Mobile slag crushing, screening and heavy metal passivation integrated equipment

Abstract

The application discloses a mobile slag crushing, screening and heavy metal passivation integrated equipment, which comprises a moving wheel, a rotating disc, a connecting outlet, a processing equipment, an external interface and a protection box, the moving wheel is connected with the rotating disc, the rotating disc is installed at the bottom of the protection box, the external interface is connected with the processing equipment through the protection box, and the connecting outlet and the protection box are integrated; the processing equipment comprises a secondary sorting group, a connecting inlet, a primary sorting group, a main crushing group and a passivation device, the connecting inlet is fixed to the top of the primary sorting group, double-sensor detectors are adopted to accurately detect and screen the materials in the first step, explosives mixed in the slag can be quickly identified and separated in the initial stage of slag conveying, and then the explosives are subjected to secondary deep separation through the cooperation of a partition plate, a breathable grid and a fan group, the airflow separation principle of light and heavy materials is utilized, a double safety guarantee system is formed, and the safety hidden danger caused by crushing explosives in the crushing link can be avoided from the source.

Description

Technical Field

[0001] This invention belongs to the field of crushing, and more specifically, it relates to an integrated mobile slag crushing, screening and heavy metal passivation equipment. Background Technology

[0002] Slag crushing and screening is a key pretreatment process in the mining industry. Its function is to process slag with uneven particle size after mining or smelting into qualified materials with uniform particle size through the coordinated operation of graded screening and step-by-step crushing. This not only realizes the recycling and reprocessing of large-particle slag, but also provides basic raw materials with qualified particle size for subsequent resource utilization and harmless disposal of slag.

[0003] Existing slag crushing and screening equipment focuses on efficient control of material particle size and generally adopts a single crushing or screening structure. When processing slag containing explosives, the squeezing and friction during equipment operation can easily trigger a secondary explosion of the explosives, posing a serious safety hazard. Summary of the Invention

[0004] To address the aforementioned technical problems, the purpose and effectiveness of the mobile slag crushing, screening, and heavy metal passivation integrated equipment of this invention are achieved through the following specific technical means:

[0005] Its structure includes a moving wheel, a turntable, an outlet, a processing device, an external interface, and a protective box. The moving wheel is connected to the turntable, the turntable is installed at the bottom of the protective box, the external interface is connected to the processing device through the protective box, and the outlet and the protective box are an integrated structure.

[0006] The processing equipment includes a secondary sorting group, an inlet, a primary sorting group, a main crushing group, and a passivation device. The inlet is fixed at the top of the primary sorting group, the primary sorting group is located diagonally above the secondary sorting group, the secondary sorting group is located to the side of the main crushing group, the passivation device is fixed at the bottom of the main crushing group, and the protective box is equipped with an explosion-proof protective layer.

[0007] As a further improvement of the present invention, the initial sorting assembly includes a passive spring, a baffle, an active spring, an adjusting baffle, a storage box, a dual-sensor detector, a screen, a vibrator, a screen outlet, an output port, an inclined plate, and a housing. The passive spring and the active spring are installed between the baffle and the housing. The vibrator is controlled and connected to the active spring. The adjusting baffle is connected between the inclined plate and the output port and can be flipped. The dual-sensor detector is flush with the slope of the inclined plate. The baffle is connected to the screen. The screen outlet is connected to the baffle. The storage box is connected to the bottom of the housing. The vibrator drives the screen to vibrate by controlling the active spring, while the passive spring helps maintain the vibration stability of the screen, ensuring that the slag is fully screened on the screen.

[0008] As a further improvement of the present invention, the secondary sorting group includes a guide port, a limiting plate, a rubber rolling roller, a conveyor chain, a motor, a partition, a ventilated grid, a secondary storage box, an elastic baffle, and a fan unit. The guide port is connected to the bottom of the limiting plate, the rubber rolling roller is located between the conveyor chain and the limiting plate, the motor is connected to the conveyor chain, the ventilated grid and the partition are integrated, the secondary storage box is connected to the inside of the limiting plate, the elastic baffle is installed above the guide port, and the fan unit is installed at the bottom of the partition. The rubber rolling roller can crush hard and brittle slag, while the good toughness of the explosive is not affected.

[0009] As a further improvement of the present invention, the main crushing unit includes a controller, a guide plate, a uniform feeding chain, a main crushing roller, and a small motor. The controller controls and connects to the uniform feeding chain, the guide plate is connected to the controller, and the small motor controls and connects to the main crushing roller. The guide plate can accurately guide the slag after secondary sorting onto the uniform feeding chain. By adjusting the conveying speed of the uniform feeding chain, it is ensured that the slag enters the main crushing roller evenly and avoids congestion.

[0010] As a further improvement of the present invention, the screen outlet is connected to the external interface, the screen is inclined at a 45-degree angle and can vibrate synchronously with the passive spring and the active spring, two inclined plates are provided to extend the movement distance of the slag and facilitate detection by the dual-sensor detector, and the screen outlet and the external interface are elastically connected to adapt to vibration force.

[0011] As a further improvement of the present invention, the rubber crushing roller is a crushing roller with a rubber ring, which can crush slag without crushing explosives. The partition and the ventilation grid cooperate to guide the air to blow in the horizontal direction. The elastic baffle will be pressed by the weight of the slag. The rubber crushing roller has good buffering performance while ensuring crushing effect, which can effectively avoid crushing and detonating dangerous materials such as explosives that may be present in the slag.

[0012] As a further improvement of the present invention, the passivation device includes a connecting chain, a control box, an atomizing spray group, a limiting block, a control motor, side baffles, a desensitizing agent storage tank, and a passivation box. The connecting chain is controlled and connected to the control motor. The desensitizing agent storage tank is connected to the atomizing spray group through the control box. The passivation box is fixed to the surface of the side baffles. The limiting block is fixedly installed between the two side baffles. The control box can accurately control the delivery amount of desensitizing agent in the desensitizing agent storage tank and the spraying pressure of the atomizing spray group.

[0013] As a further improvement of the present invention, the atomizing spray group is located above the connecting chain to spray the slag. There are five atomizing spray groups that are evenly distributed in a horizontal direction. The limiting block guides and limits the conveying of the slag. The connecting chain outputs the slag through the outlet channel connected to the outlet. The passivation box is equipped with a baffle to prevent the slag from accumulating.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Firstly, the use of dual-sensor detectors for the first step of precise detection and screening of materials can quickly identify and separate the mixed explosives in the early stage of slag transportation. Subsequently, through the coordinated operation of baffles, ventilation grids and blowers, the principle of airflow separation of light and heavy materials is used to achieve a second deep separation of explosives, forming a dual safety guarantee system to avoid safety hazards caused by crushing explosives in the crushing process from the source.

[0016] Secondly, the rubber roller adopts a rubber ring sleeve structure, which utilizes the elasticity and toughness of rubber to achieve efficient crushing and refining of hard and brittle slag, while having no destructive effect on tough ammonium nitrate explosives. This ensures the crushing effect of slag and avoids the safety risks caused by the compression and friction of explosives during the crushing process, thus balancing crushing efficiency and operational safety.

[0017] Thirdly, after the slag undergoes a full-process crushing process, it can be continuously passivated by a passivation device. The passivating agent can be evenly coated on the surface of the slag, effectively reducing the migration activity of heavy metals in the slag. Moreover, the passivation operation is seamlessly connected with the crushing process, eliminating the need for additional material transfer. This improves processing efficiency while achieving harmless pretreatment of the slag.

[0018] Fourth, the equipment is equipped with wheels and a turntable, giving it flexible mobility and the ability to travel directly to scattered slag heaps for on-site processing. This significantly reduces the cost of slag transfer and the risk of secondary pollution during transportation. The turntable also allows for flexible adjustment of the equipment's operating angle to adapt to different slag heap configurations, greatly improving the equipment's adaptability and ease of operation.

[0019] Fifth, the vibrator in the screening process, combined with the active and passive springs in a coordinated vibration structure, can effectively prevent screen clogging, ensure the stability of screening efficiency, and allow large-diameter slag particles on the screen to be returned and reprocessed through the external interface, thereby achieving slag grading and crushing and improving the particle size uniformity of the final product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the mobile slag crushing, screening and heavy metal passivation integrated equipment of the present invention.

[0021] Figure 2 This is a schematic diagram of the processing device of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the first sorting group of the present invention.

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the first sorting group of the present invention.

[0024] Figure 5 This is a schematic diagram of the secondary sorting group of the present invention.

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the secondary sorting group of the present invention.

[0026] Figure 7 This is a schematic diagram of the main crushing unit of the present invention.

[0027] Figure 8 This is a schematic diagram of the passivation device of the present invention.

[0028] In the diagram: 1. Moving wheel; 2. Turntable; 3. Inlet / outlet; 4. Processing equipment; 5. External interface; 6. Protective box; 41. Secondary sorting group; 42. Inlet / outlet; 43. Primary sorting group; 44. Main crushing group; 45. Passive device; 31. Passive spring; 32. Baffle; 33. Active spring; 34. Adjustable baffle; 35. Storage box; 36. Dual-sensor detector; 37. Screen; 38. Vibrator; 39. Screen outlet; 310. Output port; 311. Inclined plate; 312. Housing. 61. Guide port - 62. Limiting plate - 63. Rubber rolling roller - 64. Conveyor chain - 65. Motor - 66. Partition plate - 67. Ventilation grid - 68. Secondary storage box - 69. Elastic baffle - 610. Fan unit - 610. Control unit - 21. Guide plate - 22. Uniform feeding chain - 23. Main crushing roller - 24. Small motor - 25. Connecting chain - 51. Control box - 52. Atomizing spray group - 53. Limiting block - 54. Control motor - 55. Side baffle - 56. Desensitizing agent storage tank - 57. Passivation box - 58. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] Example 1: As shown in the attached document Figure 1 To be continued Figure 7 As shown:

[0031] This invention provides a mobile slag crushing, screening and heavy metal passivation integrated equipment, the structure of which includes a mobile wheel 1, a turntable 2, an outlet 3, a processing device 4, an external interface 5, and a protective box 6. The mobile wheel 1 is connected to the turntable 2, the turntable 2 is installed at the bottom of the protective box 6, the external interface 5 is connected to the processing device 4 through the protective box 6, and the outlet 3 and the protective box 6 are an integrated structure.

[0032] The processing equipment 4 includes a secondary sorting group 41, an inlet 42, a primary sorting group 43, a main crushing group 44, and a passivation device 45. The inlet 42 is fixed to the top of the primary sorting group 43, the primary sorting group 43 is located diagonally above the secondary sorting group 41, the secondary sorting group 41 is located to the side of the main crushing group 44, and the passivation device 45 is fixed to the bottom of the main crushing group 44. The protective box 6 is equipped with an explosion-proof protective layer inside, and the moving wheels 1 and the turntable 2 can control the smooth movement of the entire equipment.

[0033] The initial sorting group 43 includes a passive spring 31, a baffle 32, an active spring 33, an adjusting baffle 34, a storage box 35, a dual-sensor detector 36, a screen 37, a vibrator 38, a screen outlet 39, an output port 310, an inclined plate 311, and a housing 312. The passive spring 31 and the active spring 33 are installed between the baffle 32 and the housing 312. The vibrator 38 is controlled to be connected to the active spring 33. The adjusting baffle 34 is connected between the inclined plate 311 and the output port 310 and can... When flipped, the dual-sensor detector 36 is flush with the slope of the inclined plate 311. The baffle 32 is connected to the screen 37, and the screen outlet 39 is connected to the baffle 32. The storage box 35 is connected to the bottom of the housing 312. The vibrator 38 drives the screen 37 to vibrate by controlling the active spring 33, while the passive spring 31 helps to maintain the vibration stability of the screen 37, ensuring that the slag is fully screened on the screen 37. The cooperation between the dual-sensor detector 36 and the adjusting baffle 34 can accurately detect and intercept ammonium nitrate explosives.

[0034] The secondary sorting unit 41 includes a guide 61, a limiting plate 62, a rubber rolling roller 63, a conveyor chain 64, a motor 65, a partition 66, a ventilation grid 67, a secondary storage box 68, an elastic baffle 69, and a fan unit 610. The guide 61 is connected to the bottom of the limiting plate 62. The rubber rolling roller 63 is located between the conveyor chain 64 and the limiting plate 62. The motor 65 is connected to the conveyor chain 64. The ventilation grid 67 and the partition 66 are integrated. The secondary storage box 68 is connected to the inside of the limiting plate 62. The elastic baffle 69 is installed above the guide 61. The fan unit 610 is installed at the bottom of the partition 66. The rubber rolling roller 63 can crush hard and brittle slag, while the explosives, which have good toughness, are not affected. The airflow generated by the fan unit 610 is blown out horizontally through the ventilation grid 67, which can separate the explosives in the slag. The separated explosives fall into the secondary storage box 68.

[0035] The main crushing unit 44 includes a control unit 21, a guide plate 22, a uniform feeding chain 23, a main crushing roller 24, and a small motor 25. The control unit 21 controls and connects to the uniform feeding chain 23, the guide plate 22 is connected to the control unit 21, and the small motor 25 controls and connects to the main crushing roller 24. The guide plate 22 can accurately guide the slag after secondary sorting onto the uniform feeding chain 23. By adjusting the conveying speed of the uniform feeding chain 23, it is ensured that the slag enters the main crushing roller 24 evenly to avoid congestion. The small motor 25 provides stable power to the main crushing roller 24 to achieve precise control of the slag particle size.

[0036] The screen outlet 39 is connected to the external interface 5. The screen 37 is inclined at a 45-degree angle and can vibrate synchronously with the passive spring 31 and the active spring 33. Two inclined plates 311 are provided to extend the movement distance of the slag and facilitate detection by the dual-sensor detector 36. The screen outlet 39 and the external interface 5 are elastically connected to adapt to vibration. When the dual-sensor detector 36 detects the presence of explosives, it will open when it approaches the adjusting baffle 34, allowing the explosives to slide into the storage box 35.

[0037] The rubber crushing roller 63 is a crushing roller with a rubber ring, which can crush slag without crushing explosives. The partition 66 and the ventilation grid 67 work together to guide the air to blow horizontally. The elastic baffle 69 is pressed by the weight of the slag. The rubber crushing roller 63 has good buffering performance while ensuring crushing effect, which can effectively prevent crushing and detonation of explosives and other dangerous materials that may be present in the slag. Since the explosive is much lighter than the slag, the elastic baffle 69 cannot trigger the pressing mechanism, thus ensuring the separation effect of explosives and slag.

[0038] The specific usage and function of this embodiment are as follows:

[0039] In this invention, slag is fed into the inlet 42 of the processing equipment 4 via a conveying device. The slag then falls into the screen 37, where a vibrator 38 drives the active spring 33 and the passive spring 31 to vibrate in tandem, achieving vibratory screening of the slag. During screening, larger slag particles move to the screen outlet 39 due to the inclined slope of the screen 37, are discharged through the external interface 5, and returned for reprocessing. Slag particles that meet the size requirements pass through the screen 37 and move downwards along the slope of the inclined plate 311. As the slag moves on the inclined plate 311, a dual-sensor detector 36 detects the material in real time. When explosives are detected in the material, the adjusting baffle 34 is tilted upwards in a controlled manner, guiding the material mixed with explosives toward the collection box 35. After the explosives have completely entered the collection box 35, the adjusting baffle 34 is reset, and the remaining slag continues to move along the slope of the inclined plate 311. The slag is conveyed to the output port 310 and falls into the conveyor chain 64. The slag is then conveyed to the rubber roller 63 via the conveyor chain 64. The rubber roller 63 uses its elastic crushing action to crush the hard and brittle slag into fine particles, while the tough explosive is not affected by the crushing action. The crushed material is then conveyed to the partition plate 66. At this time, the airflow generated by the blower unit 610 blows out horizontally through the limiting port formed by the partition plate 66 and the ventilation grid 67. Because the explosive is much lighter than the slag, it is blown away from the partition plate 66 and enters the secondary collection box 68 under the blowing action of the horizontal airflow to achieve separation. The heavier slag overcomes the airflow action, moves down the slope of the partition plate 66 and pushes the elastic baffle 69, and then falls into the guide plate 22 through the guide port 61. The guide plate 22 then conveys the slag to the uniform conveyor chain 23, and finally conveys it to the main crushing roller 24 for deep crushing via the uniform conveyor chain 23.

[0040] Example 2: As shown in the attached document Figure 8 As shown:

[0041] The passivation device 45 includes a connecting chain 51, a control box 52, an atomizing spray group 53, a limiting block 54, a control motor 55, a side baffle 56, an insensitizer storage tank 57, and a passivation box 58. The connecting chain 51 is connected to the control motor 55. The insensitizer storage tank 57 is connected to the atomizing spray group 53 through the control box 52. The passivation box 58 is fixed to the surface of the side baffle 56. The limiting block 54 is fixedly installed between the two side baffles 56. The control box 52 can accurately control the amount of insensitizer delivered in the insensitizer storage tank 57 and the spraying pressure of the atomizing spray group 53. The passivation box 58 adopts a semi-sealed structure design, which can reduce the volatilization of the passivator, improve the contact efficiency between the passivator and the slag, and enhance the passivation effect.

[0042] The atomizing spray group 53 is located above the connecting chain 51 and sprays the slag. There are five atomizing spray groups 53, which are evenly distributed in a horizontal direction. The limiting block 54 guides and limits the conveying of the slag. The connecting chain 51 outputs the slag through the outlet 3. The passivation box 58 is equipped with a baffle to prevent the slag from accumulating. The connecting chain 51 outputs the slag through the outlet 3 to the external output channel.

[0043] The specific usage and function of this embodiment are as follows:

[0044] In this invention, the slag crushed by the main crushing roller 24 is guided by the limiting block 54 and falls into the connecting chain 51 for stable conveying. During the conveying process, the control box 52 precisely adjusts the discharge rate of the desensitizing agent storage tank 57 and the spraying parameters of the atomizing spray group 53 according to the amount of slag conveyed, so that the atomized desensitizing agent is evenly coated on the surface of the slag. The baffles arranged inside the passivation box 58 can divert and evenly distribute the slag, effectively avoiding the problem of uneven spraying of the desensitizing agent caused by the accumulation of slag in the box. After the passivation treatment, the slag is finally output through the outlet channel connected to the outlet 3, thereby realizing the fine passivation treatment of the slag.

[0045] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A mobile slag crushing, screening and heavy metal passivation integrated device, which structure comprises a mobile wheel (1), a rotating disc (2), an inlet port (3), a processing device (4), an external interface (5), a protective box (6), the mobile wheel (1) is connected with the rotating disc (2), the rotating disc (2) is installed at the bottom of the protective box (6), the external interface (5) is connected with the processing device (4) through the protective box (6), and the inlet port (3) and the protective box (6) are an integrated structure, characterized in that: the processing device (4) comprises a secondary sorting group (41), an inlet port (42), a primary sorting group (43), a main crushing group (44) and a passivation device (45), the inlet port (42) is fixed to the top of the primary sorting group (43), the primary sorting group (43) is located obliquely above the secondary sorting group (41), the secondary sorting group (41) is located on the side of the main crushing group (44), and the passivation device (45) is fixed to the bottom of the main crushing group (44); the primary sorting group (43) comprises a passive spring (31), a baffle (32), an active spring (33), an adjusting baffle (34), a storage box (35), a double-sensing detector (36), a screen mesh (37), a vibrator (38), a screen outlet (39), an output port (310), an inclined plate (311) and a shell (312), the passive spring (31) and the active spring (33) are installed between the baffle (32) and the shell (312), the vibrator (38) is in control connection with the active spring (33), the adjusting baffle (34) is connected between the inclined plate (311) and the output port (310) and can be turned over, the double-sensing detector (36) is flush with the slope of the inclined plate (311), the baffle (32) is connected with the screen mesh (37), the screen outlet (39) is connected with the baffle (32), and the storage box (35) is connected to the bottom of the shell (312); the secondary sorting group (41) comprises a guide port (61), a limiting plate (62), a rubber rolling roller (63), a conveying chain (64), a motor (65), a partition plate (66), a breathable grid (67), a secondary storage box (68), an elastic baffle (69) and a fan group (610), the guide port (61) is connected to the bottom of the limiting plate (62), the rubber rolling roller (63) is located between the conveying chain (64) and the limiting plate (62), the motor (65) is connected with the conveying chain (64), the breathable grid (67) and the partition plate (66) are an integrated structure, the secondary storage box (68) is connected with the inside of the limiting plate (62), the elastic baffle (69) is installed above the guide port (61), and the fan group (610) is installed at the bottom of the partition plate (66); the main crushing group (44) comprises a control machine (21), a guide plate (22), a uniform conveying chain (23), a main crushing roller (24) and a small motor (25), the control machine (21) controls the uniform conveying chain (23), the guide plate (22) is connected with the control machine (21), and the small motor (25) controls the main crushing roller (24). The screen outlet (39) is connected with the outer interface (5), the screen (37) is inclined at an angle of 45 degrees and can vibrate synchronously with the passive spring (31) and the active spring (33), the inclined plates (311) are provided in two, the moving distance of the slag is prolonged, and the double-sensing detector (36) is convenient to detect; The rubber crushing roller (63) is a crushing roller provided with a rubber ring, can crush the slag without crushing the explosive, the baffle (66) and the air permeable grid (67) cooperate to guide the wind to blow horizontally, and the elastic baffle (69) is pressed by the weight of the slag.

2. The mobile slag crushing, screening and heavy metal passivation integrated plant as claimed in claim 1, wherein: The passivation device (45) comprises a connecting chain (51), a control box (52), an atomizing spray group (53), a limiting block (54), a control motor (55), side baffles (56), a desensitizer storage tank (57) and a passivation box (58), the connecting chain (51) is connected with the control motor (55), the desensitizer storage tank (57) is connected with the atomizing spray group (53) through the control box (52), the passivation box (58) is fixed on the surface of the side baffle (56), and the limiting block (54) is fixedly installed between the two side baffles (56).

3. The mobile slag crushing, screening and heavy metal passivation integrated plant as claimed in claim 2, wherein: The atomizing spray group (53) is located above the connecting chain (51) and sprays the slag, the atomizing spray group (53) is provided with five and is uniformly distributed in the horizontal direction, the limiting block (54) guides and limits the conveying of the slag, and the connecting chain (51) outputs the slag through the outlet channel connected with the outlet (3).

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