CN106925019A - Mining integral type double layer dewatering screen - Google Patents

Abstract

The present invention relates to mining integral type double layer dewatering screen, including screen box, vibrator, support, motor and rhone, screen box both sides are provided with two side plates of identical, screen box rear end is provided with tailgate, tailgate is connected with side plate, the first sieve plate and the second sieve plate are provided with screen box, second sieve plate is located at screen box bottom, first sieve plate is located at the second sieve plate top, first sieve plate and the second sieve plate side are each attached on two side plates, first sieve plate and the second sieve plate rear end are fixed on tailgate, first sieve plate front end is provided with the first reclaiming plate, second sieve plate front end is provided with the second reclaiming plate, two side plates are connected by damping spring with support, screen box top is provided with crossbeam, crossbeam two ends are fixed on two side plate tops, vibrator is fixed on crossbeam, screen box lower section is provided with rhone.The beneficial effects of the invention are as follows：Ore can be sieved while dehydration, strengthens the dehydrating effect of mine tailing, improve operating efficiency, rhone collects Wastewater Concentrated or recycling, energy saving.

Description

Integrated double-layer dewatering screen for mining

technical field

The invention belongs to the field of screening equipment, in particular to an integrated double-layer dewatering screen for mining.

Background technique

my country's coal demand is increasing year by year, which promotes the improvement of coal mining mechanization, the deepening of mining depth, and the mining of some coal seams and coal fields with intersecting coal quality. At the same time, the proportion of fine and ultrafine particles in coal also increases. The production practice shows that the sorting density of materials increases with the decrease of particle size, and materials have obvious objective laws of layering by particle size in addition to layering by density. The use of dewatering screens for tailings dry discharge is the most advanced tailings treatment new technology at home and abroad in recent years. It means that after the tailings discharged from the mineral processing process are concentrated, they are further concentrated and dehydrated by the dewatering screen to form a water content of 12-15%. Filter cake, filter cake can be stockpiled in the site, which has been applied and promoted in domestic mines. The main function of the dewatering screen is dehydration, desliming, and deintermediation. It can be used for sand washing in sand and gravel plants, recovery of coal slime in coal preparation plants, dry discharge of tailings in mineral processing plants, etc. Coal slime dewatering screen, tailings dewatering screen, etc. However, due to the deposition of a large number of slag particles, especially when there are many fine particles and fine particles, the penetration of water is hindered to a certain extent, and the effect of complete dehydration cannot be achieved.

Contents of the invention

In order to solve the above technical problems, the present invention provides an integrated double-layer dewatering screen for mining.

The technical solution adopted in the present invention is: an integrated double-layer dewatering screen for mining, including a screen box, a vibrator, a motor and a drainage tank. The two sides of the screen box are provided with the same two side plates, and the rear end of the screen box is provided with a tail The tail plate is connected with the side plate, the first sieve plate and the second sieve plate are arranged in the screen box, the second sieve plate is located at the bottom of the screen box, the first sieve plate is located above the second sieve plate, the first sieve plate and the The sides of the two sieve plates are fixed on the two side plates, the rear ends of the first sieve plate and the second sieve plate are fixed on the tail plate, the front end of the first sieve plate is equipped with a first discharge plate, and the front end of the second sieve plate is set There is a second discharge plate, and the two side plates are connected to the bracket through shock-absorbing springs. There is a beam above the screen box, and the two ends of the beam are fixed on the top of the two side plates. The exciter is fixed on the beam. There is a motor and a drainage groove under the screen box.

Preferably, the aperture of the first sieve plate is larger than the aperture of the second sieve plate.

Preferably, the first discharge plate is longer than the second discharge plate.

Preferably, the angle formed between the tail plate and the second sieve plate is in the range of 90° to 130°.

The advantages and positive effects of the present invention are: the ore can be screened during dehydration, the dehydration effect of the tailings can be strengthened, the work efficiency can be improved, the waste water collected by the drainage tank can be centrally treated or recycled, and the energy can be saved.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the picture:

1. Side panel 2. Tail panel 31. First sieve panel

32. The first discharge plate 33. The second sieve plate 34. The second discharge plate

4. Beam 5. Vibrator 6. Damping spring

7. Drainage tank

detailed description

An embodiment of the present invention will be described below in conjunction with the accompanying drawings.

As shown in Figure 1, the present invention relates to an integrated double-layer dewatering screen for mining, including a screen box, a vibrator 5, a motor and a drainage tank 7, and two identical side plates 1 are arranged on both sides of the screen box, and the screen box The end is provided with a tail plate 2, and the tail plate 2 is connected with the side plate 1 to form the main body of the screen box. The first screen plate 31 and the second screen plate 33 are arranged in the screen box. The second screen plate 33 is located at the bottom of the screen box. The sieve plate 31 is located above the second sieve plate 32, the mesh aperture of the first sieve plate 31 is larger than that of the second sieve plate 33, and the sides of the first sieve plate 31 and the second sieve plate 33 are fixed on the two side plates 1 Above, the rear ends of the first sieve plate 31 and the second sieve plate 33 are fixed on the tailgate 2, the tailings are screened for the first time through the first sieve plate 31, and the dehydration step is carried out through the second sieve plate 33, the tailgate 2 The angle formed with the second sieve plate 33 ranges from 90° to 130°. The screen and dehydration effect of the tail plate 2 with an inclined angle is better, and it is not easy to leave cleaning dead ends, which is conducive to equipment maintenance. The front end of the first sieve plate 31 A first discharge plate 32 is provided for the outlet of the first screening, and a second discharge plate 34 is provided at the front end of the second sieve plate 33, which is used for the outlet of the dehydrated tailings after screening. The discharge plate 32 is longer than the second discharge plate 34. This structure can ensure that the two types of products after screening can be transported out properly. The two side plates 1 are connected to the bracket through the shock-absorbing spring 5, and a beam is arranged above the screen box. 4. The two ends of the beam 4 are fixed on the upper part of the two side plates 1, the vibrator 5 is fixed on the beam 4, the vibrator 5 is connected with a motor, and the vibrator 5 includes two positive and negative vibrator, and two opposite vibrator 5. Synchronous and reverse operation, the centrifugal force generated by the two sets of eccentric masses superimposes along the component force in the vibration direction, and the reverse centrifugal force cancels, thus forming a single exciting vibration along the vibration direction, making the screen box reciprocating linear motion to achieve screening and dehydration The bottom of the sieve box is provided with drainage groove 7, and the water taken off is treated centrally, or can be recycled and reused.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (4)

1. mining integral type double layer dewatering screen, it is characterised in that：Including screen box, vibrator, motor and Rhone, the screen box both sides are provided with two side plates of identical, and the screen box rear end is provided with tailgate, The tailgate is connected with the side plate, and the first sieve plate and the second sieve plate, institute are provided with the screen box The second sieve plate is stated positioned at the screen box bottom, first sieve plate is located at second sieve plate top, First sieve plate is each attached on two side plates with the second sieve plate side, and described One sieve plate is fixed on the tailgate with the second sieve plate rear end, and the first sieve plate front end sets There is the first reclaiming plate, the second sieve plate front end is provided with the second reclaiming plate, and two side plates lead to Cross damping spring to be connected with the support, the screen box top is provided with crossbeam, the crossbeam two ends Two side plate tops are fixed on, the vibrator is fixed on the crossbeam, the exciting Device is connected with the motor, and the screen box lower section is provided with the rhone.

2. mining integral type double layer dewatering screen according to claim 1, it is characterised in that：It is described First sieve plate mesh size is more than the second sieve plate mesh size.

3. mining integral type double layer dewatering screen according to claim 1, it is characterised in that：It is described First reclaiming plate is longer than second reclaiming plate.

4. mining integral type double layer dewatering screen according to claim 1, it is characterised in that：It is described It is 90~130 ° that tailgate forms angular range with second sieve plate.