What are the methods for removing rust from sand washing machines? 1. Compressed air rust removal. Compress the air and install appropriate rust removal devices, reciprocating or rotating, to meet unique needs for rust removal. If the angle grinding wheel, wire brush, pneumatic needle beam, pneumatic rust knocker is rusted, the rust removal and paint roughening treatment efficiency is much higher than manual rust removal, up to 1 ~ 2m2 / hour, but the surface roughness of the oxide scale cannot be removed Smaller, high-quality, high-probability surface treatments can be achieved with jets. It can be used in any position and is especially widely used during repairs. 2. High-pressure water rust removal. Use high-pressure water spray equipment. The characteristics of this rust removal method are that there is no dust pollution, no harm, and the efficiency is improved. However, after the return of steel plate rust to the rust zone, the wet rust removal performance of the paint and paint has a significant impact on the paint.  

Standard Operating Procedures for Vibrating Screens Inspection before running the vibrating screen: including equipment sanitation, complete, fastened and intact connecting bolts of each part, checking whether the exciter is intact, and checking each spring. Whether the vibrating screen is damaged, missing, broken, etc., check whether the triangular belt is tensioned, whether the screen box is broken, whether the sieve plate is damaged, check whether the sieve plate is blocked by debris, and the screen surface should be flat without damage or looseness. Check whether the material chute is smooth, check whether the beam is open and welded, check whether the protective device is reliable, check whether the control box, communication and lighting are in good condition, whether the grounding protection is reliable, and whether the control button is flexible and reliable. When starting: After turning on the vibrating screen, stand beside the control box to monitor the equipment starting and stop immediately if abnormalities are found. After starting normally, inspect the nozzles of each vibrating screen again for blockage or falling off, often observe the temperature and sound of the motor, often observe the sound of the exciter, and observe the vibration of the screen to see if the amplitude of the four corners is consistent and whether there is coal leakage. Loose or falling off, often observe the effect of dehydration and mediation. Check whether the material in and out of the sieve is normal and whether it is blocked. Shutdown: After the material on the sieve is discharged, the machine can be shut down. When parking, observe whether the sieve collides with other equipment when it passes the resonance point. When the following conditions are found, it must be stopped immediately. When there are many sundries in the sieve area and the feeding is not smooth, the sieve mesh is broken in a large area, the chute under the sieve is seriously blocked, the sieve box swings seriously, and other abnormal conditions. After the problem is eliminated, the vibrating screen can be restarted to run.  

Vibrating screening equipment can be divided into mine vibrating screen, light fine vibrating screen, experimental vibrating screen machine according to weight Mining vibrating screens can be divided into heavy-duty screens, self-centering vibrating screens, elliptical vibrating screens, dewatering screens, circular vibrating screens, vibrating screens, banana screens, linear vibrating screens, etc. Light-duty fine vibrating screens can be divided into: rotary vibrating screens, linear screens, in-line screens, ultrasonic vibrating screens, filter screens, etc., please refer to the vibrating screen series Experimental vibrating sieve: slapping sieve, top impact vibrating sieve, standard inspection sieve, electric vibrating sieve, etc., please refer to the experimental equipment According to the material running track of the vibrating screen, it can be divided into: According to the linear motion track: linear vibrating screen (the material moves forward in a straight line on the screen surface) According to the circular motion trajectory: the structure and advantages of circular vibrating screen (the material moves circularly on the screen surface) According to the reciprocating motion trajectory: fine screening machine (the material reciprocates forward on the screen surface) Vibrating screens are mainly divided into linear vibrating screens, circular vibrating screens, and high-frequency vibrating screens. Vibrating screens can be divided into single-shaft vibrating screens and double-shaft vibrating screens according to the type of vibrator. The single axis vibrating screen uses a single unbalanced weight to vibrate the screen box, the screen surface is inclined, and the motion track of the screen box is circular or elliptical. The double-axis vibrating screen is excited by double unbalanced weights that rotate in different directions synchronously. The screen surface is horizontal or gently inclined, and the motion track of the screen box is a straight line. Vibrating screens include inertial vibrating screens, eccentric vibrating screens, self-centering vibrating screens and electromagnetic vibrating screens. Linear vibrating screen the vibrating screen uses the vibration of the vibrating motor as the vibration source, so that the material is thrown up on the screen and moves forward in a straight line at the same time. The material enters the feeding port of the screening machine evenly from the feeder and produces several specifications through the multi-layer screen. The oversize and undersize are discharged from their respective outlets. Linear vibrating screen (linear screen) has the advantages of stability and reliability, less consumption, low noise, long life, stable vibration shape, and high screening efficiency. It is a new type of screening equipment, used in mines, coal, smelting, building materials, Refractory materials, light industry, chemical industry, and other industries. Circular vibrating screen the circular vibrating screen (circular vibrating screen) is a multi-layer, new type of vibrating screen that does circular motion. The circular vibrating screen adopts a cylindrical eccentric shaft exciter and an eccentric block to adjust the amplitude. The material sieve has a long flow line and many screening specifications. It has reliable structure, strong excitation force, high screening efficiency, low vibration noise, durable and easy maintenance Convenience and other features, circular vibrating screens are used in product classification in mining, building materials, transportation, energy, chemical and other industries. According to material products and user requirements, high manganese steel woven screen, punched screen and rubber screen can be used. There are single-layer and double-layer screens. All kinds of screens can meet different requirements of screening effect. This series of circular vibrating sieves is seat mounted. The adjustment of the inclination angle of the screen surface can be realized by changing the position height of the spring support.

Sand washing machines are also called sand washing machines. It is used for removing impurities (such as dust) from sand products. Because it uses more water washing methods, it becomes a sand washing machine. Artificial machine-made sand (made of broken stone) is cleaned. There are many types on the market, but most of them have single functions, and only a few can wash rocks, dry sand, river sand, and mixed washing. Equipment uses It is used for washing materials in gravel field, mine, building material, transportation, chemical industry, water conservancy and hydropower, concrete mixing station and other industries. working principle 1. Powerful functions, one machine with multiple functions! It can wash all kinds of rocks and sand, and the effect is good! 2. Simple structure and convenient maintenance. 3. Large processing capacity and low power consumption. 4. The consumption of wearing parts is less, and the cost of use is low. In the past, sand washing machines were transformed from coal washing machines. There are great limitations! The hybrid multi-functional sand washing machine equipment on the market will replace the traditional and backward sand washing method. Will lead the market in the future! Equipment advantage 1. The structure of the machine is simple, and the impeller drive bearing device is isolated from water and water-receiving materials, which avoids the damage of the bearing due to water, sand, and pollutants. Like happen. 2. Compared with the traditional spiral sand washing machine, the sand washing machine (sand washing machine) has obvious advantages as follows when used for sand washing in sand and gravel fields: a. The loss of medium-fine sand and stone powder is exceedingly small, and the gradation and fineness modulus of the washed construction sand meet the standards of my country’s “Construction Sand” and “Construction Pebbles and Crushed Stones”. b. The machine has almost no wearing parts except the screen. c. long service life, no maintenance for a long time. 3. The machine has almost no wearing parts except the screen. 4. Large processing capacity and low power consumption. 5. Long service life and easy maintenance. 6. Save water resources. 7. No pollution, high cleanliness  

During the use of the sand washing machine, production is often affected by the failure of the motor. The main failure phenomena are: 1. Troubleshooting of stator and rotor cores The stator and rotor are made of silicon steel sheets insulated from each other, which is the magnetic circuit part of the motor. The damage and deformation of the stator and rotor cores are mainly caused by the following aspects. ① Excessive wear or poor assembly of the bearings will cause the stator and rotor to rub against each other, damage the surface of the iron core, and then cause a short circuit between the silicon steel sheets, increase the iron loss of the motor, and cause the temperature rise of the motor to be too high. At this time, tools such as fine files should be used to remove burrs, remove short-circuits of silicon steel sheets, clean them, apply insulating varnish, and heat and dry. ② Excessive force was used when removing the old winding, which caused the stealing groove to be skewed and flared outward. At this time, tools such as needle-nose pliers and wooden hammers should be used to trim the teeth to reset the bad teeth, and add hard insulating materials such as green shell paper and bakelite boards between the silicon steel sheets that are difficult to reset. ③ The surface of the iron core is corroded due to damp and other reasons. At this time, it needs to be polished with sandpaper, and then coated with insulating paint after cleaning. ④The grounding around the group generates high heat and burns the iron core or teeth. The deposits can be removed with tools such as chisels or scrapers, and then coated with insulating paint and dried. Placer gold beneficiation equipment ⑤ If the connection between the iron core and the machine base is loose, the original positioning screws can be tightened. If the positioning screw fails, re-drill and tap the positioning hole on the machine base, and tighten the positioning screw. 2. Bearing troubleshooting The rotating shaft is supported and rotated by bearings. It is a part with a heavy load and a part that is easy to wear. ①Troubleshooting Check during operation; when the rolling bearing is short of oil, you will hear the sound of “gulu gulu”; if you hear the discontinuous “stalk” sound, it may be that the bearing steel ring is broken. When sand and other sundries are mixed in the bearing or the bearing parts are slightly worn, slight noise will be produced. Check after disassembly; First check whether the rolling body of the bearing and the inner and outer steel rings are damaged, rusted, etc., then pinch the inner ring of the bearing with your hands, and make the bearing level, and push the outer rigid ring with the other hand. If the bearing is good, the outer steel ring should rotate Stable, no vibration and obvious stagnation during rotation, and no backlash of the outer steel ring after stopping. Otherwise, it means that the bearing can no longer be used. Clamp the outer ring with your left hand, pinch the inner steel ring with your right hand, and push it hard in all directions. If you feel loose when pushing, it means serious wear and tear. the ②Troubleshooting The rust spots on the outer surface of the bearing can be wiped off with No. 00 sandpaper, and then cleaned in gasoline; or when the bearing has cracks, the inner and outer rings are broken, or the bearing is excessively worn, the bearing should be replaced with a new one. When replacing a new bearing, use the same bearing as the original model. 3. Shaft troubleshooting ①The shaft is bent; if the bending is not large, it can be repaired by polishing the journal and slip ring; if the bending exceeds 0.2mm, the shaft can be placed under the press and corrected by applying pressure to the bent part, and the corrected shaft The surface is cut and polished with a lathe; if the bending is too large, a new shaft needs to be replaced. ② Journal wear; when the journal wear is not large, a layer of chrome can be plated on the journal, and then ground to the required size; If the journal wears too much, turn 2-3mm on the journal, and then turn a sleeve, put it on the journal while it is hot, and then turn it to the required size.

During the use of the crusher, it is common for the jamming phenomenon to occur, which has caused time and economic losses to the customer. So how to effectively prevent the jamming of the crusher? 1. The lubricating oil is not up to the standard. Too much lubricating oil, too little lubricating oil, dirt and deterioration will affect the lubricating effect of the equipment, thereby reducing the speed of the equipment, resulting in a reduction in the crushing effect of the equipment. The phenomenon of clogging. 2. The wear of the wearing parts will cause the crushing size of the material to be too large, and the phenomenon of unsmooth feeding will occur during the screening process, which will easily cause the blockage of the crusher. 3. The feeding speed is too fast, and the crusher is too late for the crusher. If the feeding is uneven and the speed is too fast during the crushing process, the material in the crushing chamber will not be discharged in time, which will cause serious blockage of the equipment. 4. The discharge port is not smooth. The crusher is generally installed relatively high. There is a conveyor below it, and some materials will fall below the conveyor. If the material below the conveyor accumulates a lot, it will seriously affect the performance of the crusher. Normal discharge. 5. The screen under the crusher is rusted, blocked, etc., resulting in slow discharge, which in turn causes the blockage of the crusher. 6. The voltage is unstable. When the equipment is broken, the voltage is unstable, and the crusher cannot reach the normal speed, which will easily cause equipment blockage 7. The material is too large, and the crushed material is too large, which will cause serious wear and tear on the various parts of the equipment, and blockage will occur after a long time. Once the crusher is blocked, it will affect the future use and affect the work efficiency. Therefore, In normal use, we must pay attention to the method of use to ensure that the device can be used normally. In summary, when the above situation occurs, stop feeding immediately, cut off the power supply, find out the cause of the blockage, and solve it.

The working principle of the spiral sand washing machine: According to the type, the spiral sand washing machine can be divided into two types: single spiral sand washing machine and double spiral sand washing machine. The spiral sand washing machine is used for cleaning, grading, impurity removal and cleaning in road, hydropower, construction, and other industries. For fine-grained and other operations, the material will fall vertically from the upper part of the spiral sand washing machine into the high-speed rotating impeller. Under the action of high-speed centrifugal force, the spiral sand washing machine and the impeller make the surrounding materials collide. When the materials collide with each other, the materials will enter the impeller, and then the materials will form a vortex between the shells. These eddies will be broken due to multiple collisions and frictions and will be discharged from the lower part of the spiral sand washer. Working principle of wheel sand washing machine: The wheel type sand washing machine is a kind of sand washing equipment used in conjunction with the sand making machine. The wheel sand washing machine can wash the impurities in the sand and stones, thus improving the quality of the sand. At present, the wheel sand washing machine is used for material cleaning in construction sites, sand and gravel factories, hydropower stations and other places. *Spiral sand washing machine *Wheel sand washing machine

How to choose the right crusher? Before choosing the crusher equipment, the customer should first adopt the corresponding force application method according to the material properties of the particles, the crushed product, and the particle size requirements to determine the crushing force method, and then determine the crushing equipment model. The specific method for selection is as follows. 1. Hard materials with large or medium particle size are crushed and impact crushed, such as jaw crushers, toothed roller crushers, etc. 2. Materials with strong abrasiveness are crushed, and the surface of the crushing tool is smooth. 3. Materials with weak abrasiveness are crushed by impact, impact crushing and grinding, and the crushing tools have sharp teeth. 4. Hard materials with small particle size are crushed, impact crushed, and ground. The surface of the crushing tool has no teeth and is smooth, such as a roller crusher. 5. Tough materials are sheared or quickly struck, such as a hammer crusher. 6. Powdery or muddy materials should be crushed, impact crushed or crushed, such as a ball mill. 7. multi-component materials are selectively crushed under the action of impact, and multiple force fields can also be used in combination. Factors such as the moisture content of the material, the degree of dissociation of the ore, and the climate where the ore is located will all affect the selection of the ore crusher.