Coal gangue treatment method

Abstract

The invention discloses a coal gangue treatment method. The coal gangue treatment method comprises the steps that 1, a long ditch is dug under a mountain; step 2, laying loess at the bottom of the ditch, firstly wrapping each piece of coal gangue with the loess, and then laying a layer of coal gangue on the loess; and step 3, continuously paving the loess on the paved coal gangue layer, and repeating the step 2 until the uppermost layer of coal gangue is buried by the loess. Compared with the prior art, the method has the advantages that each piece of coal gangue is firstly wrapped by loess and then stacked underground in a layered mode, each layer is wrapped by loess, air can be exhausted, air can be prevented from being mixed into gaps, the spontaneous combustion phenomenon is avoided, and water source pollution can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of coal gangue processing methods, and in particular to a coal gangue processing method. Background Art

[0002] Currently, there is no good way to deal with coal gangue through natural means. If they are piled together, the sulfur that accompanies the coal gangue will generate heat inside the pile and reach a certain temperature, causing the coal gangue to spontaneously combust, polluting the air. If stored in the open air and washed by rain, it will pollute water sources.

[0003] The existing method of treating coal gangue by burying it with soil is also to pile the coal gangue together and then bury it. Although the surface is covered with soil, there is still air inside the pile, and there are many gaps inside, which makes it easy for air to slowly enter, and the spontaneous combustion of coal gangue cannot be avoided. Summary of the invention

[0004] The purpose of the present invention is to provide a method for treating coal gangue to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a method for treating coal gangue, comprising:

[0007] Step 1: Dig a long trench at the foot of the mountain;

[0008] Step 2: Spread loess at the bottom of the ditch, cover each piece of coal gangue with loess first, and then spread a layer of coal gangue on the loess;

[0009] Step 3: Continue to spread loess on the laid coal gangue layer, and repeat step 2 until the top layer of coal gangue is covered with loess.

[0010] Compared with the prior art, the advantages of the present invention are: the above steps can be followed, a long ditch can be dug at the foot of the mountain or an existing ditch can be used; each piece of coal gangue is first wrapped with loess, and then piled underground in layers, with a unit layer of 10 meters long, 6 meters wide and 3 meters deep. Each unit layer is wrapped with loess, which can exclude air and prevent air from mixing into gaps, thereby avoiding spontaneous combustion and polluting water sources. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] In this embodiment, a method for treating coal gangue is described in detail.

[0013] The present embodiment provides a method for treating coal gangue, comprising:

[0014] Step 1: Dig a long trench at the foot of the mountain;

[0015] Step 2: Spread loess at the bottom of the ditch, cover each piece of coal gangue with loess first, and then spread a layer of coal gangue on the loess;

[0016] Step 3: Continue to spread loess on the laid coal gangue layer, and repeat step 2 until the top layer of coal gangue is covered with loess.

[0017] In the specific implementation, just follow the above steps, you can dig a long ditch at the foot of the mountain or use the existing ditch; each piece of coal gangue is first wrapped with loess, and then piled underground in layers, with 10 meters long, 6 meters wide, and 3 meters deep as a unit layer. Each unit layer is wrapped in loess, which can exclude air and prevent air from mixing into the gaps, avoid spontaneous combustion, and avoid polluting water sources. After the coal gangue is buried in unit layers, green plants can be planted on the surface soil to protect water and soil.

[0018] The present invention and its embodiments are described above, and such description is not restrictive, and the actual protection scope is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for treating coal gangue, characterized in that: The following steps are involved: Step 1: Dig a long trench at the foot of the mountain; Step 2: Spread loess at the bottom of the ditch, cover each piece of coal gangue with loess first, and then spread a layer of coal gangue on the loess; Step 3: Continue to spread loess on the laid coal gangue layer, and repeat step 2 until the top layer of coal gangue is covered with loess.