Summary of the invention
It is an object of the invention to provide a kind of bentonite in powder crushing device, by pulverizing, alternate cycles of sieving, good crushing effect, the bentonite pulverizing the particle diameter that achieves the goal is collected in time, improve crush efficiency, reduce and pulverize cost.
nullIn order to achieve the above object,The present invention adopts the following technical scheme that: a kind of bentonite in powder crushing device,Including feeding structure、The coarse pulverization structure being connected with described feeding structure and the finely divided structure being connected with described coarse pulverization structure,Described coarse pulverization structure includes coarse pulverization tank,Described coarse pulverization tank is provided with charging aperture and is positioned at the discharging opening of described coarse pulverization pot bottom,It is characterized in that,It is provided with the first crushing part in described coarse pulverization tank、It is arranged on the screening part below described first crushing part,Described screening part includes the base being fixed on described coarse pulverization tank、The grade screening structure being arranged on described base、Drive the actuator that described grade screening structure rotates,Described grade screening structure includes surrounding columned one-level screening net and being arranged in the cylinder that described one-level screening net surrounds、And surround columned two grades of screening nets and be arranged on the suction tube in the cylinder that described two grades of screening nets surround.
Technique scheme, thick bentonite is pulverized successively through coarse pulverization structure, finely divided structure, coarse pulverization structure is pulverized, is sieved, the achieve the goal bentonite of particle diameter from postsearch screening net filtration, reclaims through suction tube and collects, and particle diameter is unsatisfactory for requiring, net, the screening of two grades of screening nets is screened through one-level, fall in tank, reclaim through discharging opening, again put into pulverizing;Existing grinding is all to be crushed to purpose particle diameter together, and another rising is reclaimed, and grinding efficiency is low, this design of this programme, can reclaim the target bentonite of pulverizing in time, improves grinding efficiency, it is ensured that Grinding Quality.
As preferably, described finely divided structure includes fine grinding tank, described fine grinding tank is provided with the feeding mouth being connected with described coarse pulverization tank and is positioned at the discharge gate of described fine grinding pot bottom, be provided with in fine grinding tank the mixing roll by the driven by motor being arranged on outside described fine grinding tank, around described mixing roll circumferencial direction and and the roll surface of described mixing roll between the bull ring of formation abrasive lapping passage, the feeding mouth of described fine grinding tank is directed at the upper end open of described bull ring, and described grinding passage includes several milling zones spaced and expands storing area.
The finely divided structure of this programme, by the improvement between mixing roll and bull ring, arranges the bentonite to different-grain diameter size and is ground district, be progressively ground bentonite, improves grinding efficiency.
As preferably, the cylindrical outer surface that described one-level screening net surrounds is provided with some demarcation strips of horizontally set, and described demarcation strip is along the circumferencial direction distribution of described one-level screening net.Ensure purpose particle diameter bentonite can fully be recovered through screening, be unlikely to be not able to do in time through first screening net just fall into discharging opening.
As preferably, described screening part also includes that one end is fixed on described coarse pulverization tank, the other end penetrates the supporting spring in the cylinder that described two grades of screening nets surround from the end of described two grades of screening nets, and the acting surface of described supporting spring is upward.Supporting spring is set, it is ensured that reaching to collect the bentonite required can at utmost be collected, and will not repeat to fall into discharging opening.
As preferably, along the length direction of described supporting spring, the middle part indent of described supporting spring acting surface forms collector groove, more convenient collection.
As preferably, the discharge gate of described coarse pulverization pot bottom connects described feeding structure and/or described first crushing part, again puts into pulverizing.
As preferably, the two panels that described first crushing part includes being arranged on a pair compression roller above described screening part, pass between two described compression rollers has the extruding crushing piece of certain flexibility, forms, between two panels extruding crushing piece, the material channel passed through for material.By compression roller, by extruding crushing piece, material is pulverized, crushing effect can be improved.
As preferably, described material channel includes leading to the discharging section below the entrance outside described coarse pulverization tank, the extruded segment between two described compression rollers and described extruded segment.
As preferably, in described extruded segment, it is enclosed with pulverizing steel ball, improves crushing effect.
As preferably, from described extruded segment to described discharging section, the particle diameter of described pulverizing steel ball is gradually reduced, and crushing effect is more preferable.
As preferably, described entrance is provided with vibrations and pulverizes rod, improves crush efficiency, improves crushing effect.
As preferably, the width of described milling zone is gradually reduced from the end of the base portion of described mixing roll to described mixing roll, is ground bentonite step by step, improves efficiency.
As preferably, the volume of described expansion storing area is gradually increased from the end of the base portion of described mixing roll to described mixing roll, because the thinnest grinding space is the least, grinds the slowest, expanding storing area, to go out the material that grinds of upper level piled up the most, need bigger space to store.
As preferably, the inner surface of described bull ring arranges lobe, forms described milling zone between the roll surface of described lobe and described mixing roll.
As preferably, end from the base portion of described mixing roll to described mixing roll, the width of described milling zone reduces 0.1-0.5mm every time, the material that upper level milling zone is ground out by next stage milling zone is ground, this difference width design, can just reach grinding effect, be unlikely to again width design overstocked, causing grinding efficiency to reduce, the volume of previous described expansion storing area is volume 0.6-0.9 times that later expands storing area.
As preferably, the position that described mixing roll is corresponding in described expansion storing area, inner groovy is set, shortens the height expanding storing area, make full use of the mixing roll of limited height.
As preferably, it was provided with sieve structure below the lower ending opening of described bull ring, described sieve structure excessively includes the two pieces of baffle plates that screen cloth and two ends are fixed on the tank skin of described fine grinding tank excessively being arranged on the tank skin of described fine grinding tank and being driven by the motor two being arranged on outside described fine grinding tank rotation, described screen cloth of crossing surrounds cylindrical-shaped structure, contacts between the bottom of described baffle plate with the described outer surface crossing screen cloth.
As preferably, described sieve structure excessively also includes being arranged on the described splicing plate that screen cloth surrounds in cylindrical-shaped structure excessively, and one end of described splicing plate is fixed on the tank skin of described fine grinding tank, and the other end of described splicing plate passed screen cloth and surrounds the end of cylindrical-shaped structure.
As preferably, two pieces of described baffle plates and described mistake surround, between screen cloth, the collecting tank being collected the material being not reaching to particle diameter, and described collecting tank communicates with the outlet on the tank skin being arranged on described fine grinding tank.
As preferably, described splicing plate is provided with the negative pressure straw communicated with described discharge gate.
By implementing technique scheme, the present invention has following beneficial effect: the present invention uses coarse pulverization and fine grinding cooperation to pulverize bentonite levigate, by pulverizing, alternate cycles of sieving, good crushing effect, the bentonite pulverizing the particle diameter that achieves the goal is collected in time, improves crush efficiency, reduce and pulverize cost, fine grinding structure uses the milling zone of different-grain diameter progressively to grind, and improves grinding efficiency.
Embodiment 3:
A kind of bentonite in powder crushing device, including feeding structure, the coarse pulverization structure being connected with described feeding structure and the finely divided structure being connected with described coarse pulverization structure, described coarse pulverization structure includes coarse pulverization tank 1, described coarse pulverization tank 1 is provided with charging aperture 101 and is positioned at the discharging opening 102 bottom coarse pulverization tank 1, the first crushing part 11 it is provided with in coarse pulverization tank 1, it is arranged on the screening part 12 below the first crushing part 11, first crushing part 11 includes being arranged on a pair compression roller 111 above described screening part 12, the two panels extruding crushing piece 112 passed between two described compression rollers 111, form, between two panels extruding crushing piece 112, the material channel 113 passed through for material.
Screening part 12 includes the base 122 being fixed on described coarse pulverization tank 1 tank body, be arranged on described base grade screening structure 121, drive the actuator 123 that described grade screening structure 121 rotates, described grade screening structure 121 include surrounding columned one-level screening net 1211 and be arranged in the cylinder that described one-level screening net 1211 surrounds and surround columned two grades of screening nets 1212 and be arranged on the suction tubes 1213 in the cylinder that described two grades of screening nets 1212 surround.The cylindrical outer surface that one-level screening net 1211 surrounds is provided with some demarcation strips 1214 of horizontally set, and general 3-4, the present embodiment is 3;Described demarcation strip 1214 is along the circumferencial direction distribution of described one-level screening net 1211.
Finely divided structure includes fine grinding tank, described fine grinding tank is provided with the feeding mouth being connected with described coarse pulverization tank and is positioned at the discharge gate of described fine grinding pot bottom, it is provided with by the mixing roll of the driven by motor being arranged on outside described fine grinding tank in fine grinding tank, around described mixing roll circumferencial direction and and the roll surface of described mixing roll between the bull ring of formation abrasive lapping passage, the feeding mouth of described fine grinding tank is directed at the upper end open of described bull ring, described grinding passage includes several milling zones spaced and expands storing area, the inner surface of bull ring arranges lobe, described milling zone is formed between lobe and the roll surface of mixing roll.The width of milling zone is gradually reduced from the end of the base portion of described mixing roll to described mixing roll, reduce 0.3mm every time, the volume expanding storing area is gradually increased from the end of the base portion of described mixing roll to described mixing roll, and the volume of previous described expansion storing area is the volume 0.6 times that later expands storing area.
It was provided with sieve structure below the lower ending opening of bull ring, described sieve structure excessively includes the two pieces of baffle plates that screen cloth and two ends are fixed on the tank skin of described fine grinding tank excessively being arranged on the tank skin of described fine grinding tank and being driven by the motor two being arranged on outside described fine grinding tank rotation, described screen cloth of crossing surrounds cylindrical-shaped structure, the bottom of described baffle plate is provided with rubber wear-resisting layer, contacts connection with the described outer surface crossing screen cloth.