SJ cone sand making machine

NegotiableUpdate on 05/25

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

【 Feed particle size 】: ≤ 60mm 【 Production capacity 】: 30-70t/h 【 Application field 】: Mainly suitable for various artificial sand making in mining stone production lines and metallurgical powder extraction in various metallurgical mining production lines. 【 Applicable materials 】: rocks, ores, slag, iron ore, pebbles, limestone, quartz, granite, basalt, diabase, etc.

Product Details

The SJ series cone sand making machine (also known as ultra-fine cone crusher/dry sand making machine) is a new concept of sand making equipment independently developed by Shuangjin Machinery based on the efficient crushing mechanism of cone crushers, using multi cylinder hydraulic technology to address the shortcomings of traditional vertical axis sand making machines in practical use, combined with market requirements for sand making equipment, by applying patented technology with independent intellectual property rights in product structure, materials, processes, and other aspects. Unlike the traditional vertical axis sand making machine that uses the principle of "stone grinding", this conical sand making machine uses the working principle of "stone milling" to achieve sand making, from "grinding" to "grinding", making it easier and more efficient to turn stone into sand. Mainly suitable for crushing pebbles below 60mm, shaping high-speed road stones, shaping basalt single particles, and dry sand production.

Outstanding advantages of SJ cone sand making machine

1. Adopting high-strength integral casting shell, with long service life and high reliability;

2. Wide range of applications. According to the configuration of the stone production line, by adjusting the discharge port, functions such as crushing, shaping, and sand making of the stone can be completed separately, making the machine versatile. And there is no need to add new equipment, and the functions of crushing, shaping, and sand making can be exchanged at any time according to needs;

3. Turning waste into treasure. The sand making effect (sand yield) is not affected by the incoming materials, and can be made from rough round stones, tailings, and waste stones;

4.10-80mm finished stone materials, whether single graded or continuously graded, can be used to produce sand;

5. Needle shaped sand with less than 5% (less than 5mm), 5-9mm and 9-19mm stone cubes all have polygonal surfaces (high bonding strength), which can meet the aggregate requirements of national key projects and highways;

6. Flexible configuration. In response to individual market demands, important parameters related to the machine (stroke, cavity shape, speed) can be adjusted;

7. Low usage and maintenance costs, with the main wear-resistant parts (rolling bowl wall, crushing wall) having a continuous working time of up to 1500-2000 hours, or even longer;

8. Low electricity consumption per unit output;

9. Allow high-dose flushing, which does not affect production and can still be improved;

10. The main systems and components are equipped with protective devices for safer and more reliable use.

Working principle of SJ cone sand making machine

The working components of a cone type sand making machine (also known as a ultra-fine cone machine/dry sand making machine) are two cones, one is a moving cone fixed on the spindle, and the other is a stationary cone that is part of the frame. The centerline of the main spindle cone intersects with the centerline of the fixed cone at a β angle (about 1 °). The lower end of the spindle is inserted into an eccentric bushing, which rotates around the bushing at an eccentric distance, causing the moving cone to perform eccentric swinging motion along the inner surface of the fixed cone. When it approaches the fixed cone, the stone material at that location is crushed by the squeezing, bending, and shearing effects of the moving cone. When it deviates from the fixed cone, the already broken stone material falls to the bottom of the cone due to gravity. As the eccentric bushing continues to rotate, the moving cone also rotates and swings continuously. Therefore, the crushing process and unloading process are carried out continuously along the inner surface of the fixed cone in sequence. (As shown in the figure)

When crushing stone materials, friction is generated on the surface of the moving cone due to the crushing force, which is opposite in direction to the direction of the cone's movement. Therefore, a torque is formed on the main axis, causing the moving cone to rotate in the opposite direction while also rotating around the axis. This self rotating motion can promote a more uniform particle size of the product and also make the wear on the surface of the moving cone uniform. Stone is crushed by compression, bending, and shearing between two conical surfaces, and can be freely discharged after crushing, resulting in high production capacity and low power consumption.

Technical parameters of SJ cone sand making machine

serial number	parameter name	SJ1000-ZS	SJ1300-ZS	unit
1	Maximum feeding size	≦60	≦60	mm
2	Adjustment range of discharge port	8-19	8-19	mm
3	Open circuit production throughput	100-120	115-140	t/h
4	Single sand production, sand yield (particle size ≤ 5mm)	30-50	50-70	t/h
5	Motor power	132-160	160-185	kw
6	Motor speed	980	980	r/min
7	Motor voltage	380	380	v
8	Total pressure of the safety cylinder	250	280	t
9	Equipment weight	17	26	t

Equipment weight

Note 1: The "H" type in the table is a high-end model.

Note 2: The "HD" model in the table is a customized high-end model.

Note 3:1. The equipment weight in the table does not include the weight of electric motors, electrical control equipment, lubrication stations, and hydraulic stations.

The throughput in the table is measured under the following conditions:

a) The moisture content of the material shall not exceed 4% and shall not contain clay;

b) The crushing chamber is uniformly distributed around a 360 ° circumference and fully filled with material;

c) The loose density of the feed is 1.6t/m3, and the compressive strength is 150Mpa.

Note 4: The above data is for reference only. The output may vary depending on the physical properties, feeding method, feeding particle size, and composition of the mining stone. We kindly request customers to choose to use it.

According to the GB/T 14684-2011 "Construction Sand" standard, our company's SJ series conical sand making machine sand products have obtained experimental data as shown in the table below.

mesh size	mesh count	Sieve residue (g)	Percentage of sieve residue (%)	Cumulative screening percentage (%)
4.75	4	0	0	0 A1
2.36	8	24	4.8	4.8 A2
1.18	14	89	17.8	22.6 A3
0.60	28	104	20.8	43.4 A4
0.30	48	125	25	68.4 A5
0.15	100	80	16	84.4 A6
0.075	200	44	8.8	93.2
Bottom screening	：	34
Cumulative	：	500
Fineness modulus	：	M=2.24

Report opinion: The fineness modulus of the sand is 2.3, belonging to the medium sand category, and the grading area is Zone 2. The grading area of the sand is excellent.