Plastic building template recycling and cleaning device

By designing a plastic building formwork recycling and cleaning device with steps such as crushing, screening, ultrasonic cleaning and dewatering, the problem of poor separation effect of concrete residue and impurities in the existing technology has been solved, and the efficient reuse of plastic building formwork has been realized.

CN121018801APending Publication Date: 2025-11-28SHAANXI JIUYI PACKAGING MATERIALS CO LTD
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Patent Information

Application Number
CN202511320189.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

In existing technologies, plastic building formwork recycling devices have poor separation effects on concrete residues and impurities during the processing, resulting in the inability to directly reuse the processed plastic.

Method used

Design a cleaning device that includes a crushing mechanism, a pretreatment mechanism, a coarse washing tank, an ultrasonic cleaning tank, a centrifugal dewatering mechanism, and a hot air drying mechanism. The device removes concrete residues and impurities through progressive crushing, screening, coarse washing, ultrasonic cleaning, dewatering, and drying.

Benefits of technology

It achieves efficient removal of concrete residue and impurities, and the treated plastic building formwork granules can be directly added back to the injection molding machine for injection molding, thus improving processing efficiency.

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Abstract

The invention belongs to the technical field of plastic building template recycling, and discloses a plastic building template recycling and cleaning device which comprises a crushing mechanism, a pretreatment mechanism, a rough cleaning pool, an ultrasonic cleaning pool, a centrifugal dewatering mechanism and a hot air drying mechanism which are sequentially connected. The large plastic building template is crushed step by step, separated concrete residues and impurities are screened, then the crushed and screened plastic building template is subjected to rough cleaning and ultrasonic cleaning, and finally dehydration and drying treatment are conducted, so that the treated plastic building template particles can be directly added into an injection molding machine again for injection molding use, and the injection molding efficiency is improved. And the overall treatment efficiency is high.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic building template recycling, in particular to a plastic building template recycling and cleaning device. BACKGROUND

[0002] The plastic building template is an energy-saving and green environmental protection product, and is a new generation product after wood template, combined steel template, bamboo-wood glued template and full-steel large template. The plastic building template can completely replace traditional steel template, wood template and square wood, is energy-saving and environment-friendly, and has low cost. The plastic building template can be recycled for more than 30 times.

[0003] With the continuous demand of the building aspect, the consumption of the plastic building template is continuously increasing, and the discarded plastic building template will continuously increase. If the discarded plastic building template is not timely and effectively treated, the environment will be harmed, a large amount of resources and energy will be consumed, and the discarded plastic building template will have concrete residues and impurities, and some discarded plastic building templates are damaged during use and cannot meet the use requirements.

[0004] The plastic building template recycling and reusing device in the prior art is directly crushed by a crusher, cleaned by a cleaning machine, and finally collected. In the processing process, the separation effect of the concrete residues and impurities is poor, and the plastic after processing cannot be directly reused. SUMMARY

[0005] The present application aims to provide a plastic building template recycling and cleaning device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A plastic building template recycling and cleaning device, comprising a crushing mechanism, a pretreatment mechanism, a rough cleaning pool, an ultrasonic cleaning pool, a centrifugal dehydration mechanism and a hot air drying mechanism connected in sequence. The crushing mechanism comprises a crushing cavity, and a cooling mechanism is arranged at the top of the crushing cavity. The pretreatment mechanism comprises a screening assembly obliquely arranged on the ground and connected to one end of the discharge port of the crushing cavity. A dust collecting hood is arranged at the top of the screening assembly, a plurality of magnetic separators are uniformly arranged in the dust collecting hood, and the heights of the plurality of magnetic separators gradually decrease along the material advancing direction. The coarse washing tank is connected to one end of the discharge port of the screening component. The bottom of the coarse washing tank has a conical structure. A first slag discharge port is provided at the center of the bottom of the coarse washing tank. At least two coarse washing shafts are arranged in parallel inside the coarse washing tank. Each coarse washing shaft has coarse washing blades inclinedly arranged on its surface. The top of the coarse washing tank at the end away from the screening component is connected to the ultrasonic cleaning tank through a first lifting mechanism. An ultrasonic generator is installed at the bottom of the ultrasonic cleaning tank. A guide plate is also installed at an inclination inside the ultrasonic cleaning tank. A second slag discharge port is provided at the lower end of the side wall of the ultrasonic cleaning tank near the guide plate. The top of the end of the ultrasonic cleaning tank away from the coarse washing tank is connected to the centrifugal dewatering mechanism through a second lifting mechanism. A hot air drying mechanism is connected to the bottom outlet of the centrifugal dehydration mechanism.

[0007] More preferably, the screening assembly includes multiple support columns disposed on the ground, the tops of the support columns being connected to the four corners of the bottom of the screening box, and the height of the support column at the feed inlet end of the screening assembly is greater than the height of the support column at the discharge outlet end. A buffer structure is also provided between the support columns and the screening box. A screening plate is also provided inside the screening box. A slag bin is also connected to the bottom of the discharge outlet end of the screening box through a slag outlet. Multiple vibrating motors are also evenly disposed at the bottom of the screening box. The buffer structure includes limiting posts located at the four corners of the bottom of the screening box. A buffer spring is sleeved on the outside of the limiting post, and the end of the limiting post near the support post is movably connected to the buffer cavity inside the top of the support post.

[0008] More preferably, the screening plate is fixedly connected to the inside of the screening box in a detachable manner, and the surface of the screening plate is uniformly provided with a plurality of screening holes.

[0009] More preferably, a dust collection pipe is provided at the center of the top of the dust collection hood, and a dust collection fan is provided at the connection between the dust collection pipe and the dust collection hood; Each of the magnetic separators includes mounting plates disposed on the front and rear sides of the dust collection hood. A magnetic separation roller is rotatably connected between the mounting plates. One end of the magnetic separation roller passes through the mounting plate and the dust collection hood and is connected to a drive motor. A scraper is also inclinedly disposed on one side of the magnetic separation roller. The lower end of the scraper passes through the dust collection hood and is connected to a collection branch pipe. The collection branch pipe is connected to the slag bin through the main collection pipe.

[0010] Further preferably, the cooling mechanism comprises a cooling cover arranged on the top of the crushing cavity, the cooling cover is in an arc structure as a whole, cooling main pipes and cooling branch pipes are arranged on the outer side of the cooling cover, the cooling main pipes are arranged along the arc direction of the cooling cover, the cooling branch pipes are arranged in a vertical state and cross-distributed with the cooling main pipes, a plurality of spray heads are uniformly arranged on the surface of one end of the cooling branch pipes close to the crushing cavity, and the spray heads are all arranged towards the center of the crushing cavity.

[0011] Further preferably, the crushing mechanism comprises a crushing cavity, the crushing cavity is symmetrically arranged with a driving shaft and a driven shaft inside, the driving shaft and the driven shaft are arranged with crushing teeth that are mutually engaged on the surface, one end of the driving shaft is connected with a crushing motor through the crushing cavity, and the driving shaft and the driven shaft are connected through gear transmission with mutual engagement.

[0012] Further preferably, the first lifting mechanism and the second lifting mechanism both comprise a cylindrical lifting shell, the lifting shell is arranged with a lifting shaft inside, the lifting shaft is arranged with lifting blades on the surface, and one end of the lifting shaft is connected to the driving end of a lifting motor through a belt cooperation transmission wheel.

[0013] Further preferably, the centrifugal dewatering mechanism comprises a centrifugal cavity connected to the second lifting mechanism, the centrifugal cavity is rotatably connected with a drum inside, a limiting bearing is arranged between the drum and the centrifugal cavity, the drum is arranged with a centrifugal shaft at the center, one end of the centrifugal shaft is connected with a centrifugal motor through the top of the centrifugal cavity, the other end of the centrifugal shaft is connected to the inside of the drum through a connecting frame, the connecting frame is in a rice-shaped structure, a plurality of through holes are uniformly arranged on the surface of the side wall of the drum, and a liquid outlet is further arranged on one side of the bottom of the centrifugal cavity.

[0014] Further preferably, the hot air drying mechanism comprises a drying cavity connected to the bottom of the drum, the drum and the drying cavity are rotatably connected through a connecting bearing, one end of the drying cavity close to the drum is further arranged with a valve on the top, a plurality of guide plates are staggered arranged inside the drying cavity, and a hot air machine is connected through a hot air pipe on one side of the discharge port of the bottom of the drying cavity.

[0015] Further preferably, one end of each of the two coarse washing shafts is connected with a coarse washing motor through the side wall of the coarse washing pool, and the top of the coarse washing pool is further arranged with a water inlet.

[0016] Compared with the prior art, the present application has the following beneficial effects: The device gradually carries out the crushing of large plastic building templates, the screening of the separated concrete residues and impurities, the rough washing and ultrasonic cleaning of the crushed and screened plastic building templates, and the dehydration and drying treatment of the plastic building templates, so that the treated plastic building template particles can be directly added to the injection molding machine for injection molding use, and the overall processing efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the application; Figure 2 It is the pretreatment mechanism structure schematic diagram of the application; Figure 3 It is the crushing mechanism structure schematic diagram of the application; Figure 4 It is the magnetic separation roller structure side view of the application; Figure 5 It is the cooling mechanism structure schematic diagram of the application; Figure 6 It is the lifting mechanism structure schematic diagram of the application; Figure 7 It is the centrifugal dehydration mechanism structure schematic diagram of the application; Figure 8 It is the hot air drying mechanism structure schematic diagram of the application; In the drawing: 1, screening assembly; 2, screening plate; 3, support column; 4, buffer cavity; 5, limiting column; 6, buffer spring; 7, vibration motor; 8, slag crushing port; 9, slag crushing bin; 10, magnetic separator; 11, magnetic separation roller; 12, scraper; 13, collection branch pipe; 14, collection main pipe; 15, dust collection hood; 16, dust collection fan; 17, dust collection pipe; 18, crushing mechanism; 19, cooling cover; 20, cooling mechanism; 21, rough washing pool; 22, rough washing motor; 23, rough washing shaft; 24, rough washing blade; 25, water inlet; 26, first slag discharge port; 27, first lifting mechanism; 28, first feeding pipe; 29, ultrasonic cleaning pool; 30, ultrasonic generator; 31, reagent inlet; 32, guide plate; 33, second slag discharge port; 34, second lifting mechanism; 35, second feeding pipe; 36, centrifugal dehydration mechanism; 37, hot air drying mechanism; 38, water inlet pipe; 39, cooling main pipe; 40, cooling branch pipe; 41, spray head; 42, crushing cavity; 43, crushing motor; 44, driving shaft; 45, driven shaft; 46, crushing tooth; 47, lifting shaft; 48, lifting blade; 49, lifting motor; 50, centrifugal cavity; 51, roller; 52, centrifugal motor; 53, centrifugal shaft; 54, connecting frame; 55, limiting bearing; 56, liquid outlet; 57, connecting bearing; 58, drying cavity; 59, guide plate; 60, hot air pipe; 61, hot air fan. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] Please refer to Figures 1-8 The present application provides a technical solution: The plastic building template recycling and cleaning device comprises a crushing mechanism 18, a pretreatment mechanism, a rough cleaning pool 21, an ultrasonic cleaning pool 29, a centrifugal dewatering mechanism 36 and a hot air drying mechanism 37 connected in sequence. The crushing mechanism 18 comprises a crushing cavity 42, and a cooling mechanism 20 is arranged at the top of the crushing cavity 42. The pretreatment mechanism comprises a screening assembly 1 arranged obliquely on the ground and connected to one end of a discharge port of the crushing cavity 42, and a dust collecting hood 15 is arranged at the top of the screening assembly 1, a plurality of magnetic separators 10 are uniformly arranged in the dust collecting hood 15, and the heights of the plurality of magnetic separators 10 gradually decrease along the material running direction. The rough cleaning pool 21 is connected to one end of a discharge port of the screening assembly 1, the bottom of the rough cleaning pool 21 is in a conical structure, a first slag discharge port 26 is arranged at the center of the bottom of the rough cleaning pool 21, and at least two rough cleaning shafts 23 are arranged in parallel in the rough cleaning pool 21, rough cleaning blades 24 are arranged obliquely on the surface of each rough cleaning shaft 23, and the top of one end of the rough cleaning pool 21 away from the screening assembly 1 is connected to the ultrasonic cleaning pool 29 through a first lifting mechanism 27. The bottom of the ultrasonic cleaning pool 29 is provided with an ultrasonic generator 30, and a guide plate 32 is further arranged obliquely in the ultrasonic cleaning pool 29, a second slag discharge port 33 is arranged on the side wall of the ultrasonic cleaning pool 29 near the lower end of the guide plate 32, and the top of one end of the ultrasonic cleaning pool 29 away from the rough cleaning pool 21 is connected to the centrifugal dewatering mechanism 36 through a second lifting mechanism 34; a reagent inlet 31 is further arranged at the top of the ultrasonic cleaning pool 29 for adding a chemical reagent to further chemically treat the concrete residues attached to the surface of the plastic building template. The chemical reagent is, for example, a sodium hydroxide solution.

[0020] The hot air drying mechanism 37 is connected to the discharge port at the bottom of the centrifugal dewatering mechanism 36.

[0021] In the application, the screening assembly 1 comprises a plurality of support columns 3 arranged on the ground, the top of the support column 3 is connected to the bottom of the four corners of the screening box, and the height of the support column 3 at one end of the feeding port of the screening assembly 1 is greater than the height of the support column 3 at one end of the discharging port, a buffer structure is further arranged between the support column 3 and the screening box, a screening plate 2 is further arranged inside the screening box, and a slag bin 9 is further connected to the bottom of one end of the discharging port of the screening box through a slag outlet 8, and a plurality of vibration motors 7 are uniformly arranged on the bottom of the screening box. The buffer structure comprises a limiting column 5 arranged at the four corners of the bottom of the screening box, a buffer spring 6 is sleeved outside the limiting column 5, and one end of the limiting column 5 close to the support column 3 is movably connected to the buffer cavity 4 inside the top end of the support column 3. The screening plate 2 is fixedly connected to the inside of the screening box in a detachable manner, and a plurality of screening holes are uniformly arranged on the surface of the screening plate 2.

[0022] In the application, the dust collecting cover 15 is provided with a dust collecting pipe 17 at the top center, and the dust collecting pipe 17 is provided with a dust collecting fan 16 at the connecting position with the dust collecting cover 15. Each magnetic force separator 10 comprises mounting plates arranged on the front and rear sides of the dust collecting cover 15, a magnetic selection roller 11 is rotatably connected between the mounting plates, a driving motor is connected to one end of the magnetic selection roller 11 and penetrates the mounting plate and the dust collecting cover 15, an inclined scraper 12 is further arranged on one side of the magnetic selection roller 11, a collecting branch pipe 13 is connected to the lower end of the scraper 12 and penetrates the dust collecting cover 15, and the collecting branch pipes 13 are connected to the slag bin 9 through a collecting main pipe 14.

[0023] In the application, the cooling mechanism 20 comprises a cooling cover 19 arranged at the top of the crushing cavity 42, the cooling cover 19 is in an overall arc structure, cooling main pipes 39 and cooling branch pipes 40 are arranged on the outer side of the cooling cover 19, the cooling main pipes 39 are arranged along the curvature direction of the cooling cover 19, the cooling branch pipes 40 are distributed in a perpendicular state with the cooling main pipes 39, a plurality of spray heads 41 are uniformly arranged on the surface of one end of the cooling branch pipes 40 close to the crushing cavity 42, and the outer side of the cooling main pipes 39 is further connected with a water inlet pipe 38.

[0024] In the application, the crushing mechanism 18 comprises a crushing cavity 42, a driving shaft 44 and a driven shaft 45 are symmetrically arranged inside the crushing cavity 42, the surfaces of the driving shaft 44 and the driven shaft 45 are provided with crushing teeth 46 that are engaged with each other, a crushing motor 43 is connected to one end of the driving shaft 44 and penetrates the crushing cavity 42, and the driving shaft 44 and the driven shaft 45 are connected through gear transmission.

[0025] The first lifting mechanism 27 and the second lifting mechanism 34 both comprise a cylindrical lifting shell, a lifting shaft 47 is arranged inside the lifting shell, the surface of the lifting shaft 47 is provided with lifting blades 48, and one end of the lifting shaft 47 is connected to the driving end of a lifting motor 49 through a belt cooperation transmission wheel. The discharge end of the lifting shell of the first lifting mechanism 28 is connected to an ultrasonic cleaning pool 29 through a first feeding pipe 28, and the discharge end of the lifting shell of the second lifting mechanism 34 is connected to a centrifugal dehydration mechanism 36 through a second feeding pipe 35.

[0026] In the application, the centrifugal dehydration mechanism 36 comprises a centrifugal cavity 50 connected to the second lifting mechanism 34, a drum 51 is rotationally connected inside the centrifugal cavity 50, a limiting bearing 55 is arranged between the drum 51 and the centrifugal cavity 50, a centrifugal shaft 53 is arranged at the center of the drum 51, one end of the centrifugal shaft 53 penetrates the top of the centrifugal cavity 50 and is connected to a centrifugal motor 52, the other end of the centrifugal shaft 53 is connected to the inside of the drum 51 through a connecting frame 54, the connecting frame 54 is in a rice-shaped structure, a plurality of through holes are uniformly arranged on the surface of the side wall of the drum 51, and a liquid outlet 56 is further arranged on one side of the bottom of the centrifugal cavity 50.

[0027] In the application, the hot air drying mechanism 37 comprises a drying cavity 58 connected to the bottom of the drum 51, the drum 51 and the drying cavity 58 are rotationally connected through a connecting bearing 57, a valve is further arranged on one end of the drying cavity 58 close to the drum 51, a plurality of guide plates 59 are staggered arranged inside the drying cavity 58, and a hot air machine 61 is connected to the hot air pipe 60 through the hot air pipe 60 on one side of the discharge port of the bottom of the drying cavity 58.

[0028] In the application, one end of each of the two rough washing shafts 23 penetrates the side wall of the rough washing pool 21 and is connected to a rough washing motor 22, and a water inlet 25 is further arranged on the top of the rough washing pool 21.

[0029] In use, first, the plastic building templates to be processed are added to the crushing cavity 42 of the crushing mechanism 18, the driving shaft 44 is driven by the crushing motor 43, and then the driven shaft 45 is rotated under the action of the gear, in the case of forward rotation of the driving shaft 44, the driven shaft 45 is reversed, so that the crushing teeth 46 meshing with each other on the surfaces of the driving shaft 44 and the driven shaft 45 crush the plastic building templates, the crushed plastic building template particles enter the inside of the screening assembly 1 of the pretreatment mechanism, the screening assembly 1 is vibrated by the vibration motor 7, so that the concrete residues and some impurities contained in the plastic building templates are screened through the screening plate 2, and the concrete residues and some impurities are collected at the bottom of the screening plate 2 and then collected into the slag bin 9 through the slag outlet 8. In the screening process, the dust collecting fan 16 at the top of the dust collecting hood 15 uniformly collects the dust generated into the dust collecting pipe 17, and then is transported into the external dust collecting device for uniform treatment. At the same time, the magnetic separator 10 is driven by the driving motor, the magnetic roller 11 rotates, and some metal impurities in the plastic building templates are adsorbed. In the process of forward rotation of the magnetic roller 11, the metal impurities adsorbed on the surface of the magnetic roller 11 are scraped off by the scraper 12 and fall into the collecting branch pipe 13, and finally are uniformly collected into the slag bin 9 by the collecting branch pipe 13 cooperating with the collecting main pipe 14.

[0030] The plastic building templates screened and magnetically separated are slowly transported to the coarse washing pool 21 under the action of the vibration of the screening assembly 1, the coarse washing shaft 23 drives the coarse washing blade 24 to stir the plastic building template particles in the coarse washing pool 21 under the drive of the coarse washing motor 22, so as to perform coarse washing work, after the coarse washing is completed, the residues and sewage in the coarse washing pool 21 are uniformly discharged and treated through the first slag discharge port 26 at the bottom of the coarse washing pool 21, and water is added into the coarse washing pool 21 through the water inlet 25 before use.

[0031] The plastic building template particles after coarse washing float on the surface of the coarse washing pool 21, the lifting blade 48 in the first lifting mechanism 27 drives the plastic building template particles after coarse washing to enter the ultrasonic cleaning pool 29 through the first feeding pipe 28 under the action of the lifting motor 49 cooperating with the lifting shaft 47, and the plastic building template particles are ultrasonically cleaned by the ultrasonic generator 30, and chemical reagents are added through the reagent inlet 31 during the ultrasonic cleaning process, so as to further chemically treat the concrete residues attached to the surface of the plastic building template. The chemical reagent is, for example, sodium hydroxide solution. After the first ultrasonic cleaning is completed, the liquid in the ultrasonic cleaning pool 29 is replaced with clean water, and the second ultrasonic cleaning is performed to effectively remove the residual chemical reagents. The plastic building template particles after ultrasonic cleaning can enter the centrifugal dehydration mechanism 36 through the second feeding pipe 35 under the action of the second lifting mechanism 34.

[0032] The plastic building formwork particles entering the centrifugal dewatering mechanism 36 inside are driven to rotate by the centrifugal motor 52, the centrifugal shaft 53, and the connecting frame 54 at the end of the centrifugal shaft 53, and in the process of rotation of the drum 51, the drum 51 can be stably rotated inside the centrifugal cavity 50 under the action of the limiting bearing 55 and the connecting bearing 57, and at the same time, the moisture contained in the plastic building formwork particles can be dewatered through the through holes on the side wall surface of the drum 51, and the water is discharged through the liquid outlet 56, and the plastic building formwork particles after centrifugal dewatering enter the hot air drying mechanism 37 inside under the action of the valve.

[0033] The plastic building formwork particles entering the hot air drying mechanism 37 inside fall layer by layer through the guide plate 59 to the discharge port end of the hot air drying mechanism 37, and in the process of falling, the hot air generated by the hot air machine 61 is transmitted to the discharge port side at the bottom of the drying cavity 58 through the hot air pipe 60, so that the plastic building formwork particles in the process of falling are dried by hot air, and the moisture contained in the plastic building formwork particles is removed to the maximum extent.

[0034] The device gradually performs the following processes through the sequentially connected crushing mechanism 18, pretreatment mechanism, coarse washing pool 21, ultrasonic cleaning pool 29, centrifugal dewatering mechanism 36, and hot air drying mechanism 37: crushing large plastic building formwork, screening the separated concrete residues and impurities, coarse washing and ultrasonic cleaning the plastic building formwork after crushing and screening, and finally dewatering and drying treatment, so that the processed plastic building formwork particles can be directly added to the injection molding machine for injection molding use, and the overall processing efficiency is high.

[0035] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and range of the equivalent elements of the claims are intended to be encompassed in the present application, and any reference signs in the claims should not be considered as limiting the involved claims.

[0036] The above description is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, and any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be encompassed in the protection scope of the present application.

Claims

1. A plastic building template recycling and cleaning device, characterized in that, It includes a crushing mechanism (18), a pretreatment mechanism, a coarse washing tank (21), an ultrasonic cleaning tank (29), a centrifugal dehydration mechanism (36), and a hot air drying mechanism (37) connected in sequence. The crushing mechanism (18) includes a crushing chamber (42), and a cooling mechanism (20) is provided on the top of the crushing chamber (42). The pretreatment mechanism includes a screening component (1) that is inclinedly set on the ground and connected to one end of the discharge port of the crushing chamber (42). A dust collection hood (15) is provided on the top of the screening component (1). Multiple magnetic separators (10) are uniformly arranged inside the dust collection hood (15), and the height of the multiple magnetic separators (10) decreases sequentially along the material travel direction. The coarse washing tank (21) is connected to one end of the discharge port of the screening component (1). The bottom of the coarse washing tank (21) is conical. A first slag discharge port (26) is provided at the center of the bottom of the coarse washing tank (21). At least two coarse washing shafts (23) are arranged in parallel inside the coarse washing tank (21). Each coarse washing shaft (23) has a coarse washing blade (24) inclined on its surface. The top of the end of the coarse washing tank (21) away from the screening component (1) is connected to the ultrasonic cleaning tank (29) through a first lifting mechanism (27). An ultrasonic generator (30) is provided at the bottom of the ultrasonic cleaning tank (29). A guide plate (32) is also inclinedly provided inside the ultrasonic cleaning tank (29). A second slag discharge port (33) is provided at the lower end of the side wall of the ultrasonic cleaning tank (29) near the guide plate (32). The top of the end of the ultrasonic cleaning tank (29) away from the coarse washing tank (21) is connected to the centrifugal dewatering mechanism (36) through a second lifting mechanism (34). A hot air drying mechanism (37) is connected to the bottom outlet of the centrifugal dehydration mechanism (36).

2. The plastic building template recycling and cleaning device according to claim 1, characterized in that: The screening component (1) includes multiple support columns (3) set on the ground. The top of the support columns (3) is connected to the four corners of the bottom of the screening box. The height of the support column (3) at the feed port end of the screening component (1) is greater than the height of the support column (3) at the discharge port end. A buffer structure is also provided between the support column (3) and the screening box. A screening plate (2) is also provided inside the screening box. A slag bin (9) is also connected to the bottom of the discharge port end of the screening box through a slag outlet (8). Multiple vibration motors (7) are also evenly arranged at the bottom of the screening box. The buffer structure includes limiting posts (5) set at the four corners of the bottom of the screening box. A buffer spring (6) is sleeved on the outside of the limiting post (5). The end of the limiting post (5) near the support post (3) is movably connected to the buffer cavity (4) inside the top of the support post (3).

3. The plastic building template recycling and cleaning device according to claim 2, characterized in that: The screening plate (2) is fixedly connected to the inside of the screening box in a detachable manner, and the surface of the screening plate (2) is uniformly provided with multiple screening holes.

4. The plastic building template recycling and cleaning device according to claim 1, characterized in that: A dust collection pipe (17) is provided at the center of the top of the dust collection hood (15), and a dust collection fan (16) is provided at the connection between the dust collection pipe (17) and the dust collection hood (15). Each of the magnetic separators (10) includes mounting plates on the front and rear sides of the dust collection hood (15), and a magnetic separator (11) is rotatably connected between the mounting plates. One end of the magnetic separator (11) passes through the mounting plate and the dust collection hood (15) and is connected to a drive motor. A scraper (12) is also inclinedly arranged on one side of the magnetic separator (11). The lower end of the scraper (12) passes through the dust collection hood (15) and is connected to a collection branch pipe (13). The collection branch pipe (13) is connected to the slag bin (9) through the collection main pipe (14).

5. The plastic building formwork recycling and cleaning device according to claim 1, characterized in that: The cooling mechanism (20) includes a cooling cover (19) disposed on the top of the crushing chamber (42). The cooling cover (19) is generally arc-shaped. A cooling main pipe (39) and a cooling branch pipe (40) are attached to the outside of the cooling cover (19). The cooling main pipe (39) is disposed along the arc direction of the cooling cover (19). The cooling branch pipe (40) is perpendicular to the cooling main pipe (39) and is distributed in a cross shape. Multiple spray heads (41) are evenly disposed on the surface of the cooling branch pipe (40) near the crushing chamber (42). A water inlet pipe (38) is also connected to the outside of the cooling main pipe (39). The spray heads (41) are all disposed facing the center of the crushing chamber (42).

6. The plastic building template recycling and cleaning device according to claim 1, characterized in that: The crushing mechanism (18) includes a crushing chamber (42), inside which a drive shaft (44) and a driven shaft (45) are symmetrically arranged. The surfaces of the drive shaft (44) and the driven shaft (45) are provided with meshing crushing teeth (46). One end of the drive shaft (44) passes through the crushing chamber (42) and is connected to a crushing motor (43). The drive shaft (44) and the driven shaft (45) are connected by meshing gear transmission.

7. The plastic building formwork recycling and cleaning device according to claim 1, characterized in that: The first lifting mechanism (27) and the second lifting mechanism (34) both include a cylindrical lifting housing. A lifting shaft (47) is provided inside the lifting housing. Lifting blades (48) are provided on the surface of the lifting shaft (47). One end of the lifting shaft (47) is connected to the drive end of the lifting motor (49) through a belt and a transmission wheel.

8. A plastic building formwork recycling and cleaning device according to claim 1, characterized in that: The centrifugal dehydration mechanism (36) includes a centrifugal chamber (50) connected to the second lifting mechanism (34). A drum (51) is rotatably connected inside the centrifugal chamber (50). A limit bearing (55) is provided between the drum (51) and the centrifugal chamber (50). A centrifugal shaft (53) is provided at the center of the drum (51). One end of the centrifugal shaft (53) passes through the top of the centrifugal chamber (50) and is connected to a centrifugal motor (52). The other end of the centrifugal shaft (53) is connected to the inside of the drum (51) through a connecting frame (54). The connecting frame (54) has a star-shaped structure. Multiple through holes are evenly provided on the side wall surface of the drum (51). A liquid outlet (56) is also provided on one side of the bottom of the centrifugal chamber (50).

9. A plastic building formwork recycling and cleaning device according to claim 8, characterized in that: The hot air drying mechanism (37) includes a drying chamber (58) connected to the bottom of the drum (51). The drum (51) and the drying chamber (58) are rotatably connected by a connecting bearing (57). A valve is also provided at the top of the drying chamber (58) near the drum (51). Multiple guide plates (59) are arranged alternately inside the drying chamber (58). A hot air blower (61) is connected to the bottom outlet side of the drying chamber (58) through a hot air pipe (60).

10. A plastic building template recycling and cleaning device according to claim 1, characterized in that: One end of each of the two coarse washing shafts (23) passes through the side wall of the coarse washing tank (21) and is connected to a coarse washing motor (22). A water inlet (25) is also provided on the top of the coarse washing tank (21).