Concrete aggregate collecting hopper

Abstract

The concrete aggregate collecting hopper comprises a main body, a cover plate, a supporting plate and a limiting frame, the lower portion of the main body is installed on the ground through supporting legs, the supporting plate is installed in the middle of an inner cavity of the main body, and the supporting plate is perpendicular to the long edge of the main body; mounting holes are formed in the two sides of the cover plate, connecting columns are arranged on the inner wall of the main body and the two sides of the supporting plate, the cover plate is mounted in the main body through the connecting columns, and the connecting columns are inserted into the mounting holes; the limiting frame is installed on the upper portion of the cover plate, and the limiting frame is arranged above one side of the cover plate in a blocking mode. The cover plate is arranged on the upper portion of the main body, when aggregate is poured down, the cover plate turns over due to unbalanced stress, the aggregate falls into the main body, the cover plate is driven by the balance weight part to return to the horizontal state after falling, accordingly, the upper portion of the main body is blocked, flying dust drifting is reduced, meanwhile, air is extracted from the main body in cooperation with the air collecting cover, negative pressure is formed in the main body, and the aggregate is prevented from falling off. Flying dust drifting is further reduced, so that the concrete mixing plant meets the environment-friendly requirement.

Description

Technical Field

[0001] The present application relates to the technical field of concrete production equipment, and in particular to a concrete aggregate collection hopper. Background Art

[0002] Concrete aggregate refers to the granular, loose material that acts as a framework or filler in concrete. It is divided into coarse aggregate and fine aggregate. Coarse aggregate refers to pebbles, crushed stone, etc., while fine aggregate refers to natural sand, artificial sand, etc. Concrete aggregates are generally transported to mixing plants by dump trucks. After unloading, the aggregates are sent to storage tanks by loaders and feeding conveyors. In order to facilitate the loader to pour the aggregates onto the feeding conveyor, a collecting hopper is often provided at the end of the feeding conveyor. After the loader pours the aggregates into the collecting hopper, the aggregates are sent to the feeding conveyor through the collecting hopper. In this process, dust is easily generated. For this reason, people have designed collecting hoppers that can reduce dust. For example, China with application number 202320521737.2 discloses a dust recovery device for a special concrete aggregate hopper, which includes a dust collecting hood that is annularly surrounded and arranged at the top opening of the hopper body of the aggregate hopper. The dust collecting hood is open on one side and its opening is arranged obliquely upward toward the inner side of the hopper body. The bottom of the dust collecting hood is connected to an exhaust component for extracting gas and dust in the dust collecting hood and collecting the extracted dust. The device sucks away dust through negative pressure. However, in actual use, the dust collecting hood draws dust from the open space, and the dust will quickly drift away, and the dust collection effect is not good. Therefore, a concrete aggregate hopper is needed, which creates a relatively closed space through a cover plate to reduce the diffusion of dust, and cooperates with a negative pressure fan to collect dust, so as to achieve the effect of reducing dust. Utility Model Content

[0003] In order to solve the above problems, the present application proposes a concrete aggregate collection hopper, which creates a relatively closed space through a cover plate to reduce the spread of dust, and cooperates with a negative pressure fan to absorb dust, thereby achieving the effect of reducing dust.

[0004] This application is achieved through the following technical solutions:

[0005] The present application proposes a concrete aggregate hopper, comprising: a main body, a cover plate, a support plate, and a limit frame. The lower part of the main body is installed on the ground through supporting feet, and the support plate is installed in the middle of the inner cavity of the main body, and the support plate is perpendicular to the long side of the main body; mounting holes are provided on both sides of the cover plate, and connecting columns are provided on the inner wall of the main body and both sides of the support plate. The cover plate is installed in the main body through the connecting columns, and the connecting columns are inserted into the mounting holes; the limit frame is installed on the upper part of the cover plate, and the limit frame blocks the upper side of the cover plate, and the cover plate covers the opening at the upper part of the main body.

[0006] Furthermore, the mounting hole deviates from the central axis of the cover plate by 3 cm to 10 cm.

[0007] Furthermore, the cover plate is provided with a counterweight portion, which is located at the lower portion of the deviated side of the mounting hole.

[0008] Furthermore, an air collecting hood is provided at the lower portion of the main body, the air collecting hood is communicated with the inner cavity of the main body below the cover plate, and the upper portion of the air collecting hood is connected to the negative pressure fan through a negative pressure air duct.

[0009] Furthermore, a filter is provided at the connection between the air collecting hood and the inner cavity of the main body.

[0010] Furthermore, a discharge port is provided at the lower portion of the main body, a discharge valve plate is provided on the discharge port, and the discharge valve plate is installed below the discharge port through a slot.

[0011] The beneficial effects of the present application are as follows: by arranging a cover plate on the upper part of the main body, when the aggregate is poured down, the cover plate flips due to the unbalanced force, causing the aggregate to fall into the main body. After the aggregate falls, the cover plate returns to a horizontal state driven by the counterweight part, thereby blocking the upper part of the main body and reducing the dispersion of dust. At the same time, the air is extracted from the main body in conjunction with the wind collecting hood to form a negative pressure in the main body, further reducing the dispersion of dust, so that the concrete mixing station meets the requirements of environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic structural diagram of the wind collecting hood of the utility model;

[0014] Figure 3 This is a structural diagram of the support plate of the utility model;

[0015] Figure 4 This is a structural diagram of the utility model in which the cover plate is in a horizontal state;

[0016] Figure 5 This is a structural diagram of the cover plate of the utility model in a flipped state;

[0017] In the figure: 1-main body, 2-cover plate, 3-support plate, 4-limiting frame, 5-mounting hole, 6-connecting column, 7-counterweight part, 8-air collecting cover, 9-negative pressure air duct, 10-filter, 11-discharge valve plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0021] like Figures 1 to 5 As shown, an embodiment of the present invention provides a concrete aggregate hopper, comprising: a main body 1, a cover plate 2, a support plate 3, and a limit frame 4. The lower part of the main body 1 is installed on the ground through supporting feet, and the support plate 3 is installed in the middle of the inner cavity of the main body 1, and the support plate 3 is perpendicular to the long side of the main body 1; mounting holes 5 are provided on both sides of the cover plate 2, and connecting columns 6 are provided on the inner wall of the main body 1 and on both sides of the support plate 3. The cover plate 2 is installed in the main body 1 through the connecting columns 6, and the connecting columns 6 are inserted into the mounting holes 5; the limit frame 4 is installed on the upper part of the cover plate 2, and the limit frame 4 blocks the upper side of the cover plate 2, and the cover plate 2 covers the opening at the upper part of the main body 1.

[0022] 1 and 2. The hopper 1 is provided with 8 to 12 cover plates 2 on the upper part of the main body 1. After the cover plates 2 are flipped, the aggregate can quickly fall into the lower part of the main body 1. After the material is dropped, the cover plates 2 are restored to a horizontal state under the action of the counterweight 7 and are limited by the limit frame 4 to keep them horizontal. The multiple cover plates 2 cover the openings on the upper part of the main body 1 to prevent dust from floating. At the same time, the negative pressure air duct 9 continuously extracts the air in the inner cavity of the main body 1 below the cover plate 2, thereby forming a negative pressure in the cavity to prevent dust from floating. Compared with the dust suction in the open space, the device can form a relatively closed space to prevent dust from floating and improve the effect of negative pressure dust suction, so that the concrete mixing plant meets the requirements of environmental protection.

[0023] Preferably, the mounting hole 5 deviates from the central axis of the cover plate 2 by 3 cm to 10 cm. When pouring aggregate, the cover plate 2 is subjected to unbalanced force on both sides of the mounting hole 5, thereby causing the cover plate 2 to flip over, so that the aggregate falls from the upper part of the cover plate 2 into the lower part of the main body 1.

[0024] In a preferred embodiment, the cover plate 2 is provided with a counterweight portion 7, which is located at the lower part of the deviated side of the mounting hole 5. The center of gravity of the cover plate 2 is offset to one side of the counterweight portion 7 through the counterweight portion 7. After the aggregate falls from the cover plate 2, the center of gravity is offset to one side of the counterweight portion 7, so that one side of the counterweight portion 7 moves downward and the other side moves upward, thereby rotating the cover plate 2. Under the obstruction of the limit frame 4, the cover plate 2 is kept horizontal. Through the mutual cooperation of multiple cover plates 2, the upper part of the main body 1 is covered to prevent dust from floating and form a relatively closed environment, which is convenient for the negative pressure fan to suck away the dust.

[0025] Specifically, an air collecting hood 8 is provided at the lower part of the main body 1, and the air collecting hood 8 is connected to the inner cavity of the main body 1 below the cover 2. The upper part of the air collecting hood 8 is connected to the negative pressure fan through a negative pressure air duct 9, and is blocked at the upper part of the main body 1 by the cover 2, so that its inner cavity is relatively closed. The air collecting hood 8 is connected to the inner cavity of the main body 1, so that the air in the main body 1 can be extracted through the connection of the negative pressure fan to form a negative pressure, thereby avoiding dust from floating and affecting the surrounding environment.

[0026] Specifically, a filter screen 10 is provided at the connection between the wind collecting hood 8 and the inner cavity of the main body 1. The filter screen 10 can block the aggregate and prevent it from being sucked into the negative pressure fan.

[0027] Preferably, a discharge port is provided at the lower part of the main body 1, and a discharge valve plate 11 is provided on the discharge port. The discharge valve plate 11 is installed below the discharge port through a slot. By pulling the discharge valve plate 11, the opening and closing of the discharge port can be controlled, and the discharge speed can also be controlled at the same time, so that the speed of the collecting hopper matches the feeding conveyor belt.

[0028] Preferably, the support plate 3 is provided with a limit block, which can limit the cover plate 2 when the cover plate 2 is flipped over to prevent it from excessive deflection, so that the cover plate 2 can automatically return to a horizontal state after the aggregate falls.

[0029] Of course, the present application may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present application.

Claims

1. A concrete aggregate hopper, characterized in that: include: A main body (1), a cover plate (2), a support plate (3), and a limiting frame (4); the lower part of the main body (1) is installed on the ground through supporting feet, the support plate (3) is installed in the middle of the inner cavity of the main body (1), and the support plate (3) is perpendicular to the long side of the main body (1); mounting holes (5) are provided on both sides of the cover plate (2), and connecting columns (6) are provided on the inner wall of the main body (1) and both sides of the support plate (3); the cover plate (2) is installed in the main body (1) through the connecting columns (6), and the connecting columns (6) are inserted into the mounting holes (5); the limiting frame (4) is installed on the upper part of the cover plate (2), the limiting frame (4) blocks the upper part of one side of the cover plate (2), and the cover plate (2) covers the opening at the upper part of the main body (1).

2. A concrete aggregate collection hopper according to claim 1, characterized in that: The mounting hole (5) deviates from the central axis of the cover plate (2) by 3 cm to 10 cm.

3. A concrete aggregate collection hopper according to claim 2, characterized in that: The cover plate (2) is provided with a counterweight portion (7), and the counterweight portion (7) is located at the lower portion of the deviated side of the mounting hole (5).

4. A concrete aggregate collection hopper according to claim 1, characterized in that: The lower part of the main body (1) is provided with an air collecting hood (8), which is communicated with the inner cavity of the main body (1) below the cover plate (2), and the upper part of the air collecting hood (8) is connected to the negative pressure fan through a negative pressure air duct (9).

5. A concrete aggregate collection hopper according to claim 4, characterized in that: A filter screen (10) is provided at the connection between the air collecting cover (8) and the inner cavity of the main body (1).

6. A concrete aggregate collection hopper according to claim 1, characterized in that: A discharge port is provided at the lower portion of the main body (1), and a discharge valve plate (11) is provided on the discharge port. The discharge valve plate (11) is installed below the discharge port through a slot.

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