In the iteration process of mining crushing equipment, hydraulic cone crushers have become the core choice in the medium and fine crushing field due to their high efficiency and intelligence. As a brand focusing on crushing technology research and development, SHILONG's hydraulic cone crushers inherit the advantages of general hydraulic models and form unique competitiveness different from traditional cone crushers and hydraulic models of other brands through structural innovation and working condition adaptation design. This article will systematically analyze the differential characteristics of SHILONG hydraulic cone crushers from four dimensions: working principle optimization, core structural innovation, performance index breakthrough, and application scenario focus, providing technical references for mining enterprises to accurately select equipment.
1. Working Principle: Dynamic Pressure Feedback and Dual Hydraulic Circuit Cooperative Control
SHILONG hydraulic cone crusher inherits the core principle of "laminated crushing", but achieves dual breakthroughs in power transmission and crushing adjustment mechanism, differing from traditional models and ordinary hydraulic models:
Difference from traditional cone crushers (spring/Symons): Traditional models rely on the passive response of spring mechanisms, with delayed iron passing treatment (≥2 seconds) and low discharge port adjustment accuracy (error ±5mm). SHILONG adopts a dual hydraulic cylinder drive system, which real-time monitors the crushing cavity load through independent pressure sensors. When encountering foreign objects such as iron blocks, the hydraulic circuit completes the pressure relief-cone retreat action within 0.3 seconds, and automatically resets after the foreign objects are discharged. The response speed is increased by more than 60% compared with traditional models. At the same time, the electro-hydraulic servo valve realizes precise adjustment of the discharge port (error ≤1mm), solving the pain point of traditional models relying on experience for cavity adjustment.
Difference from ordinary hydraulic cone crushers: Most hydraulic models only realize single-circuit pressure control, while SHILONG innovatively adopts a dual-circuit design of dynamic pressure feedback flow compensation. When processing hard rocks such as granite and basalt, the main circuit maintains stable crushing pressure (18-22MPa), and the auxiliary circuit real-time compensates the flow according to the change of material particle size, keeping the swing frequency of the moving cone in the optimal range of 180-220 times per minute. The crushing efficiency is increased by 12%-18% compared with ordinary hydraulic models.
2. Core Structure: Modular Design and Wear-Resistant Component Upgrade
SHILONG integrates heavy-duty manufacturing technology and lightweight design concept in key components, forming significant structural differential advantages. The specific comparison is as follows:
Component Type | Traditional Cone Crusher (Spring/Symons) | Ordinary Hydraulic Cone Crusher | SHILONG Hydraulic Cone Crusher |
Adjustment & Protection Mechanism | Spring group + manual bolt, adjustment after shutdown | Single hydraulic cylinder + mechanical limit | Dual hydraulic cylinders + electronic limit, supporting remote intelligent cavity adjustment |
Crushing Cavity Design | Fixed cavity type, single material adaptation | 3-4 cavity types optional, switching takes 4-6 hours | 5 customized cavity types (S1-S5), modular liner enables 1.5-hour quick switching |
Main Shaft & Eccentric Sleeve | Fixed main shaft, rotating eccentric sleeve, high overall replacement cost | Integrated main shaft and moving cone, alloy material | 42CrMo quenched and tempered main shaft + tungsten carbide coated eccentric sleeve, wear rate reduced by 50% |
Lubrication System | Single-circuit thin oil lubrication, low cooling efficiency | Dual-circuit lubrication, natural cooling | Three-circuit forced lubrication + water cooling system, oil temperature controlled at 35-45℃ |
3. Performance: Dual Breakthroughs in Hard Rock Crushing and Cost Control
Based on structural innovation, SHILONG hydraulic cone crusher shows significant performance advantages in hard rock crushing working conditions. The comparison of key indicators is as follows:
1. Higher hard rock processing efficiency: For granite with compressive strength of 250-350MPa, the hourly output of SHILONG 1300 type hydraulic cone crusher can reach 380-450t/h, which is 68%-69% higher than that of the same specification traditional model (220-280t/h) and 19%-18% higher than that of ordinary hydraulic model (320-380t/h). The secret lies in the "deep cavity + large stroke" combined design, the depth of the crushing cavity is increased by 20%, the stroke is increased to 18-22mm, and the energy density of single material crushing is increased by 30%.
2. Stronger operation stability: Through the three-circuit lubrication system and temperature monitoring module, the oil temperature fluctuation of SHILONG model during continuous operation is controlled within ±2℃, the annual shutdown time can be compressed to 25-35 hours, and the effective operation rate of the equipment reaches 88%-90%, which is more than 25% higher than that of traditional models (70%-75%) and 3%-5% higher than that of ordinary hydraulic models (85%). An application case in a copper mine shows that its continuous trouble-free operation time exceeds 1200 hours, setting a record for similar equipment.
3. Lower comprehensive cost: In terms of wear part life, SHILONG uses high chromium alloy + surface hardening treatment liners, whose service life can reach 800-1000 hours, which is 80%-100% longer than that of traditional models (400-500 hours) and 33%-43% longer than that of ordinary hydraulic models (600-700 hours). Taking a granite aggregate production line with an annual output of 2 million tons as an example, it can save about 1.2-1.5 million yuan in liner replacement costs every year, and the total life cycle cost of the equipment is reduced by 20%-25%.
4. Wider intelligent adaptability: Equipped with the independently developed "Mine Cloud" intelligent control system, it supports adaptive adjustment of crushing parameters, remote fault diagnosis and production capacity prediction functions. In a smart mine project, through docking with the mine management system, the unmanned linkage of crushing-screening-transportation process is realized, the labor cost is reduced by 40%, and the production efficiency is increased by 15%.
