Feed screening device for powder concentrator

Abstract

The utility model relates to the technical field of powder selecting machines, in particular to a feed screening device for a powder selecting machine, which comprises a feed inlet main body, a screening structure is fixedly mounted in the feed inlet main body, a driving structure connected with the feed inlet main body is fixedly mounted on the rear side surface of the feed inlet main body, and the feed inlet main body comprises a material frame. The two sides of the material frame fixedly communicate with waste discharging ports, the screening structure comprises a screening fence, coarse nets are fixedly installed at the bottoms of gaps of the screening fence, shifting teeth are slidably clamped to the gaps of the screening fence, the shifting teeth are fixedly installed at the bottom of a shifting plate, and the screening fence is fixedly installed in the material frame. According to the utility model, a mixture of coarse materials and fine materials leaks down and enters the powder concentrator to be screened, blocky materials are intercepted by the screen fence and the coarse net, and meanwhile, the shifting plate reciprocates in the directions of the two sides of the upper surface of the screen fence to shift the powder, so that the powder is in a moving state, assists in passing through the coarse net, shifts the blocky materials to the positions of the two sides in the material frame and is discharged from the waste discharge port; and large materials are prevented from entering the powder concentrator.

Description

Technical Field

[0001] The utility model relates to the technical field of powder separators, in particular to a feeding and screening device for a powder separator. Background Technique

[0002] A powder separator is a device for screening powder materials and is applied to various production environments with requirements for powder materials, such as slag grinding, screening of coarse materials of steel slag fine powder, and other fields. Powder separators can generally be divided into three categories: three-separation powder separators, centrifugal powder separators, and cyclone powder separators.

[0003] Before the powder separator screens the powder materials, it is necessary to pre-treat the materials to be separated, and screen out the massive materials and large-particle materials doped in the powder materials. When these large pieces of materials enter the powder separator, there will be situations such as jamming the internal rotating structure of the equipment and blocking the channel, and they cannot be directly introduced into the feeding port, so there is still room for improvement in production efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a feeding and screening device for a powder separator to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A feeding and screening device for a powder separator includes a main body of the feeding port. A screening structure is fixedly installed inside the main body of the feeding port. A driving structure connected to the main body of the feeding port is fixedly installed on the rear surface of the main body of the feeding port. The main body of the feeding port includes a material frame. Waste discharge ports are fixedly communicated with both sides of the material frame. A slope-blocking structure is fixedly installed inside the waste discharge ports. The screening structure includes a screening fence. A coarse mesh is fixedly installed at the bottom of the gap of the screening fence. A shifting tooth is slidably clamped in the gap of the screening fence. The shifting tooth is fixedly installed at the bottom of a shifting plate. Sealing slide plates are fixedly installed in the middle of the front and rear sides of the shifting plate. The screening fence is fixedly installed inside the material frame. The upper surface of the coarse mesh is in the same plane as the lower edge of the slope-blocking structure. The two sealing slide plates are slidably installed on the inner frame walls of the front and rear sides of the material frame.

[0007] Furthermore: A feeding hopper is fixedly installed at the upper opening of the material frame. A guiding hopper is fixedly installed on the inner wall of the upper opening of the material frame. A discharge port is opened at the lower edge of the front surface of the material frame.

[0008] Furthermore: The driving structure includes an L-shaped connecting rod. A guide rod is slidably sleeved at the turning point of the L-shaped connecting rod. First springs are sleeved on both ends of the side surface of the guide rod. First support frames are fixedly connected to both ends of the guide rod.

[0009] Further, a lead screw is screwed and sleeved at the lower end of the L-shaped connecting rod. One end of the lead screw is rotatably connected to a supporting end block. A second spring is buried in the supporting end block. A clamping bead is abutted against the lower end of the second spring. The clamping bead is slidably abutted against an inner concave annular groove formed on the side surface of one end of the lead screw.

[0010] Further, the other end of the lead screw is rotatably sleeved with a second support frame. A first bevel gear is rotatably installed on the opposite surfaces of the second support frame. The opposite surfaces of the two first bevel gears are movably clamped with a tooth sleeve fixedly sleeved on the side surface of the other end of the lead screw. The bottom sides of the two first bevel gears are meshed with a second bevel gear. The bottom side of the second bevel gear is fixedly connected to the output end of the motor.

[0011] Further, the upper end of the L-shaped connecting rod is fixedly connected to the rear surface of the sealing slide plate at the rear side of the dial plate.

[0012] Further, the two first support frames are fixedly installed on both side edges of the rear surface of the material frame. The supporting end block is fixedly installed on one side edge of the rear surface of the material frame. The second support frame is fixedly installed at one side edge of the rear surface of the material frame. The motor is fixedly installed at one side edge of the rear surface of the material frame.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. After pouring the powder to be screened into the material frame, it passes through the sieve bar and the coarse mesh. The mixture of coarse and fine materials leaks down and enters the powder separator for screening. The lumpy materials and large particles that cannot pass through are intercepted by the sieve bar and the coarse mesh. At the same time, the dial plate reciprocates in both side directions on the upper surface of the sieve bar to stir the powder, making the powder in a moving state, assisting the powder to pass through the coarse mesh, and at the same time pushing the lumpy materials to both sides inside the material frame and discharging them from the waste discharge port, preliminarily screening the powder at the feed port, avoiding large pieces of materials from entering the interior of the powder separator and damaging the equipment.

[0015] 2. The motor rotates the second bevel gear to drive one side of the first bevel gear, and then drives the tooth sleeve clamped with the first bevel gear to rotate the lead screw, pushing the L-shaped connecting rod to slide to one side. When the moving end reaches one end of the guide rod and is abutted and restricted by the first spring, the lead screw is still rotating, but at this time the position of the L-shaped connecting rod is limited. Then, through the reaction force, the whole lead screw moves horizontally, causing the clamping bead to retract and roll from one side edge of the inner concave annular groove and snap to the other side edge of the inner concave annular groove. At the same time, the lead screw drives the tooth sleeve to move and abut against the other group of first bevel gears and be clamped with each other, realizing the change of the rotation direction of the lead screw, so that the L-shaped connecting rod can drive the sealing slide plate and the dial plate to reciprocate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2It is the rear view of the overall structure of the present utility model;

[0018] Figure 3 It is the sectional view of the main body of the feed inlet in the present utility model;

[0019] Figure 4 It is the sectional view of the main body of the feed inlet in the present utility model;

[0020] Figure 5 It is the connection schematic diagram of the driving structure of the screening structure in the present utility model;

[0021] Figure 6 It is the schematic diagram of the driving structure in the present utility model.

[0022] In the figure: 1. Main body of the feed inlet; 101. Material frame; 102. Feed hopper; 103. Guide hopper; 104. Discharge port; 105. Waste discharge port; 106. Slope resistance; 2. Screening structure; 201. Sieve bar; 202. Coarse mesh; 203. Poking tooth; 204. Poking plate; 205. Sealing slide plate; 3. Driving structure; 301. L-shaped connecting rod; 302. Guide rod; 303. First spring; 304. First support frame; 305. Lead screw; 306. Concave annular groove; 307. Ball; 308. Second spring; 309. Support end block; 310. Second support frame; 311. First bevel gear; 312. Tooth sleeve; 313. Second bevel gear; 314. Motor. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 6 , in the embodiment of the present utility model, a feed screening device for a powder separator includes a main body 1 of the feed inlet. A screening structure 2 is fixedly installed inside the main body 1 of the feed inlet. A driving structure 3 connected to the main body 1 of the feed inlet is fixedly installed on the rear side surface of the main body 1 of the feed inlet. The main body 1 of the feed inlet includes a material frame 101. Waste discharge ports 105 are fixedly communicated on both sides of the material frame 101. The screening structure 2 includes a sieve bar 201. A coarse mesh 202 is fixedly installed at the bottom of the gap of the sieve bar 201. A poking tooth 203 is slidably clamped in the gap of the sieve bar 201. The poking tooth 203 is fixedly installed at the bottom of a poking plate 204. The sieve bar 201 is fixedly installed inside the material frame 101.

[0025] Specifically, after the powder to be screened is poured into the material frame 101, it passes through the screen fence 201 and the coarse mesh 202, and the mixture of coarse material and fine material leaks into the powder selector for screening. The block materials and large particles that cannot pass through are intercepted by the screen fence 201 and the coarse mesh 202. At the same time, the paddle 204 reciprocates on both sides of the upper surface of the screen fence 201 to paddle the powder, so that the powder is in a moving state, and the powder is assisted to pass through the coarse mesh 202. At the same time, the block materials are pushed to the positions on both sides of the inside of the material frame 101 and discharged from the waste discharge port 105. The powder is preliminarily screened at the feed inlet to prevent large pieces of material from entering the powder selector and causing damage to the equipment.

[0026] Embodiment 1

[0027] like Figures 3 - 5 As shown, in this embodiment, a resistance slope 106 is fixedly installed inside the waste discharge outlet 105, the upper surface of the coarse net 202 and the lower edge of the resistance slope 106 are in the same plane, and a sealing slide 205 is fixedly installed in the middle of the front and rear sides of the paddle plate 204, and two groups of sealing slides 205 are slidably installed on the inner frame walls on the front and rear sides of the material frame 101.

[0028] In this embodiment, when the paddle plate 204 slides back and forth, the resistance slope 106 forms an obstacle at the waste discharge port 105. Only when the block material accumulates to a certain amount, it can be pushed over the resistance slope 106 by the paddle plate 204 to be discharged, thereby preventing the powder material that does not have time to pass through the coarse mesh 202 from being pushed by the paddle plate 204 and accidentally discharged. The sealing slide plate 205, which is twice the length of the outer frame of the material frame 101, provides guidance and support for the paddle plate 204. At the same time, the opposing surfaces of the two groups of sealing slide plates 205 are in the same plane with the inner wall of the material frame 101, and the slide groove of the sealing slide plate 205 is always blocked during its movement to prevent the discharge of powder material.

[0029] like Figures 1 - 4 As shown, in this embodiment, a feed hopper 102 is fixedly installed on the upper opening of the material frame 101, a guide hopper 103 is fixedly installed on the inner wall of the upper opening of the material frame 101, and a discharge port 104 is opened at the lower edge of the front surface of the material frame 101.

[0030] In specific implementation, the feed hopper 102 assists in pouring the powder, and the guide hopper 103 limits the powder flow at its narrow mouth and guides it to the top of the screen fence 201 and the coarse mesh 202, so that the powder can be moved by the teeth 203 and the plate 204 on the coarse mesh 202 over a certain distance, providing a certain amount of time for the powder to pass through the coarse mesh 202.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, in order to supplement the specific driving method of the reciprocating motion of the paddle 204 in both sides mentioned in the first embodiment.

[0033] like Figure 2 ,5 As shown in FIG. -6, in this embodiment, the driving structure 3 includes an L-shaped connecting rod 301. A guide rod 302 is slidably sleeved at the turning point of the L-shaped connecting rod 301. Two ends of the side surface of the guide rod 302 are sleeved with a first spring 303. Both ends of the guide rod 302 are fixedly connected with a first support frame 304. A lead screw 305 is screwed and sleeved at the lower end of the L-shaped connecting rod 301. One end of the lead screw 305 is rotatably connected with a support end block 309. A second spring 308 is buried in the support end block 309. A catch ball 307 abuts against the lower end of the second spring 308. The catch ball 307 slidably abuts against an inner concave annular groove 306 formed on the side surface of one end of the lead screw 305. The other end of the lead screw 305 is rotatably sleeved with a second support frame 310. A first bevel gear 311 is rotatably installed on the opposite surfaces of the second support frame 310. The opposite surfaces of the two first bevel gears 311 are movably clamped with a tooth sleeve 312 fixedly sleeved on the side surface of the other end of the lead screw 305. The bottom sides of the two first bevel gears 311 are meshed with a second bevel gear 313. The bottom side of the second bevel gear 313 is fixedly connected with the output end of the motor 314. The upper end of the L-shaped connecting rod 301 is fixedly connected with the rear surface of a sealing slide plate 205 behind the dial plate 204. The two first support frames 304 are fixedly installed on both side edges of the rear surface of the material frame 101. The support end block 309 is fixedly installed on one side edge of the rear surface of the material frame 101. The second support frame 310 is fixedly installed at one side edge of the rear surface of the material frame 101. The motor 314 is fixedly installed at one side edge of the rear surface of the material frame 101.

[0034] During specific implementation, the motor 314 rotates the second bevel gear 313 to drive one first bevel gear 311 on one side, and then drives the tooth sleeve 312 clamped with this first bevel gear 311, rotates the lead screw 305, and drives the L-shaped connecting rod 301 to slide to one side. When one end of the guide rod 302 is abutted and restricted by the first spring 303, the lead screw 305 still rotates. However, at this time, the position of the L-shaped connecting rod 301 is limited. Then, due to the reaction force, the whole lead screw 305 moves horizontally, so that the catch ball 307 retracts and rolls from one side edge of the inner concave annular groove 306 and buckles to the other side edge of the inner concave annular groove 306. At the same time, the lead screw 305 drives the tooth sleeve 312 to move and abut against the other first bevel gear 311 and be clamped with it, realizing the change of the rotation direction of the lead screw 305, so that the L-shaped connecting rod 301 can drive the sealing slide plate 205 and the dial plate 204 to reciprocate.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feed screening device for a powder separator, comprising a feed port main body (1), characterized in that, Inside the main body (1) of the feed inlet, a screening structure (2) is fixedly installed. On the rear surface of the main body (1) of the feed inlet, a driving structure (3) connected to the main body (1) of the feed inlet is fixedly installed. The main body (1) of the feed inlet includes a material frame (101). On both sides of the material frame (101), waste discharge outlets (105) are fixedly communicated. Inside the waste discharge outlets (105), a slope-blocking structure (106) is fixedly installed. The screening structure (2) includes a screening fence (201). At the bottom of the gap of the screening fence (201), a coarse mesh (202) is fixedly installed. A shifting tooth (203) is slidably clamped in the gap of the screening fence (201). The shifting tooth (203) is fixedly installed at the bottom of a shifting plate (204). In the middle of the front and rear sides of the shifting plate (204), sealing slide plates (205) are fixedly installed. The screening fence (201) is fixedly installed inside the material frame (101). The upper surface of the coarse mesh (202) and the lower edge of the slope-blocking structure (106) are in the same plane. The two sealing slide plates (205) are slidably installed on the inner frame walls of the front and rear sides of the material frame (101).

2. The feeding and screening device for a powder separator according to claim 1, characterized in that, On the upper opening of the material frame (101), a feed hopper (102) is fixedly installed. On the inner wall of the upper opening of the material frame (101), a guiding hopper (103) is fixedly installed. At the lower edge of the front surface of the material frame (101), a discharge port (104) is provided.

3. The feed screening device for a powder separator according to claim 2, characterized in that, The driving structure (3) includes an L-shaped connecting rod (301). At the turning point of the L-shaped connecting rod (301), a guide rod (302) is slidably sleeved. At both ends of the side surface of the guide rod (302), first springs (303) are sleeved. At both ends of the guide rod (302), first support frames (304) are fixedly connected.

4. The feed screening device for a powder separator according to claim 3, characterized in that, At the lower end of the L-shaped connecting rod (301), a lead screw (305) is screwed and sleeved. One end of the lead screw (305) is rotatably connected to a support end block (309). Inside the support end block (309), a second spring (308) is buried. At the lower end of the second spring (308), a clamping bead (307) abuts. The clamping bead (307) slidably abuts in an inner concave annular groove (306) provided on the side surface of one end of the lead screw (305).

5. The feed screening device for a powder separator according to claim 4, characterized in that, The other end of the lead screw (305) is rotatably sleeved with a second support frame (310). On the opposite surfaces of the second support frame (310), first bevel gears (311) are rotatably installed. On the opposite surfaces of the two first bevel gears (311), they are movably clamped with a tooth sleeve (312) fixedly sleeved on the side surface of the other end of the lead screw (305). At the bottom sides of the two first bevel gears (311), they are meshed with a second bevel gear (313). The bottom side of the second bevel gear (313) is fixedly connected to the output end of a motor (314).

6. The feed screening device for a powder separator according to claim 5, wherein, The upper end of the L-shaped connecting rod (301) is fixedly connected to the rear surface of the sealing slide plate (205) at the rear side of the shifting plate (204).

7. The feed screening device for a powder separator according to claim 6, characterized in that, Two groups of the first support frames (304) are fixedly installed on both side edges of the rear surface of the material frame (101), the support end blocks (309) are fixedly installed on one side edge of the rear surface of the material frame (101), the second support frame (310) is fixedly installed at one side edge of the rear surface of the material frame (101), and the motor (314) is fixedly installed at one side edge of the rear surface of the material frame (101).

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