A screening device for pulp

Abstract

The utility model provides a kind of screening device for paper pulp, including rack, screening seat is arranged on rack, the upside of rack is provided with symmetrically distributed guide rail, the inside of each guide rail is all provided with guide sliding slot, sliding seat is slidably arranged between guide sliding slot, sliding seat is slidably arranged with sliding frame, the lower surface of sliding frame is provided with lifting seat, the downside of lifting seat is provided with scraper by adjusting assembly, and adjusting assembly is used to adjust the position state of scraper. The screening device for paper pulp can automatically adjust the horizontal and vertical movement of the screening plate, and automatically adjust the rotation angle of the screening plate, making it easy and efficient to scrape the material residue.

Description

Technical Field

[0001] This utility model belongs to the technical field, and specifically relates to a pulp screening device. Background Technology

[0002] Papermaking is a complex industrial process that transforms plant fibers (or other fiber raw materials) into paper or paperboard. Pulp screening is a crucial step in the papermaking process, and its main purpose is to remove impurities from the pulp to obtain pulp that is more uniform in quality and more suitable for subsequent processing (such as papermaking).

[0003] Existing pulp screening devices work by pouring pulp into a hopper, which then feeds it onto a screening screen. The screen vibrates to screen the pulp, causing it to flow down the screen while the pulp residue remains. However, in practice, to ensure effective screening, personnel need to manually scrape the residue off the screen, which is cumbersome, time-consuming, and labor-intensive, placing a significant workload on staff. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a pulp screening device that can automatically adjust the screening plate to move horizontally and vertically while simultaneously adjusting the rotation angle of the screening plate, so as to conveniently and efficiently scrape off the pulp residue.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a pulp screening device, including a frame, a screening seat on the frame, symmetrically distributed guide rails on the upper side of the frame, a guide groove inside each guide rail, a sliding seat slidably disposed between the guide grooves, a sliding frame slidably disposed on the sliding seat, a lifting seat on the lower surface of the sliding frame, a scraper disposed on the lower side of the lifting seat through an adjustment component, the adjustment component being used to adjust the position of the scraper; a screening plate is disposed inside the screening seat, a plurality of screening holes are opened on the upper surface of the screening plate, and a plurality of vibrating motors are disposed on the rear side of the screening seat, all of which are connected to the screening plate.

[0006] As a further improvement of this utility model, the adjusting component includes symmetrically opened sliding grooves on the lifting base. Slider blocks are slidably arranged inside each sliding groove. A drive box is provided on the lower surface of each slider, and a rotating shaft is rotatably arranged on the lower surface of each drive box. A scraper is detachably mounted on the rotating shaft. A second motor is provided inside each drive box, and the lower end of the output shaft of the second motor is fixed to the adjacent rotating shaft via a coupling. Symmetrically distributed adjusting screws are rotatably arranged inside the lifting base, and the sliders are fixed to the adjacent adjusting screws via couplings. A dual-axis motor is provided in the middle of the lifting base, and the output shafts of the dual-axis motor are fixed to the adjacent adjusting screws via couplings. An electric push rod is provided on the lower side of the sliding base, and the telescopic end of the electric push rod is connected and fixed to the lifting base.

[0007] As a further improvement of this utility model, an adjusting screw is rotatably provided inside the rear guide rail. The output shaft of the adjusting screw is threadedly connected to the sliding seat. A motor is provided on the rear guide rail. The output shaft of the motor is fixed to the adjusting screw by a coupling.

[0008] As a further improvement of this utility model, a mounting frame is provided on the upper surface of the frame, a feed hopper is provided at the upper end of the mounting frame, a guide pipe is provided on the lower side of the feed hopper, a discharge hopper is provided on the lower side of the screening seat, and the guide pipe is installed in conjunction with the screening plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] Firstly, the output shaft of motor one drives the adjusting screw one connected to it to rotate. By adjusting the thread relationship between the adjusting screw one and the sliding seat, the scraper is driven to move from the top of the screening plate to the bottom, scraping off the material residue on the screening plate.

[0011] Secondly, the output shaft of the dual-axis motor drives the second adjusting screw connected to it to rotate. By adjusting the thread relationship between the second adjusting screw and the slider, the slider slides with the sliding groove, causing the scraper to move horizontally back and forth from top to bottom, scraping off the residue remaining on the screening plate.

[0012] Thirdly, when the scraper moves, the output shaft of motor two drives the scraper to rotate, and the rotation angle of the scraper is adjusted so as to better scrape off the residue remaining on the screening plate.

[0013] Fourth, by coordinating the output shafts of motor one, motor two, and the dual-shaft motor, the pulp residue screened off the inclined screening plate can be scraped off more effectively. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 4 This is a schematic diagram of the planar structure of this utility model.

[0019] In the diagram: 101, frame; 102, screening seat; 103, screening plate; 104, screening hole; 105, guide rail; 106, guide chute; 107, mounting frame; 108, feed hopper; 109, guide pipe; 110, adjusting screw one; 111, motor one; 112, discharge hopper; 113, vibrating motor; 201, sliding seat; 202, sliding frame; 203, lifting seat; 204, sliding groove; 205, slider; 206, drive box; 207, scraper; 208, motor two; 209, adjusting screw two; 210, dual-shaft motor; 211, electric push rod. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0021] like Figure 1 , 4As shown, the machine includes a frame 101, a screening seat 102 is provided on the frame 101, and symmetrically distributed guide rails 105 are provided on the upper side of the frame 101. Each guide rail 105 has a guide groove 106 inside, and a sliding seat 201 is slidably arranged between the guide grooves 106. A sliding frame 202 is slidably arranged on the sliding seat 201. A lifting seat 203 is provided on the lower surface of the sliding frame 202. A scraper 207 is provided on the lower side of the lifting seat 203 through an adjustment component. The adjustment component is used to adjust the position of the scraper 207. The screening base 102 is equipped with a screening plate 103 inside. The upper surface of the screening plate 103 is provided with multiple screening holes 104. Multiple vibration motors 113 are provided on the rear side of the screening base 102. All vibration motors 113 are connected to the screening plate 103. The upper surface of the frame 101 is provided with a mounting frame 107. The upper end of the mounting frame 107 is provided with a feed hopper 108. The lower side of the feed hopper 108 is provided with a guide pipe 109. The lower side of the screening base 102 is provided with a discharge hopper 112. The guide pipe 109 is installed in conjunction with the screening plate 103.

[0022] like Figure 2 , 3 As shown, the adjustment assembly includes symmetrical sliding grooves 204 on the lifting base 203. Sliding blocks 205 are slidably arranged inside each sliding groove 204. A drive box 206 is provided on the lower surface of each sliding block 205. A rotating shaft is rotatably arranged on the lower surface of each drive box 206. A scraper 207 is detachably mounted on the rotating shaft. A second motor 208 is provided inside each drive box 206. The lower end of the output shaft of the second motor 208 is fixed to the adjacent rotating shaft via a coupling. Symmetrically distributed adjusting screws 209 are rotatably arranged inside the lifting base 203. The sliding blocks 205 are fixed to the adjacent adjusting screws 209 via couplings. A dual-axis motor 210 is provided in the middle of the lifting base 203. The output shaft of the dual-axis motor 210 is fixed to the adjacent adjusting screws 209 via couplings.

[0023] like Figure 2 , 3 As shown, an electric push rod 211 is provided on the lower side of the sliding seat 201, and the telescopic end of the electric push rod 211 is connected and fixed to the lifting seat 203.

[0024] like Figure 2 , 4 As shown, an adjusting screw 110 is rotatably mounted inside the rear guide rail 105. The output shaft of the adjusting screw 110 is threadedly connected to the sliding seat 201. A motor 111 is mounted on the rear guide rail 105. The output shaft of the motor 111 is fixed to the adjusting screw 110 by a coupling.

[0025] In use, the vibration motor 113 drives the screen plate 103 connected to it to vibrate, and then the pulp is poured into the inside of the feed hopper 108. Then, it falls onto the screen plate 103 through the guide pipe 109 on the lower side of the feed hopper 108. The inclined screen plate 103 causes the pulp to flow downward on the screen plate 103. When flowing, it flows into the discharge hopper 112 through the screening holes 104 on the screen plate 103 and is discharged through the discharge hopper 112. At this time, the screened residue remains on the screen plate 103.

[0026] After pulp screening, the vibrating motor 113 is stopped, at which point the screening plate 103 stops. The extension end of the electric push rod 211 drives the lifting seat 203 to move, causing the lifting seat 203 to lower the scraper 207 through the guiding action of the sliding frame 202, thus adjusting the vertical position of the scraper 207. The output shaft of motor 111 drives the adjusting screw 110 connected to it to rotate, and by adjusting the thread relationship between the adjusting screw 110 and the sliding seat 201, the sliding seat 201 drives the scraper 207 to move, thus adjusting the horizontal position of the scraper 207. The output shaft of the dual-shaft motor 210 drives the adjusting screw 209 connected to it to rotate. The movement of the scraper 207 is further adjusted by adjusting the thread relationship between the lead screw 209 and the slider 205, causing the slider 205 to slide between the slider and the sliding groove 204. The operation of the motor 111 drives the scraper 207 to move from the top to the bottom of the screening plate 103. The operation of the dual-shaft motor 210 drives the scraper 207 to move horizontally reciprocally from top to bottom, scraping off the residual material residue on the screening plate 103. When the scraper 207 moves, the output shaft of the motor 208 drives the scraper 207 to rotate, adjusting the rotation angle of the scraper 207 to better scrape off the residual material residue on the screening plate 103.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A pulp screening device, comprising a frame (101), characterized in that: The frame (101) is provided with a screening seat (102). The upper side of the frame (101) is provided with symmetrically distributed guide rails (105). Each guide rail (105) has a guide groove (106) inside. A sliding seat (201) is slidably arranged between the guide grooves (106). A sliding frame (202) is slidably arranged on the sliding seat (201). A lifting seat (203) is provided on the lower surface of the sliding frame (202). A scraper (207) is provided on the lower side of the lifting seat (203) through an adjustment component. The adjustment component is used to adjust the position of the scraper (207).

2. The pulp screening device as described in claim 1, characterized in that: The adjustment component includes sliding grooves (204) symmetrically opened on the lifting seat (203). Slider (205) is slidably arranged inside the sliding groove (204). A drive box (206) is provided on the lower surface of each slider (205). A rotating shaft is rotatably arranged on the lower surface of the drive box (206). The scraper (207) is detachably installed on the rotating shaft.

3. The pulp screening device as described in claim 2, characterized in that: Each drive box (206) is equipped with a second motor (208), and the lower end of the output shaft of the second motor (208) is fixed to the adjacent rotating shaft by a coupling.

4. The pulp screening device as described in claim 2, characterized in that: The lifting seat (203) is internally equipped with symmetrically distributed adjusting screws (209). The slider (205) is fixed to the adjacent adjusting screws (209) by couplings. The lifting seat (203) is equipped with a dual-axis motor (210) in the middle. The output shaft of the dual-axis motor (210) is fixed to the adjacent adjusting screws (209) by couplings.

5. The pulp screening device as described in claim 1, characterized in that: An electric push rod (211) is provided on the lower side of the sliding seat (201), and the telescopic end of the electric push rod (211) is connected and fixed to the lifting seat (203).

6. The pulp screening device as described in claim 1, characterized in that: The rear guide rail (105) is internally equipped with an adjusting screw (110), the output shaft of the adjusting screw (110) is threadedly connected to the sliding seat (201), and a motor (111) is installed on the rear guide rail (105). The output shaft of the motor (111) is fixed to the adjusting screw (110) by a coupling.

7. The pulp screening device as described in claim 1, characterized in that: The screening base (102) is provided with a screening plate (103) inside. The upper surface of the screening plate (103) is provided with a plurality of screening holes (104). A plurality of vibration motors (113) are provided on the rear side of the screening base (102). The vibration motors (113) are all connected to the screening plate (103).

8. The pulp screening device as described in claim 1, characterized in that: The upper surface of the frame (101) is provided with a mounting frame (107), the upper end of the mounting frame (107) is provided with a feed hopper (108), the lower side of the feed hopper (108) is provided with a guide pipe (109), the lower side of the screening seat (102) is provided with a discharge hopper (112), and the guide pipe (109) is installed in conjunction with the screening plate (103).

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