Impurity removing and crushing equipment for fire coal of power plant

Abstract

The invention relates to the technical field of fire coal screening, in particular to power plant fire coal impurity removing and smashing equipment which comprises a supporting frame, a smashing frame is arranged on the supporting frame, a smashing roller is arranged in the smashing frame, a smashing motor connected to the supporting frame is fixedly arranged on the side face of the smashing roller, and an impurity removing box is arranged in the supporting frame. Filter plates, a rotating shaft, a magnetic block and a magnetic plate are adopted, the rotating shaft controls the filter plates to turn over, one of the two filter plates is always in a horizontal state, pulverized coal can be filtered, and in the rotating process of the filter plates, when the magnetic block gets close to the magnetic plate, a baffle can be extruded to rotate; at the moment, sundries on the filter plate can rotate in the inclined direction to slide into the collecting cavity, the turned filter plate is impacted by pulverized coal falling from the upper side, the pulverized coal clamped in the filter plate falls down through impact vibration, the filtering and impurity removing process of the filter plate can be continuously and smoothly carried out, and it is guaranteed that the filter plate is in a smooth state; and the efficiency and effect of screening and impurity removal of the pulverized coal are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of coal screening, in particular to a coal impurity removal and crushing device for a power plant. Background Art

[0002] Coal-fired power plants refer to the process of using coal as fuel to generate electricity in thermal power plants. This process usually involves the following main steps: Combustion: Coal is burned in the boiler to produce high-temperature and high-pressure steam. Steam cycle: The generated steam drives the steam turbine to rotate, thereby driving the generator to generate electricity. Cooling: The steam after passing through the steam turbine will be condensed into water and then sent back to the boiler for recycling. Emissions: The exhaust gas and solid waste (such as fly ash) generated during the combustion process need to be treated before they can be discharged.

[0003] The main reasons for coal screening in power plants include: Improving combustion efficiency: Screening can separate coal of different particle sizes to ensure that coal particles suitable for combustion enter the boiler, improving combustion efficiency and thermal energy utilization. Reducing pollutant emissions: By screening to remove larger impurities or incombustibles, pollutants generated during the combustion process can be reduced and environmental impact can be reduced. Extending equipment service life: After screening, the wear and tear of large pieces of coal and impurities on boilers and other equipment is reduced, thereby extending the service life of the equipment.

[0004] Chinese patent: CN109746183B provides a multi-stage vibration screening device for coal gangue sorting. The multi-stage vibration screening device for coal gangue sorting includes a supporting mechanism; a conveying box; a conveying mechanism; a material discharge mechanism, a feeding mechanism, and a transmission mechanism. The material discharge mechanism includes a mounting box and a coal powder box; the feeding mechanism is installed on the top of the coal powder box, and the feeding mechanism includes a first screen, a base and a box body; the transmission mechanism includes a second screen, a connecting plate, a screen frame, a driving plate, a connecting shaft and a slide. The interior of the mounting box is connected to the screen frame in an inclined sliding manner. One-half of the area of ​​the screen frame is a solid structure, and the other half of the area of ​​the screen frame is relatively welded with several groups of the second screen and the connecting plate. The multi-stage vibration screening device provided by the multi-stage vibration screening device for coal gangue sorting can perform multi-stage screening of coal gangue, has strong linkage, avoids blockage, and improves production efficiency.

[0005] According to the above patent and in combination with the prior art, it can be learned that coal screening is mostly carried out using a fixed screen. During the long-term use of the screen, debris will accumulate or even become blocked, affecting the screening process and greatly affecting the efficiency of crushing and screening impurities in the coal. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a power plant coal de-impurity and pulverization device to solve the technical problem that the existing screen will be accumulated with debris or even blocked during long-term use.

[0007] Based on the above-mentioned purpose, the present invention provides a coal de-impurity and pulverizing equipment for a power plant, including a supporting frame, a pulverizing frame is provided on the supporting frame, a pulverizing roller is provided in the pulverizing frame, a pulverizing motor connected to the supporting frame is fixedly provided on the side of the pulverizing roller, a dust collecting box is provided in the supporting frame, a connecting bucket is connected to the dust collecting box and a swinging material unloading mechanism is provided in the dust collecting box, two filter plates are provided in the dust collecting box, a rotating shaft is passed through and connected to the front side of the filter plate, the rotating shaft passes through and is rotatably arranged on the front side of the dust collecting box, both sides of the filter plate are slidably connected to a carrying and collecting mechanism arranged in the dust collecting box, a waste box fixedly connected to the dust collecting box is provided under the carrying and collecting mechanism, guide plates are fixedly connected to the two upper carrying and collecting mechanisms, a rotating adjustment mechanism arranged on the front side of the rotating shaft is fixedly connected, and a swinging extrusion mechanism fixedly connected to the front side of the dust collecting box is provided outside the rotating adjustment mechanism.

[0008] Preferably, both the left and right sides of the debris removal box are hinged with material collection doors, the position of the material collection doors corresponds to the position of the waste box, the lower side wall of the debris removal box is penetrated by a mesh plate, both the left and right sides of the filter plate are provided with magnetic blocks, the back side of the rotating shaft is fixedly connected with a circular plate, and the outer sleeve of the rotating shaft is provided with a coil spring fixedly connected to the circular plate and the debris removal box.

[0009] Preferably, the swing unloading mechanism comprises two swing plates, a connecting shaft is penetrated through the front of the swing plate, the connecting shaft is rotatably connected in the impurity removal box, and a first driving assembly is fixedly connected to the front of the left connecting shaft, and the first driving assembly is fixedly connected in the impurity removal box; A first pin shaft is arranged on the front side of the swing plate, and two first pin shafts are hingedly connected with a same linkage rod outside, and the two swing plates are respectively located at two sides of the bottom end of the connecting bucket.

[0010] Preferably, the carrying and collecting mechanism comprises a backing plate fixedly connected to the impurity removal box, the side of the backing plate close to the filter plate is set to be arc-shaped, a collecting chamber connected to the waste box is opened in the backing plate, a second pin is provided in the collecting chamber, and a baffle is hinged outside the second pin; A magnetic plate is provided on the side of the baffle, and the side of the magnetic plate close to the magnetic block has the same magnetism. A first elastic component is fixedly connected to the side of the baffle, and the other end of the first elastic component is fixedly connected to the inner wall of the collection chamber.

[0011] Preferably, the rotation adjustment mechanism includes a rotating cylinder fixedly connected to the front side of the rotating shaft, the outer arc surface of the rotating cylinder is provided with a guide groove, a sliding extrusion assembly fixedly connected to the front side of the impurity removal box is slidably connected in the guide groove, and the guide groove consists of a straight segment and a spiral segment.

[0012] Preferably, the sliding extrusion assembly includes a guide rod fixedly connected to the front side of the debris removal box and an extrusion column slidably connected in the guide groove, a linear bearing is slidably connected to the outside of the guide rod, a limit plate is fixedly connected to the front side of the guide rod, a second elastic assembly fixedly connected to the linear bearing and the limit plate is provided on the outer sleeve of the guide rod, a moving seat is fixedly connected to the outside of the linear bearing, the moving seat is fixedly connected to the guide rod, and a contact plate is fixedly connected to the side of the moving seat close to the swinging extrusion mechanism.

[0013] Preferably, the swinging extrusion mechanism includes an extrusion plate for extruding the contact plate, a rotating shaft is connected through the side of the extrusion plate, a horizontal plate fixedly connected to the front of the debris removal box is rotatably connected outside the rotating shaft, and an extension frame is fixedly connected to the back of the extrusion plate, and two rotating rods are provided in the extension frame.

[0014] Preferably, the left and right sides of the two rotating rods are fixedly connected with middle plates, one of the rotating rods is located in the middle of the extension frame, and a second driving assembly is provided on the front of the rotating rod located in the middle, and the side of the second driving assembly is fixedly connected with a fixed rod provided on the front of the debris removal box.

[0015] Beneficial effects of the present invention: The present invention adopts a filter plate, a rotating shaft, a collecting chamber, a magnetic block and a magnetic plate. The rotating shaft controls the flipping of the filter plate. One of the two filter plates is always in a horizontal state, and can filter the crushed coal powder. During the rotation of the filter plate, when the magnetic block approaches the magnetic plate, it will squeeze the baffle to rotate. At this time, the debris on the filter plate can rotate and slide into the collecting chamber along the inclined direction. The flipped filter plate is impacted by the coal powder falling from the upper side, so that the coal powder stuck in the filter plate falls off by the impact vibration. The filtering and impurity removal process of the filter plate can be carried out continuously and smoothly, and the filter plate is kept in an unobstructed state, thereby ensuring the efficiency and effect of coal powder screening and impurity removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from a side view; Figure 3 It is a structural schematic diagram of the impurity removal box of the present invention; Figure 4 This is a schematic diagram of the structure of the debris removal box when viewed from above; Figure 5It is a three-dimensional cross-sectional schematic diagram of the impurity removal box of the present invention; Figure 6 It is a three-dimensional schematic diagram of the filter plate of the present invention; Figure 7 It is a rear perspective schematic diagram of the filter plate of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the swing material unloading mechanism of the present invention; Fig. 9 It is a three-dimensional cross-sectional schematic diagram of the carrying and collecting mechanism of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the rotary adjustment mechanism of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the sliding extrusion assembly of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the swing extrusion mechanism of the present invention.

[0018] The numbers in the figure are: 1-support frame; 2-crushing frame; 3-crushing roller; 4-crushing motor; 5-removal box; 6-connecting bucket; 7-swinging unloading mechanism; 71-swinging plate; 72-connecting shaft; 73-first driving assembly; 74-first pin shaft; 75-linking rod; 8-filter plate; 9-magnetic block; 10-carrying collection mechanism; 101-pad; 102-collection chamber; 103-second pin shaft; 104-baffle; 105-first elastic assembly; 106-magnetic plate; 11-waste box; 12-rotating shaft; 13-circular plate; 14-coil spring; 15-guide plate; 16 -rotation adjustment mechanism; 161-rotating cylinder; 162-guide groove; 163-sliding extrusion assembly; 1631-guide rod; 1632-linear bearing; 1633-limiting plate; 1634-moving seat; 1635-second elastic assembly; 1636-extrusion column; 1637-contact plate; 17-swinging extrusion mechanism; 171-extrusion plate; 172-rotating shaft; 173-horizontal plate; 174-extension frame; 175-rotating rod; 176-middle plate; 177-second driving assembly; 178-fixed rod; 18-feeding door; 19-mesh plate. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] The first aspect of the present invention provides a power plant coal impurity removal and pulverization device, such as Figure 1-Figure 12 As shown, it includes a supporting frame 1, on which a crushing frame 2 is provided, in which a crushing roller 3 is provided, on the side of the crushing roller 3 a crushing motor 4 connected to the supporting frame 1 is fixedly provided, in the supporting frame 1 a dust collecting box 5 is provided, in which a connecting bucket 6 arranged under the crushing frame 2 is connected, in which a swinging material unloading mechanism 7 is provided, in which two filter plates 8 are provided, in which a rotating shaft 12 is penetrated and connected to the front of the filter plate 8, the rotating shaft 12 penetrates and rotates on the front of the dust collecting box 5, both sides of the filter plate 8 are slidably connected with a carrying and collecting mechanism 10 arranged in the dust collecting box 5, under which a waste box 11 fixedly connected in the dust collecting box 5 is provided, guide plates 15 are fixedly connected to the two upper carrying and collecting mechanisms 10, in which a rotating adjustment mechanism 16 arranged on the front of the dust collecting box 5 is fixedly connected on the front of the rotating shaft 12, and a swinging squeezing mechanism 17 fixedly connected to the front of the dust collecting box 5 is provided outside the rotating adjustment mechanism 16.

[0022] In this embodiment, the pulverizing motor 4 controls the pulverizing roller 3 to rotate, and the coal in the pulverizing frame 2 can be pulverized. The pulverized coal powder falls into the impurity removal box 5 through the connecting bucket 6. During the rotation and tilting process of the rotating shaft 12 and the filter plate 8, the impurities on the upper side can be introduced into the collecting chamber 102 and the waste box 11. The cooperation of the two filter plates 8, one of which is kept in a horizontal state, can ensure that the coal powder can always be filtered in the impurity removal box 5. The pulverizing roller 3 passes the pulverized coal powder into the impurity removal box 5, and the coal powder is discharged from the bottom after passing through the filter plate 8 in the impurity removal box 5. The upper and lower sides of the flipped filter plate 8 are reversed, so that the upper side of the flipped filter plate 8 is impacted by the coal powder falling from the upper side, and the vibration causes the coal powder mixed in the filter hole of the filter plate 8 to fall, so that the cleaning and collection of the impurities accumulated on the filter plate 8 is automatically realized, and the blockage in the filter plate 8 is cleaned; The side of the guide plate 15 close to the filter plate 8 is set to be inclined, and the inclined surface guides the falling coal powder to the swing plate 71 so that it falls back to the upper side of the filter plate 8 smoothly.

[0023] As an implementation method, Figures 3 to 7 As shown, further: The left and right sides of the debris removal box 5 are hinged with a material collection door 18, and the position of the material collection door 18 corresponds to the position of the waste box 11. The lower side wall of the debris removal box 5 is penetrated by a mesh plate 19, and the left and right sides of the filter plate 8 are provided with magnetic blocks 9. The back of the rotating shaft 12 is fixedly connected to a circular plate 13, and the outer sleeve of the rotating shaft 12 is provided with a coil spring 14 fixedly connected to the circular plate 13 and the debris removal box 5.

[0024] In this embodiment, the coil spring 14 can apply torque to the rotating shaft 12, so that the filter plate 8 remains stable when the rotating shaft 12 and the filter plate 8 are not squeezed and rotated, and the debris in the waste box 11 can be removed and cleaned through the material removal door 18.

[0025] As an implementation method, Figures 7 and 8 As shown, further: The swing unloading mechanism 7 includes two swing plates 71, and a connecting shaft 72 is provided through the front of the swing plate 71. The connecting shaft 72 is rotatably connected in the impurity removal box 5. The front of the left connecting shaft 72 is fixedly connected to a first driving assembly 73, and the first driving assembly 73 is fixedly connected in the impurity removal box 5. A first pin shaft 74 is provided on the front side of the swing plate 71 , and two first pin shafts 74 are hingedly connected with a same linkage rod 75 . The two swing plates 71 are respectively located at two sides of the bottom end of the connecting bucket 6 .

[0026] In this embodiment, the two swing plates 71 are located on both sides of the connecting bucket 6, which can ensure that the side of the two swing plates 71 that is close to each other can smoothly contact the falling coal powder. When the swing plates 71 rotate, the coal powder falling from the connecting bucket 6 can be guided so that the coal powder can be guided to different positions of the filter plate 8. At the same time, when the upper filter plate 8 rotates, the coal powder falling from the connecting bucket 6 can be guided to prevent the coal powder from falling on the rotating filter plate 8 on the upper side, ensuring that the coal powder falls on the filter plate 8 more evenly, so that the process of rotating the filter plate 8 to clean up debris can proceed smoothly. The first pin shaft 74 and the linkage rod 75 ensure that the two swing plates 71 rotate synchronously.

[0027] As an implementation method, Figure 7-8 and Fig. 9 As shown, further: The carrying and collecting mechanism 10 comprises a backing plate 101 fixedly connected to the impurity removal box 5, the side of the backing plate 101 close to the filter plate 8 is set to be arc-shaped, a collecting chamber 102 connected to the waste box 11 is opened in the backing plate 101, a second pin shaft 103 is arranged in the collecting chamber 102, and a baffle plate 104 is hinged outside the second pin shaft 103; A magnetic plate 106 is provided on the side of the baffle 104 , and the side of the magnetic plate 106 close to the magnetic block 9 has the same magnetism. A first elastic component 105 is fixedly connected to the side of the baffle 104 , and the other end of the first elastic component 105 is fixedly connected to the inner wall of the collection chamber 102 .

[0028] In this embodiment, since the baffle 104 is restricted by the second pin shaft 103, the baffle 104 can only rotate to a certain extent. The arc surface of the pad 101 blocks the rotation of the filter plate 8, and at the same time, it is convenient to block and gather the debris sliding off the inclined filter plate 8, so that after the subsequent baffle 104 is opened, the debris can smoothly fall into the collection chamber 102. The baffle 104 blocks the debris sliding off the surface of the filter plate 8 that has just started to rotate. After the magnetic force between the magnetic block 9 and the magnetic plate 106 controls the baffle 104 to be opened, the debris can smoothly fall into the collection chamber 102 and the waste bin 11. At the same time, the elastic force of the first elastic component 105 on the baffle 104 ensures that the baffle 104 remains in a stable closed state when the positions of the magnetic block 9 and the magnetic plate 106 do not correspond.

[0029] As an implementation method, Figure 5-6 and Figure 10-11 As shown, further: The rotation adjustment mechanism 16 includes a rotating cylinder 161 fixedly connected to the front of the rotating shaft 12. The outer arc surface of the rotating cylinder 161 is provided with a guide groove 162. A sliding extrusion assembly 163 fixedly connected to the front of the impurity removal box 5 is slidably connected in the guide groove 162. The guide groove 162 consists of a straight segment and a spiral segment.

[0030] The sliding extrusion assembly 163 includes a guide rod 1631 fixedly connected to the front of the debris removal box 5 and an extrusion column 1636 slidably connected in the guide groove 162, a linear bearing 1632 is slidably connected to the outside of the guide rod 1631, a limiting plate 1633 is fixedly connected to the front of the guide rod 1631, and a second elastic assembly 1635 fixedly connected to the linear bearing 1632 and the limiting plate 1633 is provided on the outer sleeve of the guide rod 1631, a moving seat 1634 is fixedly connected to the outside of the linear bearing 1632, the moving seat 1634 is fixedly connected to the guide rod 1631, and a contact plate 1637 is fixedly connected to the side of the moving seat 1634 close to the swinging extrusion mechanism 17.

[0031] In this embodiment, since the rotating cylinder 161 rotates together with the rotating shaft 12, the rotating cylinder 161 can rotate stably. When the extrusion column 1636 moves along the straight section of the guide groove 162, the rotating cylinder 161 and the filter plate 8 will remain stable. When the extrusion column 1636 moves along the spiral section, it will control the rotating cylinder 161 and the filter plate 8 to rotate, thereby realizing the flipping process of the filter plate 8. The linear bearing 1632 performs a stable linear motion outside the guide rod 1631, so that the extrusion rod can move stably in a linear manner, and the second elastic component 1635 applies elastic force to the moving seat 1634. When the moving seat 1634 is not squeezed by the outside, the moving seat 1634 and the extrusion column 1636 can be controlled to reset.

[0032] As an implementation method, Figure 5-6 and Fig.12 As shown, further: The swinging extrusion mechanism 17 includes an extrusion plate 171 for extruding the contact plate 1637. A rotating shaft 172 is connected through the side of the extrusion plate 171. A horizontal plate 173 fixedly connected to the front of the debris removal box 5 is rotatably connected outside the rotating shaft 172. An extension frame 174 is fixedly connected to the back of the extrusion plate 171. Two rotating rods 175 are arranged in the extension frame 174. The left and right sides of the two rotating rods 175 are fixedly connected with an intermediate plate 176, one of the rotating rods 175 is located in the middle of the extension frame 174, and a second driving assembly 177 is provided on the front of the rotating rod 175 located in the middle, and the side of the second driving assembly 177 is fixedly connected with a fixed rod 178 provided on the front of the debris removal box 5.

[0033] In this embodiment, the support of the rotating shaft 172 and the cross plate 173 is utilized to make the extrusion plate 171 and the extension frame 174 rotate stably and smoothly around the rotating shaft 172, and ensure that the rotation trajectory of the rotating rod 175 is within the extension frame 174. The rotation of the rotating rod 175 can be used to control the extension frame 174 and the extrusion plate 171 to swing up and down. The rotation trajectory of the extrusion plate 171 coincides with the movement trajectory of the contact plate 1637. Therefore, the reciprocating swing of the extrusion plate 171 can be used to smoothly adjust the contact plate 1637 to perform a linear motion in the horizontal direction, and ensure that the two are in a contact state. When the second driving component 177 controls the rotation of the rotating rod 175, the extension frame 174 can be controlled to rotate reciprocatingly up and down, thereby realizing the left and right swing of the extrusion plate 171. The upper and lower sides of the swinging extrusion plate 171 intermittently squeeze the contact plate 1637 and the moving seat 1634 to move, so that the upper and lower rotating cylinders 161 rotate successively.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0035] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power plant coal removal and crushing equipment, characterized in that: The invention comprises a support frame (1), wherein a crushing frame (2) is provided on the support frame (1), a crushing roller (3) is provided in the crushing frame (2), a crushing motor (4) connected to the support frame (1) is fixedly provided on the side of the crushing roller (3), a dust collecting box (5) is provided in the support frame (1), the dust collecting box (5) is connected to a connecting bucket (6) provided under the crushing frame (2), a swinging material unloading mechanism (7) is provided in the dust collecting box (5), two filter plates (8) are provided in the dust collecting box (5), a rotating shaft (12) is connected to the front of the filter plate (8), and the rotating shaft (12) is connected to the front of the filter plate (8). 12) penetrates and is rotatably arranged on the front side of the impurity removal box (5), both sides of the filter plate (8) are slidably connected to a carrying and collecting mechanism (10) arranged in the impurity removal box (5), a waste box (11) fixedly connected to the impurity removal box (5) is arranged below the carrying and collecting mechanism (10), and guide plates (15) are fixedly connected to the two upper carrying and collecting mechanisms (10), the front side of the rotating shaft (12) is fixedly connected to a rotating adjustment mechanism (16) arranged on the front side of the impurity removal box (5), and a swinging extrusion mechanism (17) fixedly connected to the front side of the impurity removal box (5) is arranged outside the rotating adjustment mechanism (16).

2. The power plant coal impurity removal and pulverization equipment according to claim 1 is characterized in that: The left and right sides of the impurity removal box (5) are both hingedly connected with material taking doors (18), and the position of the material taking doors (18) corresponds to the position of the waste box (11). The lower side wall of the impurity removal box (5) is penetrated by a mesh plate (19), and the left and right sides of the filter plate (8) are both provided with magnetic blocks (9). The back side of the rotating shaft (12) is fixedly connected with a circular plate (13), and the outer sleeve of the rotating shaft (12) is provided with a coil spring (14) fixedly connected to the circular plate (13) and the impurity removal box (5).

3. The power plant coal impurity removal and pulverization equipment according to claim 1 is characterized in that: The swing material unloading mechanism (7) comprises two swing plates (71), a connecting shaft (72) is provided through the front of the swing plate (71), the connecting shaft (72) is rotatably connected in the impurity removal box (5), and a first driving assembly (73) is fixedly connected to the front of the left connecting shaft (72), and the first driving assembly (73) is fixedly connected in the impurity removal box (5); A first pin shaft (74) is provided on the front side of the swing plate (71), and two first pin shafts (74) are hingedly connected to the same linkage rod (75). The two swing plates (71) are respectively located at two sides of the bottom end of the connecting bucket (6).

4. The power plant coal impurity removal and pulverization equipment according to claim 1 is characterized in that: The carrying and collecting mechanism (10) comprises a backing plate (101) fixedly connected to the impurity removal box (5); a side of the backing plate (101) close to the filter plate (8) is arranged in an arc shape; a collecting chamber (102) communicating with the waste box (11) is provided in the backing plate (101); a second pin shaft (103) is provided in the collecting chamber (102); and a baffle plate (104) is hingedly connected to the outside of the second pin shaft (103); A magnetic plate (106) is provided on the side of the baffle (104); the side of the magnetic plate (106) close to the magnetic block (9) has the same magnetic properties; a first elastic component (105) is fixedly connected to the side of the baffle (104); the other end of the first elastic component (105) is fixedly connected to the inner wall of the collection chamber (102).

5. The power plant coal impurity removal and pulverization equipment according to claim 1 is characterized in that: The rotation adjustment mechanism (16) comprises a rotation cylinder (161) fixedly connected to the front face of the rotation shaft (12); a guide groove (162) is provided on the outer arc surface of the rotation cylinder (161); a sliding extrusion assembly (163) fixedly connected to the front face of the impurity removal box (5) is slidably connected in the guide groove (162); the guide groove (162) consists of a straight segment and a spiral segment.

6. The power plant coal impurity removal and pulverization equipment according to claim 5, characterized in that: The sliding extrusion component (163) comprises a guide rod (1631) fixedly connected to the front of the debris removal box (5) and an extrusion column (1636) slidably connected in the guide groove (162); a linear bearing (1632) is slidably connected to the outside of the guide rod (1631); a limit plate (1633) is fixedly connected to the front of the guide rod (1631); a second elastic component (1635) fixedly connected to the linear bearing (1632) and the limit plate (1633) is provided on the outer sleeve of the guide rod (1631); a moving seat (1634) is fixedly connected to the outside of the linear bearing (1632); the moving seat (1634) is fixedly connected to the guide rod (1631); and a contact plate (1637) is fixedly connected to the side of the moving seat (1634) close to the swing extrusion mechanism (17).

7. The power plant coal impurity removal and pulverization equipment according to claim 6, characterized in that: The swinging extrusion mechanism (17) comprises an extrusion plate (171) for extruding the contact plate (1637); a rotating shaft (172) is connected through a side surface of the extrusion plate (171); a horizontal plate (173) is rotatably connected to the outside of the rotating shaft (172) and is fixedly connected to the front of the debris removal box (5); an extension frame (174) is fixedly connected to the back surface of the extrusion plate (171); and two rotating rods (175) are arranged in the extension frame (174).

8. The power plant coal impurity removal and pulverization equipment according to claim 7, characterized in that: The left and right sides of the two rotating rods (175) are fixedly connected to intermediate plates (176), one of the rotating rods (175) is located in the middle of the extension frame (174), a second driving assembly (177) is provided on the front of the rotating rod (175) located in the middle, and a fixed rod (178) provided on the front of the debris removal box (5) is fixedly connected to the side of the second driving assembly (177).

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