CN202539064U - Heavy-duty multi-stage screening equipment - Google Patents

Abstract

The utility model relates to screening equipment, specifically relates to heavy-duty multi-stage screening equipment, and belongs to the technical field of machinery manufacturing. The equipment comprises a rack, wherein a plurality of screen boxes are arranged on the rack, and a vibration exciter is arranged on each screen box and is directly connected with each screen box through bolts; a plurality of damping springs are also arranged on the rack, and each screen box is positioned on the rack through the damping spring; and secondary damping springs are arranged between the rack and the ground. The screen boxes meet requirements of mechanical vibration and the screening law of multiple materials through large vibration intensity, large amplitude, large inclination and an elastic screen surface; and in the law of motion of the screening process, the screen surface makes linear up-and-down movement, and the good screening processing amount is obtained. A spillplate on the screen box is used as a security guard plate to prevent material dust from flying so as to reduce air pollution and maintain a good working environment, thereby meeting the requirement of environmental protection.

Description

A kind of heavy multistage screening plant

Technical field

The utility model relates to a kind of screening plant, is specifically related to a kind of heavy multistage screening plant, is applicable to the screening of various materials such as ore, coal, and is different according to granular size, and the screening plant that the treating capacity difference is effectively sieved belongs to machinery manufacturing technology field.

Background technology

At present, mainly attach most importance to Jie, jigging, flotation and dry coal preparation of the coal preparation method of domestic employing.China region is wide, rich coal resources, and coal is complete, and ature of coal changes greatly, thereby above coal preparation method all has application.Along with the international energy consumption structure to the adjustment of consumption of coal direction and the enhancing day by day of environmental protection consciousness; The dressing of coal by washing of coal is more and more paid attention in countries in the world; In order further to improve the coal separation effect, each main producing coal country all notice be placed on improve technology, development and employing is novel, on the efficient and high yield washing appliance.In recent years; Along with the increase of washed coal amount, the vibrosieve equipment that coal is used is widely used, and uses maximum screening plants to surely belong to linear vibrating screen; In operations such as the material screening of coal preparation plant, the de-mediated of dewatering, be used widely; Advantages such as, stable performance big because of its oscillation intensity, floor space is little, site examining and repairing is convenient and the unit acquisition expenses is low are favored, but the modernization of industry impels scope of the enterprise to increase, production capacity improves greatly, the efficient high production capacity screening machine of needs is supporting with it, but linear vibrating screen receives the restriction of its structural behaviour; The disposal ability of unit are is little; Screening efficiency is low, can't realize maximizing always, becomes present urgent problem.

Summary of the invention

The purpose of the utility model is in order to overcome the weak point of above-mentioned prior art; A kind of heavy multistage screening plant is provided; This equipment includes a plurality of screen boxs, and each screen box has identical setting angle with frame, and each screen box connects vibrator through bolt; Each vibrator is independently controlled, independent vibration; Reduce the impact of screening plant through the secondary vibration damping to base surface; Satisfy the vibrating machine requirement and to the screening rule of various materials through big oscillation intensity, large amplitude, high inclination-angle and elastic screen surface; In the screening process characteristics of motion; Compass screen surface is rectilinear motion up and down, obtains good screening treating capacity.Equipment as safety guard, prevents the material dust from flying by the spillplate on the screen box, reduces the pollution to air, keeps good working environment, thereby reaches environmental requirement.

The utility model is realized through following technical scheme: a kind of heavy multistage screening plant; This equipment includes frame, it is characterized in that: a plurality of screen boxs are arranged on the described frame, and each screen box has identical setting angle with frame; Each has vibrator above the screen box; Directly be connected with screen box through bolt, each vibrator is independently controlled, independent vibration; Also have a plurality of shock-absorbing springs on the described frame, screen box is seated in above the frame through shock-absorbing spring, and the secondary shock-absorbing spring is arranged between frame and the ground.

Described screen box includes spillplate, sieve plate, vibration body frame, pressing plate and spring base; Described spillplate is fixed on the vibration body frame; Vertical array has some sieve silks on each sieve plate, and the sieve silk is fixed on the sieve guide frame, and the orientation of sieve silk is identical with flow direction of material; Sieve plate directly is fixed on the vibration body frame through pressing plate; Spring base is welded on the vibration body frame, and each spring base is welded into equal angular with the vibration body frame, makes each screen box have identical setting angle.

The utility model has the advantages that: this screening plant has a plurality of screen boxs, and each screen box has identical setting angle with frame, and each screen box connects vibrator through bolt; Each vibrator is independently controlled, and independent vibration has realized the maximization of equipment; High throughput has improved screening efficiency; Main shaking drives screen box by vibrator, carries out the vibration of need of work, and vibrator adopts vibrating motor directly to be fixed on the screen box, has saved common electric machine, has been flexible coupling and electric machine support, has reduced the workload of equipment repair and maintenance, has dwindled taking up room of equipment; The secondary vibration damping makes complete machine in the course of the work, and the vibration force of carrying the basis is reduced, and has also reduced the sound that mechanical impact produces simultaneously, thereby has reduced noise, satisfies environmental requirement.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain:

Fig. 1 is the utility model structural representation;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is screen box, sieve plate and fixed structure sketch map thereof;

Fig. 4 is the vertical view of Fig. 3;

Among the figure: 1, screen box, 101, spillplate, 102, sieve plate, 103, the vibration body frame, 104, pressing plate, 105, spring base, 1021, the sieve silk, 1022, the sieve guide frame, 2, frame, 3, shock-absorbing spring, 4, the secondary shock-absorbing spring, 5, vibrator.

The specific embodiment

As shown in the figure: a kind of heavy multistage screening plant; This equipment includesframe 2, and a plurality of screen boxs 1 are arranged on the described frame, and each screen box has identical setting angle with frame; Each has vibrator 5 above the screen box; Directly be connected with screen box through bolt, each vibrator is independently controlled, independent vibration; Also have a plurality of shock-absorbing springs 3 on the described frame, screen box is seated in above the frame through shock-absorbing spring, and secondary shock-absorbing spring 4 is arranged between frame and the ground.

Described screen box includesspillplate 101,sieve plate 102,vibration body frame 103,pressing plate 104 andspring base 105; Described spillplate is fixed on the vibration body frame; Vertical array has somesieve silks 1021 on each sieve plate, and the sieve silk is fixed on thesieve guide frame 1022, and the orientation of sieve silk is identical with flow direction of material; Sieve plate directly is fixed on the vibration body frame through pressing plate; Spring base is welded on the vibration body frame, and each spring base is welded into equal angular with the vibration body frame, makes each screen box have identical setting angle.

Claims (2)

1. heavy multistage screening plant; This equipment includes frame (2), it is characterized in that: a plurality of screen boxs (1) are arranged on the described frame, and each screen box has identical setting angle with frame; Each has vibrator (5) above the screen box; Directly be connected with screen box through bolt, each vibrator is independently controlled, independent vibration; Also have a plurality of shock-absorbing springs (3) on the described frame, screen box is seated in above the frame through shock-absorbing spring, and secondary shock-absorbing spring (4) is arranged between frame and the ground.

2. a kind of heavy multistage screening plant according to claim 1 is characterized in that: described screen box includes spillplate (101), sieve plate (102), vibration body frame (103), pressing plate (104) and spring base (105); Described spillplate is fixed on the vibration body frame; Vertical array has some sieve silks (1021) on each sieve plate, and the sieve silk is fixed on the sieve guide frame (1022), and the orientation of sieve silk is identical with flow direction of material; Sieve plate directly is fixed on the vibration body frame through pressing plate; Described spring base is welded on the vibration body frame, and each spring base is welded into equal angular with the vibration body frame, makes each screen box have identical setting angle.

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