CN2390694Y - Ball mill adapted to disintegrating waste hard alloy - Google Patents

Abstract

The utility model discloses a ball mill for crushing waste hard alloy. On the basis of the background art, a cylinder is changed into a high manganese steel integral cast shaping by an assembly hard alloy lining board of an inner shell, and the inner wall of the cylinder is additionally provided with ribs to improve the crushing strength when the ball body is risen and fallen. A speed regulation type transmission system is used for regulating the rotation speed. The utility model efficiently overcomes the defects that the device cost of the background art is high, the service life is short, the productivity is low, the powder is easily polluted by two times, etc. The production period shortens more than 90%, the device cost reduces 80%, the service life improves more than ten times, and the secondary pollution of the powder is efficiently prevented.

Description

In order to pulverize the ball mill of hard alloy scraps

The utility model belongs to the hard alloy scraps reclaiming and utilizes pulverizing processing equipment in the field; Particularly a kind ofly adopt the mode of ball milling to pulverize, grinding is so that the ball mill of regeneration.The raw meal that suitable CEMENTED CARBIDE PRODUCTION is used is pulverized, ground to form to the hard alloy scraps that this ball mill especially is fit to after thick the breaking; Also can be used for pulverizing, attrition process to other hard fragility material.

Along with high speed development of national economy, increasing to the demand of carbide alloy in industries such as traffic, the energy, machine-building, geology and mine, oil exploration and building decoration and department.The resource of meanwhile producing the required primary raw material of carbide alloy but reduces day by day.In order reasonably to utilize these Limited resources, after a large amount of hard alloy scraps recovery, regeneration has just become present pendulum each main carbide alloy producer important topic in front in the world.The key issue of hard alloy scraps reclaiming utilization is at first hard alloy scraps should be pulverized, grind to form and meet the raw material that the hard symphysis produce to require, and then technology makes hart metal product routinely.Characteristics such as at present, in various recovery technologies at hard alloy scraps, it is short that the mechanical crushing recovery processing technique has flow process, and the relative tube of equipment and technology is single.But the conventional broken machine of the powder that mechanical crushing process adopted (breaking) is an embedding carbide alloy liner plate in the enclosure, and the ball mill of the large scale of packing into sintered carbide ball be broken into powder by rolling to grind, and then technology is made hart metal product routinely.What " the mechanical crushing method technology " that the 2nd, 3 joints are addressed in the reclaiming and the utilization of residual carbide alloy " useless " (rare metal and carbide alloy, total December nineteen ninety-five the 123rd phase P48～51 pages) literary composition was adopted is exactly this ball milling formula pulverizer.This type of ball mill is owing to mainly reach the purpose of pulverizing by relative rolling grinding between spheroid and liner plate, spheroid and the spheroid, therefore efficient is extremely low, a general batch of material need roll and grind about 500 hours, reach the granularity of standard-required toward the contact difficulty, and the oxygen content height of powder has a strong impact on the quality of alloy product; Utilize carbide alloy to make ball grinding machine lining board, the one, processing, installation difficulty must be processed into several block assembly units, cost height and cylindrical shell heavy (with internal diameter Φ 500mm, the cylinder liner plate of long 900mm is an example, and weight promptly reaches 300 kilograms, more than 60,000 yuan of cost); The 2nd, liner plate, spheroid and processed material are Hardmetal materials, and its physical and mechanical properties is all identical or close, therefore, pulverized at hard alloy scraps, levigate in, the wearing and tearing of liner plate are also quite big, must frequent change; In addition, traditional mechanical crushing method is to roll repeatedly to grind owing to what adopt, and the rotating speed of cylinder is that weighing apparatus is fixed, speed is non-adjustable.Thereby this type of ball mill exists efficient extremely low, the energy consumption height, liner plate is short service life, and the production of ball mill and use cost are higher relatively, the powder oxygen content height that processes, be difficult to reach the disadvantages such as requirement of production, and be not suitable for large-scale industrialness production the raw meal quality standard.

The purpose of this utility model is at the existing disadvantage of above-mentioned background technology, design a kind of liner plate that do not need, and adopt and add that labor and materials are inhomogeneous, both wear-resisting, impact-resistant material was made roller tube, this cylindrical shell in the course of the work, allow it freely fall the processed material of hammering again after taking spheroid to certain altitude again when grinding rolling, guarantee under the powder quality prerequisite thereby reach, effectively improve the crush efficiency of hard alloy scraps and the life-span of balling drum, cut down the consumption of energy and purposes such as device fabrication and use cost.

Solution of the present utility model is to adopt wearability good, high and the high manganese steel that have work hardening of intensity replaces former drum shell to add the hard alloy lining, cylindrical shell (promptly cancelling valuable carbide alloy liner plate) as a whole, and set up rib along axis direction at the roller tube inwall, this rib can take spheroid to corresponding height under certain rotating speed, freely fall the processed material of hammering then,, thereby realize above-mentioned purpose with raising breaking strength and grinding efficiency.Therefore, the utility model comprises frame, the ball milling roller tube, be located at the left and right end cap at cylindrical shell two ends and loading, unloading material mouth and the seal cover thereof on the end cap located therein, the support roller group that seat holds up on frame and with cylinder, cooling water cavity and the water receiving tank being located at the cooling water pipe on cylinder top, connecting and covering in the outer ring-type water cover of cylinder and surround by this water cover and cylinder outer wall with this water pipe, and comprise motor, belt pulley, driving gear and be fixed on the cylinder big gear ring with this driving gear engagement in interior transmission system; Key is that its roller tube is the monoblock type cylindrical shell that the inwall that adopts high manganese steel to make is provided with rib, and its rib is arranged vertically; This rib both can adopt and embeddedly connect with cylinder inboard wall is fastening, also can be cast into one jointly with cylindrical shell, and transmission system then adopts the adjustable speed transmission.The height of described each rib is generally 15～25mm; Its amount of setting then with 6～10 for well.Each rib both can wholely vertically be provided with, and also can be interrupted setting.

The utility model is by adopting the high manganese steel integral cast to become roller tube, the inwall rib of setting up or with the cylindrical shell one-shot forming or adopt embedded the connection, adopt urceolus to add tungsten carbide button's piece liner plate than conventional ball milling cylinder and do inner core, have simple in structure, handling ease, cost descends 85～90% than the latter, and cylindrical shell weight descends about 15%, prolongs service life more than ten times; Owing to set up rib at cylinder inboard wall, this rib can bring to spheroid the cylinder certain altitude and freely fall the processed material of hammering to increase its breaking strength by it; And adopt adjustable transmission system, both can freely fall its crushing efficiency of raising so that spheroid can remain on ideal height (being generally the critical altitude in the cylindrical shell), can regulate the rotating speed of cylinder again according to the hard alloy scraps disintegrating process according to spheroid size and degree of wear adjusting drum rotation speed.Therefore improved crush efficiency greatly, the process time of comparing every batch of material with background technology is by shortening to more than 500 hours about 45 hours, promptly shortened more than 90%, and in pulverizing process of lapping, prevented secondary pollution effectively, energy consumption reduces significantly, and powder quality all can meet or exceed the standard-required of CEMENTED CARBIDE PRODUCTION with raw meal.Therefore, the utlity model has simple in structurely, manufacturing cost and use cost and energy consumption are low, pulverize, the grinding efficiency height, are particularly suitable for the hard alloy scraps reclaiming and utilize characteristics such as pulverizing in the production process and grinding technics.Also can be used for disintegrating process to ceramic-like and hard brittle metal, nonmetallic materials.

Accompanying drawing and description of drawings

Fig. 1. be the utility model structure and user mode schematic diagram;

Fig. 2. for the A of Fig. 1 to view

Among the figure: 1. frame; 2. support roller seat; 3. support roller; 4. water cover cramp bar; 5. right end cap; 6. seal cover; 7 clamping screws; 8. loading, unloading material mouth; 9. cooling water pipe; 10. water cover; 11. big gear ring; 12. roller tube; 13. rib; 14. left end cap; 15. power transmission shaft; 16,17. belt pulleys; 18. motor; 19. cooling water cavity; 20. water receiving tank; 21. cooling water outlet; 22. tank delivery port; 23. driving gear (pinion).

Embodiment

Present embodiment is an example with the ball mill of 180 liters of cylinder volumes: machine volume (length * wide * height): 1280 * 800 * 1646mm, cylindrical shell 12: maximum outside diameter Φ 615mm, internal diameter Φ 516mm, long 920mm, inwall is established 8 whole reinforcing rods 13, and radians such as interval are arranged; The long 870mm of each rib, high 20mm, wide 18mm, present embodiment cylindrical shell 12 and rib 13 adopt the cast molding of potassium steel Integratively; Motor 18 in the present embodiment transmission system adopts buncher, so that the ball milling cylinder is carried out stepless speed regulation according to technological requirement, and power of motor 4KW, model Y132M-6.All the other comprise frame 1, support roller and wheel seat 3,2, left and right end cap 6,5, and water cooling system and water cover 10 (two covers), big gear ring 11, belt pulley 16,17, driving gear 23 grades are all same with background technology.When the present embodiment ball mill used: hard alloy scraps and abrasive media (as: alcohol etc.) through coarse crushing were all packed into from loading, unloading material mouth 8, and sintered carbide ball is also packed into from this mouth; By seal cover 6, clamping screw 7 its sealing is locked then; Actuating motor 18 and water-cooling system, under the rotating speed that requires, generally reinforcement pulverizing, grinding can obtain granularity less than 50 μ m, the powder that conforms to quality requirements through about 45 hours.Mass output rate can reach 100%.

Claims (3)

1, a kind of in order to pulverize the ball mill of hard alloy scraps, comprise frame, the ball milling roller tube, be located at the left and right end cap at cylindrical shell two ends and loading, unloading material mouth and the seal cover thereof on the end located therein, the support roller group that seat holds up on frame and with cylinder, cooling water cavity and the water receiving tank being located at the cooling water pipe on cylinder top, connecting and covering in the outer ring-type water cover of cylinder and surround by this water cover and cylinder outer wall with this water pipe, and comprise motor, belt pulley, driving gear and be fixed in the transmission system of the big gear ring that meshes with this driving gear on the cylinder; It is characterized in that roller tube is the monoblock type cylindrical shell that the inwall that adopts high manganese steel to make is provided with rib, its rib is arranged vertically; This rib both can adopt and embeddedly connect with cylinder inboard wall is fastening, also can be cast into one jointly with cylindrical shell; Transmission system then adopts the adjustable speed transmission.

2, described by claim 1 in order to pulverize the ball mill of hard alloy scraps, it is characterized in that the height of described each rib is generally 15-25mm; Its amount of setting then with the 6-10 bar for well.

3,, it is characterized in that described each rib both can wholely vertically be provided with, and also can be interrupted setting by claim 1 or 2 described ball mills in order to the pulverizing hard alloy scraps.

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