A coal mill dynamic and static ring

Abstract

The invention discloses a coal mill moving and static ring, comprising a moving and static ring body, wherein the moving and static ring body comprises an isolating cylinder, wherein a rotating grinding disc is arranged inside the isolating cylinder; the horizontal gap width between the positioning static ring and the rotating moving ring can be known by analyzing the electrical signal through a processing structure, and when the horizontal gap width is greater than a preset value inside the processing structure, the processing structure will adjust the position of the positioning component through an adjusting element, so that the positioning component slowly descends a certain distance with the positioning static ring until the gap between the positioning static ring and the rotating moving ring meets the requirement, which not only solves a series of problems such as serious primary air leakage, reduced coal mill output, increased stone coal amount, etc. caused by increased gap between the positioning static ring and the rotating moving ring due to wear, but also prolongs the service life of the positioning static ring and the rotating moving ring, reduces the frequency of replacing the rotating moving ring and the positioning static ring, indirectly increases the production efficiency of the coal mill, and improves the practicability of the coal mill moving and static ring.

Description

Technical Field

[0001] The invention relates to the field of coal mills, and more particularly to a coal mill dynamic and static ring. Background Art

[0002] A medium-speed coal mill refers to a coal mill with an operating speed of 50 to 300 r / min. The motor drives the grinding disc to rotate through a reducer. The material falls from the feed port to the center of the grinding disc through the wind-locking feeder, and hot air enters the mill from the air inlet. As the grinding disc rotates, the material moves to the edge of the grinding disc under the action of centrifugal force, and is crushed by the grinding roller when passing through the annular groove on the grinding disc. The crushed material is blown up at the edge of the grinding disc by the primary wind that enters the grinding ring through the moving ring. Large particles fall directly onto the grinding disc and are crushed again. When the material in the air flow passes through the upper separator, the coarse powder falls from the cone bucket to the grinding disc and is re-grinded under the action of the rotating rotor. Qualified fine powder is discharged from the mill with the air flow and collected by the dust collecting device as the product. The static ring of the medium-speed coal mill is fixedly installed on the casing bracket, the moving ring is connected to the grinding disc and rotates together, and there is a certain gap between the moving and static rings.

[0003] The gaps between the existing moving and static rings mainly have two forms: vertical and curved. The curved gap can form a horizontal gap between the moving and static rings. This horizontal gap can reduce the gravel and coal falling into the wind chamber through the gap between the moving and static rings. At the same time, it can guide the primary wind passing through the gap between the moving and static rings to the moving ring outlet, participate in the disturbance of wind powder, and avoid direct damage to the cylinder wall in the vertical direction. However, during long-term use, the moving and static rings often suffer severe wear due to wind erosion and erosion by impurities such as gravel, iron slag, etc., resulting in an increase in the gap between the moving and static rings, causing a series of problems such as serious primary air leakage, reduced coal mill output, and increased gravel and coal. Therefore, it is urgent to design a moving and static ring of a coal mill. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The gaps between the existing moving and static rings in the prior art are mainly in two forms: vertical and bent. The bent gap can form a horizontal gap between the moving and static rings. This horizontal gap can reduce the gravel and coal falling into the wind chamber through the gap between the moving and static rings, and at the same time can guide the primary wind passing through the gap between the moving and static rings to the moving ring outlet, participate in the disturbance of wind powder, and avoid direct blowing damage to the cylinder wall in the vertical direction. However, during long-term use, the moving and static rings often suffer severe wear due to wind erosion and erosion by impurities such as gravel, iron slag, etc., resulting in an increase in the gap between the moving and static rings, causing a series of problems such as serious primary air leakage, reduced coal mill output, and increased gravel and coal. The purpose of the present invention is to provide a moving and static ring of a coal mill, which can well solve the problems raised in the background technology.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A coal mill dynamic and static ring, comprising a dynamic and static ring body, the dynamic and static ring body comprising an isolating cylinder, a rotating grinding disc is arranged inside the isolating cylinder, a rotating dynamic ring is sleeved outside the rotating grinding disc, the rotating dynamic ring is fixedly connected to the top surface of the rotating grinding disc, a positioning static ring is installed on the inner wall of the isolating cylinder, and the positioning static ring is sleeved outside the rotating dynamic ring;

[0009] The positioning static ring includes a lower sealing tube, which is movably inserted into the interior of the isolation tube and movably sleeved on the outside of the rotating ring. The outer side surface of the lower sealing tube is slidingly connected to the inner wall of the isolation tube. The top of the lower sealing tube is fixedly connected with a wear-resistant retaining ring, which is located above the rotating ring. There is a gap between the bottom surface of the wear-resistant retaining ring and the top surface of the rotating ring. A guide cone ring is fixedly inserted into the interior of the wear-resistant retaining ring. The top of the guide cone ring is fixedly connected to an upper sealing tube, and the upper sealing tube is slidingly connected to the inner wall of the isolation tube.

[0010] Preferably, it also includes a positioning component, which includes a positioning block, which is movably inserted in the space surrounded by the wear-resistant retaining ring, the guide cone ring and the inner wall of the isolation tube, the bottom surface of the positioning block is in contact with the top surface of the wear-resistant retaining ring, the inclined surface of the positioning block is in contact with the bottom surface of the guide cone ring, the left side of the positioning block is slidably connected to the inner wall of the isolation tube, a positioning groove is provided on the bottom surface of the positioning block, a positioning slide is slidably inserted inside the positioning groove, the bottom end of the positioning slide is fixedly connected to the top surface of the wear-resistant retaining ring, and the positioning slide extends along the diameter direction of the wear-resistant retaining ring.

[0011] Preferably, it also includes a detection mechanism, which includes a detection cavity, which is opened inside the positioning block, and the top surface of the inner cavity of the detection cavity is connected with a detection piston through a detection spring transmission, and the detection piston is slidably connected to the inner wall of the detection cavity, and a mounting hole is opened on the bottom surface of the inner cavity of the detection cavity, and the bottom end of the mounting hole is open and the opening is arranged on the bottom surface of the positioning block, and a through hole is opened on the bottom surface of the wear-resistant retaining ring, and the bottom end of the mounting hole is connected with the through hole, and a detection rod is movably inserted into the interior of the mounting hole, and the bottom end of the detection rod is movably inserted into the interior of the through hole, and the bottom end of the detection rod is provided with a chamfered surface, and the chamfered surface is flush with the bottom surface of the wear-resistant retaining ring, and the top end of the detection rod is connected to the bottom surface of the detection piston, and a limit retaining ring located above the detection piston is fixedly connected to the inner wall of the detection cavity, and the bottom surface of the limit retaining ring contacts the top surface of the detection piston, and a constant pressure tube is fixedly inserted on the top surface of the inner cavity of the detection cavity, and the other end of the constant pressure tube extends to the interior of the accommodating groove, and an accommodating groove is opened on the left side surface of the positioning block.

[0012] Preferably, it also includes a measuring component, which includes a measuring cavity, which is opened inside the positioning block and located on the left side of the detection cavity. A measuring groove located at the bottom of the measuring cavity is opened on the inner wall of the measuring cavity. A resistance strip is fixedly embedded in the measuring groove, and a pre-buried wire is fixedly connected to the bottom end of the resistance strip. The pre-buried wire is fixedly inserted in the positioning block and extends to the inside of the accommodating groove. The top surface of the inner cavity of the measuring cavity is connected to a displacement piston through a measuring spring transmission. The displacement piston is slidably inserted in the measuring cavity. A U-shaped conductive strip is fixedly inserted in the displacement piston. The end of the U-shaped conductive strip extends to the inside of the measuring groove and is slidably connected to the surface of the resistance strip. A linkage wire is fixedly connected to the top surface of the displacement piston. The other end of the linkage wire passes through the inside of the positioning block and extends to the inside of the detection cavity and is fixedly connected to the top surface of the detection piston.

[0013] Preferably, an adjustment element is also included, which includes a sealing groove, which is provided on the surface of the isolation cylinder, and a plug-in hole is provided on the inner wall of the sealing groove, which is connected to the internal cavity of the isolation cylinder, and a plug-in column is slidably inserted into the interior of the plug-in hole, and the right end face of the plug-in column is flush with the inner wall of the isolation cylinder, and the right end face of the plug-in column is in contact with the left end face of the positioning block, and the left end of the plug-in column is fixedly connected with a sealing cover plate, which is movably inserted into the interior of the sealing groove, and the sealing cover plate is fixed to the inner wall of the sealing groove by bolts, and a transfer tube is fixedly inserted on the left side face of the sealing cover plate, and one end of the transfer tube passes through the sealing cover plate and the plug-in column and extends to the interior of the accommodating groove and is connected to a constant pressure hose through a quick connector.

[0014] Preferably, the other end of the constant pressure hose is connected to the end of the constant pressure tube through a quick connector, a fixed electrical connector located at the bottom of the sealing cover is fixedly plugged into the left side surface of the sealing cover, a sealed wiring harness is fixedly connected to the right end of the fixed electrical connector, the right end of the sealed wiring harness extends to the interior of the accommodating groove, and a sub-wire in the sealed wiring harness is connected to the end of the pre-buried wire through a quick connector.

[0015] Preferably, a fixed support plate located at its bottom end is fixedly connected to the right side surface of the plug-in column, an electric telescopic cylinder is fixedly installed on the top surface of the fixed support plate, the electric telescopic cylinder is connected to another sub-line in the sealed wiring harness, a lifting plate is fixedly connected to the top of the electric telescopic cylinder, the top surface of the lifting plate is in contact with the top surface of the inner cavity of the accommodating groove, and a holding handle is fixedly connected to the left side surface of the sealing cover plate.

[0016] Preferably, it further comprises a processing structure, wherein the processing structure comprises an annular fixed flat box, which is fixedly sleeved on the outside of the isolation cylinder and located above the sealing groove.

[0017] Preferably, the other end of the transfer tube is connected to the annular fixed flat box through a quick connector, and an electromagnetic deflation component and an air pump are fixedly connected on the top surface of the annular fixed flat box, and the air pump is fixedly installed on the top surface of the annular fixed flat box, and an intelligent controller is fixedly installed on the top surface of the annular fixed flat box. A reinforcement strip is fixedly connected to the top surface of the annular fixed flat box, and a wire threading ring tube is fixedly inserted on the reinforcement strip, and the wire threading ring tube is sleeved on the outside of the isolation tube.

[0018] Preferably, a transfer cable is fixedly connected to the intelligent controller, the other end of the transfer cable extends to the inside of the wire threading ring tube and extends out from the bottom surface of the wire threading ring tube and is fixedly connected to a movable electric plug, which is fixedly inserted into the inside of the fixed electric connector.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The positioning assembly can be fixed by adjusting the element, the positioning static ring can be fixed by the positioning assembly, the processing structure is used to inflate the interior of the detection mechanism, so that the detection mechanism can detect the horizontal gap between the positioning static ring and the rotating moving ring, the distance information detected by the detection mechanism can be converted into an electrical signal by the measuring component, and the horizontal gap width between the positioning static ring and the rotating moving ring can be obtained by analyzing the electrical signal by the processing structure. When the horizontal gap width is greater than the preset value inside the processing structure, the processing structure will adjust the position of the positioning assembly through the adjusting element, so that the positioning assembly slowly descends a distance with the positioning static ring until the gap between the positioning static ring and the rotating moving ring meets the requirements, which not only solves a series of problems such as serious primary air leakage, reduced coal mill output, and increased stone coal amount caused by the increase in the gap between the positioning static ring and the rotating moving ring due to wear, but also prolongs the service life of the positioning static ring and the rotating moving ring, reduces the frequency of replacing the rotating moving ring and the positioning static ring, indirectly increases the production efficiency of the coal mill, and improves the practicality of the coal mill moving static ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 Cross-section at AA in the middle;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure;

[0025] Figure 4 For the present invention Figure 3 Structural diagram of the central positioning static ring;

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the adjusting element;

[0027] Figure 6 For the present invention Figure 4 Schematic diagram of the internal structure of the positioning component;

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the internal structure of the measuring component;

[0029] Figure 8 For the present invention Figure 6 Schematic diagram of the internal structure of the detection piston;

[0030] Fig. 9 For the present invention Figure 8 Cross-section view at the middle BB.

[0031] Description of the numbers in the figure:

[0032] 1. Dynamic and static ring body; 11. Isolation cylinder; 12. Rotating grinding disc; 13. Rotating dynamic ring; 14. Positioning static ring; 141. Lower sealing tube; 142. Wear-resistant retaining ring; 143. Guide cone ring; 144. Upper sealing tube; 145. Through hole; 2. Positioning assembly; 21. Positioning block; 22. Positioning slide groove; 23. Positioning slide bar; 24. Accommodating groove; 3. Detection mechanism; 31. Detection cavity; 32. Detection spring; 33. Detection piston; 331. Piston body; 332. Insertion groove; 333. Clamping cavity; 334. Clamping spring; 335. Clamping piston; 336. Bevel plug; 337. Triangular groove; 34. Mounting hole; 35. Detection rod; 36. Chamfered surface; 37. Limit retaining ring; 38. Constant pressure tube ; 4. Measuring component; 41. Measuring cavity; 42. Measuring groove; 43. Resistance strip; 44. Pre-buried wire; 45. Measuring spring; 46. Displacement piston; 47. U-shaped conductive strip; 48. Linkage line; 5. Adjusting element; 51. Sealing groove; 52. Plug hole; 53. Plug column; 54. Sealing cover plate; 55. Transfer tube; 56. Constant pressure hose; 57. Fixed electrical connector; 58. Sealing wiring harness; 59. Fixed support plate; 510. Electric telescopic cylinder; 511. Lifting plate; 512. Holding handle; 6. Processing structure; 61. Ring fixed flat box; 62. Electromagnetic deflation component; 63. Air pump; 64. Intelligent controller; 65. Reinforcement strip; 66. Threading ring tube; 67. Transfer cable; 68. Movable electrical plug. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-9 A coal mill dynamic and static ring, comprising a dynamic and static ring body 1, the dynamic and static ring body 1 comprising an isolating cylinder 11, a rotating grinding disc 12 is arranged inside the isolating cylinder 11, a rotating dynamic ring 13 is sleeved outside the rotating grinding disc 12, the rotating dynamic ring 13 is fixedly connected to the top surface of the rotating grinding disc 12, a positioning static ring 14 is installed on the inner wall of the isolating cylinder 11, and the positioning static ring 14 is sleeved outside the rotating dynamic ring 13;

[0035] The positioning static ring 14 includes a lower sealing tube 141, which is movably inserted into the interior of the isolation tube 11 and movably sleeved on the outside of the rotating ring 13. The outer side surface of the lower sealing tube 141 is slidingly connected to the inner wall of the isolation tube 11. The top of the lower sealing tube 141 is fixedly connected with a wear-resistant retaining ring 142. The wear-resistant retaining ring 142 is located above the rotating ring 13. There is a gap between the bottom surface of the wear-resistant retaining ring 142 and the top surface of the rotating ring 13. A guide cone ring 143 is fixedly inserted into the interior of the wear-resistant retaining ring 142. The top of the guide cone ring 143 is fixedly connected to an upper sealing tube 144. The upper sealing tube 144 is slidingly connected to the inner wall of the isolation tube 11.

[0036] It also includes a positioning component 2, which includes a positioning block 21. The positioning block 21 is movably inserted in the space surrounded by the wear-resistant retaining ring 142, the guide cone ring 143, and the inner wall of the isolation tube 11. The bottom surface of the positioning block 21 is in contact with the top surface of the wear-resistant retaining ring 142, the inclined surface of the positioning block 21 is in contact with the bottom surface of the guide cone ring 143, the left side surface of the positioning block 21 is slidably connected to the inner wall of the isolation tube 11, and a positioning groove 22 is provided on the bottom surface of the positioning block 21. A positioning slide bar 23 is slidably inserted inside the positioning groove 22, and the bottom end of the positioning slide bar 23 is fixedly connected to the top surface of the wear-resistant retaining ring 142, and the positioning slide bar 23 extends along the diameter direction of the wear-resistant retaining ring 142.

[0037] The detection mechanism 3 also includes a detection chamber 31, which is opened inside the positioning block 21. The top surface of the inner cavity of the detection chamber 31 is connected to a detection piston 33 through a detection spring 32. The detection piston 33 is slidably connected to the inner wall of the detection chamber 31. A mounting hole 34 is opened on the bottom surface of the inner cavity of the detection chamber 31. The bottom end of the mounting hole 34 is open and the opening is arranged on the bottom surface of the positioning block 21. A through hole 145 is opened on the bottom surface of the wear-resistant retaining ring 142. The bottom end of the mounting hole 34 is connected to the through hole 145. A detection rod 35 is movably inserted inside the mounting hole 34. The bottom end of the detection rod 35 is movably inserted into the inside of the through hole 145, and the bottom end of the detection rod 35 is provided with a chamfered surface 36, which is flush with the bottom surface of the wear-resistant retaining ring 142. The top end of the detection rod 35 is connected to the bottom surface of the detection piston 33, and a limit retaining ring 37 located above the detection piston 33 is fixedly connected to the inner wall of the detection cavity 31, and the bottom surface of the limit retaining ring 37 contacts the top surface of the detection piston 33. A constant pressure tube 38 is fixedly inserted on the top surface of the inner cavity of the detection cavity 31, and the other end of the constant pressure tube 38 extends to the inside of the accommodating groove 24. An accommodating groove 24 is opened on the left side surface of the positioning block 21.

[0038] It also includes a measuring component 4, which includes a measuring cavity 41. The measuring cavity 41 is opened inside the positioning block 21 and is located on the left side of the detection cavity 31. A measuring groove 42 is opened on the inner wall of the measuring cavity 41 and is located at the bottom thereof. A resistor strip 43 is fixedly embedded inside the measuring groove 42. A pre-buried wire 44 is fixedly connected to the bottom end of the resistor strip 43. The pre-buried wire 44 is fixedly inserted into the interior of the positioning block 21 and extends to the interior of the accommodating groove 24. A displacement piston 46 is connected to the top surface of the inner cavity of the measuring cavity 41 through a measuring spring 45. The displacement piston 46 is slidably inserted into the interior of the measuring cavity 41. A U-shaped conductive strip 47 is fixedly inserted into the interior of the displacement piston 46. The end of the U-shaped conductive strip 47 extends to the interior of the measuring groove 42 and is slidably connected to the surface of the resistor strip 43. A linkage wire 48 is fixedly connected to the top surface of the displacement piston 46. The other end of the linkage wire 48 passes through the interior of the positioning block 21 and extends to the interior of the detection cavity 31 and is fixedly connected to the top surface of the detection piston 33.

[0039] It also includes an adjusting element 5, which includes a sealing groove 51. The sealing groove 51 is opened on the surface of the isolation tube 11. A plug-in hole 52 is opened on the inner wall of the sealing groove 51. The plug-in hole 52 is connected to the internal cavity of the isolation tube 11. A plug-in column 53 is slidably inserted into the interior of the plug-in hole 52. The right end face of the plug-in column 53 is flush with the inner wall of the isolation tube 11, and the right end face of the plug-in column 53 is in contact with the left end face of the positioning block 21. The left end of the plug-in column 53 is fixedly connected with a sealing cover plate 54, which is movably inserted into the interior of the sealing groove 51. The sealing cover plate 54 is fixed to the inner wall of the sealing groove 51 by bolts. A transfer tube 55 is fixedly inserted on the left side face of the sealing cover plate 54. One end of the transfer tube 55 passes through the sealing cover plate 54 and the plug-in column 53 and extends to the interior of the accommodating groove 24 and is connected to a constant pressure hose 56 through a quick connector.

[0040] The other end of the constant pressure hose 56 is connected to the end of the constant pressure tube 38 through a quick connector. A fixed electrical connector 57 located at the bottom of the sealing cover plate 54 is fixedly inserted on the left side surface thereof. The right end of the fixed electrical connector 57 is fixedly connected to a sealing wiring harness 58. The right end of the sealing wiring harness 58 extends to the interior of the accommodating groove 24. A sub-wire in the sealing wiring harness 58 is connected to the end of the embedded wire 44 through a quick connector.

[0041] A fixed support plate 59 located at the bottom end is fixedly connected to the right side surface of the plug-in column 53, and an electric telescopic cylinder 510 is fixedly installed on the top surface of the fixed support plate 59. The electric telescopic cylinder 510 is connected to another sub-line in the sealing harness 58. A lifting plate 511 is fixedly connected to the top of the electric telescopic cylinder 510. The top surface of the lifting plate 511 is in contact with the top surface of the inner cavity of the accommodating groove 24. A holding handle 512 is fixedly connected to the left side surface of the sealing cover plate 54.

[0042] The processing structure 6 is also included. The processing structure 6 includes an annular fixed flat box 61 . The annular fixed flat box 61 is fixedly sleeved on the outside of the isolation cylinder 11 and is located above the sealing groove 51 .

[0043] The other end of the transfer tube 55 is connected to the annular fixed flat box 61 through a quick connector. The top surface of the annular fixed flat box 61 is fixedly connected with an electromagnetic deflation component 62 and an air pump 63. The air pump 63 is fixedly installed on the top surface of the annular fixed flat box 61. The top surface of the annular fixed flat box 61 is fixedly installed with an intelligent controller 64. The top surface of the annular fixed flat box 61 is fixedly connected with a reinforcement strip 65. The reinforcement strip 65 is fixedly plugged with a wire threading ring tube 66. The wire threading ring tube 66 is sleeved on the outside of the isolation tube 11.

[0044] An adapter cable 67 is fixedly connected to the intelligent controller 64 , and the other end of the adapter cable 67 extends to the inside of the wire threading ring tube 66 and extends out from the bottom surface of the wire threading ring tube 66 and is fixedly connected to a movable electrical plug 68 , which is fixedly plugged into the inside of the fixed electrical connector 57 .

[0045] Working principle:

[0046] When it is necessary to detect the gap between the top surface of the rotating ring 13 and the wear-resistant retaining ring 142, the intelligent controller 64 first controls the air pump 63 to work, and then the air pump 63 inflates the interior of the annular fixed flat box 61, and then the air pressure inside the annular fixed flat box 61 increases, and then the transfer tube 55, the constant pressure hose 56, the constant pressure tube 38, and the air pressure inside the detection chamber 31 connected to the annular fixed flat box 61 increase, and then the detection piston 33 moves downward with the detection rod 35 under the action of the pressure difference and pulls the detection spring 32, and then the detection spring 32 elastically stretches, and the elastic potential energy increases, and then the detection piston 33 pulls the linkage line 48, and then the linkage line 48 moves the displacement piston 46 upward, and then the displacement piston 46 moves upward with the U-shaped conductive strip 47 , then the two ends of the U-shaped conductive strip 47 slide on the surfaces of the two resistance strips 43, and then the total length of the resistance strips 43 connected to the circuit gradually increases, and then the current passing through the U-shaped conductive strip 47 gradually decreases, and then the intelligent controller 64 calculates the downward movement distance of the detection rod 35 according to the current passing through the U-shaped conductive strip 47, and then the intelligent controller 64 calculates the vertical movement distance of the detection rod 35 according to the inclination angle of the detection rod 35, and then the intelligent controller 64 measures the width of the horizontal gap between the wear-resistant retaining ring 142 and the top surface of the rotating ring 13 according to the vertical movement distance of the detection rod 35, and then the bottom surface of the chamfered surface 36 contacts the top surface of the rotating ring 13, and then the air pressure inside the annular fixed flat box 61 continues to rise, Then the intelligent controller 64 monitors the air pressure inside the annular fixed flat box 61 in real time. When the air pressure value inside the annular fixed flat box 61 reaches the preset value inside the intelligent controller 64, the intelligent controller 64 shuts down the air pump 63. Then the intelligent controller 64 determines the width value of the horizontal gap between the bottom surface of the wear-resistant retaining ring 142 and the top surface of the rotating ring 13 according to the distance of the detection rod 35 moving in the vertical direction. Then the intelligent controller 64 compares the width value with the preset value inside. When the rotating ring 13 and the positioning static ring 14 are worn, the width value is greater than the preset value inside the intelligent controller 64. Then the intelligent controller 64 calculates the difference between the width value and the preset value inside, and then the intelligent controller 64 controls the electromagnetic degassing component 6 2 is opened and exhausted, and then the high-pressure gas inside the annular fixed flat box 61, the transfer tube 55, the constant pressure hose 56, the constant pressure tube 38, and the detection chamber 31 is gradually discharged through the electromagnetic venting component 62, and the air pressure is reduced. Then the detection piston 33 moves upward with the detection rod 35 under the elastic tension of the detection spring 32 until the top surface of the detection piston 33 contacts the bottom surface of the limit retaining ring 37. At this time, the chamfered surface 36 is flush with the bottom surface of the wear-resistant retaining ring 142. At the same time, the linkage line 48 gradually relaxes, and then the displacement piston 46 moves downward under the elastic force of the measuring spring 45. Then the length of the resistor strip 43 connected to the circuit is gradually shortened, and the current becomes larger. Then the intelligent controller 64 detects that the air pressure inside the annular fixed flat box 61 drops to one atmospheric pressure.Afterwards, the intelligent controller 64 controls the electromagnetic deflation component 62 to shut down, and controls the U-shaped conductive strip 47 to cut off power. Then, the intelligent controller 64 controls the electric telescopic cylinder 510 to gradually shorten according to the above difference. Then, the electric telescopic cylinder 510 gradually moves downward by supporting the positioning static ring 14 through the lifting plate 511 and the positioning block 21 until the shortened value of the electric telescopic cylinder 510 is consistent with the above difference. At this time, the horizontal gap between the bottom surface of the wear-resistant retaining ring 142 and the top surface of the rotating ring 13 reaches the preset value inside the intelligent controller 64, so as to achieve the purpose of adjusting the horizontal gap between the bottom surface of the wear-resistant retaining ring 142 and the top surface of the rotating ring 13. When the rotating ring 13 and the positioning static ring 14 are severely worn, the rotating ring 13 and the positioning static ring 14 need to be replaced. When the electric telescopic cylinder 510 is shortened to the shortest state through the intelligent controller 64, the positioning static ring 14 is lowered and sits on the top surface of the rotating dynamic ring 13 through the wear-resistant retaining ring 142, and then the movable electric plug 68 is separated from the fixed electric connector 57, and the adapter tube 55 is separated from the annular fixed flat box 61, and then the sealing cover plate 54 is removed, and then the sealing cover plate 54 is pulled outward by holding the handle 512, and then the sealing cover plate 54 is moved outward with the electric telescopic cylinder 510 through the plug-in column 53 and the fixed support plate 59, and then the electric telescopic cylinder 510 passes through the plug-in hole 52 and the sealing groove 51 and moves out, and then the constant pressure hose 56 is disconnected from the adapter tube 55, the embedded wire 44 is disconnected from the sealing harness 58, and then the plug-in column is connected. 53, the sealing cover plate 54, the fixed support plate 59, and the electric telescopic cylinder 510 are removed and placed on the open ground, and then a lifting force is applied to the positioning static ring 14 to lift the positioning static ring 14 out of the interior of the isolation tube 11, and then the positioning static ring 14 is placed on the open ground, and then the rotating ring 13 is disassembled and hoisted to the open ground, and then a new rotating ring 13 is taken out and hoisted, and then the new rotating ring 13 is fixed on the rotating grinding disc 12, and then the constant pressure tube 38 is inflated through the constant pressure hose 56, and then the bottom end of the detection rod 35 is exposed from the through hole 145, and then the bottom end of the detection rod 35 is held and a rotational force is applied to it, and then the detection rod 35 rotates with the triangular groove 337, and then the inclined plug 336 is in The inner wall of the triangular groove 337 exerts pressure on the inclined plug 336, and then the inclined plug 336 moves into the interior of the card cavity 333, and then the end of the inclined plug 336 slides onto the surface of the detection rod 35, and then a downward pulling force is applied to the detection rod 35, and then the detection rod 35 is pulled out, and then the card piston 335 moves and resets the inclined plug 336 to the inside of the plug-in groove 332 under the action of the elastic force of the card spring 334, and then the detection rod 35 is dropped on the open space, and then an outward pulling force is applied to the positioning assembly 2, and then the positioning assembly 2 slides out from between the wear-resistant retaining ring 142 and the guide cone ring 143, and then the positioning assembly 2 is moved to the side of the newly taken positioning static ring 14,Then align the positioning groove 22 with the positioning slide bar 23 on the positioning stationary ring 14, then insert the positioning assembly 2 between the wear-resistant retaining ring 142 and the guide cone ring 143, and at the same time insert the positioning slide bar 23 into the positioning groove 22 until the positioning block 21 contacts the bottom surface of the guide cone ring 143, at this time, the through hole 145 is aligned with the mounting hole 34, then take out a new detection rod 35, and then make the top end of the detection rod 35 pass through the through hole 145 and the mounting hole 34 and insert it into the plug-in groove 332, then apply an upward force to the detection rod 35, and then the top surface of the detection rod 35 applies pressure to the inclined surface of the inclined plug 336, and then The rear bevel plug 336 moves toward the inside of the card connection cavity 333, and then the end of the bevel plug 336 slides on the surface of the detection rod 35, and then the end surface of the top of the detection rod 35 contacts the top surface of the inner cavity of the plug groove 332, and then a rotational force is applied to the detection rod 35 to make the chamfered surface 36 parallel to the bottom surface of the wear-resistant retaining ring 142. At this time, the bevel plug 336 is aligned with the triangular groove 337, and then the bevel plug 336 is inserted into the triangular groove 337 to lock the detection rod 35, and then the gas in the constant pressure hose 56 is released, and then the detection piston 33 moves upward with the detection rod 35 under the action of the elastic force of the detection spring 32. Move until the detection piston 33 contacts the limit retaining ring 37. At this time, the chamfered surface 36 is flush with the bottom surface of the wear-resistant retaining ring 142. Then, the positioning static ring 14 is hoisted to the inside of the isolation cylinder 11 and slowly lowered. Then, the accommodating groove 24 is aligned with the plug hole 52. Then, the constant pressure hose 56 is connected to the transfer tube 55, and the embedded wire 44 is connected to the sealing harness 58. Then, the fixed support plate 59 and the electric telescopic cylinder 510 are inserted into the accommodating groove 24 through the sealing groove 51 and the plug hole 52. Then, the plug column 53 is inserted into the plug hole 52, and the sealing cover plate 54 is inserted into the sealing groove 51. Then, the sealing cover plate 54 is bolted to the isolation cylinder 11. The cylinder 11 is fixed together, and then the transfer tube 55 is connected to the annular fixed flat box 61, and the movable electric plug 68 is inserted into the fixed electric connector 57. Then the electric telescopic cylinder 510 is extended by the intelligent controller 64, and then the lifting plate 511 is pressed against the top surface of the inner cavity of the accommodating groove 24. Then the positioning block 21 and the positioning static ring 14 are fixed by the electric telescopic cylinder 510. Then the gap adjustment function is turned on once by the intelligent controller 64. After the adjustment is completed, the gap width between the bottom surface of the new wear-resistant retaining ring 142 and the top surface of the new rotating ring 13 reaches the preset value inside the intelligent controller 64. At this point, the replacement is completed.

[0047] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A coal mill dynamic and static ring, comprising a dynamic and static ring body (1), characterized in that: The moving and stationary ring body (1) comprises an isolating cylinder (11), a rotating grinding disc (12) is arranged inside the isolating cylinder (11), a rotating moving ring (13) is sleeved outside the rotating grinding disc (12), the rotating moving ring (13) is fixedly connected to the top surface of the rotating grinding disc (12), a positioning stationary ring (14) is installed on the inner wall of the isolating cylinder (11), and the positioning stationary ring (14) is sleeved outside the rotating moving ring (13); The positioning static ring (14) comprises a lower sealing tube (141), which is movably inserted into the interior of the isolation tube (11) and movably sleeved on the exterior of the rotating ring (13), the outer side surface of the lower sealing tube (141) is slidably connected to the inner wall of the isolation tube (11), the top of the lower sealing tube (141) is fixedly connected with a wear-resistant retaining ring (142), the wear-resistant retaining ring (142) is located above the rotating ring (13), and there is a gap between the bottom surface of the wear-resistant retaining ring (142) and the top surface of the rotating ring (13), the interior of the wear-resistant retaining ring (142) is fixedly inserted with a guide cone ring (143), the top of the guide cone ring (143) is fixedly connected with an upper sealing tube (144), and the upper sealing tube (144) is slidably connected to the inner wall of the isolation tube (11); The invention also comprises a positioning assembly (2), wherein the positioning assembly (2) comprises a positioning block (21), the positioning block (21) is movably inserted in a space surrounded by a wear-resistant retaining ring (142), a guide cone ring (143) and an inner wall of an isolating tube (11), the bottom surface of the positioning block (21) is in contact with and connected to the top surface of the wear-resistant retaining ring (142), the inclined surface of the positioning block (21) is in contact with and connected to the bottom surface of the guide cone ring (143), the left side surface of the positioning block (21) is slidably connected to the inner wall of the isolating tube (11), and a positioning slide groove (22) is provided on the bottom surface of the positioning block (21). A positioning slide bar (23) is slidably inserted into the interior of the positioning slide groove (22), the bottom end of the positioning slide bar (23) is fixedly connected to the top surface of the wear-resistant retaining ring (142), and the positioning slide bar (23) extends along the diameter direction of the wear-resistant retaining ring (142); and also includes a detection mechanism (3), the detection mechanism (3) includes a detection cavity (31), the detection cavity (31) is arranged inside the positioning block (21), the top surface of the inner cavity of the detection cavity (31) is connected to a detection piston (33) through a detection spring (32), and the detection piston (33) and the detection cavity (31) are connected to each other. The inner wall is slidably connected, a mounting hole (34) is provided on the bottom surface of the inner cavity of the detection cavity (31), the bottom end of the mounting hole (34) is open and the opening is provided on the bottom surface of the positioning block (21), a through hole (145) is provided on the bottom surface of the wear-resistant retaining ring (142), the bottom end of the mounting hole (34) is connected to the through hole (145), a detection rod (35) is movably inserted in the interior of the mounting hole (34), the bottom end of the detection rod (35) is movably inserted in the interior of the through hole (145), and a chamfered surface (36) is provided at the bottom end of the detection rod (35), and the chamfered surface (36) is flush with the bottom surface of the wear-resistant retaining ring (142), the top end of the detection rod (35) is connected to the bottom surface of the detection piston (33), the inner wall of the detection chamber (31) is fixedly connected with a limit retaining ring (37) located above the detection piston (33), the bottom surface of the limit retaining ring (37) is in contact with the top surface of the detection piston (33), a constant pressure tube (38) is fixedly inserted on the top surface of the inner cavity of the detection chamber (31), and the other end of the constant pressure tube (38) extends to the inside of the accommodating groove (24), and an accommodating groove (24) is opened on the left side surface of the positioning block (21).

2. A coal mill moving and stationary ring according to claim 1, characterized in that: The measuring component (4) also includes a measuring cavity (41), the measuring cavity (41) is opened inside the positioning block (21) and is located on the left side of the detection cavity (31), the inner wall of the measuring cavity (41) is opened with a measuring groove (42) located at the bottom thereof, a resistance strip (43) is fixedly embedded inside the measuring groove (42), the bottom end of the resistance strip (43) is fixedly connected with a pre-buried wire (44), the pre-buried wire (44) is fixedly inserted into the inside of the positioning block (21) and extends to the inside of the accommodating groove (24), and the top surface of the inner cavity of the measuring cavity (41) is formed by a measuring groove (42) and a measuring groove (42) is formed on the inner wall of the measuring cavity (41). The measuring spring (45) is transmission-connected with a displacement piston (46), which is slidably inserted into the measuring cavity (41), and a U-shaped conductive strip (47) is fixedly inserted into the interior of the displacement piston (46), and the end of the U-shaped conductive strip (47) extends into the interior of the measuring groove (42) and is slidably connected to the surface of the resistance strip (43), and a linkage line (48) is fixedly connected to the top surface of the displacement piston (46), and the other end of the linkage line (48) passes through the interior of the positioning block (21) and extends into the interior of the detection cavity (31) and is fixedly connected to the top surface of the detection piston (33).

3. A coal mill moving and stationary ring according to claim 2, characterized in that: The adjusting element (5) further comprises an adjusting element (5), wherein the adjusting element (5) comprises a sealing groove (51), the sealing groove (51) being formed on the surface of the isolating tube (11), a plug hole (52) being formed on the inner wall of the sealing groove (51), the plug hole (52) being communicated with the inner cavity of the isolating tube (11), a plug column (53) being slidably plugged into the plug hole (52), the right end face of the plug column (53) being flush with the inner wall of the isolating tube (11), the right end face of the plug column (53) being in contact with the left end face of the positioning block (21), and the plug hole (52) being connected with the inner cavity of the isolating tube (11). The left end of the plug-in column (53) is fixedly connected with a sealing cover plate (54), and the sealing cover plate (54) is movably plugged into the inside of the sealing groove (51). The sealing cover plate (54) is fixed to the inner wall of the sealing groove (51) by bolts. A transfer tube (55) is fixedly plugged into the left side surface of the sealing cover plate (54). One end of the transfer tube (55) passes through the sealing cover plate (54) and the plug-in column (53) and extends to the inside of the accommodating groove (24) and is connected to a constant pressure hose (56) through a quick connector.

4. The coal mill moving and stationary ring according to claim 3, characterized in that: The other end of the constant pressure hose (56) is connected to the end of the constant pressure tube (38) through a quick connector. A fixed electrical connector (57) located at the bottom of the sealing cover plate (54) is fixedly plugged on the left side surface. The right end of the fixed electrical connector (57) is fixedly connected to a sealing harness (58). The right end of the sealing harness (58) extends to the inside of the accommodating groove (24). A sub-wire in the sealing harness (58) is connected to the end of the pre-buried wire (44) through a quick connector.

5. The coal mill moving and stationary ring according to claim 4, characterized in that: The right side surface of the plug-in column (53) is fixedly connected to a fixed support plate (59) located at its bottom end, the top surface of the fixed support plate (59) is fixedly installed with an electric telescopic cylinder (510), the electric telescopic cylinder (510) is connected to another sub-line in the sealing harness (58), the top of the electric telescopic cylinder (510) is fixedly connected to a lifting plate (511), the top surface of the lifting plate (511) is in contact with the top surface of the inner cavity of the accommodating groove (24), and the left side surface of the sealing cover plate (54) is fixedly connected to a holding handle (512).

6. The coal mill moving and stationary ring according to claim 5, characterized in that: It also comprises a processing structure (6), wherein the processing structure (6) comprises an annular fixed flat box (61), wherein the annular fixed flat box (61) is fixedly sleeved on the outside of the isolation cylinder (11) and is located above the sealing groove (51).

7. The coal mill moving and stationary ring according to claim 6, characterized in that: The other end of the transfer tube (55) is connected to the annular fixed flat box (61) through a quick connector. An electromagnetic deflation component (62) and an air pump (63) are fixedly connected on the top surface of the annular fixed flat box (61). The air pump (63) is fixedly installed on the top surface of the annular fixed flat box (61). An intelligent controller (64) is fixedly installed on the top surface of the annular fixed flat box (61). A reinforcement strip (65) is fixedly connected to the top surface of the annular fixed flat box (61). A threading ring tube (66) is fixedly plugged into the reinforcement strip (65). The threading ring tube (66) is sleeved on the outside of the isolation tube (11).

8. The coal mill moving and stationary ring according to claim 7, characterized in that: The intelligent controller (64) is fixedly connected to a transfer cable (67), the other end of which extends into the interior of the wire threading ring tube (66) and extends out from the bottom surface of the wire threading ring tube (66) and is fixedly connected to a movable electric plug (68), which is fixedly plugged into the interior of the fixed electric connector (57).

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