Coal collecting hopper and coal sampling machine

Abstract

The utility model discloses a coal collecting hopper and a coal sampling machine, and particularly relates to the technical field of coal sampling equipment, the coal collecting hopper comprises a collecting hopper body and an anti-freezing layer, and the anti-freezing layer is fixedly laid on the inner wall of the collecting hopper body. The anti-freezing layer can prevent materials with large moisture from being in direct contact with the metal face of the collecting hopper body, the situation that the materials are frozen to block the collecting hopper is reduced, the equipment failure rate is reduced, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal sampling equipment, in particular to a coal collecting hopper and a coal sampling machine. Background Art

[0002] The purpose of coal sampling is to collect a representative sample from a ship or batch of coal. This sample is then analyzed to determine characteristics such as BTU (British Thermal Units), ash, sulfur, and moisture content. The results of these analyses are used to determine contract prices, plant operating efficiency, and compliance with environmental standards.

[0003] During sampling, the coal car is stopped at the sampling location. The crane is operated by the driving handle, and the crane is adjusted to avoid the car's tie rod. The auger is then aimed at the high coal level to drill down and take a sample. Before sampling, the sampling system sets the hopper door closed, and the coal extracted by the auger is temporarily stored in the hopper. Currently, open-pit coal production is increasing, and the moisture content of the coal exceeds 30%. Due to the high moisture content of the raw coal entering the plant, sampling is performed using a sampler in winter. When the auger lifts the coal into the hopper, the high moisture content freezes in the frozen metal hopper, blocking the passage and causing equipment failure and preventing further sampling.

[0004] At present, operators wrap the electric heating insulation cotton around the freezing-prone parts of the sampler, which can solve the problem of mild freezing. However, it has little effect on severe freezing. In addition, the electric heating insulation cotton has low firmness when wrapped and is easy to slip. The electric heating insulation cotton needs to be connected to the power supply, which poses a safety hazard. Utility Model Content

[0005] The purpose of the utility model is to provide a coal collecting hopper and a coal sampling machine to solve the problems existing in the above-mentioned prior art, reduce the clogging of the collecting hopper by material freezing, reduce the equipment failure rate, and improve work efficiency.

[0006] To achieve the above purpose, the present invention provides the following solutions:

[0007] The utility model provides a coal collecting hopper, comprising a collecting hopper body and an antifreeze layer. The antifreeze layer is fixedly laid on the inner wall of the collecting hopper body.

[0008] Preferably, it further comprises a hopper door, which can block or open the outlet of the hopper body, and the antifreeze layer is fixedly laid on the side of the hopper door close to the hopper body.

[0009] Preferably, it further comprises a hopper door opening and closing cylinder, which is arranged on the collecting hopper body, and the piston rod of the hopper door opening and closing cylinder is connected to the collecting hopper door.

[0010] Preferably, the antifreeze layer is fixedly laid on two inner side surfaces and one inner bottom surface of the aggregate hopper body.

[0011] Preferably, the antifreeze layer is made of plastic.

[0012] Preferably, the antifreeze layer is made of wood.

[0013] Preferably, the antifreeze layer is fixed to the inner wall of the hopper body by screws, and the antifreeze layer is fixed to the hopper door by screws.

[0014] The utility model also provides a coal sampling machine, comprising the coal collecting hopper and an auger, wherein the conveying pipe outlet of the auger is communicated with the inlet of the coal collecting hopper.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The utility model provides a coal hopper and a coal sampling machine. An antifreeze layer is fixedly laid on the inner wall of a metal hopper body, which can isolate coal with high moisture content from direct contact with the metal surface of the hopper body, reduce freezing and clogging of materials in the hopper, reduce equipment failure rate, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of the coal collection hopper of Example 1;

[0019] Figure 2 This is a schematic structural diagram of the coal collection hopper and baffle of Example 1;

[0020] Figure 3 This is a schematic structural diagram of the coal sampling machine of Example 2.

[0021] In the figure: 1- hopper body; 2- antifreeze layer; 3- conveying pipe; 4- hopper door; 5- hopper door opening and closing cylinder. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 efforts are within the scope of protection of the present invention.

[0023] The purpose of the utility model is to provide a coal collecting hopper and a coal sampling machine to solve the problems existing in the above-mentioned prior art, reduce the clogging of the collecting hopper by material freezing, reduce the equipment failure rate, and improve work efficiency.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Example 1

[0026] This embodiment provides a coal collection hopper, such as Figure 1 As shown, the hopper comprises a hopper body 1 and an antifreeze layer 2, which is fixedly laid on the inner wall of the hopper body 1. The antifreeze layer 2 is fixedly laid on the inner wall of the metal hopper body to prevent coal with high moisture content from coming into direct contact with the metal wall of the hopper, reducing the risk of material freezing and clogging in the hopper. This can reduce equipment failure rates and improve work efficiency. The hopper has a simple structure and is safe and reliable to use.

[0027] It is further preferred in the implementation manner of this embodiment that Figure 2 As shown, the coal aggregate hopper also includes a hopper door 4, which can block or open the outlet of the hopper body 1. The hopper door 4 is fixedly provided with an antifreeze layer 2 near the side of the hopper body 1. When the coal with high moisture content transported from the conveying pipe 3 of the auger is temporarily stored in the coal aggregate hopper, the antifreeze layer 2 can also isolate the coal with high moisture content from direct contact with the metal wall of the hopper door 4, thereby reducing the freezing of materials on the hopper door 4 and facilitating the opening and closing of the hopper door 4.

[0028] It is further preferred in the implementation of this embodiment that the coal aggregate hopper also includes a hopper door opening and closing cylinder 5, which is arranged on the aggregate hopper body 1, and the piston rod of the hopper door opening and closing cylinder 5 is connected to the aggregate hopper door 4.

[0029] It is further preferred in the implementation manner of this embodiment that the antifreeze layer 2 is fixedly laid on two inner side surfaces and one inner bottom surface of the collecting hopper body 1.

[0030] It is further preferred in the implementation manner of this embodiment that the antifreeze layer 2 is made of plastic.

[0031] It is further preferred in the implementation manner of this embodiment that the antifreeze layer 2 is made of wood.

[0032] It is further preferred in the implementation manner of this embodiment that the antifreeze layer 2 is fixed to the inner wall of the hopper body 1 by screws, and the antifreeze layer 2 is fixed to the hopper door 4 by screws, which is easy to install and has good firmness.

[0033] Example 2

[0034] This embodiment provides a coal sampling machine, such as Figure 3 As shown, it includes the coal hopper and auger of Example 1, and the outlet of the conveying pipe 3 of the auger is connected to the inlet of the coal hopper. Before sampling, the outlet of the coal hopper is closed by the hopper door 4. The centrifugal force caused by the spiral rotation speed of the spiral blades in the conveying pipe 3 causes the material to move toward the edge of the spiral blades and press on the conveying pipe wall, thereby increasing the lateral pressure acting on the conveying pipe wall and the friction between the conveying pipe wall and the material. This friction prevents the material from rotating with the spiral blades and generating relative motion with the spiral, thereby realizing the upward movement of the material. The material rises to the outlet of the conveying pipe 3 and enters the hopper body 1 from the inlet of the hopper body 1. The antifreeze layer 2 can isolate the coal with high moisture content from direct contact with the metal surface of the coal hopper, reduce the freezing of the material and blockage in the hopper, and thus ensure that the material can be smoothly separated from the coal hopper.

[0035] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A coal collecting hopper, characterized in that: It includes a hopper body, an antifreeze layer and a hopper door. The antifreeze layer is fixedly laid on the inner wall of the hopper body. The hopper door can block or open the outlet of the hopper body. The antifreeze layer is fixedly laid on the side of the hopper door close to the hopper body.

2. The coal collecting hopper according to claim 1, characterized in that: It also includes a hopper door opening and closing cylinder, which is arranged on the collecting hopper body, and the piston rod of the hopper door opening and closing cylinder is connected to the collecting hopper door.

3. The coal collecting hopper according to claim 1, characterized in that: The antifreeze layer is fixedly laid on two inner side surfaces and one inner bottom surface of the aggregate hopper body.

4. The coal collecting hopper according to claim 1, characterized in that: The material of the antifreeze layer is plastic.

5. The coal collecting hopper according to claim 1, characterized in that: The material of the antifreeze layer is wood.

6. The coal collecting hopper according to claim 1, characterized in that: The antifreeze layer is fixed on the inner wall of the collecting hopper body by screws, and the antifreeze layer is fixed on the collecting hopper door by screws.

7. A coal sampling machine, characterized in that: The invention comprises the coal collecting hopper and the auger according to any one of claims 1 to 6, wherein the conveying pipe outlet of the auger is connected to the inlet of the coal collecting hopper.

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