Automatic coarse sand recovery device of sand making machine

Abstract

The utility model discloses an automatic coarse sand recovery device of a sand making machine, which comprises a sand making machine shell, the sand making machine shell is a shell with a rectangular cavity structure, the top of the sand making machine shell is provided with a feed port, the feed port is provided with a feed runner through a feed pipe in an extending manner, and the feed runner is provided with a discharge port. A shunting cavity is formed in a middle shaft of the feeding rotating wheel and is communicated with the feeding pipe; the utility model relates to the technical field of sand making machines, in particular to an automatic coarse sand recovery device of a sand making machine, which is characterized in that a separation mesh layer for distributing materials is arranged at the bottom of a sand making machine shell, the purpose of distributing according to gravel is achieved through the hopper-shaped separation mesh layer, coarse sand with unqualified particle sizes is gathered through the separation mesh layer, and the coarse sand with unqualified particle sizes is recovered after operation of a backflow channel. The refluxing device is used for refluxing and readding unqualified gravels, so that materials can be crushed again, and the equipment is simple in structure and is mounted depending on the sand making machine, so that the sand making effect can be ensured, and labor and physical strength can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand making machines, in particular to an automatic coarse sand recovery device for a sand making machine. Background Art

[0002] Sand making machine is a type of equipment that uses large pieces of solid materials to crush and make sand. It is widely used in smelting, roads, railways, construction and other fields. Its main function is to crush large pieces of materials so that the materials meet the particle size requirements for processing.

[0003] At present, in the application process of sand making machines, most of them use a rotating feed impeller to throw the material into the crushing structure inside the sand making machine or the material itself for high-speed collision for crushing. Therefore, since the crushing process cannot control the particle size, there is often a problem of sand and gravel being too large to meet the use requirements in the initial stage of sand making. Therefore, this part of coarse sand needs to be recycled and crushed again. At this stage, this part of coarse sand is mainly diverted through screening devices, and then workers or elevators transport the material back to the crusher feed port. Not only is the labor-intensive but the equipment structure is heavy, and it occupies workshop space outside the sand making machine. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an automatic coarse sand recovery device for a sand making machine, which can save manpower and ensure the sand making effect.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an automatic coarse sand recovery device for a sand making machine, comprising a sand making machine housing, the sand making machine housing is a housing with a rectangular cavity structure, a feed port is arranged on the top of the sand making machine housing, a feed wheel is extended from the feed port through a feed pipe, a split flow cavity is opened on the central axis of the feed wheel and is connected with the feed pipe;

[0006] The outer ring of the feed wheel is provided with a plurality of ejection outlets connected to the diversion cavity, and the inner ring of the sand making machine housing is provided with a plurality of destroyers surrounding the outside of the feed wheel;

[0007] The bottom end of the sand making machine housing is connected with a separation net layer, the center of the separation net layer is provided with a separation outlet, and the sand making machine housing is provided with a power motor which is linked with a feed pipe through a gear set;

[0008] The bottom end of the sand making machine housing is connected to the separation mesh layer and is provided with a double-channel discharge hopper, a first discharge port is provided at the center of the double-channel discharge hopper and is connected to the separation discharge port, and a second discharge port is provided on one side of the bucket body of the double-channel discharge hopper and corresponds to the lower cavity of the separation mesh layer;

[0009] The first discharge port is connected to a reflux channel, and a reflux device is arranged on the reflux channel.

[0010] Preferably, the separation net layer is a bucket-shaped structure, and a plurality of separation sieve holes are densely provided on the separation net layer.

[0011] Preferably, a feed hopper is connected to the top of the feed pipe, and the feed hopper is connected to the feed pipe via a pair of flange plates.

[0012] Preferably, the reflux channel consists of two parts, one part is a guide channel obliquely connected to the second discharge port, and the other part is a vertical channel connected to the guide channel.

[0013] Preferably, the reflux device comprises a reflux rotating shaft, the reflux rotating shaft is assembled in the reflux channel, a reflux spiral plate is sleeved on the reflux rotating shaft, and a driving motor is arranged on the reflux rotating shaft.

[0014] Preferably, the top end of the reflux channel is connected with an inclined ramp to the feed pipe.

[0015] The beneficial effects of the utility model are as follows: a separation mesh layer for diverting materials is arranged at the bottom of the sand making machine casing. While the diversion according to the sand and gravel is completed through the bucket-shaped separation mesh layer, the coarse sand with unqualified particle size is gathered through the separation mesh layer. After the operation of the reflux channel, the reflux device is used to complete the reflux and re-addition of unqualified sand and gravel, so that the material can be crushed again. The equipment has a simple structure and is installed based on the sand making machine itself, which can not only ensure the sand making effect but also save labor and physical strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model.

[0017] Figure 2 It is a top view of the utility model.

[0018] Figure 3 It is a partial stereogram of the utility model.

[0019] In the figure: 1. Sand making machine housing; 2. Feed port; 3. Feed pipe; 4. Feed impeller; 5. Diversion cavity; 6. Ejection outlet; 7. Destroyer; 8. Separation mesh layer; 9. Separation outlet; 10. Power motor; 11. Gear set; 12. Dual-channel outlet hopper; 13. First outlet; 14. Second outlet; 15. Reflux channel; 16. Feed hopper; 17. Reflux shaft; 18. Reflux spiral plate; 19. Drive motor; 20. Inclined ramp. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-3 As shown, an automatic coarse sand recovery device for a sand making machine is provided. The equipment is based on a sand making machine casing 1, and the sand making machine casing 1 is a shell with a rectangular cavity structure. A feed port 2 is arranged on the top of the sand making machine casing 1. The feed port 2 serves as a passing space for a feed pipe 3, and a feed wheel 4 is arranged along the feed port 2 and extends through the feed pipe 3.

[0022] A diversion cavity 5 is provided on the central axis of the feed wheel 4 and is connected to the feed pipe 3. The block material is put into the sand making machine housing 1 through the feed pipe 3. The sand making machine housing 1 is provided with a power motor 10 which is linked to the feed pipe 3 through a gear set 11. Through the rotation of the feed wheel 4 and the feed pipe 3, the falling block material is diverted to the ejection outlet 6 by the diversion cavity 5 under the action of centrifugal force. The ejection outlet 6 is arranged outside the diversion cavity 5 so that the material can evenly self-collide under the action of huge centrifugal force, or pass through a number of breakers 7 arranged inside the sand making machine housing 1, so that the breakers 7 collide with the block material and crush it into a suitable size.

[0023] Since the block materials thrown out during sand making cannot be controlled in specific size after crushing, it is necessary to divert the materials with unqualified particle sizes for easy recovery and re-crushing. A separation mesh layer 8 is connected to the bottom end of the sand making machine housing 1. The separation mesh layer 8 with a bucket-shaped structure is used to make the crushed materials fall and gather toward the center along the separation mesh layer 8, so that the unqualified materials gather toward the separation discharge port 9 in the center of the separation mesh layer 8 and are discharged from the separation processing port, while the qualified materials fall directly from the holes of the separation mesh layer 8 under the separation of the separation mesh layer 8.

[0024] The bottom end of the sand making machine housing 1 is connected to the separation mesh layer 8 and is provided with a double-channel discharge hopper 12. A first discharge port 13 is provided at the center of the double-channel discharge hopper 12 and is connected to the separation discharge port 9. A second discharge port 14 is provided on one side of the bucket body of the double-channel discharge hopper 12 and corresponds to the lower cavity of the separation mesh layer 8. The first discharge port 13 is used to discharge materials with unqualified particle sizes, and the second discharge port 14 is used to discharge materials with qualified particle sizes. The first discharge port 13 is connected to a reflux channel 15, and a reflux device is provided on the reflux channel 15. The material in the reflux channel 15 is lifted upward by the reflux device and re-enters the feed pipe 3 to complete secondary crushing.

[0025] Furthermore, the separation mesh layer 8 is a bucket-shaped structure, and a plurality of separation sieve holes are densely provided on the separation mesh layer 8, and the diameter of the separation sieve holes is selected according to the set requirements.

[0026] Furthermore, a feed hopper 16 is connected to the top of the feed pipe 3, and the feed hopper 16 is connected to the feed pipe 3 through a pair of flange plates. The feed hopper 16 expands the feed range and facilitates the entry of reflux materials.

[0027] Furthermore, the reflux channel 15 is composed of two parts, one part is a guide channel obliquely connected to the second discharge port 14, and the other part is a vertical channel connected to the guide channel. The inclined guide channel can make the material gather to one side of the vertical channel under the action of gravity, and the vertical channel is used as an upward channel for material reflux.

[0028] Furthermore, the reflux device includes a reflux rotating shaft 17 , which is assembled in the reflux channel 15 , a reflux spiral plate 18 is sleeved on the reflux rotating shaft 17 , and a driving motor 19 is arranged on the reflux rotating shaft 17 .

[0029] During the specific implementation process, the reflux shaft 17 is driven to rotate by the driving motor 19, so that the reflux shaft 17 drives the reflux spiral plate 18 to rotate, so that the reflux spiral plate 18 cooperates with the vertical channel to transport the unqualified materials that fall into the bottom of the vertical channel upward. When the material goes up to the top of the reflux channel 15, the material moves toward the inclined ramp 20 under the action of gravity, and the material is re-added to the feed pipe 3 through the inclined ramp 20.

[0030] The automatic coarse sand recovery device of the sand making machine is provided with a separation mesh layer 8 for diverting materials at the bottom of the sand making machine shell 1. The bucket-shaped separation mesh layer 8 is used to achieve the purpose of diversion according to sand and gravel. At the same time, the coarse sand with unqualified particle size is gathered through the separation mesh layer 8. After the operation of the reflux channel 15, the reflux device is used to complete the reflux and re-addition of unqualified sand and gravel, so that the material can be crushed again. The equipment has a simple structure and is installed based on the sand making machine itself. It can not only ensure the sand making effect, but also save manual labor.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic coarse sand recovery device for a sand making machine, comprising a sand making machine housing (1), wherein the sand making machine housing (1) is a housing with a rectangular cavity structure, a feed port (2) is arranged at the top of the sand making machine housing (1), a feed wheel (4) is extended from the feed port (2) through a feed pipe (3), and the device is characterized in that: A split flow cavity (5) is provided on the central axis of the feed wheel (4) and is connected to the feed pipe (3); The outer ring of the feed wheel (4) is provided with a plurality of ejection outlets (6) which are in communication with the diversion cavity (5); the inner ring of the sand making machine housing (1) is provided with a plurality of destroyers (7) which surround the outside of the feed wheel (4); The bottom end of the sand making machine housing (1) is connected to a separation net layer (8), the center of the separation net layer (8) is provided with a separation outlet (9), and the sand making machine housing (1) is provided with a power motor (10) which is linked to the feed pipe (3) through a gear set (11); The bottom end of the sand making machine housing (1) is connected to the separation mesh layer (8) and is provided with a double-channel discharge hopper (12); a first discharge port (13) is provided at the center of the double-channel discharge hopper (12) and is connected to the separation discharge port (9); a second discharge port (14) is provided on one side of the hopper body of the double-channel discharge hopper (12) and corresponds to the lower cavity of the separation mesh layer (8); The first discharge port (13) is connected to a reflux channel (15), and a reflux device is provided on the reflux channel (15).

2. The automatic coarse sand recovery device for a sand making machine according to claim 1 is characterized in that: The separation net layer (8) is a bucket-shaped structure, and a plurality of separation sieve holes are densely arranged on the separation net layer (8).

3. The automatic coarse sand recovery device for a sand making machine according to claim 2 is characterized in that: The top of the feed pipe (3) is connected to a feed hopper (16), and the feed hopper (16) is connected to the feed pipe (3) via a pair of flange plates.

4. The automatic coarse sand recovery device for a sand making machine according to claim 3 is characterized in that: The reflux channel (15) is composed of two parts, one part is a guide channel obliquely connected to the second discharge port (14), and the other part is a vertical channel connected to the guide channel.

5. The automatic coarse sand recovery device for a sand making machine according to claim 4 is characterized in that: The reflux device comprises a reflux rotating shaft (17), the reflux rotating shaft (17) is assembled in the reflux channel (15), a reflux spiral plate (18) is sleeved on the reflux rotating shaft (17), and a driving motor (19) is arranged on the reflux rotating shaft (17).

6. The automatic coarse sand recovery device for a sand making machine according to claim 5, characterized in that: The top end of the reflux channel (15) is connected to an inclined ramp (20) and communicates with the feed pipe (3).

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