阅读说明：本技术 一种砂石加工方法 (Sandstone processing method ) 是由 颜显琼 于 2020-12-29 设计创作，主要内容包括：本发明公开了一种砂石加工方法,将矿石进行粗碎后再次细碎,然后进行第一次筛分,对粒径大于制砂机进料粒度的产物再次粗碎、细碎,然后进行第二次筛分,混合第一次筛分和第二次筛分得到的符合制砂机进料粒度的产物,然后制得砂石,制得的砂石再次筛分,将不合粒度要求的砂石去除得到成品砂,在破碎机、振捣机及制砂机内均设有喷水装置,可防止砂石加工过程中粉尘泄漏到设备外,引起环境污染和造成人体危害,并可在加工过程中砂石进行清洗,从而无需对成品砂进行额外的清洗。本发明所制得的成品砂品质高,粒度较为均匀,且杂质少,整个过程相较传统砂石加工过程得到了简化,且不会出现粉尘泄漏危害。(The invention discloses a sand processing method, which comprises the steps of coarsely crushing ores, finely crushing the ores again, screening for the first time, coarsely crushing and finely crushing products with the particle size larger than the feeding particle size of a sand making machine again, screening for the second time, mixing the products which are obtained by screening for the first time and screening for the second time and meet the feeding particle size of the sand making machine, preparing sand, screening the prepared sand again, removing the sand which does not meet the particle size requirement to obtain finished sand, arranging water spraying devices in a crusher, a vibrating machine and the sand making machine, preventing dust from leaking out of equipment in the sand processing process to cause environmental pollution and human harm, and cleaning the sand in the processing process, so that extra cleaning of the finished sand is not needed. The finished sand prepared by the invention has high quality, uniform granularity and less impurities, the whole process is simplified compared with the traditional sand processing process, and the dust leakage hazard can not occur.)

1. A sand processing method is characterized by comprising the following steps:

s1 coarse crushing: crushing the ore by a crusher to complete coarse crushing to obtain a semi-finished sandstone A, wherein a spraying device is arranged at the top of the crusher, and water is sprayed into the crusher by the spraying device in the crushing process;

s2 fine crushing: putting the semi-finished sandstone into a vibrator for fine crushing, further finely crushing the semi-finished sandstone to obtain a semi-finished sandstone B, wherein the top of the vibrator is also provided with a spraying device, and water is sprayed into the vibrator in the fine crushing process;

s3 first sieving: screening the semi-finished sand B to obtain a product A1 and a product A2, wherein the particle size of the product A1 meets the feeding particle size of a sand making machine;

s4 coarse crushing again: putting the product A2 into the crusher again for coarse crushing to obtain a product B;

s5 fine crushing again: putting the product B into the vibrating machine again for fine crushing to obtain a product C;

s6 second sieving: screening the product C to obtain a product C1 and a product C2, wherein the particle size of the product C1 meets the feeding particle size of a sand making machine;

s7 sand making: combining the product A1 and the product C1, and then putting the mixture into a sand making machine to make sand to prepare sand stone, wherein a spraying device is arranged at the top of the sand making machine, and water is sprayed into the sand making machine through the spraying device in the sand making process;

s8 third screening: screening the sandstone prepared in the step S7, and removing the sandstone with the granularity not meeting the requirement to obtain finished sand;

s9 drying and packaging: and drying the finished sand, removing water in the finished sand, and packaging the finished sand.

2. A sand processing method according to claim 1, characterised in that: the crusher is at least one of a jaw crusher, a self-rotating crusher and a counterattack crusher.

3. A sand processing method according to claim 1, characterised in that: the screening equipment is at least one of a linear screen, a resonance screen, a circular vibration screen and a probability screen.

4. A sand processing method according to claim 3, characterised in that: the screening equipment is a multilayer screen, and screen holes become smaller gradually from top to bottom.

5. A sand processing method according to claim 1, characterised in that: the water spraying amount of the water spraying device is adjusted according to the feeding amount, so that excessive or insufficient water is prevented.

Technical Field

The invention relates to the technical field of sandstone processing, in particular to a sandstone processing method.

Background

The sandstone is the resource with the largest exploitation amount in China, and as natural sandstone resources are gradually exhausted, the machine-made sandstone becomes a main source of building aggregate. The machine-made sand stone is sand processed by a sand making machine and other accessory equipment, and the finished product is more regular, can be processed into sand with different rules and sizes according to different process requirements, and can better meet daily requirements.

The processing of ordinary machine-made sandstone mainly comprises coarse crushing, pre-screening, fine crushing and finished product screening, the shaping process is generally required to be added to the good-quality machine-made sandstone, and the production line mainly comprises a vibrating feeder, a jaw crusher, a sand making machine, a vibrating screen, a rubber belt conveyor and other equipment. In the production process, the stone is primarily crushed by a coarse crusher, then the coarse material of a production line is conveyed to a fine crusher by a rubber belt conveyor for further crushing, the crushed stone enters a vibrating screen to be screened out into two kinds of stones, the stones meeting the feeding granularity of a sand making machine enter the sand making machine to be made into sand, the other parts of the stones are returned to enter a fine slope, one part of the stones entering the sand making machine are made into sand, the sand is cleaned by a sand washer to be made into finished sand, and the other parts of the stones enter the sand making machine to be crushed again. In the current production process, the machine-made sandstone production process needs 3-4 times of crushing, the crushing process is long, the used equipment is more, the cost is high, and dust generated in the production process can cause harm to human bodies and pollute the environment.

Disclosure of Invention

In view of the above disadvantages, the present invention provides a method for processing sandstone, which simplifies the crushing process, improves the quality of finished sandstone, and reduces the dust hazard.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a method of sand processing comprising the steps of:

s1 coarse crushing: crushing the ore by a crusher to complete coarse crushing to obtain a semi-finished sandstone A, wherein a spraying device is arranged at the top of the crusher, and water is sprayed into the crusher by the spraying device in the crushing process;

s2 fine crushing: putting the semi-finished sandstone into a vibrator for fine crushing, further finely crushing the semi-finished sandstone to obtain a semi-finished sandstone B, wherein the top of the vibrator is also provided with a spraying device, and water is sprayed into the vibrator in the fine crushing process;

s3 first sieving: screening the semi-finished sand B to obtain a product A1 and a product A2, wherein the particle size of the product A1 meets the feeding particle size of a sand making machine;

s4 coarse crushing again: putting the product A2 into the crusher again for coarse crushing to obtain a product B;

s5 fine crushing again: putting the product B into the vibrating machine again for fine crushing to obtain a product C;

s6 second sieving: screening the product C to obtain a product C1 and a product C2, wherein the particle size of the product C1 meets the feeding particle size of a sand making machine;

s7 sand making: combining the product A1 and the product C1, and then putting the mixture into a sand making machine to make sand to prepare sand stone, wherein a spraying device is arranged at the top of the sand making machine, and water is sprayed into the sand making machine through the spraying device in the sand making process;

s8 third screening: screening the sandstone prepared in the step S7, and removing the sandstone with the granularity not meeting the requirement to obtain finished sand;

s9 drying and packaging: and drying the finished sand, removing water in the finished sand, and packaging the finished sand.

Preferably, the crusher is at least one of a jaw crusher, a gyratory crusher, and a counterattack crusher.

Preferably, the screening equipment is at least one of a linear screen, a resonance screen, a circular vibration screen and a probability screen.

Preferably, the screening equipment is a multilayer screen, and the screen holes become smaller gradually from top to bottom.

Preferably, the water spraying amount of the water spraying device is adjusted according to the feeding amount, so that excessive or insufficient water is prevented.

The invention has the beneficial effects that: the method comprises the steps of coarsely crushing ores, finely crushing the ores again, screening for the first time, coarsely crushing and finely crushing a product A2 with the particle size larger than the feed particle size of a sand making machine again, screening for the second time, mixing the product A1 with a product C1, preparing gravels, screening the prepared gravels again, removing the gravels with the particle size not meeting the requirement to obtain finished sand, arranging water spraying devices in a crusher, a vibrating machine and a sand making machine, preventing dust from leaking out of equipment in the processing process of the gravels to cause environmental pollution and human harm, and cleaning the gravels in the processing process, so that the finished sand does not need to be additionally cleaned. The finished sand prepared by the invention has high quality, uniform granularity and less impurities, the whole process is simplified compared with the traditional sand processing process, and the dust leakage hazard can not occur.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given in conjunction with the embodiments.

Example 1:

a method of sand processing comprising the steps of:

s1 coarse crushing: crushing the ore by a crusher to complete coarse crushing to obtain a semi-finished sandstone A, wherein a spraying device is arranged at the top of the crusher, and water is sprayed into the crusher by the spraying device in the crushing process;

s2 fine crushing: putting the semi-finished sandstone into a vibrator for fine crushing, further finely crushing the semi-finished sandstone to obtain a semi-finished sandstone B, wherein the top of the vibrator is also provided with a spraying device, and water is sprayed into the vibrator in the fine crushing process;

s3 first sieving: screening the semi-finished sand B to obtain a product A1 and a product A2, wherein the particle size of the product A1 meets the feeding particle size of a sand making machine;

s4 coarse crushing again: putting the product A2 into the crusher again for coarse crushing to obtain a product B;

s5 fine crushing again: putting the product B into the vibrating machine again for fine crushing to obtain a product C;

s6 second sieving: screening the product C to obtain a product C1 and a product C2, wherein the particle size of the product C1 meets the feeding particle size of a sand making machine;

s7 sand making: combining the product A1 and the product C1, and then putting the mixture into a sand making machine to make sand to prepare sand stone, wherein a spraying device is arranged at the top of the sand making machine, and water is sprayed into the sand making machine through the spraying device in the sand making process;

s8 third screening: screening the sandstone prepared in the step S7, and removing the sandstone with the granularity not meeting the requirement to obtain finished sand;

s9 drying and packaging: and drying the finished sand, removing water in the finished sand, and packaging the finished sand.

In this embodiment, the crusher is at least one of a jaw crusher, a gyratory crusher, and a counterattack crusher.

In this embodiment, the screening device is at least one of a linear screen, a resonant screen, a circular vibrating screen and a probability screen.

Furthermore, the screening equipment is a multilayer screen, and screen holes become smaller gradually from top to bottom.

Furthermore, the water spraying amount of the water spraying device is adjusted according to the feeding amount, so that excessive or insufficient water is prevented.

The water spraying devices are arranged in the crusher, the vibrating machine and the sand making machine, so that dust can be prevented from leaking out of equipment in the processing process of the sand stone, environmental pollution and human harm are prevented, the sand stone can be cleaned in the processing process, and the finished sand does not need to be additionally cleaned. The finished sand prepared by the invention has high quality, uniform granularity and less impurities, the whole process is simplified compared with the traditional sand processing process, and the dust leakage hazard can not occur.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention.