Processing equipment for comprehensive utilization of coal gangue resources

Abstract

Provided is a processing device for comprehensive utilization of coal gangue resources, wherein a crushing mechanism is provided on one side of the casing, a transmission mechanism for driving a screening mechanism below the crushing mechanism is provided on the crushing mechanism, a fine crushing mechanism is provided on the other side of the casing, a conveying device I is provided in the casing to transport the material crushed by the crushing mechanism to the fine crushing mechanism, a conveying device II is provided below the fine crushing mechanism, a conveying device III is provided below the atomizing water spray box, and the material after adding water in the atomizing water spray box falls on the conveying device III, a material guide trough is provided at the discharge port at the lower end of the casing, and the material transported out of the casing by the conveying device III is sent to the aging warehouse for stacking through the material guide trough. The present invention designs the processing equipment for coal gangue raw materials into a structure integrating coarse crushing, fine crushing, screening and transportation, which solves the problems of complex production process and high energy consumption and large investment of multiple processing equipment, has a high degree of integration, small footprint, low cost of processing equipment and high production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of coal gangue processing, and in particular relates to a processing device for comprehensive utilization of coal gangue resources. Background Art

[0002] Actively promote the production of new energy-saving and environmentally friendly green wall materials using industrial solid waste raw materials to achieve the purpose of protecting farmland to the maximum extent and saving clay. Coal gangue is solid waste discharged during coal mining and coal washing. It is a black-gray rock with a lower carbon content and harder than coal that accompanies coal seams during the coal formation process. It includes excavation gangue during tunnel excavation, gangue mined from the roof, floor and interlayer during mining, and washed gangue picked out during coal washing. Its main components are Al2O3 and SiO2. It also contains varying amounts of Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and trace rare elements (gallium, vanadium, titanium, cobalt). It is a mixture of carbonaceous, muddy and sandy shale with a low calorific value. my country has accumulated a large amount of coal gangue over the years, and the amount continues to grow at 100Mt per year. It not only occupies land, but also causes air pollution or fire after spontaneous combustion. Coal gangue resources are mainly used to produce gangue cement, lightweight aggregates for concrete, refractory bricks and other building materials. In addition, they can also be used to recycle coal, mix coal and gangue to generate electricity, produce chemical products such as crystalline aluminum chloride and water glass, and extract precious rare metals. It can also be used as fertilizer. However, due to the high investment cost, complex process for extracting effective ingredients, and imperfect technology, a large amount of coal gangue cannot be fully utilized, causing environmental pollution. Coal gangue replaces clay as an ideal raw material for brick making, which can reduce the digging of good fields. When burning bricks, the combustible components of coal gangue itself can be used to save coal. Therefore, it provides a good raw material for brick making for the production of new energy-saving and environmentally friendly green wall materials. With the gradual utilization of coal gangue waste resources, the traditional raw material processing technology is usually crushing-screening-adding water-aging and stacking. Before aging, sufficient water must be added. The raw materials are stirred evenly and then enter the aging warehouse. The aging time is not less than 72 hours to eliminate the internal stress of the raw material particles, make the raw material properties consistent, and make the surface of the extruded blank smooth and not cracked. The traditional raw material processing procedures are cumbersome, require multiple processing equipment, high energy consumption, large equipment investment, and require a large space, which greatly increases the processing cost of coal gangue. Therefore, it is necessary to improve the above problems. Summary of the invention

[0003] The technical problem solved by the present invention is: to provide a processing equipment for the comprehensive utilization of coal gangue resources, and to design the processing equipment for coal gangue raw materials into an integrated structure integrating coarse crushing, fine crushing, screening and transportation, thereby solving the problems of complex production process and high energy consumption and large investment of multiple processing equipment. It has a high degree of integration and a small footprint, which greatly reduces the cost of processing equipment and is conducive to improving production efficiency and intelligent automatic control.

[0004] The technical solution adopted by the present invention is as follows: a processing equipment for comprehensive utilization of coal gangue resources, comprising a casing, a crushing mechanism is provided on one side of the casing, a transmission mechanism for driving a screening mechanism below the crushing mechanism is provided on the crushing mechanism, an atomizing water spray box is fixed in the casing and the lower end of the screening mechanism is located at the upper port of the atomizing water spray box, a fine crushing mechanism is provided on the other side of the casing, and both the fine crushing mechanism and the crushing mechanism are driven by a power drive device provided in the casing, a conveying device I is provided in the casing for conveying materials crushed by the crushing mechanism to the fine crushing mechanism, a conveying device II is provided below the fine crushing mechanism for conveying materials crushed by the fine crushing mechanism to the screening mechanism, a conveying device III is provided below the atomizing water spray box and the materials after water is added to the atomizing water spray box fall on the conveying device III, a material guide trough corresponding to the position of the discharge end of the conveying device III is provided at the discharge port at the lower end of the casing, and the materials transported out of the casing by the conveying device III are sent to the aging warehouse for stacking through the material guide trough.

[0005] Among them, the crushing mechanism is a jaw crusher, the fine crushing mechanism is a high-fine crushing roller machine, the screening mechanism is a vibrating screen composed of a box with upper and lower openings and a screen installed in the box, and the transmission mechanism includes a connecting wheel, a connecting wheel eccentrically arranged on a flywheel in the jaw crusher is rotatably connected to the flywheel, the connecting wheel is rotatably connected to one end of a connecting rod, the other end of the connecting rod is hinged to one end of an intermediate rod, the other end of the intermediate rod is hinged to one end of a rotating rod rotatably installed in the middle of the casing, the other end of the rotating rod is hinged to the upper end of connecting rod I, and the other end of connecting rod I is connected to the middle of the sliding rod, roller brackets are fixed on both side walls of the casing, and the sliding rod is adapted to the roller wheel grooves on the corresponding side roller brackets, the two ends of the sliding rod are fixedly connected to the vibrating screen through connecting pieces, and the vibrating screen is driven to reciprocate through the flywheel of the jaw crusher.

[0006] Furthermore, the conveying equipment I is a tubular screw elevator, and the jaw crusher is provided with a storage hopper for collecting materials falling from the lower end discharge port of the jaw crusher. The lower end of the spiral blade shaft in the tubular screw elevator extends into the storage hopper to lift the material in the storage hopper to the high-fine crushing double-roller machine.

[0007] Furthermore, the power drive device includes a drive motor, which is installed on the bottom surface of the casing. A transmission main shaft is rotatably installed in the casing. The driving pulley on the output shaft of the drive motor is connected to the intermediate pulley on the transmission main shaft through a belt, and the driven pulley on the transmission main shaft is respectively connected to the pulleys on the crushing mechanism and the fine crushing mechanism through belts.

[0008] Furthermore, the conveying equipment II and the conveying equipment III are belt conveyor I and belt conveyor II respectively, the belt conveyor I is installed on the inner wall of the casing, one end of the belt conveyor I is located above the feed port at the upper end of the screening mechanism, and the other end of the belt conveyor I is located below the fine crushing mechanism, the belt conveyor II is located below the atomizing water spray box and installed on the inner bottom surface of the casing, and the discharge end of the belt conveyor II is located at the discharge port at the lower end of the casing.

[0009] Furthermore, the four corner bolts at the bottom of the casing are fixedly connected with supporting legs, and the bottom of the casing is provided with moving wheels for facilitating the movement of the whole machine.

[0010] The advantages of the present invention compared with the prior art are:

[0011] 1. This technical solution designs the processing equipment of coal gangue raw materials into a structure that integrates coarse crushing, fine crushing, screening and transportation, which solves the problems of complex production process and high energy consumption and large investment of multiple processing equipment, shortens the raw material processing process, and reduces the cost of processing equipment;

[0012] 2. This technical solution integrates the jaw crusher, the high-fine crushing roller machine and the vibrating screen connected to the jaw crusher through a transmission mechanism (connecting rod mechanism) into the casing, which greatly reduces the footprint of the equipment. The power drive device in the casing drives the jaw crusher and the high-fine crushing roller machine to work at the same time, and drives the vibrating screen with the help of the inertia force of the flywheel in the jaw crusher, which optimizes the setting of the power drive structure, reduces the power consumption and the cost investment of the power drive part, and simplifies the power drive structure.

[0013] 3. The transmission mechanism in this technical solution adopts a connecting rod mechanism formed by a connecting rod, an intermediate rod, a rotating rod and a connecting rod I, which converts the rotary motion into the reciprocating linear motion of the vibrating screen to ensure the normal operation of the vibrating screen. The water nozzle in the atomizing water spray box automatically sprays the material after the vibrating screen in a quantitative manner, eliminating the raw material mixing process and the investment in mixing equipment;

[0014] 4. This technical solution realizes the automatic transmission of materials in various parts by arranging a tubular spiral elevator in the casing to transport the materials crushed by the jaw crusher to the high-fine crushing roller machine, a belt conveyor I to transport the materials crushed by the fine crushing roller machine to the vibrating screen, and a belt conveyor II to transport the materials after atomization and water addition out of the casing, so that the connection of various parts is reasonable and compact, and a series of processing procedures for coal gangue are integrated in the casing, which reduces labor costs and environmental pollution;

[0015] 5. This technical solution has a reasonable structural design, a novel power drive structure design, a high degree of integration, and movable wheels are provided at the bottom of the casing, which can be moved according to the raw material stacking situation. There is no need to build a factory building, which is conducive to improving production efficiency and intelligent automatic control, and has a high value of promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the matching structure of the slide bar and the roller of the present invention. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-2 An embodiment of the present invention is described to clearly and completely describe the technical solution. Obviously, the described embodiment is only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present invention.

[0020] The processing equipment for comprehensive utilization of coal gangue resources comprises a casing 1, wherein a crushing mechanism is arranged on one side of the casing 1, and a transmission mechanism for driving a screening mechanism below the crushing mechanism is arranged on the crushing mechanism, an atomizing water spray box 4 is fixed in the casing 1, and the lower end of the screening mechanism is located at the upper end of the atomizing water spray box 4, a fine crushing mechanism is arranged on the other side of the casing 1, and both the fine crushing mechanism and the crushing mechanism are driven by a power drive device arranged in the casing 1, a conveying device I for conveying the material crushed by the crushing mechanism to the fine crushing mechanism is arranged in the casing 1, a conveying device II for conveying the material crushed by the fine crushing mechanism to the screening mechanism is arranged below the fine crushing mechanism, a conveying device III is arranged below the atomizing water spray box 4, and the material after water is added in the atomizing water spray box 4 falls on the conveying device III, a material guide trough 8 corresponding to the position of the discharge end of the conveying device III is arranged at the discharge port at the lower end of the casing 1, and the material transported out of the casing by the conveying device III is sent to the aging warehouse for stacking through the material guide trough 8.

[0021] The blocky coal gangue is crushed by a jaw crusher, and the crushed coal gangue raw materials are sent to the roller high-fine crushing equipment through a conveying device, and then the finely crushed raw materials are sent to the vibrating screen for vibration screening and separation, and the residual slag is sent to the roller high-fine crushing through a tubular spiral conveyor for secondary recovery and crushing of the residual slag. Left and right quantitative water spray devices are set under the vibrating screen to ensure that the raw materials get enough moisture during the processing, and then sent to the stacking and aging warehouse through the conveying device for standby.

[0022] Specifically, the crushing mechanism is a jaw crusher 2, the fine crushing mechanism is a high-fine crushing roller machine 5, the screening mechanism is a vibrating screen 3 composed of a box body with upper and lower openings and a screen installed in the box body, and the transmission mechanism includes a connecting wheel 9, the connecting wheel 9 eccentrically arranged on a flywheel 10 in the jaw crusher 2 is rotatably connected to the flywheel 10, the connecting wheel 9 is rotatably connected to one end of a connecting rod 11, the other end of the connecting rod 11 is hinged to one end of an intermediate rod 12, and the other end of the intermediate rod 12 is hinged to one end of a rotating rod 13 rotatably installed in the middle of the casing 1. The other end of the rotating rod 13 is hinged to the upper end of the connecting rod Ⅰ14, and the other end of the connecting rod Ⅰ14 is connected to the middle of the sliding rod 15. Roller brackets 16 are fixed on the two side walls of the casing 1, and the sliding rod 15 is adapted to the wheel groove of the roller 24 on the corresponding side roller bracket 16. The two ends of the sliding rod 15 are fixedly connected to the vibrating screen 3 through connecting pieces 17, and the vibrating screen 3 is driven to reciprocate along the horizontal tangent direction of the upper end of the roller 24 through the flywheel 10 of the jaw crusher. The reciprocating structure stability of the vibrating screen 3 is good, which is beneficial to improving the service life of the equipment.

[0023] Specifically, the conveying equipment I is a tubular screw elevator 18, and the jaw crusher 2 is provided with a storage hopper 19 for collecting materials falling from the lower end discharge port of the jaw crusher 2. The lower end of the spiral blade shaft in the tubular screw elevator 18 extends into the storage hopper 19 to lift the material in the storage hopper 19 to the high-fine crushing roller machine 5.

[0024] Specifically, the power drive device includes a drive motor 20, which is installed on the inner bottom surface of the casing 1. A transmission main shaft 21 is rotatably installed in the casing 1. The driving pulley on the output shaft of the drive motor 20 is connected to the intermediate pulley on the transmission main shaft 21 through a belt, and the driven pulley on the transmission main shaft 21 is respectively connected to the pulleys on the jaw crusher 2 and the high-fine crushing roller machine 5 through belts.

[0025] Specifically, the conveying equipment II and the conveying equipment III are belt conveyor I6 and belt conveyor II7 respectively. The belt conveyor I6 is installed on the inner wall of the casing 1, one end of the belt conveyor I6 is located above the feed port at the upper end of the screening mechanism, and the other end of the belt conveyor I6 is located below the fine crushing mechanism. The belt conveyor II7 is located below the atomizing water spray box 4 and installed on the inner bottom surface of the casing 1, and the discharge end of the belt conveyor II7 is located at the discharge port at the lower end of the casing 1; specifically, the four corner bolts at the bottom of the casing 1 are fixedly connected with a supporting frame 22, and the bottom of the casing 1 is provided with a moving wheel 23 for facilitating the movement of the entire machine. When the equipment needs to be moved, the supporting frame 22 can be removed.

[0026] This structure adopts a jaw crusher 2 to crush the massive coal gangue, and the crushed coal gangue raw materials are lifted and transported to the fine crushing roller machine 5 by a tubular spiral elevator 18. The materials crushed by the fine crushing roller machine 5 are transported to the vibrating screen 3 through a belt conveyor Ⅰ6 for screening and separation after vibration. The residue screened out by the vibrating screen 3 is sent to the fine crushing roller machine 5 through another conveying equipment arranged in the machine casing for secondary recovery and crushing of the residue. An atomizing water spraying box 4 that can quantitatively spray water by atomizing is arranged under the vibrating screen 3, so that the raw materials that fall into the atomizing water spraying box 4 after screening by the vibrating screen 3 can obtain sufficient moisture during the processing, and then the raw materials with water are sent to the stacking and aging warehouse for standby use through the belt conveyor Ⅱ7.

[0027] The technical solution designs the processing equipment of coal gangue raw materials into a structure that integrates coarse crushing, fine crushing, screening and transportation, which solves the problems of complex production process and high energy consumption and large investment of multiple processing equipment, shortens the raw material processing process, and reduces the cost of processing equipment. The jaw crusher 2 and the high-fine crushing roller machine 5 and the vibrating screen 3 connected to the jaw crusher 2 through a transmission mechanism (connecting rod mechanism) are integrated and installed in the casing 1, which greatly reduces the footprint of the equipment. The jaw crusher 2 and the high-fine crushing roller machine 5 are driven by the power drive device arranged in the casing 1 at the same time, and the vibrating screen 3 is driven by the operating inertia force of the flywheel 10 in the jaw crusher 2, which optimizes the setting of the power drive structure, reduces the power consumption and the cost investment of the power drive part, and simplifies the power drive structure. The transmission mechanism adopts a connecting rod mechanism formed by a connecting rod 11, an intermediate rod 12, a rotating rod 13 and a connecting rod I 14 to convert the rotary motion into vibration The reciprocating linear motion of the screen 3 ensures the normal operation of the vibrating screen 3. The water adding nozzle in the atomizing water spray box 4 automatically and quantitatively sprays the materials screened by the vibrating screen 3, which saves the raw material mixing process and the investment in mixing equipment. By arranging a tubular spiral elevator 18 in the casing 1 to transport the materials crushed by the jaw crusher 2 to the high-fine crushing roller machine 5, a belt conveyor Ⅰ6 to transport the materials crushed by the fine crushing roller machine 5 to the vibrating screen 3, and a belt conveyor Ⅱ7 to transport the materials after atomization and water addition out of the casing 1, the automatic transmission of materials in various parts is realized, and the connection of various parts is reasonable and compact. A series of processing procedures for coal gangue are integrated in the casing, which reduces labor costs and environmental pollution. The structural design is reasonable, the power drive structure design is novel, and the degree of integration is high. A moving wheel 23 is provided at the bottom of the casing 1, which can be moved according to the raw material stacking situation. There is no need to build a factory building, which is conducive to improving production efficiency and intelligent automatic control, and has a high value of promotion and application.

[0028] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A processing device for comprehensive utilization of coal gangue resources, characterized in that: The invention comprises a casing (1), wherein a crushing mechanism is provided on one side of the casing (1), wherein a transmission mechanism for driving a screening mechanism below the crushing mechanism is provided on the crushing mechanism, wherein an atomizing water spray box (4) is fixed inside the casing (1) and the lower end of the screening mechanism is located at the upper end of the atomizing water spray box (4), wherein a fine crushing mechanism is provided on the other side of the casing (1), and both the fine crushing mechanism and the crushing mechanism are driven by a power drive device provided in the casing (1), wherein a conveying device I for conveying materials crushed by the crushing mechanism to the fine crushing mechanism is provided in the casing (1), wherein a conveying device II for conveying materials crushed by the fine crushing mechanism to the screening mechanism is provided below the fine crushing mechanism, wherein a conveying device III is provided below the atomizing water spray box (4) and materials added with water in the atomizing water spray box (4) fall onto the conveying device III, wherein a material guide trough (8) corresponding to the position of the material discharge end of the conveying device III is provided at the material discharge port at the lower end of the casing (1), and the materials conveyed out of the casing by the conveying device III are conveyed into an aging warehouse for stacking through the material guide trough (8); The crushing mechanism is a jaw crusher (2), the fine crushing mechanism is a high-fine crushing roller machine (5), the screening mechanism is a vibrating screen (3) composed of a box body with upper and lower openings and a screen installed in the box body, and the transmission mechanism includes a connecting wheel (9), the connecting wheel (9) eccentrically arranged on a flywheel (10) in the jaw crusher (2) is rotatably connected to the flywheel (10), the connecting wheel (9) is rotatably connected to one end of a connecting rod (11), the other end of the connecting rod (11) is hinged to one end of an intermediate rod (12), and the other end of the intermediate rod (12) is rotatably connected to a middle rod (12). One end of a rotating rod (13) installed in the casing (1) is hinged, and the other end of the rotating rod (13) is hinged to the upper end of the connecting rod I (14), and the other end of the connecting rod I (14) is connected to the middle of the sliding rod (15). Roller brackets (16) are fixed on the two side walls of the casing (1), and the sliding rod (15) is adapted to the wheel groove of the roller (24) on the corresponding side roller bracket (16). The two ends of the sliding rod (15) are fixedly connected to the vibrating screen (3) through a connecting piece (17), and the vibrating screen (3) is driven to reciprocate through the flywheel (10) of the jaw crusher; The conveying device II and the conveying device III are respectively a belt conveyor I (6) and a belt conveyor II (7). The belt conveyor I (6) is installed on the inner wall of the casing (1). One end of the belt conveyor I (6) is located above the feed port at the upper end of the screening mechanism, while the other end of the belt conveyor I (6) is located below the fine crushing mechanism. The belt conveyor II (7) is located below the atomizing water spray box (4) and installed on the inner bottom surface of the casing (1), and the discharge end of the belt conveyor II (7) is located at the discharge port at the lower end of the casing (1).

2. The processing equipment for comprehensive utilization of coal gangue resources according to claim 1, characterized in that: The conveying device I is a tubular screw elevator (18), and the jaw crusher (2) is provided with a storage hopper (19) for collecting materials falling from the lower discharge port of the jaw crusher (2). The lower end of the spiral blade shaft in the tubular screw elevator (18) extends into the storage hopper (19), and the material in the storage hopper (19) is lifted to the high-fine crushing roller machine (5).

3. The processing equipment for comprehensive utilization of coal gangue resources according to claim 1, characterized in that: The power drive device comprises a drive motor (20), the drive motor (20) being mounted on the inner bottom surface of a casing (1), a transmission main shaft (21) being rotatably mounted in the casing (1), a driving pulley on the output shaft of the drive motor (20) being connected to an intermediate pulley on the transmission main shaft (21) via a belt, and a driven pulley on the transmission main shaft (21) being respectively connected to pulleys on a crushing mechanism and a fine crushing mechanism via a belt.

4. The processing equipment for comprehensive utilization of coal gangue resources according to any one of claims 1 to 3, characterized in that: The four corners of the bottom of the casing (1) are fixedly connected with supporting legs (22) by bolts, and the bottom of the casing (1) is provided with moving wheels (23) for facilitating the movement of the entire machine.

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