Two-level particle product screening device for chemical production

[0018] The technical solution of this patent will be described in further detail below in conjunction with specific implementations:

[0019] See Figure 1-3 , A secondary screening device for granular products for chemical production, comprising a bottom plate 1, on which a left vertical plate 25 and a right vertical plate 8 are vertically and fixedly installed, and two parallel limiters are horizontally opened on the bottom plate 1. Position slot 6, a screening slot 21 is provided above the bottom plate 1, a leg 28 is fixedly installed at the bottom of the screening slot 21, and the lower end of the leg 28 is rotatably provided with a wheel 5 rolling and embedded in the limit slot 6; The bottom of the screening tank 21 is vertically provided with a discharge pipe 3, a valve 4 is installed on the discharge pipe 3, a screen 7 is fixed horizontally in the screening tank 21, and a scraper is horizontally sliding on the upper surface of the screen 7 2. A return spring 27 is connected between the scraper 2 and the sieving tank 21. The sieving tank 21 is provided with a rotating groove 17. The rotating groove 17 has a hemispherical shell structure. The rotating groove 17 is evenly provided with a number of passages. Hole 16, hinged connecting rod 32 is fixedly installed on the right side wall of rotating groove 17, connecting plate 20 is fixedly installed on the left side of rotating groove 17, fixed plate 23 is fixedly installed on the left side wall of screening groove 21, and fixed plate 23 is connected with A limit spring 22 is connected between the connecting plates 20; a horizontal horizontal plate 19 is fixed horizontally at the upper end of the screening tank 21, and the horizontal horizontal plate 19 is provided with a feed pipe 18 located above the rotating groove 17; the left vertical plate A guide rod 24 that penetrates the left side wall of the screening tank 21 to the right is horizontally fixed on the inner wall of the right side of 25. The right end of the guide rod 24 is rotatably provided with a guide roller 26 that abuts against the bottom surface of the rotating groove 17; the right vertical plate 8 An extension plate 15 is fixedly installed on the left side wall, a drive motor is installed on the extension plate 15, a runner 34 is fixed coaxially on the motor shaft 29 of the drive motor, and a limit cylinder 33 is fixedly installed on the front edge of the runner 34. The right vertical plate 8 is provided with a sector gear 14 in a rotating manner on the left side. A transmission plate 30 is fixedly installed on the sector gear 14, and a waist-shaped hole 31 is opened on the transmission plate 30. The limiting cylinder 33 passes through the waist-shaped hole 31. A sliding rod 12 is horizontally fixedly installed on the right side wall of the sub-slot 21, the sliding rod 12 slides to the right through the right vertical plate 8, and the sliding rod 12 is fixedly installed with a rack 13 meshingly connected with the sector gear 14; the right vertical plate 8 The right side wall is rotated from top to bottom with a second fixed pulley 10 and a first fixed pulley 9, the right end of the sliding rod 12 is connected with a draw rope 11, the draw rope 11 sequentially bypasses the second fixed pulley 10 and the first fixed pulley 9 horizontally penetrates the right vertical plate 8 and the screening groove 21 to the left, and the end of the draw rope 11 away from the draw rope 11 is fixed on the scraper 2. The diameter of the screen hole on the screen 7 is smaller than the diameter of the through hole 16.

[0020] The working principle and use method of the present invention are:

[0021] When in use, the chemical granular product to be screened is put into the rotating groove 17 through the feed pipe 18, and the driving motor is started to realize the motor shaft 29 drives the runner 34 to rotate, and the runner 34 drives the limit cylinder 33 to rotate. 33 rotates while sliding in the waist-shaped hole 31 to realize the alternating left and right swing of the transmission plate 30. The alternating left and right swing of the transmission plate 30 drives the sector gear 14 to rotate alternately clockwise and counterclockwise. The sector gear 14 passes through the rack 13 meshing with it. The sliding rod 12 is driven to slide left and right, and the sliding rod 12 drives the screening groove 21 to reciprocate left and right. When the screening groove 21 moves to the left, the rotating groove 17 swings clockwise under the guidance of the guide roller 26. When the screening groove 21 moves to the left When moving to the right, the rotating groove 17 swings counterclockwise under the guidance of the guide roller 26, and the rotating groove 17 alternately swings clockwise and counterclockwise, which promotes the shaking and dispersion of the granular material in the rotating groove 17, and accelerates the material with a suitable particle size. The through hole 16 falls on the sieve plate 7 to achieve screening. During the rotation of the rotating groove 17, the limit spring 22 is deformed and stretched and compressed under the action of the connecting plate 20, which not only plays a limiting role, but also improves the rotating groove 17 Stability of rotation. The left and right reciprocating movement of the slide bar 12 is carried out by pulling the rope 11 under the action of the return spring 27, so as to realize that the scraper 2 scatters the granular product falling on the sieve plate 7 back and forth to spread the granules. The product quickly passes through the sieve holes on the sieve plate 7, and then achieves the secondary screening of the granular product by the sieve plate 7; the sieve plate 7 drives the legs 28 to reciprocate left and right, and the legs 28 drive the wheels 5 to roll in the limit groove 6. , Improve the stability of the movement of the screening tank 21; the granular chemical products after the second screening by the rotating tank 17 and the sieve plate 7 fall to the bottom of the screening tank 21, open the valve 4, and the granular chemical raw materials can pass through the discharge pipe 3. The screening tank 21 is discharged.

[0022] In summary, the present invention has an ingenious structure and reasonable design. The granular products are screened through the rotation of the rotating groove 17, and the granular products are screened through the sieve plate 7. The rotation of the rotating groove 17 accelerates the rotation. The shaking and dispersion of the raw materials in the trough 17 increase the sieving rate. The scraper 2 moves left and right to scrape the granular raw materials on the sieve plate 7 laterally, which promotes the granular product to pass through the sieve holes of the sieve plate 7, and greatly improves the particle size. Product screening efficiency.

[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the foregoing exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the foregoing description, and therefore it is intended to fall within the claims. All changes within the meaning and scope of equivalent elements of are included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although this specification is described in accordance with the implementation manners, not each implementation manner only includes an independent technical solution. This narration in the specification is only for clarity, and those skilled in the art should consider the specification as a whole The technical solutions in the embodiments can also be appropriately combined to form other implementations that can be understood by those skilled in the art.