Uniform feeding device

Abstract

The utility model relates to the field of feeding of vacuum filters, in particular to a uniform feeding device which comprises a feed box and an installation support, a feeding assembly capable of moving in the length direction of the feed box is arranged above the feed box, the feeding assembly comprises a seat plate, a feeding pup joint and a discharging pup joint, the feeding pup joint penetrates through the seat plate, and the discharging pup joint penetrates through the installation support. According to the material distribution device, the material distribution range is expanded, material filling is more uniform, material splashing is reduced, using is more flexible, and universality is higher.

Description

Technical Field

[0001] The utility model relates to the field of feeding of vacuum filters, in particular to a uniform feeding device. Background Art

[0002] A vacuum filter is a device that uses vacuum negative pressure as a driving force to achieve solid-liquid separation. Under the action of vacuum negative pressure, the liquid in the suspension is pumped away through the filter cloth, and the solid particles are retained by the filter cloth, thereby achieving liquid and solid separation. In order to ensure the filtering effect of the filter cloth, it is usually required that the material is filled evenly. If the cloth is uneven during the material filling process, the thickness of the material on the filter cloth is unevenly distributed, which will lead to poor filtration, uneven formation of the filter cake, increased water content of the filter cake, and waste of vacuum air volume.

[0003] The feeding method of conventional vacuum filter is as follows Figure 6 As shown, a fixed filling method is adopted. In order to ensure the uniformity of the feeding, a combination of a feeding port and a baffle is usually adopted. For a large vacuum filter, multiple feeding ports are usually required to ensure the uniformity of the material distribution. However, the solution of multiple feeding ports will not only increase the workload of workers in connecting the feeding pipeline on site, but also have matching requirements for the interface of the upstream feeding equipment, resulting in insufficient versatility of the equipment. Secondly, the baffle at the lower end of the feeding port often causes material splashing, causing on-site environmental pollution, and the material distribution after the baffle is uncontrollable, and uneven material distribution will still occur. Utility Model Content

[0004] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides a uniform feeding device.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model discloses a uniform feeding device, including a material box and a mounting support, a feeding assembly movable along its length direction is provided above the material box, the feeding assembly includes a seat plate, a feed short circuit and a discharge short circuit, the feed short circuit passes through the seat plate, and its interface is located above the seat plate, the discharge short circuit is connected to the feed short circuit and is located in the material box.

[0006] Preferably, the discharging short circuit is fan-shaped, and the cross-section of the terminal outlet is an oblong hole.

[0007] Preferably, both side plates of the material box in the length direction are provided with limiting slide grooves, and both sides of the seat plate are provided with limiting bosses that cooperate with the limiting slide grooves, and the limiting bosses pass through the limiting slide grooves.

[0008] Preferably, the seat plate is further provided with two sets of connecting ear seats on any side of the limiting boss, and the material box is provided with a rack-type reduction motor on the side of the connecting ear seat, and the output shafts at both ends of the rack-type reduction motor are detachably connected to the connecting ear seats.

[0009] Preferably, the limiting boss is detachably connected to the seat plate.

[0010] Preferably, a plurality of groups of supporting rollers are provided on both sides of the seat plate along the length direction of the material box, and the supporting rollers are provided with grooves in the circumferential direction that match with the upper end surfaces of the side plates of the material box, and the grooves are in contact with the upper end surfaces of the side plates.

[0011] Preferably, the cross-sectional area of ​​the terminal outlet of the discharge short circuit is equal to the cross-sectional area of ​​the steel pipe diameter of the feed short circuit.

[0012] The beneficial effects of the utility model are:

[0013] 1. The feeding assembly of the utility model is driven by power and can be displaced along the length direction of the material box, which expands the range of material distribution, makes the material filling more uniform, avoids the blind area of ​​material distribution, and the material falls directly on the filter cloth to avoid splashing due to flow blocking. At the same time, the specific position of the material distribution can be determined according to the characteristics of the material. Compared with the traditional fixed material distribution method, the mobility of the feeding assembly makes the vacuum filter more flexible and more versatile according to the working conditions, and reduces the workload of on-site workers to connect pipelines.

[0014] 2. The discharge short-circuit of the feeding component is designed to be fan-shaped, which further expands the material distribution range during the material filling process, makes the material distribution more uniform, and reduces the displacement stroke of the feeding component during operation; the outlet cross-sectional area of ​​the discharge short-circuit end is consistent with the cross-sectional area of ​​the feed short-circuit steel pipe, which can avoid the sudden increase in outlet pressure and material splashing caused by diameter reduction during material filling, and can also avoid the reduction of material distribution range due to diameter expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 This is a front view of the feeding assembly in the utility model;

[0017] Figure 3 It is a cross-sectional view of the feeding assembly in the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the feeding assembly in the utility model;

[0019] Figure 5 This is a schematic diagram of the material range of the utility model;

[0020] Figure 6 It is a schematic diagram of the cloth range of the prior art.

[0021] In the figure, 1. material box; 2. mounting support; 3. feeding assembly; 301. seat plate; 302. feed short circuit; 303. discharge short circuit; 304. end outlet; 305. connecting ear seat; 306. supporting roller; 307. groove; 4. limiting slide groove; 5. limiting boss; 6. rack-type reduction motor; 7. upper end surface of side plate; 8. filter cloth. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1 To Attachment Figure 6 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0023] A uniform feeding device, such as Figure 1 — Figure 4 As shown, it includes a material box 1 and a mounting support 2. A feeding component 3 is provided above the material box 1 and is movable along its length direction. During the material filling process, the feeding component 3 is displaced along the material box 1 to achieve uniform material distribution.

[0024] The feeding assembly 3 includes a base plate 301, a feeding short circuit 302 and a discharging short circuit 303. The feeding short circuit 302 penetrates the base plate 301, and a flange port for connecting the feeding pipe is provided above the base plate 301. The lower end of the discharging short circuit 303 is connected to the discharging short circuit 303, and the discharging short circuit 303 is located in the material box 1. The two side plates in the length direction of the material box 1 are provided with limiting slide grooves 4, and the two sides of the base plate 301 are provided with limiting bosses 5 at positions corresponding to the limiting slide grooves 4. The limiting bosses 5 penetrate the limiting slide grooves 4 and can move in the limiting slide grooves 4. In order to facilitate the installation of the feeding assembly 3, the limiting bosses 5 and the base plate 301 are detachably connected by bolts.

[0025] A rack-type reduction motor 6 for driving the feeding component 3 to move is also installed on a side plate in the length direction of the material box 1. The centers of the output shafts at both ends of the rack-type reduction motor 6 have threaded holes. The rack-type reduction motor 6 is detachably connected to the two connecting ear seats 305 of the seat plate 301 through the threaded holes of the output shafts at both ends by bolts. When working, the rack-type reduction motor 6 drives the feeding component 3 to reciprocate at a uniform speed along the limiting slide groove 4, which can achieve uniform material distribution, expand the material distribution range and reduce the material distribution blind area. At the same time, it can also achieve fixed-point material distribution, and the equipment is more flexible to use. The rack-type reduction motor 6 is a prior art, and its working principle will not be repeated in this embodiment.

[0026] The seat plate 301 is also provided with a plurality of groups of support rollers 306 for supporting and limiting on both sides along the length direction of the material box 1. The support rollers 306 are circumferentially provided with grooves 307 that cooperate with the upper end faces 7 of the side plates of the material box 1. The grooves 307 are in contact with the upper end faces 7 of the side plates. The grooves 307 can be limited during the movement of the feeding component 3 to prevent the feeding component 3 from being offset in the width direction of the material box 1 and causing operation jams. In this embodiment, there are two support rollers 306 on each side of the seat plate 301.

[0027] like Figure 5 As shown, in order to further expand the range of material distribution and shorten the moving stroke of the feeding component 3, the material discharging short circuit 303 is fan-shaped as a whole, and the cross-section of its end outlet 304 is an oblong hole. In this embodiment, the number of the feeding components 3 is two sets. Figure 6 In the feeding method of the prior art, the discharge short circuit 303 adopts a fan-shaped structure, which can significantly increase the material distribution range. The number of its settings can be significantly reduced compared with the number of conventional feeding ports, further reducing the workload of on-site operators to connect the filling pipeline, and the bottom of the feeding port no longer needs to be provided with a baffle, but the material is directly added to the filter cloth 8 to reduce the splashing of the material. The cross-sectional area of ​​the terminal outlet 304 of the discharge short circuit 303 is equal to the cross-sectional area of ​​the steel pipe diameter of the feed short circuit 302, which can avoid the splashing of the material caused by the sudden increase of pressure after the pipe diameter is reduced, and can also avoid the reduction of the material distribution range caused by the expansion of the pipe diameter.

[0028] Working principle of the utility model: the operator connects the liquid supply pipeline between the liquid supply device and the feed short circuit 302. After everything is ready, the equipment is powered on, the rack-type reduction motor 6 works, and the output shafts at both ends of the device perform reciprocating and uniform motion, driving the feeding component 3 to perform reciprocating and uniform motion. The material enters the feed short circuit 302 and spills through the discharge short circuit 303 and falls directly onto the filter cloth 8 for filtering. During on-site filtering operations, the specific material distribution position of the feeding component 3 can also be determined according to the material property requirements. Compared with the traditional material filling method, the material distribution of this device is more uniform, more flexible, and more versatile.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A uniform feeding device, comprising a material box (1) and a mounting support (2), characterized in that: A feeding assembly (3) is provided above the material box (1) and is movable along its length direction. The feeding assembly (3) comprises a base plate (301), a feeding short circuit (302) and a discharging short circuit (303). The feeding short circuit (302) passes through the base plate (301), and its interface is located above the base plate (301). The discharging short circuit (303) is connected to the feeding short circuit (302) and is located in the material box (1).

2. The uniform feeding device according to claim 1, characterized in that: The discharge short circuit (303) is fan-shaped, and the cross section of the terminal outlet (304) is an oblong hole.

3. The uniform feeding device according to claim 1, characterized in that: The material box (1) is provided with limiting slide grooves (4) on both side plates in the length direction, and limiting protrusions (5) matching with the limiting slide grooves (4) are provided on both sides of the seat plate (301), and the limiting protrusions (5) penetrate the limiting slide grooves (4).

4. The uniform feeding device according to claim 3, characterized in that: The seat plate (301) is further provided with two groups of connecting ear seats (305) on the side of any of the limiting bosses (5); the material box (1) is provided with a rack-type reduction motor (6) on the side of the connecting ear seats (305); and the output shafts at both ends of the rack-type reduction motor (6) are detachably connected to the connecting ear seats (305).

5. The uniform feeding device according to claim 3, characterized in that: The limiting boss (5) is detachably connected to the seat plate (301).

6. The uniform feeding device according to claim 1, characterized in that: A plurality of groups of supporting rollers (306) are also provided on both sides of the seat plate (301) along the length direction of the material box (1); the supporting rollers (306) are provided with grooves (307) in the circumferential direction that match the upper end surfaces (7) of the side plates of the material box (1); and the grooves (307) are in contact with the upper end surfaces (7) of the side plates.

7. The uniform feeding device according to claim 2, characterized in that: The cross-sectional area of ​​the terminal outlet (304) of the discharge short circuit (303) is equal to the cross-sectional area of ​​the steel pipe diameter of the feed short circuit (302).

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