Trolley material cleaning system for lump ore drying
By integrating a mechanical vibration mechanism and a detection switch into the bogie reset wheel device, the problem of poor cleaning effect of existing cleaning devices is solved, achieving efficient and low-cost bogie grate cleaning, and improving the drying effect of lump ore and the blast furnace smelting efficiency.
Patent Information
- Application Number
- CN202422492398.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Existing grate cleaning devices have poor material cleaning effect, high investment cost, and are prone to environmental pollution. They cannot effectively clean firmly bonded materials, affecting the drying effect of lump ore and the cost of blast furnace smelting.
A reset and vibration mechanism is adopted, integrating the reset wheel and vibration motor on the trolley reset wheel device. The material adhering to the trolley grate is removed by mechanical vibration, and the cleaning is automated by combining with the detection switch.
This achieves a non-sticky state in the through holes of the trolley grate, reduces drying air resistance, improves drying effect, reduces energy consumption, and lowers equipment costs.
Smart Images
Figure CN223525605U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the equipment for lump ore drying, concretely relates to a trolley cleaning system for lump ore drying and belongs to the technical field of steel production equipment. BACKGROUND
[0002] Common furnace charging materials of blast furnace include sintered ore, pellet ore and natural lump ore. The so-called reasonable blast furnace charging material structure is to find the most suitable matching ratio of different kinds of iron-containing ores by adjusting the ratio of sintered ore, pellet ore and natural lump ore in the charging iron ore, so that the economic and technical indicators of the blast furnace smelting under the charging material structure are relatively ideal, and the unit pig iron smelting consumption cost is relatively lowest.
[0003] At present, the charging lump ore is generally high in viscosity and high in powder content, especially the overseas imported lump ore, which is generally about 6% in moisture content and more than 20% in powder content. Due to water transportation, long transportation distance, many logistics links, open-air storage in the turnover process, increased damage in unloading and loading, etc., the powder content of the lump ore is even more than 30%. At the same time, the increase of water content in the lump ore causes a large amount of powder to adhere to the surface of the lump ore, and the screen plate of the vibrating screen is often blocked during screening, so that the screening effect cannot be achieved, resulting in that the powder adhering to the surface of the lump ore finally enters the blast furnace, affecting the blast furnace permeability, increasing the blast furnace smelting cost, and affecting the stable and smooth operation of the blast furnace. Therefore, the reduction of the moisture content of the lump ore has important significance for reducing the ironmaking cost and enhancing the stability of the furnace condition.
[0004] Steel enterprises begin to increase the lump ore drying system to dry the lump ore, the moisture content before drying is 6-7%, and the moisture content after drying is 2-3%, and then the lump ore is screened. The advantage of this process method is that the drying effect is obvious, which can effectively reduce the powder content of the charging lump ore, thereby reducing the smelting cost of the blast furnace. However, due to the high water content, high powder content and large viscosity of the lump ore, a grate cleaning device needs to be arranged in the unloading area to remove the adhering material on the trolley grate, so that there is no adhering material on the grate hole when the trolley enters the next working cycle, the air passing area of the trolley is ensured, and the drying effect is improved. The existing grate cleaning device has the following problems: ① no grate cleaning device; ② high-pressure air blowing is used, which cannot clean the firmly adhering material, the cleaning capacity is not adjustable, and environmental pollution is easy to cause; ③ ultrasonic cleaning, high equipment cost, small operation area and limited action distance. CONTENT OF THE UTILITY MODEL
[0005] In view of the problems of poor cleaning effect and high investment cost of the existing grate cleaning, the utility model provides a trolley cleaning system for lump ore drying, which is obtained by combining the trolley reset wheel and the vibration mechanism of the drying system, that is, integrating the mechanical vibration mechanism on the reset wheel device, so that the residual sticky material on the trolley grate can be removed while completing the trolley turnover and resetting, ensuring the through hole of the trolley grate without sticky material, ensuring the air passing area of the trolley grate, reducing the resistance of the drying air passing through the trolley grate, improving the drying effect and reducing the energy consumption of the dryer.
[0006] To achieve the above technical purposes, the technical scheme adopted by the utility model is as follows:
[0007] A trolley cleaning system for lump ore drying, which comprises a pressure rail and a reset and vibration mechanism. The trolley is arranged on the pressure rail and can move on the pressure rail. Part of the rail body of the pressure rail is upwardly protruded to form a curved rail part. The reset and vibration mechanism is arranged below the curved rail part and makes the trolley body contact the reset and vibration mechanism when the trolley is turned over through the curved rail part.
[0008] Preferably, the reset and vibration mechanism comprises a reset wheel and a vibration motor. The reset wheel is arranged below the curved rail part through a support. The vibration motor is arranged on one side of the support and connected with the support. The vibration motor vibrates the support and then makes the reset wheel vibrate synchronously.
[0009] Preferably, the reset and vibration mechanism further comprises a damping base. The damping base is arranged at the bottom of the support.
[0010] Preferably, in the horizontal direction of the trolley operation, the horizontal position of the reset wheel is such that when the trolley body just contacts the reset wheel, the included angle between the trolley body and the horizontal direction is not less than 70°, preferably 80-90°.
[0011] Preferably, in the vertical direction, the vertical height of the reset wheel is such that when the trolley body just separates from the reset wheel, the included angle between the trolley body and the horizontal direction is not more than 10°, preferably not more than 5°.
[0012] Preferably, a first detection switch is arranged upstream of the curved rail part along the running direction of the trolley, and a second detection switch is arranged downstream of the curved rail part.
[0013] Preferably, when the rocker arm of the trolley runs to the first detection switch, the trolley body just contacts the reset wheel. When the rocker arm of the trolley runs to the second detection switch, the trolley body just separates from the reset wheel.
[0014] Preferably, in the vertical plane, the curved rail part as a whole is trapezoidal or arc-shaped.
[0015] Preferably, the height of the upward protrusion of the curved track portion and the span of the curved track portion along the direction of the trolley movement enable the trolley to perform a 60-100° turning and resetting action under the dragging of the rocker arm after passing through the curved track portion.
[0016] Preferably, the trolley performs a 75-90° turning and resetting action under the dragging of the rocker arm after passing through the curved track portion.
[0017] Preferably, the trolley performs a 75-90° turning and resetting action under the dragging of the rocker arm after passing through the curved track portion.
[0018] In the utility model, the lump ore is transported on the press rail by the trolley, and is unloaded in the unloading area after passing through the hot air drying area, in the drying process, the powder and some fine granular bulk material adhered to the lump ore will inevitably adhere to the grate plate of the trolley, thereby causing the ventilation hole of the trolley grate plate to be blocked, and thereby affecting the subsequent drying effect of the lump ore. In the utility model, in order to realize the cleaning of the residual material on the trolley grate plate, a mechanical vibrating mechanism (such as a vibrating motor) is integrated on the resetting wheel device, so that the residual adhering material on the trolley grate plate can be removed at the same time of completing the trolley turning, unloading and resetting, the through hole of the trolley grate plate is ensured to be free of adhering material, the air passing area of the trolley grate plate is ensured, the resistance of the drying air passing through the trolley grate plate is reduced, the drying effect is improved, and the energy consumption of the dryer is reduced.
[0019] In the utility model, in order to realize the turning and unloading action of the trolley, part of the rail body of the press rail is protruded upward to form a curved track portion (for example, a trapezoidal curved track or an arc-shaped curved track), under the dragging of the rocker arm of the trolley, the rocker wheel starts to rise along the curved track, the trolley body slowly turns under the eccentric action of its own and the material gravity along with the trolley shaft, and the lump ore is unloaded into the unloading groove. After the trolley is unloaded, the trolley body continues to move forward and starts to reset under the assistance of the resetting wheel (located below the curved track portion), when the rocker wheel of the trolley starts to slowly descend along the curved track, it will force the trolley to rotate in the opposite direction until it is reset and enters the next working cycle. During the time when the trolley body contacts and separates from the resetting wheel, the resetting wheel will vibrate under the action of the vibrating motor, thereby causing the trolley body in contact with it to also vibrate and shake off the powder and bulk material adhered to the trolley body.
[0020] In the utility model, in order to better realize the overturning and resetting action of the trolley body, the height of the upward protrusion of the curved rail part and the span of the curved rail part in the horizontal direction (i.e. the running direction of the trolley) all have certain requirements, that is, the area contained by the lower side of the curved rail part needs to satisfy the space for the trolley to complete overturning and resetting. In the preferred embodiment, the height of the upward protrusion of the curved rail part and the span of the curved rail part along the running direction of the trolley can enable the trolley to perform 60~100° (preferably 75~90°) overturning and resetting action under the dragging of the rocker arm after passing through the curved rail part. It should be noted that if the space reserved under the lower side of the curved rail part is too large, space is wasted, and the site occupation and equipment investment cost are both increased, and if the reserved space is too small, the trolley cannot smoothly perform overturning to complete unloading, and incomplete unloading can affect subsequent drying.
[0021] In the utility model, in order to better realize the cleaning of the residual material in the trolley body, the position of the resetting and rapping mechanism in space also has strict requirements. Among them: in the horizontal direction of the trolley running, the horizontal position of the resetting wheel makes the angle between the trolley body and the horizontal direction not less than 70° (preferably 80~90°) when the trolley body just contacts the resetting wheel; that is, the trolley body needs to be at a large inclination angle when the trolley body starts to contact the resetting wheel, so that after the resetting wheel transmits vibration to the trolley body, the material shaken off can roll out of the trolley body under its own gravity. In the vertical direction, the vertical height of the resetting wheel makes the angle between the trolley body and the horizontal direction not more than 10° (preferably not more than 5°) when the trolley body is about to separate from the resetting wheel; that is, the trolley body needs to be in a state close to horizontal when the trolley body starts to separate from the resetting wheel, so as to facilitate smooth resetting of the trolley.
[0022] In the utility model, along the running direction of the trolley, a first detection switch is further arranged at the upstream of the curved rail part, and a second detection switch is further arranged at the downstream of the curved rail part, and the first detection switch and the second detection switch are interlocked with the resetting and rapping mechanism, that is, when the trolley passes through the first detection switch (at this time, the trolley body is about to contact or just contacts the resetting wheel), the first detection switch feeds back a signal to the vibration motor to make the vibration motor start working, and when the trolley passes through the second detection switch (at this time, the trolley body is about to separate or just separates from the resetting wheel), the second detection switch feeds back a signal to the vibration motor to make the vibration motor stop working. That is, through the coordinated action of the upstream and downstream detection switches of the curved rail part and the resetting and rapping mechanism, automatic cleaning of the residual material on the trolley body can be realized. It should be further noted that in order to improve the service life of the resetting wheel, a wear-resistant layer can be coated on the surface of the resetting wheel.
[0023] Compared with the prior art, the utility model has the beneficial technical effects as follows:
[0024] 1: The trolley cleaning system for lump ore drying of the utility model can remove residual sticky material on the trolley grating while completing trolley overturning and unloading and resetting, ensure the through hole of the trolley grating has no sticky material, ensure the air passing area of the trolley grating, reduce the resistance of drying air passing through the trolley grating, improve the drying effect, and reduce the energy consumption of the dryer.
[0025] 2: The trolley cleaning system for lump ore drying of the utility model also interlocks the detection mechanism of the trolley running position with the resetting and jolting mechanism, so that the residual material on the vehicle body can be efficiently and automatically cleaned.
[0026] 3: The trolley cleaning system for lump ore drying of the utility model also has the advantages of simple overall structure, convenient operation, low investment and maintenance cost, adjustable jolting force, good cleaning and resetting effect, strong practicality, and convenience for popularization and application. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 It is the overall structure schematic view of the system of the utility model.
[0028] Figure 2 It is the A direction structure schematic view of the utility model. Figure 1
[0029] Figure 3 It is the forward structure schematic view of the resetting and jolting mechanism of the utility model.
[0030] Figure 4 It is the lateral structure schematic view of the resetting and jolting mechanism of the utility model.
[0031] Reference signs: 1: rail pressing; 101: curved rail part; 102: first detection switch; 103: second detection switch; 2: resetting and jolting mechanism; 201: resetting wheel; 202: vibration motor; 203: support; 204: damping base; 3: trolley; 301: vehicle body; 302: rocker arm. DETAILED DESCRIPTION
[0032] The technical scheme of the utility model will be illustrated below, and the scope of protection of the utility model includes but is not limited to the following embodiments.
[0033] A trolley cleaning system for lump ore drying, which comprises a rail pressing 1 and a resetting and jolting mechanism 2. The trolley 3 is arranged on the rail pressing 1 and can move on the rail pressing 1. Part of the rail body of the rail pressing 1 is upwardly protruding to form a curved rail part 101. The resetting and jolting mechanism 2 is arranged below the curved rail part 101, and the vehicle body 301 of the trolley 3 will contact the resetting and jolting mechanism 2 when the trolley 3 is overturned through the curved rail part 101.
[0034] As preferred, the reset and shaking mechanism 2 comprises a reset wheel 201 and a vibration motor 202. The reset wheel 201 is arranged below the curved track 101 through a support 203. The vibration motor 202 is arranged at one side of the support 203 and connected with the support 203. The vibration motor 202 vibrates the support 203 and then the reset wheel 201 synchronously.
[0035] As preferred, the reset and shaking mechanism 2 further comprises a damping base 204. The damping base 204 is arranged at the bottom of the support 203.
[0036] As preferred, in the horizontal direction of the trolley 3, the horizontal position of the reset wheel 201 is such that when the trolley body 301 just contacts the reset wheel 201, the included angle between the trolley body 301 and the horizontal direction is not less than 70°, preferably 80-90°.
[0037] As preferred, in the vertical direction, the vertical height of the reset wheel 201 is such that when the trolley body 301 just separates from the reset wheel 201, the included angle between the trolley body 301 and the horizontal direction is not more than 10°, preferably not more than 5°.
[0038] As preferred, a first detection switch 102 is arranged at the upstream of the curved track 101 along the running direction of the trolley 3, and a second detection switch 103 is arranged at the downstream of the curved track 101. Both the first detection switch 102 and the second detection switch 103 are interlocked with the reset and shaking mechanism 2.
[0039] As preferred, when the rocker arm 302 of the trolley 3 runs to the first detection switch 102, the trolley body 301 just contacts the reset wheel 201. When the rocker arm 302 of the trolley 3 runs to the second detection switch 103, the trolley body 301 just separates from the reset wheel 201.
[0040] As preferred, in the vertical plane, the curved track 101 as a whole is trapezoidal or arc-shaped.
[0041] As preferred, the height of the upward protrusion of the curved track 101 and the span of the curved track 101 along the running direction of the trolley 3 are such that the trolley body 301 of the trolley 3 can perform the turning and reset action under the dragging of the rocker arm 302 after passing through the curved track 101.
[0042] As preferred, the trolley body 301 of the trolley 3 can perform the turning and reset action of 60-100° under the dragging of the rocker arm 302 after passing through the curved track 101.
[0043] As preferred, the trolley body 301 of the trolley 3 can perform the turning and reset action of 75-90° under the dragging of the rocker arm 302 after passing through the curved track 101. Embodiment 1
[0044] As shown in Figures 1-4 A block ore drying trolley cleaning system, which comprises a pressing rail 1 and a reset and jolt mechanism 2. A trolley 3 is arranged on the pressing rail 1 and can move on the pressing rail 1. Part of the rail body of the pressing rail 1 is raised upward to form a curved rail part 101. The reset and jolt mechanism 2 is arranged below the curved rail part 101, and when the trolley 3 is flipped through the curved rail part 101, the trolley body 301 of the trolley 3 will contact the reset and jolt mechanism 2. Example 2
[0045] Repeat Example 1, except that the reset and jolt mechanism 2 comprises a reset wheel 201 and a vibration motor 202. The reset wheel 201 is arranged below the curved rail part 101 through a support 203. The vibration motor 202 is arranged on one side of the support 203 and connected with the support 203. The vibration motor 202 synchronously vibrates the reset wheel 201 by vibrating the support 203. Example 3
[0046] Repeat Example 2, except that the reset and jolt mechanism 2 further comprises a shock absorbing base 204. The shock absorbing base 204 is arranged at the bottom of the support 203. Example 4
[0047] Repeat Example 3, except that in the horizontal direction of the trolley 3 operation, the horizontal position of the reset wheel 201 is such that when the trolley body 301 of the trolley 3 just contacts the reset wheel 201, the included angle between the trolley body 301 and the horizontal direction is 75°. Example 5
[0048] Repeat Example 4, except that when the trolley body 301 of the trolley 3 just contacts the reset wheel 201, the included angle between the trolley body 301 and the horizontal direction is 90°. Example 6
[0049] Repeat Example 5, except that in the vertical direction, the vertical height of the reset wheel 201 is such that when the trolley body 301 of the trolley 3 just separates from the reset wheel 201, the included angle between the trolley body 301 and the horizontal direction is 6°. Example 7
[0050] Repeat Example 6, except that the vertical height of the reset wheel 201 is such that when the trolley body 301 of the trolley 3 just separates from the reset wheel 201, the included angle between the trolley body 301 and the horizontal direction is 3°. Example 8
[0051] Example 9 is repeated, except that a first detection switch 102 is further provided upstream of the curved track portion 101 in the running direction of the trolley 3, and a second detection switch 103 is further provided downstream of the curved track portion 101. Both the first detection switch 102 and the second detection switch 103 are interlocked with the reset and jolting mechanism 2. Example 9
[0052] Example 8 is repeated, except that when the rocker arm 302 of the trolley 3 runs to the first detection switch 102, the trolley body 301 is just in contact with the reset wheel 201. When the rocker arm 302 of the trolley 3 runs to the second detection switch 103, the trolley body 301 is just separated from the reset wheel 201. Example 10
[0053] Example 9 is repeated, except that in the vertical plane, the curved track portion 101 is in the shape of an arc as a whole. Example 11
[0054] Example 10 is repeated, except that in the vertical plane, the curved track portion 101 is in the shape of a trapezoid as a whole. Example 12
[0055] Example 11 is repeated, except that the height of the upward protrusion of the curved track portion 101 and the span of the curved track portion 101 in the running direction of the trolley 3 are such that the trolley body 301 of the trolley 3 can perform a flipping and resetting action under the dragging of the rocker arm 302 after passing through the curved track portion 101. Example 13
[0056] Example 12 is repeated, except that the trolley body 301 of the trolley 3 can perform a flipping and resetting action of 85° under the dragging of the rocker arm 302 after passing through the curved track portion 101. Example 14
[0057] Example 13 is repeated, except that the trolley body 301 of the trolley 3 can perform a flipping and resetting action of 90° under the dragging of the rocker arm 302 after passing through the curved track portion 101.
Claims
1. A jumbo car cleaning system for use in the drying of lump ore, characterised in that: The cleaning system comprises a pressing rail (1) and a resetting and shaking mechanism (2); a trolley (3) is arranged on the pressing rail (1) and can move on the pressing rail (1); part of the rail body of the pressing rail (1) is upwardly protruded to form a curved rail part (101); the resetting and shaking mechanism (2) is arranged below the curved rail part (101) and makes the trolley body (301) of the trolley (3) contact the resetting and shaking mechanism (2) when the trolley (3) is turned over through the curved rail part (101).
2. The purge system of claim 1, wherein: The resetting and shaking mechanism (2) comprises a resetting wheel (201) and a vibration motor (202); the resetting wheel (201) is arranged below the curved rail part (101) through a support (203); the vibration motor (202) is arranged on one side of the support (203) and connected with the support (203); the vibration motor (202) synchronously vibrates the resetting wheel (201) through the vibration support (203).
3. The purge system of claim 2, wherein: The resetting and shaking mechanism (2) further comprises a damping base (204); the damping base (204) is arranged at the bottom of the support (203).
4. The purge system of claim 2, wherein: In the horizontal direction of the trolley (3), the horizontal position of the resetting wheel (201) makes the angle between the trolley body (301) and the horizontal direction not less than 70° when the trolley body (301) just contacts the resetting wheel (201).
5. The purge system of claim 4, wherein: In the horizontal direction of the trolley (3), the horizontal position of the resetting wheel (201) makes the angle between the trolley body (301) and the horizontal direction 80-90° when the trolley body (301) just contacts the resetting wheel (201).
6. The purge system of claim 2, wherein: In the vertical direction, the vertical height of the resetting wheel (201) makes the angle between the trolley body (301) and the horizontal direction not more than 10° when the trolley body (301) just separates from the resetting wheel (201).
7. The purge system of claim 6, wherein: In the vertical direction, the vertical height of the resetting wheel (201) makes the angle between the trolley body (301) and the horizontal direction not more than 5° when the trolley body (301) just separates from the resetting wheel (201).
8. The purge system of any of claims 2-7, wherein: A first detection switch (102) is arranged at the upstream of the curved rail part (101) along the running direction of the trolley (3), and a second detection switch (103) is arranged at the downstream of the curved rail part (101).
9. The purge system of claim 8, wherein: When the rocker arm (302) of the trolley (3) runs to the first detection switch (102), the trolley body (301) just contacts the resetting wheel (201); when the rocker arm (302) of the trolley (3) runs to the second detection switch (103), the trolley body (301) just separates from the resetting wheel (201).
10. The purge system of any one of claims 1-7, 9, wherein: In the vertical plane, the curved rail part (101) is in the shape of a trapezoid or an arc.
11. The purge system of claim 8, wherein: In the vertical plane, the curved rail part (101) is in the shape of a trapezoid or an arc.
12. The clearing system of any of claims 1-7, 9, 11, wherein: The height of the upward protrusion of the curved rail part (101) and the span of the curved rail part (101) along the running direction of the trolley (3) can make the trolley body (301) of the trolley (3) turn over and reset under the dragging of the rocker arm (302) after the trolley (3) passes through the curved rail part (101).
13. The purge system of claim 8, wherein: The height of the upward protrusion of the curved rail part (101) and the span of the curved rail part (101) along the running direction of the trolley (3) can make the trolley (3) perform a turnover and reset action after passing through the curved rail part (101).
14. The purge system of claim 10, wherein: The height of the upward protrusion of the curved rail part (101) and the span of the curved rail part (101) along the running direction of the trolley (3) can make the trolley (3) perform a turnover and reset action after passing through the curved rail part (101).
15. The purge system of claim 12, wherein: The trolley (3) can perform a 60-100° turnover and reset action after passing through the curved rail part (101) under the dragging of the rocker arm (302).
16. The purge system of claim 13 or 14, wherein: The trolley (3) can perform a 60-100° turnover and reset action after passing through the curved rail part (101) under the dragging of the rocker arm (302).
17. The purge system of claim 15, wherein: The trolley (3) can perform a 75-90° turnover and reset action after passing through the curved rail part (101) under the dragging of the rocker arm (302).
18. The purge system of claim 16, wherein: The trolley (3) can perform a 75-90° turnover and reset action after passing through the curved rail part (101) under the dragging of the rocker arm (302). The trolley (3) can perform a 75-90° turnover and reset action after passing through the curved rail part (101) under the dragging of the rocker arm (302).