Paper pulp filtering device

Abstract

The utility model discloses a paper pulp filtering device which comprises a filtering disc assembly, an upper cover is arranged at the top of the filtering disc assembly, a confluence hopper is arranged at the bottom of the filtering disc assembly, a plurality of supporting legs are evenly distributed on the side wall of the filtering disc assembly, and a feeding hopper is arranged at the top of the upper cover; the stirring assembly is arranged on the upper cover, is inserted into an inner cavity of the filter disc assembly and is used for stirring paper pulp falling on the filter disc assembly; and the negative pressure suction assembly is arranged outside the confluence hopper, communicates with the confluence hopper and is used for sucking air in the confluence hopper, so that a negative pressure environment is formed in the confluence hopper. The stirring assembly inserted into the filter disc assembly is arranged on the upper cover, to-be-filtered paper pulp is flatly laid on a filter screen of the filter disc assembly in a stirring mode, the filtering efficiency is improved, the negative pressure suction assembly communicated with the confluence hopper is arranged, the confluence hopper generates suction force on the paper pulp in the filter disc assembly, and the paper pulp in the filter disc assembly is sucked by the negative pressure suction assembly. The to-be-filtered paper pulp is easier to penetrate through a filter screen in the filter disc assembly, so that the filter efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to papermaking equipment technical field, concretely relates to a paper pulp filtering device. BACKGROUND

[0002] In the papermaking industry, the quality of paper pulp directly affects the performance of the final product, so it is necessary to effectively purify the paper pulp. The paper pulp filtration technology is mainly to remove non-fibrous substances and other impurities in the paper pulp, such as wood chips, dust, gelatinous substances, metal fragments, etc., to ensure the purity of the paper pulp, thereby improving the quality of paper.

[0003] At present, the common paper pulp filtering devices on the market mostly use gravity sedimentation or mechanical screening method for filtration. However, these traditional methods have some inherent limitations, such as slow filtration speed, low efficiency, easy to block, etc. Especially when dealing with paper pulp containing a high proportion of fine particles, the traditional filtration method often cannot effectively separate these impurities, resulting in spots or holes on the surface of the paper, affecting the product quality.

[0004] Therefore, the present application proposes a paper pulp filtering device to solve the above technical problems. SUMMARY

[0005] The main purpose of the utility model is to solve the above-mentioned shortcomings, provide a paper pulp filtering device, which can quickly and effectively filter the paper pulp, and automatically clear the blockage to maintain the filtration efficiency.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A paper pulp filtering device, comprising: a filter disc assembly, the top of the filter disc assembly is provided with an upper cover, the bottom is provided with a flow collector, the side wall is uniformly arranged with a plurality of supporting feet, the top of the upper cover is provided with a feeding hopper; an agitating assembly is arranged on the upper cover and inserted into the inner cavity of the filter disc assembly, used for agitating the paper pulp falling on the filter disc assembly; a negative pressure suction assembly is arranged outside the flow collector and communicates with it, used for sucking the air in the flow collector, so as to form a negative pressure environment inside the flow collector.

[0008] Further, the filter disc assembly comprises a cylinder, a supporting frame fixedly arranged at the bottom of the inner cavity of the cylinder, a filter screen arranged in the inner cavity of the cylinder and abutting against the bottom surface of the supporting frame, a residue discharge port opened on the side wall of the cylinder, and a chute fixedly arranged at the corresponding position of the outer wall of the cylinder and the residue discharge port.

[0009] Further, the stirring assembly comprises a deceleration motor fixed on the top of the upper cover, a rotating connecting rod with one end connected with the output end of the deceleration motor and the other end penetrating through the upper cover and inserted into the inner cavity of the cylinder, and a stirring paddle fixed on the end of the rotating connecting rod inserted into the cylinder, the stirring paddle abutting against the top surface of the filter screen.

[0010] Further, the stirring paddle is composed of a plurality of paddle blades arranged around, the middle part of the paddle blade is bent, and the included angle after bending is obtuse.

[0011] Further, a material collecting baffle is fixed at the slag discharge port, and the opening of the material collecting baffle is opposite to the rotating direction of the stirring paddle.

[0012] Further, a material guide groove is fixed on the top surface of the inner cavity of the upper cover, the material guide groove is communicated with the feeding hopper, and the outlet end of the material guide groove is directed to the rotating shaft of the stirring paddle.

[0013] Further, the negative pressure suction assembly comprises a suction nozzle assembly with one end inserted into the inner cavity of the collecting hopper and the other end extending to the outside of the collecting hopper, a vacuum pump arranged outside the collecting hopper, and a communication pipe connected between the input end of the vacuum pump and the suction nozzle assembly.

[0014] Further, the suction nozzle assembly comprises a pipe body penetrating through the collecting hopper, a conical baffle cap fixed on the end of the pipe body inserted into the inner cavity of the collecting hopper, and air permeation holes formed on the part of the pipe body covered by the conical baffle cap.

[0015] The beneficial effects of the utility model lie in:

[0016] The utility model discloses a device main body which is composed of a filter disc assembly, an upper cover, a collecting hopper, supporting legs and a feeding hopper, and the paper pulp is filtered through the filter screen, and the stirring assembly is arranged in the filter disc assembly on the upper cover, so that the paper pulp to be filtered is laid flat on the filter screen of the filter disc assembly through stirring, the filtering efficiency is improved, and the solid impurities filtered on the filter screen can be thrown away from the filter screen and discharged from the filter disc assembly by centrifugal force. The negative pressure suction assembly communicated with the collecting hopper is arranged, so that the negative pressure environment is generated in the collecting hopper, the suction force is generated on the paper pulp in the filter disc assembly, the paper pulp to be filtered can pass through the filter screen in the filter disc assembly more easily, and the filtering efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification integrated into this application serve to provide further understanding of the present utility model, and the illustrative embodiments of the present utility model and the description thereof are used to explain the present utility model, and do not constitute improper limitation on the present utility model. In the drawings:

[0018] Figure 1It is the whole structure schematic view of one embodiment of the utility model;

[0019] Figure 2 It is the whole structure schematic view of one embodiment of the utility model from another angle;

[0020] Figure 3 It is the internal structure schematic view of one embodiment of the utility model;

[0021] Figure 4 It is the filter disc assembly structure schematic view of one embodiment of the utility model;

[0022] Figure 5 It is the internal structure schematic view of one embodiment of the utility model;

[0023] Figure 6 It is the paddle structure schematic view of one embodiment of the utility model;

[0024] Figure 7 It is the air suction nozzle assembly structure schematic view of one embodiment of the utility model.

[0025] In the figure: 1, filter disc assembly; 101, cylinder; 102, support frame; 103, filter screen; 104, slag discharge port; 105, chute; 2, upper cover; 3, flow collector; 4, support leg; 5, feed hopper; 6, stirring assembly; 61, speed reducer motor; 62, rotating connecting rod; 63, stirring paddle; 7, negative pressure suction assembly; 71, air suction nozzle assembly; 711, pipe body; 712, conical cap; 713, air hole; 72, vacuum pump; 73, communication pipe; 8, paddle; 9, material collecting baffle; 10, material guide groove. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As Figures 1-7 shown, the utility model provides a kind of paper pulp filtering device, comprising:

[0028] The filter disc assembly 1 is provided with an upper cover 2 at the top and a collecting hopper 3 at the bottom, and a plurality of supporting feet 4 are uniformly arranged on the side wall. The top of the upper cover 2 is provided with a feeding hopper 5. The stirring assembly 6 is arranged on the upper cover 2 and inserted into the inner cavity of the filter disc assembly 1, and is used to stir the paper pulp falling on the filter disc assembly 1. The negative pressure suction assembly 7 is arranged outside the collecting hopper 3 and communicates with the collecting hopper 3, and is used to suck the air in the collecting hopper 3, so that a negative pressure environment is formed in the collecting hopper 3. The filter disc assembly 1 comprises a cylinder body 101, a supporting frame 102 fixedly arranged at the bottom of the inner cavity of the cylinder body 101, a filter screen 103 arranged in the inner cavity of the cylinder body 101 and abutting against the bottom surface of the supporting frame 102, a residue discharging port 104 opened on the side wall of the cylinder body 101, and a chute 105 fixedly arranged at the outer wall of the cylinder body 101 corresponding to the residue discharging port 104.

[0029] In use, the paper pulp to be filtered is poured into the filter disc assembly 1 from the feeding hopper 5. Under the stirring action of the stirring assembly 6, the paper pulp is evenly laid on the filter screen 103. Under the suction force of the negative pressure suction assembly 7 and the action of its own gravity, the paper pulp passes through the filter screen 103 and falls into the collecting hopper 3. The solid particles in the paper pulp are intercepted on the upper surface of the filter screen 103, are stirred by the stirring assembly 6 to the residue discharging port 104, and are discharged along the chute 105, so that the filtration of the paper pulp is completed.

[0030] In an embodiment, the stirring assembly 6 comprises a speed reducer motor 61 fixedly arranged at the top of the upper cover 2, a rotating connecting rod 62 having one end in transmission connection with the output end of the speed reducer motor 61 and the other end penetrating through the upper cover 2 and being inserted into the inner cavity of the cylinder body 101, and a stirring paddle 63 fixedly arranged at the end of the rotating connecting rod 62 inserted into the cylinder body 101, the stirring paddle 63 abutting against the top surface of the filter screen 103.

[0031] In this way, after the speed reducer motor 61 is started, the speed reducer motor 61 drives the rotating connecting rod 62 to rotate, the rotating connecting rod 62 drives the stirring paddle 63 to rotate, and the stirring paddle 63 stirs the paper pulp to be filtered on the filter screen 103, so that the paper pulp is laid on the filter screen 103 to improve the filtering efficiency. At the same time, the stirring paddle 63 also throws the solid particles filtered out on the filter screen 103 into the residue discharging port 104, so that the solid particles are discharged out of the filter disc assembly 1.

[0032] In an embodiment, the stirring paddle 63 is composed of a plurality of paddle blades 8 arranged around, the middle part of the paddle blade 8 is bent, and the included angle after bending is obtuse.

[0033] In this way, when the stirring paddle 63 stirs the paper pulp, under the action of centrifugal force, the paper pulp and the solid particles mixed in the paper pulp move outward along the paddle blade 8. The converging effect of the paddle blade 8 with the obtuse bending angle can make the paper pulp stay on the filter screen 103 for a longer time, so that the paper pulp and impurities are better separated, and at the same time, it is also ensured that the separated impurities can be smoothly thrown off from the paddle blade 8.

[0034] In an embodiment, a collecting baffle 9 is fixedly arranged at the slagging port 104, and the opening of the collecting baffle 9 is opposite to the rotating direction of the stirring paddle 63.

[0035] In this way, the impurities thrown by the stirring paddle 63 can be collected by the collecting baffle 9 and enter the slagging port 104, which is beneficial to the discharge of the filtered impurities.

[0036] In an embodiment, a guide groove 10 is fixedly arranged at the top surface of the inner cavity of the upper cover 2, and the guide groove 10 is in communication with the feeding hopper 5 and the outlet end thereof faces the rotating shaft of the stirring paddle 63.

[0037] In this way, the paper pulp entering the filter disc assembly 1 can gradually spread outward from the center of the filter screen 103, which increases the residence time of the paper pulp on the filter screen 103, thereby improving the filtering effect.

[0038] In an embodiment, the negative pressure suction assembly 7 comprises a suction nozzle assembly 71 inserted into the inner cavity of the collecting hopper 3 and extending to the outside of the collecting hopper 3, a vacuum pump 72 arranged outside the collecting hopper 3, and a communication pipe 73 connected between the input end of the vacuum pump 72 and the suction nozzle assembly 71.

[0039] In this way, the vacuum pump 72 continuously sucks the air in the collecting hopper 3 through the suction nozzle assembly 71 and the communication pipe 73, so that a negative pressure environment is generated in the collecting hopper 3, and a suction force is generated on the paper pulp in the filter disc assembly 1, which makes the paper pulp to be filtered more easily pass through the filter screen 103 in the filter disc assembly 1, thereby improving the filtering efficiency.

[0040] In an embodiment, the suction nozzle assembly 71 comprises a pipe body 711 penetrating the collecting hopper 3, a conical cap 712 fixedly arranged at the end of the pipe body 711 inserted into the inner cavity of the collecting hopper 3, and air holes 713 arranged on the part of the pipe body 711 covered by the conical cap 712.

[0041] In this way, the air in the collecting hopper 3 can pass through the air holes 713 and be sucked away by the vacuum pump 72, and the paper pulp falling through the filter disc assembly 1 cannot enter the suction nozzle assembly 71 due to the shielding of the conical cap 712, thereby preventing the paper pulp from being sucked into the vacuum pump 72.

[0042] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the claims are intended to be embraced therein.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A pulp filtration device, characterized in that, include: The filter disc assembly (1) has a top cover (2) on the top, a confluence hopper (3) on the bottom, and multiple support feet (4) evenly arranged on the side wall. The top of the top cover (2) has a feed hopper (5). A stirring component (6) is disposed on the upper cover (2) and inserted into the inner cavity of the filter plate assembly (1) for stirring the pulp falling on the filter plate assembly (1); The negative pressure suction component (7) is disposed outside and connected to the manifold (3) and is used to suction the air in the manifold (3) to create a negative pressure environment inside the manifold (3).

2. The pulp filtration device as described in claim 1, characterized in that, The filter disc assembly (1) includes a cylinder (101), a support frame (102) fixedly disposed at the bottom of the inner cavity of the cylinder (101), a filter screen (103) disposed in the inner cavity of the cylinder (101) and whose bottom surface abuts against the support frame (102), a slag discharge port (104) opened on the side wall of the cylinder (101), and a sliding groove (105) fixedly disposed on the outer wall of the cylinder (101) at a position corresponding to the slag discharge port (104).

3. The pulp filtration device as described in claim 2, characterized in that, The agitation assembly (6) includes a geared motor (61) fixedly mounted on the top of the upper cover (2), a rotating connecting rod (62) with one end connected to the output end of the geared motor (61) and the other end passing through the upper cover (2) and inserted into the inner cavity of the cylinder (101), and an agitator (63) fixedly mounted on the end of the rotating connecting rod (62) inserted into the cylinder (101), the agitator (63) abutting against the top surface of the filter screen (103).

4. The pulp filtration device as described in claim 3, characterized in that, The agitator (63) is composed of multiple blades (8) arranged in a circle, with the blades (8) bent in the middle and the included angle after bending is an obtuse angle.

5. A pulp filtration device as described in claim 3, characterized in that, A material collection baffle (9) is fixedly installed at the slag discharge port (104), and the opening of the material collection baffle (9) faces the opposite direction to the rotation direction of the agitator (63).

6. A pulp filtration device as described in claim 3, characterized in that, The top surface of the inner cavity of the upper cover (2) is fixedly provided with a guide groove (10), which is connected to the feed hopper (5) and the outlet end faces the rotation shaft of the agitator (63).

7. A pulp filtration device as described in claim 1, characterized in that, The negative pressure suction assembly (7) includes a suction nozzle assembly (71) with one end inserted into the inner cavity of the manifold (3) and the other end extending to the outside of the manifold (3), a vacuum pump (72) disposed outside the manifold (3), and a connecting pipe (73) connecting the input end of the vacuum pump (72) and the suction nozzle assembly (71).

8. A pulp filtration device as described in claim 7, characterized in that, The air extraction nozzle assembly (71) includes a tube (711) that penetrates the manifold (3), a conical cap (712) fixedly disposed at one end of the tube (711) inserted into the inner cavity of the manifold (3), and an air vent (713) opened on the part of the tube (711) that is blocked by the conical cap (712).

Images