Floating concentrate blending machine and blending method thereof

Abstract

The invention discloses a floating concentrate blending machine and a blending method thereof, and belongs to the technical field of coal processing. The invention relates to a floating fine mixing machine, which comprises a rack, and further comprises a conveying part, a mixing part, a stirring part, a stirring part, a stirring part, a stirring part, a stirring part, a stirring part and a stirring part, the conveying part comprises a floating fine coal belt conveyor and a jigging fine coal belt conveyor, and the floating fine coal belt conveyor and the jigging fine coal belt conveyor are sequentially arranged on the rack from top to bottom; the drying box is connected with the rack and is arranged on the outer side of the flotation clean coal belt conveyor; the crushing cylinder is fixedly connected with the rack and arranged at the tail end of the flotation clean coal belt conveyor, and a crushing assembly is arranged in the crushing cylinder; the receiving hopper is fixedly connected with the rack and is arranged at the tail end of the jigging clean coal belt conveyor; according to the invention, the problems of high water content of the flotation concentrate, non-uniform blending of the mixed clean coal and the like are solved, the flotation clean coal filter cake is prevented from being bonded and agglomerated again after being independently crushed, the uniformity and stability of the mixed clean coal are ensured, the condition of the clean coal product is improved, and coal quality disputes are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of coal processing, in particular to a flotation blender and a blending method thereof. Background Art

[0002] Currently, most coal washing plants are heavy medium coal washing plants, especially coking coal washing plants. In coal washing plants that adopt this process, the clean coal products are not just the clean coal washed by heavy medium, but also a part of flotation clean coal, which is a mixed product of the two. Due to the physical properties of coal and the sorting equipment, the clean coal washed by heavy medium has lower ash content and lower moisture content, while the flotation clean coal has higher ash content and higher moisture content. If the flotation clean coal and heavy medium clean coal cannot be well mixed, the final product quality will fluctuate.

[0003] After being dehydrated by the filter press, the flotation clean coal forms a filter cake that falls onto the belt in lumps. When blended into clean coal, the flotation clean coal, due to its high viscosity and moisture content, easily agglomerates with the jigging clean coal. Furthermore, due to the long unloading intervals of the flotation clean coal filter press, the integrated clean coal belt contains only jigging clean coal for a period of time. This results in uneven blending of the flotation clean coal in the clean coal bin, affecting not only the product appearance but also the blending quality. This leads to numerous business disputes in coal sales and significant losses for coal companies. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a flotation blender and a blending method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A flotation blender, comprising a frame and: A conveying section, comprising a flotation clean coal belt conveyor and a jig clean coal belt conveyor, wherein the flotation clean coal belt conveyor and the jig clean coal belt conveyor are sequentially arranged on a frame from top to bottom; A drying box connected to the frame and placed outside the flotation clean coal belt conveyor; A crushing drum, which is fixedly connected to the frame and placed at the end of the flotation clean coal belt conveyor, and a crushing assembly is provided in the crushing drum; A receiving hopper, which is fixedly connected to the frame and is placed at the end of the jigging clean coal belt conveyor; Among them, a material leveling component for evenly distributing material into the receiving hopper is provided at the bottom of the crushing cylinder, and a mixing component is connected to the discharge end of the receiving hopper.

[0006] Preferably, the crushing assembly includes a support plate fixed to the frame and the top of the drying box, a rotating rod rotatably connected between the two support plates, a first eccentric shaft arranged on the rotating rod, a first rocker arm rotatably connected to the first eccentric shaft, a moving rod movably connected to the first rocker arm, and a crushing block arranged at the bottom of the moving rod, the crushing block is movably arranged in the crushing barrel, a driving motor for driving the rotating rod to rotate is fixed on the support plate, and the moving rod is slidably connected to the frame.

[0007] Preferably, the rotating rod is provided with a second eccentric shaft, a second rocker arm rotationally connected to the second eccentric shaft, a sliding rod rotationally connected to the second rocker arm, a lifting plate arranged at the bottom of the sliding rod, and a crushing rod arranged at the bottom of the lifting plate, and the sliding rod is slidably connected to the drying box.

[0008] Preferably, the crushing barrel includes a material collection box fixedly connected to the frame, a material receiving barrel arranged on the top of the material collection box, and a filter plate arranged between the material collection box and the material receiving barrel. The material receiving barrel includes a main barrel body and a temporary storage barrel fixedly connected to the main barrel body. The diameter of the temporary storage barrel is larger than the diameter of the main barrel body, and the crushing block is movably opposed to the inner wall of the main barrel body.

[0009] Preferably, an elastic telescopic rod is provided between the collecting box and the receiving barrel, and a push rod is provided on the top of the crushing block, and the top of the push rod is movably abutted against the inner wall of the temporary storage barrel.

[0010] Preferably, the material leveling assembly includes a material leveling hopper fixed to the bottom of the aggregate box, and discharge ports connected to the material leveling hopper are opened on both sides of the aggregate box. Side plates are fixed on the frame, and a reciprocating screw is rotatably connected to the side plates. A sleeve is threadedly connected to the reciprocating screw, and a sleeve is provided on the sleeve, which is slidably connected to the material leveling hopper. A push plate is provided on the end of the sleeve, and the push plate is slidably connected to the inner bottom wall of the aggregate box. The bottom of the material leveling hopper is connected to a connecting pipe that is interconnected with the receiving hopper.

[0011] Preferably, a transmission rod is rotatably connected to the frame, a first bevel gear and a second bevel gear are provided on the transmission rod, a sub-bevel gear 1 meshing with the first bevel gear is provided on the rotating rod, and a sub-bevel gear 2 meshing with the second bevel gear is provided on the reciprocating screw.

[0012] Preferably, the mixing assembly includes a mixing tube rotatably connected to the receiving hopper, a plurality of material shifting plates are evenly arranged in a circle inside the mixing tube, a third auxiliary bevel gear is fixedly provided on the outside of the mixing tube, and a third bevel gear meshing with the third auxiliary bevel gear is provided at the bottom of the transmission rod.

[0013] Preferably, an electric heating element is provided on the bottom side of the drying box, and a through hole for airflow to pass through is provided on the conveyor belt of the flotation clean coal belt conveyor.

[0014] The present invention also discloses a blending method of a flotation blender, comprising the following steps: S1: The flotation clean coal filter cake after filtration by the filter press is transported by the flotation clean coal belt conveyor, and the jigging clean coal is transported by the jigging clean coal belt conveyor. The flotation clean coal filter cake enters the drying box and is dried by hot air. The drive motor is controlled to operate, so that the crushing component operates and drives the material leveling component and the mixing component to work; S2: The dried flotation clean coal filter cake falls into the crushing drum, and the driving motor drives the rotating rod to rotate when it runs. When the rotating rod rotates, the first eccentric shaft and the second eccentric shaft rotate; S3: When the second eccentric shaft rotates, the second swing rod drives the slide bar to move back and forth relative to the drying box, so that the slide bar drives the lifting plate to move back and forth in the drying box, so that the crushing rod at the bottom of the lifting plate punctures the flotation clean coal filter cake to be dried in the drying box, thereby increasing the contact area between the filter cake and the hot air; S4: When the first eccentric shaft rotates, the moving rod is driven to move back and forth up and down through the first swing rod, so that the crushing block at the bottom of the moving rod moves back and forth up and down in the crushing barrel. When the crushing block moves down, the filter cake dropped into the crushing barrel is crushed. When the crushing block moves up, the ejector rod is used to push the receiving barrel upward, and the elastic telescopic rod is stretched, causing the receiving barrel to shake relative to the collecting box, so that the filter cake pieces crushed by the crushing block in the receiving barrel pass through the filter plate and fall to the bottom of the collecting box. S5: When the rotating rod rotates, the auxiliary bevel gear 1 engages with the first bevel gear on the transmission rod, so that the transmission rod drives the second bevel gear and the third bevel gear to rotate; S6: The second bevel gear is meshed with the secondary bevel gear on the reciprocating screw for transmission. The sleeve moves along the axial direction of the reciprocating screw. When the sleeve moves, it drives the casing to move. When the casing moves, it drives the push plate to move back and forth at the bottom of the aggregate box. No matter whether the push plate moves left or right, it can push the filter cake blocks that fall to the bottom of the aggregate box out of the discharge port in an orderly manner. Then the flotation clean coal blocks fall into the hopper and enter the receiving hopper through the connecting pipe. The filter cake blocks are initially contacted and mixed with the jigging clean coal in the receiving hopper. Then the mixed clean coal slides down the receiving hopper into the mixing pipe. S7: The third bevel gear and the secondary bevel gear on the mixing pipe are meshed for transmission. The mixing pipe rotates relative to the receiving hopper. The clean coal between the two adjacent stripper plates on the bottom side of the mixing pipe is transported upward. As the clean coal is transported to the upper side of the mixing pipe, the clean coal falls again and mixes with the clean coal placed between the two adjacent stripper plates at this time, achieving uniform mixing of the jig clean coal and the flotation clean coal. During the mixing period, the clean coal is gradually discharged along the inclined mixing pipe.

[0015] Compared with the prior art, the present invention provides a flotation blender and a blending method thereof, which have the following beneficial effects: 1. The flotation clean coal blending machine and its blending method use a drying box to dry the flotation clean coal filter cake after filtration to remove the moisture inside it. Then, the crushing component is controlled to operate, so that the crushing component drives the material leveling component and the mixing component to work. The dried flotation clean coal is crushed and then mixed with the jigging clean coal. This solves the problems of high moisture content in the flotation clean coal and uneven mixing of the added clean coal. It also prevents the flotation clean coal filter cake from clumping again after being crushed separately, ensures the uniformity and stability of the mixed clean coal, improves the appearance of the clean coal product, and avoids coal quality disputes. 2. The flotation clean coal blending machine and its blending method utilize the second swing arm to drive the slide bar to move back and forth relative to the drying box when the second eccentric shaft rotates, so that the slide bar drives the lifting plate to move back and forth in the drying box, so that the crushing rod at the bottom of the lifting plate punctures the flotation clean coal filter cake to be dried in the drying box, thereby increasing the contact area between the filter cake and the hot air, thereby improving the drying effect and drying efficiency of the flotation clean coal; 3. The flotation blending machine and its blending method utilize the first swing arm to drive the moving rod to move up and down reciprocatingly when the first eccentric shaft rotates, so that the crushing block at the bottom of the moving rod moves up and down reciprocatingly in the crushing barrel. When the crushing block moves down, the filter cake dropped into the crushing barrel is crushed. When the crushing block moves up, the push rod pushes the receiving barrel to move up, and the elastic telescopic rod is stretched, so that the receiving barrel vibrates relative to the aggregate box, so that the filter cake blocks crushed by the crushing block in the receiving barrel pass through the filter plate and fall to the bottom of the aggregate box, thereby ensuring the rapid fall of the flotation clean coal fragments after crushing, and avoiding the slow fall of the flotation clean coal after crushing, resulting in a long time interval for the flotation clean coal discharge, which affects the mixing effect of the subsequent flotation clean coal and the jigging clean coal. 4. The flotation clean coal blending machine and the blending method thereof drive the sleeve to move when the sleeve moves back and forth along the reciprocating screw, and the sleeve drives the push plate to move back and forth at the bottom of the aggregate box. No matter whether the push plate moves left or right, the filter cake blocks that fall to the bottom of the aggregate box can be pushed out in an orderly manner from the discharge port. Then the flotation clean coal falls into the hopper and enters the receiving hopper through the connecting pipe. The filter cake blocks are initially contacted and mixed with the jigging clean coal in the receiving hopper, so that the flotation clean coal is not discharged only when the push plate moves left or right, and the flotation clean coal is continuously discharged in an orderly and uniform manner, so that the flotation clean coal and the jigging clean coal are evenly mixed, and the situation that the jigging clean coal is not mixed with the flotation clean coal for a period of time is avoided, thereby ensuring the processing quality of the clean coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 For the present invention Figure 1 A partial enlarged structural diagram of the middle part; Figure 3 The structure of the present invention is schematically shown Figure 2 ; Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure of part B in the middle; Figure 5 This is a schematic diagram of the structure of the present invention without the frame; Figure 6 For the present invention Figure 5 Schematic diagram of cross-section structure; Figure 7 For the present invention Figure 6 Schematic diagram of the partially enlarged structure of the middle C part; Figure 8 For the present invention Figure 6 A schematic diagram of the partially enlarged structure of the middle D part; Figure 9 Schematic diagram of the cross-sectional structure of the crushing drum of the present invention; Figure 10 It is a structural schematic diagram of the reciprocating screw rod of the present invention; Figure 11 It is a partial structural schematic diagram of the flotation clean coal belt conveyor of the present invention.

[0017] Figure: 1, frame; 2, flotation clean coal belt conveyor; 3, jigging clean coal belt conveyor; 4, crushing drum; 401, collecting box; 4011, discharge port; 402, receiving drum; 4021, main drum; 4022, temporary storage drum; 403, filter plate; 404, elastic telescopic rod; 5, receiving hopper; 6, drying box; 7, support plate; 701, rotating rod; 7011, auxiliary bevel gear 1; 702, first eccentric shaft; 703, first swing arm; 704, moving rod; 705, crushing block; 7051, Push rod; 706, drive motor; 8, second eccentric shaft; 801, second rocker arm; 802, slide bar; 803, lifting plate; 804, crushing rod; 9, material hopper; 901, side plate; 902, reciprocating screw; 9021, secondary bevel gear 2; 903, sleeve; 904, casing; 905, push plate; 10, connecting pipe; 11, transmission rod; 111, first bevel gear; 112, second bevel gear; 113, third bevel gear; 12, mixing tube; 121, material stripping plate; 122, secondary bevel gear 3. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] Example 1: Reference Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 9 A flotation blender comprises a frame 1 and further comprising: The conveying part includes a flotation clean coal belt conveyor 2 and a jigging clean coal belt conveyor 3, and the flotation clean coal belt conveyor 2 and the jigging clean coal belt conveyor 3 are sequentially arranged on the frame 1 from top to bottom; A drying box 6 is connected to the frame 1 and is placed outside the flotation clean coal belt conveyor 2; Crushing drum 4, which is fixedly connected to the frame 1 and placed at the end of the flotation clean coal belt conveyor 2, and a crushing assembly is provided in the crushing drum 4; The receiving hopper 5 is fixedly connected to the frame 1 and is placed at the end of the jigging clean coal belt conveyor 3; Among them, the bottom of the crushing cylinder 4 is provided with a material leveling component for evenly distributing materials into the receiving hopper 5, and the discharge end of the receiving hopper 5 is connected to a mixing component.

[0021] Specifically, the flotation clean coal filter cake after filtration by the filter press is conveyed by the flotation clean coal belt conveyor 2, and the jigging clean coal is conveyed by the jigging clean coal belt conveyor 3. The flotation clean coal filter cake enters the drying box 6 and is dried by hot air to remove the moisture inside it. The operation of the crushing component is controlled to make the crushing component run and drive the material leveling component and the mixing component to work. The dried flotation clean coal is crushed and mixed with the jigging clean coal, which solves the problems of high moisture content in the flotation clean coal and uneven mixing of the added clean coal, prevents the flotation clean coal filter cake from clumping again after being crushed separately, ensures the uniformity and stability of the mixed clean coal, improves the appearance of the clean coal product, and avoids coal quality disputes.

[0022] Example 2: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 8 and Figure 9, a flotation blender, based on Example 1, further, the crushing assembly includes a support plate 7 fixedly mounted on the frame 1 and the top of the drying box 6, a rotating rod 701 rotatably connected between the two support plates 7, a first eccentric shaft 702 arranged on the rotating rod 701, a first rocker arm 703 rotatably connected to the first eccentric shaft 702, a moving rod 704 movably connected to the first rocker arm 703 and a crushing block 705 arranged at the bottom of the moving rod 704, the crushing block 705 is movably arranged in the crushing barrel 4, a driving motor 706 for driving the rotating rod 701 to rotate is fixed on the support plate 7, and the moving rod 704 is slidably connected to the frame 1.

[0023] Furthermore, the crushing barrel 4 includes a material collection box 401 fixedly connected to the frame 1, a material receiving barrel 402 arranged on the top of the material collection box 401, and a filter plate 403 arranged between the material collection box 401 and the material receiving barrel 402. The material receiving barrel 402 includes a main barrel body 4021 and a temporary storage barrel 4022 fixedly connected to the main barrel body 4021. The diameter of the temporary storage barrel 4022 is larger than the diameter of the main barrel body 4021, and the crushing block 705 is movably opposed to the inner wall of the main barrel body 4021.

[0024] Furthermore, an elastic telescopic rod 404 is provided between the collecting box 401 and the receiving barrel 402 , and a top rod 7051 is provided on the top of the crushing block 705 , and the top of the top rod 7051 movably contacts the inner wall of the temporary storage barrel 4022 .

[0025] Specifically, when the crushing assembly is working, the driving motor 706 is controlled to operate, and the rotating rod 701 rotates to drive the first eccentric shaft 702 to rotate. When the first eccentric shaft 702 rotates, the moving rod 704 is driven to move up and down through the first swing rod 703, so that the crushing block 705 at the bottom of the moving rod 704 moves up and down in the crushing barrel 4. When the crushing block 705 moves down, the filter cake dropped into the crushing barrel 4 is crushed. When the crushing block 705 moves up, it enters the temporary storage barrel 4022, and the flotation clean coal falls from the gap between the crushing block 705 and the temporary storage barrel 4022. The top of the broken block 705 is set to a conical surface to prevent the flotation clean coal from accumulating. When the broken block 705 moves upward, the top rod 7051 pushes the receiving barrel 402 to move upward, and the elastic telescopic rod 404 is stretched, causing the receiving barrel 402 to shake relative to the aggregate box 401, so that the filter cake pieces broken by the broken block 705 in the receiving barrel 402 pass through the filter plate 403 and fall to the bottom of the aggregate box 401, ensuring the rapid fall of the flotation clean coal fragments after crushing, and avoiding the slow fall of the flotation clean coal after crushing, resulting in a long time interval for the flotation clean coal discharge, affecting the subsequent mixing effect of the flotation clean coal and the jigging clean coal.

[0026] Example 3: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7and Figure 11 A flotation blender, based on Example 2, is further provided with a second eccentric shaft 8, a second rocker arm 801 rotatably connected to the second eccentric shaft 8, a slide rod 802 rotatably connected to the second rocker arm 801, a lifting plate 803 arranged at the bottom of the slide rod 802, and a crushing rod 804 arranged at the bottom of the lifting plate 803, and the slide rod 802 is slidably connected to the drying box 6.

[0027] Furthermore, an electric heater is provided on the bottom side of the drying box 6 , and a through hole for airflow to pass through is provided on the conveyor belt of the flotation clean coal belt conveyor 2 .

[0028] Specifically, when the driving motor 706 is running, the second eccentric shaft 8 is driven to rotate through the rotating rod 701. When the second eccentric shaft 8 rotates, the sliding rod 802 is driven to move back and forth relative to the drying box 6 through the second rocker arm 801, so that the sliding rod 802 drives the lifting plate 803 to move back and forth in the drying box 6, so that the crushing rod 804 at the bottom of the lifting plate 803 punctures the flotation clean coal filter cake to be dried in the drying box 6, thereby increasing the contact area between the filter cake and the hot air, thereby improving the flotation clean coal drying effect and drying efficiency.

[0029] Example 4: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 10 , a flotation blender, based on Example 3, further, the material leveling component includes a material leveling hopper 9 fixedly mounted at the bottom of the collection box 401, and discharge ports 4011 connected to the material leveling hopper 9 are opened on both sides of the collection box 401. A side plate 901 is fixed on the frame 1, and a reciprocating screw rod 902 is rotatably connected to the side plate 901. A sleeve 903 is threadedly connected to the reciprocating screw rod 902. A sleeve 904 is provided on the sleeve 903 and is slidably connected to the material leveling hopper 9. A push plate 905 is provided at the end of the sleeve 904. The push plate 905 is slidably connected to the inner bottom wall of the collection box 401, and the bottom of the material leveling hopper 9 is connected to a connecting pipe 10 that is interconnected with the receiving hopper 5.

[0030] Furthermore, a transmission rod 11 is rotatably connected to the frame 1, and a first bevel gear 111 and a second bevel gear 112 are provided on the transmission rod 11. A sub-bevel gear 1 7011 meshing with the first bevel gear 111 is provided on the rotating rod 701, and a sub-bevel gear 2 9021 meshing with the second bevel gear 112 is provided on the reciprocating screw rod 902.

[0031] Specifically, when the rotating rod 701 of the crushing assembly rotates, the secondary bevel gear 1 7011 engages and transmits with the first bevel gear 111 on the transmission rod 11, so that the transmission rod 11 drives the second bevel gear 112 to rotate, and the second bevel gear 112 engages and transmits with the secondary bevel gear 2 9021 on the reciprocating screw rod 902, and the sleeve 903 moves axially along the reciprocating screw rod 902. When the sleeve 903 moves, it drives the sleeve 904 to move, and when the sleeve 904 moves, it drives the push plate 905 to reciprocate at the bottom of the aggregate box 401. Regardless of whether the push plate 905 moves left or right, it can push the filter cake blocks that fall to the bottom of the aggregate box 401 out of the discharge port 4011 in an orderly manner, so that the flotation clean coal is continuously and orderly discharged evenly, and the flotation clean coal and the jig clean coal are evenly mixed, avoiding the situation where the jig clean coal is not mixed with the flotation clean coal for a period of time, thereby ensuring the processing quality of the clean coal.

[0032] Example 5: Reference Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 A flotation blender, based on Example 4, further comprises a mixing assembly including a mixing tube 12 rotatably connected to a receiving hopper 5, a plurality of prying plates 121 being evenly arranged in a circumference in the mixing tube 12, a third secondary bevel gear 122 being fixedly provided on the outer side of the mixing tube 12, and a third bevel gear 113 being meshed with the third secondary bevel gear 122 being provided at the bottom of the transmission rod 11.

[0033] Specifically, when the rotating rod 701 rotates, the secondary bevel gear 1 7011 engages and transmits with the first bevel gear 111 on the transmission rod 11, so that the transmission rod 11 drives the third bevel gear 113 to rotate, and the third bevel gear 113 engages and transmits with the secondary bevel gear 3 122 on the mixing tube 12, and the mixing tube 12 rotates relative to the hopper 5. The two adjacent stripper plates 121 on the bottom side of the mixing tube 12 transport the clean coal in contact with the bottom wall of the mixing tube 12 upward. As the clean coal is transported to the upper side of the mixing tube 12, the clean coal falls again and mixes with the clean coal placed between the two adjacent stripper plates 121 at this time, thereby achieving uniform mixing of the jig clean coal and the flotation clean coal, and the clean coal is gradually discharged along the inclined mixing tube 12 during the mixing period.

[0034] The present invention also discloses a blending method of a flotation blender, comprising the following steps: S1: The flotation clean coal filter cake after filtration by the filter press is conveyed by the flotation clean coal belt conveyor 2, and the jigging clean coal is conveyed by the jigging clean coal belt conveyor 3. The flotation clean coal filter cake enters the drying box 6 and is dried by hot air. The drive motor 706 is controlled to operate, so that the crushing component operates and drives the material leveling component and the mixing component to work; S2: The dried flotation clean coal filter cake falls into the crushing drum 4, and the driving motor 706 drives the rotating rod 701 to rotate when it is running. When the rotating rod 701 rotates, the first eccentric shaft 702 and the second eccentric shaft 8 rotate; S3: When the second eccentric shaft 8 rotates, the second swing rod 801 drives the slide bar 802 to move back and forth relative to the drying box 6, so that the slide bar 802 drives the lifting plate 803 to move back and forth in the drying box 6, so that the crushing rod 804 at the bottom of the lifting plate 803 punctures the flotation clean coal filter cake to be dried in the drying box 6, thereby increasing the contact area between the filter cake and the hot air; S4: When the first eccentric shaft 702 rotates, the moving rod 704 is driven to move back and forth up and down through the first rocker arm 703, so that the crushing block 705 at the bottom of the moving rod 704 moves back and forth up and down in the crushing barrel 4. When the crushing block 705 moves down, the filter cake dropped into the crushing barrel 4 is crushed. When the crushing block 705 moves up, the material receiving barrel 402 is pushed up by the push rod 7051. The elastic telescopic rod 404 is stretched, causing the material receiving barrel 402 to shake relative to the collecting box 401, so that the filter cake pieces crushed by the crushing block 705 in the material receiving barrel 402 pass through the filter plate 403 and fall to the bottom of the collecting box 401. S5: When the rotating rod 701 rotates, the auxiliary bevel gear 1 7011 engages with the first bevel gear 111 on the transmission rod 11, so that the transmission rod 11 drives the second bevel gear 112 and the third bevel gear 113 to rotate; S6: The second bevel gear 112 is meshed with the secondary bevel gear 2 9021 on the reciprocating screw 902 for transmission, and the sleeve 903 moves axially along the reciprocating screw 902. When the sleeve 903 moves, it drives the sleeve 904 to move. When the sleeve 904 moves, it drives the push plate 905 to reciprocate at the bottom of the aggregate box 401. No matter whether the push plate 905 moves left or right, it can push the filter cake blocks that fall to the bottom of the aggregate box 401 out from the discharge port 4011 in an orderly manner. Then the flotation clean coal falls into the hopper 9 and enters the receiving hopper 5 through the connecting pipe 10. The filter cake blocks are initially contacted and mixed with the jigging clean coal in the receiving hopper 5. Then the mixed clean coal slides down the receiving hopper 5 into the mixing pipe 12. S7: The third bevel gear 113 is meshed with the secondary bevel gear 3 122 on the mixing tube 12 for transmission, and the mixing tube 12 rotates relative to the receiving hopper 5. The clean coal between the two adjacent stripper plates 121 on the bottom side of the mixing tube 12 is transported upward. As the clean coal is transported to the upper side of the mixing tube 12, the clean coal falls again and mixes with the clean coal placed between the two adjacent stripper plates 121 at this time, thereby achieving uniform mixing of the jig clean coal and the flotation clean coal, and the clean coal is gradually discharged along the inclined mixing tube 12 during the mixing period.

[0035] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A flotation blender, comprising a frame (1), characterized in that: Also includes: A conveying section, the conveying section comprising a flotation clean coal belt conveyor (2) and a jig clean coal belt conveyor (3), the flotation clean coal belt conveyor (2) and the jig clean coal belt conveyor (3) being arranged on the frame (1) in sequence from top to bottom; A drying box (6), the drying box (6) is connected to the frame (1) and is placed outside the flotation clean coal belt conveyor (2); A crushing drum (4), the crushing drum (4) is fixedly connected to the frame (1) and is placed at the end of the flotation clean coal belt conveyor (2), and a crushing assembly is provided in the crushing drum (4); A receiving hopper (5), the receiving hopper (5) is fixedly connected to the frame (1) and is placed at the end of the jigging clean coal belt conveyor (3); The bottom of the crushing cylinder (4) is provided with a material leveling component for evenly distributing material into the receiving hopper (5), and the discharge end of the receiving hopper (5) is connected to a mixing component.

2. A flotation blender according to claim 1, characterized in that: The crushing assembly comprises a support plate (7) fixedly mounted on the frame (1) and the top of the drying box (6), a rotating rod (701) rotatably connected between the two support plates (7), a first eccentric shaft (702) arranged on the rotating rod (701), a first swing rod (703) rotatably connected to the first eccentric shaft (702), a moving rod (704) movably connected to the first swing rod (703), and a crushing block (705) arranged at the bottom of the moving rod (704), wherein the crushing block (705) is movably arranged in the crushing cylinder (4), a driving motor (706) for driving the rotating rod (701) to rotate is fixedly mounted on the support plate (7), and the moving rod (704) is slidably connected to the frame (1).

3. A flotation blender according to claim 2, characterized in that: The rotating rod (701) is provided with a second eccentric shaft (8), a second swing rod (801) rotatably connected to the second eccentric shaft (8), a sliding rod (802) rotatably connected to the second swing rod (801), a lifting plate (803) provided at the bottom of the sliding rod (802), and a crushing rod (804) provided at the bottom of the lifting plate (803); the sliding rod (802) is slidably connected to the drying box (6).

4. A flotation blender according to claim 3, characterized in that: The crushing barrel (4) comprises a material collecting box (401) fixedly connected to the frame (1), a material receiving barrel (402) arranged on the top of the material collecting box (401), and a filter plate (403) arranged between the material collecting box (401) and the material receiving barrel (402); the material receiving barrel (402) comprises a main barrel body (4021) and a temporary storage barrel (4022) fixedly connected to the main barrel body (4021); the diameter of the temporary storage barrel (4022) is larger than the diameter of the main barrel body (4021); and the crushing block (705) movably contacts the inner wall of the main barrel body (4021).

5. A flotation blender according to claim 4, characterized in that: An elastic telescopic rod (404) is provided between the collecting box (401) and the receiving barrel (402), and a top rod (7051) is provided on the top of the crushing block (705). The top of the top rod (7051) movably contacts the inner wall of the temporary storage barrel (4022).

6. A flotation blender according to claim 5, characterized in that: The material leveling assembly includes a material leveling hopper (9) fixedly mounted on the bottom of a material collecting box (401), discharge ports (4011) connected to the material leveling hopper (9) are provided on both sides of the material collecting box (401), side plates (901) are fixedly mounted on the frame (1), a reciprocating screw rod (902) is rotatably connected to the side plates (901), a sleeve (903) is threadedly connected to the reciprocating screw rod (902), a sleeve (904) is provided on the sleeve (903) and is slidably connected to the material leveling hopper (9), a push plate (905) is provided at the end of the sleeve (904), and the push plate (905) is slidably connected to the inner bottom wall of the material collecting box (401), and the bottom of the material leveling hopper (9) is connected to a connecting pipe (10) that is interconnected with the receiving hopper (5).

7. A flotation blender according to claim 6, characterized in that: The frame (1) is rotatably connected to a transmission rod (11), the transmission rod (11) being provided with a first bevel gear (111) and a second bevel gear (112), the rotating rod (701) being provided with a first auxiliary bevel gear (7011) meshingly connected to the first bevel gear (111), and the reciprocating screw rod (902) being provided with a second auxiliary bevel gear (9021) meshingly connected to the second bevel gear (112).

8. A flotation blender according to claim 7, characterized in that: The mixing assembly comprises a mixing tube (12) rotatably connected to the receiving hopper (5), a plurality of material shifting plates (121) are evenly arranged in a circumferential pattern in the mixing tube (12), a third auxiliary bevel gear (122) is fixedly provided on the outside of the mixing tube (12), and a third bevel gear (113) meshingly connected to the third auxiliary bevel gear (122) is provided at the bottom of the transmission rod (11).

9. A flotation blender according to claim 8, characterized in that: An electric heating element is provided on the bottom side of the drying box (6), and a through hole for airflow to pass through is provided on the conveyor belt of the flotation clean coal belt conveyor (2).

10. A blending method for a flotation blender according to claim 9, characterized in that: The following steps are involved: S1: The flotation clean coal filter cake after filtration by the filter press is conveyed by the flotation clean coal belt conveyor (2), and the jigging clean coal is conveyed by the jigging clean coal belt conveyor (3). The flotation clean coal filter cake enters the drying box (6) and is dried by hot air. The driving motor (706) is controlled to operate, so that the crushing component operates and drives the material leveling component and the mixing component to work; S2: The dried flotation clean coal filter cake falls into the crushing drum (4), and the driving motor (706) drives the rotating rod (701) to rotate when it is running. When the rotating rod (701) rotates, it drives the first eccentric shaft (702) and the second eccentric shaft (8) to rotate; S3: When the second eccentric shaft (8) rotates, the second swing rod (801) drives the slide rod (802) to move back and forth relative to the drying box (6), so that the slide rod (802) drives the lifting plate (803) to move back and forth in the drying box (6), so that the crushing rod (804) at the bottom of the lifting plate (803) punctures the flotation clean coal filter cake to be dried in the drying box (6), thereby increasing the contact area between the filter cake and the hot air; S4: When the first eccentric shaft (702) rotates, the first swing rod (703) drives the moving rod (704) to move back and forth up and down, so that the crushing block (705) at the bottom of the moving rod (704) moves back and forth up and down in the crushing barrel (4). When the crushing block (705) moves downward, the filter cake dropped into the crushing barrel (4) is crushed. When the crushing block (705) moves upward, the material receiving barrel (402) is pushed upward by the push rod (7051). The elastic telescopic rod (404) is stretched, causing the material receiving barrel (402) to shake relative to the collecting box (401), so that the filter cake pieces crushed by the crushing block (705) in the material receiving barrel (402) pass through the filter plate (403) and fall to the bottom of the collecting box (401); S5: When the rotating rod (701) rotates, the auxiliary bevel gear 1 (7011) engages with the first bevel gear (111) on the transmission rod (11) for transmission, so that the transmission rod (11) drives the second bevel gear (112) and the third bevel gear (113) to rotate; S6: The second bevel gear (112) is meshed with the secondary bevel gear 2 (9021) on the reciprocating screw (902) for transmission, and the sleeve (903) moves axially along the reciprocating screw (902). When the sleeve (903) moves, it drives the sleeve (904) to move. When the sleeve (904) moves, it drives the push plate (905) to move back and forth at the bottom of the aggregate box (401). Whether the push plate (905) moves left or right, it can push the filter cake blocks that fall to the bottom of the aggregate box (401) out of the discharge port (4011) in an orderly manner. Then, the flotation clean coal falls into the hopper (9) and enters the receiving hopper (5) through the connecting pipe (10). The filter cake blocks are initially contacted and mixed with the jigging clean coal in the receiving hopper (5). Then, the mixed clean coal slides down the receiving hopper (5) into the mixing pipe (12); S7: The third bevel gear (113) is meshed with the secondary bevel gear (122) on the mixing tube (12) for transmission, and the mixing tube (12) rotates relative to the receiving hopper (5). The clean coal between the two adjacent shifting plates (121) on the bottom side of the mixing tube (12) is transported upward. As the clean coal is transported to the upper side of the mixing tube (12), the clean coal falls again and is mixed with the clean coal placed between the two adjacent shifting plates (121) at this time, thereby achieving uniform mixing of the jig clean coal and the flotation clean coal, and the clean coal is gradually discharged along the inclined mixing tube (12) during the mixing period.

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