Molding sand treatment device

Abstract

The molding sand treatment device comprises a treatment box, a feeding port is formed in the upper surface of the treatment box, two first-stage crushing rollers are arranged below the feeding port and rotationally connected with the treatment box, the molding sand treatment device further comprises a material scattering cone, and the material scattering cone is arranged below the two first-stage crushing rollers and rotationally connected with the treatment box. The material scattering cone is connected with the inner wall of the treatment box through a connecting plate, and at least two first flow guide plates are sequentially arranged below the material scattering cone and are arranged in a staggered mode; according to the molding sand crushing device, molding sand can be uniformly crushed through the arrangement of the first-stage crushing roller and the second-stage crushing roller, the retention time of the molding sand passing through the first-stage crushing roller is prolonged through the arrangement of at least two first flow guide plates, and the molding sand is dried in cooperation with an air outlet in an air distribution plate; and the molding sand adhering to the flow guide plate can be scraped off through the arrangement of the material scraping assembly, iron-containing substances mixed in the molding sand can be extracted through the arrangement of the iron removal assembly, and the recycling rate of the molding sand is increased.

Description

Technical Field

[0001] The present application relates to the technical field of molding sand, and specifically relates to a molding sand processing device. Background Art

[0002] Molding sand is a material used for molding in casting. Molding sand is generally composed of original sand for casting, molding sand binder, additives and other molding materials mixed in a certain proportion. According to the different binders used, molding sand can be divided into clay sand, water glass sand, cement sand, resin sand, etc. Clay sand, water glass sand and resin sand are the most commonly used.

[0003] After the existing molding sand is used in casting, it usually needs to be recycled. However, during the recycling process of the existing recycling equipment, the impurity removal effect is poor, and the metal impurities in the molding sand cannot be quickly and thoroughly screened out. Moreover, the agglomerated molding sand cannot be broken during impurity removal, and the molding sand with high water content is easy to adhere to the inside of the equipment, resulting in poor recycling effect of the molding sand and reducing the efficiency of impurity removal and cleaning of the molding sand. Therefore, a molding sand processing device is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present application is to overcome the existing defects and provide a molding sand processing device, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical solution: A molding sand processing device includes a processing box. An inlet is provided on the upper surface of the processing box. Two primary crushing rollers are provided below the inlet. The two primary crushing rollers are rotatably connected to the processing box. A material spreading cone is further included. The material spreading cone is provided below the two primary crushing rollers. The material spreading cone is connected to the inner wall of the processing box through a connecting plate. Below the material spreading cone, at least two first guide plates are sequentially provided. The two first guide plates are arranged staggeredly. A scraping component is provided on the first guide plates. Two secondary crushing rollers are provided below the lowermost first guide plate. The two secondary crushing rollers are rotatably connected to the processing box. A connecting block is provided above the secondary crushing rollers. A air distribution plate is provided on the connecting block. At least two air outlets are provided at one end of the air distribution plate. An air inlet pipe is provided at the other end of the air distribution plate. The air inlet pipe penetrates through the processing box and is connected to an external hot air blower. An iron removal component is provided below the secondary crushing rollers. A partition is provided below the iron removal component. A filter screen is provided on one side of the partition. A vibration motor is provided at the bottom of the filter screen. One end of the filter screen extends out of the processing box. A third guide plate is provided at the other end of the partition. A first discharge port is opened at the position where the third guide plate contacts the processing box.

[0006] Further, the iron removal component mainly consists of an electromagnetic roller, a scraper, a mounting plate and a second guide plate. The second guide plate is provided below the secondary crushing rollers. An electromagnetic roller is provided below the end of the second guide plate. A mounting plate is provided at the bottom of the second guide plate. The mounting plate is connected to the electromagnetic roller through the scraper.

[0007] Further, the scraping component mainly consists of a multi-stage push rod and a scraping plate. The scraping plate is arranged on the first diversion plate, one end of the scraping plate is connected to the telescopic end of the multi-stage push rod, and the multi-stage push rod is fixed on the outer side of the treatment box through a mounting seat.

[0008] Further, feet are arranged at the bottom of the treatment box.

[0009] Further, a material guiding plate is arranged at the bottom of the feed inlet.

[0010] Further, a diversion block is arranged below the filter screen, and a second discharge port is arranged at the tail end of the diversion block.

[0011] Compared with the prior art: through the arrangement of the primary crushing roller and the secondary crushing roller in this application, the molding sand can be uniformly crushed. Through the arrangement of no less than two first diversion plates, the residence time of the molding sand passing through the primary crushing roller is increased, and the molding sand is dried in cooperation with the air outlet on the air distribution plate. Moreover, through the arrangement of the scraping component, the molding sand adhered to the diversion plate can be scraped off. Through the arrangement of the iron removal component, the iron-containing substances mixed in the molding sand can be removed, improving the recycling rate of the molding sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front sectional view of this application;

[0013] Figure 2 is Figure 1 the partial enlarged view of A in

[0014] Figure 3 is Figure 1 the partial enlarged view of B in

[0015] Figure 4 is Figure 1 the partial enlarged view of C in

[0016] In the figure: 1 treatment box, 2 feed inlet, 3 primary crushing roller, 4 material guiding plate, 5 material scattering cone, 6 multi-stage push rod, 7 scraping plate, 8 first diversion plate, 9 air inlet pipe, 10 air distribution plate, 11 air outlet, 12 connecting block, 13 secondary crushing roller, 14 second diversion plate, 15 mounting plate, 16 scraping knife, 17 electromagnetic roller, 18 third diversion plate, 19 filter screen, 20 vibration motor, 21 first discharge port, 22 second discharge port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application (for the convenience of description and understanding, hereinafter Figure 1Above is the description of the upper part). All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0018] Please refer to Figures 1-4 , this application provides a technical solution for a molding sand treatment device: A molding sand treatment device includes a treatment tank 1. There is a feed inlet 2 on the upper surface of the treatment tank 1. Below the feed inlet 2 are provided two primary crushing rolls 3, and the two primary crushing rolls 3 are rotatably connected to the treatment tank 1.

[0019] Specifically, one end of the primary crushing roll 3 extends out of the treatment tank 1 and is connected to an external motor for driving the primary crushing roll 3 to rotate.

[0020] It further includes a material spreading cone 5. Below the two primary crushing rolls 3 is provided a material spreading cone 5. The material spreading cone 5 is connected to the inner wall of the treatment tank 1 through a connecting plate. Below the material spreading cone 5 are successively provided no less than two first guide plates 8. The two first guide plates 8 are staggeredly arranged, and a scraping component is provided on the first guide plate 8.

[0021] Specifically, the material spreading cone 5 can spread the molding sand after the first crushing to prevent the molding sand from piling up and forming a blockage. The number of the first guide plates 8 is three, and the three first guide plates 8 are staggeredly arranged from top to bottom.

[0022] Below the lowermost first guide plate 8 are provided two secondary crushing rolls 13. The two secondary crushing rolls 13 are rotatably connected to the treatment tank 1. Above the secondary crushing rolls 13 is provided a connecting block 12. On the connecting block 12 is provided a air distribution plate 10. One end of the air distribution plate 10 is provided with no less than two air outlets 11. The other end of the air distribution plate 10 is provided with an air inlet pipe 9, and the air inlet pipe 9 penetrates through the treatment tank 1 and is connected to an external hot air blower.

[0023] Specifically, the connecting block 12 is fixed on the inner wall of the treatment tank 1, and the surface of the connecting block 12 corresponding to the secondary crushing roll 13 is arc-shaped to facilitate the rotation of the secondary crushing roll 13. One end of the secondary crushing roll 13 extends out of the treatment tank 1 and is connected to an external motor for driving the secondary crushing roll 13 to rotate.

[0024] More specifically, hot air is generated by the external hot air blower, transported to the air distribution plate 10 through the air inlet pipe 9, and sprayed out from the air outlets 11 to dry the molding sand.

[0025] Below the secondary crushing roll 13 is provided a iron removal component. Below the iron removal component is provided a partition plate. On one side of the partition plate is provided a filter screen 19. At the bottom of the filter screen 19 is provided a vibration motor 20. One end of the filter screen 19 extends out of the treatment tank 1. On the other end of the partition plate is provided a third guide plate 18. At the position where the third guide plate 18 contacts the treatment tank 1 is provided a first discharge port 21.

[0026] Specifically, through the settings of the vibration motor 20 and the filter screen 19, the sand after iron removal can be filtered, thereby improving the recycling efficiency of the sand.

[0027] Furthermore, the iron removal component mainly consists of an electromagnetic roller 17, a scraper 16, a mounting plate 15, and a second diversion plate 14. The second diversion plate 14 is arranged below the secondary crushing roller 13. An electromagnetic roller 17 is arranged below the tail end of the second diversion plate 14. A mounting plate 15 is arranged at the bottom of the second diversion plate 14. The mounting plate 15 is connected to the electromagnetic roller 17 through the scraper 16.

[0028] Specifically, one end of the electromagnetic roller 17 penetrates through the processing box 1 and is connected to an external motor, thereby driving the electromagnetic roller 17 to rotate. The sand passes through the rotating electromagnetic roller 17, and the electromagnetic roller 17 adsorbs the iron-containing substances in the sand, thereby performing the iron removal operation. And through the setting of the scraper 16, the iron-containing substances on the electromagnetic roller 17 can be scraped off onto the third diversion plate 18 and discharged from the first discharge pipe 21.

[0029] Furthermore, the scraping component mainly consists of a multi-stage push rod 6 and a scraper 7. The scraper 7 is arranged on the first diversion plate 8. One end of the scraper 7 is connected to the telescopic end of the multi-stage push rod 6. The multi-stage push rod 6 is fixed to the outside of the processing box 1 through a mounting seat.

[0030] With this setting, the multi-stage push rod 6 drives the scraper 7 to move along the first diversion plate 8, thereby scraping off the sand adhering to the first diversion plate 8, thereby improving the recycling efficiency of the sand.

[0031] Furthermore, support feet are arranged at the bottom of the processing box 1, and the support feet mainly serve to support the processing box 1.

[0032] Furthermore, a guide plate 4 is arranged at the bottom of the feed inlet 2. Through the setting of the guide plate 4, the sand can be guided between the two primary crushing rollers 3, thereby facilitating the primary crushing rollers 3 to perform crushing treatment on the sand.

[0033] Furthermore, a diversion block is arranged below the filter screen 19. A second discharge port 22 is arranged at the tail end of the diversion block. The diversion block has an inclination direction opposite to that of the filter screen 19.

[0034] During use: the molding sand enters the processing box 1 through the feed inlet 2, and the molding sand is guided by the material guide plate 4 to the middle of the two primary crushing rolls 3. The two primary crushing rolls 3 are driven to rotate by an external motor, so as to crush the molding sand. Subsequently, the molding sand is scattered by the material scattering cone 5, and the scattered molding sand falls onto the first guide plate 8. At the same time, hot air is generated by an external hot air blower and is conveyed through the air inlet pipe 9 to the air distribution plate 10, and is ejected from the air outlet 11 to dry the molding sand on the first guide plate 8. The molding sand on the first guide plate 8 falls onto the secondary crushing rolls 13, and the two secondary crushing rolls 13 are driven to rotate by an external motor, so as to crush the molding sand again. The molding sand after secondary crushing falls onto the second guide plate 14, and falls onto the filter screen 19 through the rotating electromagnetic roll 17. The molding sand is filtered by the cooperation of the vibration motor 20 and the filter screen 19.

[0035] The molding sand passes through the rotating electromagnetic roll 17, and the electromagnetic roll 17 adsorbs the iron-containing substances in the molding sand, so as to perform the iron removal operation. And through the arrangement of the scraper 16, the iron-containing substances on the electromagnetic roll 17 can be scraped off onto the third guide plate 18 and discharged from the first discharge pipe 21.

[0036] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A molding sand processing device, comprising a processing box (1), wherein the upper surface of the processing box (1) is provided with a feed inlet (2), two primary crushing rollers (3) are provided below the feed inlet (2), and the two primary crushing rollers (3) are rotatably connected to the processing box (1), characterized in that: It also includes a bulking cone (5), wherein the bulking cone (5) is arranged below the two primary crushing rollers (3), the bulking cone (5) is connected to the inner wall of the processing box (1) through a connecting plate, and no less than two first guide plates (8) are arranged in sequence below the bulking cone (5), the two first guide plates (8) are arranged in a staggered manner, and a scraping assembly is arranged on the first guide plate (8), and two secondary crushing rollers (13) are arranged below the lowermost first guide plate (8), and the two secondary crushing rollers (13) are rotatably connected to the processing box (1), and a connecting block (12) is placed on the secondary crushing roller (13), and an air distribution plate (10) is arranged on the connecting block (12). At least two air outlets (11) are arranged at one end of the air distribution plate (10), an air inlet pipe (9) is arranged at the other end of the air distribution plate (10), and the air inlet pipe (9) passes through the processing box (1) and is connected to an external hot air blower. An iron removal component is arranged below the secondary crushing roller (13), a partition is arranged below the iron removal component, a filter screen (19) is arranged on one side of the partition, a vibration motor (20) is arranged at the bottom of the filter screen (19), one end of the filter screen (19) extends out of the processing box (1), a third guide plate (18) is arranged at the other end of the partition, and a first discharge port (21) is opened at a position where the third guide plate (18) contacts the processing box (1).

2. A molding sand processing device according to claim 1, characterized in that: The iron removal assembly mainly consists of an electromagnetic roller (17), a scraper (16), a mounting plate (15) and a second guide plate (14); the second guide plate (14) is arranged below the secondary crushing roller (13); an electromagnetic roller (17) is arranged below the tail end of the second guide plate (14); a mounting plate (15) is arranged at the bottom of the second guide plate (14); and the mounting plate (15) is connected to the electromagnetic roller (17) via the scraper (16).

3. A molding sand processing device according to claim 1, characterized in that: The scraper assembly mainly consists of a multi-stage push rod (6) and a scraper (7); the scraper (7) is arranged on the first guide plate (8); one end of the scraper (7) is connected to the telescopic end of the multi-stage push rod (6); and the multi-stage push rod (6) is fixed to the outside of the processing box (1) through a mounting seat.

4. A molding sand processing device according to claim 1, characterized in that: The bottom of the processing box (1) is provided with supporting feet.

5. A molding sand processing device according to claim 1, characterized in that: A material guide plate (4) is provided at the bottom of the feed opening (2).

6. A molding sand processing device according to claim 1, characterized in that: A guide block is provided below the filter screen (19), and a second discharge port (22) is provided at the rear end of the guide block.

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