Trolley for sampling sintered ore in furnace

Abstract

The in-furnace sintered ore sampling trolley comprises a trolley body and a sampling mechanism, the trolley body comprises a sliding way, the sliding way is of a U-shaped groove structure provided with a bottom plate and two side plates, a supporting part playing a supporting role is arranged in the middle of the lower side of the bottom plate, and moving wheels are arranged at the end, away from the bottom plate, of the supporting part; the sampling mechanism comprises a sampling box slidably connected with the slide way, the sampling box is of a U-shaped groove structure with a horizontal plate and two vertical baffles, one end of the sampling box is of an opening structure and is provided with a sampling handrail, the other end of the sampling box is provided with a sealing baffle used for reducing falling of sintered ore, and the sampling handrail is used for driving the sampling box to slide in the slide way. Therefore, the sampling box extends below the vibrating screen below the blast furnace tank for sampling. The sampling box is pushed to stretch into the gap below the vibrating screen to sample the sintered ore, and the sampling box can receive the section of the blanking flow of the vibrating screen, so that the sampling of the sintered ore has representativeness, and the accuracy of particle size detection is improved.

Description

Technical Field

[0001] The present application relates to the field of sampling devices under blast furnace troughs, and in particular to a sintered ore sampling trolley for entering the furnace. Background Art

[0002] By sampling the sintered ore, we can master the particle size composition of the sintered ore entering the blast furnace trough, which has important guiding significance for the operation of the blast furnace. The distance from the vibrating screen under the trough to the measuring bucket is small, and there is no condition for installing an automatic sampler. At present, there are two main ways to detect the particle size of sintered ore in the industry. One is to take samples at the belt unloading port on the blast furnace trough. Taking advantage of the height difference, an automatic sampler is installed and equipped with a vibrating screen. The sieve models are 5mm, 10mm, 16mm, 25mm and 40mm respectively. The sampling interval is set. Generally, 3-5 batches are taken for each sample. The proportion of each particle size is calculated according to the mass of the particle size composition. The second is to manually take samples under the blast furnace trough, use a shovel to pick up about 30kg of sintered ore from the bottom of the vibrating screen, and then manually screen, weigh and calculate the particle size composition ratio of the sintered ore through a hand-cranked screen.

[0003] However, both methods currently used have certain defects, resulting in large deviations in the particle size detection of sintered ore. When the sintered ore transported by the belt on the trough falls into the silo, it will be further crushed due to the height difference, and then screened for the second time by the vibrating screen under the trough. The particle size <5mm is returned to the sintering workshop for secondary batching, and the particle size ≥5mm is the raw material entering the furnace. Therefore, sampling on the trough cannot truly reflect the particle size composition of the sintered ore entering the furnace. Manual sampling has a large deviation. Due to the small receiving area of ​​the shovel, it cannot directly receive the cross-section of the material flow under the vibrating screen, and the large particles rolling down from the vibrating screen have a certain speed. The large particles will impact the shovel and bounce off, thus affecting the accuracy of the test results.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the existing sintered ore sampling methods all have large errors, thereby reducing the accuracy of the particle size detection results and failing to provide effective guidance for blast furnace operation. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a sintered ore sampling trolley for entering a furnace.

[0006] The present application provides a sintered ore sampling trolley, which adopts the following technical solution: A trolley for sampling sintered ore entering a furnace comprises a trolley body and a sampling mechanism, the trolley body comprises a slide, the slide is constructed as a U-shaped groove structure with a bottom plate and two side plates, a supporting portion is provided in the middle of the lower side of the bottom plate for supporting, a movable wheel is provided at one end of the supporting portion away from the bottom plate, the sampling mechanism comprises a sampling box slidably connected to the slide, the sampling box is constructed as a U-shaped groove structure with a horizontal plate and two vertical baffles, one end of the sampling box is an open structure and is provided with a sampling handrail, and the other end is provided with a sealing baffle for reducing the falling of sintered ore, the sampling handrail is used to drive the sampling box to slide in the slide, so that the sampling box extends to below the vibrating screen under the blast furnace trough for sampling.

[0007] By adopting the above technical solution, the staff pushes the cart body to move to the outside of the vibrating screen, and drives the sampling box to extend out of the slideway by pushing the sampling handrail. The slideway and the sampling box are connected by sliding in a surface contact manner to improve the stability of the movement of the sampling box. The support part is arranged in the middle of the slideway so that the sampling box as a whole and half of the slideway can be extended into the gap below the vibrating screen under the blast furnace trough, so that the sampling process and the movement process of the cart body can maintain balance. The sintered ore falls into the sampling box through the vibrating screen. The sampling box has a large sampling area, a large sampling volume, and can directly access the cross section of the material flow under the vibrating screen, thereby improving the representativeness of the sintered ore sample. The two side plates block the sintered ore and reduce the phenomenon of sintered ore falling. After the sampling is completed, the staff drives the sampling box back to the slideway through the sampling handrail, and pushes the cart body to move to the position of detecting the particle size, so that the cart body is tilted and unloaded through the opening at one end of the sampling handrail. The above sampling method improves the representativeness of sintered ore samples, thereby improving the accuracy of sintered ore particle size detection and can provide effective guidance for blast furnace operation.

[0008] Preferably, a side baffle for reducing splashing or falling of sintered ore is provided on one side of the sampling box, and the side baffle is connected to one of the vertical baffles.

[0009] By adopting the above technical solution, the sintered ore falls into the sampling box from the opposite side of the side baffle, and the side baffle can effectively intercept the splashing sintered ore, thereby further reducing the falling of the sintered ore, further improving the representativeness of the sintered ore sampling and the accuracy of the sintered ore particle size detection. In addition, the side baffle can be connected with the dust cover at the outlet of the vibrating screen, thereby improving the stability of the sampling box during the sampling process, further reducing the spilling of the sintered ore, and further improving the accuracy of the sintered ore particle size detection.

[0010] Preferably, a limit plate for limiting the sliding movement of the sampling box is provided at the opening of the slideway, and the limit plate is provided at an end of the side plate away from the bottom plate.

[0011] By adopting the above technical solution, the limiting plate restricts the sampling box, reducing the phenomenon of the sampling box slipping out of the slide, thereby improving the connection stability between the sampling box and the slide, and further improving the sliding stability of the sampling box in the slide.

[0012] Preferably, the sampling handrail includes two vertical rods respectively arranged on both sides of the horizontal plate and a horizontal push rod arranged at one end of the vertical rod away from the horizontal plate, and the horizontal push rod is arranged above the vertical baffle.

[0013] By adopting the above technical solution, the sintered ore slides out of the sampling box through the gap between the two vertical rods when unloading, and the movement of the sampling box can be achieved by pushing the horizontal push rod.

[0014] Preferably, a limiting rod for limiting the sampling armrest is provided in the middle portion of the side panel.

[0015] By adopting the above technical solution, the limiting rod limits the sampling armrest, thereby limiting the sampling box, so that the sampling box partially extends out of the slide and partially abuts against the slide during the sampling process, thereby improving the stability of the sampling box and the cart body during the sampling process, and further improving the stability of the sampling process.

[0016] Preferably, the supporting portion includes two first supporting rods connected to the base plate, a first reinforcing rod for connecting the two first supporting rods, and a mounting plate arranged at one end of the first supporting rod away from the base plate, and the moving wheel is arranged on the mounting plate.

[0017] By adopting the above technical solution, the first support rod supports the slideway, and the first reinforcement rod improves the supporting effect of the first support rod.

[0018] Preferably, the support portion further includes two second support rods and a second reinforcement rod for connecting the two second support rods, one end of the second support rod is connected to the first support rod, and the other end is connected to the slideway.

[0019] By adopting the above technical solution, the provision of the second support rod and the second reinforcement rod further improves the supporting effect of the support part on the slideway, and improves the structural stability of the cart body.

[0020] Preferably, a movable armrest is provided on the slideway, and the movable armrest is used to drive the trolley body to move.

[0021] By adopting the above technical solution, the cart body can be quickly moved by pushing the movable armrest, thereby improving the convenience of moving the cart body.

[0022] Preferably, a plurality of rotating rollers are provided in the slideway, the rotating rollers are in sliding contact with the sampling plate, and the rotating rollers are rotatably connected to the side plate via a connecting shaft.

[0023] By adopting the above technical solution, the setting of the rotating roller reduces the resistance encountered by the sampling box when sliding, thereby improving the smoothness of the sliding of the sampling box and reducing the wear of the sampling box and the slide, thereby increasing the service life of the sampling box and the slide.

[0024] In summary, this application has the following beneficial technical effects: 1. The sampling box can collect samples of the sintered ore falling from the vibrating screen by sliding in the slideway. The sampling box has a large sampling area and can directly access the cross section of the material flow under the vibrating screen, thereby improving the representativeness of the sampling, reducing the sampling error, and further improving the accuracy of the sintered ore particle size detection, which can provide effective guidance for blast furnace operation; 2. The side baffles on the sampling box intercept the falling sintered ore, effectively reducing the splashing and falling of the sintered ore, and further improving the accuracy of sintered ore particle size detection; 3. The setting of the rotating roller reduces the friction resistance encountered by the collecting box during its movement, thereby improving the smoothness of the movement of the collecting box and increasing the service life of the collecting box and the slideway. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a sintered ore sampling trolley provided in an embodiment of the present application; Figure 2 yes Figure 1 A partial enlarged view of part A; Figure 3 This is a schematic structural diagram of another angle of the sintered ore sampling trolley provided in an embodiment of the present application; Figure 4 It is a schematic diagram of the structure of the slideway, sampling box, rotating roller and connecting shaft provided in the embodiment of the present application.

[0026] Explanation of the reference numerals: 1. trolley body; 11. slideway; 111. bottom plate; 112. side plate; 113. limit plate; 114. limit rod; 12. support part; 121. first support rod; 122. first reinforcement rod; 123. mounting plate; 124. second support rod; 125. second reinforcement rod; 13. moving wheel; 14. moving armrest; 15. rotating roller; 16. connecting shaft; 2. sampling mechanism; 21. sampling box; 211. horizontal plate; 212. vertical baffle; 213. sealing baffle; 22. sampling armrest; 221. vertical rod; 222. horizontal push rod; 23. side baffle. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-4 This application is described in further detail.

[0028] Embodiments 1-2 of the present application disclose a trolley for sampling sintered ore entering a furnace.

[0029] Example 1 Reference Figure 1 , Figure 2 and Figure 3 A trolley for sampling sintered ore entering a furnace comprises a trolley body 1 and a sampling mechanism 2. The trolley body 1 comprises a slideway 11. The slideway 11 is constructed as a U-shaped groove structure having a bottom plate 111 and two side plates 112. A support portion 12 for supporting is provided in the middle of the lower side of the bottom plate 111. A moving wheel 13 is provided at one end of the support portion 12 away from the bottom plate 111. The sampling mechanism 2 comprises a sampling box 21 slidably connected to the slideway 11. The sampling box 21 is constructed as a U-shaped groove structure having a horizontal plate 211 and two vertical baffles 212. One end of the sampling box 21 is an open structure and is provided with a sampling handrail 22. The other end is fixedly provided with a sealing baffle 213 for reducing the falling of sintered ore. The sampling handrail 22 is used to drive the sampling box 21 to slide in the slideway 11, so that the sampling box 21 extends to the bottom of the vibrating screen under the blast furnace tank for sampling.

[0030] In an embodiment of the present application, the length of the sampling box 21 is equal to that of the slide 11, the height of the cart body 1 is 1095 mm, the length of the slide 11 is 1980 mm, and the total length of the sampling box 21 when it extends out of the slide 11 for sampling is 3000 mm.

[0031] A side baffle 23 for reducing splashing or falling of sintered ore is provided on one side of the sampling box 21. The side baffle 23 is welded to a vertical baffle 212. The length of the side baffle 23 is half of the length of the vertical baffle 212. The side baffle 23 is arranged at one end of the vertical baffle 212 away from the sampling handrail 22.

[0032] A limit plate 113 is fixedly provided at the opening of the slideway 11 to limit the sliding of the sampling box 21, and the limit plate 113 is provided at one end of the side plate 112 away from the bottom plate 111. The setting of the limit plate 113 enables the slideway 11 to form a T-shaped slideway, thereby increasing the stability of the sampling box 21 sliding in the slideway 11.

[0033] The sampling handrail 22 includes two vertical rods 221 respectively fixedly arranged on both sides of the horizontal plate 211 and a horizontal push rod 222 fixedly arranged at one end of the vertical rod 221 away from the horizontal plate 211 . The horizontal push rod 222 is arranged above the vertical baffle 212 .

[0034] A limiting rod 114 for limiting the position of the sampling armrest 22 is provided in the middle of the side plate 112. The limiting rod 114 limits the sampling armrest 22. When the sampling armrest 22 moves to the middle of the slideway 11, the vertical rod 221 abuts against the limiting rod 114, so that the sampling box 21 partially extends out of the slideway 11 and partially stays in the slideway 11 during the sampling process, thereby improving the stability of the sampling box 21 during the sampling process and improving the balance stability of the cart body 1 during the sampling process.

[0035] The support portion 12 includes two first support rods 121 welded to the bottom plate 111, a first reinforcement rod 122 for connecting the two first support rods 121, and a mounting plate 123 disposed at one end of the first support rod 121 away from the bottom plate 111, and the moving wheel 13 is fixed to the mounting plate 123 by bolts. Both ends of the first reinforcement rod 122 are respectively welded to the two first support rods 121, and the mounting plate 123 is welded to the first support rods 121.

[0036] In the embodiment of the present application, the movable wheel 13 is a universal wheel, which allows the cart body 1 to rotate freely 360°, so as to facilitate sampling between different silos.

[0037] The support portion 12 further includes two second support rods 124 and a second reinforcement rod 125 for connecting the two second support rods 124 . One end of the second support rod 124 is welded to the first support rod 121 , and the other end is welded to the slideway 11 .

[0038] A movable handrail 14 is provided on the slideway 11, and the movable handrail 14 is used to drive the cart body 1 to move. The movable handrail 14 is welded to the bottom of the bottom plate 111, and the movable handrail 14 and the sampling handrail 22 are arranged on the same side.

[0039] Example 2 The difference from Example 1 is: Figure 4 A plurality of rotating rollers 15 are provided in the slideway 11, the rotating rollers 15 are in sliding contact with the sampling box 21, and the rotating rollers 15 are rotatably connected to the side plate 112 through the connecting shaft 16. There is a gap between the rotating rollers 15 and the bottom plate 111, which is conducive to the rolling of the rotating rollers 15.

[0040] The implementation principle of the sintered ore sampling trolley of the embodiment of the present application is as follows: the staff drives the trolley body 1 to move by pushing the movable handrail 14. When the trolley body 1 moves to the outside of the vibrating screen, the sampling box 21 is aligned with the gap below the vibrating screen, so that the front half of the slideway 11 away from the movable handrail 14 extends into the gap below the vibrating screen and pushes the sampling handrail 22, so that the sampling box 21 partially extends out of the slideway 11. At this time, the sampling box 21 is located below the vibrating screen as a whole. The sampling box 21 can perform cross-sectional sampling of the sintered ore, thereby improving the representativeness of the sampling, and then improving the accuracy of the particle size detection, and can provide effective guidance for the blast furnace operation. The sintered ore material flow falls from the side of the sampling box 21 where the side baffle 23 is not set to the sampling box 21. The side baffle 23 limits the falling sintered ore material flow, reducing the phenomenon of splashing or falling of the sintered ore during the falling process, thereby further improving the representativeness of the sampling. After sampling is completed, the staff pushes the sampling handrail 22 to make the sampling box 21 return to the slide 11 as a whole, and then drives the end of the slide 11 provided with the movable handrail 14 to tilt toward the ground, and the sintered ore sample can be discharged through the opening of the sampling box 21, so as to facilitate the particle size detection of the sintered ore. The setting of the rotating roller 15 reduces the friction resistance of the sampling box 21 during the sliding process, thereby reducing the labor intensity of the staff pushing the sampling box 21, and at the same time reduces the wear of the sampling box 21 and the slide 11, thereby increasing the service life of the sampling box 21 and the slide 11.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A trolley for sampling sintered ore entering a furnace, characterized in that: The invention comprises a trolley body (1) and a sampling mechanism (2), wherein the trolley body (1) comprises a slideway (11), the slideway (11) being constructed as a U-shaped groove structure having a bottom plate (111) and two side plates (112), a supporting portion (12) having a supporting function being arranged in the middle of the lower side of the bottom plate (111), a moving wheel (13) being arranged at one end of the supporting portion (12) away from the bottom plate (111), and the sampling mechanism (2) comprising a sampling box (13) slidably connected to the slideway (11). 21), the sampling box (21) is constructed as a U-shaped groove structure having a horizontal plate (211) and two vertical baffles (212), one end of the sampling box (21) is an open structure and is provided with a sampling handrail (22), and the other end is provided with a sealing baffle (213) for reducing the falling of sintered ore, and the sampling handrail (22) is used to drive the sampling box (21) to slide in the slideway (11), so that the sampling box (21) extends to the bottom of the vibrating screen under the blast furnace trough for sampling.

2. The sintered ore sampling trolley according to claim 1, characterized in that: A side baffle (23) for reducing splashing or falling of sintered ore is provided on one side of the sampling box (21), and the side baffle (23) is connected to one of the vertical baffles (212).

3. The sintered ore sampling trolley according to claim 1, characterized in that: A limiting plate (113) for limiting the sliding movement of the sampling box (21) is arranged at the opening of the slideway (11), and the limiting plate (113) is arranged at an end of the side plate (112) away from the bottom plate (111).

4. The sintered ore sampling trolley according to claim 1, characterized in that: The sampling handrail (22) comprises two vertical rods (221) respectively arranged on both sides of the horizontal plate (211) and a horizontal push rod (222) arranged at one end of the vertical rod (221) away from the horizontal plate (211), and the horizontal push rod (222) is arranged above the vertical baffle (212).

5. The sintered ore sampling trolley according to claim 4, characterized in that: A limiting rod (114) for limiting the position of the sampling armrest (22) is provided in the middle of the side plate (112).

6. The sintered ore sampling trolley according to claim 1, characterized in that: The support portion (12) comprises two first support rods (121) connected to the base plate (111), a first reinforcement rod (122) for connecting the two first support rods (121), and a mounting plate (123) arranged at one end of the first support rod (121) away from the base plate (111), and the moving wheel (13) is arranged on the mounting plate (123).

7. The sintered ore sampling trolley according to claim 6, characterized in that: The support portion (12) further comprises two second support rods (124) and a second reinforcement rod (125) for connecting the two second support rods (124), wherein one end of the second support rod (124) is connected to the first support rod (121), and the other end is connected to the slideway (11).

8. The sintered ore sampling trolley according to claim 1, characterized in that: A movable armrest (14) is provided on the slideway (11), and the movable armrest (14) is used to drive the cart body (1) to move.

9. The sintered ore sampling trolley according to claim 1, characterized in that: A plurality of rotating rollers (15) are arranged in the slideway (11), the rotating rollers (15) are in sliding contact with the sampling plate, and the rotating rollers (15) are rotatably connected to the side plate (112) via a connecting shaft (16).

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