Stone crushing structure for concrete processing

Abstract

The utility model discloses a stone crushing structure for concrete processing, which comprises a frame for mounting and fixing and a crushing bin arranged above the left side of the frame, the right side of the crushing bin is in transmission connection with a driving component, a feed hopper is arranged at the top of the crushing bin, a material distributing component is arranged at the bottom of the crushing bin, and a material distributing pipeline is arranged in the material distributing component. A large particle outlet, a powder outlet and a backflow air pipe are arranged on the material distributing pipeline, a backflow air channel is arranged in the feeding hopper and communicated with the backflow air pipe, and under the action of wind power of the material distributing fan and the gravity of the materials, large-size materials are discharged and collected through the large particle outlet, and powder-shaped dust particles are discharged and collected through the powder outlet. And meanwhile, part of material distribution airflow enters the backflow air channel of the feeding hopper through the backflow air pipe and is blown out of the area of the crushing bin obliquely downwards through the flow guide holes, and the situation that dust particles escape from an opening of the feeding hopper to pollute the working environment during crushing is avoided.

Description

Technical Field

[0001] The utility model relates to the field of building accessories, in particular to a stone crushing structure for concrete processing. Background Art

[0002] Larger stones may cause uneven mixing when mixed with other concrete materials (such as cement, sand, etc.). Crushed stones have smaller particle sizes and are easier to mix with other materials to ensure the uniformity of concrete. Crushed stones can fill the tiny gaps in concrete, making the concrete more dense, thereby improving its strength and durability.

[0003] In the existing technology, when a conventional crusher is used for crushing, the crushed stone particles and fine dust particles are discharged from a single discharge port, resulting in serious dust pollution in the discharge port area. Long-term workers are prone to occupational diseases such as pneumoconiosis. At the same time, a large amount of dust particles can easily escape from the feed port of the conventional crusher during crushing, causing serious air pollution. Utility Model Content

[0004] The purpose of the present invention is to solve any one of the problems in the above-mentioned technologies, thereby proposing a stone crushing structure for concrete processing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a stone crushing structure for concrete processing, including a frame for installation and fixation and a crushing bin arranged on the upper left side thereof, the right side of the crushing bin is connected to the driving assembly for transmission, a feed hopper is provided on the top of the crushing bin, a dividing assembly is provided at the bottom of the crushing bin, a dividing pipe is provided in the dividing assembly, a large particle outlet, a powder outlet and a return air duct are provided on the dividing pipe, a return air duct is provided in the feed hopper, and the return air duct is connected to the return air duct.

[0006] Furthermore, the material distribution component consists of a material distribution pipe and a material distribution fan. The top of the material distribution pipe is a funnel-shaped collecting hopper. An L-shaped pipe body inclined to the lower left is provided below the collecting hopper. The top opening on the left side of the pipe body is an air supply port. A material distribution fan with a grille is provided in the air supply port. A large particle outlet is provided below the pipe body on the right side of the air supply port. The lower end opening of the L-shaped bend on the right side of the pipe body is a powder outlet. An L-shaped return air duct is provided above the pipe body on the left side of the powder outlet, and the return air duct is connected to the feed hopper.

[0007] Furthermore, the upper end of the feed hopper is funnel-shaped and the lower end is rectangular ring-shaped. A circle of rectangular ring-shaped hollow return air duct is provided in the feed hopper. The inner wall of the feed hopper is provided with multiple guide holes distributed in a circular array and opening obliquely downward and connected to the return air duct. A docking cavity is provided in the center of the right outer wall of the feed hopper, and the return air duct is fixedly installed in the docking cavity.

[0008] Furthermore, the crushing chamber is a rectangular chamber with two crushing rollers arranged inside, and the crushing rollers of the crushing chamber are connected to the driving assembly for transmission.

[0009] Furthermore, the driving assembly consists of a reduction gearbox, an electronic control box, and a power motor. The reduction gearbox is connected to the crushing roller of the crushing bin for transmission, the power motor is connected to the reduction gearbox through a belt for transmission, and the electronic control box controls the start and stop of the entire electric components of the equipment.

[0010] The beneficial effects of the utility model are:

[0011] A pipe body inclined from an L shape to the lower left is provided below the collecting hopper of the distribution pipe. The pipe body is provided with an air supply port, a large particle outlet, a return air duct and a powder outlet from left to right. A distribution fan with a grille is provided in the air supply port. When the crushed material flows from the collecting hopper into the pipe body below, under the action of the wind force of the distribution fan and the gravity of the material, the large-sized material is discharged and collected from the large particle outlet, and the powdered dust particles are discharged and collected from the powder outlet, effectively reducing the dust pollution generated when the material is crushed. At the same time, part of the distribution airflow enters the return air duct of the feed hopper from the return air duct, and is blown out obliquely downward toward the crushing bin area through the guide hole. The oblique downward airflow blown out from the guide hole has a negative pressure traction effect on the dust particles out of the feed hopper opening, driving them to flow into the crushing bin together, thereby avoiding the situation where dust particles escape from the feed hopper opening during crushing and pollute the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the entire utility model;

[0014] Figure 3 This is a structural diagram of the material separation component of the utility model;

[0015] Figure 4 This is a cross-sectional view of the material dividing assembly of the utility model;

[0016] Figure 5 This is a structural diagram of the material distribution pipeline of the utility model;

[0017] Figure 6 This is a schematic structural diagram of the feed hopper of the utility model;

[0018] Figure 7 It is a cross-sectional view of the feed hopper of the present utility model.

[0019] exist Figures 1 to 7The correspondence between the component names or lines and the drawing numbers is: frame 1, crushing bin 2, drive assembly 3, material distribution assembly 4, material distribution pipe 41, collecting hopper 411, air supply port 412, large particle outlet 413, powder outlet 414, return air duct 415, material distribution fan 42, feed hopper 5, docking chamber 51, return air duct 52, and guide hole 53. DETAILED DESCRIPTION

[0020] Please refer to Figures 1 to 7 ;

[0021] This embodiment provides a stone crushing structure for concrete processing, including a frame 1 for installation and fixation and a crushing bin 2 arranged on the upper left side thereof, the right side of the crushing bin 2 is connected to the driving component 3 for transmission, a feed hopper 5 is provided on the top of the crushing bin 2, a distribution component 4 is provided at the bottom of the crushing bin 2, a distribution pipe 41 is provided in the distribution component 4, a large particle outlet 413, a powder outlet 414 and a return air duct 415 are provided on the distribution pipe 41, a return air duct 52 is provided in the feed hopper 5, and the return air duct 52 is connected to the return air duct 415.

[0022] Preferably, the material distribution component 4 is composed of a material distribution pipe 41 and a material distribution fan 42. The top of the material distribution pipe 41 is a funnel-shaped collecting hopper 411. An L-shaped tube body inclined to the lower left is arranged below the collecting hopper 411. The top opening on the left side of the tube body is an air supply port 412. A material distribution fan 42 with a grille is arranged in the air supply port 412. A large particle outlet 413 is arranged below the tube body on the right side of the air supply port 412. The lower end opening of the L-shaped bend on the right side of the tube body is a powder outlet 414. An L-shaped return air duct 415 is arranged above the tube body on the left side of the powder outlet 414. The return air duct 415 is connected to the feed hopper 5.

[0023] In a specific embodiment, when the crushed material flows from the collecting hopper 411 into the lower pipe body, under the action of the wind force of the material distribution fan 42 and the gravity of the material, the large-sized material is discharged and collected from the large particle outlet 413, and the powdered dust particles are discharged and collected from the powder outlet 414, effectively reducing the dust pollution generated when the material is crushed.

[0024] Preferably, the upper end of the feed hopper 5 is funnel-shaped and the lower end is rectangular ring-shaped. A circle of rectangular ring-shaped hollow return air duct 52 is provided in the feed hopper 5. The inner wall of the feed hopper 5 is provided with a plurality of guide holes 53 distributed in a circular array and opening obliquely downward and connected to the return air duct 52. A docking cavity 51 is provided in the center of the right outer wall of the feed hopper 5, and the return air duct 415 is fixedly inserted into the docking cavity 51.

[0025] In a specific embodiment, when the air flow enters the return air duct 52 from the docking chamber 51 and is blown out obliquely downward from the guide hole 53 toward the crushing bin 2 area, the oblique downward air flow blown out from the guide hole 53 has a negative pressure traction effect on the dust particles coming out of the opening of the feed hopper 5, driving them to flow into the crushing bin 2 together, thereby avoiding the situation where dust particles escape from the opening of the feed hopper 5 during crushing and pollute the working environment.

[0026] Preferably, the crushing chamber 2 is a rectangular chamber with two crushing rollers disposed therein, and the crushing rollers of the crushing chamber 2 are connected to the driving assembly 3 for transmission.

[0027] Preferably, the drive assembly 3 consists of a reduction gearbox, an electronic control box, and a power motor. The reduction gearbox is connected to the crushing roller of the crushing bin 2 for transmission, the power motor is connected to the reduction gearbox through a belt for transmission, and the electronic control box controls the start and stop of the electric components of the entire equipment.

[0028] When the present invention is in use, the electric control box of the driving component 3 controls the power motor and the distribution fan 42 to start, the crushing roller of the crushing bin 2 starts to roll and crush, and the material to be crushed is poured from the feed hopper 5 into the crushing bin 2 for crushing, and the crushed material is collected and distributed by the distribution component 4. When the crushed material flows from the collecting hopper 411 into the lower pipe body, under the action of the wind force of the distribution fan 42 and the gravity of the material, the large-sized material is discharged and collected from the large particle outlet 413, and the powdered dust particles are discharged and collected from the powder outlet 414, which effectively reduces the dust pollution generated by the material during crushing. At the same time, part of the distribution airflow enters the return air duct 52 of the feed hopper 5 from the return air duct 415, and is blown out obliquely downward toward the crushing bin 2 area through the guide hole 53.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stone crushing structure for concrete processing, comprising a frame (1) for mounting and fixing and a crushing chamber (2) arranged on the upper left side thereof, the right side of the crushing chamber (2) being connected to a drive assembly (3) for transmission, and a feed hopper (5) being arranged on the top of the crushing chamber (2), characterized in that: A material distribution assembly (4) is provided at the bottom of the crushing bin (2), a material distribution pipe (41) is provided in the material distribution assembly (4), a large particle outlet (413), a powder outlet (414) and a return air duct (415) are provided on the material distribution pipe (41), a return air duct (52) is provided in the feed hopper (5), and the return air duct (52) is connected to the return air duct (415).

2. The stone crushing structure for concrete processing according to claim 1, characterized in that: The material distribution component (4) consists of a material distribution pipe (41) and a material distribution fan (42). The top of the material distribution pipe (41) is a funnel-shaped collecting hopper (411). An L-shaped tube body inclined to the lower left is provided below the collecting hopper (411). The top opening on the left side of the tube body is an air supply port (412). A material distribution fan (42) with a grid is provided in the air supply port (412). A large particle outlet (413) is provided below the tube body on the right side of the air supply port (412). The lower end opening of the L-shaped bend on the right side of the tube body is a powder outlet (414). An L-shaped return air duct (415) is provided above the tube body on the left side of the powder outlet (414). The return air duct (415) is connected to the feed hopper (5).

3. The stone crushing structure for concrete processing according to claim 2, characterized in that: The upper end of the feed hopper (5) is funnel-shaped and the lower end is rectangular ring-shaped. A circle of rectangular ring-shaped hollow return air duct (52) is provided in the feed hopper (5). The inner wall of the feed hopper (5) is provided with a plurality of guide holes (53) distributed in a circumferential array and opening obliquely downward and communicating with the return air duct (52). A docking cavity (51) is provided in the center of the right outer wall of the feed hopper (5), and the return air duct (415) is fixedly installed in the docking cavity (51).

4. The stone crushing structure for concrete processing according to claim 1, characterized in that: The crushing bin (2) is a rectangular chamber with two crushing rollers arranged therein, and the crushing rollers of the crushing bin (2) are connected to the driving assembly (3) for transmission.

5. The stone crushing structure for concrete processing according to claim 4, characterized in that: The driving assembly (3) is composed of a reduction gearbox, an electric control box, and a power motor. The reduction gearbox is connected to the crushing roller of the crushing bin (2) for transmission. The power motor is connected to the reduction gearbox for transmission via a belt. The electric control box controls the start and stop of the electric components of the entire equipment.

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