Supply of coal preparation equipment high molecular spiral chute coal preparation machine spiral separato

Supply of coal preparation equipment high molecular spiral chute coal preparation machine spiral separator
Spiral separator / spiral separator for coal preparation / FRP spiral separator
Introduction to spiral sorter:
The spiral separator is applicable to the separation of iron ore, ilmenite, chromite, pyrite, zircon, rutile, monazite, phosphite, tungsten, tin, tantalum, niobium and other metallic, rare metal and non-metallic mineral bodies with specific gravity difference of 0
3--0
02mm fine materials
The equipment has the advantages of stable separation process, easy control, large allowable variation range of feed concentration, high enrichment ratio, high recovery rate, small floor area, low water consumption, simple structure, no power, large processing capacity, simple installation, convenient operation, small investment and quick effect

Technical parameters of spiral chute:
1、 Overview
The glass fiber reinforced plastic spiral separator is a new high-efficiency gravity separation equipment at the domestic advanced level
Iron, tin, tungsten, tantalum, niobium, gold ore, coal mine, monazite, rutile, zircon and other metallic and non-metallic minerals with sufficient specific gravity difference used for separating fine particles with a particle size of 0
3-0
02mm have been identified by relevant scientific research, design, universities, factories and mines organized by the Ministry of metallurgy
It is considered that the equipment has excellent performance and advanced separation indicators, and is determined to be used in batch production
The equipment has been widely used in existing and black metal mines, and has won the scientific and technological research achievement award of the Ministry of metallurgy

The company adopts the latest design drawings and complete sets of technology to organize production, strictly inspect quality and ensure the technical requirements of products
The company manufactures a series of FRP spiral chutes of various specifications for use in industrial and black metal mines, coal chemical preparation plants, sulfur preparation plants, scientific research, design, and university laboratories
2、 Spiral separator structure
The glass fiber reinforced plastic spiral separator is composed of six parts: ore feeding homogenizer, ore feeding trough, spiral trough, product intercepting trough, product gathering bucket and trough support (including cross or tripod)
The spiral groove connected by the spiral pieces is the main component
The spiral plates are made of glass fiber reinforced plastic (GRP) and connected together by bolts
The sorting surface of the spiral groove is provided with a prefabricated low wear layer
It has the advantages of light, strong and durable consumer goods
The upper part of the spiral groove is provided with a multi tube ore feeding homogenizer, which divides ore evenly and has simple control
The ore separator is freely placed on the cross (or tripod) of the supporting table
The evenly distributed ore slurry is slowly fed to the spiral trough surface through the ore feeding trough installed at the head end of the spiral trough for separation
The tail end of the spiral groove is installed in the valve block type new product interception groove to divide the sorted new products into three (or four) new products according to the grade along the radial direction
Change the cut-off width of each new product by adjusting the position of the valve block
The new product gathering bucket is a concentric annular cylinder, which collects and exports the intercepted multi head ore flows respectively
The cross section of the spiral chute and the slope change of the curve are particularly suitable for the separation of fine particle materials
Spiral chute has the advantages of simple structure, no moving parts, light weight, low noise, convenient configuration and installation, etc

3、 Installation of screw separator
The installation procedures and requirements of spiral sorter are as follows:
1
First, check the quality of the glass fiber reinforced plastic spiral piece (especially the quality of the working surface)
Assembly can be carried out only when the size and shape meet the requirements

2
The connecting bolt holes on the spiral piece are usually pre drilled by the manufacturer
If it is not processed by the manufacturer, it is necessary to drill holes according to the same sample to ensure good interchangeability

3
Use bolts to connect five turns of screw plates into a group of spiral grooves, and place them horizontally
The smooth transition of the inner surface of the connection of two adjacent flanges shall prevail
During connection, pay special attention to that the surface of the lower plate shall not be lower than the corresponding surface of the lower plate
Along the radial direction
(groove width direction) shall be aligned from the outer edge, and the outer edge of the lower plate is not allowed to be inward
The purpose of this installation is to prevent ore flow splashing
If there is a joint at the joint, it shall be smoothed with putty

4
Screw the connected four head (or two or three head) spiral grooves in a group of five pieces together and publish them into the required shape

5
Install the four (or three) columns on the four (or three or two) spiral grooves in turn, fix the spiral grooves with the columns with bolts, and then install the cross (tripod), so that the screws at each head are evenly distributed along the circumference, and finally screw all the bolts
After installation
Spiral piece shall keep natural shape without obvious deformation

6
Install the ore feeding trough and new product intercepting trough at the head and tail ends of the spiral trough respectively, and ensure that the connection is tight and watertight
If there is any gap, it shall be sealed with paint
Ensure smooth transition of groove surface

7
The ore feeding homogenizer and the new product gathering bucket are connected with the tank support and placed freely on the support
Pay attention to the correct position according to the drawing during installation
Each row pipe of the Distributor shall be aligned with the corresponding ore feeding tank

8
Generally, the foundation of the spiral sorter does not need to be fixed, but it should be placed on four (three) plane foundations at the same level
After installation, check whether the vertical axis of the spiral groove is plumb, and add shims under the column to adjust the plumb
The screw sorter shall be provided with an operating platform at an appropriate height, and the screw sorter pillar shall be properly connected with the platform

9
When it is widely used in industry, it should be configured in groups, with multi tube ore separator for quantitative ore feeding, and spiral chutes should be configured in continuous rows to save floor space

4、 Use of screw separator
1
The main process parameters affecting the spiral trough concentrator are the volume of ore body and the solubility of ore body
The stability of ore feeding volume supervision is more important than that of ore feeding concentration
Practice has proved that as long as the volume of ore body is constant, the fluctuation of ore concentration within a certain working range has little effect on the separation results

2
The separation process of the spiral separator is stable and easy to control
The volume of ore body is 1
2-1
8 cubic meters per hour for ll-900 and 2
5-3
5 cubic meters per hour for ll-1200 The size of the volume can change the distribution characteristics of minerals along the width of the spiral groove
It should be controlled and stable in the daytime, and the allowable fluctuation range should be less than ± 5%, and constant pressure ore feeding is generally adopted

3
The allowable variation range of ore feeding concentration is large, generally 30%~60%, which shall be determined by test
Generally, the feeding concentration of roughing can be 30%~50%, and that of cleaning can be 40%~60%
When the separation effect is similar, it is better to select high concentration to improve the treatment capacity of the equipment

4
In order to ensure the normal operation of the spiral separator, the slag separation treatment shall be strictly carried out before the slurry is fed into the spiral chute to prevent large particles and sundries from accumulating on the spiral chute surface and damaging the separation

5
The yield and grade of each product can be changed by adjusting the position of the valve block on the product intercepting tank
The cut-off width of each product shall be determined by experiment
Once the valve block position is determined, it shall not be changed at will

6
After feeding ore to the spiral separator, attention shall also be paid to whether the ore flow is full of the whole spiral groove surface
If the ore flow is found to be outward, it must be corrected (such as water flushing)

7
During operation, it is necessary to frequently check whether there is accumulation on the spiral groove, and timely clean up the accumulation if any
Each shift shall flush the tank surface with water once to remove the sundries accumulated on the tank surface and ensure the normal flow of ore flow