Multi-stage crushing system and crushing method for solid waste resourceful treatment
By using a multi-stage crushing system and multiple crushing mechanisms, the problem of poor single-stage crushing effect of solid waste has been solved, achieving thorough crushing and efficient transportation of solid waste.
Patent Information
- Application Number
- CN202310633922.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-31
- Publication Date
- 2026-04-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing technologies, it is difficult to achieve the required size by crushing solid waste in a single operation, and it is also difficult to handle solid waste of different materials, resulting in poor crushing effect and increased crushing difficulty.
A multi-stage crushing system is adopted, including a primary crushing mechanism, crushing rollers, a secondary crushing mechanism, and a tertiary crushing mechanism. Through multiple crushing and impact forces, the solid waste is thoroughly crushed, and the crushed solid waste is transported to the designated location by a conveying mechanism.
It enables multiple crushing of solid waste to ensure it reaches the required size, and improves crushing efficiency and effectiveness, adapting to solid waste of different materials.
Smart Images
Figure CN121819992A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of solid waste resource utilization, in particular to a multi-stage crushing system and a crushing method for solid waste resource treatment. BACKGROUND
[0002] The pretreatment methods of solid waste mainly include compaction, crushing, sorting and dewatering, among which the crushing treatment has multiple methods.
[0003] The first is shearing, which actually cuts the material like scissors, and the shearing efficiency depends on the gap between the tools and the sharpness of the cutting edge; the second is tearing, which is to divide the material into small pieces by tension, and materials such as fabrics, soft metals, plastics and tires are more suitable for tearing; the third is fracturing, such as glass, hard plastic materials and some metals, for example, brittle. When the gap between the cutting or crushing machines is not sharp, the tools can be relatively large.
[0004] However, these methods are only simple single crushing of solid waste when crushing, which may be difficult to crush solid waste to the required size, and it is difficult to deal with solid waste of different materials, which will lead to poor crushing effect and increased crushing difficulty. SUMMARY
[0005] The purpose of the present application is to provide a multi-stage crushing system and a crushing method for solid waste resource treatment to solve the problems raised in the background.
[0006] To achieve the above purpose, the present application provides the following technical scheme:
[0007] The multi-stage crushing system for solid waste resource treatment comprises:
[0008] A base is provided, a crushing barrel is fixedly installed on the base, an inlet hopper is fixedly installed on the crushing barrel, inclined plates are fixedly installed in the inlet hopper in a symmetrical manner, and a conveying box for conveying crushed materials is also fixedly installed on the base;
[0009] A primary crushing mechanism is arranged on the inlet hopper, the primary crushing mechanism comprises a primary crushing assembly and a crushing roller, and the primary crushing assembly can drive the crushing roller to rotate when the materials enter the inlet hopper;
[0010] A plurality of crushing blocks are fixedly installed in the crushing barrel in a circumferentially equidistant manner, a secondary crushing mechanism is arranged in the crushing barrel, and the secondary crushing mechanism can throw the materials crushed by the crushing roller to a position matched with the crushing blocks;
[0011] A third crushing mechanism is arranged in the crushing barrel and connected with the second crushing mechanism, the third crushing mechanism comprises a third crushing assembly and a plurality of pressing plates arranged at equal intervals in a circle, and the second crushing mechanism is driven by the third crushing assembly to reciprocate the pressing plates.
[0012] A conveying mechanism is arranged in the conveying box and connected with the first crushing assembly and the second crushing mechanism, the first crushing assembly drives the conveying mechanism to move, and the second crushing mechanism is driven by the conveying mechanism to move.
[0013] As a further scheme of the present application, the first crushing assembly comprises a motor fixedly installed on the feeding hopper, a transmission rod rotatably installed on the feeding hopper and arranged symmetrically, gears fixedly installed on the transmission rod and meshed with each other, the transmission rod is fixedly connected with the crushing roller and the conveying mechanism, and one of the transmission rods is connected with the output shaft of the motor.
[0014] As a further scheme of the present application, the second crushing mechanism comprises a guide pipe fixedly installed in the crushing barrel, a plurality of through grooves arranged at equal intervals in a circle and formed in the guide pipe, and a baffle fixedly installed on the guide pipe, the crushing barrel is provided with a rotating assembly connected with the guide pipe, and the rotating assembly is connected with the conveying mechanism.
[0015] As a further scheme of the present application, the rotating assembly comprises a support rod rotatably installed in the crushing barrel, a conical disc fixedly installed on the support rod and movably connected with the guide pipe, and a limiting plate fixedly installed on the support rod, the limiting plate is connected with the third crushing assembly, and the support rod is connected with the conveying mechanism.
[0016] As a further scheme of the present application, the third crushing assembly comprises a guide plate fixedly installed in the crushing barrel, a hollow pipe fixedly installed in the crushing barrel and abutting against the pressing plate, and a plurality of fixed sleeves arranged at equal intervals in a circle and fixedly installed in the hollow pipe, the crushing barrel is further provided with an elastic structure connected with the fixed sleeves and the limiting plate, and the elastic structure is fixedly connected with the pressing plate.
[0017] As a further scheme of the present application, the elastic structure comprises a movable rod movably installed in the fixed sleeve, a limiting wheel fixedly installed in the movable rod and abutting against the limiting plate, and a spring sleeved on the fixed sleeve and the movable rod and abutting against the limiting wheel, and the movable rod is fixedly connected with the pressing plate.
[0018] As a further scheme of the present application: the conveying mechanism comprises a first rotating rod rotatably arranged in the conveying box, a first belt sleeved on the transmission rod and connected with the first rotating rod, and a first bevel gear fixedly arranged on the first rotating rod, and the conveying box is provided with a driven assembly connected with the first bevel gear, and the driven assembly is connected with the supporting rod.
[0019] As a further scheme of the present application: the driven assembly comprises a second rotating rod rotatably arranged on the crushing barrel, a second bevel gear fixedly arranged on the second rotating rod and engaged with the first bevel gear, and a second belt sleeved on the second rotating rod and connected with the supporting rod.
[0020] The crushing method of the multi-stage crushing system for solid waste resource treatment comprises the following steps:
[0021] Step one: the material to be crushed is placed in the feeding hopper, and the material is crushed into a smaller state under the action of the first-stage crushing mechanism;
[0022] Step two: the crushed material falls into the crushing barrel, and the material is rapidly impacted on the crushing block under the action of the second-stage crushing mechanism, so that the material is further crushed into a smaller state under the action of the impact force;
[0023] Step three: the material after the secondary crushing enters the third-stage crushing mechanism, and the material is crushed to a required size under the action of the third-stage crushing mechanism, and then the material is separated from the crushing barrel and enters the conveying box, and the first-stage crushing mechanism drives the conveying mechanism to move to convey the material to a designated position.
[0024] Compared with the prior art, the present application has the following beneficial effects: the solid waste can be crushed to a required size through multiple crushing, the solid waste is placed in the feeding hopper, and the solid waste is once crushed under the action of the first-stage crushing mechanism, the crushed solid waste enters the second-stage crushing mechanism, and the solid waste is twice crushed under the action of the second-stage crushing mechanism and the crushing block, the second-stage crushing mechanism also drives the third-stage crushing mechanism to move to crush the solid waste three times, and the crushed solid waste enters the conveying box and is conveyed to a required position under the action of the conveying mechanism. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a structural schematic view of the embodiment of the multi-stage crushing system for solid waste resource treatment.
[0026] Figure 2 It is a structural schematic view of the embodiment of the multi-stage crushing system for solid waste resource treatment from another angle.
[0027] Figure 3It is a half cut structure schematic diagram of the multistage crushing system for solid waste resource treatment.
[0028] Figure 4 It is Figure 3 It is a structure enlarged schematic diagram of A in the middle.
[0029] Figure 5 It is a structure schematic diagram of the conveying box and part of the conveying mechanism in the multistage crushing system for solid waste resource treatment.
[0030] Figure 6 It is a connection relationship schematic diagram of the secondary crushing mechanism and part of the tertiary crushing mechanism in the multistage crushing system for solid waste resource treatment.
[0031] Figure 7 It is an explosion structure schematic diagram of the secondary crushing mechanism in the multistage crushing system for solid waste resource treatment.
[0032] Figure 8 It is an explosion structure schematic diagram of part of the secondary crushing mechanism and the tertiary crushing mechanism in the multistage crushing system for solid waste resource treatment.
[0033] In the figure: 1, base; 2, crushing barrel; 3, feeding hopper; 4, motor; 5, transmission rod; 6, crushing roller; 7, gear; 8, No. 1 belt; 9, conveying box; 10, No. 1 rotating rod; 11, No. 1 bevel gear; 12, No. 2 bevel gear; 13, No. 2 rotating rod; 14, No. 2 belt; 15, inclined plate; 16, crushing block; 17, guide plate; 18, material guide pipe; 19, through slot; 20, baffle; 21, conical disc; 22, support rod; 23, limiting plate; 24, hollow pipe; 25, fixed sleeve; 26, movable rod; 27, pressing plate; 28, spring; 29, limiting wheel. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0035] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.
[0036] Referring to Figures 1-8 In the embodiment of the present application, the multi-stage crushing system for solid waste resource treatment comprises:
[0037] A base 1 is provided with a crushing barrel 2 fixedly installed thereon, the crushing barrel 2 is fixedly provided with a feeding hopper 3, the feeding hopper 3 is fixedly provided with symmetrical inclined plates 15, and the base 1 is further provided with a conveying box 9 for conveying the crushed materials, wherein a gap is left between the two inclined plates 15, a discharge opening is formed in the feeding hopper 3 and communicated with the crushing barrel 2, so as to facilitate the solid waste to enter the crushing barrel 2, a discharge opening is formed in the bottom of the crushing barrel 2, and a circular hole is formed in the conveying box 9 and located directly below the discharge opening.
[0038] Referring to Figures 1-3 A primary crushing mechanism is arranged on the feeding hopper 3, the primary crushing mechanism comprises a primary crushing assembly and crushing rollers 6, the primary crushing assembly can drive the crushing rollers 6 to rotate when the materials enter the feeding hopper 3, the primary crushing assembly comprises a motor 4 fixedly installed on the feeding hopper 3, transmission rods 5 rotatably installed on the feeding hopper 3 and arranged symmetrically, and gears 7 fixedly installed on the transmission rods 5 and engaged with each other, the transmission rods 5 are fixedly connected with the crushing rollers 6 and connected with the conveying mechanism, and one of the transmission rods 5 is connected with the output shaft of the motor 4.
[0039] It should be noted that a gap is left between the two crushing rollers 6, when the solid waste needs to be crushed, the solid waste is put into the feeding hopper 3, at this time, the motor 4 works to drive the transmission rods 5 to rotate, thereby driving one of the crushing rollers 6 and the gears 7 connected therewith to rotate, when the gears 7 rotate, the other gears 7 engaged therewith rotate in the opposite direction, so that the two crushing rollers 6 rotate in opposite directions to crush the solid waste entering the feeding hopper 3, and the crushed solid waste will fall on the inclined plates 15 and enter the crushing barrel 2 under the action of gravity.
[0040] Referring to Figure 3 、 Figures 6-8, the crushing barrel 2 is provided with a secondary crushing mechanism, the secondary crushing mechanism can throw the material crushed by the crushing roller 6 to a position matched with the crushing block 16, the secondary crushing mechanism comprises a guide pipe 18 fixedly installed in the crushing barrel 2, a plurality of through grooves 19 opened in the guide pipe 18 and arranged at equal intervals in a circle, and a baffle 20 fixedly installed on the guide pipe 18, the crushing barrel 2 is provided with a rotating assembly connected with the guide pipe 18, the rotating assembly is connected with the conveying mechanism, wherein the rotating assembly comprises a supporting rod 22 rotatably installed in the crushing barrel 2, a conical disc 21 fixedly installed on the supporting rod 22 and movably connected with the guide pipe 18, and a limiting plate 23 fixedly installed on the supporting rod 22, the limiting plate 23 is connected with the tertiary crushing assembly, and the supporting rod 22 is connected with the conveying mechanism.
[0041] Further, the crushing block 16 is made of hard material, and the size of the solid waste is still large after the first crushing, so that the secondary crushing is needed, the solid waste after the first crushing will enter the guide pipe 18 due to gravity and fall on the conical disc 21, at this time, the supporting rod 22 rotates to drive the conical disc 21 to rotate, the conical disc 21 is arranged in a conical shape, the material falling on the conical disc 21 will make divergent motion towards the outside of the conical disc 21, and when the conical disc 21 rotates, the centrifugal force will be provided to the solid waste, so that the solid waste quickly separates from the conical disc 21 and passes through the through groove 19 to hit the crushing block 16, under the action of the impact force, the solid waste is crushed into a smaller state, the supporting rod 22 also drives the limiting plate 23 to rotate, so that the tertiary crushing assembly moves.
[0042] Please refer to Figures 3-4 、 Figures 6-8, a third crushing mechanism arranged in the crushing barrel 2 and connected with the second crushing mechanism, the third crushing mechanism comprising a third crushing assembly and a plurality of pressing plates 27 arranged at equal intervals in a circle, the second crushing mechanism being capable of driving the pressing plates 27 to reciprocate through the third crushing assembly, the third crushing assembly comprising a guide plate 17 fixedly installed in the crushing barrel 2, a hollow pipe 24 fixedly installed in the crushing barrel 2 and abutting against the pressing plates 27, a plurality of fixed sleeves 25 fixedly installed in the hollow pipe 24 and arranged at equal intervals in a circle, and an elastic structure connected with the fixed sleeves 25 and the limiting plate 23 and arranged in the crushing barrel 2, the elastic structure being fixedly connected with the pressing plates 27, wherein the elastic structure comprises a movable rod 26 movably installed in the fixed sleeve 25, a limiting wheel 29 fixedly installed in the movable rod 26 and abutting against the limiting plate 23, and a spring 28 sleeved on the fixed sleeve 25 and the movable rod 26 and abutting against the limiting wheel 29.
[0043] Further, the limiting plate 23 is arranged in a conical shape, and the outer periphery of the limiting plate 23 is arranged with four circumferential recesses, and the pressing plate 27 is also arranged with four pressing plates, in the initial state, the limiting wheel 29 is in abutting state with the recessed part of the limiting plate 23, at this time, the spring 28 is in a slightly compressed state, the movable rod 26 is located at the end of the stroke away from the fixed sleeve 25, and the pressing plate 27 is in abutting state with the hollow pipe 24, the solid waste after impact crushing will move towards the bottom of the crushing barrel 2, under the action of the baffle 20, it is ensured that the solid waste will not enter the hollow pipe 24, and the solid waste will fall on the guide plate 17, the guide plate 17 is arranged in a conical shape, and the hollow pipe 24 is also arranged in a conical shape, and a gap is formed between the two, the solid waste will enter the gap, with the rotation of the supporting rod 22, the limiting plate 23 is driven to rotate, when the recessed position of the limiting plate 23 is separated from the limiting wheel 29, the protruding part of the limiting plate 23 will abut against the limiting wheel 29, thereby driving the limiting wheel 29 to move towards the fixed sleeve 25, so as to drive the movable rod 26 to move, so that the spring 28 is compressed, and the movable rod 26 will also drive the pressing plate 27 to move, and under the action of the pressing plate 27, the solid waste arranged between the gap is further crushed, and the crushed solid waste will be discharged through the discharge port and enter the conveying box 9 through the circular hole.
[0044] Please refer to Figures 1-3 , Figure 5, a conveying mechanism arranged in the conveying box 9 and connected with the primary crushing assembly and the secondary crushing mechanism, the primary crushing assembly can drive the conveying mechanism to move, and the secondary crushing mechanism is driven to move by the conveying mechanism, the conveying mechanism comprises a first rotating rod 10 rotatably arranged in the conveying box 9, a first belt 8 sleeved on the transmission rod 5 and connected with the first rotating rod 10, and a first bevel gear 11 fixedly arranged on the first rotating rod 10, the conveying box 9 is arranged with a driven assembly connected with the first bevel gear 11, and the driven assembly is connected with the support rod 22, wherein the driven assembly comprises a second rotating rod 13 rotatably arranged on the crushing barrel 2, a second bevel gear 12 fixedly arranged on the second rotating rod 13 and engaged with the first bevel gear 11, and a second belt 14 sleeved on the second rotating rod 13 and connected with the support rod 22.
[0045] Finally, the first rotating rod 10 is fixedly provided with a spiral blade, when the solid waste is crushed, the crushed material will fall into the conveying box 9, and the crushed solid waste needs to be conveyed to a specified position, at this time, the transmission rod 5 rotates to drive the first belt 8 to rotate, so that the first rotating rod 10 rotates, so that the spiral blade rotates, and the spiral blade can convey the solid waste under the action of the spiral blade, the first rotating rod 10 also drives the first bevel gear 11 to rotate, so as to drive the second bevel gear 12 engaged with the first bevel gear 11 to rotate, so that the second rotating rod 13 rotates, so as to drive the support rod 22 to rotate through the second belt 14.
[0046] The crushing method of the multi-stage crushing system for solid waste resource treatment comprises the following steps:
[0047] Step one: the material to be crushed is placed in the feeding hopper 3, and the material is crushed into a smaller state under the action of the primary crushing mechanism;
[0048] Step two: the crushed material will fall into the crushing barrel 2, and under the action of the secondary crushing mechanism, the material is rapidly impacted on the crushing block 16, and under the action of the impact force, the material is further crushed into a smaller state;
[0049] Step three: the material after secondary crushing enters the tertiary crushing mechanism, and under the action of the tertiary crushing mechanism, the material is crushed to a required size, and then the material is separated from the crushing barrel 2 and enters the conveying box 9, and the primary crushing mechanism drives the conveying mechanism to move to convey the material to a specified position.
[0050] In use, the solid waste is put into the feeding hopper 3, at this time, the motor 4 works to drive the transmission rod 5 to rotate, thereby driving the one of the crushing rollers 6 and the gear 7 connected therewith to rotate, when the gear 7 rotates, the other gear 7 meshing therewith rotates reversely, so that the two crushing rollers 6 rotate in opposite directions to crush the solid waste entering the feeding hopper 3, at the same time, when the transmission rod 5 rotates, the first belt 8 rotates, thereby driving the first rotating rod 10 to rotate, so that the spiral blade rotates, the first rotating rod 10 also drives the first bevel gear 11 to rotate, thereby driving the second bevel gear 12 meshing therewith to rotate, so that the second rotating rod 13 rotates, thereby driving the support rod 22 to rotate through the second belt 14, so that the conical disc 21 rotates, the crushed solid waste falls on the inclined plate 15 and enters the guide pipe 18 under the action of gravity, and falls on the conical disc 21, and when the conical disc 21 rotates, centrifugal force is provided to the solid waste, so that the solid waste quickly separates from the conical disc 21 and hits the crushing block 16 after passing through the through slot 19, under the action of the impact force, the solid waste is crushed into a smaller state, the guide plate 17 is conically arranged, the hollow pipe 24 is also conically arranged, and a gap is formed between the two, the solid waste enters the gap, with the rotation of the support rod 22, the limiting plate 23 is driven to rotate, when the recessed position of the limiting plate 23 is separated from the limiting wheel 29, the protruding part of the limiting plate 23 abuts against the limiting wheel 29, thereby driving the limiting wheel 29 to move towards the fixed sleeve 25, to drive the movable rod 26 to move, so that the spring 28 is compressed, the movable rod 26 also drives the pressing plate 27 to move, and under the action of the pressing plate 27, the solid waste arranged between the gap is further crushed, the crushed solid waste is discharged through the discharge port and enters the conveying box 9 through the round hole, under the action of the spiral blade, the solid waste can be conveyed.
[0051] It will be apparent to those skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, and that the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. Thus, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and it is intended that all changes and modifications which come within the meaning and range of equivalency of the claims are reserving to the application. Any reference signs in the claims should not be construed as limiting the claims to the features to which the reference signs are directed.
[0052] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.
Claims
1. A multi-stage crushing system for solid waste resource processing, characterized in that, The multistage crushing system for solid waste resource treatment comprises: A base (1) is provided with a crushing barrel (2) fixedly installed thereon, the crushing barrel (2) is fixedly provided with a feeding hopper (3) thereon, the feeding hopper (3) is fixedly provided with symmetrically arranged inclined plates (15) therein, and the base (1) is further fixedly provided with a conveying box (9) for conveying crushed materials; A first crushing mechanism is arranged on the feeding hopper (3) and comprises a first crushing assembly and a crushing roller (6), the first crushing assembly can drive the crushing roller (6) to rotate when materials enter the feeding hopper (3).
2. The multi-stage crushing system for solid waste resource processing according to claim 1, characterized in that, Further comprising: A plurality of crushing blocks (16) are fixedly installed in the crushing barrel (2) and are circumferentially equidistantly arranged, a second crushing mechanism is arranged in the crushing barrel (2) and can throw the materials crushed by the crushing roller (6) to a position matched with the crushing blocks (16); A third crushing mechanism is arranged in the crushing barrel (2) and is connected with the second crushing mechanism, the third crushing mechanism comprises a third crushing assembly and a plurality of pressing plates (27) circumferentially equidistantly arranged, and the second crushing mechanism can drive the pressing plates (27) to reciprocate through the third crushing assembly; A conveying mechanism is arranged in the conveying box (9) and is connected with the first crushing assembly and the second crushing mechanism.
3. The multi-stage crushing system for solid waste resource processing according to claim 2, characterized in that, The first crushing assembly can drive the conveying mechanism to move and drive the second crushing mechanism to move through the conveying mechanism.
4. The multi-stage crushing system for solid waste resource processing according to claim 3, characterized in that The primary crushing assembly comprises a motor (4) fixedly installed on the feeding hopper (3), driving rods (5) rotatably installed on the feeding hopper (3) and symmetrically arranged, and gears (7) fixedly installed on the driving rods (5) and meshed with each other; the driving rods (5) are fixedly connected with the crushing rollers (6) and connected with the conveying mechanism; one of the driving rods (5) is connected with the output shaft of the motor (4); the secondary crushing mechanism comprises a guide pipe (18) fixedly installed in the crushing barrel (2), a plurality of through grooves (19) opened on the guide pipe (18) and arranged at equal intervals in the circumference, and a baffle (20) fixedly installed on the guide pipe (18); the crushing barrel (2) is provided with a rotating assembly connected with the guide pipe (18); the rotating assembly is connected with the conveying mechanism; the rotating assembly comprises a support rod (22) rotatably installed in the crushing barrel (2), a conical disc (21) fixedly installed on the support rod (22) and movably connected with the guide pipe (18), and a limiting plate (23) fixedly installed on the support rod (22); the limiting plate (23) is connected with the tertiary crushing assembly; the support rod (22) is connected with the conveying mechanism; the tertiary crushing assembly comprises a guide plate (17) fixedly installed in the crushing barrel (2), a hollow pipe (24) fixedly installed in the crushing barrel (2) and abutting against the pressing plate (27), and a plurality of fixed sleeves (25) fixedly installed in the hollow pipe (24) and arranged at equal intervals in the circumference; the crushing barrel (2) is further provided with an elastic structure connected with the fixed sleeves (25) and the limiting plate (23); the elastic structure is fixedly connected with the pressing plate (27); the elastic structure comprises a movable rod (26) movably installed in the fixed sleeve (25), a limiting wheel (29) fixedly installed in the movable rod (26) and abutting against the limiting plate (23), and a spring (28) sleeved on the fixed sleeve (25) and the movable rod (26) and abutting against the limiting wheel (29); the movable rod (26) is fixedly connected with the pressing plate (27).
5. The multi-stage crushing system for solid waste resource processing according to claim 4, characterized in that The conveying mechanism comprises a first rotating rod (10) rotatably installed in the conveying box (9), a first belt (8) sleeved on the driving rod (5) and connected with the first rotating rod (10), and a first bevel gear (11) fixedly installed on the first rotating rod (10).
6. The multi-stage crushing system for solid waste resource processing according to claim 5, characterized in that, The conveying box (9) is provided with a driven assembly connected with the first bevel gear (11); the driven assembly is connected with the support rod (22).
7. The multi-stage crushing system for solid waste resource processing according to claim 6, characterized in that, The driven assembly comprises a second rotating rod (13) rotatably installed on the crushing barrel (2), a second bevel gear (12) fixedly installed on the second rotating rod (13) and meshed with the first bevel gear (11), and a second belt (14) sleeved on the second rotating rod (13) and connected with the support rod (22).
8. A crushing method of a multi-stage crushing system for solid waste resource treatment, using the multi-stage crushing system for solid waste resource treatment according to any one of claims 3 to 7, characterized in that, The method comprises the following steps: Step one: the material to be broken is put into the hopper (3), and under the action of the first crushing mechanism, the material is broken into a smaller state; Step two: the broken material will fall into the crushing barrel (2), and under the action of the second crushing mechanism, the material is rapidly impacted on the crushing block (16), and under the action of the impact force, the material is further broken into a smaller state; Step three: the material after secondary crushing enters the third crushing mechanism, and under the action of the third crushing mechanism, the material is broken to the required size, and then separates from the crushing barrel (2) and enters the conveying box (9). The first crushing mechanism drives the conveying mechanism to move to convey the material to the designated position.