(1) new machine should be in accordance with the requirements of the concrete mixer manual, various systems and components one by one inspection and commissioning. Empty running, check the mixing tube or mixing blade rotation direction, the operation of the device, braking, confirm the normal before operating.
(2) fixed concrete mixer should be installed on a solid pedestal. When the long-term use should be embedded anchor bolts; such as short-term use, the laying of sleepers and find a flat and stable base.
(3) For mobile concrete mixer should be installed in a flat, hard to aerodromes with sawn timber or bracket frame firmly, and keep the horizontal plane tire from the force. If you use more than three months, you should remove the tire the safekeeping axle ends should be prepared to clean rust.
(4) located on some of the need to dig the hopper pit mixer, the Hang Hau should be boosted around lay a solid foundation to prevent surface water flowing into the pit. Feeding track frame at the bottom of the bearing surface shall be compaction or paving, the back of the frame should also be supporting wood, prevent the deformation of the track work.
(5) after the start of the concrete mixer, the mixing tube up to speed on the material, add water after feeding; add new material must first be carried out only after all the original concrete mixer unloading. Not half-way down or full-load starting mixers, except reversal discharging.
(6) in the concrete mixer in use, do not sand to fall into the part of the operation of the machine, damage to moving parts so as not to get stuck. On bucket elevator bucket under can not someone through or staying, so as not to brake failure accident. Will be in the bucket to repair or clean-up work, forced to shut down and braced hopper with the insurance chain.
(7) operations, such as the fault can not continue to operate, you should immediately turn off the power, concrete mixing tube is cleaned, and then repair.
(8) Operating respond to the mixer to thoroughly cleanse the operator if necessary, into the barrel cleaning, you must cut off the power and let someone outside the guardianship, or shed the fuse and lock the gates box, before you go into.
(9) on the hopper crank, pin fixed to avoid people into the simple clean-up, body off the handle so that the bucket elevator, occurrence of extrusion accident.
Job, the hopper should be landing to the hopper pit, rising For the application chain anchored.
Pack cement silo is transported to the construction site after the Modular Production molding assembled with bolts connected you can use the new cement silo. Type of bulk cement silo completed by machining away from the traditional on-site production, rough and limited conditions defects caused by manual welding, gas cutting, a beautiful shape, time is short, easy to install, can focus on transport, use after the transition of the advantages of recycling, concrete mixing plant widely used.Pack cement silo (sheet cement silo) including dust removal system, broken arch, level device and ladder equipment:1. Dust removal system: the top of the cement silo is equipped with electric dust removal device, which can effectively absorb the positions of suspended particles in the body, reduce the pollution of the surrounding environment.2, the broken arch device: cement silo cone section is equipped with inflatable arch breaking device, the use of small solenoid valve in the gas control box control the release of compressed air to the broken arch of cement and powder to avoid the accumulation of powder , causing blockage.3, level device: split cement Hoppers device perceived positions in the storage of materials in the body height.
Sand is the most important sand making equipment, the process of the first use, safe.Sand in security matters and routine maintenance
1 regular downtime to open observation door to observe the internal wear of the crusher, the center feed tube, cone cap, impeller, indecent Road liner, circular shield, wear block wear after wear should be timely replacement or repair, replacement The wear blocks should be replaced at the same time, wear the same block weight. To open observation door to observe the inner workings of non-crusher working process, to avoid danger. Found that the impeller body abrasion timely replacement looking for manufacturers to repair.
Pay special attention to, without the manufacturer's consent is strictly prohibited without permission homemade impeller, or peril.
Sand Mobilube adding proper amount of grease with grease of super or 3 # lithium grease, every 400 hours, 2,000 hours of work to open the bearing spindle assembly cleaning, general work 7200 hours, replaced with new bearings.
The upper end of the spindle assembly bearing is swimming side, the lower end of the bearing assembly fixed end pulled the pulley by hand should be flexible rotation.
3, the drive the triangle belt tensioner force size should be properly adjusted to ensure that the triangle belt force uniform, both sides of the triangle tape should be grouped optional dual motor drive, then each group of its length is as consistent as possible. Should be adjusted so that the difference between the two motor current does not exceed 15A.
4, the sand making machine is running, the device is a high-speed device, should pay special attention to safety in production. Should be kept away from the device, For machine repair should be carried out after the shutdown.
1, due to the strong vibration of screen box, reducing the material clogging the sieve, sieve has a high screening efficiency and productivity.
2, vibrating screen (circular vibrating screen) structure is simple, easy removable screen surface.
3, the the screening per ton of material consumption of electricity.
The jaw crusher is the most frequent repair project is to replace the thrust plate. For the connecting rod is the overall crusher to remove the thrust plate must tighten the baffle bolt, cut off the the dry lubricating oil pipe, thrust plate hanging on the crane lifting hook or other lifting equipment, and then only loose open horizontal rod at one end of the spring, the movable jaw pulled direction of fixed jaw, remove the thrust plate. If you want to remove the thrust plate, should be the connecting rod and the front thrust plate and moving jaw opened, remove the thrust plate.
Remove the thrust plate, cut a thin lubricating oil pipes and cooling pipes, bracket support live below the link, and then remove the connecting rod cap in order to hang the rod. Crushing machine spindle should be used together with the pulley and flywheel removed. Motor (together with the belt) along the rails as far as possible closer to the crusher, remove the V-belt, and then with a crane to lift the shaft. The demolition of the movable jaw must cut off the dry oil lubricating oil pipe, remove the rod, remove the bearing cap, and then the movable jaw with a crane or other lifting equipment pulled out.
Strike, the machine will "strike". Due to improper operation or equipment quality, but off, or environmental factors, in the course of their work, the crusher will appear one way or another failure. Now the crusher models appearing on the market more, but the failures are common. Below on the possible failure of the crusher in the course of their work we do an analysis, how to listen to the experts of Red Star for your doubts.
Fault 1: main bearing temperature is too high.
Doubts: It may be the lack of grease, then you need to add the right amount of grease; grease pollution, then replace the bearings need to be cleaned grease; bearing damage, then you need to replace the bearings.
Fault 2: Discharge size is too large.
Doubts: It may be broken tooth wear excessive, then you need to replace the broken tooth or welding; side tooth wear or fall off, to be replaced.
Fault 3: crusher vibrations increase.
Doubts: It may be bearing damage, to be replaced; gear coupling is damaged, replace;
Fault 4: reduced processing capacity or lack of motivation.
Doubts: fluid coupling leaked, then supplement the quantitative No. 22 turbine oil or hydraulic transmission oil, if the coupling is broken needs to be replaced; uneven feed, then adjust the feed.
Fault 5: You can not be reversed.
Doubts: sensor is not installed correctly or damage, adjust or replace the sensor; sensor leads or wiring loose, turn on the lead or tighten the line.
Failure 6: Sensor protection system failure.
FAQ: proximity switch, then you need to replace damaged or loose wiring inside the cabinet added to the switch or wiring diagram line connected.
To the crusher to maintain a good working condition, ready to be put into operation, to reduce the incidence of failure, crusher, good rates and utilization, to extend the life of the crusher, the day-to-day care and maintenance of the crusher is indispensable, not only does not support, and just repair the raise. Always pay attention to the crusher equipment lubrication and maintenance, and bearing maintenance, prevention crusher "strike."
Crusher is a kind of squeezed abandoned the anode blocks or carbide crushing a crushing plant for reuse. While the role of the master cylinder is driven by a toothed plate crushed anode block, the cylinder tube is part of the hydraulic cylinder relating it with the end cap, Bottom, oil, mouth and other parts constituting the seal cavity for accommodating the pressure oil, it is the movement of the piston track. This article focuses on the design and calculation methods of the cylinder.
The design of the master cylinder cylinder, i.e. kiln correctly determine the dimensions of each part to ensure that the hydraulic cylinders have sufficient output power, velocity, and the effective stroke, and also need to have a certain strength to withstand the fluid pressure, the load force and unexpected impact. In addition, the inner surface of the cylinder tube having a suitable fitting accuracy, surface roughness and geometrical accuracy, in order to ensure the tightness of the hydraulic cylinder, smooth motion and durability.
① the output force of the hydraulic cylinder
F = abe, a, b are to be broken the length and width of the anode blocks, crushing e anodes is greater than or equal to 35.
2 hydraulic cylinder diameter calculation
Hydraulic cylinder diameter D can be calculated as follows:
, F is the hydraulic cylinder thrust (kN), P is the selected system working pressure (MPa).
③ cylinder wall thickness calculation and checking
Py is the pressure of steel drums experiments, σ] is the cylinder barrels material allowable stress.
④ of the cylinder tube material
Hydraulic cylinder cylinder commonly used material for seamless steel pipe 20,35,45 40 chromium. Normal circumstances, are made of 45 steel, quenched and tempered to 241 to 285. Cylinder blank forged steel, cast steel or cast iron pieces can be used. Cast steel can be 35 and other materials, cast iron or ductile iron can be several grades of 200 to 350.
Ball mill is not only a large number of applications in the cement industry, metallurgy, electric power, mineral processing, chemical industry have good performance. The product features of the device are as follows:
1, for a wide range of materials broken. A ball mill for a hard, soft, brittle and toughness can grinding. Ball mill specifications are abundant, so well adapted to the production requirements of a variety of industries, and production of the equipment to meet production needs.
2, a ball mill pulverization. The ball mill crushing ratio of up to 300 or more, the device is easy to adjust and control the fineness of the material, uniform particle size, good mixing.
3, can be adapted to the type of operation the both dry operations can also be wet operation, but also to the drying and grinding together simultaneously.
4, the structure of the ball mill is simple, rugged, reliable operation, easy maintenance and management, to facilitate inspection and replacement of wearing parts, long-term continuous and stable operation.
The abrasive powder preparation process longest, the lowest productivity of a process. In grinding, the four force to the particulate material, i.e. shocks, abrasion, shear and compression. The impact of another particle is a particle body was instantaneous impact, then, the two granules may be in motion, or a particle body is stationary. Wear due to friction between the two objects generated wear debris or particles. When the material is fragile and very low wear resistance, to give priority attention to the grinding force. Shear the particles is cut or split, it is usually combined with other forms of force. Shear using the cutting method the particles broken into individual particles, and minimal fines generated simultaneously. Compression is slow to put pressure on the body of the particles, crushed or extruded granular materials
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