CN215823306U - Discharge port is adjusted to coal pulverizer pebble coal - Google Patents

Abstract

The utility model discloses a pebble coal adjusting discharge port of a coal mill, which comprises a support box, a conveying cylinder, a controller, a fixed box, a base and a collecting box, wherein the bottom end of the conveying cylinder is fixedly arranged at the top end of the support box, the controller is fixedly arranged on the right side of the top end of the support box, the fixed box is in interference fit with the outer wall of the conveying cylinder, the base is slidably inserted into an inner cavity of the support box, the collecting box is arranged at the bottom end of the base through a lifting assembly, and a pneumatic control assembly is arranged in the inner cavity of the fixed box. The problem of being very unstable.

Description

Discharge port is adjusted to coal pulverizer pebble coal

Technical Field

The utility model relates to the technical field of pebble coal discharge devices, in particular to a pebble coal adjusting discharge port of a coal mill.

Background

Coal mills are machines for breaking up and grinding coal briquettes into coal dust, which are important auxiliary equipment for coal dust furnaces. The grinding machine comprises a vertical type flour mill, a high-pressure suspension roller mill, a medium-speed micro-powder mill, an overpressure trapezoidal mill, a Raymond mill and the like.

When the coal mill is used, a large amount of pebble coal is generated besides a large amount of good coal cinder, the pebble coal and the coal cinder are required to be separated in production, so that a pebble coal discharging device is generated, but the pebble coal discharging device in the prior art uses an electric machine to control the discharge of the pebble coal in use, and in use, the pebble coal can be collected only by lifting a collecting box through a lifting assembly in a supporting box due to the fact that the pebble coal is greatly influenced by dust and the coal cinder, the pebble coal is often blocked and falls in a workshop due to the fact that the pebble coal is not stable, the collecting box needs to be aligned to the lifting assembly, time is wasted, and the discharge port is adjusted according to the pebble coal of the coal mill.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a pebble coal adjusting discharge port of a coal mill, and solves part of the problems of the prior art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a discharge port is adjusted to coal pulverizer pebble, includes supporting box, a transport section of thick bamboo, controller, fixed case, base and collecting box, the bottom fixed mounting of a transport section of thick bamboo is on the top of supporting box, controller fixed mounting is on the top right side of supporting box, fixed case interference fit is at the outer wall of a transport section of thick bamboo, the base slidable pegs graft in the inner chamber of supporting box, the collecting box passes through the lifting unit and sets up the bottom at the base, the inner chamber of fixed case is provided with the pneumatic control subassembly, the top of supporting box is provided with the slip subassembly, the inner chamber top of supporting box is provided with the secondary and shelters from the subassembly, the subassembly fixed connection is sheltered from with the secondary to the slip subassembly.

Preferably, the pneumatic control subassembly is including air supply diverter valve, pneumatic actuator, switch board and connecting rod, two the equal fixed mounting of air supply diverter valve is on the outer wall right side of controller, pneumatic actuator fixed mounting is at the outer wall of fixed case, two the inner chamber at the fixed case is embedded to the switch board slidable, and extends to the inner chamber of fixed case, two the one end slidable of connecting rod is embedded at pneumatic actuator's is embedded, and the other end respectively with the outer wall fixed connection of two switch boards.

Preferably, the slip subassembly is including fixed plate, guide arm, sleeve, spring and slide, two fixed plate difference fixed mounting is in the top left and right sides of supporting box, two both ends, two around the inboard of two fixed plates are fixed mounting respectively to the guide arm the sleeve is slidable respectively cup joints the outer wall at two guide arms, two the spring cup joints the outer wall at two guide arms respectively, two the slide is seted up respectively in the top of supporting box both sides, two both sides around the telescopic bottom runs through the inner chamber of two slides respectively and extends to the inner chamber top of supporting box.

Preferably, the secondary shielding assembly comprises a moving plate and a push plate, the moving plate is fixedly installed at the bottom ends of the two sleeves, and the push plate is fixedly installed on the right side of the bottom end of the moving plate.

Preferably, the lifting assembly comprises telescopic rods, fixed blocks, a motor, a screw rod, a slide block, a connecting rod and a limiting assembly, the four telescopic rods are respectively and fixedly arranged at four corners of the top end of the base, the two fixed blocks are respectively and fixedly arranged at the left side and the right side of the top end of the base, the motor is fixedly arranged on the right side of the top end of the base through a fastener, the output end of the motor extends to the inner sides of the two fixed blocks, the left end of the screw rod is rotatably connected to the right side of the outer wall of the fixed block on the left side through a bearing, the right end of the connecting rod is connected with the output end of the motor in a locking way through a coupler, the two sliding blocks are respectively connected with the left side and the right side of the outer wall of the screw rod in a threaded way, the bottom ends of the two connecting rods are respectively connected with the bottom ends of the two sliding blocks in a rotating way through a pin shaft, and the other end of the sliding block is rotatably connected to the middle part of the bottom end of the collecting box through a pin shaft, and the two sliding blocks are movably connected with the top end of the base through limiting assemblies.

Preferably, the bottom four corners of base fixed mounting respectively has the universal wheel, the top right side fixed mounting of base has the handrail, the right side of supporting box is provided with the hang plate.

Preferably, the limiting assembly comprises a limiting groove and a limiting block, the limiting groove is formed in the middle of the top end of the base in the left-right direction, the limiting groove is embedded into the limiting groove in the bottom end of the limiting block in a sliding mode, and the limiting groove is formed in the top end of the limiting block in a fixed connection mode.

Preferably, the outer wall of the handrail is provided with a slip placing edge, and the top end of the inclined plate is provided with an anti-slip layer.

Preferably, the inner cavity of the limiting groove and the outer wall of the limiting block are both T-shaped.

The utility model provides a pebble coal adjusting discharge port of a coal mill. The method has the following beneficial effects:

one of them, through the control system that two manual air supply diverter valves are constituteed, when pulling one of them diverter valve, the action of operatable pneumatic actuator, make two connecting rods of pneumatic actuator control drive two switch boards and make a round trip to slide at the inner chamber of fixed case, thereby realize the control to the switch board, realize the emission to the pebble coal, avoid receiving the great condition of influence of cinder to appear when opening and closing of electrical structure control switch board, the stability of equipment has been improved, avoid the pebble coal to scatter to the operation workshop.

Secondly, through the setting of movable plate, can realize the secondary that blocks the transport cylinder, advance possibly to avoid the pebble coal to scatter to the operation workshop.

Thirdly, drive the collecting box through the base, make the collecting box extrusion push pedal, make the push pedal drive the movable plate and slide to the left side, and then can make the sleeve slide to the left side along guide arm and slide, make the spring produce corresponding elastic deformation, then produce corresponding elasticity, after the stone coal in the collecting box was filled with, pull out the inner chamber of supporting box with the collecting box, under the elastic force effect of spring, can make the sleeve drive and certainly do and the quick recovery original flavor of push pedal, and then make the movable plate shelter from the bottom of carrying a section of thick bamboo, realize the secondary and block, the most probably avoids the stone coal to scatter in the workshop.

It is four, it rotates to drive the screw rod through the motor, under the effect of screw rod outer wall screw thread rotation power, when the screw rod is rotatory, can make two sliders slide to the inboard simultaneously under the limiting displacement of spacing groove and stopper, and then make the collecting box upwards slide along the straight line under the limiting displacement of the support of connecting rod and telescopic link, the bottom in close contact with of bottom and supporting box that makes the collecting box, still can make the collecting box wrap up the bottom of carrying the section of thick bamboo, avoid when using the collecting box to collect the stone coal, the condition that needs strict control collecting box appears, a large amount of time has been practiced thrift.

Drawings

FIG. 1 is a front cross-sectional view of a pulverizer pebble coal conditioning discharge port of the present invention.

FIG. 2 is a front cross-sectional view of a pulverizer pebble coal conditioning discharge port support box of the present invention.

FIG. 3 is a top cross-sectional view of a coal pulverizer pebble coal conditioning discharge port according to the present invention.

FIG. 4 is a top cross-sectional view of a pulverizer pebble coal conditioning discharge port retention box of the present invention.

FIG. 5 is an expanded view of a pulverizer pebble coal conditioning discharge port fixture box according to the present invention.

FIG. 6 is an enlarged view at A of FIG. 1 of a pebble coal conditioning discharge port of a coal pulverizer of the present invention.

FIG. 7 is a top view of a moving plate for a pebble coal conditioning discharge port of a coal mill according to the present invention.

In the figure: 1. the device comprises a supporting box, 2, a conveying cylinder, 3, a controller, 4, a fixed box, 5, a base, 6, a collecting box, 7, an air source switching valve, 8, a pneumatic actuator, 9, a switch plate, 10, a connecting rod, 11, a fixed plate, 12, a guide rod, 13, a sleeve, 14, a spring, 15, a moving plate, 16, a slide way, 17, a push plate, 18, a telescopic rod, 19, a fixed block, 20, a motor, 21, a screw rod, 22, a sliding block, 23, a connecting rod, 24, a limiting groove, 25, a limiting block, 26, a universal wheel, 27, a handrail, 28 and an inclined plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained. (the details of the connection and operation sequence of the components and parts in this case should be referred to the following working principle, the detailed connection means thereof, the following working principle and process are generally described in the following, which are well known in the art.)

As shown in fig. 1-7, a discharge port is adjusted to coal pulverizer stone coal, including supporting box 1, a conveyor barrel 2, a controller 3, fixed box 4, base 5 and collecting box 6, the bottom fixed mounting of a conveyor barrel 2 is on the top of supporting box 1, controller 3 fixed mounting is on the top right side of supporting box 1, fixed box 4 interference fit is at the outer wall of conveyor barrel 2, base 5 slidable pegs graft in the inner chamber of supporting box 1, collecting box 6 passes through the lifting unit and sets up the bottom at base 5, the inner chamber of fixed box 4 is provided with the pneumatic control subassembly, the top of supporting box 1 is provided with the slip subassembly, the inner chamber top of supporting box 1 is provided with the secondary and shelters from the subassembly, the slip subassembly shelters from subassembly fixed connection with the secondary.

As preferred scheme, still further, the pneumatic control subassembly is including air supply diverter valve 7, pneumatic actuator 8, switch board 9 and connecting rod 10, two equal fixed mounting of air supply diverter valve 7 are on the outer wall right side of controller 3, pneumatic actuator 8 fixed mounting is on the outer wall of fixed case 4, two switch boards 9 slidable are embedded at the inner chamber of fixed case 4, and extend to the inner chamber of fixed case 4, the one end slidable of two connecting rods 10 is embedded at pneumatic actuator 8, and the other end respectively with the outer wall fixed connection of two switch boards 9, optimize the benefit and be: control system through two manual air supply diverter valves 7 constitution, when pulling one of them diverter valve, the action of operatable pneumatic actuator, make two connecting rods 10 of pneumatic actuator 8 control drive two switch boards 9 and make a round trip to slide at the inner chamber of fixed case 4, thereby realize the control to switch board 9, realize the emission to the stone coal, avoid the great condition of influence that receives the cinder when opening and closing of electrical structure control switch board 9 to appear, the stability of equipment has been improved, avoid the stone coal to scatter to the operation workshop. As preferred scheme, still further, the slip subassembly is including fixed plate 11, guide arm 12, sleeve 13, spring 14 and slide 16, two fixed plate 11 are fixed mounting respectively in the top left and right sides of supporting box 1, both ends around two guide arm 12 fixed mounting respectively is inboard at two fixed plate 11, two sleeve 13 are slidable respectively cup joints the outer wall at two guide arm 12, two spring 14 cup joints the outer wall at two guide arm 12 respectively, both sides around two slides 16 set up respectively in the top of supporting box 1, the inner chamber that two slide 16 were run through respectively to the bottom of two sleeve 13 extends to the inner chamber top of supporting box 1, optimize the benefit and be: drive collecting box 6 through base 5, make collecting box 6 extrusion push pedal 17, make push pedal 17 drive movable plate 15 slide to the left side, and then can make sleeve 13 slide to the left side along guide arm 12 and slide 16, make spring 14 produce corresponding elastic deformation, then produce corresponding elasticity, after the stone coal in collecting box 6 is filled with, pull out the inner chamber of supporting box 1 with collecting box 6, under spring 14's elastic force effect, can make sleeve 13 drive and certainly do and the quick recovery original flavor of push pedal 17, and then make movable plate 15 shelter from the bottom of carrying a section of thick bamboo 2, realize the secondary and block, the most possible stone coal of avoiding scatters and falls in the workshop.

As a preferred scheme, furthermore, the secondary shielding assembly comprises a moving plate 15 and a push plate 17, the moving plate 15 is fixedly installed at the bottom ends of the two sleeves 13, and the push plate 17 is fixedly installed at the right side of the bottom end of the moving plate 15, so that the optimization benefits are as follows: through the arrangement of the moving plate 15, secondary blocking of the conveying cylinder 2 can be realized, and stone coal is possibly prevented from scattering to an operation workshop.

As a preferred scheme, furthermore, the lifting assembly comprises telescopic rods 18, fixed blocks 19, a motor 20, a screw 21, sliders 22, connecting rods 23 and a limiting assembly, the four telescopic rods 18 are respectively and fixedly installed at four corners of the top end of the base 5, the two fixed blocks 19 are respectively and fixedly installed at the left and right sides of the top end of the base 5, the motor 20 is fixedly installed at the right side of the top end of the base 5 through fasteners, the output end of the motor 20 extends to the inner sides of the two fixed blocks 19, the left end of the screw 21 is rotatably connected to the right side of the outer wall of the fixed block 19 at the left side through a bearing, the right end of the screw is connected to the output end of the motor 20 through a coupling in a locking manner, the two sliders 22 are respectively screwed to the left and right sides of the outer wall of the screw 21, the bottom ends of the two connecting rods 23 are respectively rotatably connected to the bottom ends of the two sliders 22 through pin shafts, and the other ends of the two connecting rods are rotatably connected to the middle parts of the bottom ends of the collecting box 6 through pin shafts, two sliders 22 are all through spacing subassembly and base 5's top swing joint, and the optimization benefit is: drive screw rod 21 through motor 20 and rotate, under the effect of screw rod 21 outer wall screw thread rotation power, when screw rod 21 is rotatory, can make two sliders 22 slide to the inboard simultaneously under spacing action of spacing groove 24 and stopper 25, and then make collecting box 6 upwards slide along the straight line under the supporting of connecting rod 23 and the spacing action of telescopic link 18, make the bottom of collecting box 6 and the bottom in close contact with of supporting box 1, still can make collecting box 6 wrap up the bottom of carrying section of thick bamboo 2, avoid when using collecting box 6 to collect the stone coal, the condition that needs strict control collecting box 6 appears, a large amount of time has been practiced thrift.

As a preferred scheme, furthermore, universal wheels 26 are fixedly installed at four corners of the bottom end of the base 5, handrails 27 are fixedly installed at the right side of the top end of the base 5, and an inclined plate 28 is arranged at the right side of the support box 1, so that the advantages of: through the setting of universal wheel 26 and handrail 27, can conveniently remove base 5, through the setting of hang plate 28, can conveniently push away base 5 and collecting box 6 to the inner chamber of supporting box 1, can save operating personnel's physical power.

As preferred scheme, further, spacing subassembly includes spacing groove 24 and stopper 25, and the top middle part at base 5 is seted up along left right direction to spacing groove 24, and the bottom slidable of two stoppers 25 is embedded at spacing groove 24's is embedded, and two stoppers 25's top is fixed connection respectively in two sliders 22's bottom, optimizes the benefit and is: through the setting of spacing subassembly, can avoid slider 22 to follow screw rod 21 and rotate, improve lifting unit's stability.

Preferably, the outer wall of the handrail 27 is provided with a slip-placing edge, and the top end of the inclined plate 28 is provided with a slip-proof layer, so that the following advantages are achieved: the situation of taking off the hand when pulling or pushing the handrail 27 can be avoided through the setting of the anti-slip ribs on the handrail 27, the stability of the equipment is improved, and the situation of skidding of the wheels on the inclined plates 28 can be avoided through the setting of the anti-slip layer on the top ends of the inclined plates 28.

As preferred scheme, further, the inner chamber of spacing groove 24 and the outer wall of spacing piece 25 all are "T" font, and the optimization benefit is: the inner cavity that can make stopper 25 stable is at the inner cavity of spacing groove 24, avoids stopper 25 to break away from the slide that influences slider 22 behind the inner cavity of spacing groove 24, makes slider 22 follow screw rod 21 and rotates to make lifting unit's effect can not come into play, improved lifting unit's stability.

The working principle is that when the hand discharging the pebble coal is used, through a control system consisting of two manual air source switching valves 7, when one switching valve is pulled, a pneumatic actuator can be operated to act, so that a pneumatic actuator 8 controls two connecting rods 10 to drive two switch plates 9 to slide back and forth in the inner cavity of a fixed box 4, the switch plates 9 are controlled, the pebble coal is discharged, the situation that the switch plates 9 are greatly influenced by coal cinder when being opened and closed under the control of an electrical structure is avoided, the stability of the device is improved, the pebble coal is prevented from scattering to an operation workshop, when the pebble coal is collected, firstly, a handrail 27 is pushed, under the action of a universal wheel 26, a base 5 drives a collecting box 6 to support the inner cavity of a box 1, at the moment, the collecting box 6 extrudes a push plate 17, and the push plate 17 drives a moving plate 15 to slide leftwards, and further the sleeve 13 can slide to the left side along the guide rod 12 and the slide way 16, so that the spring 14 generates corresponding elastic deformation, and then generates corresponding elastic force, after the pebble coal in the collection box 6 is filled, the collection box 6 is pulled out of the inner cavity of the support box 1, under the elastic force of the spring 14, the sleeve 13 can drive a fixing part and the push plate 17 to quickly restore to the original position, so that the moving plate 15 can shield the bottom end of the conveying cylinder 2, secondary blocking is realized, and the pebble coal is prevented from scattering in a workshop to the greatest extent, meanwhile, the pneumatic motor 20 can drive the screw 21 to rotate by the motor 20, under the action of the thread rotation force of the outer wall of the screw 21, when the screw 21 rotates, the two sliding blocks 22 can slide inwards under the limiting action of the limiting groove 24 and the limiting block 25, so that the collection box 6 can slide upwards along a straight line under the supporting of the connecting rod 23 and the limiting action of the telescopic rod 18, make the bottom of collecting box 6 and the bottom in close contact with of supporting box 1, still can make the collecting box 6 wrap up with the bottom of delivery cylinder 2, avoid when using collecting box 6 to collect the pebble coal, the condition that needs strict control collecting box 6 appears, a large amount of time has been practiced thrift, the device compact structure, and reasonable design, accessible pneumatic means realizes the emission to the pebble coal, avoid the great condition of influence that receives the cinder when opening and closing of electrical structure control switch board 9 to appear, the stability of equipment has been improved, avoid the pebble coal to scatter to the operation workshop, still can realize blockking the secondary of delivery cylinder 2, the stability is improved, avoid the pebble coal to spill, and the operation is simple, and is convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A pebble coal adjusting discharge port of a coal mill comprises a supporting box (1), a conveying cylinder (2), a controller (3), a fixed box (4), a base (5) and a collecting box (6), it is characterized in that the bottom end of the conveying cylinder (2) is fixedly arranged at the top end of the supporting box (1), the controller (3) is fixedly arranged at the right side of the top end of the supporting box (1), the fixed box (4) is in interference fit with the outer wall of the conveying cylinder (2), the base (5) can be inserted in the inner cavity of the supporting box (1) in a sliding way, the collecting box (6) is arranged at the bottom end of the base (5) through a lifting component, the inner cavity of the fixed box (4) is provided with a pneumatic control component, the top end of the supporting box (1) is provided with a sliding component, the inner chamber top of supporting box (1) is provided with the secondary and shelters from the subassembly, the subassembly fixed connection is sheltered from with the secondary to the slip subassembly.

2. The coal pulverizer pebble coal adjusting discharge port according to claim 1 is characterized in that the pneumatic control assembly comprises an air source switching valve (7), a pneumatic actuator (8), switch plates (9) and connecting rods (10), wherein the two air source switching valves (7) are fixedly arranged on the right side of the outer wall of the controller (3), the pneumatic actuator (8) is fixedly arranged on the outer wall of the fixed box (4), the two switch plates (9) are slidably embedded in the inner cavity of the fixed box (4) and extend to the inner cavity of the fixed box (4), one ends of the two connecting rods (10) are slidably embedded in the pneumatic actuator (8), and the other ends of the two connecting rods are respectively fixedly connected with the outer walls of the two switch plates (9).

3. The coal pulverizer pebble coal conditioning discharge port of claim 1, the sliding assembly comprises a fixing plate (11), guide rods (12), a sleeve (13), a spring (14) and a slide (16), wherein the fixing plate (11) is fixedly arranged on the left side and the right side of the top of the supporting box (1) respectively, the guide rods (12) are fixedly arranged on the front end and the rear end of the inner side of the two fixing plates (11) respectively, the sleeve (13) is sleeved on the outer wall of the two guide rods (12) in a slidable mode respectively, the spring (14) is sleeved on the outer wall of the two guide rods (12) respectively, the slide (16) is arranged on the front side and the rear side of the top of the supporting box (1) respectively, and the bottom end of the sleeve (13) penetrates through the inner cavity of the two slide (16) respectively and extends to the top end of the inner cavity of the supporting box (1).

4. The coal pulverizer pebble coal adjusting discharge port according to claim 1, wherein the secondary shielding assembly comprises a moving plate (15) and a push plate (17), the moving plate (15) is fixedly installed at the bottom ends of the two sleeves (13), and the push plate (17) is fixedly installed at the right side of the bottom end of the moving plate (15).

5. The coal pulverizer pebble coal adjusting discharge port according to claim 1, wherein the lifting assembly comprises four telescopic rods (18), fixing blocks (19), a motor (20), a screw rod (21), a sliding block (22), a connecting rod (23) and a limiting assembly, the four telescopic rods (18) are respectively and fixedly arranged at four corners of the top end of the base (5), the two fixing blocks (19) are respectively and fixedly arranged at the left side and the right side of the top end of the base (5), the motor (20) is fixedly arranged at the right side of the top end of the base (5) through a fastening piece, the output end of the motor (20) extends to the inner sides of the two fixing blocks (19), the left end of the screw rod (21) is rotatably connected to the right side of the outer wall of the fixing block (19) at the left side through a bearing, the right end of the screw rod is connected to the output end of the motor (20) through a coupling in a locking manner, the two sliding blocks (22) are respectively and screwed on the left side and the right side of the outer wall of the screw rod (21), the bottom ends of the two connecting rods (23) are respectively connected to the bottom ends of the two sliding blocks (22) in a rotating mode through pin shafts, the other ends of the two connecting rods are respectively connected to the middle of the bottom end of the collecting box (6) in a rotating mode through pin shafts, and the two sliding blocks (22) are respectively movably connected with the top end of the base (5) through limiting assemblies.

6. The coal pulverizer pebble coal adjusting discharge port according to claim 1, wherein four corners of the bottom end of the base (5) are fixedly provided with universal wheels (26), a handrail (27) is fixedly arranged on the right side of the top end of the base (5), and an inclined plate (28) is arranged on the right side of the support box (1).

7. The coal pulverizer pebble coal adjusting discharge port according to claim 5, wherein the limiting assembly comprises a limiting groove (24) and limiting blocks (25), the limiting groove (24) is formed in the middle of the top end of the base (5) in the left-right direction, the bottom ends of the two limiting blocks (25) are slidably embedded in the limiting groove (24), and the top ends of the two limiting blocks (25) are fixedly connected to the bottom ends of the two sliding blocks (22) respectively.

8. The coal pulverizer pebble coal adjusting discharge port of claim 6, wherein the outer wall of the handrail (27) is provided with a slip ridge, and the top end of the inclined plate (28) is provided with an anti-slip layer.

9. The coal pulverizer pebble coal adjusting discharge port of claim 7, wherein the inner cavity of the limiting groove (24) and the outer wall of the limiting block (25) are both in a T shape.

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