Coal slime and coal gangue spreading and adhering combustion technology and feeding method

Abstract

The invention discloses a coal slime and coal gangue scattering, adhering and combusting technology and a feeding method, relates to the technical field of material conveying, and aims to solve the technical problem that an existing feeding device is uneven in feeding during material scattering. A feeding bin is borne by a platform on a support, coal slime and coal gangue are conveyed to the feeding bin through a coal inlet groove, and the coal slime and the coal gangue are conveyed to the feeding bin through a coal outlet groove; an annular spraying mechanism is arranged at the top end of the feeding bin, a rolling attachment mechanism is arranged in the feeding bin, a driving assembly of the rolling attachment mechanism drives a hollow ball frame to rotate, and an adjusting assembly and a synchronous rotating frame change the rotating angle of a lifting assembly rotationally inserted into the inner wall of the hollow ball frame. According to the coal slime conveying device and the coal gangue conveying method, accurate adaptation and efficient attachment of the coal slime and the coal gangues with different characteristics in the conveying process are achieved, the problems that a traditional conveying mode is low in attachment rate and poor in adaptability are solved, and the coal slime conveying device is suitable for high-viscosity coal slime and high-density coal gangues or low-viscosity coal slime and low-density coal gangues. And the stability of material cooperative utilization and the resource utilization rate are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of material conveying technology, and more specifically, to a coal slime and gangue spreading, adhering, and burning technology and feeding method. Background Technology

[0002] In the field of energy utilization, coal slime, as a high-calorific-value powdery coal resource, has high energy utilization value. However, due to its powdery and highly viscous nature, it is prone to blockage and clumping during independent transportation and combustion, limiting its efficient utilization. Coal gangue, as a by-product generated during coal mining, is a low-calorific-value granular solid waste, but it has a certain granular structure. If it can be properly combined with coal slime, it can not only achieve stable transportation and combustion of coal slime, but also provide an effective way for the resource utilization of coal gangue.

[0003] Currently, for the co-utilization of coal slime and coal gangue, existing technologies mostly adopt the spiral mixing and feeding method, that is, the coal slime and coal gangue are simply mixed by a spiral feeder and then directly fed into the boiler furnace for combustion. However, this traditional method has many insurmountable drawbacks: First, after mixing, the coal slime and gangue are not adequately treated for adhesion. Upon entering the furnace, due to the stickiness of the coal slime and the differences in the physical properties of the two materials, they are prone to coalescence and coking at high temperatures, clogging the furnace slag discharge pipe, severely affecting the normal operation of the boiler, increasing equipment maintenance costs and safety hazards. Second, existing equipment has low coal slime adhesion efficiency; a large amount of coal slime fails to fully adhere to the surface of the gangue, not only wasting coal slime resources but also failing to fully utilize its high calorific value, affecting combustion efficiency. Furthermore, the moisture content and viscosity of the coal slime, as well as the particle size and surface morphology of the gangue, vary significantly, making it impossible to adapt to different properties of coal slime and gangue. This results in poor finished product quality stability, further affecting the stability and reliability of the subsequent combustion process. Therefore, we propose a coal slime and gangue spreading and adhesion combustion technology and feeding method. Summary of the Invention

[0004] The purpose of this invention is to provide a coal slime and gangue spreading, attaching, and burning technology and feeding method to solve the technical problem of uneven feeding when spreading materials in existing feeding devices.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a coal slime and gangue spreading, attaching, and burning technology and feeding method, including a support frame, a platform on the support frame, a feeding bin on the platform, a coal chute at the bottom of the platform, the coal chute being connected to the discharge end of the feeding bin, a coal inlet trough at the top of the feeding bin, a ring spraying mechanism at the top of the feeding bin, and a rolling attachment mechanism inside the feeding bin; The rolling attachment mechanism includes a drive assembly, a hollow ball frame, an adjustment assembly, a synchronous rotating frame, a lifting assembly, and an aperture valve. The drive assembly is mounted on the platform and its output end is rotatably inserted into the feed hopper. The hollow ball frame is fixedly connected to the output end of the drive assembly. The adjustment assembly is located on the outer wall of the hollow ball frame. The synchronous rotating frame is rotatably sleeved on the outer wall of the hollow ball frame. Several lifting assemblies are rotatably inserted into the inner wall of the hollow ball frame. The aperture valve is located at the feed end and the discharge end of the hollow ball frame. The adjustment component and the synchronous rotating frame change the rotation angle of the lifting component, resulting in a high lifting state or a low lifting state. In the high lifting state, it is suitable for high-viscosity coal slime and high-density coal gangue, while in the low lifting state, it is suitable for low-viscosity and low-density coal gangue.

[0006] Preferably, the drive assembly includes a base and a geared motor. The base is disposed on the platform, the geared motor is disposed at the top of the base, and the output end of the geared motor is fixedly connected to the hollow ball frame.

[0007] Preferably, the hollow ball frame has an inlet hole at the top and an outlet hole at the bottom, and the aperture valve is located on the inlet hole and the outlet hole.

[0008] Preferably, the hollow ball frame is further provided with a rotating hole, and the material lifting assembly is rotatably inserted into the rotating hole.

[0009] Preferably, the adjustment assembly includes a rotating shaft and a gear. The rotating shaft is rotatably inserted into the outer wall of the hollow ball frame, and the gear is fixedly sleeved on the rotating shaft. The gear is driven to rotate by a motor.

[0010] Preferably, the synchronous rotating frame is spherical in shape and includes ring rods, arc connecting rods, limiting rods, and toothed grooves. A plurality of ring rods are rotatably sleeved on the outer wall of the hollow spherical frame. The arc connecting rods are fixedly connected to a plurality of ring rods. A plurality of limiting rods are fixedly disposed on the outer wall of the ring rods. The toothed groove is formed on one of the ring rods, and the gear is meshed with the toothed groove.

[0011] Preferably, the lifting assembly includes a rotating rod, a lifting plate, an adjusting block, and a sliding hole. A plurality of the rotating rods are rotatably inserted into the rotating hole, the lifting plate is fixedly connected to one end of the rotating rod, the adjusting block is fixedly connected to the other end of the rotating rod, the sliding hole is opened on the adjusting block, and the limiting rod is slidably inserted into the sliding hole.

[0012] Preferably, the ring spraying mechanism includes an annular tube, a feed pipe, and nozzles. The annular tube is fixedly disposed at the top of the feeding bin, the feed pipe is disposed at the top of the annular tube, and the nozzles are arranged in a ring at equal intervals at the bottom of the annular tube. The nozzles are inserted inside the feeding bin. The feed pipe, the annular tube, and the nozzles are connected. The input end of the feed pipe is connected to an external powder supply mechanism.

[0013] Preferably, the bottom of the feed hopper is provided with a turbulence-disrupting mechanism, which includes a rotating shaft and turbulence-disrupting blades. The rotating shaft is rotatably mounted at the bottom of the feed hopper, and the turbulence-disrupting blades are arranged in a ring at equal intervals on the rotating shaft. The rotating shaft is driven by a motor.

[0014] Preferably, the present invention also provides a method comprising the following steps: S1, Equipment bearing and initial material conveying; Coal gangue enters the feed bin through the coal inlet chute, and the coal chute at the bottom of the platform is connected to the discharge end of the feed bin, providing a channel for the final output of materials; S2, Material Inlet and Flow Control; Coal gangue enters the hollow ball frame through the feed hole at the top, and the aperture valve at the feed hole regulates the amount of material entering. S3, Adjustment of lifting component angle and switching of status; S3.1 The rotating shaft of the motor-driven adjustment component rotates, which drives the gear to rotate synchronously. The gear meshes with the tooth groove of the ring rod on the synchronous rotating frame, and drives several ring rods to rotate synchronously through the arc connecting rod. The limiting rod on the outer wall of the ring rod slides in the sliding hole of the lifting component adjustment block, driving the rotating rod to rotate around the rotating hole. When the lifting plate rotates to a vertical state, it is suitable for low-viscosity coal slime and porous, fragile coal gangue. S3.2 The rotating shaft of the motor-driven adjustment component rotates, which drives the gear to rotate synchronously. The gear meshes with the tooth groove of the ring rod on the synchronous rotating frame, and drives several ring rods to rotate synchronously through the arc connecting rod. The limiting rod on the outer wall of the ring rod slides in the sliding hole of the lifting component adjustment block, driving the rotating rod to rotate around the rotating hole. When the lifting plate rotates to the horizontal state, it is suitable for high viscosity coal slime and smooth surface coal gangue with high density. S4, Rolling attachment mechanism drive and basic operation; The geared motor is started and its output end is directly and fixedly connected to the hollow ball frame. The output torque drives the hollow ball frame and coal gangue to rotate stably in the feeding bin. S5. Coal slime spreading and adhesion treatment; The external powder supply mechanism of the ring spraying mechanism conveys coal slurry powder to the ring pipe through the feed pipe. The ring pipe sprays the powder into the feed bin through the equally spaced nozzles in the ring, so that it can fully contact the coal gangue lifted by the lifting component during the falling process, and achieve uniform adhesion of coal slurry. S6, turbulence-enhanced adhesion; The motor at the bottom of the feed hopper drives the rotating shaft of the turbulence mechanism to rotate, which in turn drives the turbulence blades that are evenly distributed in a ring to rotate synchronously, lifting up the falling coal slime powder, preventing it from accumulating and achieving secondary adhesion. S7. Material discharge and flow control; The processed material is discharged through the discharge hole at the bottom of the hollow ball frame. The discharge valve at the discharge hole controls the discharge amount, and the material is finally transported through the coal chute.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a platform on a support structure to support a feeding bin. Coal slime and coal gangue are transported to the feeding bin via a coal feed trough. The top of the feeding bin is equipped with a ring spray mechanism, and the inside is equipped with a rolling attachment mechanism. The drive component of the rolling attachment mechanism drives the hollow ball frame to rotate. The adjustment component and the synchronous rotating frame change the rotation angle of the lifting component inserted into the inner wall of the hollow ball frame to form a high lifting state suitable for high viscosity coal slime and high density coal gangue, or a low lifting state suitable for low viscosity coal slime and low density coal gangue. This invention achieves precise matching and efficient attachment of coal slime and coal gangue with different characteristics during the conveying process, solving the problems of low attachment rate and poor adaptability of traditional conveying methods, and significantly improving the stability and resource utilization of material co-utilization.

[0016] 2. This invention also utilizes the spherical structure of the hollow ball frame, along with the layout of the inlet, outlet, and rotating holes, to provide a closed and smooth conveying channel for the material, while also providing stable support for the rotational installation of the lifting assembly. During rotation, it drives the material to form a cyclical tumbling trajectory. Combined with the flow control of the aperture valve, this effectively prevents material interruptions or blockages during conveying, ensuring the stability of continuous feeding.

[0017] 3. This invention also achieves overall linkage between the rotating shaft of the adjusting component and the ring rod of the gear-driven synchronous rotating frame through an arc connecting rod. Utilizing the precise transmission of the toothed groove and the limiting rod, a coordinated adjustment mechanism is formed with the lifting component. The lifting component connects the lifting plate and the adjusting block through a rotating rod, and achieves adaptive angle adjustment through the sliding fit of the sliding hole and the limiting rod. This structure breaks through the limitations of fixed operating conditions in traditional devices, dynamically switching the contact area and lifting height between the lifting plate and the material according to differences in coal slime viscosity and coal gangue density. It effectively grasps and throws high-viscosity coal slime, reduces excessive disturbance to low-viscosity materials, and significantly improves the device's adaptability to complex material characteristics, fundamentally solving the problems of uneven coal slime adhesion and easy agglomeration in traditional mixing processes.

[0018] 4. The motor-driven rotating shaft at the bottom of the feed hopper of this invention rotates, causing the equally spaced, annular turbulence blades to rotate synchronously. The rotating turbulence blades create continuous turbulence on the coal slime powder discharged from the rolling adhesion mechanism. On the one hand, the deposited coal slime powder is lifted up again, allowing it to come into secondary contact with the insufficiently adhered coal gangue, further improving the adhesion efficiency between coal slime and coal gangue. On the other hand, the stirring prevents the coal slime powder from accumulating and clumping at the bottom of the feed hopper, ensuring unobstructed material conveying channels. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection of the present invention installed on a circulating fluidized bed boiler.

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the feed bin in cross-section according to the present invention; Figure 4 This is a schematic diagram of the coal feed trough, ring spray mechanism and rolling adhesion mechanism of the present invention; Figure 5 This is a schematic diagram of the rolling attachment mechanism of the present invention; Figure 6 This is a schematic diagram of the hollow ball frame and aperture valve structure of the present invention; Figure 7 This is a schematic diagram of the adjustment component and synchronous rotating frame structure of the present invention; Figure 8 This is a schematic diagram of the adjustment component, synchronous rotating frame, and material lifting component of the present invention; Figure 9 This is a schematic diagram of the internal structure of the hollow ball frame of the present invention in cross-section; Figure 10 This is a schematic diagram of the material lifting assembly structure of the present invention; Figure 11 This is a schematic diagram of the tilting trajectory of the lifting plate of the present invention; Explanation of the labels in the diagram: 01. Furnace wall; 02. Rolling table; 03. Feed inlet; 04. Water spray nozzle; 05. Embedded pipe; 06. Cooling water inlet; 07. Compressed air inlet; 1. Support frame; 2. Platform; 3. Feed hopper; 4. Coal chute; 5. Coal feed chute; 6. Circular spraying mechanism; 7. Rolling attachment mechanism; 8. Turbulence mechanism; 701. Drive assembly; 702. Hollow ball frame; 703. Adjustment assembly; 704. Synchronous rotating frame; 705. Lifting assembly; 706. Aperture valve; 601. Annular pipe; 602. Feed pipe; 603. Nozzle; 801. Rotating shaft bracket; 802. Blower blades; 7011, Base; 7012, Gear Motor; 7021, Feed port; 7022, Discharge port; 7023, Rotary hole; 7031, Shaft; 7032, Gear; 7041, Ring rod; 7042, Arc connecting rod; 7043, Limiting rod; 7044, Tooth groove; 7051, Rotating rod; 7052, Lifting plate; 7053, Adjusting block; 7054, Sliding hole. Detailed Implementation

[0021] This invention is applied to circulating fluidized bed boilers. (Reference) Figure 1 The circulating fluidized bed boiler has a rolling platform 02 on its furnace wall 01, connecting the inside and outside of the boiler. A circular valve 706 at the discharge port 7022 controls the material discharge rate. After being discharged through the coal chute 4, the material falls onto the rolling platform 02 for further rolling and mixing before entering the boiler. In addition to being connected to the coal chute 4, the feeding end of the rolling platform 02 also has a feed inlet 03 for directly adding coal slurry when the feed is insufficient; it also has a water spray nozzle 04 to spray water onto the rolling platform 02 to prevent material from sticking to it. It also has embedded pipes 05 connecting the inside and outside of the boiler, i.e., the main heat output pipes or the main heat absorption pipes; a cooling water inlet 06 to provide cooling water to the furnace wall or heat-sensitive devices or components inside the furnace; and a compressed air inlet 07 to blow the material coming off the rolling platform into the furnace for easier combustion.

[0022] Example 1: As Figures 2 to 11 As shown, the coal slime and gangue spreading, attaching, and burning technology and feeding method of the present invention includes a support 1, a platform 2 on the support 1, a feeding bin 3 on the platform 2, a coal chute 4 at the bottom of the platform 2, the coal chute 4 being connected to the discharge end of the feeding bin 3, a coal inlet trough 5 at the top of the feeding bin 3, a ring spraying mechanism 6 at the top of the feeding bin 3, and a rolling attachment mechanism 7 inside the feeding bin 3. The rolling attachment mechanism 7 includes a drive assembly 701, a hollow ball frame 702, an adjustment assembly 703, a synchronous rotating frame 704, a lifting assembly 705, and an aperture valve 706. The drive assembly 701 is mounted on the platform 2 and its output end is rotatably inserted into the feeding bin 3. The hollow ball frame 702 is fixedly connected to the output end of the drive assembly 701. The adjustment assembly 703 is located on the outer wall of the hollow ball frame 702. The synchronous rotating frame 704 is rotatably sleeved on the outer wall of the hollow ball frame 702. Several lifting assemblies 705 are rotatably inserted into the inner wall of the hollow ball frame 702. The aperture valve 706 is located at the inlet and outlet ends of the hollow ball frame 702. Adjustment component 703 and synchronous rotating frame 704 change the rotation angle of lifting component 705, resulting in a high lifting state or a low lifting state. In the high lifting state, it is suitable for high viscosity coal slime and high density coal gangue, while in the low lifting state, it is suitable for low viscosity and low density coal gangue.

[0023] This invention uses a platform 2 on the support 1 to support a feeding bin 3. Coal slime and coal gangue enter the feeding bin 3 through a coal inlet 5. The coal chute 4 at the bottom of the platform 2 is connected to the discharge end of the feeding bin 3 to output materials. The top of the feeding bin 3 is equipped with a ring spraying mechanism 6, and the inside is equipped with a rolling attachment mechanism 7. The drive component 701 of the rolling attachment mechanism 7 drives the hollow ball frame 702 to rotate. The adjusting component 703 and the synchronous rotating frame 704 change the rotation angle of the lifting component 705, which is inserted into the inner wall of the hollow ball frame 702, to adapt to high-viscosity coal slime and high-density coal gangue. In the high-lift state or the low-lift state adapted to low-viscosity coal slime and low-density coal gangue, the circular valves 706 at the feed end and discharge end of the hollow ball frame 702 control the material flow. During the process of lifting and scattering materials by the lifting component 705, the ring spray mechanism 6 sprays the medium to achieve full adhesion of coal slime and coal gangue. Finally, the material is discharged through the coal chute 4. This invention achieves precise matching and efficient adhesion of coal slime and coal gangue with different characteristics, solves the problems of low adhesion rate and poor adaptability of traditional mixing methods, and significantly improves the stability and resource utilization of material synergistic utilization.

[0024] In an embodiment of the present invention, the drive assembly 701 includes a base 7011 and a geared motor 7012. The base 7011 is disposed on the platform 2, and the geared motor 7012 is disposed on the top of the base 7011. The output end of the geared motor 7012 is fixedly connected to the hollow ball frame 702.

[0025] In this invention, the base 7011 on the platform 2 provides stable support for the geared motor 7012, ensuring that it remains structurally stable during operation. When the device is started, the geared motor 7012 starts to run, and its output end is directly fixedly connected to the hollow ball frame 702. The output torque drives the hollow ball frame 702 to rotate stably in the feeding bin 3.

[0026] In an embodiment of the present invention, a material inlet hole 7021 is provided at the top of the hollow ball frame 702, and a material outlet hole 7022 is provided at the bottom of the hollow ball frame 702. An aperture valve 706 is provided on the material inlet hole 7021 and the material outlet hole 7022.

[0027] Furthermore, when the coal gangue is too small, a leak-proof net can be installed in the gaps of the inner wall of the hollow ball frame 702 to prevent the coal gangue from falling out.

[0028] In an embodiment of the present invention, a rotating hole 7023 is also provided on the hollow ball frame 702, and the material lifting assembly 705 is rotatably inserted into the rotating hole 7023.

[0029] In this invention, coal slime and coal gangue enter the feeding bin 3 through the coal inlet trough 5, and then enter the interior of the hollow ball frame 702 through the inlet hole 7021 at the top of the hollow ball frame 702. The aperture valve 706 at the inlet hole 7021 can adjust the amount of material entering. When the hollow ball frame 702 rotates under the drive component, the lifting component 705 inserted in the rotating hole 7023 moves synchronously with it to lift and scatter the internal material, which, together with the ring spray mechanism 6, achieves the adhesion of coal slime and coal gangue. The processed material is discharged through the outlet hole 7022 at the bottom of the hollow ball frame 702. The aperture valve 706 at the outlet hole 7022 controls the amount of material discharged, and finally the feeding is completed through the coal chute 4.

[0030] The aperture valve 706 in this invention is existing technology in the field and serves to open and close the feed and discharge ports, so it will not be described in detail here.

[0031] In an embodiment of the present invention, the adjustment component 703 includes a rotating shaft 7031 and a gear 7032. The rotating shaft 7031 is rotatably inserted into the outer wall of the hollow ball frame 702, and the gear 7032 is fixedly sleeved on the rotating shaft 7031. The gear 7032 is driven to rotate by a motor.

[0032] In this invention, the motor drives the rotating shaft 7031 to rotate on the outer wall of the hollow ball frame 702. The gear 7032, which is fixedly sleeved on the rotating shaft 7031, rotates synchronously with the rotating shaft 7031. The gear 7032 cooperates with the synchronous rotating frame 704 to drive the synchronous rotating frame 704 to move, thereby changing the rotation angle of the lifting assembly 705, so that the lifting assembly 705 switches between a high lifting state and a low lifting state to adapt to coal slime and coal gangue with different characteristics.

[0033] In an embodiment of the present invention, the synchronous rotating frame 704 is generally spherical in shape. The synchronous rotating frame 704 includes ring rods 7041, arc connecting rods 7042, limiting rods 7043, and toothed grooves 7044. A plurality of ring rods 7041 are rotatably sleeved on the outer wall of the hollow ball frame 702. The arc connecting rods 7042 are fixedly connected to a plurality of ring rods 7041. A plurality of limiting rods 7043 are fixedly disposed on the outer wall of the ring rods 7041. The toothed grooves 7044 are formed on one of the ring rods 7041, and gears 7032 are meshed and connected to the toothed grooves 7044.

[0034] In this invention, gear 7032 meshes with the tooth groove 7044 of ring rod 7041 on synchronous rotating frame 704. When gear 7032 rotates under the drive of motor, it drives ring rod 7041 to rotate around the outer wall of hollow ball frame 702. Through the connecting action of arc connecting rod 7042, several ring rods 7041 rotate synchronously, and the limiting rod 7043 on the outer wall of ring rod 7041 is linked to push the lifting assembly 705 to rotate around rotating hole 7023, realize the synchronous adjustment of the angle of lifting assembly 705, and thus complete the switching between high lifting state and low lifting state to adapt to coal slime and coal gangue with different characteristics.

[0035] In another embodiment of the present invention, the lifting assembly 705 includes a rotating rod 7051, a lifting plate 7052, an adjusting block 7053, and a sliding hole 7054. A plurality of rotating rods 7051 are rotatably inserted into the rotating hole 7023, the lifting plate 7052 is fixedly connected to one end of the rotating rod 7051, the adjusting block 7053 is fixedly connected to the other end of the rotating rod 7051, the sliding hole 7054 is opened on the adjusting block 7053, and the limiting rod 7043 is slidably inserted into the sliding hole 7054.

[0036] In this invention, when the ring rod 7041 of the synchronous rotating frame 704 rotates, the limiting rod 7043 on its outer wall slides within the sliding hole 7054 of the adjusting block 7053. Through the interaction between the sliding hole 7054 and the limiting rod 7043, the rotating rod 7051 is driven to rotate around the rotating hole 7023 of the hollow ball frame 702. The lifting plate 7052 at one end of the rotating rod 7051 rotates synchronously with the rotating rod 7051, thereby adjusting the angle of the lifting plate 7052. like Figure 11 As shown, when the lifting plate 7052 rotates to a vertical position, due to the small contact area between the lifting plate 7052 and the material, the rotation of the hollow ball frame 702 can only lift the material to a relatively low height, which is suitable for low-viscosity coal slime and porous, fragile coal gangue. Excessive impact force may blow away the already attached thin layer of mud, resulting in waste and uneven adhesion.

[0037] See Figure 11 When the lifting plate 7052 rotates to a horizontal position, due to the large contact area between the lifting plate 7052 and the material and the arc shape of the lifting plate 7052, the hollow ball frame 702 rotates and lifts the material to a higher height, which is suitable for high-viscosity coal slime and smooth, high-density coal gangue. This is because not only can the large impact force overcome the viscosity of the slime, allowing it to spread and adhere better and preventing the material from clumping due to excessive stickiness, but the higher lifting height and impact force can also ensure a stronger adhesion.

[0038] In another embodiment of the present invention, the ring spraying mechanism 6 includes an annular pipe 601, a feed pipe 602 and a nozzle 603. The annular pipe 601 is fixedly disposed at the top of the feed bin 3, the feed pipe 602 is disposed at the top of the annular pipe 601, and the nozzles 603 are arranged in annularly at equal intervals at the bottom of the annular pipe 601. The nozzles 603 are inserted into the feed bin 3. The feed pipe 602, the annular pipe 601 and the nozzles 603 are connected. The input end of the feed pipe 602 is connected to an external powder supply mechanism.

[0039] In this invention, the external powder supply mechanism conveys coal slime powder to the annular pipe 601 through the feed pipe 602. The annular pipe 601 evenly distributes the powder to the nozzles 603 arranged in an annular pattern at equal intervals at its bottom end. The nozzles 603 spray the coal slime powder from the top of the feed bin 3 into the bin, and make full contact with the coal gangue lifted by the rolling adhesion mechanism 7 during the falling process, so as to achieve uniform adhesion of coal slime on the surface of coal gangue.

[0040] In another embodiment of the present invention, a turbulence mechanism 8 is provided at the bottom of the feed bin 3. The turbulence mechanism 8 includes a rotating shaft frame 801 and turbulence blades 802. The rotating shaft frame 801 is rotatably disposed at the bottom of the feed bin 3. The turbulence blades 802 are arranged in a ring at equal intervals on the rotating shaft frame 801. The rotating shaft frame 801 is driven by a motor.

[0041] The motor-driven rotating shaft 801 at the bottom of the feed hopper 3 of this invention rotates, causing the annularly spaced turbulence blades 802 to rotate synchronously. The rotating turbulence blades 802 create continuous turbulence on the coal slime powder discharged from the rolling adhesion mechanism 7. On the one hand, they lift up the deposited coal slime powder again, allowing it to come into secondary contact with the insufficiently adhered coal gangue, further improving the adhesion efficiency between coal slime and coal gangue. On the other hand, the stirring prevents the coal slime powder from accumulating and agglomerating at the bottom of the feed hopper 3, ensuring unobstructed material conveying channels.

[0042] Example 2: This example provides a feeding method for coal slime and gangue spreading and adhering technology, including the following steps: S1, Equipment bearing and initial material conveying; Coal gangue enters the feed bin 3 through the coal inlet 5. The coal chute 4 at the bottom of the platform 2 is connected to the discharge end of the feed bin 3, providing a channel for the final output of materials. S2, Material Inlet and Flow Control; Coal gangue enters the hollow ball frame 702 through the feed hole 7021 at the top of the hollow ball frame 702, and the aperture valve 706 at the feed hole 7021 regulates the amount of material entering; S3, Adjustment of lifting component angle and switching of status; S3.1 The rotating shaft 7031 of the motor-driven adjustment component 703 rotates, driving the gear 7032 to rotate synchronously. The gear 7032 meshes with the tooth groove 7044 of the ring rod 7041 on the synchronous rotating frame 704. Through the arc connecting rod 7042, it drives several ring rods 7041 to rotate synchronously. The limiting rod 7043 on the outer wall of the ring rod 7041 slides in the sliding hole 7054 of the adjusting block 7053 of the lifting component 705, driving the rotating rod 7051 to rotate around the rotating hole 7023. When the lifting plate 7052 rotates to a vertical state, it is suitable for low-viscosity coal slime and porous, fragile coal gangue. S3.2 The rotating shaft 7031 of the motor-driven adjustment component 703 rotates, driving the gear 7032 to rotate synchronously. The gear 7032 meshes with the tooth groove 7044 of the ring rod 7041 on the synchronous rotating frame 704. Through the arc connecting rod 7042, it drives several ring rods 7041 to rotate synchronously. The limiting rod 7043 on the outer wall of the ring rod 7041 slides in the sliding hole 7054 of the adjusting block 7053 of the lifting component 705, driving the rotating rod 7051 to rotate around the rotating hole 7023. When the lifting plate 7052 rotates to a horizontal state, it is suitable for high viscosity coal slime and smooth surface coal gangue with high density. S4, Rolling attachment mechanism drive and basic operation; Start the geared motor 7012 to run. Its output end is directly fixedly connected to the hollow ball frame 702. The output torque drives the hollow ball frame 702 and the coal gangue to rotate stably in the feeding bin 3. S5. Coal slime spreading and adhesion treatment; The external powder supply mechanism of the ring spraying mechanism 6 conveys coal slurry powder to the annular pipe 601 through the feed pipe 602. The annular pipe 601 sprays the powder into the feed bin 3 through the annular nozzles 603 with equal spacing, so that it can fully contact the coal gangue lifted by the lifting component 705 during the falling process, and achieve uniform adhesion of coal slurry. S6, turbulence-enhanced adhesion; The motor at the bottom of the feed hopper 3 drives the rotating shaft 801 of the turbulence mechanism 8 to rotate, which in turn drives the turbulence blades 802, which are distributed in annular intervals, to rotate synchronously, thus lifting up the falling coal slime powder, preventing it from accumulating and achieving secondary adhesion. S7. Material discharge and flow control; The processed material is discharged through the discharge hole 7022 at the bottom of the hollow ball frame 702. The aperture valve 706 at the discharge hole 7022 controls the material discharge amount. Finally, the material is transported through the coal chute 4.

[0043] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A feeding device for spreading and attaching coal slime and gangue, characterized in that, Includes a support (1), a platform (2) on the support (1), a feeding bin (3) on the platform (2), a coal chute (4) at the bottom of the platform (2), the coal chute (4) being connected to the discharge end of the feeding bin (3), a coal inlet chute (5) at the top of the feeding bin (3), a ring spraying mechanism (6) at the top of the feeding bin (3), and a rolling attachment mechanism (7) inside the feeding bin (3). The rolling attachment mechanism (7) includes a drive assembly (701), a hollow ball frame (702), an adjustment assembly (703), a synchronous rotating frame (704), a lifting assembly (705), and an aperture valve (706). The drive assembly (701) is mounted on the platform (2) and its output end is rotatably inserted into the feed bin (3). The hollow ball frame (702) is fixedly connected to the output end of the drive assembly (701). The adjustment assembly (703) is mounted on the outer wall of the hollow ball frame (702). The synchronous rotating frame (704) is rotatably mounted on the outer wall of the hollow ball frame (702). Several lifting assemblies (705) are rotatably inserted into the inner wall of the hollow ball frame (702). The aperture valve (706) is located at the feed end and the discharge end of the hollow ball frame (702). The adjustment component (703) and the synchronous rotating frame (704) change the rotation angle of the lifting component (705), resulting in a high lifting state or a low lifting state. In the high lifting state, it is suitable for high viscosity coal slime and high density coal gangue, and in the low lifting state, it is suitable for low viscosity and low density coal gangue.

2. The feeding device for spreading and attaching coal slime and gangue according to claim 1, characterized in that, The drive assembly (701) includes a base (7011) and a geared motor (7012). The base (7011) is located on the platform (2), and the geared motor (7012) is located at the top of the base (7011). The output end of the geared motor (7012) is fixedly connected to the hollow ball frame (702).

3. The feeding device for spreading and attaching coal slime and gangue according to claim 1, characterized in that, The hollow ball frame (702) has an inlet hole (7021) at the top and an outlet hole (7022) at the bottom. The aperture valve (706) is located on the inlet hole (7021) and the outlet hole (7022).

4. The feeding device for spreading and attaching coal slime and gangue according to claim 1, characterized in that, The hollow ball frame (702) is also provided with a rotating hole (7023), and the lifting assembly (705) is rotatably inserted into the rotating hole (7023).

5. The feeding device for spreading and attaching coal slime and gangue according to claim 4, characterized in that, The adjustment component (703) includes a rotating shaft (7031) and a gear (7032). The rotating shaft (7031) is rotatably inserted into the outer wall of the hollow ball frame (702), and the gear (7032) is fixedly sleeved on the rotating shaft (7031). The gear (7032) is driven to rotate by a motor.

6. The feeding device for spreading and attaching coal slime and gangue according to claim 5, characterized in that, The synchronous rotating frame (704) is spherical in shape. The synchronous rotating frame (704) includes ring rods (7041), arc connecting rods (7042), limiting rods (7043), and tooth grooves (7044). A plurality of ring rods (7041) are rotatably sleeved on the outer wall of the hollow ball frame (702). The arc connecting rods (7042) are fixedly connected to a plurality of ring rods (7041). A plurality of limiting rods (7043) are fixedly disposed on the outer wall of the ring rods (7041). The tooth groove (7044) is opened on one of the ring rods (7041). The gear (7032) is meshed with the tooth groove (7044).

7. The feeding device for spreading and attaching coal slime and gangue according to claim 6, characterized in that, The lifting assembly (705) includes a rotating rod (7051), a lifting plate (7052), an adjusting block (7053), and a sliding hole (7054). A plurality of the rotating rods (7051) are rotatably inserted into the rotating hole (7023). The lifting plate (7052) is fixedly connected to one end of the rotating rod (7051). The adjusting block (7053) is fixedly connected to the other end of the rotating rod (7051). The sliding hole (7054) is opened on the adjusting block (7053). The limiting rod (7043) is slidably inserted into the sliding hole (7054).

8. The feeding device for spreading and attaching coal slime and gangue according to claim 1, characterized in that, The ring spraying mechanism (6) includes an annular pipe (601), a feed pipe (602), and a nozzle (603). The annular pipe (601) is fixedly installed at the top of the feed bin (3). The feed pipe (602) is installed at the top of the annular pipe (601). The nozzle (603) is arranged in a ring at equal intervals at the bottom of the annular pipe (601). The nozzle (603) is inserted into the feed bin (3). The feed pipe (602), the annular pipe (601), and the nozzle (603) are connected. The input end of the feed pipe (602) is connected to an external powder supply mechanism.

9. The feeding device for spreading and attaching coal slime and gangue according to claim 1, characterized in that, The feed bin (3) is provided with a turbulence mechanism (8) at the bottom of the interior. The turbulence mechanism (8) includes a rotating shaft frame (801) and turbulence blades (802). The rotating shaft frame (801) is rotatably located at the bottom of the feed bin (3). The turbulence blades (802) are arranged in a ring at equal intervals on the rotating shaft frame (801). The rotating shaft frame (801) is driven by a motor.

10. A feeding method for coal slime and gangue spreading and adhering technology, applicable to a coal slime and gangue spreading and adhering technology feeding device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, Equipment bearing and initial material conveying; Coal gangue enters the feed bin (3) through the coal inlet (5). The coal chute (4) at the bottom of the platform (2) is connected to the discharge end of the feed bin (3) to provide a channel for the final output of materials. S2, Material Inlet and Flow Control; Coal gangue enters the hollow ball frame (702) through the feed hole (7021) at the top of the hollow ball frame (702), and the aperture valve (706) at the feed hole (7021) regulates the amount of material entering; S3, Adjustment of lifting component angle and switching of status; S3.1 The rotating shaft (7031) of the motor drive adjustment component (703) rotates, driving the gear (7032) to rotate synchronously. The gear (7032) meshes with the tooth groove (7044) of the ring rod (7041) on the synchronous rotating frame (704). Through the arc connecting rod (7042), it drives several ring rods (7041) to rotate synchronously. The limiting rod (7043) on the outer wall of the ring rod (7041) slides in the sliding hole (7054) of the adjusting block (7053) of the lifting component (705), driving the rotating rod (7051) to rotate around the rotating hole (7023). When the lifting plate (7052) rotates to a vertical state, it is suitable for low-viscosity coal slime and porous, fragile coal gangue. S3.2 The rotating shaft (7031) of the motor drive adjustment component (703) rotates, driving the gear (7032) to rotate synchronously. The gear (7032) meshes with the tooth groove (7044) of the ring rod (7041) on the synchronous rotating frame (704). Through the arc connecting rod (7042), it drives several ring rods (7041) to rotate synchronously. The limiting rod (7043) on the outer wall of the ring rod (7041) slides in the sliding hole (7054) of the adjusting block (7053) of the lifting component (705), driving the rotating rod (7051) to rotate around the rotating hole (7023). When the lifting plate (7052) rotates to the horizontal state, it is suitable for high viscosity coal slime and smooth surface coal gangue with high density. S4, Rolling attachment mechanism drive and basic operation; Start the geared motor (7012) to run. Its output end is directly fixedly connected to the hollow ball frame (702). The output torque drives the hollow ball frame (702) and coal gangue to rotate stably in the feed bin (3). S5. Coal slime spreading and adhesion treatment; The external powder supply mechanism of the ring spraying mechanism (6) conveys coal slurry powder to the ring pipe (601) through the feed pipe (602). The ring pipe (601) sprays the powder into the feed bin (3) through the ring-shaped nozzles (603) with equal spacing, so that it can fully contact the coal gangue lifted by the lifting component (705) during the falling process and achieve uniform adhesion of coal slurry. S6, turbulence-enhanced adhesion; The motor at the bottom of the feed bin (3) drives the rotating shaft (801) of the turbulence mechanism (8) to rotate, which drives the turbulence blades (802) distributed at equal intervals in a ring to rotate synchronously, raising the falling coal slurry powder, avoiding accumulation and achieving secondary adhesion; S7. Material discharge and flow control; The processed material is discharged through the discharge hole (7022) at the bottom of the hollow ball frame (702). The aperture valve (706) at the discharge hole (7022) controls the material discharge amount. Finally, the material is transported through the coal chute (4).

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