Ultra-light fine material continuous pulping equipment and pulping method

Abstract

The invention particularly relates to ultra-light fine material continuous pulping equipment and a pulping method. The pulping equipment comprises a pulping tank, wherein a first top cover is arrangedon the top of the pulping tank; a first stirring motor and a first feeding opening are arranged on the first top cover; a first stirring paddle is arranged on an output shaft of the first stirring motor; the first stirring paddle is positioned in the pulping tank; the first stirring opening comprises an ultra-light fine material inlet, an adhesive inlet, a process water inlet and a first materialreturn opening; a first water pipe, a second water pipe and a water film dust remover are also arranged on the first top cover; an atomization spray head and a material falling pipe are also arrangedinside the pulping tank; the ultra-light fine material continuous pulping equipment also comprises a buffer tank connected in series with the pulping tank. The continuous pulping method is used; thepartial backflow operation is added on the existing ultra-light fine material pulping process, so that the pulping process is continuous; the problem of instable pulp quality due to long pulping time,personnel error and accumulated error of the conventional intermittent pulping process can be effectively solved; in addition, the secondary stirring of the pulping material is uniform; the pulping material composition uniformity can be ensured.

Description

Technical field

[0001] The invention relates to the technical field of chemical environmental protection, in particular to an ultralight fine material continuous pulping equipment and a pulping method. Background technique

[0002] At present, every country in the world has no unified standard for the classification of superfine materials. Generally, ultra-light fine material refers to fine powder with a particle size of 1 μm to 100 μm. Common ultra-fine materials in the industry include heavy calcium carbonate powder, bauxite, kaolin, white carbon black, graphite powder, activated carbon, gypsum powder, titanium dioxide, bentonite, etc. These ultra-fine materials are important raw materials for modern industry. The ultra-fine material can be used in multiples to expand its application field after modification treatment. The modified ultrafine material is not only a filling material, but as an important component of the product, it can improve and improve the product such as st...

Examples

Embodiment 1

[0043] A continuous pulping equipment for ultra-light fine materials, such as figure 1 Shown, a kind of ultra-light fine material continuous pulping equipment:

[0044] Including a pulping tank 10, the top of the pulping tank 10 is provided with a top cover I11, the top cover I11 is provided with a stirring motor I12 and a feed port I, and the output shaft of the stirring motor I12 is provided with a stirring blade I121, The mixing paddle I 121 is located in the pulping tank 10. The feed inlet I includes an ultra-light fine material inlet 131, an additive inlet 132, a process water inlet 133, and a feed back inlet I 136; the additive inlet 132 is used to add additives, which can come Adjust the dispersion ability of fine materials in the liquid, and the amount of additives added is selected according to the characteristics of the slurry material.

[0045] The top cover I11 is also provided with a water pipe I134, a water pipe II135, and a water film dust collector 14. The slurry ta...

Embodiment 2

[0055] A continuous pulping method for ultra-light fine materials, such as image 3 Shown: Take the ultra-light fine material continuous pulping equipment in Example 1 as the pulping equipment of this embodiment; take ultra-fine graphite powder pulping as an example; where the pulping tank 10 and the buffer tank 20 in the pulping equipment Effective volume is 30m 3 , High-speed shearing pump 30 delivery capacity 25m 3 / h, the conveying capacity of the centrifugal pump 40 is 20m 3 / h, the qualified finished slurry conveying capacity is 10m 3 / h, specifically including the following steps:

[0056] Step (1): Close valve I311 and open valve II321, and continuously add process water and sodium dodecylbenzene sulfonate solution into the pulping tank 10; the added amount of process water is 7m 3 / h; The mass concentration of the sodium dodecylbenzene sulfonate solution is 25%, and the addition amount of the sodium dodecylbenzene sulfonate solution is 0.5m 3 / h; Get the diluted additive ...

Embodiment 3

[0067] A method for continuous pulping of ultra-light fine materials, such as image 3 Shown: Take the ultra-light fine material continuous pulping equipment in Example 1 as the pulping equipment of this embodiment; use ultra-fine TiO 2 Take pulping as an example; the effective volume of pulping tank 10 and buffer tank 20 in the pulping equipment are both 50m 3 , High-speed shear pump 30 flow 45m 3 / h, centrifugal transfer pump 40 flow rate 35m 3 / h, downstream process throughput 15m 3 / h, specifically including the following steps:

[0068] Step (1): Close valve I311 and open valve II321, and continuously add process water and sodium dodecylbenzene sulfonate solution into the pulping tank 10; the added amount of process water is 13m 3 / h; The mass concentration of the sodium dodecylbenzene sulfonate solution is 15%, and the addition amount of the sodium dodecylbenzene sulfonate solution is 0.5m 3 / h; Get the diluted additive solution;

[0069] Step (2): When the diluted additive so...

Technical field

[0001] The invention relates to the technical field of chemical environmental protection, in particular to an ultralight fine material continuous pulping equipment and a pulping method. Background technique

[0002] At present, every country in the world has no unified standard for the classification of superfine materials. Generally, ultra-light fine material refers to fine powder with a particle size of 1 μm to 100 μm. Common ultra-fine materials in the industry include heavy calcium carbonate powder, bauxite, kaolin, white carbon black, graphite powder, activated carbon, gypsum powder, titanium dioxide, bentonite, etc. These ultra-fine materials are important raw materials for modern industry. The ultra-fine material can be used in multiples to expand its application field after modification treatment. The modified ultrafine material is not only a filling material, but as an important component of the product, it can improve and improve the product such as st...

Examples

Embodiment 1

[0043] A continuous pulping equipment for ultra-light fine materials, such as figure 1 Shown, a kind of ultra-light fine material continuous pulping equipment:

[0044] Including a pulping tank 10, the top of the pulping tank 10 is provided with a top cover I11, the top cover I11 is provided with a stirring motor I12 and a feed port I, and the output shaft of the stirring motor I12 is provided with a stirring blade I121, The mixing paddle I 121 is located in the pulping tank 10. The feed inlet I includes an ultra-light fine material inlet 131, an additive inlet 132, a process water inlet 133, and a feed back inlet I 136; the additive inlet 132 is used to add additives, which can come Adjust the dispersion ability of fine materials in the liquid, and the amount of additives added is selected according to the characteristics of the slurry material.

[0045] The top cover I11 is also provided with a water pipe I134, a water pipe II135, and a water film dust collector 14. The slurry ta...

Embodiment 2

[0055] A continuous pulping method for ultra-light fine materials, such as image 3 Shown: Take the ultra-light fine material continuous pulping equipment in Example 1 as the pulping equipment of this embodiment; take ultra-fine graphite powder pulping as an example; where the pulping tank 10 and the buffer tank 20 in the pulping equipment Effective volume is 30m 3 , High-speed shearing pump 30 delivery capacity 25m 3 / h, the conveying capacity of the centrifugal pump 40 is 20m 3 / h, the qualified finished slurry conveying capacity is 10m 3 / h, specifically including the following steps:

[0056] Step (1): Close valve I311 and open valve II321, and continuously add process water and sodium dodecylbenzene sulfonate solution into the pulping tank 10; the added amount of process water is 7m 3 / h; The mass concentration of the sodium dodecylbenzene sulfonate solution is 25%, and the addition amount of the sodium dodecylbenzene sulfonate solution is 0.5m 3 / h; Get the diluted additive ...

Embodiment 3

[0067] A method for continuous pulping of ultra-light fine materials, such as image 3 Shown: Take the ultra-light fine material continuous pulping equipment in Example 1 as the pulping equipment of this embodiment; use ultra-fine TiO 2 Take pulping as an example; the effective volume of pulping tank 10 and buffer tank 20 in the pulping equipment are both 50m 3 , High-speed shear pump 30 flow 45m 3 / h, centrifugal transfer pump 40 flow rate 35m 3 / h, downstream process throughput 15m 3 / h, specifically including the following steps:

[0068] Step (1): Close valve I311 and open valve II321, and continuously add process water and sodium dodecylbenzene sulfonate solution into the pulping tank 10; the added amount of process water is 13m 3 / h; The mass concentration of the sodium dodecylbenzene sulfonate solution is 15%, and the addition amount of the sodium dodecylbenzene sulfonate solution is 0.5m 3 / h; Get the diluted additive solution;

[0069] Step (2): When the diluted additive so...

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