阅读说明：本技术 一种挤压破碎装置 (Extrusion crushing device ) 是由 郭大江 傅欣 李长江 杨宇 林顺洪 刘文涛 朱宇 周星宇 于 2020-12-01 设计创作，主要内容包括：本发明公开一种挤压破碎装置,进料箱体与安装箱体呈上下布置连接,进料箱体内设有隔板,辅助系统与隔板的下端连接；两个破碎系统布置在安装箱体内,两个破碎系统相对辅助系统呈对称布置；多个破碎刀盘与主破碎辊同轴连接,多个破碎隔环与主破碎辊同轴连接,相邻两个破碎隔环之间设有一个破碎刀盘；多个破碎刀盘与副破碎辊同轴连接,多个破碎隔环与副破碎辊同轴连接,相邻两个破碎刀盘之间设有一个破碎隔环；主破碎辊的破碎刀盘与副破碎辊的破碎隔环对应配合,副破碎辊上的破碎刀盘与主破碎辊的破碎隔环对应配合。本发明极大地提高了破碎效率以及破碎效果。(The invention discloses an extrusion crushing device.A feeding box body is vertically arranged and connected with an installation box body, a partition plate is arranged in the feeding box body, and an auxiliary system is connected with the lower end of the partition plate; the two crushing systems are arranged in the installation box body and are symmetrically arranged relative to the auxiliary system; the crushing cutter heads are coaxially connected with the main crushing roller, the crushing spacer rings are coaxially connected with the main crushing roller, and one crushing cutter head is arranged between every two adjacent crushing spacer rings; the crushing cutter heads are coaxially connected with the auxiliary crushing roller, the crushing spacer rings are coaxially connected with the auxiliary crushing roller, and one crushing spacer ring is arranged between every two adjacent crushing cutter heads; the crushing cutter head of the main crushing roller is correspondingly matched with the crushing spacer ring of the auxiliary crushing roller, and the crushing cutter head on the auxiliary crushing roller is correspondingly matched with the crushing spacer ring of the main crushing roller. The invention greatly improves the crushing efficiency and the crushing effect.)

1. The crushing device of claim 1, wherein: comprises a crushing mechanism;

the crushing mechanism comprises a feeding box body, an installation box body, an auxiliary system and two crushing systems, wherein the feeding box body is vertically arranged and connected with the installation box body; the two crushing systems are arranged in the installation box body and symmetrically arranged relative to the auxiliary system, and one crushing system corresponds to one crushing cavity;

the crushing system comprises a main crushing roller, an auxiliary crushing roller, a plurality of crushing cutter discs and a plurality of crushing spacer rings, wherein two ends of the main crushing roller are rotatably connected with the mounting box body; the crushing cutter heads are coaxially connected with the main crushing roller, the crushing spacer rings are coaxially connected with the main crushing roller, and one crushing cutter head is arranged between every two adjacent crushing spacer rings; the crushing cutter heads are coaxially connected with the auxiliary crushing roller, the crushing spacer rings are coaxially connected with the auxiliary crushing roller, and one crushing spacer ring is arranged between every two adjacent crushing cutter heads; the crushing cutter head of the main crushing roller is correspondingly matched with the crushing spacer ring of the auxiliary crushing roller, and the crushing cutter head on the auxiliary crushing roller is correspondingly matched with the crushing spacer ring of the main crushing roller.

2. The crushing device of claim 1, wherein:

the crushing cutter head is provided with a plurality of main crushing blades which are uniformly distributed in the circumferential direction, and the direction of each main crushing blade corresponds to the steering direction of the main crushing roller or the auxiliary crushing roller.

3. The crushing device of claim 2, wherein:

the crushing spacer ring is provided with a plurality of auxiliary blade sets which are uniformly distributed in the circumferential direction, each auxiliary blade set comprises at least one auxiliary crushing blade, and the direction of each auxiliary crushing blade corresponds to the steering direction of the main crushing roller or the auxiliary crushing roller.

4. A crushing plant according to any one of claims 1 to 3, characterized in that:

two adjacent crushing cutter heads on the main crushing roller are arranged in a staggered angle mode, and two adjacent crushing cutter heads on the auxiliary crushing roller are arranged in a staggered angle mode.

5. The crushing device of claim 3, wherein:

the auxiliary system comprises a supporting plate and a plurality of combing plates, the supporting plate is connected with the partition plate, the supporting plate is provided with a plurality of combing plates corresponding to the main crushing roller, the combing plates are in one-to-one correspondence with the crushing spacer rings of the main crushing roller, a plurality of lateral auxiliary crushing blades are arranged on the two sides of the end face, close to the crushing spacer rings, of each combing plate, at least one spacer ring crushing blade is arranged at the tail end, matched with the crushing spacer ring, of each combing plate, and the spacer ring crushing blades are matched with the auxiliary crushing blades.

6. The crushing device of claim 5, wherein:

adjacent form the comb silo between two comb flitchs, the bottom in comb silo is the arc, and the bottom in comb silo is equipped with the broken knife tackle of multiunit main assistance along length direction, and the broken knife tackle of main assistance includes at least one main broken sword of assisting, main broken sword of assisting and the cooperation of main broken sword.

7. The crushing device of claim 1, wherein:

and a feeding flaring bin is arranged on the feeding box body.

Technical Field

The invention relates to the technical field of garbage treatment, in particular to an extrusion crushing device.

Background

At present, with the rapid development of the socioeconomic process of China and the rapid improvement of the living standard of people, the garbage generated in the urban production and living process is rapidly increased, and the garbage disposal technology becomes a key development direction. Numerous waste disposal facilities have been developed in a continuing effort by those skilled in the art. However, the crushing effect of the conventional garbage treatment equipment in the crushing process is poor, and the crushing efficiency is low.

Disclosure of Invention

Aiming at the problems, the invention provides an extrusion crushing device which greatly improves the crushing efficiency and the crushing effect.

The invention provides an extrusion crushing device, which comprises a crushing mechanism; the crushing mechanism comprises a feeding box body, an installation box body, an auxiliary system and two crushing systems, wherein the feeding box body is vertically arranged and connected with the installation box body; the two crushing systems are arranged in the installation box body and symmetrically arranged relative to the auxiliary system, and one crushing system corresponds to one crushing cavity; the crushing system comprises a main crushing roller, an auxiliary crushing roller, a plurality of crushing cutter discs and a plurality of crushing spacer rings, wherein two ends of the main crushing roller are rotatably connected with the mounting box body; the crushing cutter heads are coaxially connected with the main crushing roller, the crushing spacer rings are coaxially connected with the main crushing roller, and one crushing cutter head is arranged between every two adjacent crushing spacer rings; the crushing cutter heads are coaxially connected with the auxiliary crushing roller, the crushing spacer rings are coaxially connected with the auxiliary crushing roller, and one crushing spacer ring is arranged between every two adjacent crushing cutter heads; the crushing cutter head of the main crushing roller is correspondingly matched with the crushing spacer ring of the auxiliary crushing roller, and the crushing cutter head on the auxiliary crushing roller is correspondingly matched with the crushing spacer ring of the main crushing roller.

Preferably, a plurality of main crushing blades are uniformly distributed in the circumferential direction on the crushing cutter head, and the direction of each main crushing blade corresponds to the direction of rotation of the main crushing roller or the auxiliary crushing roller.

Preferably, the crushing spacer ring is provided with a plurality of auxiliary blade sets which are uniformly distributed in the circumferential direction, each auxiliary blade set comprises at least one auxiliary crushing blade, and the orientation of each auxiliary crushing blade corresponds to the steering direction of the main crushing roller or the auxiliary crushing roller.

Preferably, two adjacent crushing cutter discs on the main crushing roller are arranged in a staggered angle mode, and two adjacent crushing cutter discs on the auxiliary crushing roller are arranged in a staggered angle mode;

preferably, the auxiliary system includes backup pad and polylith comb board, and the backup pad is connected with the baffle, and the backup pad corresponds main broken roller side and is equipped with polylith comb board, comb board and the broken spacer ring one-to-one of main crushing roller, and the comb board all is equipped with the supplementary broken sword of a plurality of side directions by the both sides of the terminal surface of broken spacer ring, and comb board and broken spacer ring complex end are equipped with the broken sword of at least one spacer ring, the broken sword of spacer ring and the cooperation of supplementary broken sword.

Preferably, adjacent form the comb silo between two comb flitchs, the bottom of comb silo is the arc, and the bottom of comb silo is equipped with the broken knife tackle of multiunit main assistance along length direction, and the broken knife tackle of main assistance includes at least one main broken sword of assisting, and main broken sword of assisting cooperates with main broken sword.

Preferably, a feeding flaring bin is arranged on the feeding box body.

The invention has the following beneficial effects:

1. according to the technical scheme, the two crushing systems work simultaneously, so that the garbage treatment efficiency of the crushing mechanism is improved; the arrangement of two crushing systems, the arrangement of main crushing roller and auxiliary crushing roller, and the cooperation of broken blade disc and broken spacer ring on main crushing roller and broken blade disc and broken spacer ring on auxiliary crushing roller are favorable to the material pan feeding, are convenient for carry out the breakage to the material between main crushing roller and the auxiliary crushing roller, have improved crushing efficiency and crushing effect moreover effectively.

2. The main crushing blade of the crushing cutter head and the auxiliary crushing blade of the crushing spacer ring work in a matched mode, so that the crushing efficiency and the crushing refinement degree can be further improved.

3. The design of the main supplementary broken knife tackle of multiunit of comb flitch, comb silo and comb silo bottom, main supplementary broken sword cooperates the material of being convenient for between main crushing roller and the backup pad to carry out the breakage with main broken sword, has further improved broken efficiency and the broken degree that becomes more meticulous.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a perspective view of a crushing mechanism in an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a crushing mechanism according to an embodiment of the present invention;

FIG. 4 is a perspective view of a crushing system in cooperation with an auxiliary system in accordance with an embodiment of the present invention;

FIG. 5 is a front view of a crushing system in cooperation with an auxiliary system in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural view of a crushing cutter head according to an embodiment of the invention;

FIG. 7 is a schematic view of the structure of a crushing spacer ring according to an embodiment of the present invention

FIG. 8 is a perspective view of an auxiliary system in accordance with an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an auxiliary system according to an embodiment of the present invention;

FIG. 10 is a schematic view of the mounting box cooperating with the crushing system in accordance with an embodiment of the present invention;

fig. 11 is a schematic structural view of a pressing mechanism in an embodiment of the present invention;

FIG. 12 is a schematic view of a screening mechanism according to an embodiment of the present invention;

FIG. 13 is a schematic view of the combination of the sifting mechanism and the scattering mechanism in an embodiment of the present invention.

Reference numerals:

1-frame, 101-feeding bin, 2-crushing mechanism, 201-feeding bin, 202-mounting bin, 203-clapboard, 204-crushing cavity, 205-main crushing roller, 206-auxiliary crushing roller, 207-crushing cutter disc, 208-crushing spacer ring, 209-main crushing blade, 210-auxiliary crushing blade, 211-supporting plate, 212-carding plate, 213-lateral auxiliary crushing blade, 214-spacer ring crushing blade, 215-carding groove, 216-main auxiliary crushing blade, 217-feeding flaring bin, 218-arc groove, 3-screening mechanism, 301-screening barrel, 302-screening motor, 303-bracket, 304-first roller ring, 305-second roller ring, 306-roller support, 307-driving gear, 308-driven gear, 309-sieve mesh, 310-rubble screening sieve, 311-air outlet cylinder, 4-forming mechanism, 401-storage bin, 402-forming bin, 403-forming piston pushing head, 404-driving connecting rod, 405-middle connecting rod, 406-forming motor, 407-pushing rod, 408-cover plate, 409-air cylinder, 410-discharging bin, 5-pressing mechanism, 501-pressing motor, 502-crankshaft, 503-pressing hammer, 504-bearing seat, 505-swinging rod, 6-scattering mechanism, 601-scattering motor, 602-scattering rod, 603-first blade, 604-second blade, 7-rubble conveying mechanism, 701-guide bin, 702-guide plate, 703-conveying belt, 704-driving roller, 705-driven roller, 8-material returning mechanism, 801-material returning barrel, 802-rotating rod, 803-feeding screw, 804-material returning motor, 805-feeding hole, 806-material guide plate and 807-material guide pipe.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, the system for crushing, screening, molding and processing municipal solid waste provided by this embodiment includes a frame 1, and a crushing mechanism 2, a screening mechanism 3 and a molding mechanism 4 arranged on the frame 1; crushing mechanism 2, screening mechanism 3 and forming mechanism 4 top-down arrange in proper order, and crushing mechanism 2 is used for breaking into the rubbish granule with city domestic waste, and screening mechanism 3 is used for screening the rubbish granule of design size, and forming mechanism 4 is used for extrudeing the rubbish granule of design size and forms cubic rubbish.

This technical scheme is handled fluffy rubbish in proper order through crushing mechanism 2, screening mechanism 3 and forming mechanism 4 for fluffy rubbish forms the rubbish granule under crushing mechanism 2, and forming mechanism 4 extrudees the cubic rubbish of formation to the rubbish granule after screening mechanism 3, has greatly reduced the occupation space of rubbish in the rubbish station, and has improved city domestic waste's transport efficiency once more.

The invention also discloses an extrusion crushing device which comprises the crushing mechanism.

As shown in fig. 2 to 5, the crushing mechanism 2 includes a feeding box 201, a mounting box 202, an auxiliary system and two crushing systems, the feeding box 201 and the mounting box 202 are vertically arranged and connected, a partition plate 203 is arranged in the feeding box 201, the feeding box is divided into two crushing cavities 204 by the partition plate 203, and the auxiliary system is connected with the lower end of the partition plate 203; two crushing systems are arranged in the mounting box 202, the two crushing systems are symmetrically arranged relative to the auxiliary system, and one crushing system corresponds to one crushing cavity. The arrangement of two crushing chambers 204 and two crushing systems improves the working efficiency of the crushing mechanism 2. In this embodiment, the feeding box 201 is provided with the feeding flaring bin 217, so that the garbage can be conveniently conveyed into the feeding box 201 through the feeding flaring bin 217. Meanwhile, the outer side wall of the feeding box body 201 is provided with a reinforcing plate to improve the overall structural strength of the feeding box body 201.

The crushing system comprises a main crushing roller 205, an auxiliary crushing roller 206, a plurality of crushing cutter discs 207 and a plurality of crushing spacer rings 208, two ends of the main crushing roller 205 are rotatably connected with the mounting box 202, two ends of the auxiliary crushing roller 206 are rotatably connected with the mounting box 202, and the main crushing roller 205 is arranged on the side close to the auxiliary system. A plurality of crushing cutter discs 207 are coaxially connected with the main crushing roller 205, a plurality of crushing spacer rings 208 are coaxially connected with the main crushing roller 205, and one crushing cutter disc 207 is arranged between two adjacent crushing spacer rings 208. A plurality of broken blade discs and vice crushing roller 206 coaxial coupling, a plurality of broken spacer rings and vice crushing roller 206 coaxial coupling are equipped with a broken spacer ring between two adjacent broken blade discs.

As shown in fig. 6, the crushing cutter disk 207 is provided with a plurality of circumferentially uniformly distributed main crushing blades 209, and the direction of the main crushing blades 209 corresponds to the direction of rotation of the main crushing roller 205 or the sub crushing roller 206. The crushing cutter head of the main crushing roller 205 is correspondingly matched with the crushing spacer ring of the auxiliary crushing roller 206, and the crushing cutter head on the auxiliary crushing roller 206 is correspondingly matched with the crushing spacer ring of the main crushing roller 205. In operation, the main crushing roller 205 and the secondary crushing roller 206 both rotate in the same direction; as shown in FIG. 3, the main crushing roller and the sub-crushing roller of the left-side crushing system both rotate clockwise, and the main crushing roller 205 and the sub-crushing roller 206 of the right-side crushing system both rotate counterclockwise. Therefore, the arrangement of the two crushing systems, the arrangement of the main crushing roller 205 and the auxiliary crushing roller 206, and the matching of the crushing cutter head and the crushing spacer ring on the main crushing roller 205 and the crushing cutter head and the crushing spacer ring on the auxiliary crushing roller 206 are beneficial to material feeding, the material between the main crushing roller 205 and the auxiliary crushing roller 206 can be conveniently crushed, and the crushing efficiency and the crushing effect are effectively improved.

In the embodiment, the main crushing blade 209 is a crescent blade, and the blade of the main crushing blade is toothed, so that the material can be more favorably bitten into the main crushing blade, and the empty load phenomenon can be reduced; the cutting edge of the main breaking edge 209 is provided with a cutting edge pause opening to prevent the cutting edge from being excessively worn and from being broken when the cutting edge touches hard objects. The crushing system further comprises four crushing motors, the roller heads of the main crushing rollers are connected with the rotating shafts of the corresponding crushing motors through couplers, the roller heads of the auxiliary crushing rollers are connected with the rotating shafts of the corresponding crushing motors through couplers, and the crushing motors are installed on the installation box body 202.

In addition, in order to facilitate the main crushing roller 205 and the auxiliary crushing roller 206 to drive the crushing cutter head and the crushing spacer ring to rotate, the sections of the main crushing roller and the auxiliary crushing roller are both polygonal, the crushing cutter head is provided with a polygonal connecting hole, the crushing spacer ring is provided with a polygonal connecting hole, the crushing cutter head is sleeved on the main crushing roller or the auxiliary crushing roller through the polygonal connecting hole, and the crushing spacer ring is sleeved on the main crushing roller or the auxiliary crushing roller through the polygonal connecting hole; specifically, the sections of the main crushing roller and the auxiliary crushing roller are both hexagonal, the crushing cutter head is provided with a hexagonal connecting hole, and the crushing spacer ring is provided with a hexagonal connecting hole; the polygonal connecting holes of the crushing cutter head and the polygonal connecting holes of the crushing spacer ring are designed, so that torque can be better transmitted.

In order to further improve the crushing fineness of the household garbage, as shown in fig. 7, the crushing spacer ring 208 is provided with a plurality of circumferentially uniformly distributed auxiliary blade sets, each auxiliary blade set comprises at least one auxiliary crushing blade 210, and the orientation of each auxiliary crushing blade 210 corresponds to the rotation direction of the main crushing roller 205 or the auxiliary crushing roller 206. The auxiliary crushing blade 210 and the main crushing blade 209 are matched, for example, the main crushing blade 209 is provided with four toothed blades, and the number of the auxiliary crushing blades 210 is three, so that after the main crushing blade 209 and the auxiliary crushing blade 210 are matched, the crushing efficiency and the crushing refinement degree can be further improved. Furthermore, two adjacent crushing discs 207 on the primary crushing roller 205 are arranged at an offset angle, and two adjacent crushing discs 207 on the secondary crushing roller 206 are arranged at an offset angle. Two adjacent crushing blade discs 207 of the main crushing roller 205 or the auxiliary crushing roller 206 are arranged in a staggered angle mode, so that on the same main crushing roller 205 or the auxiliary crushing roller 206, main crushing blades 209 of the two adjacent crushing blade discs 207 in the same direction are arranged in a staggered angle mode, biting of materials is facilitated, and the phenomenon of blocking due to overlarge load can be avoided.

As shown in fig. 8 and 9, the auxiliary system includes a supporting plate 211 and a plurality of combing plates 212, the supporting plate 211 is connected with the partition plate 203, the supporting plate 211 is provided with a plurality of combing plates 212 corresponding to the side of the main crushing roller, the combing plates 212 are in one-to-one correspondence with the crushing rings 208 of the main crushing roller 205, both sides of the combing plates 212 near the end surfaces of the crushing rings are provided with a plurality of lateral auxiliary crushing edges 213, the matched ends of the combing plates 212 and the crushing rings 208 are provided with at least one ring crushing edge 214, and the ring crushing edges 214 are matched with the auxiliary crushing edges 210. The lateral auxiliary crushing blade 213 has a multidirectional crushing effect on the auxiliary material, and the spacer ring crushing blade 214 and the auxiliary crushing blade 210 of the crushing spacer ring 208 work in a matched mode, so that the crushing efficiency and the fineness degree of crushing are improved.

Form comb silo 215 between two adjacent comb flitch 212, comb silo 215's bottom is the arc, and comb silo 215's bottom is equipped with the broken knife tackle of multiunit main assistance along length direction, and the broken knife tackle of main assistance includes at least one main broken sword 216 of assistance, and main broken sword 216 of assistance cooperates with main broken sword 209. Specifically, the number of the spacer crushing edges 214 on the card plate 212 matches the number of the subsidiary crushing edges 210 of the single subsidiary edge group, and the number of the serrated edges of the main crushing edge 209 matches the number of the main subsidiary crushing edges 216 of the single main subsidiary crushing blade group. The main crushing blade 209 is matched with the main auxiliary crushing blade 216, so that the crushing efficiency and the fine crushing degree are further improved.

As shown in fig. 10, the crushing cutter head corresponding to the secondary crushing roller 206 in the mounting box 202 is provided with a plurality of arc-shaped grooves, one arc-shaped groove corresponds to one crushing cutter head on the secondary crushing roller 206, and the arc-shaped grooves are matched with the corresponding crushing cutter head; an auxiliary combing plate is formed between every two adjacent arc-shaped grooves, and the end faces of the auxiliary combing plates matched with the crushing spacer rings are concave arc faces.

As shown in fig. 11, the swaging mechanism 5 includes a swaging motor 501, a crankshaft 502, two swaging hammers 503 and two bearing seats 504, the swaging motor 501 and the two bearing seats 504 are both mounted on the frame 1, two ends of the crankshaft 502 are respectively rotatably connected with the two bearing seats 504, and a rotating shaft of the swaging motor 501 is rotatably connected with one end of the crankshaft 502; the upper end of the material pressing hammer 503 is hinged with a swing rod 505, and one end of the swing rod 505 far away from the material pressing hammer is rotatably connected with the crankshaft 502. Two material pressing hammers 503 are arranged in the two crushing cavities 204, and the material pressing hammers 503 are in sliding fit with the inner walls of the corresponding crushing cavities 204. The material pressing motor 501 and the crankshaft 502 drive the material pressing hammer 503 to perform reciprocating material pressing action in the corresponding crushing cavity 204, so that the crushing system can conveniently bite materials, and the working efficiency is improved.

As shown in fig. 12, the sieving mechanism 3 includes a sieving barrel 301, a sieving motor 302 and two brackets 303, a first roller ring 304 and a second roller ring 305 are arranged at two ends of the sieving barrel 301, the two brackets 303 are both mounted on the frame 1, two roller holders 306 are arranged on the brackets 303, the first roller ring 304 of the sieving barrel 301 is placed on the two roller holders of the corresponding bracket, the second roller ring 305 of the sieving barrel 301 is placed on the two roller holders of the corresponding bracket, an included angle between an axial center line of the sieving barrel 301 and a horizontal plane is 5-20 °, and a feeding end of the sieving barrel 301 is higher than a discharging end of the sieving barrel 301; the screening motor 302 is installed on the rack 1, a rotating shaft of the screening motor 302 is connected with a driving gear 307, a coaxial driven gear 308 is sleeved on the screening cylinder 301, and the driving gear 307 is meshed with the driven gear 308; screening drum 301 is provided with a plurality of evenly distributed screening holes 309 in both the circumferential direction and the axial direction, and screening holes 309 are arranged in an inclined manner. Meanwhile, the included angle between the screening barrel and the horizontal plane is arranged, so that the screening barrel 301 can conveniently send out the granular garbage larger than the designed size from the lower end of the screening barrel 301.

Screening section of thick bamboo 301 will reach broken rubbish granule of required size and select and fall to forming mechanism 4 in by the mesh, screening motor 302 passes through driving gear 307 and driven gear 308 and drives screening section of thick bamboo 301 and rotate, has improved the screening efficiency of mesh 309 on screening section of thick bamboo 301, has avoided the phenomenon that the mesh 309 of screening section of thick bamboo 301 appears blockking up moreover effectively. The inclined direction of the screen holes 309 of the screening cylinder 301 is matched with the rotating direction of the screening cylinder 301, so that the screening efficiency is improved.

As shown in fig. 13, the scattering mechanism 6 includes a scattering motor 601, a scattering rod 602 and a plurality of scattering paddles, the scattering motor 601 is installed on the frame 1, and a rotating shaft of the scattering motor 601 is connected with one end of the scattering rod 602; the scattering paddles are connected with the scattering rod 602, the scattering paddles are arranged on the scattering rod 602 at equal intervals, and two adjacent scattering paddles are arranged at a 90-degree staggered angle; the breaking-up paddle comprises a first paddle 603 and a second paddle 604, the first paddle 603 and the second paddle 604 are both connected with the breaking-up rod 602, and the first paddle 603 and the second paddle 604 are arranged in a crossed angle; the breaking up paddle on breaking up bar 602 is located in sizing drum 301. The arrangement of the first paddle 603 and the second paddle 604 on the scattering rod 602 can effectively avoid the phenomenon of agglomeration of the granular garbage, so that the garbage granules meeting the design requirements can be screened out through the sieve mesh 309 of the screening cylinder 301. In addition, in order to further improve the screening efficiency of the screen holes 309 of the screening drum 301 and to avoid particles from being held together on the side of the screening drum 301 close to the forming mechanism 4, the breaking bar 602 and the plurality of breaking paddles are arranged inside the screening drum 301 close to the forming mechanism 4.

The invention also includes a crushed stone screening screen 310 and a fan; the feeding end of the gravel screening sieve 310 corresponds to the discharging end of the crushing mechanism 2, and the discharging end of the gravel screening sieve 310 is arranged in the feeding end of the screening cylinder 301; the air outlet of the fan is provided with a connecting pipeline, the other end of the connecting pipeline is provided with a horn-shaped air outlet cylinder 311, the air outlet cylinder 311 is arranged on the rack 1, and the air outlet cylinder 311 is aligned with the gravel screening sieve 310. The wind blown out of the wind outlet cylinder 311 blows and scatters the granular garbage of the gravel screening sieve 310, so that the gravel mixed in the granular garbage is removed by the gravel screening sieve 310.

A broken stone conveying mechanism 7, a material guide bin 701 and a guide plate 702 are arranged on the frame 1; the gravel conveying mechanism 7 comprises a conveying belt 703, a driving roller 704, a driven roller 705 and a conveying motor, wherein two ends of the driving roller 704 are rotatably connected with the frame 1, and two ends of the driven roller 705 are rotatably connected with the frame 1; the transmission motor is arranged on the frame, and a rotating shaft of the transmission motor is connected with one end of the driving roller; the material guide bin 701 is installed on the rack 1, the feeding end of the material guide bin 701 corresponds to the gravel screening sieve 310, and the discharging end of the material guide bin 701 corresponds to the conveyor belt 703; the guide plate 702 is connected to the frame 1, and the guide plate 702 is located below the discharge end of the conveyor belt 703.

Specifically, the molding mechanism 4 comprises a storage bin 401, a molding bin 402, a molding piston pusher 403, a driving connecting rod 404, an intermediate connecting rod 405 and a molding motor 406, wherein the storage bin 401 and the molding bin 402 are both mounted on the frame 1, and the storage bin 401 is located below the screening mechanism 3; the lower end of the storage bin 401 is provided with a discharge hole, the upper end of the forming bin 402 is provided with a feed hole, and the discharge hole of the storage bin 401 is butted with the feed hole of the forming bin 402; a forming cavity with an opening at one end is arranged in the forming bin 402, the feeding hole is communicated with the forming cavity, a forming piston push head 403 is in sliding fit with the forming cavity, and a push rod 407 is arranged on the forming piston push head 403; the forming motor 4006 is installed on the frame 1, a rotating shaft of the forming motor 406 is connected with one end of the driving connecting rod 404, the other end of the driving connecting rod 404 is hinged with one end of the middle connecting rod 405, and the other end of the middle connecting rod 405 is hinged with the push rod 407. The push rod 407, the driving connecting rod 404 and the intermediate connecting rod 405 form a connecting rod mechanism, and a rotating shaft of the forming motor 406 rotates to enable the forming piston push head 403 to reciprocate in the forming cavity; when the granular garbage needs to be extruded and molded, the molding motor 406 drives the molding piston pusher 403 to avoid the feeding hole of the molding bin 402, the granular garbage in the storage bin 401 falls into the molding cavity, the molding motor 406 drives the molding piston pusher 403 to extrude the granular garbage in the molding cavity to form block-shaped garbage, and meanwhile, the molding piston pusher 403 seals the feeding hole of the molding bin 402.

The molding mechanism 4 further comprises a cover plate 408, an air cylinder 409 and a discharge bin 410 with two open ends, a discharge port is arranged at the end of the molding bin 402 far away from the molding motor, one side of the discharge port of the molding bin 402 is hinged with one end of the cover plate 408, the cover plate 408 is provided with a strip-shaped dovetail groove, and the strip-shaped dovetail groove of the cover plate 408 is provided with a dovetail block in sliding fit; the cylinder 409 is hinged with the inner wall of the discharging bin 410, and a piston rod of the cylinder 409 is hinged with the dovetail block. Under the cooperation of the dovetail block and the strip-shaped dovetail groove of the cover plate 408, the piston rod of the cylinder 409 can move to open and close the cover plate 408, so that the extruded and molded block-shaped garbage is conveniently discharged through the discharge hole of the molding bin 402 and the discharge bin 410.

As shown in fig. 1, the invention further comprises a material returning mechanism 8 and a feeding bin 101; the feeding bin 101 is connected with the rack 1, and the discharging end of the feeding bin 101 is positioned above the crushing mechanism 2; the material returning mechanism 8 comprises a material returning barrel 801, a rotating rod 802, a feeding spiral sheet 803 and a material returning motor 804, wherein a first baffle is arranged at the lower end of the material returning barrel 801 and is connected with the rack 1; a feed inlet 805 is formed in the lower end of the material return barrel 801, and a guide plate 806 for guiding materials discharged from the discharge end of the sieving barrel 301 into the feed inlet 805 of the material return barrel 801 is arranged on the rack 1; a second baffle is arranged at the upper end of the material returning barrel 801, a rotating shaft of a material returning motor 804 is connected with the rotating rod 802, a feeding spiral piece 803 is connected with the rotating rod 802, and the feeding spiral piece 803 is arranged in the material returning barrel 801; the upper end of the material returning barrel 801 is provided with a material outlet, the side of the feeding bin 101 close to the material returning barrel is provided with a material guiding opening, and the material guiding opening of the feeding bin 101 is connected with a material outlet material guiding pipe 807 of the material returning barrel 801. The granular garbage larger than the designed size in the screening cylinder 301 is guided into the lower end of the material returning cylinder 801 through the material guide plate 806 and the material inlet of the material returning cylinder 801, the material returning motor 804 is started, the material returning motor 804 drives the rotating rod 802 and the feeding spiral piece 803 to rotate, and therefore the material at the lower end of the material returning cylinder 801 is sent into the material guide pipe 807 through the feeding spiral piece 803, and then is sent into the material feeding bin 101 to be crushed again in the subsequent process.

It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.