Spiral classification machine washing

Publish: 2021-05-03 16:20:39

1. Spiral classifier is one of the equipment of mineral processing. Spiral classifier is a kind of equipment for mechanical classification based on the principle that the specific gravity of solid particles is different, so the speed of precipitation in liquid is different. It can filter the grinding powder in the mill, and then screw the coarse material into the feed port of the mill by using the spiral blade, and discharge the filtered fine material from the overflow pipe. Spiral classifier is called classifier for short. There are mainly four kinds of graders: high weir single screw and double screw, submerged single screw and double screw. The classifier is mainly composed of transmission device, spiral body, tank body, lifting mechanism, lower support (bearing bush) and discharge valve. Spiral classifier is widely used in concentrators and ball mills to form a closed-circuit cycle and separate ore sand, or in gravity Concentrators to classify ore sand and fine mud, and in metal beneficiation process to classify the size of pulp, as well as desliming and dewatering in ore washing operation< The spiral classifier mainly includes high weir type single screw and double screw, low weir type single screw and double screw, submerged type single screw and double screw. The low weir type is rarely used, mainly high weir type, submerged type and XL spiral classifier< The spiral classifier is widely used in ore dressing plants to form a closed-circuit cycle with ball mill to separate ore sand, or in gravity dressing plants to classify ore sand and fine mud, and in metal dressing processes to classify ore pulp particle size, as well as desliming and dewatering in ore washing operations. The machine has the characteristics of simple structure, reliable operation and convenient operation the base of the machine is made of channel steel, and the machine body is welded with steel plate. The head of screw shaft and shaft head are made of pig iron sleeve, which is wear-resistant and rable. The lifting device can be divided into electric and manual.

bus route: b3-b road → K20 branch → 809 Road, the whole journey is about 70.0km

1. Walk about 350m from longhui hub to longhui hub station

2. Take b3-b Road, pass 4 stops, reach east bus station

3. Walk about 80m, reach east bus station

4. Take K20 branch, pass 2 stops, reach Dongguan station (or take K20 Road)

5 Walk about 250 meters to Dongguan station

6, take bus 809, pass 26 stops to lvtan Ercun station

7, walk about 380 meters to 365 convenient service center

3. Cloud computing resources: customers can choose standard configuration of virtual cloud computer resources, and can also customize the virtual cloud computer resource configuration. The official account of China Telecom Guizhou customer service can be used for charging, charging, traffic, points, bills and detailed lists. Br > Customer Service 101 will answer for you.

Hengcheng mineral processing gives you a detailed explanation of the working principle and operation theory of the spiral classifier:

1. The working principle of the spiral classifier is to feed the pulp into the U-shaped groove from the middle feed port on the side of the groove

2. The U-shaped groove makes the pulp flip back and forth, which will make the lighter particles fall at the bottom, while the heavier ones are located on the upper side, so as to separate the materials of different sizes and weights
The spiral classifier of mineral processing equipment is different from some other equipment for transporting grit, which can be divided into spiral classifier, rake classifier and floating trough classifier. The outstanding one here should belong to the spiral classifier. The main reason is that it has the characteristics of simple structure, convenient operation, large skew point of view and so on. It is easy to connect with the grinding machine for gravity flow, so it is widely used
Second, the operation theory of spiral classifier of mineral processing equipment

other classifiers are distinguished by the size and weight of solid materials, so the settling velocity in liquid is different. Fine ore particles float in water and overflow, while coarse ore particles sink at the bottom of the tank. Spiral classifier is a kind of classification equipment for mechanical classification. Because it can be connected with the mill, it can grade and filter the raw materials from the mill, and then grade the coarse and fine materials. The base of this type of machine is made of steel groove, and the body is made of steel plate by welding, so the machine is very firm. The various parts of the spiral shaft use pig iron sleeve, so it is very wear-resistant. And its performance compared with other classifiers are also greatly improved, so it is widely used in proction

5. Hello: you said that the anti sand water is actually backwater. I wonder if your concentrator has a flotation system? If there is a flotation system, the first thing to consider is whether the nature of flotation reagent will cause backwater viscosity. If it is viscous, it will affect the pulp viscosity and flow rate inside the mill (pulp will change when it reaches the highest point with the operation of the ball mill) and the discharge speed, and even lead to swelling. If the pulp inside the ball mill cannot be removed in time for a long time, the internal concentration will increase, The fineness will definitely decrease
in addition, attention should be paid to the acidity and alkalinity of backwater
generally speaking, backwater has little effect on fineness, but has some effect on other flotation indexes

6. Spiral classifier is a kind of special and more complex spiral conveyor than ordinary spiral conveyor. It was first invented by American akbn in 1920s
the spiral classifier is mainly used for grading, washing and dewatering of sand or minerals, and its structure and principle are similar to that of screw conveyor< One, about the spiral classifier:
spiral classifier is one of the mineral processing equipment, spiral classifier by virtue of the proportion of solid particles is different, so the speed of precipitation in the liquid is different, a kind of mechanical classification equipment. It can filter the grinding powder in the mill, and then screw the coarse material into the feed port of the mill by using the spiral blade, and discharge the filtered fine material from the overflow pipe. Spiral classifier is called classifier for short. There are mainly four kinds of graders: high weir single screw and double screw, submerged single screw and double screw< Second, the working principle of the spiral classifier:
the spiral classifier is based on the principle of different solid particle size and specific gravity, so the settling speed in the liquid is different. The fine ore particles float in the water and overflow, and the coarse ore particles sink at the bottom of the tank. It is a kind of classification equipment for mechanical classification by pushing the screw upward to discharge. It can filter the powder from the mill, and then screw the coarse material into the feed port of the mill by using the screw, and discharge the filtered fine material from the overflow pipe. The base of the machine is made of channel steel and the body is made of steel plate by welding. The head of screw shaft and shaft head are made of pig iron sleeve, which is wear-resistant and rable. The lifting device can be divided into electric and manual< Third, about screw conveyor:
screw conveyor is divided into axial screw conveyor and shaftless screw conveyor in the form of conveying, and U-type screw conveyor and tubular screw conveyor in the appearance. The shaftless screw conveyor is suitable for non sticky dry powder materials and small particle materials (such as cement, fly ash, lime, grain, etc.), while the shaftless screw conveyor is suitable for the materials that are sticky and easy to wind For example: sludge, biomass, garbage, etc.) the working principle of the screw conveyor is that the rotating screw blade pushes the material to the screw conveyor for conveying. The force that makes the material not rotate together with the screw conveyor blade is the weight of the material itself and the friction resistance of the screw conveyor shell to the material. For the spiral blades welded on the rotating shaft of the screw conveyor, the surface types of the blades include solid surface type, belt surface type and blade surface type according to the different materials transported. The screw shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to provide axial reaction force to the screw with the material. When the captain is long, the middle suspension bearing should be added< 4. Working principle of screw conveyor:
when the screw shaft rotates, e to the gravity of the material and the friction between the material and the tank wall, the material can only move forward along the bottom of the conveyor under the push of the blade, which is like the translational movement of the nut along the rotating screw. The movement of the material in the middle bearing depends on the thrust of the material moving forward behind. Therefore, the transportation of materials in the conveyor is a sliding movement. In order to make the screw shaft in a more favorable tension state, the driving device and the discharge port are generally placed at the same end of the conveyor, and the feed port is placed near the tail of the other end as far as possible. The rotating screw blade pushes the material to transport, and the force that makes the material not rotate with the screw conveyor blade is the weight of the material itself and the friction resistance of the screw conveyor shell to the material. According to the different conveying materials, blade surface types include solid surface type, belt surface type and blade surface type. The screw shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to provide axial reaction force to the screw with the material. When the captain is long, the middle suspension bearing should be added.

Spiral classifier mainly includes high weir single screw and double screw, low weir single screw and double screw, submerged single screw and double screw. Low weir is rarely used, mainly high weir, submerged and XL spiral classifier
spiral classifier is widely used in ore dressing plant and ball mill to form closed-circuit circulation and separate ore sand, or in gravity dressing plant to classify ore sand and fine mud, and in metal dressing process to classify ore pulp particle size, as well as desliming and dewatering in ore washing operation. The machine has the characteristics of simple structure, reliable operation and convenient operation
the base of the machine is made of channel steel, and the body is made of steel plate by welding. The head of screw shaft and shaft head are made of pig iron sleeve, which is wear-resistant and rable. The lifting device can be divided into electric and manual. 1. It is used to separate the super standard stone powder in the dry process of machine-made sand. It is very convenient to control the content of machine-made sand powder and meet the requirements of users
2. It is suitable for large and medium dry sand proction lines
3, 0.00-0.75mm stone powder content can be adjusted between 2% - 15%
4. The quality of stone powder is easy to control, and the fineness adjustment is convenient, flexible and reliable
5. The maintenance rate of tile lining is very low
6. Frequency conversion control technology makes the operation more concise. Model FC-12 2fc-12 fc-15 2fc-15 FC-20 2fc-20 specification φ one thousand and two hundred φ one thousand and two hundred φ one thousand and five hundred φ one thousand and five hundred φ two thousand φ 2000 screw diameter (mm) 1200 1500 2000 screw speed (R / min) 2.5,4,63.8,62.5,4,62.5,4,63.6,5.53.6,5.5 flume length (mm) 8400 8100 10500 10500 12900 width (mm) 1372 2600 1664 3200 2200 inclination angle 14 °~ ten ° 30″ 14 °~ eighteen ° 30 ″ overflow weir height 1100 1100 1300 1800 1800 spiral lifting height 14001100 1800 2100 2100 calculated proction capacity (T / 24h) overflow 120 210 185 370 320 640 return sand amount 1165 ~ 1630 1770 ~ 2800 1140 ~ 2740 2280 ~ 5480 3890 ~ 5940 7780 ~ 11880 overall dimension (mm) (length * width * height) 10371 * 1848 * 3845 10371 * 2787 * 3912 12670 * 1810 * 48 88 12670 * 3368 * 4888 15398 * 2524 * 5345 15760 * 4595 * 5635 total amount (T) 9.519.61 15.32 27.45 29.06 50 37.27 y90l-41, 1.5kw y100l-4, 2.2kw y100l-4, 2.2kw y100l-4, 2.2kw y100l2-4, 3kw y100l2-4, 3w2 transmission y160m-6, 7.5kw y160m2-6, 7.5kw y160m-6, 7.5kw y160m-6, 7.5kw y160m-6, 11kw y200l2-6, The screw speed of 22KW 2 sets is 6 / min when the order is not specified, and 4 / min when the order is not specified, Screw speed is supplied according to 3.6/min, model and specification, screw speed (RPM) proction capacity (ton / day), hydraulic gradient (degree), drive motor
(kw) sand return overflow fg-500 8-12.5 135-210 32 14-18.5 y90l-6
1.1 fg-750 6-10 340-570 65 14-18.5 y132s-6
3 fg-1000 5-8 675-1080 110 14-18.5 y132m-6
5.5 fg-1200 5-8 1170-1870 115 14-18.5 Y160M-6
5.5 FG-1500 4-6 1830-2740 235 14-18.5 Y160M-6
7.5 FG-2000 3-5 3240-5400 400 14-18.5 Y160M-6
11 FG-2400 3.6 4650-7450 580 14-18.5 Y160M-6
15 FG-3000 3.2 11625 890 14-18.5 Y160M-6
22 2FG-1200 5.0-8.0 2340-3740 310 14-18.5 Y132M-6
5.5*2 2FG-1500 4.0-6.0 3660-5480 470 14-18.5 y160m-6
7.5 * 2 2fg-2000 3.0-5.5 7780-11880 800 14-18.5 y160m-6
11 * 2 2fg-2400 3.6 13600 1160 14-18.5 y160m-6
15 * 2 2fg-3000 2.0-3.2 14600-23400 1785 14-18.5 y160m-6
22 * 2 spiral graders mainly include high weir single screw and double screw, submerged single screw and double screw
spiral classifier is widely used in ore dressing plant and ball mill to form closed-circuit circulation and separate ore sand, or in gravity dressing plant to classify ore sand and fine mud, and in metal dressing process to classify ore pulp particle size, as well as desliming and dewatering in ore washing operation. The classifier has the advantages of simple structure and reliable operation. There are four kinds of classifiers: high weir single screw and double screw, submerged single screw and double screw

8. Working principle of spiral classifier: the spiral classifier is based on the principle that different solid particle sizes and specific gravity result in different settling velocity in liquid, fine ore particles float in water and overflow, and coarse ore particles sink at the bottom of the tank. It is a kind of classification equipment for mechanical classification by pushing the screw upward to discharge. It can filter the powder from the mill, and then screw the coarse material into the feed port of the mill by using the screw, and discharge the filtered fine material from the overflow pipe. The base of the machine is made of channel steel and the body is made of steel plate by welding. The head of screw shaft and shaft head are made of pig iron sleeve, which is wear-resistant and rable. The lifting device can be divided into electric and manual< Features of spiral classifier: 1. It is used to separate super standard stone powder in dry process of machine-made sand. It can control the content of machine-made sand powder very conveniently and meet the requirements of users< It is suitable for large and medium-sized dry sand proction lines< The content of 0.00-0.75mm stone powder is adjustable from 2% to 15%< The quality of stone powder is easy to control, and the fineness adjustment is convenient, flexible and reliable 5. The maintenance rate of tile lining is very low 6. Frequency conversion control technology makes the operation more concise< The spiral classifier is one of the equipment for mineral processing. It is a kind of equipment for mechanical classification based on the principle that the specific gravity of solid particles is different, so the sedimentation speed in liquid is different. It can filter the grinding powder in the mill, and then screw the coarse material into the feed port of the mill by using the spiral blade, and discharge the filtered fine material from the overflow pipe. Spiral classifier is called classifier for short. There are mainly four kinds of graders: high weir single screw and double screw, submerged single screw and double screw. The classifier is mainly composed of transmission device, spiral body, tank body, lifting mechanism, lower support (bearing bush) and discharge valve. Spiral classifier is widely used in concentrators and ball mills to form a closed-circuit cycle and separate ore sand, or in gravity Concentrators to classify ore sand and fine mud, and in metal beneficiation process to classify the size of pulp, as well as desliming and dewatering in ore washing operation.

9. According to the position of the screw in the groove and the height of the pulp surface, it can be divided into three types: low weir type, high weir type and submerged type< The overflow weir is lower than the rotation axis of the spiral. Due to the small settling area, the classifier is only used for washing the sand ore with little mud and dewatering the coarse particles in actual proction, and is rarely used in grinding cycle A high weir overflow weir is higher than the rotation axis of the spiral, but lower than the upper edge of the spiral at the overflow end. The area of the settling area of the classifier is lower than that of the weir type, and its weir height can be adjusted within a certain range, that is, the area of the settling area can be adjusted within a certain range, so as to adjust the grading particle size. It is a common equipment in grinding cycle The submerged type one has 4-5 spiral blades at the end of overflow weir, all of which are submerged in pulp. The settling area of the classifier is large, the classification pool is deep, and the screw stirring has little effect on the pulp surface. Therefore, the grading surface is stable, and the overflow is large and fine. It is often used as classification equipment for fine grinding or two-stage grinding in concentrator proction.

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Spiral classification machine washing

Hengcheng mineral processing gives you a detailed explanation of the working principle and operation theory of the spiral classifier:

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