Reverse dip angle safety access door for aggregate bin

Abstract

The utility model discloses a reverse dip angle safety access door for a collecting hopper, which belongs to the technical field of coal transportation, screening and crushing and comprises an outer door frame component fixedly connected to an opening of the side wall of the collecting hopper, and an inner movable baffle is hinged to one side, close to the collecting hopper, of the outer door frame component. A closed outer door plate is hinged to the other side of the outer door frame assembly, an inner barrier strip is fixedly connected to the side, close to the inner movable baffle, in the outer door frame assembly, and an outer barrier strip is fixedly connected to the side, away from the collecting hopper, in the outer door frame assembly. The device has the advantages of being convenient to use, high in safety and capable of improving maintenance efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of coal transportation, screening and crushing, and specifically refers to a reverse-angle safety inspection door for an aggregate hopper. Background Art

[0002] The 2×350MW units of the thermal power plant are designed to burn low-quality coal (52%), coal gangue (24%), and coal slime, and are equipped with 4 high-amplitude vibrating screens and 4 crushers. The thermal power plant burns a large proportion of coal slime (the proportion of blending is greater than 70%), and the humidity of the coal slime is high (>13%), which cannot be dried. The coal transportation system is seriously bonded, especially at the corners of the inner wall of the aggregate hopper, which is prone to coal accumulation and frequent coal blockage. The equipment must be stopped in time and unpacked to clear the blockage, which seriously restricts the normal operation of the coal transportation system, resulting in practical problems such as repeated work for personnel, high safety pressure, aggravated equipment aging, and high management costs. Summary of the invention

[0003] The utility model aims to solve the technical problem mentioned in the above background technology, and provides a reverse-angle safety inspection door for a collection hopper to solve the problem of cleaning the coal accumulation on the inner wall of the collection hopper.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a reverse-tilt safety inspection door for an aggregate hopper, comprising an outer door frame assembly, the outer door frame assembly is fixedly connected to the opening of the side wall of the aggregate hopper, an inner movable baffle is hinged on the side of the outer door frame assembly close to the aggregate hopper, and a closed outer door panel is hinged on the other side of the outer door frame assembly, an inner baffle is fixedly connected on one side of the outer door frame assembly close to the inner movable baffle, and an outer baffle is fixedly connected on the side of the outer door frame assembly away from the aggregate hopper.

[0005] In some embodiments, the lower frame plate of the outer door frame assembly is tilted upward from one end of the material collecting hopper, and the lower end of the lower frame plate extends longer than a vertical line of the upper edge of the material collecting wall opening.

[0006] In some embodiments, the inner movable baffle is smaller in size than the opening in the side wall of the collection hopper.

[0007] In some embodiments, one end of the inner movable baffle is hinged to the outer door frame assembly, and the other end thereof is provided with an inner door pin to fix it to the outer door frame assembly.

[0008] In some embodiments, one side of the outer door panel is hinged to the outer door frame assembly, and the other side thereof is provided with an outer door pin and a door handle, and the outer door pin can fix the outer door panel to the outer door frame assembly.

[0009] In some embodiments, the inner baffle is a limiting member of the inner movable baffle.

[0010] In some embodiments, the outer stop strip is a limiting member of the outer door panel.

[0011] In some embodiments, the outer door frame assembly is made of ordinary carbon steel material.

[0012] In some embodiments, the inner movable baffle is made of high manganese steel plate.

[0013] Compared with the prior art, the advantages of the utility model are: 1. The size of the inner movable baffle is designed to be smaller than the opening, which is convenient for opening the inner movable baffle after cleaning the accumulated coal; 2. The lower frame plate of the outer door frame assembly is upwardly inclined, which can prevent coal blocks from rolling out and injuring people when cleaning the accumulated coal.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a safety inspection door according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of a safety inspection door according to an embodiment of the utility model installed on a collecting hopper.

[0017] In the attached drawings: 1. outer door frame assembly; 2. lower frame plate; 3. inner movable baffle; 4. outer door panel; 5. inner baffle; 6. outer baffle; 7. outer door pin; 8. door handle; 9. inner door pin; 100. safety inspection door. DETAILED DESCRIPTION

[0018] The utility model is described in further detail below.

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0020] Combination Figure 1 , Figure 2 As shown, this embodiment provides a reverse-angle safety inspection door for the aggregate hopper. It is necessary to open an appropriate position on the side wall of the aggregate hopper in advance, and then weld the safety inspection door of this embodiment. During welding, the outer door frame needs to be kept to completely cover the opening.

[0021] The outer door frame assembly is made of ordinary carbon steel material. In this embodiment, 6mm steel plate and 30mm angle iron are selected. The outer door frame assembly is provided with an outer door panel, hinges, outer door pins, door handles, etc.

[0022] The inner movable baffle is made of wear-resistant material. In this embodiment, 12mm high manganese steel plate and Φ12mm high manganese steel bar are selected.

[0023] When the aggregate hopper is in use, it is necessary to pull up the inner movable baffle so that it abuts against the inner baffle bar, keep the inner movable baffle closed, and lock the inner door pin, rotate the outer door panel sideways to abut against the outer baffle bar, keep the outer door panel closing the outer door frame assembly, and lock the outer door pin to prevent coal dust leakage.

[0024] When the accumulated coal needs to be cleaned, open the outer door pin, hold the door handle, turn the outer door panel clockwise to open it, then open the inner door pin, rotate and push the inner movable baffle downward inside the hopper, and then clean the accumulated coal in the hopper.

[0025] It should be noted that: 1. The lower frame plate of the outer door frame assembly is upwardly inclined, and the lateral extension length is slightly larger than the vertical position of the opening in the upper door frame. The angle refers to the size of the opening so as not to affect the cleaning operation of personnel and to prevent coal blocks from rolling out and injuring personnel when cleaning the accumulated coal; 2. In this embodiment, the inner movable baffle is rotated inward to open, and the opening is slightly larger than the size of the inner movable baffle, and it can also be rotated outward to open, and the opening is slightly smaller than the size of the inner movable baffle.

[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A reverse-angle safety inspection door for an aggregate hopper, characterized in that: It includes an outer door frame assembly, which is fixedly connected to the opening of the side wall of the collecting hopper. The side of the outer door frame assembly close to the collecting hopper is hinged with an inner movable baffle, and the other side of the outer door frame assembly is hinged with a closed outer door panel. The side of the outer door frame assembly close to the inner movable baffle is fixedly connected with an inner baffle bar, and the side of the outer door frame assembly away from the collecting hopper is fixedly connected with an outer baffle bar.

2. The anti-tilt safety inspection door for the aggregate hopper according to claim 1 is characterized in that: The lower frame plate of the outer door frame assembly is inclined upward from one end of the material collecting hopper, and the lower end of the lower frame plate extends longer than a vertical line of the upper edge of the material collecting wall opening.

3. The anti-tilt safety inspection door for the aggregate hopper according to claim 1 is characterized in that: The size of the inner movable baffle is smaller than the opening on the side wall of the collecting hopper.

4. The anti-tilt safety inspection door for the aggregate hopper according to claim 1 is characterized in that: One end of the inner movable baffle is hinged on the outer door frame assembly, and the other end is provided with an inner door pin, which can fix it on the outer door frame assembly.

5. The anti-tilt safety inspection door for the aggregate hopper according to claim 1 is characterized in that: One side of the outer door panel is hinged to the outer door frame assembly, and the other side thereof is provided with an outer door pin and a door handle, wherein the outer door pin can fix the outer door panel to the outer door frame assembly.

6. The anti-tilt safety inspection door for the aggregate hopper according to claim 1 is characterized in that: The inner baffle is a limiting piece of the inner movable baffle.

7. The reverse-angle safety inspection door for the aggregate hopper according to claim 1 is characterized in that: The outer baffle is a limiting piece of the outer door panel.

8. The anti-tilt safety inspection door for the aggregate hopper according to claim 1 is characterized in that: The outer door frame assembly is made of ordinary carbon steel material.

9. The anti-tilt safety inspection door for the aggregate hopper according to claim 1, characterized in that: The inner movable baffle is made of high manganese steel plate.

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