阅读说明：本技术 一种制浆造纸白水细小纤维和填料回用及白水封闭使用装置 (White water fine fiber and filler recycling and white water closed using device for pulping and papermaking ) 是由 刘洁 王安睿 付六生 宁荣亮 幸世光 陈庆建 于 2020-10-27 设计创作，主要内容包括：本发明涉及一种制浆造纸白水细小纤维和填料回用及白水封闭使用装置,包括一号超声波白水处理塔,所述一号超声波白水处理塔的右侧设置有二号超声波白水处理塔。该装置与现有主流造纸白水处理工艺设备相比,该方案中纸机白水中的纤维以及填料通过超声波白水处理塔的沉降分离系统得以大量回收重利用,降低吨纸浆料消耗量；同时白水进入超声波白水处理塔前经过离子置换器的处理,极大的去除了系统内的阴离子杂质垃圾,大大减少纸业抄造过程中的断纸、阻塞、黏辊等问题,提高纸页质量,提高企业生产效率；超声波白水处理塔内设置有多个超声波发生器,通过超声波的空化作用,使白水内的微生物死亡,解决白水循环使用过程中的发酸发臭问题。(The invention relates to a device for recycling small fibers and fillers in white water of pulping and papermaking and sealing the white water. Compared with the existing mainstream papermaking white water treatment process equipment, the device has the advantages that fibers and fillers in the white water of the paper machine can be largely recycled and reused through a settling separation system of the ultrasonic white water treatment tower, and the consumption of paper pulp per ton is reduced; meanwhile, the white water is treated by the ion displacer before entering the ultrasonic white water treatment tower, so that anionic impurity garbage in the system is greatly removed, the problems of paper breaking, blockage, roller adhesion and the like in the papermaking process of the paper industry are greatly reduced, the paper quality is improved, and the production efficiency of enterprises is improved; a plurality of ultrasonic generators are arranged in the ultrasonic white water treatment tower, microorganisms in the white water are killed through the cavitation of ultrasonic waves, and the problem of souring and stink generation in the recycling process of the white water is solved.)

1. The utility model provides a pulping papermaking plain boiled water tiny fiber and filler retrieval and plain boiled water seal use device, includes No. one ultrasonic wave plain boiled water treatment tower (1), its characterized in that: a second ultrasonic wave white water treatment tower (18) is arranged on the right side of the first ultrasonic wave white water treatment tower (1), and the second ultrasonic wave white water treatment tower (18) is connected with the first ultrasonic wave white water treatment tower (1) through a supernatant fluid connecting pipe (10), wherein;

an ion displacer (2) is arranged on the upper left side of the first ultrasonic white water treatment tower (1), an ultrasonic generator (3) is arranged in a connecting pipeline between the first ultrasonic white water treatment tower (1) and the ion displacer (2), the first ultrasonic white water treatment tower (1) and the second ultrasonic white water treatment tower (18) are both provided with a water distributor (6) for white water to enter the treatment tower, the water distributor (6) is supported by a support frame (7), a triangular cap type diversion cap (4) is arranged in the water distributor (6), the diversion cap (4) is supported by a support frame (5), the white water can be uniformly distributed in the water distributor (6) and the water flow speed is reduced, a flow regulating valve (19) is arranged at the cone bottom (11) of the first ultrasonic white water treatment tower (1) and is connected with a paper machine fan pump (12), a crushing pump (27) is arranged at the cone bottom (11) of the second ultrasonic white water treatment tower (18), the outer wall of the left side of the first ultrasonic wave white water treatment tower (1) is provided with a ladder (16), the first ultrasonic wave white water treatment tower (1) and the second ultrasonic wave white water treatment tower (18) are supported by six thick-wall steel pipes (17), the pipe diameter of each thick-wall steel pipe (17) is determined by the volume of the treatment tower, the thick-wall steel pipes (17) are fixed on a steel reinforced concrete base (25) which is designed to bear and be hardened, six steel plates (26) are pre-embedded on the steel reinforced concrete base (25), and after tower crane piles and core are treated by white water ultrasonic waves, the six support pipes (17) are welded on the pre-embedded steel plates (26).

2. The apparatus for recycling pulp making and papermaking white water fine fibers and fillers and sealing the white water according to claim 1, wherein: a ultrasonic wave white water treatment tower (1) and No. two ultrasonic wave white water treatment tower (18) tops are provided with sampling bench (15), and an ultrasonic wave white water treatment tower (1) and No. two ultrasonic wave white water treatment tower (18) are connected by safety corridor (22), safety corridor (22) and sampling bench (15) all are provided with guardrail (23).

3. The apparatus for recycling pulp making and papermaking white water fine fibers and fillers and sealing the white water according to claim 1, wherein: a plurality of ultrasonic generators (3) are arranged at specific positions of the inner periphery of the first ultrasonic wave white water treatment tower (1) and the second ultrasonic wave white water treatment tower (18).

4. The apparatus for recycling pulp making and papermaking white water fine fibers and fillers and sealing the white water according to claim 1, wherein: an ultra-clear water pipe (24) is arranged on the upper right of the second ultrasonic white water treatment tower (18), and the clear water pipe (24) is connected with an electric regulating valve (21).

5. The apparatus for recycling pulp making and papermaking white water fine fibers and fillers and sealing the white water according to claim 1, wherein: and the middle upper part of the second ultrasonic wave white water treatment tower (18) is provided with an ultra-fine filter (13), and the ultra-fine filter (13) is connected with a paper machine cleaning pump (14).

6. The apparatus for recycling pulp making and papermaking white water fine fibers and fillers and sealing the white water according to claim 1, wherein: a differential pressure liquid level transmitter (20) is arranged at the conical bottom (11) of the second ultrasonic wave white water treatment tower (18), and the differential pressure liquid level transmitter (20) is interlocked with an electric regulating valve (21).

7. The apparatus for recycling pulp making and papermaking white water fine fibers and fillers and sealing the white water according to claim 1, wherein: the volumes of the first ultrasonic wave white water treatment tower (1) and the second ultrasonic wave white water treatment tower (18) are determined by the white water amount of a paper machine system, and the volume of the general ultrasonic wave white water treatment tower meets four times of the white water amount, namely the retention time of the white water in the ultrasonic wave treatment tower is four hours.

Technical Field

The invention relates to the field of relevant pulping and papermaking equipment, in particular to a device for recycling small fibers and fillers in white water of pulping and papermaking and sealing the white water.

Background

Clean production is a necessary trend of sustainable development of the paper industry, although the process is at present heavy and far; the latest published 'discharge standard of water pollutants for paper industry' of the national environmental protection administration plays a positive promoting role in the development of the process; in the pulping and papermaking industry, the recycling of a water system is an important clean production way; due to the complexity of the pulp bleaching process, the comprehensive implementation of water closed circulation is currently very difficult; from the development situation of the related technology in the international world at present, the method is feasible to recycle the white water in the paper machine system; the discharge amount of white water in the paper making process depends on the closed circulation degree of the white water in the paper making system; the higher the closed circulation degree of the white water is, the more easily substances such as metal ions, various inorganic salts and the like in the system are excessively accumulated and microorganisms grow and reproduce, so that the normal operation and the product quality of a paper machine are influenced, and therefore, the removal of colloids and various dissolved substances in the white water for papermaking is very necessary for realizing the fully-closed circulation use of the water for papermaking.

The treatment of white water in a paper mill has economic significance in the aspects of saving fibers, fillers and the like, and also has significance in the aspects of utilizing waste water, preventing pollution, saving heat energy and the like; the existing white water cannot be recycled, the suspended solid content in the white water is high, the white water cannot be completely treated during discharge, and the white water cannot replace clear water to be reused in the pulping and papermaking processes, so that the clear water consumption is reduced, the wastewater discharge amount and the solid loss amount are reduced.

Disclosure of Invention

The invention aims to provide a device for recycling small fibers and fillers in white water for pulping and papermaking and for sealing the white water, which solves the problems that the existing white water in the background art cannot be recycled, has more suspended solid content in the white water, cannot be completely treated during discharge, cannot replace clean water to be reused in the pulping and papermaking process, so that the use level of the clean water is reduced, and the discharge amount of waste water and the loss amount of the solid content are reduced.

The technical scheme adopted by the invention is as follows: a device for recycling small fibers and fillers in white water of pulping and papermaking and using the white water in a closed mode comprises a first ultrasonic white water treatment tower, wherein a second ultrasonic white water treatment tower is arranged on the right side of the first ultrasonic white water treatment tower, and the second ultrasonic white water treatment tower is connected with the first ultrasonic white water treatment tower through a supernatant connecting pipe;

the left upper side of the first ultrasonic wave white water treatment tower is provided with an ion displacer, an ultrasonic generator is arranged in a connecting pipeline between the first ultrasonic wave white water treatment tower and the ion displacer, the first ultrasonic wave white water treatment tower and the second ultrasonic wave white water treatment tower are both provided with flow distributors for white water to enter the treatment tower, the flow distributors are supported by a support frame, triangular cap type diversion caps are arranged in the flow distributors, the diversion caps are supported by the support frame, the white water can be uniformly distributed in the flow distributors, the water flow speed is reduced at the same time, the conical bottom of the first ultrasonic wave white water treatment tower is provided with a flow regulating valve and is connected with a paper machine fan pump, the conical bottom of the second ultrasonic wave white water treatment tower is provided with a pulp crushing pump, the left outer wall of the first ultrasonic wave white water treatment tower is provided with a ladder stand, and the first ultrasonic wave white water treatment tower and the second ultrasonic wave white water treatment tower are both supported by six thick-wall steel pipes, the pipe diameter of the thick-wall steel pipe is determined by the volume of the treatment tower, the thick-wall steel pipe is fixed on a measured bearing and hardened reinforced concrete base, six steel plates are pre-embedded on the reinforced concrete base, and after the tower crane pile is treated by white water ultrasonic waves and the core is leveled, six support pipes are welded on the pre-embedded steel plates.

Furthermore, No. one ultrasonic wave plain boiled water treatment tower and No. two ultrasonic wave plain boiled water treatment tower tops are provided with the sampling bench, and No. one ultrasonic wave plain boiled water treatment tower and No. two ultrasonic wave plain boiled water treatment towers are connected by the safety corridor, safety corridor and sampling bench all are provided with the guardrail.

Furthermore, a plurality of ultrasonic generators are arranged at specific positions on the whole body inside the first ultrasonic wave white water treatment tower and the second ultrasonic wave white water treatment tower.

Furthermore, a super clean water pipe is arranged on the upper right of the second ultrasonic wave white water treatment tower, and the clean water pipe is connected with an electric regulating valve.

Furthermore, an ultra-micro filter is arranged at the upper middle part of the second ultrasonic wave white water treatment tower and is connected with a paper machine cleaning pump.

Furthermore, a differential pressure liquid level transmitter is arranged at the conical bottom of the second ultrasonic wave white water treatment tower and is interlocked with an electric regulating valve.

Furthermore, the volumes of the first ultrasonic white water treatment tower and the second ultrasonic white water treatment tower are determined by the white water amount of the paper machine system, and the volume of the ultrasonic white water treatment tower generally meets four times of the white water amount, namely the white water stays in the ultrasonic white water treatment tower for four hours.

The invention has the beneficial effects that:

compared with the existing mainstream papermaking white water treatment process equipment, the device adopts the technical scheme that the fibers and the fillers in the white water of the paper machine can be largely recycled and reused through a settling separation system of the ultrasonic white water treatment tower, so that the consumption of paper pulp per ton is reduced; meanwhile, the white water is treated by the ion displacer before entering the ultrasonic white water treatment tower, so that anionic impurity garbage in the system is greatly removed, the problems of paper breaking, blockage, roller adhesion and the like in the papermaking process of the paper industry are greatly reduced, the paper quality is improved, and the production efficiency of enterprises is improved; moreover, a plurality of ultrasonic generators are arranged in the ultrasonic white water treatment tower, microorganisms in the white water are killed through the cavitation of ultrasonic waves, and the problem of souring and stink generation in the recycling process of the white water is solved.

Drawings

Fig. 1 is a schematic structural diagram of a device for recycling fine fibers and fillers in white water of pulp making and papermaking and sealing the white water.

The text labels shown in the figures are represented as: 1. a first ultrasonic wave white water treatment tower; 2. an ion displacer; 3. an ultrasonic generator; 4. a triangular shunt cap; 5. a support frame; 6. a flow distributor; 7. a support frame; 8. an overflow weir; 9. an outlet weir; 10. a supernatant connecting pipe; 11. a conical bottom; 12. a fan pulp pump of the paper machine; 13. an ultra-micro filter; 14. a paper machine cleaning pump; 15. a sampling stage; 16. climbing a ladder; 17. a thick-walled steel pipe; 18. a second ultrasonic wave white water treatment tower; 19. a flow regulating valve; 20. a differential pressure level transmitter; 21. an electric control valve; 22. a safety corridor; 23. a guardrail; 24. an ultra-clean water pipe; 25. a reinforced concrete base; 26. pre-burying a steel plate 27 and a slurry breaking pump.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1, the specific structure of the present invention is: a pulping and papermaking white water fine fiber and filler recycling and white water closed use device comprises a first ultrasonic white water treatment tower 1, wherein a second ultrasonic white water treatment tower 18 is arranged on the right side of the first ultrasonic white water treatment tower 1, and the second ultrasonic white water treatment tower 18 is connected with the first ultrasonic white water treatment tower 1 through a supernatant connecting pipe 10;

an ion displacer 2 is arranged at the upper left side of the first ultrasonic wave white water treatment tower 1, an ultrasonic generator 3 is arranged in a connecting pipeline between the first ultrasonic wave white water treatment tower 1 and the ion displacer 2, a flow distributor 6 for white water to enter the treatment tower is arranged in each of the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18, the flow distributor 6 is supported by a support frame 7, a triangular cap type diversion cap 4 is arranged in the flow distributor 6, the diversion cap 4 is supported by a support frame 5, the white water can be uniformly distributed in the flow distributor 6, the water flow speed is reduced, a flow regulating valve 19 is arranged at the conical bottom 11 of the first ultrasonic wave white water treatment tower 1 and is connected with a paper machine pulp pump 12, a pulp breaking pump 27 is arranged at the conical bottom 11 of the second ultrasonic wave white water treatment tower 18, a ladder 16 is arranged on the outer wall at the left side of the first ultrasonic wave white water treatment tower 1, the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18 are supported by six thick-wall steel pipes 17, the pipe diameters of the thick-wall steel pipes 17 are determined by the volume of the treatment tower, the thick-wall steel pipes 17 are fixed on a steel reinforced concrete base 25 which is designed to bear and be hardened, six steel plates 26 are pre-buried on the steel reinforced concrete base 25, and after the tower crane piles and the core are subjected to white water ultrasonic treatment, the six support pipes 17 are welded on the pre-buried steel plates 26.

Preferably, the sampling platform 15 is arranged on the top of the first ultrasonic whitewater treatment tower 1 and the second ultrasonic whitewater treatment tower 18, the first ultrasonic whitewater treatment tower 1 and the second ultrasonic whitewater treatment tower 18 are connected by a safety corridor 22, and the safety corridor 22 and the sampling platform 15 are both provided with a guardrail 23.

Specifically, the top of the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18 are provided with the sampling platform 15, so that the operation condition of the sampling detection system is convenient, the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18 are connected by the safety corridor 22, and the safety corridor 22 and the sampling platform 15 are both provided with the guardrails 23, so that the operation safety of workers is ensured.

Preferably, a plurality of ultrasonic generators 3 are arranged at specific positions on the inner periphery of the first ultrasonic whitewater treatment tower 1 and the second ultrasonic whitewater treatment tower 18.

Specifically, a plurality of ultrasonic generators 3 are arranged at specific positions on the whole body inside the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18, microorganisms are killed through the cavitation action of ultrasonic waves, and the problems of acid and odor of white water are solved.

Preferably, an ultra clean water pipe 24 is arranged at the upper right part of the second ultrasonic white water treatment tower 18, and the clean water pipe 24 is connected with an electric control valve 21.

Specifically, the upper right of the second ultrasonic white water treatment tower 18 is provided with a super clear water pipe 24, the clear water pipe 24 is connected with an electric control valve 21, the conical bottom 11 of the second ultrasonic white water treatment tower 18 is provided with a differential pressure liquid level transmitter 20, the differential pressure liquid level transmitter 20 is linked with the electric control valve 21, automatic water replenishing is realized, and the stability of the liquid level in the second ultrasonic white water treatment tower 18 is ensured.

Preferably, the second ultrasonic white water treatment tower 18 is provided with an ultra-fine filter 13 at the middle upper part, and the ultra-fine filter 13 is connected with a paper machine cleaning pump 14.

Specifically, the middle upper part of the second ultrasonic wave white water treatment tower 18 is provided with the ultra-micro filter 13, and the ultra-micro filter 13 is connected with the delivery pump 14 and delivered to a paper machine washing forming net and a felt, so that the use efficiency of water resources is greatly improved.

Preferably, the conical bottom 11 of the second ultrasonic white water treatment tower 18 is provided with a differential pressure liquid level transmitter 20, and the differential pressure liquid level transmitter 20 is interlocked with an electric regulating valve 21.

Preferably, the volumes of the first ultrasonic white water treatment tower 1 and the second ultrasonic white water treatment tower 18 are determined by the white water amount of the paper machine system, and the volume of the ultrasonic white water treatment tower generally satisfies four times of the white water amount, namely, the retention time of the white water in the ultrasonic white water treatment tower is four hours.

Specifically, the volumes of the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18 are determined by the white water amount of a paper machine system, and the volume of the ultrasonic wave white water treatment tower generally meets four times of the white water amount, namely, the white water stays in the ultrasonic wave treatment tower for four hours, so that the sufficient settling separation of fine fibers and fillers is ensured.

When the device is used specifically, firstly, a simple understanding of the recycling and white water closed use device of the pulp making and papermaking white water fine fibers and the filler is needed, the right side of the first ultrasonic white water treatment tower 1 is provided with a second ultrasonic white water treatment tower 18, the second ultrasonic white water treatment tower 18 is connected with the first ultrasonic white water treatment tower 1 through a supernatant connecting pipe 10, the upper left side of the first ultrasonic white water treatment tower 1 is provided with an ion displacer 2, anion impurity garbage in a system can be greatly removed, and an ultrasonic generator 3 is arranged in a connecting pipeline of the first ultrasonic white water treatment tower 1 and the ion displacer 2, microorganisms are killed through the cavitation of ultrasonic waves, and the problem that the white water is sour and smelly is solved; the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18 are both provided with a flow distributor 6 for white water to enter the treatment towers, the flow distributor 6 is supported by a support frame 7, a triangular shunting cap 4 is installed in the flow distributor 6, and the triangular shunting cap 4 is supported by a support frame 5, so that the white water can be uniformly distributed in the flow distributor 6, and the water flow speed is reduced; the cone bottoms 11 of the first ultrasonic white water treatment tower 1 and the second ultrasonic white water treatment tower 18 are provided with flow regulating valves 19, are connected with a paper machine pulp washing pump 12, are sent into a paper machine pulp washing system, and are used for recovering fiber fillers; the outer wall of the left side of the first ultrasonic wave white water treatment tower 1 is provided with a ladder 16, the first ultrasonic wave white water treatment tower 1 and the second ultrasonic wave white water treatment tower 18 are supported by six thick-wall steel pipes 17, the pipe diameters of the thick-wall steel pipes 17 are determined by the volume of the treatment tower, the thick-wall steel pipes 17 are fixed on a steel reinforced concrete base 25 which is designed to bear and be hardened, six steel plates 26 are pre-embedded on the steel reinforced concrete base 25, and after the tower crane piles and the core are treated by the white water ultrasonic wave, six support pipes 17 are welded on the pre-embedded steel plates 26, namely the working flow of the device.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.