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河卵石破碎制砂生產線技術方案（全流程版）

一、產線概述

適應物料：河卵石（莫氏硬度7+）、花崗巖等中高硬度石料
核心工段：粗碎→中碎→細碎→制砂→篩分→洗砂（可選）
標準產能：50-500噸/小時（模塊化設計，支持定制）
成品規格：
- 0-3/5mm（精品機制砂，級配可調）
- 5-10mm、10-20mm（骨料，用于混凝土/瀝青）

二、設備配置方案

工段	設備選型	關鍵參數	作用說明
初級破碎	PE顎式破碎機（PE600×900/PE750×1060）	進料≤630mm，處理量80-320t/h	大塊河卵石初破，降低后續負荷
二級中碎	HPT多缸液壓圓錐破（HPT200/300）	進料≤241mm，產量100-500t/h	層壓破碎，減少針片狀含量
制砂整形	VSI6X立軸沖擊破（VSI6X8528/1150）	進料≤55mm，成砂率≥60%	立方體整形+好的制砂
篩分系統	3YK/4YK圓振動篩（多層篩網）	分級精度±0.5mm	實現砂、石精準分離
洗砂除粉	XSD輪斗洗砂機+細砂回收機	洗凈度≥95%	控制含粉量（可選干法生產）
智能控制	PLC更好控制系統	實時監測產量、電流、溫度	故障預警+遠程調控

三、工藝流程

粗碎階段：
- 河卵石經給料機均勻送入顎破，破碎至≤200mm
- （針對高含泥量原料可選配預篩分）
中細碎階段：
- 圓錐破實現閉路循環（未達標石料返回二次破碎）
制砂篩分：
- VSI6X制砂機破碎+整形→圓振篩分級→合格砂進入成品倉
環保處理：
- 干法工藝：脈沖除塵+霧炮抑塵（粉塵≤10mg/m³）
- 濕法工藝：洗砂機+沉淀池（水資源循環利用）

四、技術優勢

? 高成砂率

VSI6X制砂機“石打石”+“石打鐵”雙模式，成砂率比傳統設備提高20%

? 耐磨設計

圓錐破采用錳鋼襯板（壽命≥8000h），制砂機拋料頭可360°調換使用

? 靈活擴展

支持模塊化增減設備（如增配移動破碎站、砂石同出系統）

? 低能耗

噸砂電耗≤1.8kWh（相比棒磨機節電50%+）

五、案例參考（信陽200t/h項目）

原料：河卵石+花崗巖混合料（抗壓強度≥150MPa）
實際運行：
- 成品砂細度模數2.7-3.0，含泥量≤1.5%
- 應用于商混站，替代天然砂成本降低30%

注：可提供EPC交鑰匙服務，含場地規劃、設備安裝調試及人員培訓。

Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

LIMING brings a large number of high-qualification talents together. Bai Yinghui, general research and development engineer, is a well-known expert in crushing and grinding area who won the youth medal of technology of the state council and receives special government allowance. LIMING owns an experienced service team, offering the customer free design and professional skill training and live guide for installation and debugging. The company's service networks have spread all over the country. Established client files, and mix the traditional door-to-door service with online service together, complementary the advantages. LIMING has won high recognition from clients.

The company mainly manufactures mobile crushers, stationary crushers, sand-making machines, grinding mills and complete plants that are widely used in mining, construction, highway, bridge, coal, chemical, metallurgy, refractory matter, etc. Product quality is life, and scientific innovation is motive power. LIMING got ISO international quality system certification, European Union CE certification and Russian GOST certification. The company has strong research and development strength and innovation.

LIMING machinery research institute was founded in 2005 which is the most powerful comprehensive technological research institute in the domestic mining machinery industry and provides top scientific research platform for professional personnel. Up to now, LIMING has won 10 national patents, 24 national utility model patents and 3 provincial science and technology achievement awards. The company products remain the international leading level by strengthening international exchanges and cooperation all the time, and has won a wide range of international market, such as Russian, Azerbaijan, Kazakhstan, Turkey, Kuwait, South Africa, Egypt, Vietnam, Malaysia, India, Australia, Korea, Canada and European Union,etc. Through more than 30 years' hard work, LIMING's staff built supremacy of credibility, excellent quality, service "LIMING" brand, and has made outstanding contributions to the development of mechanical manufacturing industry for China and the whole world.