Impurity removal device for phosphogypsum

Abstract

An impurity removing device for ardealite comprises a rack, a mesh belt conveyor, a feeding hopper, a discharging hopper, a feeding belt conveyor, a discharging belt conveyor and a plurality of vibration devices are installed on the rack, the feeding hopper and the feeding belt conveyor are arranged above the mesh belt conveyor, the discharging hopper is arranged in the mesh belt conveyor, and the vibration devices are arranged in the discharging belt conveyor. The discharging belt conveyor is positioned below the discharging hopper; the vibrating device comprises a plurality of shock absorbers fixedly connected to the rack, a support is installed on the shock absorbers, a plurality of vibrating rollers are assembled on the support, a vibrator is installed on the support, and the conveying mesh belt is arranged on the vibrating rollers. According to the device, large-particle impurities in ardealite can be efficiently removed, and the phenomenon of hole blockage is avoided.

Description

Technical Field

[0001] The utility model relates to an impurity removing device for phosphogypsum. Background Art

[0002] Phosphogypsum is a solid waste discharged during the production of phosphate fertilizer and phosphoric acid. It is a powdery material that is usually piled in open-air sites. It not only occupies a large amount of land, but also has a certain impact on the environment. Therefore, it is necessary to make rational use of phosphogypsum. The phosphogypsum shipped back from the slag yard contains some large particles of solid impurities, which will affect the recycling of phosphogypsum. In order to solve the impurity problem, corresponding technical solutions have also been proposed in existing patents, such as "CN213161717U, phosphogypsum recycling and impurity removal device". It uses a rotating scraper with holes to remove impurities from the phosphogypsum, but the phosphogypsum shipped back is sometimes in a wet state. The wet phosphogypsum is very easy to block the plate holes, resulting in the impurity removal device being unable to remove impurities. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an impurity removal device for phosphogypsum, which can efficiently remove large particle impurities in the phosphogypsum without causing hole blocking.

[0004] A device for removing impurities from phosphogypsum comprises a frame, on which a mesh belt conveyor, a feed hopper, a discharge hopper, a feed belt conveyor, a discharge belt conveyor and a plurality of vibration devices are mounted, the feed hopper and the feed belt conveyor are arranged above the mesh belt conveyor, the discharge hopper is arranged inside the mesh belt conveyor, and the discharge belt conveyor is located below the discharge hopper; the vibration device comprises a plurality of shock absorbers fixedly connected to the frame, a bracket is mounted on the shock absorber, a plurality of vibration rollers are assembled on the bracket, a vibrator is mounted on the bracket, and a conveying mesh belt is arranged on the vibration roller.

[0005] It also includes a water tank, in which the lower end of the mesh belt conveyor is arranged, and a plurality of brush plates are fixedly connected in the water tank, and the conveying mesh belt is in contact with the brush plates.

[0006] A plurality of air knives are installed on the frame, and the blowing direction of the air knives is toward the conveyor belt.

[0007] Two baffles are fixedly connected to the frame, and the upper mesh belt in the mesh belt conveyor is located between the two baffles.

[0008] The beneficial effects of the utility model are as follows: after the feed belt conveyor feeds the phosphogypsum onto the mesh belt conveyor, the mesh belt conveyor removes impurities from the phosphogypsum, and after the impurities are removed, the mesh belt enters the water tank and is brushed to remove the phosphogypsum adhering to the mesh belt, thereby effectively avoiding the phosphogypsum impurity removal mesh from being blocked, thereby ensuring the impurity removal effect of the phosphogypsum. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings:

[0010] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0011] Figure 2 It is the left view of the utility model.

[0012] Figure 3 This is a schematic diagram of the structure of the vibration device of the utility model.

[0013] Figure 4 It is a schematic diagram of the structure of the wind knife of the utility model.

[0014] In the figure: mesh belt conveyor 100, driven sprocket 101, tensioning sprocket 102, redirecting sprocket 103, conveying mesh belt 104, driving sprocket 105; vibration device 200, bracket 201, shock absorber 202, vibrator 203, rubber vibration roller 204; brush plate 110, frame 120, air knife 130, discharge hopper 300, discharge belt conveyor 400, baffle 500, feed hopper 600, feed belt conveyor 700, water inlet pipe 801, slurry discharge pipe 802, water trough 900. DETAILED DESCRIPTION

[0015] like Figures 1 to 4 As shown, a device for removing impurities from phosphogypsum comprises a frame 120, on which a mesh belt conveyor 100, a feed hopper 600, a discharge hopper 300, a feed belt conveyor 700, a discharge belt conveyor 400 and a plurality of vibrating devices 200 are installed, the mesh belt conveyor 100 comprises a conveying mesh belt 104, a driving sprocket 105, a driven sprocket 101, a tensioning sprocket 102 and two redirecting sprockets 103, the feed hopper 600 and the feed belt conveyor 700 are mounted. It is arranged above the mesh belt conveyor 100, the discharge hopper 300 is arranged in the mesh belt conveyor 100, and the discharge belt conveyor 400 is located below the discharge hopper 300; the vibration device 200 includes a plurality of shock absorbers 202 fixedly connected to the frame 120, a bracket 201 is installed on the shock absorber 202, a plurality of rubber vibration rollers 204 are equipped on the bracket 201, a vibrator 203 is installed on the bracket 201, and the conveying mesh belt 104 is arranged on the vibration roller 204.

[0016] It also includes a water trough 900. The lower end of the mesh belt conveyor 100 is arranged in the water trough 900. A plurality of brush plates 110 are fixedly connected in the water trough 900. The mesh belt in the mesh belt conveyor 100 is in contact with the brush plate 110. A water inlet pipe is provided on the water trough 900. The bottom plate of the water trough 900 is connected to the sedimentation tank through a slurry discharge pipe. When the phosphogypsum is removed from impurities, the water inlet pipe 801 continuously sends the precipitated water into the water trough 900, and the slurry discharge pipe 802 continuously discharges the water into the sedimentation tank to keep the water inlet and water outlet consistent, thereby avoiding the accumulation of mud in the water trough 900.

[0017] The working process of the utility model is:

[0018] The feed belt conveyor 700 feeds the phosphogypsum into the feed hopper 600, and the feed hopper 600 guides the phosphogypsum onto the conveyor mesh belt 104. During the process of the conveyor mesh belt 104 conveying the phosphogypsum, the vibrator 203 drives the rubber vibration roller 204 to vibrate, and the rubber vibration roller 204 drives the conveyor mesh belt 104 to vibrate. The vibrating conveyor mesh belt 104 vibrates the small particles of phosphogypsum into the discharge hopper 300. The small particles of phosphogypsum entering the discharge hopper 300 are conveyed to the designated location by the discharge belt. At the same time, large particles of impurities larger than the mesh of the conveyor mesh belt 104 are output by the rotating conveyor mesh belt 104 to one side of the water tank 900 for stacking.

[0019] After the impurities are removed, the conveyor mesh belt 104 enters the water tank 900 as it rotates and is scrubbed by the brush plate 110 to remove the phosphogypsum adhering to the conveyor mesh belt 104, thereby preventing the mesh of the conveyor mesh belt 104 from being blocked.

[0020] A plurality of air knives 130 are installed on the frame 120, and the blowing direction of the air knives 130 is toward the conveyor mesh belt 104 in the mesh belt conveyor 100. The conveyor mesh belt 104 washed with phosphogypsum enters the air knives 130, and the air knives 130 remove the water drops on the conveyor mesh belt 104, thereby reducing the adhesion amount of phosphogypsum.

[0021] Two baffles 500 are fixedly connected to the frame 120, and the upper mesh belt in the mesh belt conveyor is located between the two baffles 500. The two baffles 500 prevent phosphogypsum from flowing out from both sides of the conveyor mesh belt 104.

[0022] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A device for removing impurities from phosphogypsum, comprising a frame (120), characterized in that: A mesh belt conveyor (100), a feed hopper (600), a discharge hopper (300), a feed belt conveyor (700), a discharge belt conveyor (400) and a plurality of vibration devices (200) are installed on a frame (120); the feed hopper (600) and the feed belt conveyor (700) are arranged above the mesh belt conveyor (100); the discharge hopper (300) is arranged inside the mesh belt conveyor (100); and the discharge belt conveyor (400) is located below the discharge hopper (300); the vibration device (200) comprises a plurality of shock absorbers (202) fixedly connected to the frame (120); a bracket (201) is installed on the shock absorber (202); a plurality of vibration rollers (204) are mounted on the bracket (201); a vibrator (203) is installed on the bracket (201); and a conveying mesh belt (104) in the mesh belt conveyor (100) is arranged on the vibration roller (204).

2. The impurity removal device for phosphogypsum according to claim 1, characterized in that: It also includes a water tank (900), the lower end of the mesh belt conveyor (100) is arranged in the water tank (900), a plurality of brush plates (110) are fixedly connected in the water tank (900), and the conveying mesh belt (104) is in contact with the brush plates (110).

3. The impurity removal device for phosphogypsum according to claim 2, characterized in that: A plurality of air knives (130) are installed on the frame (120), and the blowing direction of the air knives (130) is toward the conveyor mesh belt (104).

4. The impurity removal device for phosphogypsum according to any one of claims 1 to 3, characterized in that: Two baffles (500) are fixedly connected to the frame (120), and the upper mesh belt in the mesh belt conveyor is located between the two baffles (500).

Images