A vertical coal mill slagging device

Abstract

The application discloses a vertical coal mill slag discharging device and belongs to the technical field of steelmaking devices, characterized in that the left end of a chassis is hinged to the left ends of two first sliding rails, the right end of the chassis is fixedly connected to two second sliding rails, the second sliding rails are connected to the chassis at a certain angle, the two sides of the chassis are respectively hinged to the lower ends of two supporting plates, the upper ends of the two supporting plates are connected through a supporting rod, the supporting rod is placed at the lower ends of the two first sliding rails, the first sliding rails are parallel to the ground, the supporting plates are connected to the left ends of tensile springs, the right ends of the tensile springs are connected to the chassis, a clamping plate is arranged on the chassis and is installed at the right end of the supporting plate, the lower end of the chassis is hinged to a limiting plate, the upper end of the limiting plate is provided with a limiting groove, the supporting plate is provided with a first limiting shaft, and the lower end of the right end of the second sliding rail is connected to a baffle. Compared with the prior art, the vertical coal mill slag discharging device has the characteristics of simple structure and reasonable design.

Description

TECHNICAL FIELD

[0001] The application is a divisional application of the invention patent "Full-closed environmental protection slag discharging device of vertical coal mill" (application number: 2018111520544), and relates to a slag discharging device, in particular to a device suitable for discharging slag of a coal mill. BACKGROUND

[0002] The coal mill is a machine for crushing and grinding coal into coal powder, and it is an important auxiliary equipment of the coal powder furnace. When the vertical coal mill is running, dust and particulate matter will be generated in the space below the static ring, and need to be discharged and treated. The original device is an open slag discharging system, which has the following defects: ① a large amount of dust will be generated during normal slag discharging, which will affect the surrounding environment and does not meet the environmental protection requirements; ② the operation personnel will inhale dust, which will affect their health; ③ the original device needs to be dragged out of the placement point, and then a forklift is used for transportation, which is extremely inconvenient to operate. SUMMARY

[0003] The technical task of the application is to provide a device suitable for discharging slag of a coal mill in view of the defects of the prior art.

[0004] The technical scheme that the application solves the technical problems is: a vertical coal mill slag discharging device, characterized in that: a wheeled slag box, first sliding rails, second sliding rails, a chassis, support plates, support rods and a sealing valve; the left end of the chassis is hingedly connected with the left ends of the first sliding rails, and the right end of the chassis is fixedly connected with the second sliding rails; the second sliding rails are connected with the chassis at a certain angle; the two sides of the chassis are hingedly connected with the lower ends of the support plates, the upper ends of the two support plates are connected through the support rods, the support rods are placed at the lower ends of the first sliding rails, so that the first sliding rails are parallel to the ground; the support plates are connected with the left ends of the extension springs, and the right ends of the extension springs are connected with the chassis; a clamping plate is arranged on the chassis and is mounted at the right end of the support plate; the chassis is hingedly connected with the lower end of a limiting plate, the upper end of the limiting plate is provided with a limiting groove, and the support plate is provided with a first limiting shaft; the lower end of the right end of the second sliding rail is connected with a baffle, the two sides of the wheeled slag box are respectively provided with two wheels, the outer side of the wheel is provided with an annular groove, and the first sliding rail is placed in the annular groove of the wheel; the lower end of the right end wall of the wheeled slag box is provided with a rectangular slag discharging hole, the upper end of the rectangular slag discharging hole of the wheeled slag box is provided with a rectangular cavity, a first slag blocking plate is arranged at the rectangular slag discharging hole of the wheeled slag box, a partition plate is arranged in the rectangular cavity of the wheeled slag box, the partition plate is provided with two through holes, the first slag blocking plate is connected with the lower ends of two first guide rods, the upper ends of the first guide rods are rotatably connected with a positioning disc through the through holes of the partition plate, the outer side of the first guide rod is sleeved with a first compression spring, the lower end of the first compression spring is connected with the partition plate, and the upper end of the first compression spring is connected with the positioning disc, the two side walls of the wheeled slag box are respectively provided with L-shaped through holes and rectangular cavities, the positioning disc is connected with one end of a positioning plate, the other end of the positioning plate passes through the horizontal hole of the L-shaped through hole and is exposed outside the wheeled slag box, and when the positioning plate is placed in the horizontal hole of the L-shaped through hole, the first compression spring is compressed; the right end of the second sliding rail is connected with a limiting rod perpendicularly, the wheeled slag box is provided with a cavity, the upper end of the wheeled slag box is provided with a slag inlet pipe, the slag inlet pipe is communicated with the cavity of the wheeled slag box, the upper end of the slag inlet pipe is provided with an annular groove, the upper end of the slag inlet pipe is connected with a vertical pipe of a curved joint through a sealing valve, the vertical pipe of the curved joint is connected with a slag discharging port of a coal mill, and the sealing valve comprises a fixed plate, a sleeve pipe, a connecting pipe and a second compression spring.The lower end of the outer sleeve is provided with an annular groove, the upper end of the connecting pipe is inserted into the annular groove of the outer sleeve, the upper end of the connecting pipe is connected with the top of the annular groove of the outer sleeve through a second compression spring, the lower end of the connecting pipe is inserted into the annular groove of the slag inlet pipe, the left end of the second guide rod is fixedly connected with the positioning rod, the outer side of the second guide rod is sleeved with a third compression spring, the left end of the third compression spring is connected with the positioning rod, and the right end is connected with the connecting plate; the rotating shaft is connected between the two side support plates, the rotating shaft is hinged with the bending part of the L-shaped plate, the L-shaped plate is connected with the rotating shaft through a torsion spring, one end of the torsion spring is connected with the L-shaped plate, and the other end is connected with the rotating shaft; the vertical plate of the L-shaped plate is supported on the left end of the positioning rod by the torsion spring; the side support plate is provided with a rectangular guide through hole, the pressing rod is placed on the upper end of the horizontal plate of the L-shaped plate, the two ends of the pressing rod pass through the rectangular guide through hole of the side support plate and are connected with the connecting rods, and the two connecting rods are connected through a pull rod; the side support plate is provided with an ear plate, the ear plate is provided with a guide hole, the lower end of the third guide rod passes through the guide hole of the ear plate and is connected with the first limiting block, the lower end of the first limiting block is provided with an inclined surface, the first limiting block and the ear plate are connected through a fourth compression spring, the connecting rod is provided with a second limiting block, the second limiting block is provided with an inclined surface, and the inclined surfaces of the first limiting block and the second limiting block are oppositely arranged; the outer wall of the connecting pipe is provided with two connecting shafts, the two sides of the outer sleeve are hingedly connected with a wire wheel, one end of the connecting shaft is connected with a traction line, and the other end of the traction line passes around the wire wheel and is connected with the pressing rod.

[0005] The lower end of the connecting pipe is provided with a limiting ring, and the limiting ring is placed on the upper end of the slag inlet pipe.

[0006] The side wall of the wheel type slag box is provided with an observation hole, and the observation hole is provided with a glass plate.

[0007] The first sliding rail is provided with a positioning block.

[0008] Compared with the prior art, the present application has the following outstanding beneficial effects:

[0009] 1. Using the device can make the dust emission of the coal mill reach the standard, and create a good working environment;

[0010] 2. Using the device, the slag discharge of the coal mill is smooth, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of example 1.

[0012] Figure 2 It is Figure 1 A partial enlarged view of part A in figure 1.

[0013] Figure 3 is Figure 1 a partial enlarged view of part B in FIG. 1;

[0014] Figure 4 is a structural schematic diagram of the sealed valve in Example 1;

[0015] Figure 5 is a structural schematic diagram of the wheel type residue box part in Example 2;

[0016] Figure 6 is a structural schematic diagram of Example 3;

[0017] Figure 7 is Figure 6 a partial enlarged view of part C in FIG. 1. DETAILED DESCRIPTION

[0018] The present application is further illustrated below in conjunction with the drawings and specific embodiments of the present application.

[0019] As shown in FIG. 1, the wheel type residue box 3, the first slide rail 2, the second slide rail 21, the chassis 1, the support plate 17, the support rod and the sealed valve are included in Example 1. Figures 1-4 The left end of the chassis 1 is hinged to the left end of the two first slide rails 2, and the right end of the chassis 1 is fixedly connected to the two second slide rails 21. The second slide rail 21 is connected to the chassis 1 at a certain angle. The two sides of the chassis 1 are respectively hinged to the lower end of the two support plates 17, and the upper end of the two support plates 17 is connected by the support rod. The support rod is placed at the lower end of the two first slide rails 2, so that the first slide rail 2 is parallel to the ground. The support plate 17 is connected to the left end of the extension spring 19, and the right end of the extension spring 19 is connected to the chassis 1. The upper end of the support plate 17 is connected to the handle 15. A clamping plate 20 is arranged on the chassis 1, and the clamping plate 20 is arranged at the right end of the support plate 17, which can limit the right rotation of the support plate 17.

[0020] The chassis 1 is hinged to the lower end of the limiting plate 11, the upper end of the limiting plate 11 is provided with a limiting slot, and the support plate 17 is provided with a first limiting shaft 16. When the support plate 17 and the limiting plate 11 are rotated, the first limiting shaft 16 can be placed in the limiting slot of the limiting plate 11.

[0021] The lower end of the right end of the second slide rail 21 is connected to the baffle 18. When the support plate 17 is rotated and the support rod is no longer on the lower end of the first slide rail 2, the first slide rail 2 is rotated, the first slide rail 2 is placed on the baffle 18 of the second slide rail 21, and the first slide rail 2 and the second slide rail 21 form a straight line.

[0022]

[0023] ​The wheel type cinder box 3 is provided with two wheels 12 on both sides, and the wheels 12 are provided with annular grooves, and the first slide rail 2 is placed in the annular grooves of the wheels 12. The lower end of the right end wall of the wheel type cinder box 3 is provided with a rectangular cinder discharging hole, the upper end of the rectangular cinder discharging hole is provided with a rectangular cavity, a first cinder blocking plate 13 is installed at the rectangular cinder discharging hole of the wheel type cinder box 3, a partition plate is arranged in the rectangular cavity of the wheel type cinder box 3, two through holes are arranged on the partition plate, the first cinder blocking plate 13 is connected with the lower ends of two first guide rods 14, the upper ends of the first guide rods 14 are rotatably connected with a positioning disc 24 through the through holes of the partition plate, the outer sides of the first guide rods 14 are sleeved with first compression springs 26, the lower ends of the first compression springs 26 are connected with the partition plate, and the upper ends of the first compression springs 26 are connected with the positioning disc 24, L-shaped through holes and rectangular cavities are arranged on the side walls of the wheel type cinder box 3, one end of the positioning disc 24 is connected with a positioning plate 25, the other end of the positioning plate 25 passes through the horizontal holes of the L-shaped through holes and is exposed outside the wheel type cinder box 3, and when the positioning plate 25 is placed in the horizontal holes of the L-shaped through holes, the first compression springs 26 are compressed.

[0024] The right end of the second slide rail 21 is connected with a limiting rod 22 in a perpendicular mode, when the right end of the wheel type cinder box 3 moves to the position of the limiting rod 22, the limiting rod 22 pushes the positioning plate 25 to make the positioning disc 24 rotate, the positioning plate 25 moves from the horizontal holes to the vertical holes of the L-shaped through holes, the first compression springs 26 relax, the first cinder blocking plate 13 rises, and the cinder in the wheel type cinder box 3 is discharged.

[0025] The wheel type cinder box 3 is provided with a cavity, the upper end of the wheel type cinder box 3 is provided with an ash inlet pipe 4, the ash inlet pipe 4 is communicated with the cavity of the wheel type cinder box 3, and the upper end of the ash inlet pipe 4 is provided with an annular groove. The upper end of the ash inlet pipe 4 is connected with a vertical pipe of a curved joint 10 through a sealing valve, and the vertical pipe of the curved joint 10 is connected with a cinder discharging port of a coal mill.

[0026] The sealing valve comprises a fixed plate 34, an outer sleeve 8, a connecting pipe 7 and a second compression spring 23, the fixed plate 34 is provided with a circular through hole, the outer sleeve 8 is fixedly connected with the fixed plate 34, the outer sleeve 8 is coaxial with the circular through hole of the fixed plate 34, the right end of the fixed plate 34 is provided with a rectangular sliding groove which is communicated with the circular through hole, the right end of the fixed plate 34 is fixedly connected with two side support plates 27, the two side support plates 27 are connected through a connecting plate 38, the connecting plate 38 is provided with a guide through hole, a sealing plate 35 is placed at the right end of the rectangular sliding groove of the fixed plate 34, the left end of the sealing plate 35 is connected with the left end of a second guide rod 60, and the right end of the second guide rod 60 passes through the guide through hole of the connecting plate 38.

[0027] The lower end of the outer sleeve 8 is provided with an annular groove, the upper end of the connecting pipe 7 is inserted into the annular groove of the outer sleeve 8, and the upper end of the connecting pipe 7 is connected with the top of the annular groove of the outer sleeve 8 through a second compression spring 23, the lower end of the connecting pipe 7 is inserted into the annular groove of the slag inlet pipe 4, and the lower end of the connecting pipe 7 is provided with a limiting ring 5, and the limiting ring 5 is placed on the upper end of the slag inlet pipe 4.

[0028] The left end of the second guide rod 60 is fixedly connected with the positioning rod 36, the outer side of the second guide rod 60 is sleeved with a third compression spring 37, the left end of the third compression spring 37 is connected with the positioning rod 36, and the right end is connected with a connecting plate 38. The two side support plates 27 are connected with a rotating shaft, the rotating shaft is hinged with the bending part of an L-shaped plate 28, the L-shaped plate 28 is connected with the rotating shaft through a torsion spring, one end of the torsion spring is connected with the L-shaped plate 28, and the other end is connected with the rotating shaft. The torsion spring supports the vertical plate of the L-shaped plate 28 on the left end of the positioning rod 36. The side support plate 27 is provided with a rectangular guide through hole, the pressing rod 39 is placed on the upper end of the horizontal plate of the L-shaped plate 28, the two ends of the pressing rod 39 pass through the rectangular guide through holes of the side support plates 27 and are connected with connecting rods 40, and the two connecting rods 40 are connected through a pull rod 41.

[0029] The side support plate 27 is provided with an ear plate, the ear plate is provided with a guide hole, the lower end of the third guide rod 32 passes through the guide hole of the ear plate and is connected with the first limiting block 30, the lower end of the first limiting block 30 is provided with an inclined surface, the first limiting block 30 is connected with the ear plate through a fourth compression spring 31, the connecting rod 40 is provided with a second limiting block 29, the second limiting block 29 is provided with an inclined surface, and the inclined surfaces of the first limiting block 30 and the second limiting block 29 are oppositely arranged. When the pull rod 41 is pulled, the inclined surface of the first limiting block 30 is supported on the inclined surface of the second limiting block 29, so that the second limiting block 29 rises, when the second limiting block 29 moves to the right end of the first limiting block 30, the fourth compression spring 31 relaxes, and the first limiting block 30 is blocked at the left end of the second limiting block 29. The upper ends of the two third guide rods 32 are connected through a pull plate 33.

[0030] The outer wall of the connecting pipe 7 is provided with two connecting shafts 6, the two sides of the outer sleeve 8 are hinged with a wire wheel 9 respectively, one end of the connecting shaft 6 is connected with a traction line, and the other end of the traction line passes through the wire wheel 9 and is connected with the pressing rod 39. When the pull rod 41 is pulled to the right, the connecting pipe 7 can be driven to move upward through the traction line, so that the connecting pipe 7 is separated from the slag inlet pipe 4.

[0031] The side wall of the wheel type slag box 3 is provided with an observation hole, and a glass plate is installed at the observation hole, so that the material level in the wheel type slag box 3 can be conveniently observed.

[0032] The first slide rail 2 is provided with a positioning block, when the wheels 12 of the wheel type slag box 3 move to the position of the positioning block, the connecting pipe 7 can be connected with the slag inlet pipe 4.

[0033] The operation process is as follows: when the wheel type slag box 3 needs to be discharged, the pull rod 41 is pulled to the right, the pull rod 41 drives the pressing rod 39 to move to the right, the pressing rod 39 no longer abuts against the horizontal plate of the L-shaped plate 28, the third compression spring 37 relaxes, the sealing plate 35 moves to the left, and the through hole of the fixed plate 34 is blocked. At the same time of pulling the pull rod 41 to the right, the pull rod 41 drives the connecting pipe 7 to move upward through the traction line, so that the connecting pipe 7 is separated from the slag inlet pipe 4. When the support plate 17 is rotated and the support rod no longer abuts against the lower end of the first slide rail 2, the first slide rail 2 is rotated, the first slide rail 2 is placed on the baffle 18 of the second slide rail 21, the first slide rail 2 and the second slide rail 21 form a straight line, the first limiting shaft 16 is placed in the limiting groove of the limiting plate 11, and the support plate 17 is fixed. The wheel type slag box 3 slides to the position of the limiting rod 22 at the right end of the second slide rail 21, the limiting rod 22 drives the positioning plate 25 to rotate, the positioning plate 25 moves from the horizontal hole of the L-shaped through hole to the vertical hole, the first compression spring 26 relaxes, the first slag baffle 13 rises, and the ash and slag in the wheel type slag box 3 is poured out.

[0034] The first slag baffle 13 in the embodiment 1 is installed at the right end of the wheel type slag box 3, and the rectangular slag discharge hole at the right end of the wheel type slag box 3 is not easy to pour out the ash and slag in the wheel type slag box 3. In the embodiment 2, as shown in the figure, Figure 5 The upper end of the rectangular slag discharge hole of the wheel type slag box 3 is provided with a rectangular cavity, the second slag baffle 54 is installed at the rectangular slag discharge hole of the wheel type slag box 3, the cavity in the rectangular cavity of the wheel type slag box 3 is provided with a partition plate, the partition plate is provided with two through holes, the second slag baffle 54 is connected with the right ends of the two fourth guide rods 53, the left ends of the fourth guide rods 53 pass through the through holes of the partition plate and are connected with the guide disc 51, the fifth compression spring 52 is sleeved with the outer side of the fourth guide rod 53, the right end of the fifth compression spring 52 is connected with the partition plate, and the left end is connected with the guide disc 51.

[0035] The two side walls of the wheel type slag box 3 are respectively provided with a guide cylinder 44 and a guide plate, the guide plate is provided with a guide hole, the lower end of the fifth guide rod 48 penetrates the guide hole of the guide plate and is connected with the upper end of the first guide block 49, the upper end is connected with the second guide block 46, the left end of the first guide block 49 is provided with an inclined surface, the guide disc 51 is provided with a guide pin shaft 50, the two side walls of the wheel type slag box 3 are respectively provided with a rectangular guide through hole and a rectangular cavity, the guide pin shaft 50 penetrates the rectangular guide through hole of the wheel type slag box 3 and is located on the right end of the first guide block 49, the fifth guide rod 48 is provided with a shaft ring, the outer side of the fifth guide rod 48 is sleeved with the sixth compression spring 47, the upper end of the sixth compression spring 47 is connected with the shaft ring of the fifth guide rod 48, and the lower end is connected with the first guide block 49, the left end of the second guide block 46 is provided with an inclined surface, the left end of the sixth guide rod 42 penetrates the through hole on the guide cylinder 44 and is connected with the third guide block 45, the sixth guide rod 42 is provided with a shaft ring, the outer side of the sixth guide rod 42 is sleeved with the seventh compression spring 43, the right end of the seventh compression spring 43 is connected with the shaft ring of the sixth guide rod 42, and the left end is connected with the third guide block 45, the right end of the third guide block 45 is provided with an inclined surface, and the upper end of the second guide block 46 is located on the lower end of the third guide block 45.

[0036] When the wheel type slag box 3 slides to the position of the limiting rod 22 on the right end of the second sliding rail 21, the limiting rod 22 drives the sixth guide rod 42, the sixth guide rod 42 compresses the seventh compression spring 43, the sixth guide rod 42 moves to the left, drives the third guide block 45 to move to the left, the inclined surface of the third guide block 45 moves to the inclined surface of the second guide block 46, the fifth guide rod 48 rises, the fifth guide rod 48 drives the first guide block 49 to rise, the first guide block 49 no longer abuts against the left end of the guide disc 51, the fifth compression spring 52 relaxes, the fourth guide rod 53 drives the second slag blocking plate 54 to move to the left, and the ash and slag in the wheel type slag box 3 is poured out.

[0037] In example 1, the first limiting shaft 16 of the limiting plate 11 needs to be manually placed in the limiting groove of the limiting plate 11, which is very inconvenient. In example 3, Figure 6 and 7As shown, the chassis 1 is provided with a base plate 55 on each side, the base plate 55 is provided with a cylindrical cavity, a rectangular guide hole is provided on the side wall of the base plate 55 and communicates with the cylindrical cavity, a partition plate is arranged in the cylindrical cavity of the base plate 55, the partition plate is provided with a through hole, a positioning shaft 57 is arranged in the cylindrical cavity of the base plate 55, the positioning shaft 57 is provided with a shaft ring, an eighth compression spring 58 is sleeved on the outer side of the positioning shaft 57, the upper end of the eighth compression spring 58 is connected with the shaft ring of the positioning shaft 57, the lower end is connected with the partition plate, the lower end of the positioning shaft 57 is connected with a limiting shaft 59 perpendicularly, and the limiting shaft 59 passes through the rectangular guide hole on the base plate 55.

[0038] The upper end of the base plate 55 is provided with a rectangular groove, the rectangular groove is provided with a blocking plate 56, the right end of the blocking plate 56 is hinged with the base plate 55, a torsional spring is arranged at the hinged position of the blocking plate 56 and the base plate 55, one end of the torsional spring is connected with the blocking plate 56 and the other end is connected with the base plate 55, and the positioning shaft 57 is blocked on one side of the blocking plate 56.

[0039] When the supporting plate 17 is rotated, the supporting plate 17 presses the limiting shaft 59 downward, the limiting shaft 59 drives the positioning shaft 57 to move downward and compresses the eighth compression spring 58, when the positioning shaft 57 is no longer pressed on one side of the blocking plate 56, the torsional spring drives the blocking plate 56 to rotate by 90° and is blocked on the upper end of the supporting plate 17 to prevent the reset of the supporting plate 17.

[0040] It should be noted that the specific embodiments of the present application have been described in detail, and various obvious modifications made by those skilled in the art without departing from the spirit and scope of the present application are within the protection scope of the present application.

Claims

1. A slagging device for a vertical coal mill, characterized in that: The utility model provides a wheel type residue box, first slide rail, second slide rail, underframe, support plate, support rod and sealing valve, the left end of underframe is hinged with the left end of two first slide rails, and the right end of underframe is fixedly connected with two second slide rails, and the second slide rail is connected with underframe at a certain angle, the both sides of underframe are hinged with the lower end of support plate respectively, and the upper end of two support plates is connected through support rod, support rod is placed in the lower end of two first slide rails, makes first slide rail parallel with ground, support plate is connected with the left end of tensile spring, and the right end of tensile spring is connected with underframe, a clamping plate is equipped on underframe, clamping plate is installed in the right end of support plate, underframe is hinged with the lower end of limiting plate, the upper end of limiting plate is equipped with limiting groove, and first limiting shaft is equipped on support plate, the lower end of the right end of second slide rail is connected with baffle, two wheels are equipped on the both sides of wheel type residue box respectively, annular groove is equipped on the outside of wheel, and first slide rail is placed in the annular groove of wheel, the right end of wheel type residue box is located in the right end of the bottom plate of wheel type residue box, the upper end of wheel type residue box rectangular residue discharging hole is equipped with rectangular cavity, second residue baffle is installed at wheel type residue box rectangular residue discharging hole, a partition is equipped in the rectangular cavity of wheel type residue box, two through holes are equipped on the partition, second residue baffle is connected with the right end of two fourth guide rods, the left end of fourth guide rod passes through the through hole on the partition and is connected with guide disc, the outside of fourth guide rod is sleeved with fifth compression spring, the right end of fifth compression spring is connected with partition, and the left end is connected with guide disc, guide cylinder and guide plate are equipped on the both sides of wheel type residue box respectively, guide hole is equipped on the guide plate, the lower end of fifth guide rod passes through the guide hole of guide plate and is connected with the upper end of first guide block, and the upper end is connected with second guide block, the left end of first guide block is equipped with an inclined surface, a guide pin shaft is equipped on the guide disc, a rectangular guide through hole is equipped on the both sides of wheel type residue box respectively and is communicated with rectangular cavity, the guide pin shaft passes through the rectangular guide through hole of wheel type residue box and is supported on the right end of first guide block, an axle collar is equipped on fifth guide rod, the outside of fifth guide rod is sleeved with sixth compression spring, the upper end of sixth compression spring is connected with the axle collar of fifth guide rod, and the lower end is connected with first guide block, the left end of second guide block is equipped with an inclined surface, the left end of sixth guide rod passes through the through hole on guide cylinder and is connected with third guide block, an axle collar is equipped on sixth guide rod, the outside of sixth guide rod is sleeved with seventh compression spring, the right end of seventh compression spring is connected with the axle collar of sixth guide rod, and the left end is connected with third guide block, the right end of third guide block is equipped with an inclined surface, and the upper end of second guide block is supported on the lower end of third guide block, the right end of second slide rail is connected with limiting rod perpendicularly, the utility model discloses a wheel type residue box, first slide rail, second slide rail, underframe, support plate, support rod and sealing valve,The upper end of the slag inlet pipe is connected with the vertical pipe of the elbow joint through a sealing valve, and the vertical pipe of the elbow joint is connected with the slag discharge port of the coal mill; the sealing valve comprises a fixed plate, an outer sleeve, a connecting pipe and a second compression spring, the fixed plate is provided with a circular through hole, the outer sleeve is fixedly connected with the fixed plate, the outer sleeve is coaxial with the circular through hole of the fixed plate, the right end of the fixed plate is provided with a rectangular sliding groove which is in communication with the circular through hole, the right end of the fixed plate is fixedly connected with two side support plates, the two side support plates are connected through a connecting plate, the connecting plate is provided with a guide through hole, the left end of a sealing plate is placed at the right end of the rectangular sliding groove of the fixed plate, the right end is connected with the left end of a second guide rod, the right end of the second guide rod passes through the guide through hole of the connecting plate; the lower end of the outer sleeve is provided with an annular groove, the upper end of the connecting pipe is inserted into the annular groove of the outer sleeve, the upper end of the connecting pipe is connected with the top of the annular groove of the outer sleeve through the second compression spring, the lower end of the connecting pipe is inserted into the annular groove of the slag inlet pipe, the left end of the second guide rod is fixedly connected with a positioning rod, the outer side of the second guide rod is sleeved with a third compression spring, the left end of the third compression spring is connected with the positioning rod, and the right end is connected with the connecting plate; the two side support plates are connected with a rotating shaft, the rotating shaft is hinged with the bending part of an L-shaped plate, the L-shaped plate is connected with the rotating shaft through a torsion spring, one end of the torsion spring is connected with the L-shaped plate, and the other end is connected with the rotating shaft; the torsion spring supports the vertical plate of the L-shaped plate at the left end of the positioning rod; the side support plate is provided with a rectangular guide through hole, a pressing rod is placed at the upper end of the horizontal plate of the L-shaped plate, the two ends of the pressing rod pass through the rectangular guide through hole of the side support plate and are connected with connecting rods, and the two connecting rods are connected through a pull rod; the side support plate is provided with an ear plate, the ear plate is provided with a guide hole, the lower end of a third guide rod passes through the guide hole of the ear plate and is connected with a first limiting block, the lower end of the first limiting block is provided with an inclined surface, the first limiting block and the ear plate are connected through a fourth compression spring, the connecting rod is provided with a second limiting block, the second limiting block is provided with an inclined surface, and the inclined surfaces of the first limiting block and the second limiting block are oppositely arranged; the outer wall of the connecting pipe is provided with two connecting shafts, the two sides of the outer sleeve are hinged with a wire guide wheel respectively, one end of the connecting shaft is connected with one end of a traction line, the other end of the traction line passes around the wire guide wheel and is connected with the pressing rod; the two sides of the base frame are respectively provided with a base plate, the base plate is provided with a cylindrical cavity, a rectangular guide hole is arranged on the side wall of the base plate and communicates with the cylindrical cavity, a partition plate is arranged in the cylindrical cavity of the base plate, the partition plate is provided with a through hole, a positioning shaft is arranged in the cylindrical cavity of the base plate, the positioning shaft is provided with a shaft ring, the outer side of the positioning shaft is sleeved with an eighth compression spring, the upper end of the eighth compression spring is connected with the shaft ring of the positioning shaft, and the lower end is connected with the partition plate, the lower end of the positioning shaft is connected with a limiting shaft perpendicularly, and the limiting shaft passes through the rectangular guide hole of the base plate.The upper end of the base plate is provided with a rectangular recess, the rectangular recess is provided with a stop plate, the right end of the stop plate is hinged to the base plate, a torsion spring is installed at the hinge of the stop plate and the base plate, one end of the torsion spring is connected to the stop plate and the other end is connected to the base plate, and the positioning shaft is blocked on one side of the stop plate.

2. A discharge device for a vertical coal mill as claimed in claim 1, wherein: The lower end of the connecting pipe is provided with a limiting ring, which is placed on the upper end of the slag inlet pipe.

3. A discharge device for a vertical coal mill as claimed in claim 1, wherein: The sidewall of the wheeled slag box is provided with an observation hole, and a glass plate is installed at the observation hole.

4. A discharge apparatus for a vertical coal mill as claimed in claim 1, wherein: The first sliding rail is provided with a positioning block.

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