Fine iron powder grinding and screening device
By installing a dust cover and a dust collection system in the iron concentrate grinding and screening device, the problem of dust overflow during the vibrating screening process was solved, achieving efficient dust collection and separation and improving the working environment.
Patent Information
- Application Number
- CN202422992760.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-04
AI Technical Summary
During the vibrating screening process, iron concentrate dust is prone to overflow, resulting in excessively high dust concentration in the working environment and affecting the working environment.
A grinding and screening device for iron concentrate, comprising a dust cover, a dust collection pipe, a filter collection assembly, and a blower, was designed. By setting dust covers at the inlet and outlet, the dust is drawn into the filter collection assembly using the dust collection pipe and blower, and the dust particles are separated and collected through multi-stage filters.
It effectively reduces dust spillage and dispersion, improves the working environment, and achieves efficient dust collection and separation.
Smart Images
Figure CN223628748U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of screening, specifically, relates to a iron concentrate powder grinding and screening device. BACKGROUND
[0002] Iron concentrate powder is a kind of ore powder formed by iron ore after crushing, grinding, beneficiation and other processing, the iron ore is first preliminarily crushed, then the crushed ore is ground in a ball mill, and then screening is carried out. In normal screening operation, a vibrating screen is usually used to screen the iron concentrate powder, the crushed ore is placed on the screen, and the crushed ore is screened to different particle sizes in the filter screen by the vibration force generated by the vibration motor.
[0003] The vibration motor generates vibration forces in two directions, i.e. horizontal and vertical directions, the iron concentrate powder is screened on the screen with different thicknesses, the iron concentrate powder with larger particle size is retained in the uppermost layer, and the iron concentrate powder with the smallest particle size is screened to the bottom layer from top to bottom. Since the screened iron concentrate powder has different particle sizes, they are transported out from different outlets, and the iron concentrate powder with the smallest particle size directly falls to the bottom of the entire device in the screen box of the bottom layer, and the screening of the iron concentrate powder is completed. However, during the vibrating screening process, the top of the top layer of the screen is open, and the powder particles overflow from the opening and float in the air during the vibration and screening of the device, which causes the dust concentration in the air to be too high, affects the working environment, and has certain defects. SUMMARY
[0004] The utility model provides a kind of iron concentrate powder grinding and screening device, solve the problem of dust dispersion in prior art vibrating screening.
[0005] The technical scheme of the utility model is as follows: a kind of iron concentrate powder grinding and screening device, including grinding and screening machine body, the grinding and screening machine body includes machine top cover, further including:
[0006] Dust cover, the dust cover is hinged at the inlet and outlet of the grinding and screening machine body, to close the inlet and outlet of the grinding and screening machine body when dust collection;
[0007] Suction duct, one side of the suction duct is communicated with the top of the machine top cover;
[0008] Filtering and collecting assembly, the filtering and collecting assembly is communicated with the other side of the suction duct;
[0009] Air outlet pipe after filtering dust, one end of the air outlet pipe after filtering dust is communicated with the filtering and collecting assembly;
[0010] Suction fan, the suction end of the suction fan is communicated with the other side of the filtering and collecting assembly.
[0011] Preferably, further comprising an adjusting assembly for adjusting the dust collection position of the dust collection pipe in the machine top cover, the adjusting assembly comprising:
[0012] A telescopic hose, which is communicated at one end of the dust collection pipe;
[0013] A fixed pipe sleeve, which is communicated at the other end of the telescopic hose;
[0014] A rotating ball, which is provided with a rotating through hole on the side wall of the machine top cover, and the rotating ball is rotatably installed in the rotating through hole;
[0015] An operating rod, which is fixedly connected with the fixed pipe sleeve at one end, and the rotating ball is provided with a sliding through hole, the other end of the operating rod passes through the sliding through hole and extends to the outside, and the operating rod is in sliding fit with the sliding through hole.
[0016] Preferably, further comprising a sliding limiting mechanism, the sliding limiting mechanism comprising:
[0017] A plurality of grooves, which are provided on the operating rod, and one end of the groove is communicated with the outside through the opening;
[0018] An arc-shaped clamping block, which is provided in each of the grooves, and the arc-shaped clamping block partially passes through the opening and extends to the outside, and the arc-shaped clamping block is elastically connected with the bottom of the groove;
[0019] A limiting hole, which is provided on the inner wall of the sliding through hole and matched with the arc-shaped clamping block.
[0020] Preferably, further comprising a rotating limiting mechanism, the rotating limiting mechanism comprising:
[0021] An L-shaped partition plate, which is rotatably connected with one end of the operating rod located at the outside;
[0022] A baffle, which is fixedly connected with the other end of the L-shaped partition plate;
[0023] A screw, which is threadedly connected with the baffle and passes through the baffle, and the side wall of the machine top cover is provided with a thread groove matched with the screw.
[0024] Further comprising a filtering and collecting mechanism, the filtering and collecting mechanism comprising:
[0025] A collecting box, which is provided with an air inlet and an air outlet on the outer wall, and the air inlet and the air outlet are respectively communicated with the other side of the dust collection pipe and one end of the dust collection pipe after filtering;
[0026] A collecting groove is arranged at the bottom of the collecting box, and the groove opening of the collecting groove is upward;
[0027] A fixing frame is fixedly connected to the inner wall of the collecting box;
[0028] A filter screen is detachably connected to the fixing frame;
[0029] Further, the filter screen has multiple filter screens with different mesh sizes, the filter screen with the smallest mesh size is closest to the air inlet, the filter screen with the largest mesh size is closest to the air outlet, and the multiple filter screens are sequentially connected to the fixing frame in order of the mesh size from small to large;
[0030] Preferably, one side wall of the machine top cover is provided as a transparent viewing window, the rotating through hole is arranged on the transparent viewing window, and the transparent viewing window is provided with a threaded groove matched with the bolt.
[0031] The working principle and beneficial effects of the present application are as follows:
[0032] In the present application, the iron ore and the slag enter the grinding and screening machine body from the feeding port, the grinding and screening machine body performs screening and filtering on the iron ore and the slag, in the screening process, the dust in the grinding and screening machine body will be dispersed, the dust cover is hinged at the feeding port and the discharging port of the grinding and screening machine body, the position of the dust suction port of the dust suction pipeline is controlled through the operating rod, the dust in the grinding and screening machine body is fully sucked, then the dust is sucked into the collecting box through the dust suction pipeline, the dust is first screened through the filter screen with the smallest mesh size to remove the larger dust particles, then the remaining dust is sequentially filtered through the filter screens, until the dust passes through the filter screen with the largest mesh size, finally, the filtered gas is sucked out from the dust-free air outlet pipe by the air suction machine and discharged to the outside, compared with the prior art, the discharging port and the feeding port of the grinding and screening machine body are in an open state, this processing method can make the dust in a closed state and facilitate dust suction and collection, and reduce the dispersion of the dust. BRIEF DESCRIPTION OF DRAWINGS
[0033] The present application will be further described in detail below in combination with the drawings and specific embodiments.
[0034] Figure 1 It is a structural schematic view of the grinding and screening machine body of the present application;
[0035] Figure 2 It is a structural schematic view of the partial section of the present application;
[0036] Figure 3 It is a structural schematic view of the partial section of the present application; Figure 2 It is an enlarged schematic view of the local structure at A in the present application.
[0037] Figure 4 This is a schematic diagram of the overall structure of this utility model;
[0038] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the local structure at point B;
[0039] Figure 6 This is a partially sectional, exploded structural diagram of the operation lever, the arc-shaped locking block, and the rotating ball in this utility model.
[0040] Figure 7 This utility model Figure 6 Enlarged schematic diagram of the local structure at point C;
[0041] Figure 8 This is a schematic diagram of the structure of the collection box, fixing frame and filter screen in this utility model.
[0042] In the diagram: 1. Grinding and screening machine body; 2. Top cover; 3. Dust cover; 6. Dust suction pipe; 8. Dust-filtered exhaust pipe; 9. Fan; 10. Transparent viewing window;
[0043] 101. Telescopic flexible hose; 102. Fixed sleeve; 103. Rotating ball; 104. Operating lever;
[0044] 201. Groove; 202. Arc-shaped locking block; 203. Limiting hole;
[0045] 301. L-shaped partition; 302. Baffle; 303. Bolt;
[0046] 401. Collection box; 402. Collection trough; 403. Fixture; 404. Filter screen. Detailed Implementation
[0047] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0048] like Figures 1-8 As shown, this embodiment proposes an iron concentrate grinding and screening device, which includes a grinding and screening machine body 1, a machine top cover 2, a dust cover 3, and a dust suction pipe 6.
[0049] The dust cover 3 is hinged at the feeding port and the discharging port of the grinding and screening machine body 1, and a blocking plate is slidably connected at the discharging port at the bottom of the grinding and screening machine body 1, so as to close the feeding port, the discharging port and the discharging port at the bottom of the grinding and screening machine body 1 during dust collection. Before the grinding and screening machine body 1 is fed, the dust cover 3 needs to be opened, and after the feeding, the dust cover 3 and the blocking plate are closed, and then the grinding and screening machine body 1 is started to work. After the grinding and screening is completed, the dust cover 3 at the discharging port and the blocking plate also need to be opened before discharging.
[0050] Considering that the working condition in the grinding and screening machine body 1 cannot be observed during the operation of the device, one side wall of the machine top cover 2 is provided with a transparent viewing window 10 for observing the position of the dust suction port.
[0051] One side of the dust suction pipe 6 is communicated with the top of the machine top cover 2, one end of the air outlet pipe 8 after dust filtration is communicated with the filtering and collecting assembly, and the suction end of the air suction fan 9 is communicated with the other side of the filtering and collecting assembly.
[0052] Considering that the dust suction port is located in the machine top cover 2 and the dust suction position is fixed, the space in the grinding and screening machine body 1 is large, the iron ore and gravel are fed into the grinding and screening machine body 1 from the feeding port, and the amount of each feeding is not fixed and the position of the iron ore fed into the grinding and screening machine body 1 is not fixed. During the vibration screening, the position of the dust dispersion is generally not concentrated below the dust suction port, and the dust in the remaining positions in the grinding and screening machine body 1 is generally not timely sucked, so the air suction fan 9 needs to work continuously to suck all the dust dispersed in the whole grinding and screening machine body 1, which wastes a lot of time. Therefore, the adjusting assembly for adjusting the dust suction position of the dust suction pipe 6 in the machine top cover 2 is further included. The adjusting assembly comprises a flexible hose 101, a fixed pipe sleeve 102, a rotating ball 103 and an operating rod 104. The flexible hose 101 is communicated at one end of the dust suction pipe 6, the other end of the flexible hose 101 is communicated with the fixed pipe sleeve 102, a rotating through hole is formed in the transparent viewing window 10, the rotating ball 103 is rotatably installed in the rotating through hole, one end of the operating rod 104 is fixedly connected with the fixed pipe sleeve 102, a sliding through hole is formed in the rotating ball 103, the other end of the operating rod 104 passes through the sliding through hole and extends to the outside, and the operating rod 104 is in sliding fit with the sliding through hole.
[0053] Since the dust suction position of the dust suction pipe 6 needs to be adjusted to perform multi-directional dust suction at the dust suction port in the machine top cover 2, the dust suction port needs to be controlled to move in multiple directions by using the operating rod 104. If the operating rod 104 is moved in the direction of the inside of the screening machine body 1 through the sliding through hole or in the direction of the outside of the screening machine body 1, when the dust suction port reaches the specified position, if the operating rod 104 cannot be fixed at this position, the suction force generated by the air blower 9 will cause the dust suction pipe 6 to move, thereby causing the operating rod 104 to move, resulting in the dust suction port being transformed again after reaching the specified position, affecting the dust suction effect. Therefore, the sliding limiting mechanism is also included, which includes a groove 201, an arc-shaped clamping block 202, and a limiting hole 203. The operating rod 104 is provided with a plurality of grooves 201, one end of the groove 201 is communicated with the outside through an opening, each groove 201 is provided with an arc-shaped clamping block 202, and the arc-shaped clamping block 202 partially penetrates the opening and extends to the outside, the arc-shaped clamping block 202 is elastically connected with the bottom of the groove 201, and the inner wall of the sliding through hole is provided with a limiting hole 203 matched with the arc-shaped clamping block 202;
[0054] Considering that the rotating ball 103 is rotatably installed in the rotating through hole, the rotating ball 103 will rotate, and at the same time that the rotating ball 103 rotates, the operating rod 104 is slidably connected with the rotating ball 103, the rotating ball 103 will drive the operating rod 104 to rotate together. The operating rod 104 outside the screening machine body 1 may cause damage to external objects, so the rotating limiting mechanism is also included, which includes an L-shaped partition plate 301, a baffle 302, and a bolt 303. One end of the L-shaped partition plate 301 is rotatably connected with the end of the operating rod 104 located outside the outside, the baffle 302 is fixedly connected with the other end of the L-shaped partition plate 301, the bolt 303 is threadedly connected with the baffle 302, and the bolt 303 penetrates the baffle 302. The transparent viewing window 10 is provided with a threaded groove matched with the bolt 303;
[0055] Considering that the dust needs to be collected and treated after being sucked out from the grinding and screening machine body 1, and because the dust particles sucked out from the grinding and screening machine body 1 are of different sizes, they can be filtered and screened again for separate collection and treatment. Because the filter screen 404 will be blocked during the process of filtering the dust, the filter screen 404 needs to be detachable and needs to be cleaned and replaced regularly. Therefore, a filtering and collecting assembly is needed, which is in communication with the other side of the dust suction pipeline 6. The filtering and collecting assembly comprises a collecting box 401, a collecting groove 402, a fixing frame 403 and a filter screen 404. The outer wall of the collecting box 401 is provided with an air inlet and an air outlet, which are respectively in communication with the other side of the dust suction pipeline 6 and one end of the dust outlet pipeline 8. The collecting groove 402 is located at the bottom of the collecting box 401, and the groove opening of the collecting groove 402 is upward. The fixing frame 403 is fixedly connected to the inner wall of the collecting box 401. The filter screen 404 is detachably connected to the fixing frame 403. The multiple filter screens 404 are of different mesh sizes. The filter screen 404 with the smallest mesh size is closest to the air inlet, and the filter screen 404 with the largest mesh size is closest to the air outlet. The multiple filter screens 404 are connected to the fixing frame 403 in order from small to large mesh size, which facilitates effective collection of dust, facilitates detachment and installation of the filter screen 404, and facilitates cleaning and replacement of the filter screen 404.
[0056] In summary, the working principle and working process of the iron concentrate grinding and screening device are as follows: in use, the iron concentrate grinding and screening device is placed at a suitable use site; when the grinding and screening machine body 1 is working, the dust covers 3 at the feeding port and discharging port of the grinding and screening machine body 1 and the discharging port at the bottom of the grinding and screening machine body 1 are closed, so that the dust is in a closed environment, too much air is prevented from entering the dust suction pipeline 6, and dust overflow from the grinding and screening machine body 1 is reduced; the baffle 302 is fixed on the transparent viewing window 10 by the bolts 303, so that the operating rod 104 is kept in a fixed state; the air suction fan 9 is started, so that the dust suction pipeline 6 does not drive the operating rod 104 when the air suction fan 9 is started, the operating rod 104 outside the grinding and screening machine body 1 is not out of control, and damage is avoided; at this time, suction is generated in the dust suction pipeline 6 and the dust filtering air outlet pipeline 8, the baffle 302 is disconnected from the transparent viewing window 10 by loosening the bolts 303 when the dust suction port needs to be moved by the operating rod 104, the operating rod 104 can be moved, the L-shaped partition plate 301 connected to the baffle 302 is rotated to a vertical state, then the dust suction port reaches the place where dust is diffused by sliding forward and backward on the sliding through hole on the rotating ball 103, so that the dust suction port fully sucks dust in the machine top cover 2, then the dust enters the collection box 401 from the air inlet through the dust suction pipeline 6, the dust is first screened by the filter screen 404 with the smallest mesh number to screen out larger dust particles, then the remaining dust is filtered and screened by the filter screens 404 in sequence, until the dust is filtered by the filter screen 404 with the largest mesh number, after the dust is filtered, dust with different particle sizes is respectively collected in the corresponding collection grooves 402, then the collection grooves 402 are taken out by the handle and the dust in the collection grooves 402 is treated, and the remaining gas is sucked into the dust filtering air outlet pipeline 8 from the air outlet and is finally discharged to the outside.
[0057] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An iron concentrate grinding and screening device, comprising a grinding and screening machine body (1), wherein the grinding and screening machine body (1) includes a top cover (2), characterized in that, Also includes: Dust cover (3): The dust cover (3) is hinged at both the feed inlet and the discharge outlet of the grinding and screening machine body (1) to seal the feed inlet and discharge outlet of the grinding and screening machine body (1) during dust collection. A vacuum duct (6) is provided, one side of which is connected to the top of the top cover (2); A filter collection assembly, which is connected to the other side of the suction pipe (6); Dust-filtered air outlet pipe (8), one end of which is connected to the filter collection assembly; A suction fan (9) is provided, the suction end of which is connected to the other side of the filter collection assembly.
2. The iron concentrate grinding and screening device according to claim 1, characterized in that, It also includes an adjustment assembly for adjusting the suction position of the suction duct (6) within the top cover (2), the adjustment assembly comprising: A telescopic hose (101) is connected to one end of the vacuum pipe (6); A fixed sleeve (102) is provided, and the other end of the telescopic hose (101) is connected to the fixed sleeve (102); A rotating ball (103) is provided on the top cover (2), and the rotating ball (103) is rotatably installed in the rotating through hole; An operating rod (104) is provided. One end of the operating rod (104) is fixedly connected to the fixed sleeve (102). A sliding through hole is provided on the rotating ball (103). The other end of the operating rod (104) passes through the sliding through hole and extends to the outside. The operating rod (104) is slidably engaged with the sliding through hole.
3. The iron concentrate grinding and sieving device according to claim 2, characterized in that, It also includes a sliding limit mechanism, which comprises: The operating lever (104) has multiple grooves (201), one end of which communicates with the outside through an opening; Arc-shaped locking block (202), each of the grooves (201) is provided with an arc-shaped locking block (202), and a part of the arc-shaped locking block (202) passes through the opening and extends to the outside. The arc-shaped locking block (202) is elastically connected to the bottom of the groove (201). The limiting hole (203) is provided on the inner wall of the sliding through hole, which matches the arc-shaped locking block (202).
4. The iron concentrate grinding and screening device according to claim 3, characterized in that, It also includes a rotation limiting mechanism, which comprises: L-shaped partition (301), one end of which is rotatably connected to the end of the operating rod (104) located on the outside; A baffle (302) is fixedly connected to the other end of the L-shaped partition (301); Bolt (303) is threadedly connected to baffle (302) and passes through baffle (302). The side wall of the machine top cover (2) is provided with a threaded groove that matches the bolt (303).
5. The iron concentrate grinding and sieving device according to claim 4, characterized in that, It also includes a filter collection mechanism, which comprises: The collection box (401) has an air inlet and an air outlet on its outer wall. The air inlet and the air outlet are respectively connected to the other side of the dust suction pipe (6) and one end of the dust-filtered air outlet pipe (8). A collection trough (402) is located at the bottom of the collection box (401), and the opening of the collection trough (402) faces upward; A fixing frame (403) is fixedly connected to the inner wall of the collection box (401); A filter screen (404) is detachably connected to the mounting bracket (403).
6. The iron concentrate grinding and sieving device according to claim 5, characterized in that, There are multiple filters (404) with different mesh sizes. The filter (404) with the smallest mesh size is closest to the air inlet, and the filter (404) with the largest mesh size is closest to the air outlet. The multiple filters (404) are connected to the fixing frame (403) in order of increasing mesh size.
7. The iron concentrate grinding and sieving device according to claim 6, characterized in that, One side wall of the top cover (2) is configured as a transparent viewing window (10), the rotating through hole is opened on the transparent viewing window (10), and the transparent viewing window (10) is provided with a threaded groove that is compatible with the bolt (303).