789320.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-16
AI Technical Summary
During the scrap steel recycling and descaling process, the existing dust removal device has low efficiency in the capture of smoke and dust, resulting in a large amount of pollutants being discharged into the environment and causing serious air pollution.
A dust removal device including a dust inlet box, a dust removal bag, a induced fan, and a dust removal mechanism is designed. The dust removal mechanism includes a dust removal box, a blower, a air guide duct, a water spray assembly, a filter and a limiting member. The pumped air is sprayed through the water spray assembly and filtered through the filter, improving the dust removal effect.
It significantly improves the efficiency of smoke and dust capture, reduces pollutant emissions, meets environmental protection requirements, and prevents large amounts of dust from being emitted into the air to pollute the air.
Smart Images
Figure CN222605853U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of scrap steel recycling, in particular to a dust removal device for scrap steel recycling and descaling. Background Art
[0002] Scrap steel refers to the steel waste (such as trimmings, ends, etc.) that does not become products in the production process of steel mills, as well as the steel materials in equipment and components that are scrapped after use. Scrap steel is steel, and scrap iron is pig iron. They are collectively called scrap steel. The total amount of scrap steel produced in the world each year is 300 to 400 million tons, accounting for about 45 to 50% of the total steel production, of which 85 to 90% is used as raw materials for steelmaking.
[0003] In the process of scrap steel recycling and descaling, the application of dust removal equipment becomes particularly important. Some dust removal equipment has low efficiency in capturing smoke and dust during the process of scrap steel recycling and descaling, resulting in a large amount of pollutants being discharged into the environment, causing serious air pollution. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a dust removal device for scrap steel recycling and descaling, which has the advantages of good dust removal effect and the like. It solves the problem that some dust removal devices have low efficiency in capturing smoke and dust during the scrap steel recycling and descaling process, resulting in a large amount of pollutants being discharged into the environment, causing serious air pollution.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust removal device for scrap steel recycling and descaling, comprising a dust inlet box, an induced draft fan is fixed on the upper surface of the dust inlet box, a dust bag is arranged in the inner cavity of the dust inlet box, a dust inlet hole is opened at the bottom of the left side of the dust inlet box, an ash hopper is fixed on the lower surface of the dust bag, and a dust removal mechanism for improving the dust removal effect is arranged on the right side of the dust inlet box;
[0006] The dust removal mechanism includes a dust removal box, a blower, an air duct, a water spray assembly, a filter and two limit members. The dust removal box is arranged on the right side of the dust inlet box, and the blower is fixed on the right side of the dust removal box. One end of the air duct passes through the right side wall of the inner cavity of the dust inlet box and is connected with the inner cavity of the dust inlet box. The water spray assembly is arranged on the upper surface of the dust removal box and is used to remove dust from the drawn air. The filter is arranged on the top of the inner cavity of the dust removal box, and the two limit members are respectively arranged at the bottom of the opposite side of the left and right side walls of the inner cavity of the dust removal box.
[0007] By adopting this technical solution, the efficiency of capturing smoke and dust is improved, and the pollutants generated during the recycling and descaling of scrap steel are filtered and treated, so that the pollutant emissions can meet environmental protection requirements and prevent large amounts of dust from being emitted into the air to pollute the air.
[0008] Furthermore, the air inlet end of the blower is connected to the inner cavity of the dust removal bag, and the other end of the air duct is fixed to the left side of the dust removal box and connected to the inner cavity of the dust removal box.
[0009] By adopting this technical solution, the blower can draw the air after the initial dust removal into the dust removal box through the air duct.
[0010] Furthermore, the water spray assembly includes a water pump, a water outlet pipe, a hollow plate and a nozzle. The water pump is fixed at the right end of the upper surface of the dust removal box, one end of the water outlet pipe is connected to the water outlet end of the water pump, the hollow plate is fixed to the inner top wall of the dust removal box, and the nozzle is connected to the lower surface of the hollow plate.
[0011] By adopting this technical solution, the drawn-in air can be sprayed.
[0012] Furthermore, the other end of the water outlet pipe passes through the inner top wall of the dust removal box and extends to the inner cavity of the dust removal box and is communicated with the inner cavity of the hollow plate.
[0013] By adopting this technical solution, the water entering the water outlet pipe can be guided into the inner cavity of the hollow plate.
[0014] Furthermore, the number of the nozzles is not less than two, and the number of the nozzles is not less than two and is evenly distributed on the lower surface of the hollow plate.
[0015] By adopting this technical solution, the multiple nozzles provided increase the spraying range.
[0016] Furthermore, the limiting component includes a fixed box, a bidirectional screw, two screw sleeves, two movable plates and two limiting blocks. The fixed box is fixed to the inner wall of the dust removal box, the bidirectional screw is rotatably connected between the top wall and the opposite side of the inner bottom wall of the fixed box through a bearing, the screw sleeve and the bidirectional screw are threadedly connected, the movable plate is fixed to the opposite side of the screw sleeves at the left and right ends, the side of the movable plate away from the screw sleeve passes through the fixed box and extends to the inner cavity of the dust removal box, and the two limiting blocks are fixed to the opposite side of the movable plates at the upper and lower ends.
[0017] By adopting this technical solution, the filter can be easily replaced.
[0018] Furthermore, the upper surface of the bidirectional screw penetrates the fixed box and extends to the upper side of the fixed box, and sliders are fixed on the opposite sides of the left and right ends of the screw sleeves, and sliding bars are fixed on the inner walls of the opposite sides of the fixed boxes on the left and right ends, and the sliders make linear movements up and down in the inner cavity of the sliding bars, and the two screw sleeves are symmetrically distributed on the upper and lower sides of the transverse center axis of the bidirectional screw.
[0019] By adopting this technical solution, the purpose of limiting the position of the screw sleeve is achieved by setting the sliding bar and the sliding block.
[0020] Furthermore, a card slot is opened at both left and right ends of the upper and lower surfaces of the filter, the inner diameter of the card slot is adapted to the outer diameter of the limit block, the blower is located on the lower side of the filter, and an air outlet is opened at the bottom of the right side wall of the inner cavity of the dust removal box.
[0021] By adopting this technical solution, the filter can be fixed by entering the card slot through the set limit block.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] The dust removal device for scrap steel recycling and descaling can generate dust in the process of scrap steel recycling and descaling, and the dust can be sucked into the dust removal bag through the induced draft fan, thereby improving the capture efficiency of smoke and dust. The water spray component can be used to spray the drawn air, and the air is filtered before being released from the dust removal box. The pollutants generated by the scrap steel recycling and descaling can be filtered, so that the pollutant emission can meet the environmental protection requirements and prevent a large amount of dust from being emitted into the air to pollute the air. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the structure of the utility model;
[0025] Figure 2 This is a partial structural diagram of the dust removal mechanism of the utility model;
[0026] Figure 3 This is a schematic diagram of the structure of the limiter of the utility model;
[0027] Figure 4 It is a schematic diagram of the internal structure of the dust removal box of the utility model.
[0028] In the figure: 1. dust inlet box; 2. induced draft fan; 3. dust bag; 4. dust inlet hole; 5. ash hopper; 6. dust removal mechanism; 61. dust removal box; 62. blower; 63. air duct; 64. water spray assembly; 641. water pump; 642. water outlet pipe; 643. hollow plate; 644. nozzle; 65. limiter; 651. fixed box; 652. bidirectional screw; 653. screw sleeve; 654. movable plate; 655. limiter block; 66. filter. DETAILED DESCRIPTION
[0029] 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.
[0030] See also Figure 1 A dust removal device for scrap steel recycling and descaling in this embodiment includes a dust inlet box 1, an induced draft fan 2 is fixed to the upper surface of the dust inlet box 1, a dust bag 3 is provided in the inner cavity of the dust inlet box 1, a dust inlet hole 4 is opened at the bottom of the left side of the dust inlet box 1, a ash hopper 5 is fixed to the lower surface of the dust bag 3, and a dust removal mechanism 6 for improving the dust removal effect is provided on the right side of the dust inlet box 1.
[0031] It is understandable that a lot of dust will be generated during the scrap steel recycling and descaling process. By starting the induced draft fan 2, the induced draft fan 2 can draw the generated dust into the dust bag 3 through the dust inlet hole 4. The staff can process the dust on the surface of the dust bag 3 by opening the dust inlet box 1. The bag dust collector can improve the capture efficiency of smoke and dust.
[0032] See also Figure 2-4 In order to avoid air pollution, the dust removal mechanism 6 in this embodiment includes a dust removal box 61, a blower 62, an air duct 63, a water spray assembly 64, a filter 66 and two limit members 65. The dust removal box 61 is arranged on the right side of the dust inlet box 1, the blower 62 is fixed on the right side of the dust removal box 61, one end of the air duct 63 passes through the right side wall of the inner cavity of the dust inlet box 1 and is connected to the inner cavity of the dust inlet box 1, the water spray assembly 64 is arranged on the upper surface of the dust removal box 61 and is used to remove dust from the drawn air, the filter 66 is arranged on the top of the inner cavity of the dust removal box 61, and the two limit members 65 are respectively arranged at the bottom of the opposite side of the left and right side walls of the inner cavity of the dust removal box 61.
[0033] In this embodiment, the air inlet end of the blower 62 is connected to the inner cavity of the dust bag 3, and the other end of the air duct 63 is fixed to the left side of the dust box 61 and connected to the inner cavity of the dust box 61. When the blower 62 is started, the blower 62 draws the gas after the initial dust removal in the dust bag 3 into the inner cavity of the dust box 61 through the air duct 63.
[0034] Among them, the water spray assembly 64 includes a water pump 641, a water outlet pipe 642, a hollow plate 643 and a nozzle 644. The water pump 641 is fixed at the right end of the upper surface of the dust removal box 61, one end of the water outlet pipe 642 is connected to the water outlet end of the water pump 641, the water inlet end of the water pump 641 is connected to the water source, the water pump 641 is started, and the water inlet end of the water pump 641 pumps water into the inner cavity of the water outlet pipe 642. The hollow plate 643 is fixed on the inner top wall of the dust removal box 61, and the nozzle 644 is connected to the lower surface of the hollow plate 643.
[0035] In this embodiment, the other end of the water outlet pipe 642 passes through the inner top wall of the dust removal box 61 and extends to the inner cavity of the dust removal box 61 and is connected with the inner cavity of the hollow plate 643. The water drawn into the inner cavity of the water outlet pipe 642 can flow into the inner cavity of the hollow plate 643, and finally be sprayed out through multiple nozzles 644 to spray the air. The air after spraying can be filtered again through the filter 66. The number of nozzles 644 is not less than two, and the number of nozzles 644 is not less than two, and is evenly distributed on the lower surface of the hollow plate 643.
[0036] Among them, the limiting component 65 includes a fixed box 651, a bidirectional screw 652, two screw sleeves 653, two movable plates 654 and two limiting blocks 655. The fixed box 651 is fixed to the inner wall of the dust removal box 61. The bidirectional screw 652 is rotatably connected between the inner top wall and the inner bottom wall of the fixed box 651 through a bearing. The screw sleeve 653 and the bidirectional screw 652 are threadedly connected. The bidirectional screw 652 is rotated, and the rotation of the bidirectional screw 652 causes the two screw sleeves 653 to move in opposite directions. The movable plate 654 is fixed to the opposite side of the screw sleeves 653 at the left and right ends. The side of the movable plate 654 away from the screw sleeves 653 penetrates the fixed box 651 and extends to the inner cavity of the dust removal box 61. The two limiting blocks 655 are fixed to the opposite side of the movable plates 654 at the upper and lower ends. The movement of the screw sleeves 653 drives the movable plate 654 and the limiting blocks 655 to move.
[0037] In this embodiment, the upper surface of the bidirectional screw 652 passes through the fixed box 651 and extends to the upper side of the fixed box 651, and sliders are fixed on the opposite sides of the left and right end screw sleeves 653, and sliding bars are fixed on the inner walls of the opposite sides of the left and right end fixed boxes 651. The slider makes linear up and down motion in the inner cavity of the sliding bar, and the two screw sleeves 653 are symmetrically distributed on the upper and lower sides of the horizontal center axis of the bidirectional screw 652.
[0038] In addition, slots are provided at both ends of the upper and lower surfaces of the filter 66, the inner diameter of the slots is matched with the outer diameter of the limit block 655, the blower 62 is located at the lower side of the filter 66, and an air outlet is provided at the bottom of the right side wall of the inner cavity of the dust removal box 61.
[0039] It can be understood that the opposite movement of the two movable plates 654 causes the limit block 655 to move out of the inner cavity of the card slot. After the separation gap between the two movable plates 654 increases, the filter 66 can be taken out and then replaced with a replacement filter 66, thereby replacing the filter 66 and improving the air filtering effect. The mutual cooperation of the filter 66 and the water spray assembly 64 can make the dust removal more thorough.
[0040] It should be noted that a slope block which is higher on the left and lower on the right is fixed to the inner bottom wall of the dust removal box 61 to facilitate the spraying water to flow out of the inner cavity of the dust removal box 61 .
[0041] The working principle of the above embodiment is:
[0042] (1) In the process of scrap steel recycling and descaling, a lot of dust will be generated. First, the induced draft fan 2 is started. The induced draft fan 2 can draw the generated dust into the dust bag 3 through the dust inlet hole 4. The staff can open the dust inlet box 1 to process the dust on the surface of the dust bag 3. The bag dust removal can improve the capture efficiency of smoke and dust. Then the blower 62 is started. The blower 62 draws the gas after the initial dust removal in the dust bag 3 into the inner cavity of the dust box 61 through the air duct 63. Then the water inlet end of the water pump 641 is connected to the water source and the water pump 641 is started. The water inlet end of the water pump 641 draws water into the inner cavity of the water outlet pipe 642. The water drawn into the inner cavity of the water outlet pipe 642 can flow into the inner cavity of the hollow plate 643 and finally sprayed out through multiple nozzles 644 to spray the air. The sprayed air can be filtered again through the filter 66, and the filtered air can be dispersed through the air outlet.
[0043] (2) In order to replace the filter screen 66, the bidirectional screw rod 652 is rotated. The rotation of the bidirectional screw rod 652 causes the two screw sleeves 653 to move in opposite directions. At this time, the slider fixed on the left side of the screw sleeve 653 moves in the inner cavity of the slide bar, which can limit the movement of the screw sleeve 653 so that it can only move in a straight line. The movement of the screw sleeve 653 drives the moving plate 654 and the limit block 655 to move. The two moving plates 654 move in opposite directions, so that the limit block 655 moves out of the inner cavity of the slot. After the separation gap between the two moving plates 654 increases, the filter screen 66 can be taken out and then the replacement filter screen 66 can be put in.
Claims
1. A dust removal device for scrap steel recycling and descaling, comprising a dust inlet box (1), characterized in that: An induced draft fan (2) is fixed on the upper surface of the dust inlet box (1), a dust removal bag (3) is provided in the inner cavity of the dust inlet box (1), a dust inlet hole (4) is provided at the bottom of the left side of the dust inlet box (1), a ash hopper (5) is fixed on the lower surface of the dust removal bag (3), and a dust removal mechanism (6) for improving the dust removal effect is provided on the right side of the dust inlet box (1); The dust removal mechanism (6) comprises a dust removal box (61), a blower (62), an air guide pipe (63), a water spray assembly (64), a filter screen (66) and two stoppers (65); the dust removal box (61) is arranged on the right side of the dust inlet box (1); the blower (62) is fixed on the right side of the dust removal box (61); one end of the air guide pipe (63) passes through the right side wall of the inner cavity of the dust inlet box (1) and is connected to the inner cavity of the dust inlet box (1); the water spray assembly (64) is arranged on the upper surface of the dust removal box (61) and is used to remove dust from the drawn air; the filter screen (66) is arranged on the top of the inner cavity of the dust removal box (61); and the two stoppers (65) are respectively arranged at the bottom of the left and right side walls of the inner cavity of the dust removal box (61) on opposite sides.
2. A dust removal device for scrap steel recycling and descaling according to claim 1, characterized in that: The air inlet end of the blower (62) is in communication with the inner cavity of the dust removal bag (3), and the other end of the air guide pipe (63) is fixed to the left side of the dust removal box (61) and is in communication with the inner cavity of the dust removal box (61).
3. The dust removal device for scrap steel recycling and descaling according to claim 1, characterized in that: The water spray assembly (64) comprises a water pump (641), a water outlet pipe (642), a hollow plate (643) and a spray head (644); the water pump (641) is fixed to the right end of the upper surface of the dust removal box (61); one end of the water outlet pipe (642) is connected to the water outlet end of the water pump (641); the hollow plate (643) is fixed to the inner top wall of the dust removal box (61); and the spray head (644) is connected to the lower surface of the hollow plate (643).
4. A dust removal device for scrap steel recycling and descaling according to claim 3, characterized in that: The other end of the water outlet pipe (642) penetrates the inner top wall of the dust removal box (61) and extends to the inner cavity of the dust removal box (61) and is communicated with the inner cavity of the hollow plate (643).
5. The dust removal device for scrap steel recycling and descaling according to claim 3, characterized in that: The number of the nozzles (644) is not less than two, and the number of the nozzles (644) is not less than two and is evenly distributed on the lower surface of the hollow plate (643).
6. The dust removal device for scrap steel recycling and descaling according to claim 1, characterized in that: The limiting member (65) comprises a fixed box (651), a bidirectional screw (652), two screw sleeves (653), two movable plates (654) and two limiting blocks (655); the fixed box (651) is fixed to the inner wall of the dust removal box (61); the bidirectional screw (652) is rotatably connected between the inner top wall and the inner bottom wall of the fixed box (651) on the opposite side via a bearing; the screw sleeve (653) and the bidirectional screw (652) are threadedly connected; the movable plates (654) are fixed to the opposite sides of the screw sleeves (653) at the left and right ends; the side of the movable plates (654) away from the screw sleeves (653) passes through the fixed box (651) and extends to the inner cavity of the dust removal box (61); and the two limiting blocks (655) are fixed to the opposite sides of the movable plates (654) at the upper and lower ends.
7. A dust removal device for scrap steel recycling and descaling according to claim 6, characterized in that: The upper surface of the bidirectional screw (652) passes through the fixed box (651) and extends to the upper side of the fixed box (651). Slide blocks are fixed on the opposite sides of the left and right ends of the screw sleeves (653). Slide bars are fixed on the inner walls of the opposite sides of the left and right ends of the fixed box (651). The slide blocks perform linear up and down motion in the inner cavity of the slide bars. The two screw sleeves (653) are symmetrically distributed on the upper and lower sides of the transverse center axis of the bidirectional screw (652).
8. The dust removal device for scrap steel recycling and descaling according to claim 6, characterized in that: The filter screen (66) has slots at both left and right ends on the upper and lower surfaces, the inner diameter of the slots being compatible with the outer diameter of the limit block (655), the blower (62) being located at the lower side of the filter screen (66), and an air outlet at the bottom of the right side wall of the inner cavity of the dust removal box (61).