CN112675997A - Coal chemical industry feeding device and operation method thereof - Google Patents

Abstract

The invention discloses a coal chemical industry feeding device and an operation method thereof, and relates to the technical field of coal chemical industry processing equipment. According to the invention, the crushing assembly is used for respectively driving the two groups of crushing cutters to rotate forwards and backwards in the crushing cavity, so that large coal raw materials are sheared into smaller coal particles, compared with the mode of crushing in the same direction, the crushing effect is better, the shearing force is stronger, the coal retention time is longer, and after primary crushing, the coal particles are progressively rolled by the rolling assembly, so that the crushing effect is further enhanced, the dust particles screened out by the screen during screening are greatly reduced, the feeding efficiency is effectively improved, meanwhile, the material returning assembly is arranged, so that the screened dust particles can be crushed again, and the labor intensity of workers is greatly reduced.

Description

Coal chemical industry feeding device and operation method thereof

Technical Field

The invention relates to the technical field of coal chemical processing equipment, in particular to a coal chemical feeding device and an operation method thereof.

Background

The coal chemical industry refers to a process of converting coal into gas, liquid, solid fuel and chemicals by using coal as a raw material through chemical processing, and mainly comprises gasification, liquefaction, dry distillation, tar processing, calcium carbide acetylene chemical industry and the like of the coal.

At present, when a small amount of raw materials are not completely crushed, the small amount of raw materials directly fall onto a screen mesh, so that the load pressure of the screen mesh is too large, the screen mesh is easy to block while the work efficiency is reduced, troubles are caused to the operation of workers, and the actual use is not facilitated.

Disclosure of Invention

The invention aims to provide a coal chemical industry feeding device and an operation method thereof, which aim to solve the problems that the load pressure of a screen is overlarge, the working efficiency is reduced and the screen is easy to block because a small part of raw materials directly fall onto the screen without being completely crushed.

In order to achieve the purpose, the invention provides the following technical scheme: a coal chemical industry feeding device comprises a shell, wherein a crushing cavity, a rolling cavity and a screening cavity are formed in the shell from top to bottom, the crushing cavity is of a circular structure, a crushing assembly is arranged in the crushing cavity, a material conveying groove is formed between the bottom of the crushing cavity and the rolling cavity, the rolling assembly is arranged in the rolling cavity, the rolling cavity is communicated with the screening cavity, and the screening assembly and a material returning assembly are arranged in the screening cavity;

the crushing assembly comprises a driving groove and a first motor fixedly arranged in the driving groove, an output shaft of the first motor is fixedly connected with a driving shaft through a coupling, a first driving gear and a second driving gear are arranged on the circumferential side of the driving shaft, a crushing inner shaft is arranged in the crushing cavity, a crushing outer shaft is sleeved outside the crushing inner shaft, one end of the crushing inner shaft is rotatably connected with the inner wall of the crushing cavity through a bearing, the other end of the crushing inner shaft extends into the driving groove and is rotatably connected with the inner wall of the driving groove through a second bearing, the crushing inner shaft is rotatably connected with the crushing outer shaft through a third bearing, two groups of crushing cutters are arranged outside the crushing inner shaft and the crushing outer shaft, a first driven gear is arranged on the circumferential side of the crushing inner shaft corresponding to the first driving gear, and the first driven gear is meshed with the first driving gear, and a second driven gear is arranged at the position, corresponding to the second driving gear, of the circumferential side of the crushing outer shaft, a reversing gear is arranged between the second driven gear and the second driving gear, and the reversing gear is meshed with the second driven gear and the second driving gear respectively.

Preferably, every group the quantity of stirring garrulous cutter sets up to a plurality of, and a plurality of stirring garrulous cutter is circumference array distribution setting in the circumference side of stirring the outer axle, reversing gear's middle part is run through and is provided with the back shaft, reversing gear's one end is kept away from to the back shaft passes through the bearing with the inner wall in drive groove and rotates four to be connected.

Preferably, the inside of defeated silo is provided with the door closer board, the inner wall of defeated silo is provided with the slide, the door closer board is transversely pegged graft in the slide, and the one end of door closer board is provided with electric putter the top of door closer board is provided with the soft layer, the soft layer is the arc structure, and the soft layer is made for elastic material.

Preferably, it is three including conveyer belt, three pressure bar and motor two to roll the subassembly the pressure bar is the equidistance and distributes the setting in the top of conveyer belt, and one of them output shaft fixed connection who rolls pressure bar and motor two, adjacent two connect through belt transmission between the pressure bar, it is progressively reduced from the right side to the left setting in proper order to roll the perpendicular distance of pressure bar bottom between the distance conveyer belt upper surface.

Preferably, the screening subassembly includes that the slope is installed at the inside sieve section of thick bamboo of screening chamber and install the vibrating motor in sieve bobbin base portion the inside of sieve section of thick bamboo can be dismantled and be connected with the screen cloth, the top in screening chamber is provided with three counterattack board, and is three the counterattack board splices each other, and the counterattack board is located the top of screen cloth, and is three the bottom of counterattack board is from the perpendicular distance of screen cloth upper surface and is descending the setting gradually from the left hand right side in proper order, the discharge gate of sieve section of thick bamboo is provided with two, is located the discharge gate of sieve bobbin base portion is provided with the sack discharging pipe, feed back subassembly fixed mounting is in the top discharge gate department.

Preferably, the feed back subassembly includes screw conveyer, screw conveyer's top discharge gate is linked together through the connecting pipe with the open-top in crushing chamber, and screw conveyer's bottom discharge gate is provided with two, one of them screw conveyer's discharge gate is provided with feed hopper, the top discharge gate department of a sieve section of thick bamboo is provided with the guide board, the guide board inserts in screw conveyer another discharge gate, screw conveyer's the position that the discharge gate corresponds the guide board is provided with sealed cloth.

Preferably, a fan is arranged on the inner wall of the screening cavity corresponding to the position of the discharge port at the top of the screen drum, the air outlet end of the fan is communicated with an air pipe, and the air pipe is obliquely arranged above the screen.

An operation method of a coal chemical industry feeding device comprises the following steps:

s1, crushing: the coal raw materials are conveyed into the crushing cavity through the screw conveyer, and after being stirred and crushed in the forward and reverse directions through the two groups of crushing cutters, the door sealing plate is opened through controlling the electric push rod to achieve the purpose of discharging.

S2, rolling: the coal raw materials after preliminary crushing get into the conveyer belt on along the inner wall of defeated silo downwards, then along with the start of conveyer belt to be carried above the feed inlet of a sieve section of thick bamboo, three rolling pole rotates in step simultaneously with this, further crushing to smashing the back coal raw materials and rolls, and the further assurance coal raw materials each position of the mode of rolling of progressive formula can both obtain smashing.

S3, screening: the coal raw materials that get into screen cloth top follow a sieve section of thick bamboo and vibrate, and along with the continuous downstream of coal raw materials, this vibration frequency presents the trend of reinforcing gradually for mixed crushing tiny particle has the possibility of regrinding in the coal raw materials, and the inside that the unable kibbling small particle of coal raw materials gets into screw conveyer again through the guide of guide board is smashed again, and in the qualified coal raw materials gets into the sack discharging tube after the screening, carries out the feed to next process equipment.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the crushing assembly is used for respectively driving the two groups of crushing cutters to rotate forwards and backwards in the crushing cavity, so that large coal raw materials are sheared into smaller coal particles, compared with the mode of crushing in the same direction, the crushing effect is better, the shearing force is stronger, the coal retention time is longer, and after primary crushing, the coal particles are progressively rolled by the rolling assembly, so that the crushing effect is further enhanced, the dust particles screened out by the screen during screening are greatly reduced, the feeding efficiency is effectively improved, meanwhile, the material returning assembly is arranged, so that the screened dust particles can be crushed again, the labor intensity of workers is greatly reduced, and the practical use is facilitated.

2. The invention reduces the vibration amplitude step by arranging the three reaction plates in the screening component, further enhances the vibration frequency, enhances the screening effect and reduces the possibility of blockage of the screen, and meanwhile, the invention is also provided with the fan and the air pipe to slightly loosen the coal raw material to be processed again, thereby reducing the quantity of pulverized coal entering the screw conveyor as much as possible, avoiding the reduction of feeding efficiency caused by repeated conveying and having stronger practicability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a coal chemical industry feeding device and an operation method thereof according to the present invention;

FIG. 2 is a partial cross-sectional view of a coal chemical feed apparatus and method of operating the same according to the present invention;

FIG. 3 is a schematic diagram of a portion of a pulverizing assembly of a coal chemical feeding apparatus and a method for operating the same according to the present invention;

FIG. 4 is an enlarged view of part A of FIG. 1 illustrating a coal chemical feeding apparatus and an operating method thereof according to the present invention;

FIG. 5 is an enlarged view of part B of FIG. 1 illustrating a coal chemical feeding apparatus and an operating method thereof according to the present invention;

fig. 6 is a schematic distribution diagram of three rolling rods of the coal chemical industry feeding device and the operation method thereof.

In the figure: the device comprises a shell 1, a crushing cavity 2, a rolling cavity 3, a screening cavity 4, a crushing assembly 5, a material conveying groove 6, a rolling assembly 7, a screening assembly 8, a material returning assembly 9, a driving groove 51, a motor I52, a driving shaft 53, a driving gear I54, a crushing inner shaft 55, a crushing outer shaft 56, a crushing cutter 57, a driven gear I58, a driving gear II 59, a driven gear II 510, a reversing gear 511, a supporting shaft 512, a door sealing plate 61, a slideway 62, an electric push rod 63, a soft layer 64, a conveyor belt 71, a 72 rolling rod 73, a motor II 73, a screen cylinder 81, a vibrating motor 82, a screen 83, a counterattack plate 84, a cloth bag 85 discharging pipe, a fan 86, an air pipe 87, a spiral conveyor 91, a feeding hopper 92, a guide plate 93 and a.

Detailed Description

The technical aspects of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is to be understood 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.

Referring to fig. 1-6, an embodiment of the present invention is shown: a coal chemical industry feeding device comprises a shell 1, wherein a crushing cavity 2, a rolling cavity 3 and a screening cavity 4 are formed in the shell 1 from top to bottom, the crushing cavity 3 is of a circular structure, a crushing assembly 5 is arranged in the crushing cavity 3, a material conveying groove 6 is formed between the bottom of the crushing cavity 3 and the rolling cavity 3, a rolling assembly 7 is arranged in the rolling cavity 3, the rolling cavity 3 is communicated with the screening cavity 4, and a screening assembly 8 and a material returning assembly 9 are arranged in the screening cavity 4;

the crushing assembly 5 comprises a driving groove 51 and a first motor 52 fixedly arranged in the driving groove 51, an output shaft of the first motor 52 is fixedly connected with a driving shaft 53 through a coupler, a first driving gear 54 and a second driving gear 59 are arranged on the circumferential side of the driving shaft 53, one side of the driving shaft 53 far away from the first motor 52 is rotatably connected with the inner wall of the driving shaft 53 through a sixth bearing, the rotating stability of the driving shaft 53 is enhanced, a crushing inner shaft 55 is arranged in the crushing cavity 2, a crushing outer shaft 56 is sleeved outside the crushing inner shaft 55, one end of the crushing inner shaft 55 is rotatably connected with the inner wall of the crushing cavity 2 through a second bearing, the other end of the crushing inner shaft 55 extends into the driving groove 51 and is rotatably connected with the inner wall of the driving groove 51 through a second bearing, the crushing inner shaft 55 is rotatably connected with the crushing outer shaft 56 through a third bearing, and two groups of crushing cutters 57 are, a first driven gear 58 is provided at a position corresponding to the first driving gear 54 on the circumferential side of the pulverization inner shaft 55, the first driven gear 58 is meshed with the first driving gear 54, a second driven gear 510 is provided at a position corresponding to the second driving gear 59 on the circumferential side of the pulverization outer shaft 56, a direction changing gear 511 is provided between the second driven gear 510 and the second driving gear 59, and the direction changing gear 511 is meshed with the second driven gear 510 and the driving gear 59, respectively.

The number of every group of stirring cutter 57 sets up to a plurality of, and a plurality of stirring cutter 57 is the distribution setting of circumference array at the circumference side of stirring outer axle 56, and reversing gear 511's middle part is run through and is provided with back shaft 512, and the one end that reversing gear 511 was kept away from to back shaft 512 is connected with the inner wall of drive groove 51 through the bearing rotation of four, and back shaft 512 mainly is in order to carry out spacing rotation to reversing gear 511, guarantees reversing gear 511's steady operation.

Referring to fig. 1-3, in a specific implementation, the coal enters the interior of the crushing chamber 2 through the opening of the crushing chamber 2, at this time, the motor one 52 is operated to drive the driving shaft 53 to rotate in the forward direction, and further drive the driving gear one 54 and the driving gear two 59 to rotate in the forward direction, since the driving gear one 54 is meshed with the driven gear two 510, the driven gear 510 rotates in the reverse direction, and thereby drives the crushing inner shaft 55 to rotate in the reverse direction, so that the crushing cutter 57 fixedly connected with the crushing inner shaft 55 is driven to rotate in the reverse direction, and since the driving gear two 59 is meshed with the reversing gear 511, further the reversing gear 511 rotates in the reverse direction, so that the driven gear two 510 rotates in the forward direction, and the crushing outer shaft 56 rotates in the forward direction, so that when the coal falls over the two groups of crushing cutters 57, a set of crushing cutter 57 drives the coal cinder downwards, and another set of crushing cutter 57 drives the coal cinder downwards, and then the coal cinder is sheared and is dragged the fracture, and via a period of crushing, the coal cinder can be sheared into the tiny particle, can strengthen the crushing quality of coal cinder as far as like this, carries out further shredding in leading-in rolling chamber 3 through opening defeated silo 6 after smashing the completion.

A door sealing plate 61 is arranged inside the material conveying groove 6, a slideway 62 is arranged on the inner wall of the material conveying groove 6, the door sealing plate 61 is transversely inserted in the slideway 62, an electric push rod 63 is arranged at one end of the door sealing plate 61, the top of the door sealing plate 61 is provided with a soft layer 64, the soft layer 64 is an arc-shaped structure, and the soft layer 64 is made of an elastic material, it can be understood that the door sealing plate 61 is mainly used for sealing the material conveying chute 6, the door sealing plate 61 slides in the slide way 62, the electric push rod 63 provides power for the movement of the door sealing plate 61, see fig. 4, the soft layer 64 is in an arc structure, the gap in the crushing cavity 2 is compensated, thereby avoiding that part of the coal blocks can not participate in the crushing operation, meanwhile, when the door sealing plate 61 moves, the soft layer 64 is extruded with the inner wall of the material conveying groove 6, and the extrusion surface is inclined at this time, so that the phenomenon of clamping can be avoided.

The rolling component 7 comprises a conveyor belt 71, three rolling rods 72 and a second motor 73, the three rolling rods 72 are arranged above the conveyor belt 71 in an equidistant mode, one of the rolling rods 72 is fixedly connected with an output shaft of the second motor 73, the two adjacent rolling rods 72 are connected through belt transmission, the vertical distance between the bottoms of the rolling rods 72 and the upper surface of the conveyor belt 71 is gradually decreased from right to left, the vertical axial cross section of each rolling rod 72 is of a circular structure with three convex parts, and accordingly the crushing effect can be enhanced.

Referring to fig. 1, fig. 4 and fig. 6, in specific implementation, after accomplishing preliminary crushing in crushing chamber 2, drive electric putter 63 work through electrically controlled device, it takes place to move to drive door closure board 61 in slide 62, open the passageway of defeated silo 6, the coal raw materials in crushing chamber 2 drops to conveyer belt 71 via defeated silo 6, conveyer belt 71 drives the coal raw materials and moves forward, three rolling bar 72 rolls the coal raw materials in proper order this time, carry out further crushing operation, three rolling bar 72 rolls the coal cinder granule progressively simultaneously, the individuality of coal raw materials diminishes gradually, crushing effect is better.

The screening component 8 comprises a screen cylinder 81 obliquely arranged in the screening cavity 4 and a vibrating motor 82 arranged at the bottom of the screen cylinder 81, a screen 83 is detachably connected in the screen cylinder 81, three counterattack plates 84 are arranged at the top of the screening cavity 4, the three counterattack plates 84 are spliced with each other, the counterattack plates 84 are positioned above the screen 83, the vertical distances from the bottoms of the three counterattack plates 84 to the upper surface of the screen 83 are gradually decreased from left to right, two discharge ports of the screen cylinder 81 are arranged, a discharge port at the bottom of the screen cylinder 81 is provided with a cloth bag discharge pipe 85, the feed back component 9 is fixedly arranged at the discharge port at the top of the screen 81, the screen 83 can be understood as being detachable, wherein one end of the screen 83 is inserted into a jack of the screen cylinder 81, the other end of the screen 83 is fixedly connected with the inner wall of the screen cylinder 81 through a bolt, and therefore, the screen 83 can be conveniently replaced, meanwhile, the mutually spliced impact plates 84 are beneficial to changing the vibration by changing the height of the impact plates 84, the vibration frequency is enhanced, and the splicing of the impact plates 84 avoids coal raw materials from being hidden in dead angles of equipment.

The feed back subassembly 9 includes screw conveyer 91, the top discharge gate of screw conveyer 91 is linked together through the connecting pipe with the open-top of smashing chamber 2, and screw conveyer 91's bottom discharge gate is provided with two, one of them screw conveyer 91's discharge gate is provided with feed hopper 92, screen cylinder 81's top discharge gate department is provided with guide plate 93, guide plate 93 inserts in screw conveyer 91 another discharge gate, screw conveyer 91's discharge gate corresponds the position of guide plate 93 and is provided with sealed cloth 94, carry the feed back needs kibbling coal raw materials through screw conveyer 91 once more, can simplify the process flow, reduce workman intensity of labour, sealed cloth 94's effect is for the leakproofness of reinforcing feed back in-process, build good feed environment, sealed cloth 94 can not take place the motion with the vibration simultaneously and interfere.

The fan 86 is arranged at the position of a discharge port at the top of the inner wall of the screening cavity 4 corresponding to the screen drum 81, the air outlet end of the fan 86 is communicated with the air pipe 87, the air pipe 87 is obliquely arranged above the screen 83, the coal raw material to be processed again is slightly loosened, the quantity of the pulverized coal entering the spiral conveyor can be reduced as much as possible, and the feeding efficiency is prevented from being reduced due to repeated conveying.

Referring to fig. 1 and 5, in a specific implementation process, when screening is performed, coal raw materials fall downwards from one end of the conveyor belt 71 to the inside of the screen cylinder 81, at this time, the screen cylinder 81 is driven to vibrate along with the opening of the vibration motor 82, and then the coal raw materials inside the screen cylinder 81 are driven to vibrate, the qualified pulverized coal raw materials enter the lower part of the screen 83 through the screen 83 and then are led out in the direction of the cloth bag discharge pipe 85, the unqualified pulverized coal raw materials continue to stay above the screen 83, the part of unqualified coal raw materials enter the spiral conveyor 91 through the guide plate 93, it needs to be explained that the arrangement of the impact plates 84 gradually reduces the vibration amplitude due to the arrangement of the impact plates 84, so as to gradually enhance the vibration frequency, so that a small part of unqualified coal raw materials can be shattered, and meanwhile, the problem that the coal raw materials block the screen 83 is effectively avoided, when unqualified coal raw materials are discharged, the air pipe 87 slightly loosens the coal raw materials to be processed again after the returned materials are processed, so that the quantity of pulverized coal entering the screw conveyor can be reduced as much as possible,

a method for operating a coal chemical industry feeding device, which operates the coal chemical industry raw material through the coal chemical industry feeding device of any one of claims 1 to 7, the method comprising the following steps:

s1, crushing: the coal raw material is conveyed into the crushing cavity 2 through the screw conveyer 91, is subjected to forward and reverse crushing through the two groups of crushing cutters 57, and is subjected to blanking through controlling the electric push rod 63 to open the unsealing door plate 61.

S2, rolling: the primarily crushed coal raw materials downwards enter the conveyor belt 71 along the inner wall of the conveying chute 6, then are conveyed to the upper part of the feed inlet of the screen drum 81 along with the starting of the conveyor belt 71, and simultaneously, the three rolling rods 72 synchronously rotate to further crush and roll the crushed coal raw materials, and each part of the coal raw materials can be further crushed by a progressive rolling mode.

S3, screening: the coal raw material that gets into screen cloth 83 top is followed a sieve section of thick bamboo 81 and is vibrated, and along with the continuous downstream of coal raw material, this vibration frequency presents the trend of reinforcing gradually, make the crushing tiny particle of mixing in the coal raw material have regrinding possibility, unable kibbling coal raw material tiny particle gets into screw conveyer 91's inside once more through the guide of guide board 93 and smashes once more, and qualified coal raw material gets into sack discharging pipe 85 after the screening in, feed next process equipment.

The operation method disclosed by the invention has the advantages that the coal raw materials are sequentially processed and fed in a grading manner, the feeding efficiency is enhanced, particularly, the crushing effect of the coal raw materials after the crushing and rolling steps is better, the quantity of unqualified coal raw materials is greatly reduced during screening, meanwhile, the unqualified coal raw materials are automatically processed again without manual operation, the process flow is optimized, and the practical use is facilitated.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a coal industry feeder, includes shell (1), its characterized in that: a crushing cavity (2), a rolling cavity (3) and a screening cavity (4) are formed in the shell (1) from top to bottom, the crushing cavity (3) is of a circular structure, a crushing assembly (5) is arranged in the crushing cavity (3), a material conveying groove (6) is formed between the bottom of the crushing cavity (3) and the rolling cavity (3), a rolling assembly (7) is arranged in the rolling cavity (3), the rolling cavity (3) is communicated with the screening cavity (4), and a screening assembly (8) and a material returning assembly (9) are arranged in the screening cavity (4);

the crushing assembly (5) comprises a driving groove (51) and a motor I (52) fixedly installed inside the driving groove (51), an output shaft of the motor I (52) is fixedly connected with a driving shaft (53) through a coupler, a driving gear I (54) and a driving gear II (59) are arranged on the circumferential side of the driving shaft (53), a crushing inner shaft (55) is arranged inside the crushing cavity (2), a crushing outer shaft (56) is sleeved outside the crushing inner shaft (55), one end of the crushing inner shaft (55) is rotatably connected with the inner wall of the crushing cavity (2) through a bearing, the other end of the crushing inner shaft (55) extends into the driving groove (51) and is rotatably connected with the inner wall of the driving groove (51) through a bearing II, the crushing inner shaft (55) is rotatably connected with the crushing outer shaft (56) through a bearing III, and two groups of crushing cutters (57) are arranged outside the crushing inner shaft (55) and the crushing outer shaft (56), and a first driven gear (58) is arranged at the position, corresponding to the first driving gear (54), of the circumferential side of the crushing inner shaft (55), the first driven gear (58) is meshed with the first driving gear (54), a second driven gear (510) is arranged at the position, corresponding to the second driving gear (59), of the circumferential side of the crushing outer shaft (56), a reversing gear (511) is arranged between the second driven gear (510) and the second driving gear (59), and the reversing gear (511) is respectively meshed with the second driven gear (510) and the driving gear (59).

2. The coal chemical industry feed device of claim 1, wherein: every group the quantity of stirring garrulous cutter (57) sets up to a plurality of, and a plurality of stirring garrulous cutter (57) is the circumference array and distributes the setting in the circumference side of stirring outer axle (56), the middle part of reversing gear (511) is run through and is provided with back shaft (512), the one end that reversing gear (511) were kept away from in back shaft (512) is passed through the bearing and is rotated four with the inner wall of driving groove (51) and be connected.

3. The coal chemical industry feed device of claim 1, wherein: the inside of defeated silo (6) is provided with and seals door plant (61), the inner wall of defeated silo (6) is provided with slide (62), seal door plant (61) and transversely peg graft in slide (62), and the one end of sealing door plant (61) is provided with electric putter (63) the top of sealing door plant (61) is provided with soft layer (64), soft layer (64) are the arc structure, and soft layer (64) are made for elastic material.

4. The coal chemical industry feed device of claim 1, wherein: roll subassembly (7) including conveyer belt (71), three pressure bar (72) and motor two (73), three pressure bar (72) are the equidistance and distribute the setting in the top of conveyer belt (71), and one of them output shaft fixed connection of pressure bar (72) and motor two (73), adjacent two connect through belt transmission between pressure bar (72), the perpendicular distance of pressure bar (72) bottom between apart from conveyer belt (71) upper surface is from the right side to the left side and degressive the setting in proper order.

5. The coal chemical industry feed device of claim 1, wherein: screening subassembly (8) are including the slope install at the inside sieve section of thick bamboo (81) of screening chamber (4) and install vibrating motor (82) in sieve section of thick bamboo (81) bottom the inside of sieve section of thick bamboo (81) can be dismantled and be connected with screen cloth (83), the top of screening chamber (4) is provided with three counterattack board (84), and is three counterattack board (84) splice each other, and counterattack board (84) are located the top of screen cloth (83), and is three the bottom of counterattack board (84) is from the perpendicular distance of screen cloth (83) upper surface and is descending the setting in proper order from the left hand right hand side, the discharge gate of sieve section of thick bamboo (81) is provided with two, is located the discharge gate of sieve section of thick bamboo (81) bottom is provided with sack discharging pipe (85), feed back subassembly (9) fixed mounting is in the top discharge gate department of screen cloth (.

6. The coal chemical industry feed device of claim 5, wherein: feed back subassembly (9) are including screw conveyer (91), the top discharge gate of screw conveyer (91) is linked together through the connecting pipe with the open-top of smashing chamber (2), and the bottom discharge gate of screw conveyer (91) is provided with two, one of them the discharge gate of screw conveyer (91) is provided with feed hopper (92), the top discharge gate department of sieve section of thick bamboo (81) is provided with guide board (93), guide board (93) insert in screw conveyer (91) another discharge gate, the position that the discharge gate of screw conveyer (91) corresponds guide board (93) is provided with sealed cloth (94).

7. The coal chemical industry feed device of claim 5, wherein: the inner wall of the screening cavity (4) is provided with a fan (86) corresponding to a discharge port at the top of the screen drum (81), an air outlet end of the fan (86) is communicated with an air pipe (87), and the air pipe (87) is obliquely arranged above the screen (83).

8. An operation method of a coal chemical industry feeding device is characterized in that: the coal chemical industry feedstock is operated by the coal chemical industry feeding device of any one of claims 1 to 7, and the operation method comprises the following steps:

s1, crushing: the coal raw material is conveyed into the crushing cavity (2) through the screw conveyor (91), and is subjected to forward and reverse crushing through the two groups of crushing cutters (57), and the purpose of blanking is achieved by controlling the electric push rod (63) to open the unsealing door plate (61).

S2, rolling: the coal raw materials after preliminary crushing enter a conveyor belt (71) downwards along the inner wall of a conveying chute (6), then are conveyed to the upper part of a feed inlet of a screen drum (81) along with the starting of the conveyor belt (71), and simultaneously, three rolling rods (72) synchronously rotate to further crush and roll the crushed coal raw materials, and each part of the coal raw materials can be further crushed by a progressive rolling mode.

S3, screening: the coal raw material that gets into screen cloth (83) top is followed a sieve section of thick bamboo (81) and is vibrated, and along with the continuous downstream of coal raw material, this vibration frequency presents the trend of reinforcing gradually, make the crushing tiny particle of mixing in the coal raw material have regrinding's possibility, the inside that unable kibbling coal raw material tiny particle reentrant screw conveyer (91) through the guide of guide board (93) is smashed again, and in the qualified coal raw material entering sack discharging pipe (85) after the screening, feed next process equipment.

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