CN204982540U - A surperficial glue applying device for papermaking in -process - Google Patents

Abstract

The utility model discloses a surface sizing device used in the papermaking process. The surface sizing device includes a sizing material storage tank, a pressure screen, a sizing machine, a sand remover, and a square vibrating screen. The material storage tank is connected with the pressure screen, the pressure screen is connected with the sizing machine, the sizing machine is connected with the desander, and the desander It communicates with the square vibrating screen, and the square vibrating screen communicates with the rubber material storage tank. Installing a desander can protect mechanical equipment from wear and tear, reduce the deposition of heavy objects in pipelines and trenches, and reduce the number of cleanings required due to large accumulations of debris. After further desanding of the backflow glue, the average lifespan is increased by 5-7 days.

Description

A surface sizing device used in papermaking process

technical field

The utility model relates to a surface sizing device used in the papermaking process.

Background technique

Surface sizing is an important process in papermaking, and its purpose is to improve the strength and surface properties of paper through starch. At the same time, surface sizing is used to add sizing agent to make the paper have water resistance. According to different processing methods, sizing is divided into two types: internal sizing and surface sizing. Internal sizing is to mix the sizing agent in the pulp when beating or batching, so that the fibers absorb the colloid, and then make paper; surface sizing is to spray the sizing agent on the formed paper when the paper is dry. on page. With the continuous improvement of waste paper recycling rate and the development of packaging paper industry, surface sizing has become an increasingly important and effective means to improve paper strength and surface printing performance. In the actual sizing process, most of the sizing materials need to be reflowed and reused. After sizing on the surface of the sizing machine, there are many heavy impurities discharged from the sizing material, which will affect the uniformity of sizing when accumulated to a certain amount, and will also cause surface wear on the sizing rubber roller, affecting product quality and spare parts. service life.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a surface sizing device used in the papermaking process.

In order to solve the above technical problems, the utility model takes the following technical solutions:

A surface sizing device used in the papermaking process, the surface sizing device includes a sizing material storage tank, a pressure screen, a sizing machine, a desander, a square vibrating screen, the sizing material storage tank and the The pressure screen is connected, the pressure screen is connected with the sizing machine, the sizing machine is connected with the desander, and the desander is connected with the square The vibrating sieve is connected, and the square vibrating sieve is connected with the rubber material storage tank.

Preferably, a first pump for driving the rubber from the rubber storage tank into the pressure screen is provided between the rubber material storage tank and the pressure screen.

Preferably, a second pump for driving the sizing material from the sizing machine into the desander is provided between the sizing machine and the desander.

Preferably, the square vibrating screen is provided with a slag discharge port and a recovery port, and the recovery port is connected to the rubber material storage tank.

Preferably, the sizing machine is provided with a coating head for evenly coating the sizing material on the paper

Due to the implementation of the above technical solutions, the utility model has the following advantages compared with the prior art:

According to the surface sizing device used in the papermaking process described in the utility model, the ash content of the glue liquid after the surface sizing of the sizing machine is reduced from 5-6% to 3-4% after being processed by the desander %, the difference in water resistance of the banner is controlled within 3g/m2. Having a desander protects mechanical equipment from wear and tear, reduces heavy deposits in pipelines and trenches, and reduces the number of cleanings required due to the accumulation of debris. After further desanding, the return glue has an average lifespan of 5-7 days.

Description of drawings

The utility model is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a structural representation of a surface sizing device used in the papermaking process described in the utility model,

Among them: 1. Rubber material storage tank; 2. Pressure screen; 3. Glue sizing machine; 4. Desander; 5. Square vibrating screen; 31. Coating head; 10. First pump; 20. Second pump.

detailed description

As shown in Figure 1, it is a surface sizing device used in the papermaking process described in the utility model, and the described surface sizing device includes a sizing material storage tank 1, a pressure screen 2, a sizing machine 3, a desanding Device 4, square vibrating screen 5, the sizing material storage tank 1 communicates with the pressure screen 2, the pressure screen 2 communicates with the sizing machine 3, and the sizing machine 3 communicates with the desander 4, the desander 4 communicates with the square vibrating screen 5, and the square vibrating screen 5 communicates with the rubber storage tank 1. A first pump 10 for driving the rubber from the rubber storage tank 1 into the pressure screen 2 is provided between the rubber storage tank 1 and the pressure screen 2 . A second pump 20 for driving the sizing material from the sizing machine 3 into the desander 4 is arranged between the sizing machine 3 and the desander 4 . The square vibrating screen 5 is provided with a slag discharge port and a recovery port, and the recovery port is connected with the rubber material storage tank 1 . The sizing machine 3 is provided with a coating head 31 for uniformly coating the sizing material on the paper.

The sizing process of the above-mentioned surface sizing device is as follows: the sizing material is added to the sizing material storage tank 1 of the loading station workstation, and the sizing material in the sizing material storage tank 1 is driven by the first pump 10 and delivered to the pressure Filter through sieve 2. Before the sizing material enters the sizing machine 3, all the sizing materials are filtered to ensure that the sizing material entering the sizing machine 3 has a high degree of cleanliness, thereby effectively ensuring the reliability of the sizing process and the quality of the paper after sizing Surface Quality. The pressure screen 2 mainly filters fiber impurities in the rubber material. A part of the sizing material of the sizing machine 3 is used by the coating head 31, and the coating head 31 evenly coats the sizing material on the surface of the paper, and the other part of the sizing material of the sizing machine 3 is sent into the desander through the second pump 20 4. The remaining glue after the coating head 31 is used is also sent to the desander 4 through the second pump 20 . Since there are many heavy impurities discharged from the sizing machine 3, the accumulation of a certain amount will affect the uniformity of sizing, and it will also cause surface wear to the sizing rubber roller, so after being treated by the desander 4 The ash content of the glue solution is reduced from 5-6% to 3-4%, and the difference in water resistance of the banner is controlled within 3g/m2, which protects mechanical equipment from wear and reduces the deposition of heavy objects in pipelines and grooves. The sizing material through the desander 4 flows into the square vibrating sieve 5, and the square vibrating sieve 5 performs vibratory filtration to effectively remove impurities and paper wool contained in the sizing material, and improve the cleanliness of the reusable sizing material At the same time, it can effectively reduce the filtration pressure of the pressure screen 2. The impurities filtered out by the square filter screen are discharged through the slag outlet and then incinerated. The filtered rubber material flows back into the rubber material storage tank 1 through the recovery port, realizing full automation of the rubber material recovery and reuse, reducing labor intensity and improving production efficiency.

The utility model has been described in detail above, but the utility model is not limited to the above-mentioned embodiments. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (5)

1. one kind for the surface sizing device in paper-making process, it is characterized in that: described surface sizing device comprises sizing material accumulator tank, pressurized screen, sizing applicator, desander, square vibrating screen, described sizing material accumulator tank is connected with described pressurized screen, described pressurized screen is connected with described sizing applicator, described sizing applicator is connected with described desander, described desander is connected with described square vibrating screen, and described square vibrating screen is connected with described sizing material accumulator tank.

2. according to claim 1 a kind of for the surface sizing device in paper-making process, it is characterized in that: the sizing material be provided with between described sizing material accumulator tank and described pressurized screen described in driving enters the first pump of pressurized screen from described sizing material accumulator tank.

3. according to claim 1 a kind of for the surface sizing device in paper-making process, it is characterized in that: be provided with between described sizing applicator and described desander for driving described sizing material to enter the second pump of desander from described sizing applicator.

4. according to claim 1 a kind of for the surface sizing device in paper-making process, it is characterized in that: described square vibrating screen offers slag-drip opening and recovery port, described recovery port is connected with described sizing material accumulator tank.

5. according to claim 1 a kind of for the surface sizing device in paper-making process, it is characterized in that: described sizing applicator is provided with the dispense tip for being coated in equably by sizing material on paper.