A raw material stirring device for coal mine filling mining

Abstract

The present application belongs to the technical fields of filling mining raw material production equipment, and particularly relates to a coal mine filling mining raw material stirring device, which comprises a stirring inner cylinder, a plurality of stirring mechanisms are fixedly connected to the top end of the stirring inner cylinder, the plurality of stirring mechanisms are rotatably arranged in the stirring inner cylinder and are in sliding contact with the inner side wall of the stirring inner cylinder, a material water adding part is fixedly and communicatively connected to the top end of the stirring inner cylinder, a slurry discharging part is fixedly and communicatively connected to the bottom end of the stirring inner cylinder, an outer stirring cylinder is coaxially and fixedly connected to the outer side of the stirring inner cylinder, a slurry lifting mechanism is sealingly and rotatably connected between the outer side wall of the stirring inner cylinder and the inner side wall of the outer stirring cylinder, the inside of the stirring inner cylinder is in communication with the inside of the outer stirring cylinder through an inlet and outlet part, a supporting part is fixedly connected to the bottom of the outer side wall of the outer stirring cylinder, and the slurry lifting mechanism is fixedly connected with the supporting part. The present application can improve the stirring and mixing effect and the stirring efficiency of the filling raw material.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of filling mining raw material production equipment, and particularly relates to a coal mine filling mining raw material stirring device. BACKGROUND

[0002] A large amount of coal under buildings such as villages not only causes great waste of coal resources, but also seriously restricts the normal production and succession of the mine; through decades of efforts, the overall level of village coal mining technology has been greatly improved; at present, the main methods that can realize non-village relocation mining are strip mining and filling mining.

[0003] Filling mining is the most effective way to realize non-village relocation mining and improve coal recovery, and has the best effect; filling mining is to process coal gangue, fly ash, industrial slag, and poor soil near the coal mine into slurry that does not need dehydration treatment on the ground, and to transport the slurry to the underground through pipelines by using filling pumps or gravity pressure, to timely fill the goaf or separation layer, to form an overburden strata support system mainly composed of paste filling body, to effectively control the surface subsidence within the allowable value range of buildings, to realize non-relocation of villages, to safely mine the coal under buildings, and to protect the ecological environment and groundwater resources of the mining area, so the filling of mixed slurry of coal gangue and fly ash is an important part of green mining technology of coal mines.

[0004] When mixing materials such as coal gangue and fly ash, a stirring device needs to be used, and the stirring effect of the stirring device greatly affects the filling effect; uneven mixed slurry cannot achieve sufficient support effect, and is prone to collapse; the stirring device in the prior art mainly uses a stirring shaft for stirring, and has poor stirring effect and low stirring efficiency.

[0005] Therefore, it is necessary to design a coal mine filling mining raw material stirring device to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide a coal mine filling mining raw material stirring device to solve the above problems and improve the raw material stirring and mixing effect and stirring efficiency.

[0007] In order to achieve the above object, the present application provides the following scheme: a raw material stirring device for coal mine filling mining, comprising a stirring inner cylinder, a plurality of stirring mechanisms are fixedly connected to the top end of the stirring inner cylinder, the stirring mechanisms are rotationally arranged in the stirring inner cylinder and are in sliding contact with the inner side wall of the stirring inner cylinder, a water and material adding part is fixedly communicated with the top end of the stirring inner cylinder, a slurry discharging part is fixedly communicated with the bottom end of the stirring inner cylinder, a stirring outer cylinder is coaxially fixedly connected to the outer side of the stirring inner cylinder, a slurry lifting mechanism is sealingly and rotationally connected between the outer side wall of the stirring inner cylinder and the inner side wall of the stirring outer cylinder, the inside of the stirring inner cylinder is communicated with the inside of the stirring outer cylinder through an inlet and outlet part, a supporting part is fixedly connected to the bottom of the outer side wall of the stirring outer cylinder, and the slurry lifting mechanism is fixedly connected with the supporting part.

[0008] Preferably, the plurality of stirring mechanisms comprise a second motor, the second motor is fixedly connected to the top end of the stirring outer cylinder, a stirring shaft is fixedly connected to the output shaft of the second motor, a plurality of stirring blades are fixedly connected to the outer side wall of the stirring shaft, the stirring blades are symmetrically arranged on both sides of the stirring shaft and are equidistantly arranged along the length direction of the stirring shaft, a plurality of material passing holes are formed in the stirring blades, the material passing holes are equidistantly arranged, two connecting top rods are fixedly connected to the top end of the stirring shaft, the connecting top rods are perpendicular to the stirring blades, the distal ends of the two connecting top rods are fixedly connected to a top ring, the top ring is in sliding contact with the top of the inner side wall of the stirring inner cylinder, two connecting bottom rods are fixedly connected to the bottom end of the stirring shaft, the connecting bottom rods are perpendicular to the stirring blades, the distal ends of the two connecting bottom rods are fixedly connected to a bottom ring, the bottom ring is in sliding contact with the bottom of the inner side wall of the stirring inner cylinder, a plurality of wall scraping rods are fixedly connected between the top ring and the bottom ring, the wall scraping rods are in sliding contact with the inner side wall of the stirring inner cylinder, a first stirring part is fixedly connected to one of the connecting top rods, and a second stirring part is fixedly connected to the other connecting top rod.

[0009] Preferably, the first stirring part comprises a third motor, the third motor is fixedly connected to the top end of the connecting top rod, a third rotating shaft is fixedly connected to the output shaft of the third motor, the other end of the third rotating shaft is rotationally connected to the connecting bottom rod, a third sleeve ring is threadedly connected to the outer side wall of the third rotating shaft, two lifting plates are fixedly connected to the outer side wall of the third sleeve ring, the lifting plates are symmetrically arranged on both sides of the third sleeve ring, and the end of one of the lifting plates away from the third sleeve ring is slidingly arranged in a vertical groove formed in the wall scraping rod.

[0010] Preferably, the second stirring part comprises a fourth motor, the fourth motor is fixedly connected with the other connecting top rod top end, the fourth motor output shaft is fixedly connected with one end of a fourth rotating shaft, the other end of the fourth rotating shaft is rotationally connected with the other connecting bottom rod, one end of a lifting frame is fixedly connected with the outer side wall of the fourth rotating shaft, the other end of the lifting frame is fixedly connected with a limiting block, the limiting block is slidably arranged in the vertical groove, a flap is rotationally connected with the bottom of the inner side wall of the lifting frame through two rotating shafts, the bottom of the inner side wall of the lifting frame is fixedly connected with a blocking strip away from the rotating shaft, and the flap away from the rotating shaft is overlapped with the blocking strip.

[0011] Preferably, the feeding and discharging part comprises a plurality of discharging ports and a plurality of feeding ports, the plurality of discharging ports are arranged on the bottom of the side wall of the stirring inner cylinder and are arranged at equal intervals in the circumferential direction of the side wall of the stirring inner cylinder, and the plurality of feeding ports are arranged on the top of the side wall of the stirring inner cylinder and are arranged at equal intervals in the circumferential direction of the side wall of the stirring inner cylinder.

[0012] Preferably, the slurry lifting mechanism comprises a rotating driving part, the bottom end of the rotating driving part is fixedly connected with the support part, the top end of the rotating driving part is sealingly rotationally connected with the outer side wall of the stirring inner cylinder and the inner side wall of the stirring outer cylinder, the top end of the rotating driving part is fixedly connected with a lifting spiral blade, and the lifting spiral blade is rotationally arranged between the outer side wall of the stirring inner cylinder and the inner side wall of the stirring outer cylinder.

[0013] Preferably, the rotating driving part comprises a support plate, the support plate is horizontally arranged and both ends of the support plate are fixedly connected with the support part, the top end of the support plate is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a connecting plate, the top of both ends of the connecting plate is fixedly connected with a connecting block, the top ends of the two connecting blocks are fixedly connected with a sealing rotary ring, the sealing rotary ring is sealingly rotationally connected with the outer side wall of the stirring inner cylinder and the inner side wall of the stirring outer cylinder, and the bottom end of the lifting spiral blade is fixedly connected with the top end of the sealing rotary ring.

[0014] Preferably, the material and water adding part comprises a feeding hopper and a water inlet pipe, and the bottom end of the feeding hopper and the bottom end of the water inlet pipe are fixedly communicated with the top end of the stirring inner cylinder.

[0015] Preferably, the slurry discharging part comprises a discharging pipe, one end of the discharging pipe is fixedly communicated with the bottom end of the stirring inner cylinder, and a valve is arranged on the discharging pipe.

[0016] Preferably, the support part comprises an outer fixed ring, the outer fixed ring is fixedly connected with the bottom of the outer side wall of the stirring outer cylinder, the bottom end of the outer fixed ring is fixedly connected with a plurality of supporting legs, and the plurality of supporting legs are arranged at equal intervals in the circumferential direction of the outer fixed ring.

[0017] Compared with the prior art, the present application has the following advantages and technical effects:

[0018] The present application can mix and stir the raw materials and water in multiple directions by the multiple stirring mechanisms arranged inside the stirring inner cylinder, thereby improving the mixing and stirring effect of the raw materials and water, and the pulp after stirring can enter between the stirring inner cylinder and the stirring outer cylinder through the inlet and outlet part, and then return to the inside of the stirring inner cylinder from the top of the stirring inner cylinder again by the action of the pulp lifting mechanism, and continue to be stirred by the multiple stirring mechanisms, thereby further improving the mixing and stirring effect of the pulp, the material and water adding part can continuously add raw materials or water into the stirring inner cylinder, thereby improving the stirring effect, the pulp after stirring can be discharged from the stirring inner cylinder through the pulp discharging part for use, and the support part can stably place the whole device on the ground. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor based on these drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 It is a schematic diagram of the bottom structure of the present application;

[0022] Figure 3 It is a schematic diagram of the pulp lifting mechanism structure of the present application;

[0023] Figure 4 It is a schematic diagram of the multiple stirring mechanism structure of the present application;

[0024] Figure 5 It is a schematic diagram of the second stirring part structure of the present application.

[0025] 1, stirring inner cylinder; 2, stirring outer cylinder; 3, outer fixed ring; 4, support leg; 5, feeding hopper; 6, water inlet pipe; 7, discharge pipe; 8, valve; 9, support plate; 10, first motor; 11, connecting plate; 12, connecting block; 13, sealing rotating ring; 14, lifting spiral blade; 15, discharge port; 16, feeding port; 17, second motor; 18, stirring shaft; 19, stirring blade; 20, material passing hole; 21, connecting top rod; 22, top ring; 23, wall scraping rod; 24, vertical groove; 25, connecting bottom rod; 26, bottom ring; 27, third motor; 28, third rotating shaft; 29, third sleeve ring; 30, lifting plate; 31, fourth motor; 32, fourth rotating shaft; 33, fourth sleeve ring; 34, lifting frame; 35, limiting block; 36, rotating shaft; 37, flap; 38, baffle. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figures 1 to 5 As shown, the present invention provides a raw material stirring device for coal mine filling and mining, including a stirring inner cylinder 1, a multiple stirring mechanism is fixedly connected to the top end of the stirring inner cylinder 1, the multiple stirring mechanisms are rotatably arranged in the stirring inner cylinder 1 and are in sliding contact with the inner wall of the stirring inner cylinder 1, the top end of the stirring inner cylinder 1 is fixedly connected to a material and water adding part, the bottom end of the stirring inner cylinder 1 is fixedly connected to a slurry discharge part, the outer side of the stirring inner cylinder 1 is coaxially fixedly connected to a stirring outer cylinder 2, a slurry lifting mechanism is sealed and rotatably connected between the outer wall of the stirring inner cylinder 1 and the inner wall of the stirring outer cylinder 2, the interior of the stirring inner cylinder 1 is connected to the interior of the stirring outer cylinder 2 through the material inlet and outlet part, the bottom of the outer wall of the stirring outer cylinder 2 is fixedly connected to a support part, and the slurry lifting mechanism is fixedly connected to the support part.

[0029] By means of the multiple stirring mechanisms arranged inside the inner stirring cylinder 1, the raw materials and water added to the inner stirring cylinder 1 can be mixed and stirred in multiple directions, thereby improving the stirring and mixing effect of the raw materials and water. The stirred slurry can enter between the inner stirring cylinder 1 and the outer stirring cylinder 2 through the material inlet and outlet parts, and then return to the inner stirring cylinder 1 from the top through the slurry lifting mechanism, and continue to be stirred by the multiple stirring mechanisms, thereby further improving the stirring and mixing effect of the slurry. The material and water adding part provided can continuously add raw materials or water to the inner stirring cylinder 1 to improve the stirring effect. The stirred slurry is discharged from the inner stirring cylinder 1 through the slurry discharge part for use. The provided support part can enable the entire device to be placed stably on the ground.

[0030] Further optimization scheme, multiple stirring mechanism includes second motor 17, second motor 17 and stirring outer barrel 2 top fixed connection, second motor 17 output shaft is fixedly connected with stirring shaft 18, stirring shaft 18 outside wall is fixedly connected with a plurality of stirring blades 19, a plurality of stirring blades 19 are symmetrically arranged on both sides of stirring shaft 18 and are arranged at equal intervals along the length direction of stirring shaft 18, a plurality of material holes 20 are formed in the stirring blades 19, a plurality of material holes 20 are arranged at equal intervals, the top end of stirring shaft 18 is fixedly connected with two connecting top rods 21, the connecting top rods 21 are perpendicular to the stirring blades 19, the distal ends of the two connecting top rods 21 are fixedly connected with a top ring 22, the top ring 22 is in sliding contact with the top of the inner side wall of the stirring inner barrel 1, the bottom end of the stirring shaft 18 is fixedly connected with two connecting bottom rods 25, the connecting bottom rods 25 are perpendicular to the stirring blades 19, the distal ends of the two connecting bottom rods 25 are fixedly connected with a bottom ring 26, the bottom ring 26 is in sliding contact with the bottom of the inner side wall of the stirring inner barrel 1, a plurality of wall scraping rods 23 are fixedly connected between the top ring 22 and the bottom ring 26, the wall scraping rods 23 are in sliding contact with the inner side wall of the stirring inner barrel 1, one of the connecting top rods 21 is fixedly connected with a first stirring part, and the other connecting top rod 21 is fixedly connected with a second stirring part.

[0031] The second motor 17 drives the stirring shaft 18 to rotate, and then drives the stirring blades 19 to rotate, so that the raw materials and water are mixed and stirred, the material holes 20 on the stirring blades 19 can improve the mixing and stirring effect of the raw materials and water, and the top ring 22 and the bottom ring 26 are driven to rotate by the connecting top rods 21 and the connecting bottom rods 25 during the rotation of the stirring shaft 18, and then the wall scraping rods 23 are driven to rotate, the wall scraping rods 23 scrape the slurry adhered to the inner side wall of the stirring outer barrel 2, so that the slurry is prevented from being left on the inner side wall of the stirring outer barrel 2 to affect the stirring effect, and the first stirring part and the second stirring part also produce stirring actions to stir the slurry during the rotation of the stirring shaft 18, so that the stirring and mixing effects of the slurry are improved under the multiple stirring and mixing actions.

[0032] Further optimization scheme, the first stirring part includes a third motor 27, the third motor 27 is fixedly connected with the top end of the connecting top rod 21, the output shaft of the third motor 27 is fixedly connected with one end of a third rotating shaft 28, the other end of the third rotating shaft 28 is rotatably connected with the connecting bottom rod 25, the outer side wall of the third rotating shaft 28 is threadedly connected with a third sleeve ring 29, the outer side wall of the third sleeve ring 29 is fixedly connected with two lifting plates 30, the two lifting plates 30 are symmetrically arranged on both sides of the third sleeve ring 29, and the end of one of the lifting plates 30 away from the third sleeve ring 29 is slidingly arranged in the vertical groove 24 formed in the wall scraping rod 23.

[0033] When the lifting plate 30 rotates to stir the slurry under the driving of the stirring shaft 18 and the connecting top rod 21, the third motor 27 is in operation to drive the third rotating shaft 28 to rotate. Since one end of the lifting plate 30 is vertically and upwardly movably arranged in the vertical slot 24, with the rotation of the third rotating shaft 28, the third sleeve ring 29 and the lifting plate 30 will move upward and downward in the vertical direction, so that the lifting plate 30 can simultaneously rotate and stir the slurry in the upward and downward directions.

[0034] In a further optimization scheme, the second stirring part comprises a fourth motor 31 fixedly connected with the other end of the connecting top rod 21, and an output shaft of the fourth motor 31 is fixedly connected with one end of a fourth rotating shaft 32. The other end of the fourth rotating shaft 32 is rotatably connected with the other end of the connecting bottom rod 25. One end of a lifting frame 34 is fixedly connected with the outer side wall of the fourth rotating shaft 32. The other end of the lifting frame 34 is fixedly connected with a limiting block 35 which is slidably arranged in the vertical slot 24. The inner side wall of the lifting frame 34 is rotatably connected with a flap 37 through two rotating shafts 36 at the bottom. The end of the inner side wall of the lifting frame 34 away from the rotating shaft 36 is fixedly connected with a blocking strip 38. The end of the flap 37 away from the rotating shaft 36 is overlapped with the blocking strip 38.

[0035] The lifting frame 34 moves upward and downward in the same way as the lifting plate 30, and can also stir the slurry in the upward and downward directions. In addition, when the lifting frame 34 rises, the blocking strip 38 limits the flap 37 to be in a horizontal state, and carries part of the slurry on the top of the flap 37 from the bottom of the stirring inner cylinder 1 to the top of the stirring inner cylinder 1. After the lifting frame 34 rises to the highest position, it begins to descend. In the process of descending, the slurry below the lifting frame 34 pushes the flap 37 open, so that the slurry above the flap 37 is turned out of the lifting frame 34 and left on the top of the stirred slurry. The lifting frame 34 continues to descend to the lowest position, and then continues to rise to carry part of the slurry from the bottom to the top again.

[0036] In a further optimization scheme, the feeding and discharging part comprises a plurality of discharging ports 15 and a plurality of feeding ports 16. The plurality of discharging ports 15 are arranged on the bottom of the side wall of the stirring inner cylinder 1 and are equally spaced along the circumference of the side wall of the stirring inner cylinder 1. The plurality of feeding ports 16 are arranged on the top of the side wall of the stirring inner cylinder 1 and are equally spaced along the circumference of the side wall of the stirring inner cylinder 1.

[0037] The stirred slurry flows out of the stirring inner cylinder 1 through the discharging ports 15, enters between the stirring inner cylinder 1 and the stirring outer cylinder 2, and then rises to the position of the feeding port 16 under the rotation and lifting of the slurry lifting mechanism, and reenters the stirring inner cylinder 1 through the feeding port 16 to continue stirring.

[0038] Further optimization scheme, the pulp lifting mechanism includes a rotary drive part, the bottom end of the rotary drive part is fixedly connected with the support part, the top end of the rotary drive part is sealingly and rotatably connected with the outer side wall of the stirring inner cylinder 1 and the inner side wall of the stirring outer cylinder 2, and the top end of the rotary drive part is fixedly connected with a lifting spiral blade 14, and the lifting spiral blade 14 is rotatably arranged between the outer side wall of the stirring inner cylinder 1 and the inner side wall of the stirring outer cylinder 2.

[0039] Further optimization scheme, the rotary drive part includes a support plate 9, the support plate 9 is horizontally arranged and both ends of the support plate 9 are fixedly connected with the support part, a first motor 10 is fixedly connected with the middle part of the top end of the support plate 9, a connecting plate 11 is fixedly connected with the output shaft of the first motor 10, two connecting blocks 12 are fixedly connected with the top ends of both ends of the connecting plate 11 respectively, a sealing rotary ring 13 is fixedly connected with the top ends of the two connecting blocks 12, the sealing rotary ring 13 is sealingly and rotatably connected with the outer side wall of the stirring inner cylinder 1 and the inner side wall of the stirring outer cylinder 2, and the bottom end of the lifting spiral blade 14 is fixedly connected with the top end of the sealing rotary ring 13.

[0040] The first motor 10 works, drives the sealing rotary ring 13 to rotate continuously through the connecting plate 11 and the connecting block 12, drives the lifting spiral blade 14 to rotate continuously in the process of rotating of the sealing rotary ring 13, and lifts the pulp at the bottom between the stirring inner cylinder 1 and the stirring outer cylinder 2 to the top in the process of rotating of the lifting spiral blade 14, and then reenters into the stirring inner cylinder 1 through the feeding port 16.

[0041] Further optimization scheme, the material and water adding part includes a feeding hopper 5 and a water inlet pipe 6, and the bottom ends of the feeding hopper 5 and the water inlet pipe 6 are fixedly communicated with the top end of the stirring inner cylinder 1.

[0042] The raw materials are continuously added into the stirring inner cylinder 1 through the feeding hopper 5, and water is continuously added into the stirring inner cylinder 1 through the water inlet pipe 6.

[0043] Further optimization scheme, the pulp discharging part includes a discharge pipe 7, one end of the discharge pipe 7 is fixedly communicated with the bottom end of the stirring inner cylinder 1, and the discharge pipe 7 is provided with a valve 8.

[0044] After the pulp is stirred, the valve 8 is opened, the stirred pulp is discharged through the discharge pipe 7, and after the discharge is completed, the valve 8 is closed, and the raw materials and water are continuously added into the stirring inner cylinder 1 for stirring and mixing.

[0045] Further optimization scheme, the support part includes an outer fixed ring 3, the outer fixed ring 3 is fixedly connected with the bottom of the outer side wall of the stirring outer cylinder 2, a plurality of support legs 4 are fixedly connected with the bottom end of the outer fixed ring 3, and the plurality of support legs 4 are arranged at equal intervals along the circumference of the outer fixed ring 3.

[0046] In the description of the present application, it needs to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] The above-described embodiments are only to describe the preferred modes of the present application, and not to limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A raw material mixing device for coal mine backfilling mining, characterized by, The utility model provides a stirring device, including stirring inner cylinder (1), the multiple stirring mechanism of fixed connection is provided with in the top of stirring inner cylinder (1), the multiple stirring mechanism rotation is arranged in the stirring inner cylinder (1) and with the inner side wall of stirring inner cylinder (1) sliding contact, the fixed communication of feed water adding part is provided with in the top of stirring inner cylinder (1), the fixed communication of discharge part is provided with in the bottom of stirring inner cylinder (1), the outer side of stirring inner cylinder (1) is coaxially fixed connection has the stirring outer cylinder (2) of stirring inner cylinder (1), the sealed rotation connection of the inner side wall of stirring outer cylinder (2) is provided with between the outer side wall of stirring inner cylinder (1) and the slurry lifting mechanism, the inside of stirring inner cylinder (1) is communicated with the inside of stirring outer cylinder (2) through the in -and -out material part, the fixed connection of support part is provided with in the bottom of the outer side wall of stirring outer cylinder (2), the fixed connection of slurry lifting mechanism and support part; The multiple stirring mechanism includes second motor (17), the top of stirring outer cylinder (2) is fixedly connected with second motor (17), the output shaft of second motor (17) is fixedly connected with stirring shaft (18), the outer side wall of stirring shaft (18) is fixedly connected with a plurality of stirring blades (19), a plurality of stirring blades (19) are symmetrically arranged on both sides of stirring shaft (18) and are arranged at equal intervals along the length direction of stirring shaft (18), a plurality of material passing holes (20) are formed in stirring blade (19), a plurality of material passing holes (20) are arranged at equal intervals, two connecting top rods (21) are fixedly connected with the top of stirring shaft (18), the connecting top rod (21) is perpendicular to the stirring blade (19), the distal ends of two connecting top rods (21) are fixedly connected with top ring (22), the top ring (22) is in sliding contact with the top of the inner side wall of stirring inner cylinder (1), two connecting bottom rods (25) are fixedly connected with the bottom of stirring shaft (18), the connecting bottom rod (25) is perpendicular to the stirring blade (19), the distal ends of two connecting bottom rods (25) are fixedly connected with bottom ring (26), the bottom ring (26) is in sliding contact with the bottom of the inner side wall of stirring inner cylinder (1), a plurality of wall scraping rods (23) are fixedly connected between top ring (22) and bottom ring (26), the wall scraping rod (23) is in sliding contact with the inner side wall of stirring inner cylinder (1), one of the connecting top rods (21) is fixedly connected with first stirring part, the other connecting top rod (21) is fixedly connected with second stirring part; The first stirring part comprises a third motor (27), the third motor (27) is fixedly connected with the top end of the connecting top rod (21), one end of the output shaft of the third motor (27) is fixedly connected with a third rotating shaft (28), the other end of the third rotating shaft (28) is rotatably connected with the connecting bottom rod (25), the outer side wall of the third rotating shaft (28) is threadedly connected with a third sleeve ring (29), the outer side wall of the third sleeve ring (29) is fixedly connected with two lifting plates (30), and the two lifting plates (30) are symmetrically arranged on the two sides of the third sleeve ring (29), wherein the end of one of the lifting plates (30) away from the third sleeve ring (29) is slidingly arranged in the vertical groove (24) of the wall scraping rod (23); The second stirring part comprises a fourth motor (31), the fourth motor (31) is fixedly connected with the top end of the other connecting top rod (21), one end of the output shaft of the fourth motor (31) is fixedly connected with a fourth rotating shaft (32), the other end of the fourth rotating shaft (32) is rotatably connected with the other connecting bottom rod (25), one end of the outer side wall of the fourth rotating shaft (32) is fixedly connected with a lifting frame (34), the other end of the lifting frame (34) is fixedly connected with a limiting block (35), the limiting block (35) is slidingly arranged in the vertical groove (24), the inner side wall bottom of the lifting frame (34) is rotatably connected with a flap (37) through two rotating shafts (36), one end of the inner side wall bottom of the lifting frame (34) away from the rotating shaft (36) is fixedly connected with a blocking strip (38), and the end of the flap (37) away from the rotating shaft (36) is overlapped with the blocking strip (38).

2. The raw material stirring device for coal mine filling mining and exploitation according to claim 1, characterized in that, The feeding and discharging part comprises a plurality of discharge ports (15) and a plurality of feeding ports (16), the plurality of discharge ports (15) are arranged on the bottom of the side wall of the stirring inner cylinder (1) and are arranged at equal intervals along the circumferential direction of the side wall of the stirring inner cylinder (1), and the plurality of feeding ports (16) are arranged on the top of the side wall of the stirring inner cylinder (1) and are arranged at equal intervals along the circumferential direction of the side wall of the stirring inner cylinder (1).

3. The raw material stirring device for coal mine filling mining and exploitation according to claim 1, characterized in that, The slurry lifting mechanism comprises a rotating driving part, the bottom end of the rotating driving part is fixedly connected with the supporting part, the top end of the rotating driving part is sealingly rotatably connected with the outer side wall of the stirring inner cylinder (1) and the inner side wall of the stirring outer cylinder (2), the top end of the rotating driving part is fixedly connected with a lifting spiral blade (14), and the lifting spiral blade (14) is rotatably arranged between the outer side wall of the stirring inner cylinder (1) and the inner side wall of the stirring outer cylinder (2).

4. The raw material stirring device for coal mine filling mining and exploitation according to claim 3, characterized in that, The rotating driving part comprises a support plate (9) horizontally arranged and fixedly connected with the support part at both ends, a first motor (10) fixedly connected with the support plate (9) at the top end, a connecting plate (11) fixedly connected with the output shaft of the first motor (10), a connecting block (12) fixedly connected with the top end of the connecting plate (11) at both ends, a sealing rotary ring (13) fixedly connected with the top end of the two connecting blocks (12), and a lifting spiral blade (14) fixedly connected with the top end of the sealing rotary ring (13).

5. The raw material stirring device for coal mine filling mining according to claim 1, characterized in that, The material and water adding part comprises a feeding hopper (5) and a water inlet pipe (6), and the bottom end of the feeding hopper (5) and the bottom end of the water inlet pipe (6) are fixedly communicated with the top end of the stirring inner cylinder (1).

6. The raw material stirring device for coal mine filling mining according to claim 1, characterized in that, The slurry discharging part comprises a discharging pipe (7) fixedly communicated with the bottom end of the stirring inner cylinder (1), and a valve (8) arranged on the discharging pipe (7).

7. The raw material stirring device for coal mine filling mining and exploitation according to claim 1, characterized in that, The support part comprises an outer fixed ring (3) fixedly connected with the bottom of the outer side wall of the stirring outer cylinder (2), and a plurality of support legs (4) fixedly connected with the bottom end of the outer fixed ring (3) and arranged along the outer fixed ring (3) at equal intervals in the circumferential direction.

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