Solid waste material alkali excitation pretreatment crushing device

Abstract

The utility model discloses a solid waste material alkali excitation pretreatment crushing device, which relates to the technical field of solid waste material alkali excitation, and comprises a double-roller crusher fixedly arranged on a support frame, a material homogenizing mechanism and a circulating crushing device, the material homogenizing mechanism comprises a driving component and two rotating plates, the two rotating plates are arranged in a spaced mode in the length direction of crushing rollers of the double-roller crusher, the ends, away from each other, of the two rotating plates are hinged to the inner wall of a feeding hopper of the double-roller crusher, hydraulic cylinders are hinged to the bottoms of the two rotating plates, and the other ends of the two hydraulic cylinders are hinged to the inner wall of the feeding hopper of the double-roller crusher on the adjacent side. According to the solid waste material alkali excitation pretreatment crushing device, two rotating plates of the material homogenizing mechanism alternately turn over up and down to form alternate discharging channels, so that solid waste can alternately fall at the left end and the right end of a crushing roller, solid waste accumulation and crushing roller clamping can be prevented, the solid waste can be more uniformly distributed in a crushing machine, and the crushing efficiency is improved. The crushing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of alkali excitation of solid waste materials, in particular to an alkali excitation pretreatment and crushing device for solid waste materials. Background Art

[0002] Alkali activation of solid waste materials is a technology that uses alkaline activators (such as sodium hydroxide, potassium hydroxide, etc.) to activate the potential activity of solid waste materials (such as fly ash, slag, etc.). This technology uses chemical reactions to dissolve and repolymerize mineral components such as silicates and aluminates in solid waste materials to generate high-strength and high-durability solid bodies, thereby realizing high-value utilization of solid waste resources.

[0003] In the prior art, solid waste materials are usually transported to the feed hopper of the crusher by means of a conveyor belt during pre-processing and crushing. However, since the position of the conveyor belt is usually relatively fixed, when the solid waste materials fall into the feed hopper, they tend to be concentrated on one side or the middle of the crushing roller of the crusher. This not only easily leads to the accumulation of solid waste and the jamming of the crushing roller, but also causes severe wear on one side of the crushing roller, thereby reducing the service life of the crushing roller.

[0004] Therefore, it is necessary to propose an alkali-activated pretreatment and crushing device for solid waste materials to solve the above problems. Utility Model Content

[0005] Technical problem to be solved: The purpose of the present invention is to provide an alkali-activated pretreatment and crushing device for solid waste materials, so as to solve the problem in the existing crushing device proposed in the above background technology that when pre-treating and crushing solid waste materials, solid waste materials are often concentrated on one side or the middle of the crushing roller of the crusher, which not only easily leads to solid waste accumulation and crushing roller jamming, but also causes serious wear on one side of the crushing roller, thereby reducing the service life of the crushing roller.

[0006] Technical solution: To achieve the above purpose, the present invention is implemented through the following technical solutions: a solid waste material alkali-activated pretreatment crushing device, comprising a double-roll crusher fixedly mounted on a support frame, a material distribution mechanism and a circulating crushing device, the material distribution mechanism comprising a driving assembly and two rotating plates, the two rotating plates being spaced apart along the length direction of the crushing rollers of the double-roll crusher, and the ends of the two rotating plates away from each other being respectively hinged to the inner wall of the feed hopper of the double-roll crusher, the bottoms of the two rotating plates are hinged with hydraulic cylinders, the other ends of the two hydraulic cylinders being respectively hinged to the inner wall of the feed hopper of the adjacent double-roll crusher; the driving assembly and two rotating plates are spaced apart along the length direction of the crushing rollers of the double-roll crusher, and the two rotating plates are spaced apart from each other, and the ends of the two rotating plates are respectively hinged to the inner wall of the feed hopper of the double-roll crusher The dynamic component includes an oil storage tank and a servo motor fixedly mounted on the double-roll crusher, a driving gear fixedly mounted on the output shaft of the servo motor, oil pipes fixedly mounted on both ends of the left and right ends of the oil storage tank, the other ends of the two oil pipes are respectively connected to the oil inlets of the two hydraulic cylinders; a piston is axially slidably mounted in the oil storage tank, the piston divides the oil storage tank into two left and right chambers, a threaded hole is provided on the piston, and the threaded hole is set away from the center of the piston, a screw is threadedly mounted in the threaded hole, one end of the screw is rotatably connected to the inner wall of the oil storage tank, and the other end passes through the oil storage tank and is fixedly mounted with a driven gear, and the driven gear is meshed with the driving gear for transmission.

[0007] Preferably, the circulating crushing device includes an auger and an electric motor fixedly mounted on a support frame, and also includes a discharge pipe fixedly mounted on the discharge port of the double-roll crusher, the motor is transmission-connected to the rotating shaft of the auger, a screen plate is fixedly mounted on the middle of the discharge pipe, the screen plate separates the discharge pipe into two upper and lower chambers, a guide plate is fixedly mounted in the upper chamber, and the end of the guide plate away from the auger and the end of the screen plate close to the auger are both inclined downward.

[0008] Preferably, a tilted return pipe is fixedly installed on the side of the discharge pipe close to the auger, the upper end of the return pipe is connected to the bottom of the upper chamber of the discharge pipe, and the lower end is connected to the input end of the auger, and a tilted feed pipe is fixedly installed on the output end of the auger, and the lower end of the feed pipe is connected to the inside of the feed hopper of the double-roll crusher.

[0009] Preferably, a fixed plate is fixedly mounted on the double-roll crusher, and the servo motor is fixedly mounted on the fixed plate.

[0010] Beneficial effects: Compared with the prior art, the utility model provides an alkali-activated pretreatment and crushing device for solid waste materials. The alkali-activated pretreatment and crushing device for solid waste materials has a unique structure and is easy to use. The two rotating plates are spaced apart along the length direction of the crushing roller of the double-roll crusher, and the ends of the two rotating plates away from each other are respectively hinged to the inner wall of the feed hopper of the double-roll crusher. The servo motor drives the screw to rotate in the oil storage tank through the meshing transmission of the driving gear and the driven gear. The screw drives the piston to move back and forth left and right in the oil storage tank through a threaded connection. The movement of the piston pushes or pulls the rotating plate up and down through the hydraulic cylinder, thereby forming an alternating discharge channel between the two rotating plates. In this way, the solid waste can fall alternately on the left and right ends of the crushing roller to achieve uniform distribution; after being crushed by the double-roll crusher, the solid waste falls into the discharge pipe, and is guided to slide on the screen plate through the guide plate. The screen plate screens out qualified solid waste particles and discharges them through the lower end of the discharge pipe. Solid waste with larger particles flows into the auger through the return pipe and returns to the feed hopper of the double-roll crusher through the auger for cyclic crushing.

[0011] The two rotating plates of the material balancing mechanism are alternately flipped up and down to form alternating discharge channels, so that the solid waste can alternately fall on the left and right ends of the crushing roller. This not only prevents the accumulation of solid waste and the jamming of the crushing roller, but also makes the solid waste more evenly distributed in the crusher, thereby improving the crushing efficiency. In addition, the evenly distributed solid waste can avoid repeated wear on one side of the crushing roller, thereby extending the service life of the crushing roller and reducing maintenance costs; the circulating crushing device uses the auger to return the solid waste with larger particles to the feed hopper of the crusher for cyclic crushing, which ensures that all solid waste particles meet the required particle size requirements and improves product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional main view schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a three-dimensional side view schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a cross-sectional schematic diagram of the structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the interior of the feed hopper of the double-roll crusher of the present invention;

[0016] Figure 5 This is a cross-sectional schematic diagram of the oil storage tank structure of the utility model;

[0017] Figure 6 For this utility model Figure 1 A magnified schematic diagram of the structure of area A in the middle.

[0018] In the figure: 1. Support frame; 2. Double-roll crusher; 3. Auger; 4. Motor; 5. Rotating plate; 6. Hydraulic cylinder; 7. Oil storage tank; 8. Screw; 9. Piston; 10. Driven gear; 11. Fixed plate; 12. Servo motor; 13. Drive gear; 14. Oil pipeline; 15. Discharge pipe; 16. Guide plate; 17. Screen plate; 18. Return pipe; 19. Feed pipe. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1: This example 1 provides a solid waste material alkali excitation pretreatment crushing device, which is directly improved on the existing solid waste crushing device and has a unique structure. Figure 1-6 As shown, it includes a double-roll crusher 2 fixedly mounted on a support frame 1, and also includes a material distribution mechanism and a circulating crushing device. The material distribution mechanism includes a driving assembly and two rotating plates 5. The two rotating plates 5 are spaced apart along the length direction of the crushing rollers of the double-roll crusher 2, and the ends of the two rotating plates 5 away from each other are respectively hinged to the inner wall of the feed hopper of the double-roll crusher 2. The bottoms of the two rotating plates 5 are hinged with hydraulic cylinders 6, and the other ends of the two hydraulic cylinders 6 are respectively hinged to the inner wall of the feed hopper of the adjacent double-roll crusher 2. There are various ways of hinged connection, for example: hinged by hinges or hinges.

[0021] The driving assembly includes an oil storage tank 7 and a servo motor 12 fixedly mounted on the double-roll crusher 2. A driving gear 13 is fixedly mounted on the output shaft of the servo motor 12. Oil pipes 14 are fixedly mounted on both ends of the oil storage tank 7. The other ends of the two oil pipes 14 are respectively connected to the oil inlets of the two hydraulic cylinders 6. There are various ways to install the servo motor 12. For example: a fixed plate 11 is fixedly mounted on the double-roll crusher 2, and the servo motor 12 is fixedly mounted on the fixed plate 11; a piston 9 is axially slidably mounted in the oil storage tank 7, and the piston 9 divides the oil storage tank 7 into two left and right chambers. A threaded hole is opened on the piston 9, and the threaded hole is set away from the center of the piston 9. A screw 8 is threadedly mounted in the threaded hole. One end of the screw 8 is rotatably connected to the inner wall of the oil storage tank 7, and the other end passes through the oil storage tank 7 and is fixedly mounted with a driven gear 10. The driven gear 10 is engaged with the driving gear 13 for transmission.

[0022] There are many ways to rotationally connect the screw 8 to the oil tank 7. For example, the screw 8 is rotationally connected to the oil tank 7 through a bearing. The servo motor 12 can detect the number of rotations of the drive gear 13 through its built-in encoder, and thereby detect the number of rotations of the screw 8. When the number of rotations of the screw 8 reaches a preset threshold, the servo motor 12 automatically reverses, causing the piston 9 to move back and forth left and right in the oil tank 7. When the piston 9 moves to the left, the hydraulic oil in the left chamber will be squeezed into the hydraulic cylinder 6 on the left, thereby extending the hydraulic rod of the left hydraulic cylinder 6, and then pushing the rotating plate 5 on the left to flip upward.

[0023] At the same time, when the piston 9 moves to the left, the volume of the right chamber increases, and the hydraulic oil in the right hydraulic cylinder 6 will be sucked into the right chamber, thereby causing the hydraulic rod of the right hydraulic cylinder 6 to contract and pull the right rotating plate 5 to flip downward. At this time, a discharge channel facing left will be formed between the two rotating plates 5. Similarly, when the piston 9 moves to the right, a discharge channel facing right will be formed between the two rotating plates 5, so that the solid waste can fall alternately on the left and right ends of the crushing roller, which not only makes the solid waste more evenly distributed in the double-roll crusher 2 and prevents the crushing roller from being stuck, but also avoids repeated wear on one side of the crushing roller, thereby extending the service life of the crushing roller. In addition, the two rotating plates 5 can also prevent solid waste fragments from splashing during the alternating up and down movements, thereby ensuring the safety of the staff.

[0024] The circulating crushing device includes an auger 3 and a motor 4 fixedly mounted on a support frame 1, and also includes a discharge pipe 15 fixedly mounted on the discharge port of the double-roll crusher 2. The motor 4 is connected to the rotating shaft of the auger 3 in a variety of ways. For example, the output shaft of the motor 4 is fixedly connected to the rotating shaft of the auger 3 through a coupling. A sieve plate 17 is fixedly mounted on the middle part of the discharge pipe 15. The sieve plate 17 divides the discharge pipe 15 into two upper and lower chambers. A guide plate 16 is fixedly mounted in the upper chamber, and the end of the guide plate 16 away from the auger 3 and the end of the sieve plate 17 close to the auger 3 are both inclined downward.

[0025] The discharge pipe 15 is fixedly installed with an inclined return pipe 18 on the side near the auger 3. The upper end of the return pipe 18 is connected to the bottom of the upper chamber of the discharge pipe 15, and the lower end is connected to the input end of the auger 3. The output end of the auger 3 is fixedly installed with an inclined delivery pipe 19, and the lower end of the delivery pipe 19 is connected to the interior of the feed hopper of the double-roll crusher 2; after the solid waste is crushed by the double-roll crusher 2, it will fall into the discharge pipe 15. During the falling process, the solid waste particles will fall on the upper end of the sieve plate 17 under the action of the guide plate 16, and then slide to the lower end of the sieve plate 17. In the process of the solid waste particles sliding on the sieve plate 17, the solid waste particles of qualified size will pass through the sieve holes of the sieve plate 17 and be discharged from the lower end of the discharge pipe 15, and the solid waste particles with larger particles will flow into the auger 3 through the return pipe 18, and return to the feed hopper of the double-roll crusher 2 through the auger 3 for cyclic crushing.

[0026] Working principle: When the crushing device is in use, the electric motor 4 and the servo motor 12 are first started at the same time, and then the solid waste is transported to the feed hopper of the double-roll crusher 2 through the conveyor belt. The servo motor 12 drives the screw 8 to rotate through the meshing transmission of the driven gear 10 and the driving gear 13. After the screw 8 rotates, it drives the piston 9 to move back and forth left and right in the oil tank 7 through a threaded connection. When the piston 9 moves to the left, the hydraulic oil in the left chamber will be squeezed into the hydraulic cylinder 6 on the left, so that the hydraulic rod of the left hydraulic cylinder 6 extends, and then pushes the left rotating plate 5 to flip upward; at the same time, when the piston 9 moves to the left, the volume of the right chamber increases, and the hydraulic oil in the right hydraulic cylinder 6 will be sucked into the right chamber, so that the hydraulic rod of the right hydraulic cylinder 6 contracts and pulls the right rotating plate 5 to flip downward.

[0027] At this time, a discharge channel facing left will be formed between the two rotating plates 5. Similarly, when the piston 9 moves to the right, a discharge channel facing right will be formed between the two rotating plates 5, so that the solid waste can alternately fall on the left and right ends of the crushing roller, which can not only make the solid waste more evenly distributed in the double-roll crusher 2 and prevent the crushing roller from being stuck, but also avoid repeated wear on one side of the crushing roller, thereby extending the service life of the crushing roller. In addition, the two rotating plates 5 can also prevent the solid waste fragments from splashing during the process of alternating up and down movement, thereby The safety of the staff is guaranteed; after being crushed by the double-roll crusher 2, the solid waste will fall into the discharge pipe 15. During the falling process, the solid waste particles will fall on the upper end of the sieve plate 17 under the action of the guide plate 16, and then slide to the lower end of the sieve plate 17. In the process of the solid waste particles sliding on the sieve plate 17, the solid waste particles of qualified size will pass through the sieve holes of the sieve plate 17 and be discharged from the lower end of the discharge pipe 15, and the solid waste with larger particles will flow into the auger 3 through the return pipe 18, and return to the feed hopper of the double-roll crusher 2 through the auger 3 for cyclic crushing.

[0028] Example 2: The difference between Example 2 and Example 1 is that Figure 3 As shown, in actual application, since the solid waste particles slide on the screen plate 17 at a relatively fast speed, a large portion of qualified solid waste particles flow into the auger 3 before they have time to be screened, resulting in repeated work. In order to slow down the sliding speed of the solid waste particles on the screen plate 17, the screen plate 17 is set to a stepped shape, so that larger solid waste particles can quickly pass through the screen plate 17 into the auger 3, while smaller solid waste particles need to slide on the screen plate 17 layer by layer under the action of the vibration generated by the double-roll crusher 2, thereby fully screening out qualified solid waste particles and avoiding repeated work.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid waste material alkali-activated pretreatment crushing device, comprising a double-roll crusher (2) fixedly mounted on a support frame (1), characterized in that: The invention also includes a material distribution mechanism and a circulating crushing device, wherein the material distribution mechanism includes a driving assembly and two rotating plates (5), the two rotating plates (5) are spaced apart along the length direction of the crushing roller of the double-roll crusher (2), and the ends of the two rotating plates (5) that are away from each other are respectively hinged to the inner wall of the feed hopper of the double-roll crusher (2), the bottoms of the two rotating plates (5) are hinged to hydraulic cylinders (6), and the other ends of the two hydraulic cylinders (6) are respectively hinged to the inner wall of the feed hopper of the adjacent double-roll crusher (2); the driving assembly includes an oil storage tank (7) fixedly mounted on the double-roll crusher (2) and a servo motor (12), and the output shaft of the servo motor (12) is fixedly sleeved with a driving assembly. Gear (13), oil delivery pipes (14) are fixedly installed at both ends of the oil storage tank (7), and the other ends of the two oil delivery pipes (14) are respectively communicated with the oil inlets of the two hydraulic cylinders (6); a piston (9) is axially slidably sleeved in the oil storage tank (7), and the piston (9) divides the oil storage tank (7) into two left and right chambers. A threaded hole is opened on the piston (9), and the threaded hole is set away from the center of the piston (9). A screw (8) is threadedly sleeved in the threaded hole. One end of the screw (8) is rotatably connected to the inner wall of the oil storage tank (7), and the other end passes through the oil storage tank (7) and is fixedly sleeved with a driven gear (10). The driven gear (10) is meshed with the driving gear (13) for transmission.

2. The solid waste material alkali-activated pretreatment and crushing device according to claim 1, characterized in that: The circulating crushing device comprises an auger (3) and an electric motor (4) fixedly mounted on a support frame (1), and also comprises a discharge pipe (15) fixedly mounted on a discharge port of a double-roll crusher (2), the electric motor (4) being in driving connection with a rotating shaft of the auger (3), a screen plate (17) fixedly mounted in the middle of the discharge pipe (15), the screen plate (17) dividing the discharge pipe (15) into two upper and lower chambers, a guide plate (16) fixedly mounted in the upper chamber, and an end of the guide plate (16) away from the auger (3) and an end of the screen plate (17) close to the auger (3) are both inclined downward.

3. The solid waste material alkali-activated pretreatment and crushing device according to claim 2, characterized in that: A tilted return pipe (18) is fixedly installed on one side of the discharge pipe (15) close to the auger (3); the upper end of the return pipe (18) is connected to the bottom of the upper chamber of the discharge pipe (15), and the lower end is connected to the input end of the auger (3); a tilted feed pipe (19) is fixedly installed at the output end of the auger (3); the lower end of the feed pipe (19) is connected to the inside of the feed hopper of the double-roll crusher (2).

4. The solid waste material alkali-activated pretreatment and crushing device according to claim 1, characterized in that: A fixed plate (11) is fixedly mounted on the double-roll crusher (2), and a servo motor (12) is fixedly mounted on the fixed plate (11).

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