A slurry dewatering and screening device

Abstract

The present invention relates to the technical field of slurry screening, and in particular to a slurry dehydration and screening device. The present invention provides a slurry dehydration and screening device, including an arc screen, an arc screen frame, side guard plates, a rail seat, a wedge and a wedge pressing angle steel; the arc screen is composed of a plurality of sieve pieces spliced ​​together; the sieve piece is composed of a plurality of sieve plates spliced ​​together; the sieve plates are staggered with the adjacent sieve plates; the splicing area of ​​the sieve plates corresponds to the screening area of ​​the next row of sieve plates; the sieve pieces are buckled with the rail seat; the rail seat is fixedly connected with the arc screen frame; the sieve plates are made of polyurethane material; the side guard plates are placed on both sides of the arc screen; the lower arc surface of the side guard plates is pressed against the arc screen by the wedge and the wedge pressing angle steel. The slurry dehydration and screening device of the present invention can replace the severely worn positions of the arc screen separately, and the replacement is convenient and quick, and easy to install.

Description

Technical Field

[0001] The invention relates to the technical field of ore pulp screening, in particular to an ore pulp dehydration and screening device. Background Art

[0002] The existing curved screen has a stainless steel slit screen as the screening part, and the entire curved screen is composed of 1 or 2 screens. The slurry enters the curved screen from the feed end, and the slurry passes through the curved screen surface at the initial feed velocity and the height of gravity, and is dehydrated through the screen holes. Currently, stainless steel slit screens are used, which are inconvenient to replace, wear unevenly, and wear quickly. Since it is difficult to feed the slurry evenly when it enters the screen, the wear of the screen is uneven, and the feed end of the screen is the main dehydration area. The closer to the discharge end, the less wear there is. However, since it is composed of a whole screen, if one part is worn out, the whole screen needs to be replaced. Summary of the invention

[0003] The object of the present invention is to provide a slurry dewatering and screening device, which is wear-resistant, can be replaced according to the wear area, and is easy to install.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a slurry dewatering and screening device, comprising an arc screen, an arc screen frame, side guard plates, a rail seat, a wedge and a wedge pressing angle steel; the arc screen is composed of a plurality of screen pieces spliced ​​together; the screen pieces are composed of a plurality of screen plates spliced ​​together; the screen plates are staggered with the adjacent screen plates; the screen pieces are buckled with the rail seat; the rail seat is fixedly connected with the arc screen frame; the screen plate is made of polyurethane material; the side guard plates are placed on both sides of the arc screen; the lower arc surface of the side guard plates presses the arc screen tightly through the wedge and the wedge pressing angle steel.

[0006] Preferably, each row of sieve holes on the material facing surface of the sieve plate is provided with a groove.

[0007] Preferably, the size of the groove gradually decreases from the feeding end to the discharging end until the groove is eliminated.

[0008] Preferably, the splicing area between the sieve plates forms a splicing blind area; the splicing blind area is fixedly connected to the dividing block.

[0009] Preferably, the dividing block is detachably connected to the splicing blind area.

[0010] Preferably, self-tapping screws are embedded in the dividing block; the dividing block is connected to the splicing blind area via the self-tapping screws.

[0011] Preferably, the dividing block is made of polyurethane material.

[0012] Preferably, a lining plate is provided in the rail seat; bolts are provided on the lining plate; and the rail seat is connected to the frame via the bolts.

[0013] Preferably, the rail seat is made of polyurethane material.

[0014] Preferably, the arc-shaped screen frame is made by welding stainless steel profiles.

[0015] The present invention adopts a plurality of screen pieces to splice into an arc-shaped screen, and the screen piece is composed of a plurality of screen plates spliced ​​together. The position with serious wear can be replaced separately, and the replacement is convenient and quick.

[0016] In the present invention, there will be a blind area in the splicing between each screen plate. In addition to using a dividing block that is detachably connected to the blind area to guide the slurry in the blind area to the screening area, the staggered distribution of two adjacent rows of screen plates can more effectively solve the problem of the slurry passing through the blind area not being screened.

[0017] Each row of holes on the material-facing surface of the screen plate of the present invention is provided with grooves, and the size of the grooves gradually decreases from the feed end to the discharge end until the grooves are eliminated, so that the amount of perforated slurry can be increased when the slurry passes through the arc screen.

[0018] The screen plate, rail seat and material dividing block of the present invention are all made of polyurethane material. Since polyurethane has good wear resistance, it can effectively reduce the wear of the slurry on the curved screen surface, thereby reducing the waste of the curved screen surface.

[0019] In the present invention, side guard plates are arranged at both side plates of the curved screen, the purpose of which is to protect the side plates at the left and right ends of the curved screen from being eroded by slurry, and at the same time, the pressing force of the wedge can be transmitted to the curved screen frame, so that the curved screen is firmly installed; the wedge and the wedge pressing angle steel work together to press the side guard plates, and this installation method is also convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the curved screen;

[0021] Figure 2 It is the left side view of the side guard plate;

[0022] Figure 3 This is a schematic diagram of the curved screen and side guard plates after installation;

[0023] Figure 4 is a schematic diagram of the groove;

[0024] Figure 5 It is a schematic diagram of the material distribution block;

[0025] Figure 6 It is a schematic diagram of the rail seat;

[0026] Figure 7is a schematic diagram of the sieve plate;

[0027] Figure 8 is a schematic diagram of the screen;

[0028] Fig. 9 Schematic diagram of the wedge.

[0029] Reference numerals

[0030] In the figure, 1. curved screen, 2. curved screen frame, 3. screen piece, 4. screen plate, 5. side guard plate, 6. rail seat, 7. material dividing block, 8. wedge, 9. wedge pressing angle steel, 10. splicing blind area, 11. bolt, 12. self-tapping screw, 13. groove DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] like Figure 1-3 and Figure 7-8 As shown, the present invention provides a slurry dewatering and screening device, comprising an arc screen 1, an arc screen frame 2, side guard plates 5, a rail seat 6, wedges 8 and wedge pressing angle steels 9; the arc screen 1 is composed of a plurality of screen pieces 3 spliced ​​together; the screen piece 3 is composed of a plurality of screen plates 4 spliced ​​together; the screen plates 4 are staggered with the adjacent screen plates 4; the screen pieces 3 are buckled with the rail seat 6; the rail seat 6 is fixedly connected to the arc screen frame 2; the screen plates 4 are made of polyurethane material; the side guard plates 5 are placed on both sides of the arc screen 1; the lower arc surface of the side guard plates 5 presses the arc screen 1 through the wedges 8 and the wedge pressing angle steels 9.

[0033] In the present invention, the screen plates can be spliced ​​according to production needs and are not limited to the splicing form of the present invention. The present invention is only a preferred splicing method.

[0034] As an embodiment of the present invention, Figure 4 As shown, each row of sieve holes on the material-facing surface of the sieve plate 3 is provided with a groove 13. In this embodiment, the groove 13 is formed by each row of sieve holes on the material-facing surface of the sieve plate 3 being inclined downward.

[0035] As an embodiment of the present invention, Figure 4 As shown, the size of the groove 13 gradually decreases from the feeding end to the discharging end until the groove is eliminated. It should be noted that the change in the size of the groove 13 will be adjusted according to production needs. For example, the size of the groove 13 on the same sieve plate 4 is the same, and the size of the groove 13 on different sieve plates of different sieve sheets 3 of the curved screen is different, which can be designed according to production needs.

[0036] As an embodiment of the present invention, Figure 1As shown, the splicing area of ​​the sieve plate 4 and the sieve plate forms a splicing blind area 10; the splicing blind area 10 is fixedly connected to the dividing block 7.

[0037] As an embodiment of the present invention, the dividing block 7 is detachably connected to the splicing blind area 10. Figure 5 As shown, a self-tapping screw 12 is embedded in the dividing block 7; the dividing block 7 is connected to the splicing blind area 10 through the self-tapping screw 12; the dividing block 7 is made of polyurethane material. It should be noted that the installation position of the dividing block 7 is not limited to the splicing blind area 10, and the dividing block 7 can be directly installed by screwing the self-tapping screw 12 into the required position.

[0038] As an embodiment of the present invention, Figure 6 As shown, a lining plate is provided inside the rail seat 6; bolts 11 are provided on the lining plate; the rail seat 6 is connected to the arc screen frame 2 via the bolts 11; and the rail seat 6 is made of polyurethane material.

[0039] As an embodiment of the present invention, the arc-shaped screen frame 2 is made of stainless steel profiles by welding.

[0040] The present invention also provides the installation steps of the slurry dewatering and screening device, such as Figure 1-7 As shown, the slurry dewatering and screening device includes an arc screen, an arc screen frame, side guard plates, a rail seat, a wedge and a wedge pressing angle steel; during installation, firstly, the rail seat 6 is connected to the arc screen frame 2 by bolts 11; secondly, the screen piece 3 or the screen plate 4 of the arc screen 1 is buckled with the rail seat 6, and it is determined whether the dividing block 7 needs to be installed according to production needs. If the dividing block 7 needs to be installed, it is only necessary to screw the dividing block 7 directly into the splicing blind area 10 or other positions by self-tapping screws 12; finally, the side guard plates 5 are installed, and the side guard plates 5 are respectively installed on both sides of the arc screen 1, and the arc screen 1 is pressed tightly with the lower arc surface of the side guard plates 5, and the wedges 8 are inserted into the space between the side guard plates 5 and the wedge pressing angle steel 9. The more wedges 8 are inserted, the greater the force between the inclined surface of the wedge 8 and the inclined surface of the side guard plates 5, and the tighter the side guard plates 5 are pressed. In this way, the side guard plates 5 are fixed on both sides of the arc screen 1 and have a differential pressing effect on the arc screen 1. It should be noted that if Fig. 9 As shown, the wedge has a bevel, and the bevel angle is consistent with the bevel angle of the side guard plate.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. It should be pointed out that for ordinary technicians in this field, several improvements and modifications can be made without departing from the inventive concept of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A slurry dewatering and screening device, characterized in that: It comprises an arc screen, an arc screen frame, side guard plates, a rail seat, a wedge and a wedge pressing angle steel; the arc screen is composed of a plurality of screen pieces spliced ​​together; the screen piece is composed of a plurality of screen plates spliced ​​together; the screen plates are arranged staggered with adjacent screen plates; the splicing area of ​​the screen plates corresponds to the screening area of ​​the next row of screen plates; the screen pieces are buckled with the rail seat; the rail seat is fixedly connected with the arc screen frame; the screen plate is made of polyurethane material; the side guard plates are placed on both sides of the arc screen; the lower arc surface of the side guard plates is pressed against the arc screen through the wedge and the wedge pressing angle steel; The splicing area between the sieve plates forms a splicing blind area; The splicing blind area is detachably connected with a dividing block; Self-tapping screws are embedded in the dividing block; the dividing block is connected to the splicing blind area or the required position through the self-tapping screws; Each row of sieve holes on the material-facing surface of the sieve plate is provided with a groove; The size of the groove gradually decreases from the feeding end to the discharging end until the groove is eliminated; A lining plate is arranged inside the rail seat; bolts are arranged on the lining plate; and the rail seat is connected to the frame via the bolts.

2. The slurry dewatering and screening device according to claim 1, characterized in that: The dividing block is made of polyurethane material.

3. The slurry dewatering and screening device according to claim 1, characterized in that: The rail seat is made of polyurethane material.

4. The slurry dewatering and screening device according to claim 1 or 3, characterized in that: The arc-shaped screen frame is made by welding stainless steel profiles.

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