JB/T 3651-1999 This standard is a revision of JB 3651-84 "Centrifugal Concentrator". During the revision, only editorial changes were made according to relevant regulations, and the technical content has not changed. This standard specifies the product classification, technical requirements, test methods, inspection rules, signs, labels, operating instructions, packaging, transportation and storage of centrifugal concentrators. This standard applies to centrifugal concentrators. The machine is mainly used for the separation of fine-grained ferrous and non-ferrous metal ores. JB/T 3651-1999 Centrifugal Concentrator JB/T3651-1999 Standard download decompression password: www.bzxz.net

ICS73.120
Machinery Industry Standard of the People's Republic of China
JB/T3651-1999
Centrifugal separator
Issued on 1999-06-28
National Bureau of Machinery Industry
Implemented on 2000-01-01
JB/T3651-1999
This standard is a revision of JB3651-84 "Centrifugal separator". During the revision, the original standard was edited, and the main technical content remained unchanged
This standard replaces JB3651-84 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Mining Machinery. The responsible drafting unit of this standard: Shenyang Mineral Processing Machinery Research Institute. The main drafters of this standard: Zhai Dengchuan, Wang Fuzhong, Fu Jinbi, Li Jun, Huang Jialin. 1 Scope
Machinery Industry Standard of the People's Republic of China
Centrifugal Separator
Centrifugalseparator
JB/T3651-1999
Replaces JB365184
This standard specifies the product classification, technical requirements, test methods, inspection rules, signs, labels, instruction manuals, packaging, transportation and storage of centrifugal separators.
This standard applies to centrifugal separators. The machine is mainly used for the separation of fine-grained ferrous and non-ferrous metal minerals. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191—1990
GB/T9981982
GB/T6388——1986
GB/T3768—1996
GB/T 9969.1—1988bzxz.net
GB/T 133061991
JB/T16041998
3 Product classification
3.1 Type
Packaging Storage and Transportation Pictorial Mark
Basic test methods for low-voltage electrical appliances
Transportation packaging Shipping and receiving marks
Acoustic sound pressure method for determining the sound power level of noise source Simple method of using envelope measurement surface above the reflecting surface General provisions of industrial product manuals
Method for compiling mining machinery product models
3.1.1 The centrifugal concentrator is horizontal, that is, the drum is placed horizontally, the large end of the double-cone drum is the free end, and the small end of the single-cone drum is the free end. The working condition is periodic intermittent operation. 3.1.2 The drum of the centrifugal concentrator is single-cone and double-cone 3.2 Model
The model representation method of the centrifugal concentrator shall comply with the provisions of JB/T1604. L
Total length of drum, dm
Diameter of small end of drum, dm
Type of drum: D for single cone type, no mark for double cone type Centrifugal concentrator
Gravity concentrator
Approved by State Machinery Industry Bureau on 1999-06-28, implemented on 2000-01-01
3.3 Marking example
JB/T3651—1999
The double cone centrifugal concentrator with total length of drum 900mm and small end diameter of drum 1600mm is marked as: LX-169 Centrifugal concentrator
3.4 ​​Basic parameters and dimensions
The basic parameters and dimensions of centrifugal concentrator shall comply with the requirements of Table 1. Table 1
LX-169
Turning cone angle
Note: * Centrifugal concentrator for roughing
4 Technical requirements
or 330
Ore dressing cycle
Processing capacity
(measured in dry ore
)
Motor
Dimensions
40002868
Centrifugal concentrators shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.1
Working conditions
4.2.1 The feed particle size is less than 74μm, accounting for more than 80%. The feed concentration shall comply with the provisions of Table 2.
The feed quantity shall comply with the provisions of Table 2 and be strictly controlled. 4.2.3
LX-169
Feed concentration
12%18%
15%~25%
4.2.4Before the slurry enters the centrifugal concentrator, it must be stirred evenly and the slag must be strictly removed.4.2.5The water quality for flushing the concentrate should be clean, with a pH value of 7 and a water pressure of about 0.6-0.8MPa4.2.6The water pressure of the washing water is about 0.10-0.15MPa4.3Rotary drum
4.3.1After assembly, the radial runout tolerance of the rotary drum shall comply with the requirements of Table 3. 2
Feeding capacity
LX-169
JB/T3651-1999
Radial runout
4.3.2The roughness of the inner surface of the drum shall be R,80um4.3.3The ridges of the inner surface of the double-conical drum at the interface shall not be greater than 0.5mm. 4.3.4The allowable static unbalanced moment shall comply with the provisions of Table 3. Allowable static unbalanced moment
≤015
≤064
4.4The swing of the feeder bucket shall be flexible, and it must be ensured that all the slurry is fed into the drum during feeding. When the ore is cut off, all the slurry flows into the return pipe.
4.5 The ore bucket of the ore separator should swing flexibly, and the fine ore and tailings must be clearly separated. 4.6 Machine cover
4.6.1 The slurry should be able to be discharged from the ore discharge cover of the machine cover, and the slurry should not be accumulated in the protective cover. 4.6.2 The connection between the upper and lower covers should not leak. 4.7 The time control device should be made into a mechanical type (controller) or a program control type assembled with electronic components, and the control should be accurate and reliable. 4.8 Requirements for the controller
It should have good insulation. Under a voltage of 500V, the insulation resistance between the conductive part and the base should not be less than 5M2. 4.8.2 The brush has good contact with the relay.
The power-on time of the relay should be adjustable.
It should operate reliably, and the power-on time should be accurately adjusted according to the requirements of the drawing. 4.8.4
Each weld should not have defects such as burn-through, cracks, slag inclusions and incomplete penetration. All lubrication parts should have smooth oil passages and the seals should not leak oil. 4.10
After assembly, the following requirements should be met:
All moving parts must run smoothly and flexibly: The temperature rise of rolling bearings shall not exceed 40℃, and the maximum temperature shall not exceed 80℃: b)
The noise shall not exceed 85dB (A);
d) The speed error of the drum shall not exceed ±3% of the nominal value 4.12 All unprocessed metal parts shall be painted with primer and topcoat, and the inner and outer surfaces of the drum shall be painted with iron red primer. The painting shall be uniform, without defects such as shedding, peeling, flow marks and cracks.
4.13 Complete supply scope of centrifugal concentrator: a) Complete set of mechanical parts;
b) Motor:
c) Accessories specified in the contract. The number of pilots required should be specified in the contract. If not, they will not be supplied. 5 Test methods
5.1 For the requirements of 4.3.1, use a fixed position indicator to check. 3
JB/T3651-1999
5.2 For the requirements of 4.3.4, check them on a general static balance test bench. 5.3 For the requirements of 4.4 and 4.5, check them by swinging the feeder hopper of the ore feeder and the separator hopper of the ore separator by hand. 5.4 For the requirements of 4.6, after the product is assembled, clean water should be injected into the rotating drum for inspection. 5.5 For the requirements of 4.8.1, check them according to the provisions of GB/T998, and the accuracy level of the instrument used shall not be lower than level 1.5. 5.6 For the requirements of 4.8.4, use a stopwatch for measurement. 5.7 For the requirements of 4.3.3, 4.8.2, 4.8.3, 4.9 and 4.10, an appearance inspection shall be carried out. 5.8 For the requirements of 4.11, an inspection shall be carried out during the idling test. The noise of the whole machine shall be measured according to GB/T3768, and the speed of the drum shall be measured with a tachometer when the machine is running normally.
Inspection rules
Inspection classification
Centrifugal concentrators are divided into factory inspection and type inspection. 6.2
Factory inspection
6.2.1 Centrifugal concentrators shall be inspected and qualified by the quality inspection department of the manufacturer before they can be shipped. When leaving the factory, documents proving the quality of the products shall be attached.
6.2.2 Factory inspection of the following items:
a) The factory inspection of centrifugal concentrators shall comply with the provisions of 4.3~4.6, 4.8~4.12: b) An idling test of no less than 2h shall be carried out at the manufacturer. 6.3 Type inspection
6.3.1 Centrifugal concentrators should be subject to type inspection in any of the following situations: a) when new products or old products are transferred to the factory for production appraisal; b) when the product structure, materials, and processes have been greatly changed after normal production; c) when the product is resumed after a long period of suspension; d) when the results of the factory inspection are greatly different from the last inspection; e
When the national quality inspection agency proposes a type inspection requirement. 6.3.2 Type inspection items should meet all requirements of this standard. 6.3.3 Type inspection should be conducted on one unit selected from the products that have passed the factory inspection. If the inspection fails, double sampling should be conducted. 7 Signs, labels and instruction manuals
Each centrifugal concentrator should have a product label fixed in a conspicuous position. Its type and size should comply with the provisions of GB/T13306 and indicate the following contents:
a) Manufacturer's name and trademark;
b) Product name and model:
c) Main technical parameters:
Drum speed, vmin;
Processing capacity, th;
Motor power, kW;
Machine weight, t;
d) Factory number;
Date of manufacture.
JB/T3651-1999
Product instructions should be prepared for centrifugal concentrators, and the contents should comply with the provisions of GB/T9969.17.2
7.3 The packaging marks of centrifugal concentrators should include shipping packaging receipt and delivery marks, packaging storage and transportation pictorial marks, and should comply with the provisions of GB/T6388 and GB191.
Packaging, transportation and storage
Centrifugal concentrators can be packed and wrapped in parts, and the parts should be fixed firmly in the box, and the closed box should be ventilated and rainproof. The following technical documents should be attached to the centrifugal concentrator: product general drawing, installation drawing;
Product instructions;
Quality certificate or product certificate:
Packing list.
There should be obvious text markings on the outer wall of the closed box, and it should comply with the provisions of 7.3, including: a)
Name of the receiving station and the receiving unit;
Name of the shipping station and the shipping unit;
Contract number and product name and model:
Gross weight, net weight, box number and overall dimensions: d
Center of gravity, lifting line, storage and transportation diagram signs
8.4 The overall wrapped part should be marked with a sign in a conspicuous position, which should have obvious text markings, and its content is the same as 8.3. 5 The packaging and shipment of centrifugal concentrators should comply with the requirements of water and land transportation. 8.5
Centrifugal concentrators should be purchased and stored in warehouses or under sheds that can protect against direct sunlight and rain and snow. 8.7 The exposed processed surface of the machine should be coated with anti-rust grease and wrapped with protective materials such as polyvinyl chloride plastic film or paraffin wrapping paper. The flushing nozzle and feeding nozzle should be kept naturally drooping.
Mechanical Industry Standard
Centrifugal Concentrator
JB/T3651-1999
Published and issued by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×1230
Printing Sheet 1/2
Word Count 12000
First Edition in August 1999
First Printing in August 1999
Print Quantity 1-500
Price 500 yuan
99-082
66690
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.