Wet Rod Mill

What is Wet Rod Mill?

Rod mill can be divided into dry rod mill, wet rod mill. Different from the ball mill is built-in rod mill is a steel rod type grinding body, the use of cylinder cyclotron rotation generates centrifugal force, the steel rod will be raised to a certain height and then thrown down to the ore impact crushing to achieve the grinding effect. Rod mill can also do fine crushing work, processing softer or hardness of the ore, configuration is simple and low cost, can be better to 19-30 mm ore grinding to 6-10 mesh.

Wet rod mill has three types of rod mill: overflow type rod mill, end peripheral discharge rod mill and center peripheral discharge rod mill, which can meet the different needs of customers. Chunlei rod mill is reasonable in price and simple in use, which is a better choice partner for rod mill manufacturers.

If you are a beginner and do not know about Wet Rod Mill, tell us your raw material characteristics, finished product requirements, site conditions, production budget, hourly production, and other requirements, we have professional engineers to equip you with a suitable model at a reasonable price. Next, let’s see the types of Wet Rod Mill we can supply.

What Is Wet Rod Mill Used For?

Rod mill is used as the initial open circuit grinding, suitable for nonferrous metal, ferrous metal, nonmetal ore dressing site and chemical industry, building materials and other industries grinding materials to use.

For example: A foreign mineral processing plant, the grinding system out of the ore containing water and mud, particle size difference is too large, in the case of a section of the open circuit, the grinding efficiency is relatively low, the quality of the material is relatively poor, far from reaching the intended target, so the selection of Chunlei’s wet rod mill, the rod mill because of the conical section of the cover with a small curvature, the steel rods rule the movement of the steel rods to grind the size of the steel rods is more uniform. The final solution to the problem of the mineral processing plant, so that the mineral processing work is efficiently completed within the specified time.

Wet Rod Mill ordered by Customer

Chunlei Machinery has been engaged in mining machinery manufacturing for more than 30 years, with a wealth of experience in building websites and customer cases, served customers all over the world!

Technical Parameters of Wet Rod Mill

Model	Cylinder diameter (mm)	Cylinder length (mm)	Motor Model	Motor power (kW)	Motor RPM(r/min)	Length (mm)	Width (mm)	Height (mm)	Capacity (t/h)	Effective volume (m3)	Weight (kg)
MBY 0918	900	1800	Y225M-8	22	730	4980	2370	2020	0.62~3.2	0.9	5700
MBY 0924	900	2400	Y250M-8	30	730	5670	3280	2020	0.81~4.3	1.2	5880
MBY 1224	1200	2400	Y280M-8	45	730	6450	2800	2500	0.4~4.9	2.28	12308
MBY 1530	1500	3000	JR125-8	95	725	7935	3185	2280		5	19990
MBYg 1530	1500	3000	JR117-8	80	725	7253	3070	2280	2.4~7.5	5	21210
MBYg 2130	2100	3000	JR136-8	180	735	8122	4220	3073	14~35	9	42123.5
MBYg 2136	2100	3600	JR137-8	210	735	8958	4320	3025	43~61	10.8	45800.5
MBYg 2430	2400	3000	JR138-8	280	735	9004.5	4836.4	3490		11.5	55795
MBYg 2732	2700	3200	JR157-8	320	750	10509	5000	3620		15.7	83110
MBYg 2736	2700	3600	JR158-8	380	743	10764	5750	3620	32~86	17.7	90441
MBY 2740	2700	4000	TDMK400-32	400	187.5	12300	5700	4700	43~110	20.4	75000
MBY 3040	3000	4000	JR1510-8	570	740	9800	3900	3900	54~135	26	90000
MBY 3245	3200	4500	TDMK800-36	800	167	14600	7000	5300	64~180	31	113000
MBY 3645	3600	4500	TDMK1250-40	1250	150	15200	8800	6800	80~230	41.8	139000
MBY 3654	3600	5400	TDMK1600-40	1600	150	15900	8800	6800	100~250	49.7	150000

Working Principle of Wet Rod Mill

The rod mill is driven by an electric motor through a speed reducer and peripheral large gear deceleration drive or by a low-speed synchronous motor directly through the peripheral large gear deceleration drive, driving the cylinder rotary. The cylinder is equipped with appropriate grinding media – steel rods. Under the action of centrifugal force and friction, the grinding media is lifted to a certain height and falls down in the state of throwing or draining. The material to be milled enters the inside of the cylinder continuously from the feed opening, is crushed by the moving grinding media, and the product is discharged out of the machine by the force of overflow and continuous feeding for the next section of the process operation.

The discharge method of rod mill is adopting overflow type and open discharge method, and the hollow journal diameter of its discharge end is larger than that of ball mill of the same specification. Generally, in the case of less hard or softer ores (especially viscous ores), the rod mill can replace the short-head cone crusher for fine crushing operation, and deal with the ores of 19-30mm grinding to 6-12 mesh, it has a simpler configuration and lower cost than that of the cone crusher and screening into a closed circuit.

Advantageous features of Wet Rod Mill

• Rod mill features in the grinding process, steel rods and ore direct contact, with a certain selective grinding effect.
• The conical end cap of the rod mill has a small curvature, which enables the steel rods to move regularly in the mill, and is not easy to be clogged, with high production efficiency.
• The product size is uniform, less over-crushing phenomenon.
• The fineness of the discharged material can be adjusted, the coarse particles are polished first, and then the smaller ore particles are ground, so the danger of over-crushing is reduced.
• The diameter of the hollow shaft of ore discharge is larger, which is convenient for maintenance, and at the same time, it can reduce the liquid level of the pulp and discharge the ore quickly.
• The rod mill internal steel rod device is wear-resistant and has a long service life.

FAQ

Q: Which industries are wet rod mills suitable for?

A: Wet rod mills are widely used in mineral processing, quartz sand processing, manufactured sand production, metallurgy, the chemical industry, and construction materials. They are particularly suitable for production scenarios requiring high uniformity in the final product’s particle size.

Q: Why do wet rod mills result in less over-grinding?

A: Wet rod mills utilize a line-contact grinding method with steel rods, subjecting the material primarily to selective breakage. Fine particles are not repeatedly ground; consequently, the final product size is more uniform, and over-grinding is significantly reduced.

Q: Can wet rod mills be used for quartz sand production?

A: Yes. Wet rod mills are common equipment in quartz sand production lines; they effectively control particle size distribution and improve product quality, making them widely used in the processing of high-purity quartz sand and quartz sand for glass manufacturing.

Q: How often should the steel rods in a wet rod mill be replaced?

A: The replacement cycle depends on material hardness, processing throughput, and operating time. Under normal conditions, steel rods can last from several months to over a year; regular replenishment and proper rod grading can effectively extend their service life.

Q: Can the discharge particle size of a wet rod mill be adjusted?

A: Yes. By adjusting the steel rod grading, grinding time, feed rate, and discharge method, products of various particle sizes can be obtained to meet different process requirements.

Q: How much water is required during the operation of a wet rod mill?

A: The amount of water added is determined by material properties and process requirements. An appropriate water-to-material ratio not only improves grinding efficiency but also reduces clogging and equipment wear, ensuring stable production.

Q: Are wet rod mills suitable for processing high-hardness ores?

A: Yes. For medium-to-high hardness materials such as iron, copper, and gold ores, wet rod mills deliver excellent grinding results, providing the ideal particle size for subsequent mineral processing stages.

Q: Can wet rod mills operate continuously for 24 hours?

A: Yes. The wet rod mill features a heavy-duty design equipped with high-quality bearings and a robust drive system; it ensures continuous, stable operation under normal maintenance conditions, meeting the demands of industrial-scale production.

Q: What are the advantages of a wet rod mill compared to a sand-making machine?

A: Sand produced by a wet rod mill features more uniform particle shapes and a lower content of needle-like or flaky particles, making it particularly suitable for producing high-quality manufactured sand and quartz sand; however, its output capacity is generally lower than that of large-scale sand-making machines.

Q: What information is required when purchasing a wet rod mill?

A: To ensure accurate equipment selection, it is recommended to provide details such as the material type, feed particle size, target discharge particle size, processing capacity, and project location. Based on this information, engineers can recommend the most suitable equipment configuration and provide a quotation.