1) Before starting the equipment, the operator should carry out a comprehensive inspection of the equipment, including bolt tightening in all parts, reducer oil level and bearing lubrication.

2) Jaw crusher should start without load, and only when it reaches normal speed and has no abnormal condition can it start feeding. The feeding should be stopped before normal shutdown, and only after the material in the crushing chamber is discharged can the shutdown be stopped, except in special cases. No start-up with load is allowed.

3) After long-term shutdown or before the initial start-up, the jaw crusher should be thoroughly checked to see whether the bolts are loose, whether enough lubricating oil is injected into the reducer, whether lubricating grease is added to the bearings, whether the wiring of the electrical circuit and the control switch is correct, whether the wiring is loose or not, and whether the material in the crushing chamber has been cleared. After confirming the correctness, start the jaw crusher and observe whether the direction of the jaw crusher is correct, then the jaw crusher can be officially started.

As the most widely used vertical roller millin vertical roller mill equipment, with its excellent grinding technology, it is widely used in mineral processing, building materials and chemical industry.

The working efficiency of vertical roller mill in operation is affected by many factors, among which the rotational speed plays a vital role in the production process of vertical roller mill. The rotational speed of vertical roller mill is adjusted according to the different crushing degree of equipment. How to regulate it? SBM Mining Machinery Co., Ltd. for your detailed analysis:

The vertical roller mill can be divided into fine grinding and rough grinding according to the needs of users and different materials. When fine grinding is carried out in industrial production, we should adjust the speed of vertical roller mill. The principle is that when the speed of the vertical roller mill is low, the grinding medium will roll down when it is brought to a certain height by the drum.

In the plasterboard industry, the ultrafine mill can scatter and lift the desulphurized gypsum slag cake with water content less than 12% by the rotor of a ultrafine mill. Moreover, it can be fully heat exchanged with the 550 ℃ hot air introduced to form the material with water content of less than 1%. The material enters the rising pipe from the exhaust pipe and is carried away by hot air into the next process. The ultrafine mill can also be used in the cement industry for and crushing carbide slag in filter cake and environmental protection field.

The performance characteristics of the ultrafine mill:

1. Overcome the problem of short life of the crusher hammers at high temperature.

2. A reasonable and reliable processing technology is adopted.

3. High quality material and advanced automatic processing equipment;

4. The ultrafine mill is reliable, stable and easy to maintain.

5. All environmental indicators of the ultrafine mill are in line with the requirements of the state.

The production capacity sand washer has certain advantages compared with that of ordinary sand washer. It can not only be used for crushing waste asphalt concrete and construction waste, but also has the function of coarse crushing and crushing, the production of materials can be up to 320 Mpa at the capacity of 100 tons per hour. It has vibration automatic feeding system and remote control hydraulic fault function, sand washer inside and outside of the water spray system can clean dust, which reduces unnecessary costs and achieve environmental protection.

SBM Mining Machinery advocates green production and international integration. It has a high-quality team, advanced technology, first-class service attitude and satisfactory after-sales service. The sand washer manufactured by SBM Mining Machinery has the advantages of low cost, diversified collocation, guaranteed quality and long service life, which can create greater benefits for users. Welcome to our company for consultation and order.

The following are the advantages of cement vertical mill in processing cement materials:

1.The efficiency of vertical grinding mill grinding of cement

The internal analyzer of the vertical grinding mill can distinguish whether the grinding fineness of the finished product is up to the specifications of the equipment. The analyzer will be re-expanded and replaced in the mill, thus repeating the process to ensure that the material can meet the required fineness requirements. In order to test the efficiency and flow of the milling machine, it is necessary for customers to purchase an on-site testing machine for ultra-fine mill equipment.

2.Material Strength

The strength of different materials is different, and the suitable strength of ultrafine grinding can be selected according to different needs. SBM Mining Machinery Co., Ltd. vertical grinding mill can better meet the production needs of different customers in different grinding fineness range. If some materials are too strong, they need to be grinded after grinding and crushing to ensure grinding and grinding efficiency.

1. Material viscosity:

The higher the viscosity of materials, the easier adhesion. The material with high viscosity will stick to the inner wall of the sand making chamber in the sand making machine. If it cannot be cleaned in time, it will seriously affect the working efficiency of the sand making machine and seriously affect the normal work of the sand making machine. Therefore, when selecting materials, it is important to note that the viscosity of materials should not be too high.

2. Composition of materials:

The more fine powder there is in the material before sand making, the more influence it will have on sand making, because these fine powder will adhere easily and affect the transportation. Therefore, for the material with a large amount of fine powder, a screening should be carried out in advance to screen the fine powder from the material as far as possible, so as not to affect the normal operation of the sand making machine.

3. Humidity of materials:

If the water content is high, it is easy to adhere to the material when it is broken in the sand making machine, and it is also easy to block in the conveying process, resulting in the reduction of sand making capacity. In order to solve this problem, the humidity of materials should be strictly controlled when selecting materials. If the humidity of materials is too high, sunshine or air drying can be adopted to reduce the percentage of moisture in materials.

It is divided into cylindrical vertical roller mill, roller vertical roller mill, disc vertical roller mill, ring vertical roller mill, in addition, have rotor vertical roller mill, belt vertical mill, conical vertical roller mill, but these types of vertical roller mills have been used less.5 Constant, alternating, pulsating magnetic field vertical roller millAccording to the way the magnetic field strength changes:

1) Constant magnetic field vertical roller mill. Using a permanent magnet material and a direct current electromagnet, a solenoid, or the like as a magnetic source, the magnitude and direction of the magnetic field strength do not change with time.

2) Alternating magnetic field vertical roller mill. An electromagnet that is connected to an alternating current is used as a magnetic source. The magnitude and direction of the magnetic field strength changes over time.

3) Pulsating magnetic field vertical roller mill. An electromagnet that simultaneously transmits direct current and alternating current is used as a magnetic source. The magnitude of the magnetic field varies with time, but the direction does not change. And pulse

The jaw crusher has the characteristics of large crushing ratio, uniform product size, simple structure, reliable operation, simple maintenance and economical operation cost.

The jaw crusher is widely used in mining, smelting, building materials, highways, railways, water conservancy and chemical industries, etc. It breaks various materials with compressive strength not exceeding 320 MPa.

The jaw crusher is mainly composed of frame, supporting device, working mechanism (fixed and moving jaw plate), transmission mechanism (eccentric connecting rod, thrust plate, flywheel, eccentric shaft), safety device, adjustment device of drainage outlet (wedge adjustment device, gasket adjustment device) and so on. 

When the ultra-fine mill works, the materials to be crushed are added into the machine from the feeding hopper on the side of the machine cover shell. It relies on a roller-grinding device suspended on the main frame to rotate around a vertical axis while rotating itself. 

Because of the action of centrifugal force during rotation, the grinding roller swings outwards and presses firmly on the grinding ring, so that the shovel picks up the material and sends it between the grinding roller and the grinding ring. As a result, the grinding roller can crush the material by rolling. The process of wind selection: after the material is grinded, the fan blows the wind into the main engine shell, blowing up the powder, sorting through the analyzer above the grinding room and passing the coarse material into the grinding room and regrinding. 

The fineness conforming to the specifications will enter the cyclone collector along with the wind flow, and after collection, it will be discharged through the powder outlet, that is, the finished product. The air flow is fed back into the fan by the return duct at the upper end of the cyclone collector. The increase of the air volume of the circulating air channel is partly discharged by the exhaust pipe between the fan and the main engine, and enters the small cyclone collector for purification.