CN120054687A - Raw material crushing device for corundum brick production and crushing method thereof - Google Patents

Abstract

The invention discloses a raw material crushing device for corundum brick production and a crushing method thereof, which relates to the field of corundum brick production and aims to solve the problems that the particle sizes of crushed corundum brick raw materials are different and raw materials are easily piled up between the crushing process and the grinding process, thereby affecting production efficiency and increasing production costs. The invention comprises a frame, a crushing box is fixedly connected to the frame, a crushing chamber, a filter plate and the crushing box are arranged in the crushing box, a feeding chamber is arranged on the side of the filter plate, a feeding pipe is connected below the crushing box, the feeding pipe is fixedly connected to the frame, a vibrating hopper is slidably connected below the feeding pipe, a first discharging pipe is fixedly connected below the vibrating hopper, a through hole is opened on the feeding pipe, and a return material component is connected between the feeding pipe and the crushing box. The advantages are: the raw materials are screened before they are crushed, and after the raw materials are crushed, the return material component can transport large-particle raw materials back to the crushing chamber for secondary crushing, thereby ensuring the crushing effect of the raw materials.

Description

Raw material crushing device for corundum brick production and crushing method thereof

Technical Field

The invention relates to the technical field of corundum brick production, in particular to a raw material crushing device for corundum brick production and a crushing method thereof.

Background

In the production process of corundum bricks, the crushing and grinding of raw materials are two vital links. The traditional production mode is to put the raw materials into a crusher for preliminary crushing, and then send the crushed raw materials into grinding equipment for further refinement treatment.

The crushing of the raw materials is to pour the raw materials into a crusher for treatment, but the granularity is often inconsistent after the raw materials are crushed in the crusher, so that the difficulty of the subsequent grinding process is increased, and the overall production efficiency is influenced; furthermore, the efficiency of the grinding device is generally lower than that of the crushing device, which can reach 10% efficiency, whereas the efficiency of the grinding device is only 1%. This difference in efficiency results in material accumulation between the crushing and grinding processes on a flow line, further affecting overall production efficiency, and because of the mismatch between the crushing and grinding processes, the line often requires additional equipment and labor to handle the accumulated material, which undoubtedly increases production costs.

The utility model discloses "an electric smelting zirconia corundum brick raw materials rubbing crusher in patent of application number" CN202323630804.3", including the rubbing crusher main part, the rubbing crusher main part includes main body frame, feeder hopper and crushing case, and main body frame surrounds the feeder hopper and smashes the case setting, and the feeder hopper sets up in the top of smashing the case, and the one end of feeder hopper is provided with the feed inlet, and the inside of smashing the case is provided with crushing subassembly, grinding subassembly and collecting vat, and the inner wall surface of smashing the case is provided with dust collection subassembly, and dust collection subassembly's inside is provided with the laying dust steamer tray. "this application is through setting up crushing commentaries on classics roller and grinding commentaries on classics roller simultaneously, carry out secondary treatment to the raw materials, make the kibbling more thoroughly of raw materials at certain degree, but cause the piling up of raw materials easily in the grinding component top, cause crushing component and smash the raw materials of incasement to contact repeatedly, increased the raise dust on the contrary like this and produced, broken back raw materials granule is after grinding the grinding component grinding, and can not ensure that the granularity of raw materials is the same, still have partial large granule raw materials to leak down in the parcel of small granule raw materials, in addition, install additional grinding component needs additionally to install a set of driving system in the grinding component below, the manufacturing cost of the equipment of increase.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the raw material crushing device for corundum brick production and the crushing method thereof, and the problems that the production efficiency is affected and the production cost is increased due to the fact that the raw materials are easy to accumulate between the crushing process and the grinding process due to the fact that the granularity of the corundum brick raw materials is different in crushing are effectively solved through the design.

The invention provides the technical scheme that the crushing device comprises a frame, wherein a crushing box is fixedly connected to the frame, a crushing cavity is arranged in the crushing box, a stone crushing assembly is arranged in the crushing cavity, a filter plate is arranged on the side edge of the stone crushing assembly and is connected with the crushing box, a blanking cavity is arranged on the side edge of the filter plate, a conveying pipe is communicated below the crushing box and is fixedly connected with the frame, a vibrating hopper is connected below the conveying pipe in a sliding manner, a first discharging pipe is fixedly connected below the vibrating hopper, a through hole communicated with the vibrating hopper is formed in the conveying pipe, and a feed back assembly is connected between the conveying pipe and the crushing box;

The feed back assembly comprises a spiral feed rod, the spiral feed rod is rotationally connected in a feed conveying pipe, the feed conveying pipe is obliquely arranged on the frame, the upper end of the feed conveying pipe is fixedly connected with a second discharge pipe, the second discharge pipe is fixedly connected with a feed back pipe, and the other end of the feed back pipe is fixedly connected with the crushing box.

Preferably, a collecting hopper is fixedly connected to the frame, the upper end of the collecting hopper is fixedly connected with the crushing box, the lower end of the collecting hopper is fixedly connected with the conveying pipe, a supporting plate is fixedly connected to the upper portion of the frame, and the supporting plate is fixedly connected with the other end of the conveying pipe.

Preferably, the vibration hopper is attached to the back of the conveying pipe, one end of the vibration hopper is fixedly connected with a first guide rod, the first guide rod is in sliding connection with the supporting plate, a first spring is sleeved on the first guide rod between the supporting plate and the conveying pipe, the other end of the vibration hopper is fixedly connected with a second guide rod, the second guide rod is in sliding connection with a baffle, the baffle is fixedly connected with the conveying pipe, and a second spring is sleeved on the second guide rod between the baffle and the vibration hopper.

Preferably, the outside fixedly connected with floor of conveying pipeline, be equipped with the hole groove on the floor of through-hole both sides, be equipped with the vibration piece in the hole groove, the vibration piece with conveying pipeline fixed connection, fixedly connected with and vibration piece complex driving lever in the vibration hopper, the vibration hopper outside articulates there is first connecting rod, first connecting rod rotates to articulate there is the second connecting rod, the second connecting rod rotates to be connected with the drive table.

Preferably, one end of the driving table is hinged with the frame, the other end of the driving table is provided with a chute, a T-shaped pull rod is arranged in the chute, the lower part of the pull rod is in sliding connection with the frame, a damping spring is sleeved on the pull rod below the frame, an eccentric wheel is rotationally connected on the driving table, and the eccentric wheel is rotationally connected with the second connecting rod.

Preferably, the broken stone component comprises a first crushing roller, the first crushing roller is fixedly connected with a first gear, the first gear is meshed with a second gear, the second gear is fixedly connected with a second crushing roller, a collecting block is matched with the outer side of the first crushing roller and the outer side of the second crushing roller, the collecting block is fixedly connected with the crushing box, and a chute is arranged at the upper end of the collecting block.

Preferably, a conveyer belt is arranged below the first discharging pipe, a support is arranged below the conveyer belt, the support is fixedly connected with the frame, a first rotating roller is rotationally connected with the frame, second rotating rollers which are obliquely arranged are respectively arranged on two sides of the first rotating roller, and the second rotating rollers are rotationally connected with the support.

Preferably, the spiral feeding rod comprises a driving shaft, the driving shaft is in a round table structure, and spiral blades are fixedly connected to the driving shaft.

Preferably, a guard plate is fixedly connected to one side of the crushing box, a protection cavity is reserved between the guard plate and the crushing box, fixing holes connected with a feed back pipe are formed in two sides of the protection cavity, and a cover plate is hinged to the other side of the crushing box.

Preferably, the raw materials are poured into the crushing box from the top of the crushing box, under the action of the filter plate, the raw materials with small particles directly enter the blanking cavity, the raw materials with large particles enter the crushing box and are crushed by the crushed stone component, the raw materials enter the conveying pipe after being processed by the crushing box, the raw materials with small particles are filtered to be discharged from the vibrating hopper by the conveying pipe under the action of the through hole, the raw materials with large particles in the conveying pipe pass through the second discharging pipe and the return pipe, the crushing box is subjected to secondary crushing treatment by the conveying belt, the conveying pipe is obliquely placed, an opening for receiving the raw materials is positioned below the crushing box, the opening connected with the conveying pipe is higher than the upper top surface of the crushing box, and the raw materials in the return pipe smoothly flow into the crushing box under the action of gravity.

Compared with the prior art, the invention has the outstanding advantages that:

According to the invention, the inclined filter plate is additionally arranged in the crushing box, small particles and fragments in the raw materials are filtered into the blanking cavity by the filter plate, so that the collision of the fragments and the crushed stone component is avoided to generate larger smoke dust, the total amount of the raw materials in the crushing cavity is reduced, and the crushed stone component is ensured to fully crush the raw materials in the crushing cavity.

According to the invention, the vibration hopper and the second discharging pipe are connected to the material conveying pipe, and the materials in the material conveying pipe are screened through the vibration hopper and the second discharging pipe, so that on one hand, the materials flowing out of the vibration hopper are ensured to have smaller granularity, and on the other hand, larger material particles are conveyed into the crushing box again through the second discharging pipe and the return material assembly for treatment, so that the corundum rotary materials are ensured to be fully crushed in the crushing process.

Drawings

FIG. 1 is a schematic diagram of the overall axial structure of the present invention.

Fig. 2 is a schematic left-view structure of the present invention.

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

FIG. 4 is a schematic cross-sectional view of a crushing box according to the present invention.

FIG. 5 is a schematic view of the sectional structure of the upper end of the crushing box of the present invention.

Fig. 6 is a schematic view of the structure of the stone breaking assembly of the invention.

Fig. 7 is a schematic diagram of a left-hand structure of the feed delivery pipe of the present invention.

Fig. 8 is a schematic view of a connection structure of a driving platform according to the present invention.

FIG. 9 is a schematic diagram of the cross-sectional bottom structure of the vibrating hopper of the present invention.

FIG. 10 shows a feed conveyor pipe according to the invention schematic diagram of left-view cross-section structure.

Fig. 11 is an enlarged schematic view of the structure of fig. 9 a according to the present invention.

Fig. 12 is a schematic view of a frame connection structure according to the present invention.

Fig. 13 is a schematic view of a conveyor belt connection structure according to the present invention.

The number of which is 1, a frame, 2, a crushing box, 3, a crushing cavity, 4, a stone crushing assembly, 401, a first crushing roller, 402, a first gear, 403, a second gear, 404, a second crushing roller, 405, a collecting block, 406, a chute, 5, a filter plate, 6, a collecting hopper, 7, a blanking cavity, 8, a conveying pipe, 9, a vibrating hopper, 10, a first discharging pipe, 11, a through hole, 12, a material returning assembly, 1201, a spiral feeding rod, 1202, a second discharging pipe, 1203, a material returning pipe, 13, a supporting plate, 14, a first guide rod, 15, a first spring, 16, a second guide rod, 17, a baffle plate, 18, a second spring, 19, a rib plate, 20, a hole slot, 21, a vibrating plate, 22, a deflector rod, 23, a first connecting rod, 24, a second connecting rod, 25, a driving table, 26, a chute, 27, a pull rod, 28, a damping spring, 29, an eccentric wheel, 30, a conveying belt, 31, a bracket, 32, a first rotating roller, 33, a second rotating roller, 34, a protective cover plate, 35, a protective cover plate and a protective cover plate.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.

Referring to fig. 1-13, the raw material crushing device for corundum brick production and the crushing method thereof comprise a frame 1, wherein a crushing box 2 is fixedly connected to the frame 1, a crushing cavity 3 is arranged in the crushing box 2, a crushed stone component 4 is arranged in the crushing cavity 3, a filter plate 5 is arranged on the side edge of the crushed stone component 4, the filter plate 5 is connected with the crushing box 2, a blanking cavity 7 is arranged on the side edge of the filter plate 5, a conveying pipe 8 is communicated below the crushing box 2, the conveying pipe 8 is fixedly connected with the frame 1, a vibrating hopper 9 is slidably connected below the conveying pipe 8, a first discharging pipe 10 is fixedly connected below the vibrating hopper 9, a through hole 11 communicated with the vibrating hopper 9 is formed in the conveying pipe 8, a feed back component 12 is connected between the conveying pipe 8 and the crushing box 2, the feed back component 12 comprises a spiral feed rod 1201, the spiral feed rod is rotationally connected in the conveying pipe 8, the conveying pipe 8 is obliquely arranged on the frame 1, a second discharging pipe 1203 is fixedly connected with the other end 1202 of the conveying pipe 1203, and the second discharging pipe 1201 is fixedly connected with the other end 1202.

The frame 1 is composed of a plurality of square steels which are welded with each other, the frame 1 is divided into two layers, the crushing box 2 is of a cuboid structure, the right end of the upper layer of the frame 1 is installed on the crushing box 2, the filter plate 5 in the crushing box 2 is obliquely arranged, one side of the filter plate 5 is provided with a crushing cavity 3, the crushing cavity 3 plays a role in crushing raw materials, the raw materials with large particles are crushed into raw materials with small particles, the other side of the filter plate 5 is provided with a blanking cavity 7 which is directly communicated with a conveying pipe 8, the filter plate 5 is provided with a filter hole, when the raw materials pass through the filter plate 5 in the crushing box 2, the small particles and powdery raw materials can enter the blanking cavity 7 through the filter hole of the filter plate 5, so that excessive dust generated by collision between the small particles and the powder and the crushed stone component 4 can be avoided, meanwhile, the total amount of the raw materials in the crushing cavity 3 can be relatively reduced, the crushed stone component 4 can fully crush the raw materials in the crushing cavity 3, and the crushing effect of the raw materials is improved; the raw materials of the crushing cavity 3 and the blanking cavity 7 finally enter the conveying pipe 8, the conveying pipe 8 is obliquely arranged, the spiral conveying pipe conveys the raw materials in the conveying pipe 8 obliquely, when the raw materials move through the through holes 11, the raw materials with small particles enter the vibration hopper 9 through the through holes 11 and flow out of the vibration hopper 9 and the first discharging pipe 10 to be subjected to the next process, and the large particles which do not pass through the through holes 11 are in the second discharging pipe 1202 on the conveying pipe along with the spiral conveying pipe, an inclined feed back pipe 1203 is connected between the second discharging pipe 1202 and the crushing box 2, the feed back pipe 1203 is inclined towards the direction of the crushing box 2, the second discharging pipe 1202 is of a reversed Y-shaped structure, the raw materials with large particles roll into the crushing box 2 in the second discharging pipe 1202 and the feed back pipe 1203, the raw materials entering the crushing box 2 are screened and crushed again, the first discharging pipe 10, the second discharging pipe 1202 and the feeding back pipe 1203 are all of tubular structures, the three are smooth inner walls, the gradient of the vibrating hopper 9 is the same as that of the conveying pipe, the first discharging pipe 10 is located below the vibrating hopper 9, the vibrating hopper 9 has a vibrating effect, the first discharging pipe 10 is prevented from being blocked in the feeding back process under the vibrating effect, the second discharging pipe 1202 and the feeding back pipe 1203 are all of large-particle raw materials, small particles and powdery raw materials are filtered at the through holes 11 of the conveying pipe 8, so that the large-particle raw materials have smaller friction with the inner walls of round holes of the second discharging pipe 1202 and the feeding back pipe 1203, the large-particle raw materials can conveniently enter the crushing box 2 again, the raw materials are prevented from being blocked, the middle of the bracket 31 is provided with a supporting piece for supporting the feeding back pipe 1203, and the stability of the feeding back pipe 1203 is improved.

The frame 1 is fixedly connected with a collecting hopper 6, the upper end of the collecting hopper 6 is fixedly connected with the crushing box 2, the lower end of the collecting hopper 6 is fixedly connected with the conveying pipe 8, a supporting plate 13 is fixedly connected with the frame 1, and the supporting plate 13 is fixedly connected with the other end of the conveying pipe 8.

The conveying pipe 8 is connected with the crushing box 2 through the collecting hopper 6, the collecting hopper 6 is of a funnel structure, the size of a connecting port between the collecting hopper 6 and the crushing box 2 is large, the connecting port between the collecting hopper 6 and the conveying pipe 8 is relatively small, side plates of the collecting hopper 6 are connected through fixing screws, the side plates can be detached through rotating the fixing screws, detachable side edges are convenient for subsequent overhaul conditions of the device, the supporting plate 13 is located above the left side of the mechanism, and the supporting plate 13 is used for supporting the upper end of the conveying pipe 8, so that the overall stability of the conveying pipe 8 is improved.

The vibration hopper 9 is attached to the back of the conveying pipe 8, one end of the vibration hopper 9 is fixedly connected with a first guide rod 14, the first guide rod 14 is in sliding connection with the supporting plate 13, a first spring 15 is sleeved on the first guide rod 14 between the supporting plate 13 and the conveying pipe 8, the other end of the vibration hopper 9 is fixedly connected with a second guide rod 16, the second guide rod 16 is in sliding connection with a baffle 17, the baffle 17 is fixedly connected with the conveying pipe 8, and a second spring 18 is sleeved on the second guide rod 16 between the baffle 17 and the vibration hopper 9.

The vibration hopper 9 is closely attached to the back of the conveying pipe 8, the first guide rod 14 and the second guide rod 16 are respectively located at two sides of the vibration hopper 9, the first guide rod 14 and the second guide rod 16 play a role in guiding the movement of the vibration hopper 9, the vibration hopper 9 is prevented from being separated from the back of the conveying pipe 8, the supporting plate 13 and the baffle 17 are fixed on the conveying pipe 8, the supporting rod and the baffle 17 respectively play a role in playing a role in the first guide rod 14 and the second guide rod 16, the outer ends of the first guide rod 14 and the second guide rod 16 are respectively connected with a cylindrical sheet, the first guide rod 14 and the second guide rod 16 are prevented from being separated on the supporting plate 13 and the baffle 17 under the action of the cylindrical sheet, the first spring 15 on the first guide rod 14 and the second spring 18 on the second guide rod 16 play a role in reciprocating rebound on the vibration hopper 9, the vibration hopper 9 is prevented from vibrating in a small range and high frequency, and accordingly raw materials in the vibration hopper 9 are prevented from being accumulated in the vibration hopper 9, and the raw materials in the vibration hopper 9 flow out of the first discharging pipe 10 rapidly.

The motor for driving the second connecting rod 24 to rotate is arranged on the driving table 25, the vibrating hopper 9, the first connecting rod 23 and the second connecting rod 24 which rotate form a crank sliding mechanism, the vibrating hopper 9 is driven to reciprocate through the rotation of the second connecting rod 24, so that the vibrating hopper 9 reciprocates, one side of the driving table 25 is hinged with the frame 1, the other end of the driving table 25 has downward pulling force through the pull rod 27 and the damping spring 28, when the motor works, the motor shakes to drive the driving table 25, so that the second connecting rod 24 drives the first connecting rod 23 to shake, in addition, an eccentric wheel 29 is additionally arranged on the driving motor, the eccentric wheel 29 is rotationally connected with the first connecting rod 23, and the second connecting rod 24 is driven to move in a small range through the eccentric wheel 29, so that the second connecting rod 24 drives the first connecting rod 23 to shake in a high frequency, the vibrating frequency of the vibrating hopper 9 is improved, and the situation that the vibrating hopper 9 is blocked is avoided.

The conveying pipe 8 on the upper side of the vibration hopper 9 is downwards discharged through the through hole 11, in the conveying pipe 8, large particle raw materials can be prevented from being clamped in the through hole 11 through the internal spiral contact between the spiral feeding rod 1201 and the conveying pipe 8, a large amount of raw materials powder is also contained in the spiral conveying pipe, in order to prevent the raw materials powder from being retained in the through hole 11, the vibration plate 21 is fixedly arranged on the spiral conveying pipe, the vibration plate 21 is an elastic piece, the end part of the vibration plate 21 is aligned with the center of the stirring rod 22, the stirring rod 22 is of a columnar structure, when the stirring rod 22 moves along with the vibration hopper 9 in a reciprocating manner, the columnar surface of the stirring rod 22 is in contact with the vibration plate 21, the acting force between the stirring rod 22 and the vibration plate 21 can enable the vibration plate 21 to deform, elastic potential energy is stored in the vibration plate 21, after the vibration plate 21 bends by a certain angle, the vibration plate 22 can move to the other side of the vibration plate 21, the elastic capability stored in the vibration plate 21 is instantaneously released, the vibration plate 21 shakes in the hole 20, the vibration plate 21 shakes under the vibration effect of the conveying pipe 8, thus the through hole 11 on the conveying pipe 8 is ensured, the through hole 11 is smoothly arranged, the columnar surface of the vibration plate 11 is in the vibration plate 21 is in the conveying pipe 8, the vibration plate is provided with a stable and the vibration plate 21 is provided with a stable and the vibration plate 19, the vibration plate is matched with the conveying pipe 19, and the vibration plate 21 is positioned on the middle of the conveying pipe 19, and the vibration plate is firmly arranged, and the vibration plate 19 is firmly arranged.

The first crushing roller 401 and the second crushing roller 404 in the stone crushing assembly 4 are stone crushing assemblies 4, cutter teeth on the first crushing roller 401 and the second crushing roller 404 are distributed in a staggered mode, so that the distance between the first crushing roller 401 and the second crushing roller 404 is more compact, particles for crushing raw materials are smaller when the raw materials are crushed, two groups of aggregate blocks 405 are arranged on the outer sides of the first crushing roller 401 and the second crushing roller 404 respectively, clamping grooves on the aggregate blocks 405 are matched with cutter teeth on the first crushing roller 401 and the second crushing roller 404, chute 406 are formed in the upper parts of the two aggregate blocks 405, and the two aggregate blocks 405 form a V-shaped structure under the action of the chute 406, so that the raw materials in the crushing cavity 3 can be gathered towards the first crushing roller 401 and the second crushing roller 404, and the raw materials can be crushed conveniently.

The conveyer belt that says of first discharging pipe 10 below is used for connecting crushing process and crocus process in the brickmaking production, through screening qualified raw materials, flow from vibrations hopper 9 and first discharging pipe 10 and drop on conveyer belt 30, first discharging pipe 10 is located the central line top of conveyer belt 30, support 31 plays the supporting role to the below of conveyer belt 30, improve the bearing capacity of conveyer belt 30, avoid conveyer belt 30 to break because of the oversized burden leads to, further, for reducing the friction between conveyer belt 30 and the support 31, install first roller 32 and second roller 33 additional on support 31, reduce conveyer belt 30 because of the damage that the friction takes place, two second rollers 33 are located the both sides of first roller 32 simultaneously, and the outside of two second rollers 33 upwards inclines, thereby make the both sides of conveyer belt 30 upwarp, can increase the loading of conveyer belt 30 like this, avoid the raw materials to drop in the transportation, improve the efficiency in the transportation.

In conveying pipe 8, spiral conveying pipe whole outline is the round platform structure, and the inner wall of conveying pipe 8 is hugged closely to drive shaft and helical blade in the lower extreme of spiral conveying pipe, upwards along conveying pipe 8, and the space between helical blade and the inner wall of conveying pipe 8 increases gradually, both can avoid the raw materials to take place to pile up at the connector of conveying pipe 8 and broken case 2 like this, avoids the granule to reentry back in the material subassembly 12 again.

The cover plate 36 is connected to the connection backplate 34 of broken case 2, opposite side, and apron 36 plays the closing cap effect to the upper end opening of broken case 2, and backplate 34 constitutes a protection chamber 35 with broken case 2, and protection chamber 35 protects the mouth of pipe of feed back 1203, avoids the raw materials to get into the mouth of pipe of meeting material pipe when throwing material to broken case 2, and the mouth of pipe of feed back 1203 is located the top of filter 5, can fully sieve the feed back like this.

The whole working flow of the invention is as follows:

the raw materials entering the crushing box 2 can meet the obliquely placed filter plate 5, under the action of the filter plate 5, the raw materials with small particles can directly penetrate through the filter holes and enter the blanking cavity 7, the fine particles do not need further crushing treatment, the raw materials with large particles cannot penetrate through the filter holes, and the raw materials with small particles can remain in the crushing box 2 and are ready to receive crushing treatment of the crushed stone assembly 4.

The crushing treatment is that large-particle raw materials are crushed into small particles by the mechanical action of a broken stone assembly 4 in a crushing cavity 3, the broken stone assembly 4 consists of a first crushing roller 401, a second crushing roller 404 and a collecting block 405, and the particle size of the raw materials is reduced by physical impact or shearing action.

Raw materials (including original fine small particle raw materials and newly crushed small particle raw materials) which enter the conveying pipe 8 after crushing treatment enter the obliquely arranged conveying pipe 8 from the bottom or the side surface of the crushing box 2, and an opening of the conveying pipe 8 is positioned below the crushing box 2, so that the raw materials can flow smoothly.

And (3) secondary screening and conveying, namely, in the conveying pipe 8, the raw materials continue to move forwards under the action of the spiral conveying pipe, through holes 11 are formed in the conveying pipe 8, when the raw materials move to the vicinity of the through holes 11, the small-particle raw materials are filtered out again and fall into the vibration hopper 9 through the through holes 11, the vibration hopper 9 has a vibration function, and the raw materials can be ensured to be smoothly discharged from the hopper and ready for entering the next treatment stage.

And (3) secondary crushing of the large-particle raw materials, namely continuously moving the large-particle raw materials which are not filtered by the through holes 11 in the conveying pipe 8 forwards, finally discharging the large-particle raw materials through the second discharging pipe 1202, connecting the second discharging pipe 1202 with the return pipe 1203 to form a closed loop system, and inclining the return pipe 1203 to the direction of the crushing box 2 to ensure that the large-particle raw materials can smoothly flow back into the crushing box 2, and enabling the large-particle raw materials to roll in the return pipe 1203 and enter the crushing box 2 again to receive secondary crushing treatment.

It should be noted that the foregoing description is only a preferred embodiment of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present invention.

Claims (10)

1. The raw material crushing device for corundum brick production is characterized by comprising a frame (1), wherein a crushing box (2) is fixedly connected to the frame (1), a crushing cavity (3) is arranged in the crushing box (2), a crushed stone component (4) is arranged in the crushing cavity (3), a filter plate (5) is arranged on the side edge of the crushed stone component (4), the filter plate (5) is connected with the crushing box (2), a blanking cavity (7) is arranged on the side edge of the filter plate (5), a conveying pipe (8) is communicated with the lower part of the crushing box (2), the conveying pipe (8) is fixedly connected with the frame (1), a vibrating hopper (9) is connected below the conveying pipe (8) in a sliding manner, a through hole (11) communicated with the vibrating hopper (9) is formed in the conveying pipe (8), and a feedback component (12) is connected between the conveying pipe (8) and the crushing box (2);

The feed back assembly (12) comprises a spiral feeding rod (1201), the spiral feeding rod (1201) is rotationally connected in a feed conveying pipe (8), the feed conveying pipe (8) is obliquely arranged on the frame (1), a second discharge pipe (1202) is fixedly connected to the upper end of the feed conveying pipe (8), a feed back pipe (1203) is fixedly connected to the second discharge pipe (1202), and the other end of the feed back pipe (1203) is fixedly connected with the crushing box (2).

2. The raw material crushing device for corundum brick production according to claim 1 is characterized in that a collecting hopper (6) is fixedly connected to a frame (1), the upper end of the collecting hopper (6) is fixedly connected with the crushing box (2), the lower end of the collecting hopper (6) is fixedly connected with the conveying pipe (8), a supporting plate (13) is fixedly connected to the upper portion of the frame (1), and the supporting plate (13) is fixedly connected with the other end of the conveying pipe (8).

3. The raw material crushing device for corundum brick production according to claim 2 is characterized in that the vibration hopper (9) is attached to the back surface of the conveying pipe (8), one end of the vibration hopper (9) is fixedly connected with a first guide rod (14), the first guide rod (14) is in sliding connection with the supporting plate (13), a first spring (15) is sleeved on the first guide rod (14) between the supporting plate (13) and the conveying pipe (8), a second guide rod (16) is fixedly connected with the other end of the vibration hopper (9), a baffle plate (17) is in sliding connection with the second guide rod (16), the baffle plate (17) is fixedly connected with the conveying pipe (8), and a second spring (18) is sleeved on the second guide rod (16) between the baffle plate (17) and the vibration hopper (9).

4. A corundum brick production raw material crushing device according to claim 1 or 3 is characterized in that rib plates (19) are fixedly connected to the outer side of a conveying pipe (8), hole grooves (20) are formed in the rib plates (19) on two sides of a through hole (11), vibration plates (21) are arranged in the hole grooves (20), the vibration plates (21) are fixedly connected with the conveying pipe (8), a deflector rod (22) matched with the vibration plates (21) is fixedly connected to the inside of a vibration hopper (9), a first connecting rod (23) is hinged to the outer side of the vibration hopper (9), a second connecting rod (24) is hinged to the first connecting rod (23) in a rotating mode, and a driving table (25) is connected to the second connecting rod (24) in a rotating mode.

5. The corundum brick production raw material crushing device according to claim 4, wherein one end of the driving table (25) is hinged with the frame (1), a chute (26) is arranged at the other end of the driving table (25), a T-shaped pull rod (27) is arranged in the chute (26), the lower part of the pull rod (27) is in sliding connection with the frame (1), a damping spring (28) is sleeved on the pull rod (27) below the frame (1), an eccentric wheel (29) is rotatably connected on the driving table (25), and the eccentric wheel (29) is rotatably connected with the second connecting rod (24).

6. The raw material crushing device for corundum brick production according to claim 1, wherein the broken stone component (4) comprises a first crushing roller (401), the first crushing roller (401) is fixedly connected with a first gear (402), the first gear (402) is meshed with a second gear (403), the second gear (403) is fixedly connected with a second crushing roller (404), a collecting block (405) is matched with the outer sides of the first crushing roller (401) and the second crushing roller (404), the collecting block (405) is fixedly connected with the crushing box (2), and a chute (406) is arranged at the upper end of the collecting block.

7. The raw material crushing device for corundum brick production according to claim 1 is characterized in that a conveying belt (30) is arranged below the first discharging pipe (10), a support (31) is arranged below the conveying belt (30), the support (31) is fixedly connected with the frame (1), a first rotating roller (32) is rotationally connected with the frame (1), second rotating rollers (33) which are obliquely arranged are arranged on two sides of the first rotating roller (32), and the second rotating rollers (33) are rotationally connected with the support (31).

8. The raw material crushing device for corundum brick production according to claim 1, wherein the spiral feeding rod (1201) comprises a driving shaft, the driving shaft is in a truncated cone structure, and spiral blades are fixedly connected to the driving shaft.

9. The corundum brick producing raw material crushing device according to claim 1, wherein one side of the crushing box (2) is fixedly connected with a guard plate (34), a protection cavity (35) is reserved between the guard plate (34) and the crushing box (2), fixing holes connected with a return pipe (1203) are formed in two sides of the protection cavity (35), and a cover plate (36) is hinged to the other side of the crushing box (2).

10. The method for crushing the raw materials for corundum brick production according to claim 1, wherein the raw materials are poured into the crushing box (2) from the top of the crushing box (2), under the action of the filter plate (5), the raw materials with small particles directly enter the blanking cavity (7), the raw materials with large particles enter the crushing box (2) to be crushed through the crushed stone component (4), the raw materials enter the conveying pipe (8) after being processed by the crushing box (2), the conveying pipe (8) filters the raw materials with small particles into the vibrating hopper (9) to be discharged under the action of the through hole (11), the raw materials with large particles in the conveying pipe (8) pass through the second discharging pipe (1202) and the material returning pipe (1203), secondary crushing treatment is carried out in the crushing box (2) by the conveying belt (30), the conveying pipe (8) is obliquely placed, an opening for receiving the raw materials is positioned below the crushing box (2), an opening connected with the second discharging pipe (1202) is higher than the upper top surface of the crushing box (2), and the raw materials flow back into the crushing box (1203) smoothly under the action of the crushing box (1203).