A glue recovery system for a gluing machine

Abstract

The application aims to provide a sizing machine glue solution recycling processing system, comprising a sediment tank, a circular vibrating screen A, a wave trough filter, a feeding cylinder, a glue solution filter and a sizing machine arranged in sequence, and the sizing machine recycling glue solution end is connected with the wave trough filter in sequence through a circular vibrating screen B and a circular vibrating screen C. The application relates to the papermaking equipment technical field, and the sizing machine glue solution recycling processing system can effectively solve the problem of impurities in the glue solution by designing two circular vibrating screens for filtering in the recycling glue solution process. The primary solution and the recycled solution are discharged together after passing through the wave trough filter, so that the usage amount of the glue solution can be conveniently counted, and the normal work is not affected. The design of the wave trough filter can further continue filtering the recycled glue solution after filtering, and the filtered glue solution can have the same use effect as the newly injected primary solution, so that the service life of the doctor blade is guaranteed, the glue is not easy to break, the sizing is uniform, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of papermaking equipment, in particular to a sizing machine glue solution recycling system. BACKGROUND

[0002] When processing paper, sizing is needed to improve the surface strength of the paper to prevent the diffusion and penetration of water quality liquid. The most direct and effective method is surface sizing, that is, evenly coating sizing material on the surface of the paper through a sizing machine.

[0003] Among them, the backflow glue solution from the sizing machine and the residue glue from the feeding screen exist impurities when recycled, which will cause scratches on the doctor blade when the impurities contact the doctor blade, affecting the service life of the doctor blade, and the impurities will also affect the sizing effect, and the glue is easy to break, causing uneven sizing.

[0004] In order to solve the above problems, a solution is given in the prior art, for example, the utility model patent with the patent number CN216497965U and the name of a sizing machine glue solution residue removal and purification system. The normal use effect of the glue solution is ensured by double residue removal of the recovered glue solution through a square sieve and a residue remover. However, the existing residue remover has low filtering efficiency when filtering the glue solution, the residue particles cannot be effectively discharged, and the filtered glue is easy to overflow, resulting in glue mixing, and the actual use effect is very poor. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a sizing machine glue solution recycling system, which solves the problem of poor filtering effect of the existing recovered glue.

[0006] To achieve the above purpose, the following technical scheme is adopted: a sizing machine glue solution recycling system, comprising a sediment tank, a circular vibrating screen A, a wave trough filter, a feeding cylinder, a glue solution filter and a sizing machine arranged in sequence, and the sizing machine glue solution end is connected with the wave trough filter through a circular vibrating screen B and a circular vibrating screen C in sequence.

[0007] Preferably, the wave trough filter comprises a strip-shaped filtrate tank, the filtrate tank comprises a clear liquid section, a sedimentation section and a filtrate section in sequence, the sedimentation section is located between the clear liquid section and the filtrate section, the top of the clear liquid section and the filtrate section is respectively inserted with a liquid inlet pipe A connected with the circular vibrating screen A and a liquid inlet pipe B connected with the circular vibrating screen B, the sedimentation section is concave downward to form a sedimentation tank, the bottom of the sedimentation tank is connected with a residue discharge pipe, and the clear liquid section is connected with a liquid outlet pipe connected with the feeding cylinder.

[0008] Preferably, the horizontal plane of the clear liquid section is lower than that of the filtrate section, and the horizontal plane of the sedimentation section is lower than that of the clear liquid section.

[0009] Preferably, an inner filtering mechanism is installed in the filtrate section to flow the circular vibrating screen B into the glue solution filter and then into the precipitation section, the liquid outlet end of the inner filtering mechanism extends into the precipitation tank to form a slope to facilitate the flow of liquid, and the inner filtering mechanism can vibrate in the filtrate section.

[0010] Preferably, the inner filtering mechanism includes a tank body, an inner screen is arranged near the liquid outlet end of the precipitation section, a vibration exciter is installed on the side of the tank body away from the liquid outlet end, and an elastic member is installed at the bottom of the tank body to enable the tank body to vibrate in the filtrate section.

[0011] Preferably, a barrier is arranged at the junction of the precipitation section and the clean liquid section to prevent impurities in the precipitation section from mixing into the clean liquid section, and the barrier includes an inner filter screen.

[0012] Beneficial effects

[0013] By using the glue solution recycling treatment system of the application, the problem of impurities in the glue solution is effectively solved by designing two circular vibrating screens for filtering in the recycling glue solution process. The primary liquid and the recycled liquid are discharged after passing through the wave trough filter, which can facilitate the statistics of the usage amount of glue solution and does not affect the normal work. The design of the wave trough filter can filter the recycled glue solution and then further continue filtering a large amount of the filtered glue solution, which can have the same use effect as the newly injected primary liquid, thereby ensuring the service life of the doctor blade, preventing glue breakage, ensuring uniform glue application, and improving product quality. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a schematic diagram of the glue application system of the application;

[0015] Fig. 2 It is a schematic diagram of the wave trough filter structure of the application;

[0016] Explanation of symbols in the figure

[0017] 1, sediment tank, 2, circular vibrating screen A, 3, wave trough filter, 31, liquid inlet pipe A, 32, inner screen, 33, liquid inlet pipe B, 34, vibration exciter, 35, liquid outlet pipe, 36, clean liquid section, 37, inner filter screen, 38, precipitation section, 39, filtrate section, 4, circular vibrating screen B, 5, circular vibrating screen C, 6, feeding cylinder, 7, glue solution filter, 8, glue applicator. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. As long as the effects of the application can be achieved, various changes can be made to the embodiments.

[0019] Through the personnel in the art, the parts in the case are sequentially connected, and the specific connection and operation sequence should be referred to the working principle, and the detailed connection means is a common technology in the art, and the working principle and process are mainly introduced below.

[0020] Referring to Figs. 1-2 A sizing machine glue solution recycling treatment system is described, a sizing machine glue solution recycling treatment system, comprising a sediment tank 1, a circular vibrating screen A 2, a wave trough filter 3, a feeding cylinder 6, a glue solution filter 7 and a sizing machine 8 arranged in sequence, the sizing machine 8 recycling glue solution end is connected with the wave trough filter 3 through the circular vibrating screen B 4 and the circular vibrating screen C 5 in sequence.

[0021] Before the raw material enters the feeding cylinder 6 through the sediment tank 1 and the circular vibrating screen A 2, it first enters the wave trough filter 3; at the same time, the glue solution recycled by the sizing machine 8 first passes through two circular vibrating screens (circular vibrating screen B 4 and circular vibrating screen C 5) and then enters the wave trough filter 3 together; the initial liquid in the wave trough filter 3 and the filtered recycled liquid re-enter the feeding cylinder 6 for reuse. The impurities in the glue solution are filtered out to avoid the contact between the impurities and the scraper, which can effectively improve the service life of the scraper. The disappearance of impurities can effectively solve the situation of glue breaking, make the sizing more uniform and improve the product quality.

[0022] It needs to be specially pointed out that the wave trough filter 3 includes a strip-shaped filtrate tank, the filtrate tank includes a clear liquid section 36, a sedimentation section 38 and a filtrate section 39 in sequence, the sedimentation section 38 is located between the clear liquid section 36 and the filtrate section 39, and the top of the clear liquid section 36 and the filtrate section 39 is respectively inserted with a liquid inlet pipe A 31 connected with the circular vibrating screen A 2 and a liquid inlet pipe B 33 connected with the circular vibrating screen B 4.

[0023] When the initial liquid enters the wave trough filter 3 after passing through the circular vibrating screen A 2, it directly enters the clear liquid section 36 and flows into the feeding cylinder 6 through the liquid outlet pipe 35 of the clear liquid section 36. In order to avoid that the recycled liquid filtered through the two circular vibrating screens still contains impurities, when it enters the wave trough filter 3, it enters the clear liquid section 36, and then flows into the clear liquid section 36 after filtration and sedimentation of the sedimentation section 38.

[0024] The sedimentation section 38 is concave downward to form a sedimentation tank, the bottom of the sedimentation tank is connected with a sediment discharge pipe, and the clear liquid section 36 is connected with a liquid outlet pipe 35 connected with the feeding cylinder 6.

[0025] Through the concave design, the glue solution can flow out after sedimentation, the impurities are deposited into the concave part and finally discharged through the sediment discharge pipe.

[0026] The horizontal plane of the clear liquid section 36 is lower than that of the filtrate section 39, and the horizontal plane of the sedimentation section 38 is lower than that of the clear liquid section 36.

[0027] With this design, the flow of glue liquid is assisted, and the glue liquid can flow out at the liquid outlet pipe 35 in the clean liquid section 36.

[0028] An inner filtering mechanism is installed in the filtrate section 39 to flow the circular vibrating screen B4 into the glue liquid after filtering and into the precipitation section 38. The liquid outlet end of the inner filtering mechanism extends into the precipitation tank to form a slope for facilitating the flow of liquid. The inner filtering mechanism can vibrate in the filtrate section 39.

[0029] When the recovered glue liquid falls into the vibratable inner filtering mechanism, the flow of glue liquid is assisted.

[0030] The inner filtering mechanism includes a tank body. An inner screen 32 is arranged close to the liquid outlet end of the precipitation section 38. A vibration exciter 34 is installed on the side of the tank body away from the liquid outlet end. An elastic member is installed at the bottom of the tank body to vibrate the tank body in the filtrate section 39.

[0031] The elastic member is preferably a spring. In order to ensure the working effect of the spring, a soft rubber sleeve or a silica gel sleeve is sleeved on the outside.

[0032] The vibration exciter 34 makes the tank body move quickly, and the glue liquid flows into the precipitation tank through the inner screen 32. The inner screen 32 can also perform coarse screening.

[0033] A barrier is arranged at the joint of the precipitation section 38 and the clean liquid section 36 to prevent impurities in the precipitation section 38 from mixing into the clean liquid section 36. The barrier includes an inner filter screen 37.

[0034] The glue liquid after precipitation in the precipitation section 38 flows into the clean liquid section 36 after the last barrier of the inner filter screen 37, and flows out at the liquid outlet pipe 35.

[0035] Although the embodiments of the present application and its advantages have been described in detail, it should be understood that those skilled in the art can design different variants or make changes, substitutions to the present application without departing from the spirit and scope defined by the appended claims of the present application. In addition, the scope of the present patent application is not limited to the specific embodiments of the processes, devices, manufacturers, compositions of matter, means, methods and steps described in the specification. Those skilled in the art can understand from the disclosure of the present application that the processes, machines, manufacturers, compositions of matter, means, methods or steps, whether existing or to be developed in the future, can be utilized according to the present application as long as they can substantially perform the same function or achieve the same result as the embodiments described herein. Accordingly, the claims appended herein are intended to cover such processes, devices, manufacturers, compositions of matter, means, methods or steps in their scope.

Claims

1. A glue recovery and treatment system for a glue applicator, characterized in that, The system includes a sedimentation tank (1), a circular vibrating screen A (2), a trough filter (3), a feeding cylinder (6), a glue filter (7), and a glue applicator (8) arranged in sequence. The glue applicator (8) is connected to the trough filter (3) in sequence through a circular vibrating screen B (4) and a circular vibrating screen C (5). The trough filter (3) includes a strip-shaped filtrate tank, which includes a clean liquid section (36), a sedimentation section (38) and a filtrate section (39) in sequence. The sedimentation section (38) is located between the clean liquid section (36) and the filtrate section (39). The top of the clean liquid section (36) and the filtrate section (39) are respectively inserted with an inlet pipe A (31) connected to the circular vibrating screen A (2) and an inlet pipe B (33) connected to the circular vibrating screen B (4). The sedimentation section (38) is recessed downward to form a sedimentation tank. The bottom of the sedimentation tank is connected to a slag discharge pipe. The clean liquid section (36) is connected to an outlet pipe (35) connected to the feed cylinder (6). The filtrate section (39) is equipped with an internal filtration mechanism that allows the circular vibrating screen B (4) to flow into the filtrate for filtration and then into the sedimentation section (38). The outlet end of the internal filtration mechanism extends into the sedimentation tank to form a slope that facilitates the flow of liquid. The internal filtration mechanism can vibrate within the filtrate section (39).

2. The adhesive recovery and treatment system for a glue applicator according to claim 1, characterized in that: The horizontal plane of the purified liquid section (36) is lower than the horizontal plane of the filtrate section (39), and the horizontal plane of the sedimentation section (38) is lower than the horizontal plane of the purified liquid section (36).

3. The adhesive recovery and treatment system for a glue applicator according to claim 1, characterized in that: The internal filtration mechanism includes a tank, an inner screen (32) is provided in the direction of the liquid outlet of the tank close to the sedimentation section (38), a vibrator (34) is installed on the side of the tank away from the liquid outlet, and an elastic element is installed at the bottom of the tank to make the tank vibrate in the filtrate section (39).

4. The adhesive recovery and treatment system for a glue applicator according to claim 1, characterized in that: A barrier is provided at the junction of the sedimentation section (38) and the purified liquid section (36) to prevent impurities in the sedimentation section (38) from mixing into the purified liquid section (36). The barrier includes an inner filter screen (37).

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