Slurry screening device for paper pulp molded products

Abstract

The utility model relates to the technical field of paper pulp screening, and particularly discloses a pulp screening device for paper pulp molding products, which comprises a screening box, a feeding hopper is arranged at one end of the screening box, a slag outlet is formed in the other end of the screening box, a liquid outlet pipe is arranged at the lower position of the screening box, and a screening mechanism for screening pulp is arranged in the screening box. The screening mechanism comprises a screening assembly obliquely arranged in the screening box. By means of the screening mechanism obliquely arranged in the screening box, when a screen barrel of a screening assembly rotates, an arc-shaped plate and a supporting frame carry up and stir slurry, the slurry is better screened and filtered through the screen barrel, and filter residues in the screen barrel are discharged to a slag outlet under flushing of the continuously-added slurry; and meanwhile, the power on the rotating shaft drives the cleaning roller to rotate through the power transmission piece, so that the cleaning roller and the screen cylinder wall rotating to the upper side rotate relatively, filter residues adhered to the screen cylinder are cleaned, and the slurry filtering efficiency and the slurry screening convenience when the screen cylinder rotates to the lower side are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper pulp screening technical field, especially a pulp screening device for paper pulp molded product. BACKGROUND

[0002] Paper pulp molding is a kind of three-dimensional papermaking technology, and it is made of paper pulp made of waste paper as raw material, and a certain shape of paper product is molded on the molding machine by special mold, which has four advantages: raw material is waste paper, including board paper, waste carton paper, waste white edge paper, etc., and the source is extensive; its manufacturing process is completed by pulping, adsorption forming, drying and shaping, and it is harmless to the environment; it can be recycled and reused; the volume is smaller than foamed plastic, and it can be overlapped, which is convenient for transportation; paper pulp molding, in addition to meal box and tableware, more for industrial cushion packaging, develops very rapidly, and the egg paper holder and the electric appliance paper holder made of paper pulp molding can be called paper pulp molding products;

[0003] When manufacturing paper pulp needed for paper pulp molding, first, a paper shredder is needed to cut the waste paper into pieces, then it is soaked in warm water for an hour, then it is poured into a blender to stir into paper pulp, and finally the paper pulp stirred out of the blender is poured into a pulp screen for filtering, screening and dewatering; the pulp screening device for paper pulp molding product production disclosed in the prior art CN 221645419 U filters the impurities in the paper pulp through a filter plate, filters the precipitated paper pulp through a first filter screen plate, the paper pulp falls onto a second filter screen plate, and the third motor drives the cam to rotate to vibrate and filter the paper pulp, and the linear guide rail, sliding block and second motor pour the impurities in the recess box and second filter screen plate into the right side of the inclined plate; however, the above-mentioned screening device needs to take out the filter screen plate for cleaning in the later period, which causes inconvenience in use. UTILITY MODEL CONTENT

[0004] The utility model discloses a pulp screening device for paper pulp molded product.

[0005] The utility model discloses a pulp screening device for paper pulp molded product.

[0006] The application discloses a pulp screening device for paper pulp molding products, which comprises a screening box, a feeding hopper arranged at one end of the screening box, a slag outlet arranged at the other end of the screening box, a liquid outlet pipe arranged at the lower position of the screening box, and a screening mechanism arranged in the screening box and used for screening pulp.

[0007] Further, the power transmission member comprises a main sprocket fixed on the rotating shaft, and a secondary sprocket fixed on the cleaning roller and corresponding to the main sprocket.

[0008] Further, the rotating shaft is arranged at an angle of 3-5 degrees with the horizontal plane, and is inclined upward towards the feeding hopper.

[0009] Further, the cleaning roller is arranged in parallel with the rotating shaft, and is rotatably connected to the screening box, and the cleaning roller is tangent to the outer surface of the screen cylinder.

[0010] Further, a discharge plate is arranged on the outer wall of the screening box and located below the slag outlet, a guide pipe is arranged on the side of the feeding hopper and inserted into the screen cylinder, and an extension cylinder is arranged on the end face of the screen cylinder and located close to the slag outlet.

[0011] Further, a guide surface is arranged on the inner bottom of the screening box and inclined downward towards the middle, and a collection groove is arranged between the guide surfaces and inclined towards the liquid outlet pipe.

[0012] Further, the length of the cleaning roller is greater than the length of the screen cylinder, and the arc-shaped plates are welded to the screen cylinder.

[0013] Compared with the prior art, the pulp screening device has the following beneficial effects:

[0014] When the screen cylinder of the screening mechanism arranged in the screening box is rotated, the arc-shaped plates and the supporting frame can lift and stir the pulp liquid, so that the pulp liquid can be better filtered through the screen cylinder, the filtrate is discharged from the lower side, the filter residue in the screen cylinder is discharged to the slag outlet under the washing of the continuously added pulp liquid, meanwhile, the power on the rotating shaft drives the cleaning roller to rotate through the power transmission member, so that the cleaning roller and the screen cylinder wall rotated to the upper side are relatively rotated, the filter residue adhered to the screen cylinder is cleaned, and the filtering efficiency of the pulp liquid when the screen cylinder is rotated to the lower side and the convenience of the pulp liquid screening are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 is a half-section structure schematic diagram of the pulp screening device for paper pulp molded products according to the present application;

[0017] Figure 2 is a structure schematic diagram of the pulp screening device for paper pulp molded products according to the present application;

[0018] Figure 3 is a main-section structure schematic diagram of the pulp screening device for paper pulp molded products according to the present application;

[0019] Figure 4 is a structure schematic diagram of the screening mechanism of the pulp screening device for paper pulp molded products according to the present application;

[0020] Figure 5 is another view structure schematic diagram of the screening mechanism of the pulp screening device for paper pulp molded products according to the present application;

[0021] Figure 6 is Figure 4 the right view structure schematic diagram.

[0022] The following is the explanation of the reference signs:

[0023] 1, screening box; 11, feeding hopper; 12, slag outlet; 13, flow guide surface; 14, collecting groove; 15, liquid outlet pipe; 16, discharge plate; 21, rotating shaft; 22, support frame; 23, screen drum; 24, arc plate; 25, extension drum; 26, speed reducer motor; 31, cleaning roller; 32, secondary sprocket; 33, main sprocket. DETAILED DESCRIPTION

[0024] In the description of the utility model, it needs to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0025] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0026] The utility model will be further described below in combination with the drawings:

[0027] As Figures 1-6 shown, a pulp molding product is shown, which comprises a screening box 1, a feeding hopper 11 is arranged at one end of the screening box 1, a slag outlet 12 is formed at the other end, a discharge plate 16 is arranged on the outer wall of the screening box 1 and located below the slag outlet 12, a liquid outlet pipe 15 is arranged at the lower position of the screening box 1, a flow guide surface 13 downwardly inclined to the middle is arranged at the bottom of the inner side of the screening box 1, a collection groove 14 is arranged between the flow guide surfaces 13, the collection groove 14 is inclined to the liquid outlet pipe 15, a screening mechanism for screening the pulp is arranged in the screening box 1.

[0028] In the embodiment, the screening mechanism comprises a screening assembly obliquely arranged in the screening box 1, and a cleaning assembly is arranged on the screening assembly; the screening assembly comprises a rotating shaft 21, a support frame 22 is fixed on the rotating shaft 21, a screen drum 23 is arranged at the outer end of the support frame 22, the screen drum 23 is open at both ends, arc-shaped plates 24 are uniformly distributed on the inner wall of the screen drum 23, the arc-shaped plates 24 are welded to the screen drum 23, a speed reducer 26 is connected to one end of the rotating shaft 21, the rotating shaft 21 is arranged at an angle of 3-5° with the horizontal plane and is inclined upward toward the side of the feeding hopper 11, and the rotating shaft 21 is rotatably connected to the screening box 1; a guide pipe is arranged on the side of the feeding hopper 11 and extends into the screen drum 23, an extension drum 25 is arranged on the end face of the screen drum 23 close to the slag outlet 12, the rotating shaft 21, the support frame 22 and the screen drum 23 are driven to rotate by the speed reducer 26, the slurry entering the screen drum 23 through the feeding hopper 11 is screened in the rotating screen drum 23, the arc-shaped plates 24 and the support frame 22 simultaneously lift and agitate the slurry, so that the slurry is better filtered through the screen drum 23, the liquid falls through the screen drum 23, is concentrated on the flow guide surface 13 and is discharged from the liquid outlet pipe 15 into the collecting groove 14, and the filtered residue in the screen drum 23 is discharged from the slag outlet 12 under the washing of the continuously added slurry, so that the slurry screening is continuously performed.

[0029] The cleaning assembly comprises two cleaning rollers 31 arranged on the upper side of the screen drum 23, the cleaning rollers 31 are arranged opposite to each other, the cleaning rollers 31 are arranged in parallel with the rotating shaft 21, the cleaning rollers 31 are rotatably connected to the screening box 1, and the cleaning rollers 31 are tangent to the outer surface of the screen drum 23; a power transmission member is connected between the cleaning rollers 31 and the rotating shaft 21; the power transmission member comprises a main sprocket 33 fixed on the rotating shaft 21, the main sprocket 33 is located on the side of the screen drum 23, a secondary sprocket 32 is fixed on the cleaning roller 31 at a position corresponding to the main sprocket 33, and a chain is arranged on the main sprocket 33 and the secondary sprocket 32; the length of the cleaning roller 31 is greater than the length of the screen drum 23, when the rotating shaft 21 rotates, the chain between the main sprocket 33 and the secondary sprocket 32 is driven to rotate the cleaning roller 31, so that the cleaning roller 31 relatively rotates with the wall of the screen drum 23 rotating to the upper side and cleans the filtered residue adhered to the screen drum 23.

[0030] The working principle and use process of the utility model are as follows: the slurry is injected into the feeding hopper 11, enters the screen drum 23 through the guide pipe, the speed reducer 26 drives the rotating shaft 21, the support frame 22 and the screen drum 23 to rotate, the screen drum 23 filters the slurry, the liquid falls through the screen drum 23, is concentrated on the flow guide surface 13, is discharged from the liquid outlet pipe 15 into the collecting groove 14, and the filtered residue in the screen drum 23 is discharged from the slag outlet 12 under the washing of the continuously added slurry, meanwhile, the main sprocket 33 on the rotating shaft 21 drives the secondary sprocket 32 and the cleaning roller 31 to rotate through the chain, so that the cleaning roller 31 relatively rotates with the wall of the screen drum 23 rotating to the upper side, cleans the filtered residue adhered to the screen drum 23, and improves the filtering efficiency of the slurry when the screen drum 23 rotates to the lower side.

[0031] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A pulp molding product pulp screening device, comprising a screening box (1), one end of which is provided with a feeding hopper (11), the other end of which is provided with a slag outlet (12), and a liquid outlet pipe (15) is arranged at the lower position of the screening box (1), characterized in that: The screening box (1) is provided with a screening mechanism for screening slurry; the screening mechanism comprises a screening assembly obliquely arranged in the screening box (1), and the screening assembly is provided with a cleaning assembly; the screening assembly comprises a rotating shaft (21), the rotating shaft (21) is fixed with a support frame (22), the outer end of the support frame (22) is provided with a screen cylinder (23), the screen cylinder (23) is open at both ends, and the inner wall of the screen cylinder (23) is uniformly provided with an arc plate (24); one end of the rotating shaft (21) is connected with a power member; the cleaning assembly comprises two cleaning rollers (31) arranged on the upper side of the screen cylinder (23), the cleaning rollers (31) are arranged opposite to each other, and the cleaning rollers (31) and the rotating shaft (21) are connected with a power transmission member.

2. A pulp screening device for pulp molded articles according to claim 1, characterized in that: The power transmission member comprises a main sprocket (33) fixed on the rotating shaft (21), and the main sprocket (33) is located on one side of the screen cylinder (23); the cleaning roller (31) is fixed with a secondary sprocket (32) at a position corresponding to the main sprocket (33).

3. A pulp screening device for pulp molded articles according to claim 1, characterized in that: The rotating shaft (21) is arranged at an angle of 3-5° with the horizontal plane, and is inclined upward toward the side of the feeding hopper (11); and the rotating shaft (21) is rotationally connected with the screening box (1).

4. A pulp screening device for pulp molded articles according to claim 3, characterized in that: The cleaning roller (31) is arranged in parallel with the rotating shaft (21), and the cleaning roller (31) is rotationally connected with the screening box (1); and the cleaning roller (31) is tangent to the outer surface of the screen cylinder (23).

5. A pulp screening device for pulp molded articles according to claim 1, characterized in that: An outlet plate (16) is arranged on the outer wall of the screening box (1) below the slag outlet (12); a guide pipe is arranged on one side of the feeding hopper (11) and inserted into the screen cylinder (23); and an extension cylinder (25) is arranged on the end face of the screen cylinder (23) close to the side of the slag outlet (12).

6. A pulp screening device for pulp molded articles according to claim 1, characterized in that: A flow guide surface (13) is arranged on the inner side of the bottom of the screening box (1) and inclined downward to the middle; a collection groove (14) is arranged between the flow guide surfaces (13); and the collection groove (14) is inclined toward the liquid outlet pipe (15).

7. A pulp screening device for pulp molded articles according to claim 1, characterized in that: The length of the cleaning roller (31) is greater than the length of the screen cylinder (23), and the arc plate (24) is welded to the screen cylinder (23).

Images