CN2276373Y - Multistage grinding and graded mill - Google Patents

Abstract

The utility model relates to a novel multistage crushing and graded mill which comprises a motor 1, an arm lifting hammering device 2, a circular disc hammering device 3, an ore grinding slot 4, a material suction blade 5, a material discharge blade 6, a casing 7, a powder selection device 8, an air passage 9, a blower 10 and a cyclone separator 11. A closed ring body which has a first stage crushing area, a second stage crushing area and a graded and product collecting area is formed, and the fragmentation is completed from ores to superfine powder bodies once. Because a structure which is acted by the circular disc hammering device and the ore grinding slot together is adopted in the second stage crushing area, the granularity of products below 10 micrometers reaches to 95 percent, and the working ability and the efficiency are increased largely. A non-metallic material liner plate 12 is additionally arranged on the arm lifting hammering device in the first stage crushing area and on the struck surface of the adjacent casing. The noise, the temperature rise and the metal abrasion loss generated by the equipment are greatly reduced, and the product purity is largely increased.

Description

New multistage is pulverized and the classification grinding machine

The utility model relates to the mineral breaker tool, particularly multistage pulverizing and grader.

A kind of multistage pulverizing and the grader of existing use are to be provided with two to pulverize the district in the casing of an integral body, the configuration grading plant, and connect a high speed air channel, the disposable fragmentation of finishing from the ore to the ultrafine powder.Pulverize the district first, the bulk mineral aggregate is subjected to the impact of the metal tup of rotation at a high speed, between the material and between material and the casing liner plate strong collision, friction takes place, and realizes the middle fragmentation and the fine crushing of material; Second pulverizes the district generally makes the material refinement with the crack realization of meeting narrow and small between the cutterhead of rotation at a high speed and the casing liner plate to impact, shearing and the autogenous grinding of particle.From using, reality reflected following weak point: 1. pulverize the district first, because direct bump between pulverized mineral aggregate that splash and that have powerful kinetic energy and tup and the casing liner plate and friction at a high speed tempestuously, not only cause the huge sound, and the equipment temperature rise is very high, even influences operate as normal; Because the violent friction between ore and the metal is clashed into, tenor increases substantially in the mineral aggregate powder and make, and has a strong impact on product quality (purity) simultaneously.2. pulverize the district second, friction, collision, the shearing of adopting material to be subjected to when process is met the crack by the air-flow suction realize its refinement, owing to meet the crack not do too for a short time, thereby the fine powder ratio is little, and operating efficiency is lower.3. connecting two-stage, to pulverize the casing in district be an integral body, in the time need overhauling first part of pulverizing the district, disassemble one by one the secondary breaker structure on it, air channel etc., takes a lot of work, time-consuming, extremely inconvenient.

The purpose of the utility model is to improve the said equipment, and a kind of novel multistage pulverizing and classification grinding machine are provided.

Technical solution of the present utility model is, with motor 1, stick up arm hammer 2, disk hammer 3, mine grinding groove 4, suction fan blade 5, discharge fan blade 6, casing 7, powder selection device 8, air channel 9, blower fan 10, cyclone separator 11 and constitute one and have the broken district of one-level, secondary and pulverize the closed loop body that collect in district, classification, product.In one-level is pulverized district I, stick up arm and hit device 2 and be vertically set on its bottom, drive by motor 1, stick up arm hammer 2 and near the surface of casing 7 install nonmetallic materials liner plate 12 additional; Secondary is pulverized district II and is positioned on the one-level pulverizing district I, motor 1 is the power transmission shaft 13 driver plate hammers 3 by being positioned at it outside its top, there is a circle can cover its tup around this hammer 3, the toothed mine grinding groove 4 of inwall, there is discharge fan blade 6 top of hammer 3, there is a suction fan blade 5 below, and relative with suction fan blade 5 is pulverizes the charging aperture that secondary that the district communicates is pulverized the district with one-level; Powder selection device 8 is pulverized between the district II cyclone separator 11 at secondary by air channel 9, goes into one-level from the air-supply termination in the air channel 9 that blower fan 10 is extended and pulverizes the district, and return air end and cyclone separator 11 link.Described casing 7 is divided into upper and lower two sections, establishes one between the upper and lower casing and encloses the waist tube 15 that has installed the nonmetallic materials liner plates additional within it, and waist tube 15 joins together with upper and lower casing.During the utility model work, the bulk mineral aggregate at first is subjected to first and pulverizes the bump that sticks up the arm hammer of district's high speed motion, upthrow, and then take place to collide consumingly, to rub with the casing liner plate, simultaneously because the high pressure draught of sending into, mineral aggregate aloft also bumps each other, rubs, and has realized the middle fragmentation and the fine crushing of mineral aggregate.By the breeze of roughing, under the effect of high pressure draught, up enter second and pulverize the district to certain particle size.Because what this place hit exactly the disk hammer stops and the effect of suction fan blade that the breeze that enters can only be forced into mine grinding groove.In groove, breeze is impacted, collides by the tup of high-speed motion, is got to the flank of tooth of mine grinding groove then, and is further broken; Because mineral powder granular differs in size, have different acceleration simultaneously, aloft bump again each other, rub.Breeze is being collided tempestuously, is being sheared, and in the process of autogenous grinding, has realized ultra-fineization of powder.Under the attraction of updraft, powder leaves mine grinding groove, enters sorting unit by the discharge fan blade, and through classification, fines is collected through cyclone separator; The thicker first pulverizing district that returns through the air channel pulverizes again, perhaps is gathered into product separately.

The utility model is owing to have the obstruct of nonmetallic materials liner plate on the metal striking face in the first violent pulverizing district of bump, reduced largely between mineral aggregate and the equipment because the collision and the caused huge noise that rubs, temperature rise and metal abrasion, equipment can be worked under normal condition, and product iron-holder reduction purity is improved greatly; Second pulverizes the district changes and meets the crack to be refined as refinement in the mine grinding groove, has not only improved the dynamics of refinement, has also improved the fine powder ratio greatly, make product granularity at 10 microns to assign 95%; The employing of waist tube on the casing, both be convenient to change damageable zone, also make overhaul of the equipments greatly simple and convenient, as long as unclamp connecting of waist tube and bracing frame, the waist tube falls, parts such as the hammer in one-level pulverizing district, driving member can shift out place under repair by base under the situation of not dismantling air channel and secondary breaker structure.

Below in conjunction with the accompanying drawing embodiment of the present utility model that further has a talk.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model waist tube and support connection place enlarged drawing.

One-level is pulverized on the casing of distinguishing top and is opened charging aperture 16, and arm hammer 2 is stuck up in the bottom vertical setting, and drive motors 1 drives by driving member 17 and sticks up 2 rotations of arm hammer.Casing 7 is divided into upper and lower two sections above sticking up the arm hammer, epimere casing and support 14 link, and waist tube 15 joins upper and lower casing together by being distributed in the some bolts 18 and its locking on the bracing frame 14.Should seal between waist tube 15 and the lower casing.The stricken surface of sticking up arm hammer and near casing thereof, waist tube installs nonmetallic materials liner plate 12 additional, and waist tube place attaches most importance to and hits the district, and its liner plate should be thickeied especially.After secondary pulverizing district can carry out separately, go up again in one-level and pulverize on the casing in district: pulverize district's bottom of shell in secondary and open the charging aperture that communicates with one-level pulverizing district, discharge fan blade 6, disk hammer 3, suction fan blade 5 are installed on the power transmission shaft 13 from top to bottom successively, one end stretches out outside the casing top and drive motors 1 links, and mine grinding groove 4 is fixed on disk hammer 3 casing on every side.Powder selection device 8 is connected secondary by air channel 9 its charging apertures and is pulverized discharge fan blade place in the district, and the fine powder outlet connects cyclone separator 11, and the coarse fodder outlet inserts one-level and pulverizes the district; Perhaps directly become the coarse fodder products export.Stretch into one-level pulverizing district center directly to sticking up arm hammer 2 from the air-supply end in the air channel 9 that blower fan 10 is extended, return air end and cyclone separator 11 link.

Claims (2)

1. a new multistage is pulverized and the classification grinding machine, has motor 1, stick up arm hammer 2, disk hammer 3, mine grinding groove 4, suction fan blade 5, discharge fan blade 6, casing 7, powder selection device 8, air channel 9, blower fan 10, cyclone separator 11, they constitute one and have one-level pulverizing district, secondary is pulverized the district, classification, the closed loop body that product is collected, one-level is pulverized in the district I, stick up arm hammer 2 and be vertically set on its bottom, drive by motor 1, it is characterized in that, the surface of sticking up arm hammer 2 and near casing 7 has nonmetallic materials liner plate 12, secondary is pulverized district I and is positioned on the one-level pulverizing district I, motor 1 is the power transmission shaft 13 driver plate hammers 3 by being positioned at it outside its top, there is a circle can cover its tup around the disk hammer 3, the toothed mine grinding groove 4 of inwall, there is discharge fan blade 6 disk hammering 3 tops, there is suction fan blade 5 below, and relative with the suction fan blade is to pulverize with one-level to distinguish the charging aperture that the secondary that communicates is pulverized the district; Powder selection device 8 usefulness air channels 9 devices are pulverized between district II and the cyclone separator 11 at secondary, go into one-level from the air-supply termination in the air channel 9 that blower fan 10 is extended and pulverize the district, and return air end and cyclone separator 11 link.

2. a kind of new multistage according to claim 1 is pulverized and the classification grinding machine, it is characterized in that described casing 7 is divided into upper and lower two sections, has one between the upper and lower casing and encloses the waist tube 15 that has installed the nonmetallic materials liner plates additional within it.

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