Professional in Gold Mining-Trommel Screen

Specifications

Trommel Screen-For Gold Panning
1.Professional in Gold Mining
2.Low price, good effect
3.Also have Mobile Trommel Screen

Trommel Screen      This series of Trommel Screen are always used in processing minerals such as ferrous metals including hematite & magnetite And nonferrous metals including Lead, Zinc, Gold and Silver etc. This machine works in a re-circulating network with Ball mill, which can upgrade the fineness of ferrous and nonferrous metals. It is best used with gold sieve,
     In order to meet customer demand, the company has also developed a mobile trommel  screen. 

Model	Capacity (t/h)	Power (kw)	Output  (mm)	Input  Size (mm)	Weight  (t)
GTS1015	50	5.5	0-10mm	≤ 150	2.8
GTS1225	100-160	7.5	0-10mm	≤ 200	4.2
GTS1530	200-250	11	0-10mm	≤ 250	5.1
GTS1545	300-350	15	0-10mm	≤ 300	6.0
GTS1848	400-450	22	0-10mm	≤ 300	7.5

         
Mobile Trommel Screen Technical Parameters
 

Type	Cylinder Size (mm)	Feed Size (mm)	Under Screen Size (mm)	Power	Capability (t/h)
GT-M6012	600×1200	<100	<10	Diesel Engine	1-5
GT-M8018	800×1800	<100	<10	Diesel Engine	10-30
GT-M1020	1000×2000	<200	<10	Diesel Engine	45-70

 

Email: ldhm01@gmail.com

 

What is ore dressing

What is ore dressing?

     Ore dressing is to maximize separate the useful minerals and gangue mineral, to obtain the high-grade concentrate process, the process possible make the symbiotic useful minerals recovered into separate concentrates, remove harmful impurities, comprehensive recycling, Using a variety of useful component. Ore dressing main object is a natural ore, also including secondary resources, Such as tailings, surrounding rock and industrial and domestic waste.

 

Longding New Mining Eqiupments Web On Line

Today Longding New Mining Eqiupments Web：http://www.made-in-ld.com    (http://www.madeinld.com)       is one line.  It Ip is 66.116.139.87. In order to give customers a better experience,  Longding company decided to update new English international station. Longding will show a new look to customers.

About Longding Heavy Mahinery:

      Zhengzhou Longding Heavy Industry Machinery Co., Ltd. Specializes in manufacturing mining equipments and related products. She is located in the High & New Technology Industrial Development Zone, Zhengzhou, China. She covers about 15000 square meters, including 8570 square meters of heavy duty industrial facilities and close to Zhengzhou University and Henan University of Technology, just 2 kilometers away from G30 (Lian-Huo) Highway. Meanwhile, the new modern management of the new factory and workshop is planning to build. 
      Longding Heavy Machinery Company is subordinate to Zhengzhou Institute of Multipurpose Utilization of Mineral Resources CAGS and China National Engineering Research Center for utilization of Industrial Minerals. So she is famous for senior experts and experienced workers. She has many years of experience in supplying mining machinery, Integrates development and manufacturing in-house.
      Rely on the strong technology of Zhengzhou Institute of Multipurpose Utilization of Mineral Resources CAGS and casting parts supply form our brothers enterprises- Henan Province Xingyang mining machinery factory which was founded in 1956, unique occupation of technology and quality advantages.  As a member of Longding Heavy Machinery Company (LDHM), quality is our eternal pursuit and pride!

 

Ball Mill

Ball Mill

最平凡的小事

【最平凡的小事】一名农民将他刚做过手术的妻子背回家——这样的画面比城里小资们所谓海誓山盟的爱情都要来得真实、感人

众生百态

新兴镇寿荣索桥，济南军区某旅教导队官兵正在这里抢铺最后几段因地震损毁的桥面。十几名放学的小 学生被河水挡住去路，站在河边不知所措。“孩子别哭，叔叔给你们搭‘人桥’!”风雨中，现场带队的二中队队长郭建儒果断决定。“听我命令，趴下!”郭建儒 第一个趴向还没有铺好木板的桥面，两个、三个……33名官兵瞬间在风雨飘摇的索桥上用身板做桥板，为孩子们搭起了两段“人桥”!

Lattice-type ball mill-格子型球磨机

Lattice-type ball mill-格子型球磨机

Lattice-type ball mill

Lattice type ball mill is the material being broken, the further key equipment for grinding. It is widely used in mineral processing, construction and chemical industries, such as in cement, silicate products, new building materials, refractory, chemical fertilizer, black and non-ferrous metal ore-dressing and glass ceramics and other production industries, for a variety of ores and other materials can be carried out dry grinding or wet grinding.

Lattice Ball mill of Longding has the following advantages：

1. The hollow axis adopts the cast steel and the lining can replace, the rotating big gear processes in the way of casting rolling gear. The barrel body is wearable well and bears wearable scale board.

2. The machines run steadily and work reliably, low operating cost

3. Big crushing ratio, uniform final product size

4. It uses the whole rack, easy to civil construction and equipment installation.

5. It has taken out the material side cone design, which not only increased the volume, but also forcing cone side of the ball classification, the more near the exit, the smaller diameter steel ball, increasing the role of repeated grinding, then the fine material degree of further improved. 

格子型球磨机

格子型球磨机是被打破的材料，进一步研磨的关键设备。它广泛应用于水泥，硅酸盐制品，新型建筑材料，耐火材料，化肥，黑色与有色金属选矿以及玻璃陶瓷等生产行业，对各种矿石和其它材料，可进行干磨或湿式粉磨。

1.该球磨机传动采用滚动轴承代替滑动轴承，摩擦力大大降低，起动容易、节能显著；
2.它的出料端采取了锥体设计，这样既增加了容积，又迫使锥体端的钢球分级，愈接近出口，钢球直径愈小，增加了反复研磨的作用,便物料的精细程度进一步提高；
3.它采用沟槽式环型衬板，增加了球矿接触表面，加强了研磨作用，且对矿石有提升能力，降低了功率；
4.  中空轴采用铸钢和衬里可替代铸造轧齿轮，桶身是耐磨和耐耐磨衬板
5. 机器运行稳定，可靠地工作, 运行成本低

6.破碎比大，最终产品大小均匀

High Efficient Energy Saving Ball Mill

High Efficient Energy Saving Ball Mill 

High Efficient Energy Saving Ball Mill is one of high-efficient ball mills that Longding Heavy Machinery Developed.  It is the most extensive mixed mechanical grinding, which is widely used in production industry of Cement, Portland products, building materials, refractory material, chemical fertilizer, Ferrous & Non-Ferrous Metals and glass-ceramic, for kinds of ores and other grind-able materials dry or wet powder grinding.

Longding Heavy Machinery Co., Ltd. appropriate improves the deceleration devices or Choose to install the inverter to adjust the speed, to improve the efficiency of ball mill work by improving the speed; moisturize the Ore in grinding chamber to Increase Effectiveness of Ball mill work. Strengthen the reform of the lining. Using of different size steel ball or steel segment that to be full of grinding large and small ore.

Compared with the traditional ball mill, the machine application of the technology has a significant energy saving effect.

l        The motor power can be reduced 18 to 25%; saving lubricants about 70%; saving cooling water about 90%; comprehensive energy saving over 20%.

l        Under Normal Situation, ten years without replacing the main bearing, saving a lot of maintenance costs.

Main bearing lubrication by grease, not only conveniently, but also exempt from the heavy metal pollution. Through the reform of energy-saving technologies, improving the machine’s work efficiency and environmental protection index maximally.

 

节能球磨机是郑州龙鼎重型机械公司研制的球磨机型号中的一种高效球磨机，是当代最广泛粉磨混合机械, 广泛应用于水泥，硅酸盐制品，新型建筑材料、耐火材料、化肥、黑色与有色金属选矿以及玻璃陶瓷等生产行业，对各种矿石和其它可磨性物料进行干式或湿式粉磨。

   龙鼎重型机械通过对减速装置进行适当的改进，还可以选择安装变频器对转速进行调整，提高转速，进而提高球磨机工作效率；适当的对磨腔内的矿石进行水分增加，增加球磨机工作效率效果；加强衬板的改造，调整各仓内研磨体的运动状态，以达到最好的效果；优化使用不同大小直径的球石或钢段，这样可以对磨腔内的大小不一的矿石进行充分的研磨，提高球磨机的工作效率。

与传统球磨机相比，应用该技术的磨机所匹配的电机功率可降低 18 - 25%，节约润滑油 70%，节约冷却水 90%，综合节能 20% 以上。正常情况下，十年不用更换主轴承，节省大量维护费用，省工省时；主轴承润滑采用油脂，便捷干净，免除了重金属污染；通过节能技术的改造，最大的提高球机的工作效率和环保指数。

﹫郑州龙鼎重型机械版权所有；转载请联系版主

Efficient Dry ball mill-干法高效球磨机

Efficient Dry ball mill

The dry ball mill is one of the main equipments that our company research to manufacture. Because the traditional ball mill does not have pertinence, therefore, in the requirements for grinding high precision materials, we developed a new efficient dry mill. It is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for the dry and wet grinding for all kinds of ores and other grind-able materials. Meanwhile，it have also been widely used in the new materials enterprises, for the material which is high hardness and difficult to crushed, such as Carbide, iron-based alloys.

Our company’s efficient dry ball mills have the following characteristics:

1.  Optimization design of tank speed, it makes medium - balls form a shed-style movement to dispersed materials, to get the best grinding results.

2.  Transmission torque, high efficiency, smooth starting. Eliminating the recurring adjustment belt trouble.

3.  Use of protective measures, high purity, high environment protection, low pollution.

4.  It has unique design, that material, and the balls can be automatically separated, convenient to output.

5.  Internal lining parts can be used alloy steel castings, TAZS, zirconia etc. wear-resistant material. The type can be customized according to user output.

6.  Main bearing use double row self-aligning roller bearings, saving power more than 30% than the ordinary mill. Increase the processing power about 15%. High-pressure air make materials from the air shaft into the low-speed rotation of the grinding tube, the powder, which not reach the required fineness, will back to the feed-side to regrinding, efficient abrasive materials, and help to improve the ore grade.

         The machine is mainly used in factories, mines and industrial sectors of cement, refractory, chemicals, nonferrous and ferrous metals. The emergence of efficient dry ball mill, which Longding developed, improved grinding efficiency of the material greatly. So it has greater market prospects, walk in the forefront of the development of dry mill, followed by home and abroad companies constantly.

 

干法高效球磨机

中文版

干法球磨机是我公司研究制造的主要设备之一，因为传统的球磨机不具备针对性，所以我们针对一些要求粉磨精度高的物料研制除了新型干法球磨机，广泛应用于水泥，硅酸盐制品，新型建筑材料，耐火材料，化肥，黑色与有色金属选矿以及玻璃陶瓷等生产行业，同时针对超细粉体领域中一些硬度高，难以粉碎的物料如硬质合金、金刚石、铁基合金等一些新材料企业也获广泛应用。

我公司研制的干法高效球磨机具有以下特点：

（一）           罐体转速优化设计，可使球磨罐体内的介质球形成倾流式运动分散物料，获得最佳研磨效果，较快的把物料磨细。

（二）           传动扭矩大，机械效率高，启动平稳的特点，并免除了经常性调整传动带带来的麻烦。

（三）           采用保护外套，物料纯度高，高环保，低污染。

（四）           该机设计独特，料、球能自动分离，出料方便。

（五）           可选用合金钢、不锈钢、高耐磨聚氨酯、刚玉陶瓷、氧化锆等抗磨损内衬，型号可根据用户产量量身定制。

（六）           主轴承采用双列调心滚子轴承，比普通磨机节省动力30%以上，增加处理能量15%左右。高压空气把原料从中空轴带入低速旋转的磨筒，达不到细度得粉料由回进料端中空轴进入磨体重磨，高效研磨物料，且有助于提升矿粉品位。

该机主要用于水泥、耐火材料、化工、有色及黑色金属属等厂矿工业部门，作粉磨各种矿石及其他可磨性材料之用。龙鼎研制的干法高效球磨机的出现，更大程度的提高了物料的粉磨效率，也顺应了用户对一些新物料的粉磨要求。所以了具备更大的市场前景，走在了干法磨机研制的前沿，不断被国内外同行所效仿。

带筛球磨机的主要技术参数

带筛球磨机的主要技术参数： 

Φ1900x900型带筛球磨机技术参数明细：

项       目		单位
转 筒	筒体直径	毫米	1900
	筒体长度	毫克	900
	有效容积	米3	1.96
	工作转速	rpm	24.15
电 动 机	型号		Y200L1-6
	功率	kw	18.5
	转速	rpm	970
减 速 机	型号		ZQ65-40-II
	高速轴许用功率	kw	18.8
	传动比	I	40.17
装 球 料 量 生 产	进料粒度	毫米	≤50
	出料粒度	毫米	≤2.5
	装球量	公斤	≤750
	装料量	公斤	≤150
	料球总量	公斤	≤900
	生产率	公斤/小时	500~800
机器重量      （公斤）		kg	7337.8
外形尺寸 （长 x 宽 x 高）		Mm	4330 x 2600 x 3118

规格	简体 转速 r/min	装球 量t	进料 粒度 mm	出料 粒度 mm	产量 t/h	电动机		外形尺寸 长x宽x高 mm	重量 t
						型号	功率 kw
Φ1700x700	30	0.63	≤40	≤1.2	0.3-0.5	Y160L-6	11	3760x2220x2700	4.3
				≤8	0.5-0.8
Φ1900x900	26.8	0.74	≤40	≤2.5	0.5-0.8	Y180L-6	15	4330x2600x3118	7.3
				≤8	0.6-1
Φ2200x1200	23.8	1.26	≤40	≤3	0.8-1.2	Y225M-6	30	4960x3080x3676