First, work efficiency had gradually reduced at an alarming level. Due to time limit, the period of machine setup and adjustment the frequency of which had been increasing parallel with the number of orders made the machinists annoyed and threatened to break the budget. Though, in fact, this step of process should be paid more attention as it decided all the following steps and even the quality of the products.…
5. Inspect the drive pinion gear bearing cup on the torque converter and differential housing…
1 |Fabrication |John |2/11/08 |4/11/08 |60 |20% |12 |48 | |1.1 |Spindle shaft | |2/11/08 |2/25/08 |14 |100% |14 |0 | |1.2 |housing | |2/25/08 |3/07/08 |11 |0% |0 |11 | |1.3 |housing end caps | |2/25/08 |3/07/08 |11 |0% |0 |11 | |1.4 |cross-feed flexure | |3/17/08 |4/01/08 |15 |0% |0 |15 | |1.5 |lead screw flexure | |3/17/08 |4/11/08 |25 |0% |0 |25 | |2 |Error model task |Jane |2/11/08 |5/14/08 |93 |0% |0 |93 | |2.1 |list of spindle error sources | |2/11/08 |2/25/08 |14 |0% |0 |14 | |2.2 |model individual spindle errors | |2/11/08 |3/10/08 |28 |0% |0 |28 | |2.3 |finish full spindle error sources | |2/11/08 |5/14/08 |93 |0% |0 |93 | |2.4 |list of flexure error sources | |3/03/08 |3/17/08 |14 |0% |0 |14 | |2.1 |model individual flexure errors | |3/03/08 |3/17/08 |14 |0% |0 |14 | |2.2 |finish full flexure error model | |3/10/08 |4/07/08 |28 |0% |0 |28 | |2.3 |list of drive error sources | |3/31/08 |4/07/08 |7 |0% |0 |7 | |2.4 |model individual drive error | |3/31/08 |4/28/08 |28 |0% |0 |28 | |2.5 |finish full drive error model | |3/31/08 |4/28/08 |28 |0% |0 |28 | |2.6 |HTM-based lathe error model | |2/11/08 |5/14/08 |93 |0% |0 |93 | |3 |Measurement task dates |Bill |3/07/08 |4/28/08 |52 |0% |0 |52 | |3.1 |CMM training | |3/07/08 |3/21/08 |14 |0% |0 |14 | |3.2 |Spindle error motions | |3/07/08 |3/17/08 |10 |0% |0 |10 | |3.3 |Cross Slide error motions | |3/19/08 |4/07/08 |19 |0% |0 |19 | |3.4 |Carriage error motions | |4/07/08 |4/28/08 |21 |0% |0 |21 | |4 |Report results and Conclusions |Bill |2/11/08 |4/28/08 |93 |0% |0 |93 | |4.1 |Outline (text, table & figure placeholders) | |3/31/08 |4/07/08 |7 |0% |0 |7 | |4.2 |images | |2/11/08 |4/30/08 |79 |0% |0 |79 | |4.3 |tables | |3/10/08 |4/30/08 |51 |0% |0 |51 | |4.4 |1st draft in separate modules | |4/07/08 |4/30/08 |23 |0% |0 |23 | |4.5 |integrated, final draft | |2/28/08 |5/14/08 |76 |0% |0 |76 | |4.6 |design notebooks | |2/11/08 |5/14/08 |93 |0% |0 |93 |…
First, the ball mill anti-blocking, leak-proof basic knowledge:The anti-blocking, we first need to check the sizes of materials and material feeding amount, if the delivery volume overload, can also cause the clogging of import.For the proof, we first check whether the imported seal wear, after a period of time will have leaked, we should timely replacement of packing seal.And we have the entrance position design discharge funnel and pipes, can be timely will leak slurry discharged into the trench.Second, wet ball mill liquid pump speed adjustment:Through debugging during night cyclone station pressure test, to replace the slurry pump belt pulley.In third, ball mill imports and exports effects of abrasive material size:Ball mill control into the limestone particle size, in the scope of design.General wet ball mill feed size of 80% particles of less than 12mm.Regulation of entrance feed mill.General to reduce electricity consumption, mill should be routinely maintained in rated operation conditions, but sometimes as a result of a variety of reasons, the steel ball added is not timely, then according to the ball mill main motor current to reduce properly reduce the feeding quantity, to ensure the qualified pulp particle size.In fourth, the ratio of ball mill to adjust grinding material size:To maintain a reasonable ball loading and the steel ratio.Limestone is on impact, extrusion…
said to be the fault of the machine. Now with inspecting and research it has been…
Model 3-1 was has been run for 8 hours (480 minutes) instead of 20 minutes. The plots on queue length and the number of times the drill press is busy or idle for the 8-hour run is given figure 1.…
Furthermore, I worked at the cement mill section of the plant (Ball Mill). I worked together with the production engineers to carry out periodic mill audits of the two ball mills. In addition to these, I was involved in conducting risk assessment of major works in the plant in line with the company’s safety and environmental standards.…
The working efficiency directly affects the concentrator economic benefits of the beneficiation factories. Therefore improve the efficiency of the mill is very important. Generally speaking, the factors restricting the improvement of the efficiency as following: 1. The electric current For ball mill, enlarging the current is to increase the rotate speed. If the has high rotate speed, its work efficiency will be high. However, there is one notice: the increased current should be within the scope of the rated power range. Otherwise, it will burn away ball mill. 2. Ball stone Here it is very important to collocate the diameter of the ball. To make fully grinding the different size of ores, it demands different sizes ball stone. And then it can improve the ball mill working efficiency. 3. The formula of raw materials Reasonable selection of formula can not only improve the intensity of ball, but also increase its weight. Consequently, the formula can increase its inertia, to improve the working efficiency of the ball mill. 4. Reduction gear To improve rotate speed play an important role in improving the work efficiency of ball mill. Therefore, the appropriate improvement for reduction gear also can take effect. The factory can choose to install inverter to adjust the rotate speed, which is benefit to achieve satisfactory results. 5. Water added The moisture in the ore has something to do with the ball mill working efficiency. Therefore, help the ore in the mill cavity moisturize also can improve the ball mill working efficiency. 6. Dispersant To some extent, putting dispersant into the ball mill can improve its working efficiency. As a professional in Shanghai Zenith, has 20 years of production experience, advanced ball mill technology, strong technical, reasonable ball mill price, and welcome consumers to visit consultation.…
Faculty Course : : Engineering & Science Bachelor of Engineering (Hons) Mechanical Engineering Year 3/ Semester 1 Unit Code Unit Title : : UEME3133 Mechanics of Machines…
As for the shoes is too big, feeding device electrical overload; For shoes is too small, no ball.Thus the skilled operation skill is vital to guarantee the normal work of the ball. Hydraulic pressure protection device of high pressure ball machine is composed of hydraulic pump high pressure oil into the hydraulic cylinder, the piston to produce axial displacement. Non-ferrous and ferrous metals ore powder ball block, directly into the furnace smelting, increase the added value.Metallurgical waste materials, auxiliary materials need to be on the stove, all need to pressure the ball machine to complete. The final products pressed by ball machine, it can save energy and protect environment, easy to transport, improve the utilization of waste, with good economic and social benefits.High pressure ball machine working process:High pressure on the roller pressure ball machine industrial use and improvement after many years, compared with other similar products, this series high pressure ball machine successful rate, small power consumption, compact structure, convenient maintenance and debugging and so on obvious advantages, magnesium smelting process was numerically simulated with no doubt is the key to a kind of ideal equipment. To satisfy the requirement of material forming, to pressure screw used electromagnetic speed regulating motor, speed control mode is manual type, the user may be changed into a ball the basis the circumstance to the compressor speed to achieve the highest ball rate and maximum capacity, suppression of material by the sieving machine, oversize qualified pellets for packaging, undersize material can be mixed with new material and then to return storehouse briquetting.High pressure ball press machine is a powder material is compressed into the ball. The application of pressure ball machine is very extensive, pressure groups, on the following materials for granulating or pressure, such as aluminum, activated carbon, alumina, bauxite, caustic soda,…
Ball mill is the vital equipment for regrinding after primary crushing. It is extensively applied in cement, silicate products, new construction material, refractory material, chemical fertilizer, ferrous and non-ferrous metals beneficiation and glass ceramics industries. It is great choice for dry or wet grinding any kinds of minerals and other grindability materials.…
If Raymond mill noise becomes abnormal or currency becomes big suddenly, we must stop Raymond mill and check every part, when you resolve the problem and then Raymond mill operator begins to normal grinding production.…
1. Drilling sand pump (centrifugal) in solid control system, drilling sand pump is used for the drilling desander http://www.kosungroup.com/products/solids-control-equipment/desander.html , desilter, mud cleaners and other equipment for the material, transport medium containing solid-phase cycle drilling fluid. Existing drilling sand pump seal with a simple mechanical seals, resulting in fluid sand pump bearings (sealed) string into the drilling fluid within the normally rather fluid contains large amounts of solid particles. Thus making mud pump bearings quickly damage, causing many to give up drilling drilling crew desander with desilter etc. Use only shale shaker, a serious deterioration of the drilling conditions.…
Mill operate normally, the operation conditions remain unchanged, the running current hongxingly is remained in the rated range . When grinding machine is gave more amount and operate operate normally to causes 'deflation belly' phenomenon. except the abnormal of voice , observing ammeter will find the decline of current. It shows that in steel Ball Mill and mineral have no impact and grinding strip effect, with cylinder rotate together, electrical motor do poder at least.running run can't reach rated current. The transmitter in the rod mill is the steel rod,which falls down vertically and contact with the ore.It has selective crushing function,that is to crush the ore as order from big to small,so the product ‘s grain size is even,it suits for the rough mill or for the mine factory that requires the ore to go through the Fine Crusher.…
First of all, the ball mill was charge with pebbles to approximately 50% of the mill volume and with sand approximately 25% also. Then the ball mill was switch on and operation was done for one hour. Simultaneously the size distribution of the given sand was noted by using the set of sieves. After one hour later the size distribution was noted for the ground sample. Then ball mill was charged again with pebbles to approximately 25% of the mill volume and with sand approximately 25%. After that this sample was grounded for a one hour. After one hour later the size distribution was noted for this ground sample also. All readings were recorded.…