CN112501944B - A kind of paper dyeing equipment - Google Patents

Abstract

The invention relates to the technical field of paper dyeing, and discloses a paper dyeing device. A batching mechanism, a dyeing mechanism and a conveying mechanism are installed on a rack; the batching mechanism includes a dye dissolving tank and a dye storage tank, and the dye dissolving tank is provided with a dye storage tank. The first overflow pipe that is communicated, the dye dissolving tank and the dye storage tank are connected with a first return pump, the dye dissolving tank and the dye storage tank are connected with a flow pipe located below the overflow pipe, and the flow pipe is provided with There is a first valve; the dyeing mechanism includes a dyeing tank communicated with the dye storage tank, a number of dyeing rollers are rotatably connected in the dyeing tank, the upper part of the dyeing tank is connected with a second overflow pipe, and the bottom of the dyeing tank is connected with a second return pump, The second return pump is communicated with the upper part of the dyeing tank; the conveying mechanism includes a paper drawing roller located on one side of the dyeing tank and a first conveying roller located above the dyeing tank. The invention has a simple structure, so that the steel paper can be dyed so that the color depth of the steel paper is consistent.

Description

A kind of paper dyeing equipment

technical field

The invention relates to the technical field of paper dyeing, and specifically discloses a paper dyeing device.

Background technique

Steel paper is a special paper that has been processed by a special process, and it is mostly used as insulation and heat insulation materials. The production process of steel paper is as follows: the crushed pulp is beaten and dyes are added, after the pulp is mixed, it passes through the conical desander, pressure screen, high-level box, and then goes to the paper machine, and then passes through the headbox, wire section, and press section. After the drying section, it is rolled into base paper, and the multi-layer base paper passes through the gelling section, the aging section, the desalting section, the dyeing section, and the drying section, and then is rolled into a steel paper roll, and then processed into a steel paper.

The pulp added with dyes will lose part of the slag discharge after passing through the conical desander, and a lot of white water will be lost in the wire part of the paper machine. After being dried by multiple high-temperature drying cylinders, the color will decrease, and the color of the steel paper produced will not meet the requirements. , and during the production process of steel paper, the error of beating concentration, the residual pulp at the bottom of the pulp tank, the water content of the pulp board, etc. will cause errors in the amount of dye added, which will lead to inconsistent color depth of steel paper and low quality of steel paper.

Contents of the invention

The invention intends to provide a paper dyeing device, so as to make the paper dyeing more uniform and improve the quality of the paper.

In order to achieve the above object, the basic scheme of the present invention is as follows: a kind of paper dyeing equipment includes a frame, and a batching mechanism, a dyeing mechanism and a transmission mechanism are installed on the frame; the batching mechanism includes a dye dissolving tank and a dye storage tank, and the dye dissolving tank A first overflow pipe communicating with the dye storage tank is provided, a first return pump is communicated between the dye dissolving tank and the dye storage tank, and a flow pipe located below the overflow pipe is communicated between the dye dissolving tank and the dye storage tank , the flow pipe is provided with a first valve; the dyeing mechanism includes a dyeing tank connected with the dye storage tank, a number of dyeing rollers are rotatably connected in the dyeing tank, the upper part of the dyeing tank is connected with a second overflow pipe, and the bottom of the dyeing tank is connected There is a second backflow pump, and the second backflow pump communicates with the upper part of the dyeing tank; the conveying mechanism includes a paper-leading roller located on one side of the dyeing tank and a first conveying roller located above the dyeing tank.

Principles and beneficial effects of the present invention: the dyeing equipment is arranged after the desalination step of the wet steel paper, so as to further dye the wet steel paper after the desalination of the wet steel paper. According to the color depth of the obtained wet steel paper, the amount of dye added is determined. According to this added amount, the dye in the dye dissolving tank (keep overflowing and the liquid level is constant), and the dye in the dye dissolving tank is first sent to the dye storage through the first overflow pipe. tank, and then transported back to the dye dissolving tank through the first return pump, so that the circulating dye solution will not precipitate and the concentration of the dye solution is uniform. When the liquid level of the dye solution in the dye dissolving tank is lower than the first overflow pipe and the dye When dissolving the connection of the tank, open the first valve, and send the dye liquid in the dye dissolving tank into the dye storage tank through the flow pipe. The cooperation of the paper threading roller and the first conveying roller makes the wet steel paper pass through the dyeing tank and the dyeing roller, so as to achieve the purpose of dyeing the wet steel paper.

The uniform dye liquid enters the dyeing tank from the dye storage tank, and the dyeing tank circulates the dye liquid up and down through the second reflux pump to stabilize the concentration of the dye liquid, and at this time, the dye liquid in the dyeing tank is drained through the second overflow pipe. Carry out discharging to stabilize the liquid level of the dyeing tank. The liquid level of the dye liquid in the dyeing tank is constant, and the position of the wet steel paper immersed in the dye liquid is constant, so that the dyeing of the wet steel paper is uniform, and it is also avoided that the dye liquid level is too low to be dyed. The dye solution overflowed from the second overflow pipe is recovered and reused.

Compared with the existing technology, after the wet steel paper is desalted and dyed, the dye directly acts on the surface of the wet steel paper, and the dye attached to the surface of the wet steel paper is completely visible to the naked eye after light reflection, so the color of the wet steel paper deepens , and according to the depth of the color of the wet steel paper, adjust the amount of dye added in the dye dissolving tank (that is, the concentration of the dye solution), so that the color depth of a batch of steel paper is uniform.

Further, a second conveying mechanism is provided below the conveying mechanism, and the second conveying mechanism includes several second conveying rollers, the second conveying rollers are located on the side of the dyeing tank away from the delivery roller, and the end of the conveying direction of the second conveying rollers is provided with several Dryer.

Beneficial effects: the wet steel paper is conveyed by the first conveying roller and the second conveying roller to the drying cylinder, so that the wet steel paper is dried rapidly and the dyeing effect is improved.

Further, it also includes a hot air drying chamber, a hot air blower is installed in the hot air drying chamber, and the second conveying roller is located in the hot air drying chamber.

Beneficial effects: the hot air blows dry the hot air generated by the indoor hot air blower to the wet steel paper conveyed by the second conveying roller to preliminarily dry the wet steel paper; at the same time, the resistance generated by the hot air can reduce the dye on the wet steel paper The probability of a droplet falling.

Further, the dyeing tank is provided with a supporting plate located at the end of the dyeing roller in the conveying direction, and a plurality of extrusion rollers are rotatably connected to the supporting plate.

Beneficial effect: the extrusion roller can squeeze out excess dye liquid on the wet steel paper to fall back into the dyeing tank, reducing the waste of dye liquid.

Further, several tension rollers are arranged between the first conveying roller and the paper delivery roller.

Beneficial effect: the tension roller tensions the wet steel paper, so that the wet steel paper can be conveyed and the liquid droplet can be squeezed out.

Further, there are at least three dyeing rollers.

Beneficial effects: the dyeing roller cooperates with the first conveying roller, so that the wet steel paper enters the dyeing tank at least three times, so that the wet steel paper can be dyed multiple times to ensure the dyeing effect of the wet steel paper.

Further, a stirring mechanism is arranged in the first overflow pipe and the flow pipe.

Beneficial effects: the dye liquid in the first overflow pipe and the flow pipe is stirred by the stirring mechanism, so that the dye liquid is more uniform.

Further, the stirring mechanism includes a fixed ring and several blades slidingly connected with the fixed ring, and adjacent blades are fixedly connected.

Beneficial effects: when the dye liquid passes through the blades, the force of the dye liquid flow will push the blades to rotate, and then make the blades stir the dye liquid to a certain extent, so that the dye liquid is more uniform.

Further, the fixed ring is provided with a chute, and the blades are fixed with sliders that slide and cooperate with the chute.

Beneficial effect: during the rotation process of the blade, the chute and the sliding block cooperate to achieve the purpose of sliding fit and facilitate the rotation of the blade.

Further, the second overflow pipe communicates with a branch pipe located at the bottom of the dyeing tank.

Beneficial effects: when the liquid level of the dye liquid in the dyeing tank is lower than the second overflow pipe, overflow is performed through the branch pipe to keep the liquid level in the dyeing tank constant.

Description of drawings

Fig. 1 is the axonometric view of the paper dyeing equipment in the first embodiment of the present invention;

Fig. 2 is a top view of paper dyeing equipment in Embodiment 1 of the present invention;

Fig. 3 is the E-E direction sectional view of Fig. 2;

Fig. 4 is a side view of the paper dyeing equipment in Embodiment 1 of the present invention;

Figure 5 is a partial sectional view of paper dyeing equipment in Example 2 of the present invention;

Fig. 6 is a schematic diagram of the stirring mechanism in the second embodiment of the present invention.

Detailed ways

The following is further described in detail through specific implementation methods:

Reference numerals in the accompanying drawings include: dye dissolving tank 11, return pipe 12, first return pump 13, first valve 14, first overflow pipe 15, dye storage tank 16, second valve 17, feeding pipe 18. Threading roller 21, conveying mechanism 22, first conveying roller 23, second conveying mechanism 24, second conveying roller 25, hot air drying chamber 26, drying cylinder 31, dyeing tank 41, dyeing roller 42, second return flow Pipe 43, second return pump 44, second overflow pipe 45, branch pipe 46, squeeze roller 51, stirring mechanism 61, fixed ring 62, chute 63, blade 64, slider 65.

Embodiment one:

Basically as shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4: a kind of paper dyeing equipment, comprises frame, and batching mechanism, dyeing mechanism and transmission mechanism 22 are installed on the frame.

The batching mechanism includes a dye dissolving tank 11 and a dye storage tank 16 located below the dye dissolving tank 11. The dye dissolving tank 11 is detachably connected to the frame by bolts, and the dye storage tank 16 is bolted on the frame. The dye dissolving tank 11 is communicated with a first overflow pipe 15 communicating with the dye storage tank 16, and a flow pipe is arranged below the first overflow pipe 15, and the flow pipe is communicated with a first valve 14 communicating with the dye dissolving tank 11 , the flow pipe communicates with the dye storage tank. The dye storage tank 16 is communicated with a first return pump 13 , and the first return pump 13 is communicated with the dye dissolving tank 11 . In this embodiment, according to the color depth of the obtained wet steel paper, the amount of dye added is determined. According to this amount, in the dye dissolving tank 11, initially, the dye liquid is sent into the dye storage tank through the first overflow pipe 15. , and then the dye solution in the dye storage tank 16 is sent back in the dye dissolving tank 11 by the first reflux pump 13, so that the dye solution is circulated, preventing the dye solution from precipitating in the dye storage tank 16, and making the concentration of the dye solution more uniform.

The dyeing mechanism includes a dyeing tank 41, a feeding pipe 18 is communicated with the dye storage tank, the feeding pipe 18 is communicated with a second valve 17, and the end of the feeding pipe 18 communicated with the dyeing tank 41 is located in the dyeing tank 41. bottom of. Several dyeing rollers 42 are rotatably connected in the dyeing tank 41, and there are three dyeing rollers 42 in the present embodiment. Bolt on the frame is fixed with the second return pump 44, the second return pump 44 communicates with the bottom of the dyeing tank 41, the second return pump 44 communicates with the second return pipe 43 communicated with the dyeing tank 41 top, the dyeing tank 41 communicates with The second overflow pipe 45 , the lower part of the second overflow pipe 45 communicates with a branch pipe 46 , and the branch pipe 46 communicates with a third valve communicating with the dyeing tank 41 . In this embodiment, the dye liquid in the dyeing storage tank is sent into the dyeing tank 41 through the second valve 17 and the delivery pipe 18, and the dye liquid in the dyeing tank 41 is circulated through the second return pump 44, so that the dye liquid No precipitation, so that the concentration of the dye solution is more uniform. At the same time, the second overflow pipe 45 is used to ensure that the liquid level of the dye solution is constant. When the liquid level of the dye solution in the dyeing tank 41 gradually decreases, the third valve is opened. Cooperate with the branch pipe 46 and the second overflow pipe 45 to discharge liquid, and then ensure that the liquid level of the dye solution in the dyeing tank 41 is constant, so that when the wet steel paper is dyed, the position where the wet steel paper is immersed in the dye solution is constant, and the wet steel paper is wet. The steel paper is evenly dyed, and the dye level is too low to avoid dyeing. Certainly, the dye liquid flowing out from the second overflow pipe 45 and the branch pipe 46 can be recovered and further utilized.

The conveying mechanism 22 comprises the paper threading roller 21 (the paper threading roller that leads the wet steel paper out from the desalination section after the wet steel paper is desalted) and several first conveying rollers 23 positioned above the dyeing tank 41 that is rotatably connected on the frame. A motor is fixed with bolts on the frame, and the output shaft of the motor is fixedly connected with the threading roller 21 by coaxial bolts. Tension rollers attached to the frame. The dyeing tank 41 is provided with a second conveying mechanism 24 away from the side of the threading roller 21, the second conveying mechanism 24 includes some second conveying rollers 25, and the end of the conveying direction of the second conveying rollers 25 is provided with some drying cylinders 31, and the drying cylinders 31 is arranged in a triangle, and several tension rollers are arranged between the drying cylinder 31 and the second conveying roller 25 . In this embodiment, the drying cylinder 31 is an existing technology, that is, water vapor is sent into the drying cylinder 31 to heat the drying cylinder 31, and then the drying cylinder 31 dries the wet steel paper, and the drying cylinder 31 and the frame rotate connect. Also comprise the hot-air drying chamber 26 that is positioned at one side of dyeing tank 41 in the present embodiment, the second conveying roller 25 is positioned at the hot-air drying chamber 26, is equipped with fan and the heater that communicates with fan in the hot-air drying chamber 26 (Fig. Not shown in ), the fan sends gas into the heater, the gas discharged from the heater is hot gas, and the hot gas is blown to the second conveying roller 25 . A support plate is fixed on the dyeing tank 41, and the support plate is positioned at the end of the conveying direction of the dyeing roller 42, and a plurality of extruding rollers 51 are connected to the support plate along its vertical rotation. As shown in Figure 4, the transmission route of the wet steel paper is: the wet steel paper is released from the threading roller 21, then passes through the dyeing tank 41, then passes through the second transmission mechanism 24, and finally is sent to the drying cylinder 31.

When the wet steel paper is in the dyeing tank 41, it is sent to the dyeing roller 42 by the first delivery roller 23, and then sent to the first delivery roller 23 by the dyeing roller 42, so that it circulates three times, so that the wet steel paper is dyed multiple times to obtain Make sure that the wet steel paper is fully dyed. Then the wet steel paper is conveyed from the dyeing tank 41 to the extrusion roller 51, and the extrusion roller 51 squeezes the excess dye solution and falls back into the dyeing tank 41, so as to avoid the waste of the dye solution. Then from the squeezing roller 51 to the first conveying roller 23, the first conveying roller 23 conveys the wet steel paper to the second conveying roller 25, so that the cycle is repeated, and then from the first conveying roller 23 to the tension roller, finally Transfer to drying cylinder 31. When the wet steel paper is conveyed on the second conveying roller 25, start the hot air drying chamber, and the hot air drying chamber carries out preliminary drying to the wet steel paper soaked in the dye solution, and the resistance of the hot air is to reduce the dye liquid dripping on the wet steel paper. . When the wet steel paper is conveyed on the drying cylinder 31, since the drying cylinder 31 is arranged in a triangle, both sides of the wet steel paper can be attached to the drying cylinder 31 during the conveying process, and then both sides can be dried to ensure The drying effect of wet steel paper.

Embodiment two:

The difference between the second embodiment and the first embodiment is that, as shown in Figure 5 and Figure 6 , a stirring mechanism 61 is provided in the first return pipe 12 , the flow pipe and the first overflow pipe 15 .

Stirring mechanism 61 comprises fixed ring 62 and several blades 64, has chute 63 on the fixed ring 62, and one end of adjacent blade 64 is all fixedly connected by bolt, and the slider 65 that slides with chute 63 is welded on blade 64 .

The specific implementation process is as follows:

When the dye liquid passes through the blade 64, the force of the flow of the dye liquid will drive the blade 64 to rotate, and then the blade 64 will stir the dye liquid to make the dye liquid more uniform.

What has been described above is only an embodiment of the present invention, and common knowledge such as specific structures and/or characteristics known in the scheme will not be described too much here. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (9)

1. A paper dyeing equipment, includes the frame, its characterized in that: the frame is provided with a batching mechanism, a dyeing mechanism and a conveying mechanism;

the batching mechanism comprises a dye dissolving tank and a dye storage tank, the dye dissolving tank is provided with a first overflow pipe communicated with the dye storage tank, a first reflux pump is communicated between the dye dissolving tank and the dye storage tank, a flow pipe positioned below the overflow pipe is communicated between the dye dissolving tank and the dye storage tank, and a first valve is arranged on the flow pipe;

the dyeing mechanism comprises a dyeing tank, a material conveying pipe is communicated between the dyeing tank and a dye storage tank, a second valve is communicated on the material conveying pipe, one end of the material conveying pipe communicated with the dyeing tank is positioned at the bottom of the dyeing tank, a plurality of dyeing rollers are rotatably connected in the dyeing tank, the bottom of the dyeing tank is communicated with a second reflux pump, the second reflux pump is communicated with a second reflux pipe communicated with the upper part of the dyeing tank, the dyeing tank is communicated with a second overflow pipe, the lower part of the second overflow pipe is communicated with a branch pipe, and the branch pipe is communicated with a third valve communicated with the dyeing tank;

the conveying mechanism comprises a paper guide roller positioned on one side of the dyeing tank and a first conveying roller positioned above the dyeing tank.

2. A paper dyeing apparatus as claimed in claim 1, characterized in that: the second conveying mechanism is arranged below the conveying mechanism and comprises a plurality of second conveying rollers, the second conveying rollers are located on one side, away from the paper guiding roller, of the dyeing tank, and a plurality of drying cylinders are arranged at the tail ends of the second conveying rollers in the conveying direction.

3. A paper dyeing apparatus as claimed in claim 2, characterized in that: the device also comprises a hot air blow-drying chamber, wherein an air heater is installed in the hot air blow-drying chamber, and the second conveying roller is positioned in the hot air blow-drying chamber.

4. The paper dyeing apparatus according to claim 3, characterized in that: the dyeing tank is provided with a supporting plate positioned at the tail end of the conveying direction of the dyeing roller, and the supporting plate is rotatably connected with a plurality of squeezing rollers.

5. The paper dyeing apparatus according to claim 4, characterized in that: a plurality of tensioning rollers are arranged between the first conveying roller and the paper leading roller.

6. The paper dyeing apparatus according to claim 5, characterized in that: the dyeing roller is at least three.

7. The paper dyeing apparatus according to claim 1, characterized in that: stirring mechanisms are arranged in the first overflow pipe and the flow pipe.

8. The paper dyeing apparatus according to claim 7, characterized in that: the stirring mechanism comprises a fixing ring and a plurality of blades which are in sliding connection with the fixing ring, and adjacent blades are fixedly connected.

9. The paper dyeing apparatus according to claim 8, characterized in that: the fixed ring is provided with a sliding chute, and the blades are fixed with sliding blocks which are in sliding fit with the sliding chute.

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