Discharging plate feeding machine

Abstract

The utility model belongs to the field of coal transfer devices, and particularly relates to a discharging plate feeder which comprises a machine frame, a plate chain conveying assembly and a feeding assembly, the feeding assembly comprises a protection box body, a feeding hopper and a dust adsorption mechanism, and a box body outlet is formed in the front side wall of the protection box body; the side wall of the feeding hopper is arranged in a double-layer mode. The dust adsorption mechanism comprises an adsorption cavity formed by a gap between the two side walls of the feeding hopper and a suction opening, a plurality of communicating holes are formed in the side wall of the inner side of the feeding hopper, and the suction opening is connected with an exhaust fan; an annular stop plate is arranged at the end, close to the suction opening, in the adsorption cavity and perpendicularly connected to one side wall of the feeding hopper, and a gap exists between the stop plate and the other side wall of the feeding hopper. The plate feeding machine is used for solving the technical problems that dust pollution is easily generated when an existing plate feeding machine conveys raw coal, and the body health of workers is not facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of coal transfer devices, in particular to a discharge plate feeder. Background Art

[0002] A thermal power plant, also known as a thermal power plant, is a facility that uses combustible materials as fuel to produce electricity. Currently, most thermal power plants are fueled by coal. Large thermal power plants use pulverized coal to improve efficiency. Therefore, the raw coal in the coal hopper is first fed to a pulverizer and ground into pulverized coal. Plate feeders are often used to transport the raw coal, enabling continuous material conveying. They not only have high throughput and can transport large pieces of material, but also operate reliably in harsh environments such as high temperature and high humidity.

[0003] However, when using an apron feeder to transport raw coal, dust pollution is easily generated when the raw coal enters the apron feeder's discharge hopper, which pollutes the working environment and the surrounding environment of the factory and is detrimental to the health of the workers. Therefore, it is urgent to improve the existing apron feeder to absorb the generated dust to reduce environmental pollution. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a discharge plate feeder to solve the technical problem that the current plate feeder easily generates dust pollution when transporting raw coal, which is not conducive to the health of workers.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a unloading plate feeder, which includes a frame, a plate chain transport assembly connected to the frame, and a feeding assembly arranged above the plate chain transport assembly, wherein the feeding assembly includes a protective box mounted above the plate chain transport assembly, a feeding hopper arranged in the protective box, and a dust adsorption mechanism arranged in the feeding hopper, wherein the front side wall of the protective box in the forward direction of the plate chain transport assembly is provided with a box outlet; the side wall of the feeding hopper is double-layered; the dust adsorption mechanism includes an adsorption chamber formed by a gap between the two side walls of the feeding hopper and an exhaust port arranged at the upper end of the adsorption chamber, a plurality of connecting holes are provided on the side wall on the inner side of the feeding hopper, and the exhaust port is connected to the exhaust fan; an annular stop plate is provided at the end near the exhaust port in the adsorption chamber, and the stop plate is vertically connected to one side wall of the feeding hopper, and there is a gap between the stop plate and the other side wall, which is used to block and intercept the dust adsorbed into the adsorption chamber.

[0006] Preferably, at least two stop plates are provided and are alternately connected to the two side walls of the feeding hopper.

[0007] Preferably, at least two exhaust ports are provided and are evenly arranged along the circumference of the upper end of the feeding hopper.

[0008] Preferably, a cylindrical discharge port is provided at the lower end of the feeding hopper.

[0009] Preferably, the lower end of the adsorption chamber is communicated with the feed opening.

[0010] Preferably, the plate chain transport assembly includes a conveying plate, a drive shaft for driving the conveying plate to move, and a motor for driving the drive shaft to rotate.

[0011] The beneficial effects of adopting the technical solution of this utility model are:

[0012] The utility model is provided with a dust adsorption component on the feeding hopper of the feeding component. When the raw coal is transported, the raw coal falls from the feeding hopper to the plate chain transport component, and the dust generated in the process is adsorbed by the dust adsorption component, thereby reducing pollution to the environment and ensuring the health safety of the staff. By setting the side wall of the feeding hopper to be double-layered, and providing a connecting port connected to the feeding hopper on the inner side wall, an adsorption chamber is formed in the gap between the double-layer side walls, and an exhaust port connected to the exhaust fan is provided at the top of the adsorption chamber. When dust is generated during the transportation of raw coal, the dust is sucked into the adsorption chamber from the connecting port, thereby reducing the diffusion of dust into the environment; by providing an annular stop plate at the end near the exhaust port in the adsorption chamber, the stop plate is vertically connected to one of the side walls of the feeding hopper, and there is a gap between the stop plate and the other side wall. The dust entering the adsorption chamber hits the stop plate in the process of entering the exhaust port, and the solid dust will be intercepted by the stop plate, thereby reducing the solid dust from being sucked to the exhaust fan. The dust intercepted by the stop plate will gather and fall downward due to gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic front cross-sectional view of an embodiment of a discharge plate feeder;

[0014] Figure 2 The figure is a schematic cross-sectional view of a feeding hopper of an embodiment of a discharge plate feeding machine.

[0015] in, Figure 1 、 2 In the figure, 1-frame, 11-support plate, 2-plate chain transport assembly, 21-conveyor plate, 22-drive shaft, 3-feeding assembly, 31-protective box, 311-box outlet, 32-feeding hopper, 321-adsorption chamber, 322-connecting hole, 323-exhaust port, 324-stop plate, 325-discharge port. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and do not limit the scope of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0019] The specific embodiments are as follows:

[0020] like Figure 1 、 2 As shown, a discharge plate feeder includes a frame 1, a plate chain transport assembly 2, and a feeding assembly 3. Support plates 11 are vertically provided on the front and rear sides of the frame 1. The plate chain transport assembly 2 is fixedly supported on the frame 1 by the support plates 11. The feeding assembly 3 is transported from left to right.

[0021] The feeding assembly 3 is mounted on the left side of the frame 1. It comprises a protective housing 31, a feeding hopper 32, and a dust collection mechanism. The protective housing 31 is fixedly mounted on two support plates 11, with its left sidewall in close contact with the transport surface of the plate chain transport assembly 2. An outlet 311 is located at the lower right end of the protective housing 31 to facilitate the entry and exit of raw coal. The feeding hopper 32 is fixed to the top of the protective housing 31 and extends into the interior of the housing.

[0022] The dust adsorption mechanism includes an adsorption chamber 321, an exhaust port 323, and an exhaust fan (not shown in the figure). The side wall of the feeding hopper 32 is double-layered, and a cavity is formed between the double-layer walls, and the cavity forms the adsorption chamber 321. A plurality of dispersed connecting holes 322 are provided on the inner side wall of the feeding hopper 32, so that the adsorption chamber 321 is connected to the space inside the feeding hopper 3. An exhaust port 323 is provided at the upper end of the adsorption chamber 321, and the exhaust port 323 is connected to the exhaust fan to provide adsorption power. A stop plate 324 is provided at the end of the adsorption chamber 321 near the exhaust port 323. The stop plate 324 is an annular style that surrounds the feeding hopper. The stop plate 324 is vertically connected to one of the side walls of the feeding hopper 32, and there is a gap between it and the other side wall. During the adsorption and exhaust process, the fluid is blocked and deflected at the stop plate 324, and the solid dust will be trapped on the stop plate 324 and fall onto the plate chain transport component 2 after accumulating a certain amount, thereby reducing the dust from being sucked into the exhaust fan.

[0023] When the discharge plate feeder of this embodiment is in use, raw coal is put into the feeding hopper 32, and falls onto the plate chain conveyor assembly 2 through the feeding hopper 32. Under the transportation of the plate chain conveyor assembly 2, it flows out from the box outlet 311 on the protective box 31. Dust usually occurs when the raw coal is put into the feeding hopper 32. Under the suction action of the exhaust fan, the dust enters the adsorption chamber 321 through the connecting hole 322. The fluid flows upward along the direction of the suction force. When the fluid moves to the stop plate 324, it is blocked and deflected. The solid dust is intercepted and accumulated at the stop plate 324. When it accumulates to a certain amount, it falls onto the plate chain conveyor assembly 2. As the raw coal blocks are transported downward, the solid dust is reduced from being sucked into the exhaust fan and the diffusion of dust into the environment is reduced, thereby reducing environmental pollution and ensuring the health of the workers.

[0024] Furthermore, at least two stop plates 324 are provided, and the stop plates 324 are alternately connected to the two side walls of the feeding hopper 32, so that the fluid flows in an S-shape at the stop plates 324, thereby intercepting as much solid dust as possible.

[0025] In this embodiment, two stopping plates 324 are provided.

[0026] Furthermore, at least two air exhaust ports 323 are provided, and the air exhaust ports 323 are evenly arranged along the circumference of the upper end of the feeding hopper 32 .

[0027] In this embodiment, two air exhaust ports 323 are provided, which can be connected to the same exhaust fan or to two exhaust fans respectively, so as to ensure that sufficient suction force is provided.

[0028] Furthermore, a cylindrical discharge port 325 is provided at the lower end of the feeding hopper 32 , which has a certain guiding effect on the raw coal flowing through, thereby reducing excessive dispersion of the raw coal on the plate chain transport assembly 2 .

[0029] Furthermore, the lower end of the adsorption chamber 321 is connected to the discharge port 325 , and the solid dust falls from the adsorption chamber 321 into the discharge port 325 , and falls onto the plate chain transport component 2 through the discharge port 325 .

[0030] The plate chain transport assembly further includes a conveyor plate 21, a drive shaft 22, and a motor (not shown). At least two drive shafts 22 are provided, connected to the frame 1 via brackets or directly rotatably connected to the support plate 11. A drive shaft 22 is provided at each end of the frame 1. The conveyor plate 21 is arranged around the drive shaft 22, which is driven by the motor to ensure transport capacity.

[0031] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A discharge plate feeder, comprising a frame, a plate chain transport assembly connected to the frame, and a feeding assembly arranged above the plate chain transport assembly, characterized in that: The feeding assembly includes a protective box mounted above the plate chain transport assembly, a feeding hopper arranged in the protective box, and a dust adsorption mechanism arranged in the feeding hopper. The protective box is located on the front side wall in the forward direction of the plate chain transport assembly and is provided with a box outlet; the side wall of the feeding hopper is double-layered; the dust adsorption mechanism includes an adsorption chamber formed by the gap between the two side walls of the feeding hopper and an exhaust port arranged at the upper end of the adsorption chamber, a plurality of connecting holes are provided on the side wall inside the feeding hopper, and the exhaust port is connected to the exhaust fan; an annular stop plate is provided at the end of the adsorption chamber near the exhaust port, and the stop plate is vertically connected to one side wall of the feeding hopper and has a gap with the other side wall, which is used to block and retain the dust adsorbed into the adsorption chamber.

2. A discharge plate feeding machine according to claim 1, characterized in that: At least two stop plates are provided and are alternately connected to the two side walls of the feeding hopper.

3. A discharge plate feeding machine according to claim 2, characterized in that: At least two air exhaust ports are provided and are evenly arranged along the circumference of the upper end of the feeding hopper.

4. A discharge plate feeding machine according to claim 3, characterized in that: The lower end of the feeding hopper is provided with a cylindrical feeding port.

5. A discharge plate feeding machine according to claim 4, characterized in that: The lower end of the adsorption chamber is communicated with the feed opening.

6. A discharge plate feeder according to any one of claims 1 to 5, characterized in that: The plate chain transport assembly includes a conveying plate, a driving shaft for driving the conveying plate to move, and a motor for driving the driving shaft to rotate.

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