CN114345484A

CN114345484A - Raw material crushing device for denitration catalyst and operation method thereof

Info

Publication number: CN114345484A
Application number: CN202210060210.4A
Authority: CN
Inventors: 谭佳沅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-04-15
Anticipated expiration: 2042-01-19
Also published as: CN114345484B

Abstract

The invention discloses a raw material crushing device for a denitration catalyst and an operation method thereof, wherein the raw material crushing device comprises a storage bin, the storage bin is provided with a feed inlet, an inclined plate and a transverse plate, the inclined plate and the transverse plate are respectively provided with an upper opening and a lower opening, and the inclined plate is connected with the transverse plate through a vertical plate; the inclined plate is rotatably connected with an upper blade through a rotating shaft, the transverse plate is rotatably connected with a lower blade through a main shaft, a motor is arranged in the storage bin, and the main shaft and the rotating shaft are driven through a gear assembly; the bin is rotatably connected with a rocking plate, the rocking plate is provided with a fine grid and a coarse grid, and a finished product box and a transition box are respectively arranged below the fine grid and the coarse grid; the lower end of the main shaft is provided with a first gear, the storage bin is rotatably connected with a second gear which is used for being meshed with the first gear for transmission, a vibration assembly is arranged between the second gear and the rocking plate, and an anti-blocking assembly is arranged between the first gear and the rocking plate. Provided are a denitration catalyst raw material crushing device with higher crushing efficiency and higher screening efficiency after raw material crushing, and an operation method thereof.

Description

Raw material crushing device for denitration catalyst and operation method thereof

Technical Field

The invention relates to the field of denitration catalysts, in particular to a raw material crushing device for a honeycomb denitration catalyst in a production process and an operation method thereof.

Background

The denitration catalyst is mainly applied to an SCR denitration system of a power plant, promotes a reducing agent to selectively react with nitrogen oxides in flue gas at a certain temperature in the SCR reaction process, and is an important way for preventing environmental pollution. Currently, the denitration catalyst can be classified into three types: plate type, honeycomb type and corrugated plate type, wherein plate type and honeycomb type are more, and the denitration catalyst is mainly produced by extrusion molding. In order to ensure the extrusion performance of the denitration catalyst, the raw materials are required to be fully smashed, so that the auxiliary material-doped pug can be uniformly mixed, and the problem of mold blockage during extrusion of the pug is avoided; however, the device for crushing raw materials in the prior art has the phenomenon of uneven crushing effect, such as a raw material crushing device for denitration catalyst published by the national intellectual property office, bulletin number: CN 208373242U, cutting the raw material in the crushing barrel through a blade, blowing the crushed raw material into a crushed raw material temporary storage cavity at the bottom of the crushing barrel through wind power generated when the blade rotates, and outputting the crushed raw material out of the crushing barrel through a fan; in order to screen the size of the particles of the chopped raw materials, screens are additionally arranged at the positions of the crushing barrel and the fan, so that the raw materials with larger particles are prevented from passing through. When the device is used for crushing raw materials, screen blockage is easy to generate, and the discharge efficiency of the cut raw materials is reduced; because the crushing barrel is cylindrical, the chopped raw materials are accumulated in an arc area at the bottom, and if the chopping speed of the blades is increased, the accumulation and blockage of the raw materials at the bottom are easily caused, so that the efficiency of chopping the raw materials is limited. In general, the raw material crushing device in the prior art has the defects of low crushing efficiency and low screening efficiency after crushing the raw materials. In addition, the used denitration catalyst is usually directly discarded, that is, the waste denitration catalyst is extremely easy to cause resource waste and environmental pollution.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a raw material crushing device for denitration catalysts and an operation method thereof, wherein the raw material crushing device has higher chopping efficiency and higher screening efficiency after crushing raw materials, and can improve the utilization rate of waste catalysts.

The technical scheme of the invention is to provide a raw material crushing device of a denitration catalyst, which has the following structure: the material storage bin comprises a material storage bin, wherein a feeding hole is formed above the material storage bin, an inclined plate and a transverse plate are arranged inside the material storage bin at intervals, the inclined plate is positioned above the transverse plate, the inclined plate is obliquely arranged in the material storage bin, an upper opening is formed in one side, away from the feeding hole, of the inclined plate, a lower opening is formed in the transverse plate below the upper opening, and the inclined plate is connected with the transverse plate through a vertical plate; the inclined plate is rotatably connected with an upper blade through a rotating shaft, and the plane where the upper blade rotates is parallel to the inclined plate; the transverse plate is rotationally connected with a lower blade through a main shaft, a motor for driving the main shaft to rotate is arranged in the storage bin, and the main shaft and the rotating shaft are driven through a gear assembly; the bin is rotatably connected with a rocking plate below the transverse plate through a hinge point, the hinge point is positioned below the lower opening, the rocking plate is provided with a thin grating in a region below the lower opening, the rocking plate is provided with a thick grating in a region far away from the lower opening, and the width of an open slot on the thin grating is smaller than that of an open slot on the thick grating; a finished product box and a transition box are respectively arranged below the fine grid and the coarse grid in the storage bin; the lower tip of main shaft is equipped with first gear, and the feed bin rotates through the support to be connected with and is used for with the driven second gear of first gear meshing, is equipped with between second gear and the rocking plate to be used for driving the rocking plate wobbling vibrations subassembly in the feed bin, is equipped with the anti-clogging subassembly that is used for clearing up the fine grid between first gear and the rocking plate.

As a preferred choice of the invention, the transverse plate is horizontally arranged in the storage bin, and the inclined angle between the inclined plate and the transverse plate is 15 degrees.

Preferably, the free end of the upper blade extends to the upper opening area, and the free end of the lower blade extends to the lower opening area.

As an improvement of the invention, the vibration component is that a first magnet is embedded on the second gear, and the axial distance between the first magnet and the second gear is greater than zero; the second magnet is embedded under the first magnet of the rocking plate, the first magnet and the second magnet are mutually repulsive, and the second magnet is arranged at the end part of the rocking plate far away from the hinge point; a cylindrical pin used for abutting against or separating from the rocking plate is arranged above the rocking plate of the storage bin, and a tension spring used for pulling the rocking plate to abut against the cylindrical pin is arranged between the storage bin and the rocking plate; when the second magnet is positioned right below the first magnet, the repulsive force between the first magnet and the second magnet is larger than the pulling force of the tension spring on the rocking plate; in the vertical direction, the cylindrical pin position is lower than the hinge point position.

As an improvement of the invention, the anti-blocking component is that the rocking plate is provided with a first opening at the middle position between the thick grating and the thin grating, the first opening is fixedly connected with a supporting block, the supporting block is connected with a sliding block in a sliding way through a dovetail groove, the sliding block is connected with a frame below the thin grating, and the frame is provided with a top strip for being inserted into the opening of the thin grating; a third magnet and a fourth magnet are embedded on the first gear, the distance between the third magnet and the first gear axis and the distance between the fourth magnet and the first gear axis are greater than zero, and the distances between the third magnet and the first gear axis and the distances between the fourth magnet and the first gear axis are equal; and a fifth magnet is embedded on the sliding block, the fifth magnet and the third magnet attract each other, and the fifth magnet and the third magnet repel each other.

As an improvement of the invention, the motion direction of the slide block is vertical to the rocking plate, and the frame is arranged in parallel with the rocking plate.

As an improvement of the invention, the upper stop block which is used for abutting against or separating from the upper end part of the sliding block is arranged above the rocking plate of the storage bin, and the lower stop block which is used for abutting against or separating from the lower end part of the sliding block is arranged below the rocking plate of the storage bin.

After the structure is adopted, compared with the prior art, the raw material crushing device for the denitration catalyst is characterized in that the raw material is poured into the bin from the feeding hole, the raw material can be preliminarily crushed by the rotating upper blade in the process of sliding down along the inclined plate, the large-particle raw material is preliminarily cut small, and the smoothness of downward sliding of the raw material can be improved by arranging the inclined plate in an inclined manner; the rotating lower blade is used for secondarily chopping the raw materials, so that the crushing effect of the raw materials can be improved, and after primary chopping, the particle size of the raw materials is reduced, so that the load and impact of the raw materials falling from the upper opening to the lower opening on the lower blade are also smaller, the crushing effect of the raw materials is improved, and the load required to be borne by the lower blade can be reduced to prolong the service life of the lower blade; in a word, the crushing effect of the raw materials can be improved by chopping the raw materials twice through the upper blade and the lower blade; after being cut, the raw materials fall onto the rocking plate and then are screened by the rocking plate, the raw materials with the particle size meeting the requirement pass through the fine grid and fall into the finished product box, the raw materials with the particle size not meeting the requirement slide to the coarse grid along the slope of the rocking plate and fall into the transition box, and then the raw materials in the transition box are poured into the feeding hole to be cut again; wherein, the in-process of blade shredding raw materials under the main shaft drives, can also realize rocking the board and strike the cylindric lock periodically, and then improves the screening effect and the screening efficiency of thin grid, thick grid to the raw materials on the rocking board, and sliding connection's top strip can also effectively clear up in order to prevent that thin grid from taking place blocking phenomenon on the rocking board to thin grid, and then improves the screening effect and the efficiency of rocking board to the raw materials on the whole. In conclusion, the invention provides the raw material crushing device for the denitration catalyst, which has higher chopping efficiency, higher screening efficiency after crushing the raw material and can improve the utilization rate of the waste catalyst.

The technical scheme of the invention is to provide an operation method of a denitration catalyst raw material crushing device, which comprises the following steps:

a: the denitration catalyst raw material is poured from a feeding hole, the raw material flows to an upper opening along the inclination of an inclined plate, the raw material is primarily chopped by a rotating upper blade in the flowing process of the raw material, and the primarily chopped raw material falls from the upper opening to a lower opening and enters the lower half part of a storage bin;

b: when the primarily chopped raw material flow passes through the lower opening, the rotating lower blade can perform secondary chopping on the raw material, and the raw material subjected to secondary chopping falls onto a rocking plate for screening;

c: when the raw materials after twice chopping flow through the fine grids, the raw materials with the particle size meeting the required value can fall into a finished product box through the fine grids; when the first magnet on the second gear rotates to the position of the second magnet, the first magnet and the second magnet are matched to drive the rocking plate to rotate, and the rocking plate is separated from the cylindrical pin; when the first magnet is far away from the second magnet, the tension spring pulls the rocking plate to reset to the position of the cylindrical pin, and the speed of the raw materials flowing to the cylindrical pin from the hinge point can be increased in the process of rocking the rocking plate; the raw materials with the particle size exceeding the required value fall into the transition box through the coarse grating; when the third magnet and the fourth magnet on the first gear are matched with the fifth magnet on the sliding block, the top strips on the frame are driven to periodically enter and exit the openings on the fine grids, and further the raw materials with the particle sizes meeting the requirement value are accelerated to be discharged from the fine grids to a finished product box;

d: and pouring the raw materials in the transition box into the feeding hole again for chopping again, and transferring the raw materials in the finished product box to the next procedure.

After the method is adopted, compared with the prior art, the operation method of the denitration catalyst raw material crushing device can realize twice crushing of the upper blade and the lower blade on the raw materials, improves the denitration catalyst raw material crushing effect, can effectively screen the crushed raw materials through the swinging rocking plate, ensures that the raw materials in a finished product box meet the production requirements, can clean a fine grid area through the top strip connected to the rocking plate in a sliding mode, improves the effectiveness and the continuity of the rocking plate in the screening work, and further improves the screening efficiency of the crushed raw materials. In addition, in order to improve the utilization rate of the waste catalyst, impurities such as carbon dust in the waste catalyst can be screened in a powder form, catalyst fragments required by production are left, and the catalyst fragments can be changed into clean raw materials through a subsequent cleaning process to manufacture a brand-new honeycomb denitration catalyst. In conclusion, the invention provides the operation method of the denitration catalyst raw material crushing device, which has higher crushing efficiency, higher screening efficiency after crushing the raw material and can improve the utilization rate of the waste catalyst.

Drawings

Fig. 1 is a schematic structural view of a raw material crushing apparatus for a denitration catalyst of the present invention.

FIG. 2 is a schematic structural view of a first gear, a second gear and a rocking plate according to the present invention.

FIG. 3 is a schematic view of the structure of the rocking plate of the present invention.

Fig. 4 is a schematic structural view of the top strip of the frame in the present invention.

Shown in the figure: 1. the device comprises a storage bin, 2, a feeding hole, 3, an inclined plate, 4, a transverse plate, 5, an upper opening, 6, a lower opening, 7, a vertical plate, 8, a rotating shaft, 9, an upper blade, 10, a lower blade, 11, a main shaft, 12, a hinge point, 13, a rocking plate, 14, a fine grid, 15, a coarse grid, 16, a finished product box, 17, a transition box, 18, a first gear, 19, a support, 20, a second gear, 21, a first magnet, 22, a second magnet, 23, a cylindrical pin, 24, a tension spring, 25, a first opening, 26, a support block, 27, a sliding block, 28, a frame, 29, a top bar, 30, a third magnet, 31, a fourth magnet, 32, a fifth magnet, 33, an upper stop block, 34, a lower stop block, 35 and a second opening.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in the figure, the raw material crushing device for the denitration catalyst comprises a bin 1, wherein the bin 1 is of a cylindrical structure, the bin 1 is made of stainless steel, the specific size of the bin 1 can be determined according to the crushing quantity of raw materials, a feed inlet 2 is arranged above the bin 1, the feed inlet 2 is arranged at the outer edge above the charging barrel 1, and the feed inlet 2 is vertically arranged; an inclined plate 3 and a transverse plate 4 are arranged in the bin 1 at intervals, the inclined plate 3 is positioned above the transverse plate 4, the inclined plate 3 is obliquely arranged in the bin 1, an upper opening 5 is formed in one side, away from the feed inlet 2, of the inclined plate 3, a lower opening 6 is formed in the transverse plate 4 below the upper opening 5, and the inclined plate 3 is connected with the transverse plate 4 through a vertical plate 7; the inclined plate 3 is rotatably connected with upper blades 9 through a rotating shaft 8, the rotating shaft 8 is rotatably connected to the inclined plate 3 through a bearing, the number of the upper blades 9 is 6, the 6 upper blades 9 are uniformly distributed on the outer peripheral wall of the rotating shaft 8 around the axis of the rotating shaft 8, the upper blades 9 are welded with the outer wall of the rotating shaft 8, and the plane where the upper blades 9 rotate is parallel to the inclined plate 3; a push rod is arranged above the upper blade 9, when the upper blade 9 rotates around the rotating shaft 8, the push rod rotates along with the upper blade 9, so that the push rod can play a role of pushing the raw materials to flow towards the direction of the upper opening 5, or the push rod can accelerate the speed of the raw materials flowing from the feeding hole 2 to the upper opening 5; on the same vertical plane, the feed inlet 2 and the upper opening 5 are respectively positioned at two sides of the rotating shaft 8, so that raw materials can be ensured to be primarily chopped by the rotating upper blade 9 in the process that the raw materials flow from the feed inlet 2 to the upper opening 5, and the chopping efficiency of the raw materials by the upper blade 9 is improved; the transverse plate 4 is rotatably connected with lower blades 10 through a main shaft 11, the main shaft 11 is rotatably connected onto the transverse plate 4 through a bearing, the number of the lower blades 10 is 12, the 12 lower blades 10 are uniformly distributed on the outer peripheral wall of the main shaft 11 around the axis of the main shaft 11, the lower blades 10 are welded on the outer wall of the main shaft 11, a motor for driving the main shaft 11 to rotate is arranged in the storage bin 1, and the main shaft 11 and the rotating shaft 8 are driven through a gear assembly; the transverse plate 4 is provided with a transmission shaft through a bearing, the lower end of the transmission shaft is in transmission with the main shaft 11 through a gear, and the upper end of the transmission shaft is in transmission with the rotating shaft 8 through a bevel gear, so that the rotating shaft 8 can be driven to rotate when the main shaft 11 rotates; the bin 1 is rotatably connected with a rocking plate 13 below a transverse plate 4 through a hinge point 12, the hinge point 12 is positioned below a lower opening 6, the rocking plate 13 is provided with a thin grating 14 in a region below the lower opening 6, the rocking plate 13 is provided with a thick grating 15 in a region far away from the lower opening 6, and the width of an opening groove on the thin grating 14 is smaller than that of an opening groove on the thick grating 15; for example, the fine grating 14 and the coarse grating 15 refer to that a plurality of open grooves through which the chopped raw materials can pass are formed in the rocking plate 13, the open grooves are in a strip-shaped structure, the width value of the open grooves on the fine grating 14 is 0.3cm, and the width value of the open grooves on the coarse grating 15 is 0.7 cm; a finished product box 16 and a transition box 17 are respectively arranged below the fine grid 14 and the coarse grid 15 of the storage bin 1; the lower end of the main shaft 11 is provided with a first gear 18, the silo 1 is rotatably connected with a second gear 20 which is used for being meshed with the first gear 18 for transmission through a support 19, a vibration component which is used for driving the rocking plate 13 to swing in the silo 1 is arranged between the second gear 20 and the rocking plate 13, and an anti-blocking component which is used for cleaning the fine grids 14 is arranged between the first gear 18 and the rocking plate 13. The horizontal setting of diaphragm 4 is in feed bin 1, and diaphragm 4 is perpendicular with 1 axis direction of feed bin promptly, and the contained angle of swash plate 3 and diaphragm 4 is 15.

The free end of the upper blade 9 is extended to the area of the upper opening 5, that is, the free end of the upper blade 9 is extended to the position of the inner peripheral wall of the storage bin 1, and a gap is reserved between the tail end of the upper blade 9 and the inner peripheral wall of the storage bin 1; the free end of the lower blade 10 is extended to the area of the lower opening 6, namely the free end of the lower blade 10 is extended to the position of the inner peripheral wall of the storage bin 1, and a gap is reserved between the tail end of the lower blade 10 and the inner peripheral wall of the storage bin 1.

The vibration component means that the second gear 20 is embedded with a first magnet 21, and the distance from the first magnet 21 to the axis of the second gear 20 is greater than zero; the rocking plate 13 is embedded with a second magnet 22 under the first magnet 21, the first magnet 21 and the second magnet 22 repel each other, and the second magnet 22 is arranged at the end part of the rocking plate 13 far away from the hinge point 12; for example, if the first magnet 21 has its N-pole facing downward and S-pole facing upward, the second magnet 22 has its N-pole facing upward and S-pole facing downward, as shown in fig. 2; conversely, if the N pole of the first magnet 21 is upward and the S pole is downward, the N pole of the second magnet 22 is downward and the S pole is upward; a cylindrical pin 23 used for abutting against or separating from the rocking plate 13 is arranged above the rocking plate 13 of the stock bin 1, and a tension spring 24 used for pulling the rocking plate 13 to abut against the cylindrical pin 23 is arranged between the stock bin 1 and the rocking plate 13; when the second magnet 22 is positioned right below the first magnet 21, the repulsive force between the first magnet 21 and the second magnet 22 is larger than the pulling force of the tension spring 24 on the rocker plate 13; in the vertical direction, cylindric lock 23 position is less than pin joint 12 position, that is to say, when rocking plate 13 supports and leans on in cylindric lock 23, rocking plate 13 is the low high tilt state in the right side, and the thin grid 14 region is higher than thick grid 15 region on rocking plate 13, is favorable to the raw materials after the chopping like this to flow from thin grid 14 region to thick grid 15 region, and then does benefit to the screening work to the raw materials after the chopping. Specifically, the rocking plate 13 is provided with a second opening 35 for installing the second magnet 22 in the area of the thick grid 15, when the first magnet 21 rotates to above the second magnet 22 along with the second gear 20, the second magnet 22 and the rocking plate 13 move downwards under the action of the repulsive force between the first magnet 21 and the second magnet 22, namely, the rocking plate 13 rotates anticlockwise around the hinge point 12 against the constraint of the tensile force of the tension spring 24, and the rocking plate 13 is separated from the cylindrical pin 23; for example, when the tension of the rocker plate 13 by the tension spring 24 is set to 10N, and the repulsive force between the first magnet 21 and the second magnet 22 is set to 50N, when the first magnet 21 rotates to a position above the second magnet 22, the second magnet 22 can be driven to overcome the tension of the tension spring 24 to drive the rocker plate 13 to rotate counterclockwise; when the first magnet 21 rotates along with the second gear 20 and leaves above the second magnet 22, the tension spring 24 can quickly pull the rocker plate 13 to abut against the cylindrical pin 23; therefore, the rotation, shaking and vibration of the rocking plate 13 periodically enables the chopped raw materials on the rocking plate 13 to flow along the slope to the left and lower direction, so that the speed of screening the chopped raw materials by the fine grids 14 and the coarse grids 15 is increased, and the chopped raw materials can be prevented from being stacked in the area of the fine grids 14. The cooperation between the first magnet 21 on the second gear 20 and the second magnet 22 on the rocking plate 13 exists only when the first magnet 21 is located right above the second magnet 22, and once the first magnet 21 leaves the second magnet 22, the repulsive force between the first magnet 21 and the second magnet 22 will suddenly drop instantly, so that the rocking plate 13 is quickly reset to the position of the cylindrical pin 23 under the tensile force of the tension spring 24, and the impact between the rocking plate 13 and the cylindrical pin 23 is rigid impact, so that the vibration effect on the rocking plate 13 is optimal, further, the chopped raw materials on the rocking plate 13 are greatly vibrated, and the raw materials are prevented from being stacked on the rocking plate 13.

The anti-blocking component is that the rocking plate 13 is provided with a first opening 25 in the middle of the thick grating 15 and the thin grating 14, the first opening 25 is fixedly connected with a supporting block 26, the supporting block 26 is connected with a sliding block 27 in a sliding way through a dovetail groove, the sliding block 27 is connected with a frame 28 below the thin grating 14, the frame 28 is provided with a top strip 29 inserted into the opening of the thin grating 14, the size of the top strip 29 is smaller than that of the open slot on the thin grating 14 so as to ensure that the top strip 29 can enter and exit the open slot on the thin grating 14, namely, the sliding block 27 can drive the top strip 29 on the frame 28 to slide relative to the rocking plate 13; the first gear 18 is embedded with a third magnet 30 and a fourth magnet 31, the distance between the third magnet 30 and the fourth magnet 31 and the axis of the first gear 18 is greater than zero, and the distance between the third magnet 30 and the fourth magnet 31 and the axis of the first gear 18 is equal; a fifth magnet 32 is embedded on the slide block 27, the fifth magnet 32 and the third magnet 30 attract each other, and the fifth magnet 32 and the third magnet 30 repel each other; the upper stop block 33 which is used for abutting against or separating from the upper end part of the sliding block 27 is arranged above the rocking plate 13 of the stock bin 1, and the lower stop block 34 which is used for abutting against or separating from the lower end part of the sliding block 27 is arranged below the rocking plate 13 of the stock bin 1. The fourth magnet 31 has a downward N-pole and an upward S-pole, the third magnet has an upward N-pole and a downward S-pole, and the fifth magnet has an upward N-pole and a downward S-pole; when the third magnet 30 rotates to a position above the fifth magnet 32, the third magnet 30 drives the slider 27 embedded with the fifth magnet 32 to slide upwards on the supporting block 26 until the upper end of the slider 27 abuts against the upper stop 33, and in the process of sliding the slider 27 upwards, the top strip 29 on the frame 28 enters the opening on the fine grid 14, so that the blocked opening on the fine grid 14 is dredged; when the fourth magnet 31 rotates to a position above the fifth magnet 32, the repulsive force between the fourth magnet 31 and the fifth magnet 32 can ensure that the sliding block 27 moves downwards to the position of the lower stop block 34, so that the opening on the fine grid 14 is opened to allow the chopped raw materials to pass through and fall into the finished product box; the acting forces of the third magnet 30 and the fourth magnet 31 on the fifth magnet 32 and the slider 27 finally act on the upper stopper 33 and the lower stopper 34, which does not affect the rotation of the rocker 13, and the boundary between the slider 27 and the supporting block 26 is connected with non-woven fabrics, so that the cut raw materials are prevented from entering the dovetail groove between the slider 27 and the supporting block 26 to affect the movement of the slider 27.

The direction of movement of the slider 27 is perpendicular to the rocking plate 13, and the frame 28 is arranged parallel to the rocking plate 13, thereby ensuring that the top strip 29 on the frame 28 can smoothly enter the opening on the fine grid 14.

Wherein, a coarse crushing device for crushing raw materials can be arranged at the position of the feed inlet 2, namely, the position of the feed inlet 2 is rotationally connected with four rollers, and the rollers are rotationally connected at the position of the feed inlet 2 through bearings; the four rollers are arranged in parallel, a plurality of rough crushing cutters are arranged on each roller, the rough crushing cutters on the rollers are arranged in a crossing mode, collision and contact are avoided between the rough crushing cutters, the rough crushing cutters can be adjusted according to actual production requirements, and the rollers are driven by a motor, a speed reducer and a transmission gear to rotate. A dust removal system can be additionally arranged in the crushing process, the dust removal system consists of a dust remover and a pipeline, and only a dust removal interface needs to be additionally arranged above the feed port and is connected to the inlet of the dust remover through the pipeline for collecting dust at the feed port. In addition, the entire apparatus can be controlled by a PLC control system.

The operation method of the raw material crushing device for the denitration catalyst comprises the following steps:

a: starting a power supply of a control cabinet, starting a dust remover and a fan on a touch screen, inputting the rotating speed of a roller motor and the rotating speed of a conveyor motor, putting a scrapped catalyst unit into a roller position for rough breaking treatment, dropping the rough broken denitration catalyst onto an inclined plate 3, and performing subsequent fine breaking treatment; or the denitration catalyst raw material can be poured from the feeding hole 2, the raw material flows to the direction of the upper opening 5 along the inclination of the inclined plate 3, the raw material can be primarily chopped by the rotating upper blade 9 in the flowing process of the raw material, and the primarily chopped raw material falls from the upper opening 5 to the lower opening and enters the lower half part of the storage bin 1;

b: when the primarily chopped raw material flows through the lower opening 6, the rotating lower blade 10 can perform secondary chopping on the raw material, and the raw material subjected to secondary chopping falls onto the rocking plate 13 for screening;

c: when the raw materials after twice shredding pass through the fine screen 14, the raw materials with the particle size meeting the required value can fall into the finished product box 16 through the fine screen 14; when the first magnet 21 on the second gear 20 rotates to the position of the second magnet 22, the first magnet and the second magnet 22 are matched to drive the rocking plate to rotate, and the rocking plate 13 is separated from the cylindrical pin 23; when the first magnet 21 is far away from the second magnet 22, the tension spring 24 pulls the rocking plate 13 to return to the position of the cylindrical pin 23, and the speed of the raw materials flowing from the hinge point 12 to the cylindrical pin 23 is increased in the swinging process of the rocking plate 13; the raw material with the particle size exceeding the required value falls to the transition box 17 through the coarse grid 15; the third magnet 30 and the fourth magnet 31 on the first gear 18 drive the top strip 29 on the frame 28 to periodically enter and exit the opening on the fine grid 14 when the fifth magnet 32 on the slide block 27 is matched, so that the raw material with the particle size meeting the required value is discharged from the fine grid 14 to the finished product box 16;

d: the raw material in the transition box 17 is poured into the feed inlet 2 again for chopping again, and the raw material in the finished product box 16 is transferred to the next process.

In general, the device can realize the recycling of the waste catalyst and the crushing of the raw materials; specifically, the honeycomb denitration catalyst is extruded and molded by processing the waste catalyst through a coarse crushing device and then performing subsequent fine crushing. The device can improve the production efficiency and reduce the labor intensity of workers, the workers only need to pour the catalyst unit into the storage bin through the forklift, and the rest processes can be automatically controlled; moreover, the dust pollution of operators is reduced, so that the production environment is more sanitary.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a raw materials reducing mechanism of denitration catalyst, it includes feed bin (1), and feed bin (1) top is equipped with feed inlet (2), its characterized in that: an inclined plate (3) and a transverse plate (4) are arranged in the bin (1) at intervals, the inclined plate (3) is positioned above the transverse plate (4), the inclined plate (3) is obliquely arranged in the bin (1), an upper opening (5) is formed in one side, away from the feed inlet (2), of the inclined plate (3), a lower opening (6) is formed in the transverse plate (4) below the upper opening (5), and the inclined plate (3) is connected with the transverse plate (4) through a vertical plate (7); the inclined plate (3) is rotatably connected with an upper blade (9) through a rotating shaft (8), and the plane where the upper blade (9) rotates is parallel to the inclined plate (3); the transverse plate (4) is rotatably connected with a lower blade (10) through a main shaft (11), a motor for driving the main shaft (11) to rotate is arranged in the storage bin (1), and the main shaft (11) and the rotating shaft (8) are driven through a gear assembly; the bin (1) is rotatably connected with a rocking plate (13) below a transverse plate (4) through a hinge point (12), the hinge point (12) is positioned below a lower opening (6), a fine grid (14) is arranged in an area, positioned below the lower opening (6), of the rocking plate (13), a thick grid (15) is arranged in an area, far away from the lower opening (6), of the rocking plate (13), and the width of an upper opening groove of the fine grid (14) is smaller than that of an upper opening groove of the thick grid (15); a finished product box (16) and a transition box (17) are respectively arranged below the fine grid (14) and the coarse grid (15) of the storage bin (1); the lower tip of main shaft (11) is equipped with first gear (18), and feed bin (1) is connected with through support (19) rotation and is used for with first gear (18) meshing driven second gear (20), is equipped with between second gear (20) and rocking plate (13) to be used for driving rocking plate (13) wobbling vibrations subassembly in feed bin (1), is equipped with between first gear (18) and rocking plate (13) to be used for clearing up the anti-clogging subassembly of thin grid (14).

2. The denitration catalyst raw material pulverization apparatus according to claim 1, characterized in that: the transverse plate (4) is horizontally arranged in the stock bin (1), and the included angle between the inclined plate (3) and the transverse plate (4) is 15 degrees.

3. The denitration catalyst raw material pulverization apparatus according to claim 1, characterized in that: the free end of the upper blade (9) extends to the area of the upper opening (5), and the free end of the lower blade (10) extends to the area of the lower opening (6).

4. The denitration catalyst raw material pulverization apparatus according to claim 1, characterized in that: a first magnet (21) is embedded on the second gear (20), and the distance from the first magnet (21) to the axis of the second gear (20) is greater than zero; the second magnet (22) is embedded in the rocking plate (13) under the first magnet (21), the first magnet (21) and the second magnet (22) are mutually repelled, and the second magnet (22) is arranged at the end part, far away from the hinge point (12), of the rocking plate (13); a cylindrical pin (23) which is used for abutting against or separating from the rocking plate (13) is arranged above the rocking plate (13) of the stock bin (1), and a tension spring (24) which is used for pulling the rocking plate (13) to abut against the cylindrical pin (23) is arranged between the stock bin (1) and the rocking plate (13); when the second magnet (22) is positioned under the first magnet (21), the repulsive force between the first magnet (21) and the second magnet (22) is larger than the pulling force of the tension spring (24) on the rocking plate (13); in the vertical direction, the position of the cylindrical pin (23) is lower than the position of the hinge point (12).

5. The denitration catalyst raw material pulverization apparatus according to claim 1, characterized in that: a first opening (25) is formed in the rocking plate (13) between the thick grating (15) and the thin grating (14), a supporting block (26) is fixedly connected to the first opening (25), a sliding block (27) is connected to the supporting block (26) in a sliding mode through a dovetail groove, a framework (28) is connected to the sliding block (27) below the thin grating (14), and a top strip (29) used for being inserted into the opening of the thin grating (14) is arranged on the framework (28); a third magnet (30) and a fourth magnet (31) are embedded on the first gear (18), the distance between the third magnet (30) and the fourth magnet (31) and the axis of the first gear (18) is greater than zero, and the distance between the third magnet (30) and the fourth magnet (31) and the axis of the first gear (18) is equal; the slider (27) is embedded with a fifth magnet (32), the fifth magnet (32) and the third magnet (30) attract each other, and the fifth magnet (32) and the third magnet (30) repel each other.

6. The denitration catalyst raw material pulverization apparatus according to claim 5, characterized in that: the moving direction of the slide block (27) is vertical to the rocking plate (13), and the frame (28) is arranged in parallel with the rocking plate (13).

7. The denitration catalyst raw material pulverization apparatus according to claim 5, characterized in that: an upper stop block (33) which is used for abutting against or separating from the upper end part of the sliding block (27) is arranged above the rocking plate (13) of the stock bin (1), and a lower stop block (34) which is used for abutting against or separating from the lower end part of the sliding block (27) is arranged below the rocking plate (13) of the stock bin (1).

8. An operation method of a raw material crushing device for a denitration catalyst comprises the following steps:

a: the denitration catalyst raw material is poured from the feeding hole (2), flows to the upper opening (5) along the inclination of the inclined plate (3), and is primarily chopped by the rotating upper blade (9) in the flowing process of the raw material, and the primarily chopped raw material falls from the upper opening (5) to the lower opening to enter the lower half part of the storage bin (1);

b: when the primarily chopped raw material flows through the lower opening (6), the rotating lower blade (10) can perform secondary chopping on the raw material, and the raw material subjected to secondary chopping falls onto the rocking plate (13) for screening;

c: when the raw materials after twice chopping flow through the fine grating (14), the raw materials with the particle size meeting the required value can fall into the finished product box (16) through the fine grating (14); when the first magnet (21) on the second gear (20) rotates to the position of the second magnet (22), the first magnet and the second magnet (22) are matched to drive the rocking plate to rotate, and the rocking plate (13) is separated from the cylindrical pin (23); when the first magnet (21) is far away from the second magnet (22), the tension spring (24) pulls the rocking plate (13) to reset to the position of the cylindrical pin (23), and the speed of the raw materials flowing to the cylindrical pin (23) from the hinge point (12) can be accelerated in the swinging process of the rocking plate (13); the raw material with the particle size exceeding the required value falls to a transition box (17) through a coarse grid (15); when the third magnet (30) and the fourth magnet (31) on the first gear (18) are matched with the fifth magnet (32) on the sliding block (27), the top strip (29) on the frame (28) is driven to periodically enter and exit the opening on the fine grating (14), and therefore the raw materials with the particle sizes meeting the requirement value are accelerated to be discharged from the fine grating (14) to the finished product box (16);

d: and the raw materials in the transition box (17) are poured into the feeding hole (2) again for re-chopping, and the raw materials in the finished product box (16) are transferred to the next process.