Dust removal device of vibrating screen under groove

Abstract

The utility model relates to a dust removal device of an under-tank vibrating screen, and belongs to the technical field of under-tank vibrating screens. Comprising a dedusting box and two spraying devices, and the two spraying devices are oppositely fixed to the two sides of the outer wall of the dedusting box and connected with a water tank through water pipes. And through the arrangement of the dust removal box and the spraying device, materials make contact with water mist to form wet materials, and the wet materials enter the vibrating screen below the groove through the discharging opening to be screened. The water mist can effectively absorb dust generated by feeding, and the dust is discharged into the waste water bin through the water discharging hole and can be recycled after being treated. Compared with a traditional fan dust removal mode, the mode is low in energy consumption, and dust removal treatment is carried out on the materials before the materials enter the under-groove vibrating screen. And through the arrangement of the guide plate, the materials can be in more sufficient contact with water mist in the dust removal box, so that the dust removal effect is improved. And through the arrangement of the discharging plate, redundant water particles attached to the outer side of the materials can be shaken off on the discharging plate and are discharged along the water discharging hole.

Description

Technical Field

[0001] The utility model relates to the technical field of under-trough vibrating screens, in particular to a dust removal device for under-trough vibrating screens. Background Art

[0002] The under-trough vibrating screen is a device used for screening and separating materials. Its working principle is to use the vibration force generated by the vibrator to make the screen surface vibrate periodically. This vibration can effectively separate the materials and improve the transferability and separation of materials on the screen surface. Among them, the under-trough vibrating screen is used in the blast furnace ironmaking process to screen and separate the raw materials to remove larger block materials and overly coarse or overly fine particles.

[0003] During the process of the under-trough vibrating screen screening the raw materials, a large amount of dust and particulate matter will be generated due to the vibration and screening action. If these dust and particulate matter accumulate and spread around the blast furnace for a long time, they will cause harm to the production environment and the health of the workers. In order to control the generation of dust and particulate matter, the existing under-trough vibrating screen usually uses a fan to remove dust. Specifically, the fan generates negative pressure and sucks the generated dust into the dust removal equipment. The filter material or filter bag in the dust removal equipment can capture and filter the dust particles, and the clean air is released back into the environment through the discharge port.

[0004] However, this dust removal method using a fan has some problems, one of which is that the energy consumption is too high. Since the vibrating screen under the trough continues to vibrate and generate dust during the screening process, the fan needs to operate continuously to absorb the dust. The operation of the fan consumes a lot of energy, resulting in increased energy consumption. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a dust removal device for an under-trough vibrating screen. The technical solution of the utility model is as follows:

[0006] A dust removal device for an under-trough vibrating screen comprises a dust removal box and two groups of spray devices, wherein the upper end opening of the dust removal box is fixedly connected to a feed port, and slide grooves are provided on both side walls of the interior of the dust removal box and below the feed port, and a mounting groove is provided through one side of the slide groove, and two groups of spray devices are fixed oppositely to the two sides of the outer wall of the dust removal box, and the spray device is connected to the water tank through a water pipe, and a nozzle is fixedly connected to the upper surface of the spray device through a connecting pipe, and the nozzle is fixedly connected to the inside of the mounting groove through a fixing seat, and two groups of guide plates are connected to the inside of the dust removal box and below the nozzle, and the two groups of guide plates are distributed oppositely and staggered up and down, and the guide plates are arranged on the inner side of the dust removal box. The flow plate includes a back plate, which is fixedly connected to the inner wall of the dust removal box, one side of the back plate is fixedly connected to a support frame, and the support frame is inclined, the back plate and the support frame are fixed by a support frame, the upper surface of the support frame is detachably connected to a receiving plate, a discharge port is provided on one side of the dust removal box and below the guide plate, a discharge plate is obliquely connected to the inside of the dust removal box and on one side of the discharge port, a water discharge hole is provided on the surface of the discharge plate, a waste water bin is connected to the inside of the dust removal box and below the discharge plate, a water discharge pipe is penetrated and connected to the lower surface of the waste water bin, and one side of the discharge port is connected to the vibrating screen under the trough through a connecting groove.

[0007] Optionally, a fixing hole is formed through the surface of the fixing seat, and the nozzle is inserted into the fixing hole.

[0008] Optionally, a protective plate is movably connected inside the slide groove, and the protective plate is located on one side of the nozzle, guide blocks are fixedly connected to both ends of one side of the protective plate, a connecting plate is fixedly connected to the upper surface of the guide block, and the two connecting plates are respectively located on both sides of the fixed seat, support seats are fixedly connected to both sides of the outer wall of the dust removal box and on both sides of the spray device, a hydraulic rod is fixedly connected to the lower surface of the support seat, and the lower surface of the connecting plate is connected to the telescopic end of the hydraulic rod.

[0009] Optionally, guide grooves are provided on both sides of the bottom surface of the installation groove, and the guide block is slidably connected inside the guide grooves.

[0010] Optionally, the angle between the back plate and the support frame is between 30 degrees and 45 degrees.

[0011] Optionally, a through hole is formed through the surface of the receiving plate.

[0012] Optionally, the inclination angle of the blanking plate is greater than 30 degrees.

[0013] All the above optional technical solutions can be combined arbitrarily, and the present utility model does not provide detailed descriptions of the structures after the combinations.

[0014] By means of the above scheme, the beneficial effects of the utility model are as follows:

[0015] 1. Through the setting of dust removal box and spray device, a set of dust removal box is installed above the feeding port of the under-trough vibrating screen, and two sets of spray devices are installed opposite to each other below the feeding port of the dust removal box. The spray device sprays water mist into the dust removal box through the nozzle. When the material enters the dust removal box from the feeding port, the material contacts the water mist to form wet material, and enters the under-trough vibrating screen through the discharge port for screening. The water mist can effectively absorb the dust generated by the feeding, and discharge it into the wastewater bin through the drain hole, which can be treated and reused. Compared with traditional fan dust removal, this method has low energy consumption, and the material is dust-removed before entering the under-trough vibrating screen, so that the under-trough vibrating screen will not generate much dust when screening the material.

[0016] 2. Through the setting of the guide plate, when the material falls in the dust removal box, it will be blocked by the receiving plate, thereby slowing down the falling speed of the material. The purpose of this is to enable the material to have a more complete contact with the water mist inside the dust removal box, thereby improving the dust removal effect.

[0017] 3. Through the setting of the discharge plate, when the material falls from the receiving plate to the discharge plate, the material will collide with the discharge plate. This process can shake off the excess water particles attached to the outside of the material onto the discharge plate and discharge them along the drain hole. This design helps prevent excessive water particles from entering the vibrating screen under the trough with the material, thereby effectively reducing the problem of blockage of the sieve holes of the vibrating screen under the trough.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall appearance structure of the dust removal device of the under-trough vibrating screen provided by the utility model;

[0020] Figure 2 It is an exploded sectional view of some parts in the utility model;

[0021] Figure 3 This is a front cross-sectional view of the dust removal box in the utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 It is a structural schematic diagram of the protective plate in the utility model;

[0024] Figure 6 It is a schematic diagram of the exploded structure of the guide plate in the utility model.

[0025] Numbers in the figure: 1. Dust removal box; 11. Feed inlet; 12. Slide; 13. Mounting groove; 131. Guide groove; 14. Discharge port; 2. Spray device; 21. Nozzle; 22. Fixed seat; 221. Fixed hole; 3. Protective plate; 31. Guide block; 32. Connecting plate; 33. Support seat; 34. Hydraulic rod; 4. Guide plate; 41. Back plate; 42. Support frame; 43. Support frame; 44. Receiver plate; 441. Through hole; 5. Feeding plate; 51. Drain hole; 6. Wastewater bin; 61. Drain pipe; 7. Connecting groove. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] See also Figure 1-6 As shown, the utility model provides a dust removal device for an under-trough vibrating screen, comprising a dust removal box 1 and two groups of spray devices 2, the upper end opening of the dust removal box 1 is fixedly connected with a feed port 11, the inner side walls of the dust removal box 1 and below the feed port 11 are provided with slide slots 12, one side of the slide slot 12 is penetrated with a mounting slot 13, the two groups of spray devices 2 are fixed oppositely on the outer side walls of the dust removal box 1, the spray devices 2 are connected to the water tank through a water pipe, the upper surface of the spray devices 2 is fixedly connected with a nozzle 21 through a connecting pipe, and the nozzle 21 is fixedly connected to the inside of the mounting slot 13 through a fixing seat 22, the inside of the dust removal box 1 and below the nozzle 21 are connected with two groups of guide plates 4, and the two groups of guide plates 4 are distributed oppositely and staggered up and down, the guide plates 4 include a back plate 41, the back plate 4 1 is fixedly connected to the inner wall of the dust removal box 1, one side of the back plate 41 is fixedly connected to a support frame 42, and the support frame 42 is inclined. The back plate 41 and the support frame 42 are fixed by a support frame 43, and the upper surface of the support frame 42 is detachably connected with a receiving plate 44. A discharge port 14 is provided on one side of the dust removal box 1 and below the guide plate 4. A discharge plate 5 is obliquely connected to the inside of the dust removal box 1 and on one side of the discharge port 14. A discharge hole 51 is provided on the surface of the discharge plate 5. A waste water bin 6 is connected to the inside of the dust removal box 1 and below the discharge plate 5. A discharge pipe 61 is penetrated and connected to the lower surface of the waste water bin 6. The discharge pipe 61 can be externally connected to a filtering device to filter the dust water for recycling. One side of the discharge port 14 is connected to the vibrating screen under the tank through a connecting tank 7.

[0028] The utility model arranges two sets of spray devices 2 opposite to each other at the opening of the dust removal box 1. The spray devices 2 spray water mist into the dust removal box 1 through the nozzle 21. When the material enters the dust removal box 1, the water mist can effectively absorb the dust generated by the material. The absorbed dust will flow into the waste water bin 6 through the water discharge hole 51 together with the water. The material flows out from the discharge port 14 through the receiving plate 44 and the discharge plate 5, and finally enters the interior of the vibrating screen under the slot through the connecting slot 7.

[0029] When the material falls into the dust removal box 1, it will first pass through the water mist area and then be blocked by the receiving plate 44. The receiving plate 44 will slow down the material's descent speed so that the material can fully contact the water mist inside the dust removal box 1. Then, the material will slide from the receiving plate 44 to the upper surface of the lower plate 5. Due to the height difference between the receiving plate 44 and the lower plate 5, the material will collide when it falls to the upper surface of the lower plate 5. This collision will cause the excess water particles attached to the outside of the material to be shaken off on the lower plate 5 and discharged along the drain hole 51. This design helps prevent excessive water particles from entering the vibrating screen under the trough with the material, thereby effectively reducing the problem of blockage of the sieve holes of the vibrating screen under the trough.

[0030] It should be noted that the receiving plate 44 and the blanking plate 5 need to be made of wear-resistant materials because they are in hard contact with the materials for a long time.

[0031] Furthermore, a fixing hole 221 is formed through the surface of the fixing seat 22, and the nozzle 21 is inserted into the fixing hole 221; the nozzle 21 is installed in the fixing hole 221 in a detachable manner, and this installation method makes subsequent maintenance and replacement more convenient and efficient.

[0032] Further, the interior of the chute 12 is movably connected with a protective plate 3, and the protective plate 3 is located on one side of the nozzle 21. Both ends of one side of the protective plate 3 are fixedly connected with a guide block 31, and the upper surface of the guide block 31 is fixedly connected with a connecting plate 32, and the two connecting plates 32 are respectively located on both sides of the fixed seat 22. Support seats 33 are fixedly connected to both sides of the outer wall of the dust removal box 1 and on both sides of the spray device 2. The lower surface of the support seat 33 is fixedly connected with a hydraulic rod 34, and the lower surface of the connecting plate 32 is connected to the telescopic end of the hydraulic rod 34. When the under-trough vibrating screen is in a non-working state, the protective plate 3 will block the side of the nozzle 21 close to the inside of the dust removal box 1, thereby protecting the nozzle 21. When the under-trough vibrating screen is working, the hydraulic rod 34 drives the telescopic end to retract, and drives the protective plate 3 to move downward through the connecting plate 32 and the guide block 31, thereby opening the side of the nozzle 21 close to the inside of the dust removal box 1.

[0033] Furthermore, guide grooves 131 are provided on both sides of the bottom surface of the installation groove 13, and the guide block 31 is slidably connected inside the guide groove 131; when the protective plate 3 is opened or closed, the guide block 31 is driven to slide inside the guide groove 131. The guide groove 131 plays a role of limiting and guiding the guide block 31, ensuring that the movement trajectory of the protective plate 3 is controlled so that it can be accurately opened or closed.

[0034] Furthermore, the angle between the back plate 41 and the support frame 42 is between 30 degrees and 45 degrees; when the material falls on the upper surface of the receiving plate 44 connected to the support frame 42, the speed of the material will be slowed down due to the influence of the inclination angle. The angle range of 30 degrees to 45 degrees can effectively slow down the descending speed of the material, and also avoid the possibility of the material being accumulated on the receiving plate 44.

[0035] Furthermore, a through hole 441 is formed through the surface of the receiving plate 44. Through the setting of the through hole 441, when the material falls onto the receiving plate 44, the excess moisture particles on the material can flow away through the through hole 441, thus effectively avoiding the problem of moisture particles accumulating on the surface of the receiving plate 44.

[0036] Furthermore, the inclination angle of the discharge plate 5 is greater than 30 degrees; an inclination angle greater than 30 degrees can slow down the descending speed of the material again, so that when the material contacts the discharge plate 5, the moisture particles attached to the outside of the material have enough time to flow away through the drainage hole 51, and at the same time, accumulation will not occur.

[0037] Working principle: Start the vibrating screen under the trough and drive the telescopic end of the hydraulic rod 34 to retract, thereby opening the protective plate 3 blocking the side of the nozzle 21. Then start the spray device 2, which sprays the water in the water tank through the nozzle 21, so that the dust removal box 1 is filled with water mist. At this time, the material enters the dust removal box 1 through the feed port 11, mixes with the water mist, forms wet material, falls on the receiving plate 44, and slides down along the inclined surface of the receiving plate 44. During the sliding process, the material is received by the receiving plate 44, which slows down the sliding speed of the material, and increases the contact time between the material and the water mist. Next, the material will slide onto the discharge plate 5. There is a height difference between the receiving plate 44 and the discharge plate 5. When the wet material falls from the receiving plate 44 to the discharge plate 5, the discharge plate 5 contacts the wet material. The downward impact can shake off the excess moisture particles attached to the outside of the wet material. The shaken-off moisture particles will flow into the wastewater bin 6 through the drain hole 51, and the material will slide into the vibrating screen below the trough through the discharge port 14 and the connecting trough 7.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A dust removal device for an under-trough vibrating screen, characterized in that: The invention comprises a dust removal box (1) and two groups of spray devices (2), wherein the upper end opening of the dust removal box (1) is fixedly connected with a feed port (11), and slide grooves (12) are provided on the inner side walls of the dust removal box (1) and below the feed port (11), and a mounting groove (13) is provided through one side of the slide groove (12), and the two groups of spray devices (2) are fixed on the outer side walls of the dust removal box (1) opposite to each other, and the spray devices (2) are connected to the water tank through a water pipe, and the upper surface of the spray devices (2) is fixedly connected with a nozzle (21) through a connecting pipe, and the nozzle (21) is fixedly connected to the inside of the mounting groove (13) through a fixing seat (22), and two groups of guide plates (4) are connected to the inside of the dust removal box (1) and below the nozzle (21), and the two groups of guide plates (4) are distributed opposite to each other and staggered up and down, and the guide plates (4) include a back plate (41), and the back plate The back plate (41) is fixedly connected to the inner wall of the dust removal box (1); one side of the back plate (41) is fixedly connected to a support frame (42), and the support frame (42) is inclined; the back plate (41) and the support frame (42) are fixedly connected by a support frame (43); the upper surface of the support frame (42) is detachably connected to a receiving plate (44); a discharge port (14) is provided on one side of the dust removal box (1) and below the guide plate (4); a discharge plate (5) is obliquely connected to the inside of the dust removal box (1) and on one side of the discharge port (14); a discharge hole (51) is provided on the surface of the discharge plate (5); a waste water bin (6) is connected to the inside of the dust removal box (1) and below the discharge plate (5); a discharge pipe (61) is penetrated and connected to the lower surface of the waste water bin (6); one side of the discharge port (14) is connected to the vibrating screen below the bin through a connecting groove (7).

2. The dust removal device for an under-trough vibrating screen according to claim 1, characterized in that: A fixing hole (221) is formed through the surface of the fixing seat (22), and the nozzle (21) is inserted into the fixing hole (221).

3. A dust removal device for an under-trough vibrating screen according to claim 1 or 2, characterized in that: The slide groove (12) is internally movably connected with a protective plate (3), and the protective plate (3) is located on one side of the nozzle (21). Both ends of one side of the protective plate (3) are fixedly connected with guide blocks (31), and the upper surface of the guide block (31) is fixedly connected with a connecting plate (32), and the two connecting plates (32) are respectively located on both sides of the fixed seat (22). Support seats (33) are fixedly connected on both sides of the outer wall of the dust removal box (1) and on both sides of the spray device (2). The lower surface of the support seat (33) is fixedly connected with a hydraulic rod (34), and the lower surface of the connecting plate (32) is connected to the telescopic end of the hydraulic rod (34).

4. The dust removal device for an under-trough vibrating screen according to claim 3, characterized in that: Guide grooves (131) are provided on both sides of the bottom surface of the installation groove (13), and the guide block (31) is slidably connected inside the guide groove (131).

5. The dust removal device for an under-trough vibrating screen according to claim 1, characterized in that: The angle between the back plate (41) and the support frame (42) is between 30 degrees and 45 degrees.

6. The dust removal device for an under-trough vibrating screen according to claim 1, characterized in that: A through hole (441) is formed through the surface of the receiving plate (44).

7. The dust removal device for an under-trough vibrating screen according to claim 1, characterized in that: The inclination angle of the blanking plate (5) is greater than 30 degrees.

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