阅读说明：本技术 一种利用石英砂尾泥制备耐火硅泥的工艺 (Process for preparing refractory silicon mud by using quartz sand tailings ) 是由 曾伟 侯龙 于 2019-11-11 设计创作，主要内容包括：本发明公开了一种利用石英砂尾泥制备耐火硅泥的工艺,属于石英砂尾泥深加工技术领域,目的在于解决现有石英砂尾泥利用率低的问题。其包括以下步骤：(1)石英砂尾泥分散：将石英砂尾泥送入打散机进行分散处理；(2)石英砂尾泥干燥：将分散处理后的石英砂尾泥通过给料机送入输送机上输送至烘干机中干燥处理；(3)石英砂尾泥研磨：将干燥处理后的石英砂尾泥送入磨粉机中进行研磨,得到石英砂尾泥粉；(4)石英砂尾泥粉分选：将石英砂尾泥粉送入选粉机内进行分选,分选出粒度大小500-1000目石英砂尾泥粉；(5)石英砂尾泥粉称重包装：将分选得到的石英砂尾泥粉通过自动称重装包机称重包装。本发明适用于利用石英砂尾泥制备耐火硅泥。(The invention discloses a process for preparing refractory silica mud by using quartz sand tailings, belongs to the technical field of deep processing of quartz sand tailings, and aims to solve the problem of low utilization rate of the existing quartz sand tailings. Which comprises the following steps: (1) dispersing the quartz sand tail mud: sending the quartz sand tail mud into a scattering machine for scattering treatment; (2) drying the quartz sand tail mud: conveying the quartz sand tail mud subjected to dispersion treatment to a conveyor through a feeder, and conveying the quartz sand tail mud to a dryer for drying treatment; (3) grinding the quartz sand tail mud: feeding the dried quartz sand tail mud into a pulverizer for grinding to obtain quartz sand tail mud powder; (4) sorting quartz sand tail mud powder: conveying the quartz sand tail mud powder into a powder separator for separation, and separating the quartz sand tail mud powder with the granularity of 500 plus materials and the granularity of 1000 meshes; (5) weighing and packaging quartz sand tail mud powder: weighing and packaging the sorted quartz sand tail mud powder by an automatic weighing and bagging machine. The method is suitable for preparing the refractory silicon mud by using the quartz sand tail mud.)

1. A process for preparing refractory silicon mud by using quartz sand tailings is characterized by comprising the following steps:

(1) dispersing the quartz sand tail mud: sending the quartz sand tail mud into a scattering machine for scattering treatment;

(2) drying the quartz sand tail mud: conveying the quartz sand tailings subjected to the dispersion treatment by the scattering machine in the step (1) to a conveyor through a feeder, and conveying the quartz sand tailings to a dryer through the conveyor for drying treatment;

(3) grinding the quartz sand tail mud: sending the quartz sand tail mud dried by the dryer in the step (2) into a pulverizer for grinding to obtain quartz sand tail mud powder;

(4) sorting quartz sand tail mud powder: conveying the quartz sand tail mud powder in the step (3) into a powder separator for separation, and separating the quartz sand tail mud powder with the particle size of 500-1000 meshes;

(5) weighing and packaging quartz sand tail mud powder: weighing and packaging the quartz sand tail mud powder with the granularity of 500-.

2. The process for preparing refractory silicon mud from quartz sand tailings as claimed in claim 1, wherein the drying process in step (2) is a gradient curve drying process, wherein the temperature is increased from 0 ℃ to 100 ℃ at a constant speed when the temperature is 0-1H, 1-2H is kept at 1H, the temperature of 2-4H is increased from 100 ℃ to 400 ℃ at a constant speed, and the temperature is increased from 400 ℃ to 450 ℃ when the temperature is 4-6H, kept at 6-9H for 3H, and then naturally cooled.

3. The process for preparing refractory silica mud from quartz sand tailings as claimed in claim 1, wherein the packaging weight of the quartz sand tailings powder with the particle size of 500-1000 meshes in the step (5) is 10-25kg per bag.

Technical Field

The invention belongs to the technical field of deep processing of quartz sand tailings, and particularly relates to a process for preparing refractory silicon sludge by using quartz sand tailings.

Background

The quartz sand tailings are precious mineral resources, and according to statistics of relevant organizations, the discharge amount of the quartz sand tailings in China is about 1000 million tons every year, and the discharge of a large amount of the quartz sand tailings can cause serious environmental pollution, so that adverse effects such as occupation of cultivated land, silting of river channels and reservoirs and the like are caused. Therefore, the resource utilization of the quartz sand tailings has become a necessary trend. The quartz sand tail mud is a mixture of quartz tail sand and mud, the content of silicon dioxide in the quartz sand tail mud is up to more than 90%, and various physicochemical characteristic indexes of the quartz sand tail mud are matched with those of a refractory silicon mud raw material. However, the existing quartz sand tailings are not effectively utilized and are often abandoned. If the effective components in the quartz sand tail mud can be utilized, the quartz sand tail mud is processed and prepared into the refractory silica mud, so that the quartz sand tail mud is fully recycled, and meanwhile, the method has great economic benefit.

Disclosure of Invention

The invention aims to: the process for preparing the refractory silica mud by using the quartz sand tailings is provided, and the problem of low utilization rate of the existing quartz sand tailings is solved.

The technical scheme adopted by the invention is as follows:

a process for preparing refractory silicon mud by using quartz sand tailings comprises the following steps:

(1) dispersing the quartz sand tail mud: sending the quartz sand tail mud into a scattering machine for scattering treatment;

(2) drying the quartz sand tail mud: conveying the quartz sand tailings subjected to the dispersion treatment by the scattering machine in the step (1) to a conveyor through a feeder, and conveying the quartz sand tailings to a dryer through the conveyor for drying treatment;

(3) grinding the quartz sand tail mud: sending the quartz sand tail mud dried by the dryer in the step (2) into a pulverizer for grinding to obtain quartz sand tail mud powder;

(4) sorting quartz sand tail mud powder: conveying the quartz sand tail mud powder in the step (3) into a powder separator for separation, and separating the quartz sand tail mud powder with the particle size of 500-1000 meshes;

(5) weighing and packaging quartz sand tail mud powder: weighing and packaging the quartz sand tail mud powder with the granularity of 500-.

Further, the drying process in the step (2) is a gradient curve drying process, wherein the temperature is uniformly increased from 0 ℃ to 100 ℃ when the temperature is 0-1H, the 1-2H is kept warm for 1H, the temperature of 2-4H is uniformly increased from 100 ℃ to 400 ℃ when the temperature is 4-6H, the temperature is increased from 400 ℃ to 450 ℃ when the temperature is 6-9H, the temperature is kept for 3H, and then the drying process is naturally cooled.

Further, the specification of the packing weight of the quartz sand tailing powder with the granularity of 500-.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the quartz sand tail mud is prepared into 500-1000-mesh quartz sand tail mud powder through the process steps of quartz sand tail mud dispersion, quartz sand tail mud drying, quartz sand tail mud grinding, quartz sand tail mud powder sorting, quartz sand tail mud powder weighing and packaging and the like, and the quartz sand tail mud powder is weighed and packaged to be used as a refractory silicon mud raw material. The content of silicon dioxide in the quartz sand tailings reaches more than 90%, various physicochemical characteristic indexes of 500-mesh 1000-mesh quartz sand tailings powder are matched with those of the refractory silica sludge raw material, so that the process has high market value, the silicon dioxide in the quartz sand tailings is effectively utilized by the process, the quartz sand tailings are fully recycled, and the economic value of the quartz sand tailings is improved.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A process for preparing refractory silicon mud by using quartz sand tailings comprises the following steps:

(1) dispersing the quartz sand tail mud: sending the quartz sand tail mud into a scattering machine for scattering treatment;

(2) drying the quartz sand tail mud: conveying the quartz sand tailings subjected to the dispersion treatment by the scattering machine in the step (1) to a conveyor through a feeder, and conveying the quartz sand tailings to a dryer through the conveyor for drying treatment;

(3) grinding the quartz sand tail mud: sending the quartz sand tail mud dried by the dryer in the step (2) into a pulverizer for grinding to obtain quartz sand tail mud powder;

(4) sorting quartz sand tail mud powder: conveying the quartz sand tail mud powder in the step (3) into a powder separator for separation, and separating the quartz sand tail mud powder with the particle size of 500-1000 meshes;

(5) weighing and packaging quartz sand tail mud powder: weighing and packaging the quartz sand tail mud powder with the granularity of 500-.

Further, the drying process in the step (2) is a gradient curve drying process, wherein the temperature is uniformly increased from 0 ℃ to 100 ℃ when the temperature is 0-1H, the 1-2H is kept warm for 1H, the temperature of 2-4H is uniformly increased from 100 ℃ to 400 ℃ when the temperature is 4-6H, the temperature is increased from 400 ℃ to 450 ℃ when the temperature is 6-9H, the temperature is kept for 3H, and then the drying process is naturally cooled.

Further, the specification of the packing weight of the quartz sand tailing powder with the granularity of 500-.