阅读说明：本技术 一种多级闪急干燥纸纤维的设备 (Multistage flash drying paper fiber's equipment ) 是由 陈龙 于 2021-06-20 设计创作，主要内容包括：一种多级闪急干燥纸纤维的设备,利用专业起绒机把各种造纸纤维加工成绒状,再用热空气对起绒后的纤维进行干燥,把20％至50％干度的原料干燥为平均达90％干度的常温纤维,能便于仓储及打包运输。设备包括干燥主机,干燥主机由热交换器,专业起绒机,供热管路,控制阀门,调节风门,干燥风机,平衡管路及风机,纤维打包机等组成。主要的功效是将湿冷空气,通过传热介质,包括蒸汽,导热油,锅炉尾气等升温,在控制部件的执行下达到生产工艺要求的温度。本发明提供了一种在废纸制浆业能更快速便捷、更节能环保的废纸浆板生产设备,即能替代传统的浆板机,优点在于占地平方少、设备简单、能耗低、自动化程度高,节约投资成本和使用成本。(A multi-stage flash drying equipment for paper fibres features that a special raising machine is used to make various paper fibres into pile, the raised fibres are dried by hot air, and the raw material with 20-50% dryness is dried to ordinary-temp fibres with 90% dryness. The equipment comprises a drying main machine, wherein the drying main machine comprises a heat exchanger, a professional raising machine, a heat supply pipeline, a control valve, an adjusting air door, a drying fan, a balance pipeline, a fan, a fiber packing machine and the like. The main effect is to heat up the wet and cold air through heat transfer media including steam, heat transfer oil, boiler tail gas and the like, and the temperature required by the production process is reached under the execution of the control part. The invention provides the waste paper pulp board production equipment which can be used for more quickly, conveniently, more energy-saving and environment-friendly in the waste paper pulping industry, can replace the traditional pulp board machine, and has the advantages of small floor area, simple equipment, low energy consumption, high automation degree, investment cost saving and use cost saving.)

1. A multistage flash drying device for paper fibers comprises a pulp pond (25) and a wet pulp machine (24), and is characterized in that one end of the pulp pond (25) is connected with one end of the wet pulp machine (24) through a pulp pipe (30), the other end of the wet pulp machine (24) is connected with one end of a wet pulp pipe (31), the other end of the wet pulp pipe (31) is connected with one end of a feeding screw (1), the other end of the feeding screw (1) is connected with one end of a professional raising machine (2), the lower end of the feeding screw (1) and the lower end of the professional raising machine (2) are connected with one end of an upper steam pipe (26), the other end of the professional raising machine (2) is connected with a pulp spraying pipe (3), the pulp spraying pipe (3) is connected with a drying pipeline (9), the left end of the drying pipeline (9) is connected with one end of a primary adjusting air door (8), the other end of the primary adjusting air door (8) is connected with the left end of a primary drying fan (7), and the right end of the primary drying fan (7) is connected with one end of a right steam pipe (29), the right end of a primary drying pipeline (9) is connected with a primary cyclone separator (10), the top end of the primary cyclone separator (10) is connected with a primary escape steam pipe (11), the bottom end of the primary cyclone separator (10) is connected with the top end of a primary drying pipeline (12), the bottom end of the primary drying pipeline (12) is connected with one end of a secondary damper (13), the other end of the secondary damper (13) is connected with the top end of a secondary drying fan (14), the right end of the secondary drying fan (14) is connected with one end of a secondary drying pipeline (15), the other end of the secondary drying pipeline (15) is connected with the left end of a secondary cyclone separator (16), the top end of the secondary cyclone separator (16) is connected with a secondary escape steam pipe (17), the bottom end of the secondary cyclone separator (16) is connected with one end of a tertiary damper (18), the other end of the tertiary damper (18) is connected with the top, the left end of a balance pipeline (19) is connected with the right end of a discharge spiral (21), the left end of the discharge spiral (21) is connected with a fiber packing machine (22), massive finished fibers (23) are placed at the outlet of the fiber packing machine (22), the other end of an upper steam pipe (26) is connected with the top end of a four-way control valve (5), the right end of the four-way control valve (5) is connected with the other end of a right steam pipe (29), the bottom end of the four-way control valve (5) is connected with one end of a lower steam pipe (27), the other end of the lower steam pipe (27) is connected with one end of a control valve (6), the other end of the control valve (6) is connected with the left end of a secondary drying fan (14) through a pipeline, the left end of the four-way control valve (5) is connected with one end of a left steam pipe (28), and the other end of the left steam pipe (28) is connected with a heat exchanger (4).

2. A multistage flash drying apparatus for paper fibers according to claim 1, characterized in that the number of primary cyclones (10) is not less than 2, connected in parallel.

3. A device for multistage flash drying of paper fibers according to claim 1, characterized in that the drying line (9), the primary drying line (12) and the secondary drying line (15) are made of stainless steel material, the diameter of the lines should match the line of the blower, the total length of the lines should be less than 130 meters, and the drying time of the fibers in the lines should be less than 4 seconds.

4. A device for multistage flash drying of paper fibres as claimed in claim 1, characterised in that the professional fleece machine (2) is arranged to process the various paper fibres into a fleece shape and to dry the fleece fibres with hot air, whereby the fibre stock with a dryness of 20 to 50% is dried to 90% of the fibre stock.

5. A multistage flash drying apparatus for paper fibers according to claim 1, wherein the primary cyclone (10) and the secondary cyclone (16) separate the dried fibers from the wet air and are isolated from the air by a damper to effectively prevent leakage.

Technical Field

The invention relates to a waste paper pulping board device, in particular to a multistage flash drying device for paper fibers, which utilizes a professional raising machine to process various paper fibers into a raising shape, then uses hot air to dry the raised fibers, dries 20-50% of dry raw materials into normal temperature fibers with the average dryness of 90%, and can facilitate storage, packaging and transportation.

Background

The existing paper-making field is made of waste paper pulp board equipment: the drying process is driven by a drying cylinder, so that the equipment is complex, the energy consumption is high, the maintenance is difficult, and the productivity is low; the second type is a drying oven type dryer, which is complex in equipment, difficult to maintain, high in energy consumption and expensive in manufacturing cost.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a multistage flash drying device for paper fibers, which utilizes a professional raising machine to process various paper fibers into a raising shape, then uses hot air to dry the raised fibers, dries 20-50% of dry raw materials into normal-temperature fibers with the average dryness of 90%, and can be conveniently stored, packaged and transported.

The technical scheme adopted by the invention for solving the technical problems is as follows: a device for multistage flash drying of paper fibers comprises a slurry pool and a wet pulp board machine, wherein one end of the slurry pool is connected with one end of the wet pulp board machine through a slurry pipe, the other end of the wet pulp board machine is connected with one end of the wet pulp pipe, the other end of the wet pulp pipe is connected with one end of a feeding screw, the other end of the feeding screw is connected with one end of a professional raising machine, the lower end of the feeding screw and the lower end of the professional raising machine are connected with one end of an upper steam pipe, the other end of the professional raising machine is connected with a slurry spraying pipe, the slurry spraying pipe is connected with a drying pipeline, the left end of the drying pipeline is connected with one end of a primary air damper, the other end of the primary air damper is connected with the left end of a primary drying fan, the right end of the primary drying fan is connected with one end of a right steam pipe, the right end of the primary drying pipeline is connected with a primary cyclone separator, the top end of the primary cyclone separator is connected with the top end of the primary drying pipeline, the bottom end of the primary drying pipeline is connected with one end of a secondary air damper, the other end of the second-stage air damper is connected with the top end of a second-stage drying fan, the right end of the second-stage drying fan is connected with one end of a second-stage drying pipeline, the other end of the second-stage drying pipeline is connected with the left end of a second-stage cyclone separator, the top end of the second-stage cyclone separator is connected with a second-stage escape steam pipe, the bottom end of the second-stage cyclone separator is connected with one end of a third-stage air damper, the other end of the third-stage air damper is connected with the top end of a balance pipeline, the right end of the balance pipeline is connected with a natural cooling fan, the left end of the balance pipeline is connected with the right end of a discharge spiral, the left end of the discharge spiral is connected with a fiber packing machine, the outlet of the fiber packing machine is provided with blocky finished fibers, the other end of an upper steam pipe is connected with the top end of a four-way control valve, the right end of the four-way control valve is connected with the other end of a right steam pipe, the bottom end of a lower steam pipe is connected with one end of a control valve, the other end of the control valve is connected with the left end of the second-stage drying fan through a pipeline, the left end of the four-way control valve is connected with one end of a left steam pipe, and the other end of the left steam pipe is connected with a heat exchanger.

The invention has the beneficial effects that the invention provides the waste paper pulp board production equipment which can be used for more quickly, conveniently, more energy-saving and more environment-friendly in the waste paper pulping industry, and the invention can replace the original drying cylinder type pulp board machine and drying box type pulp board machine. The invention has the advantages of small square occupation, simple equipment, low energy consumption and high automation degree. The invention can replace the traditional pulp machine, and saves the investment cost and the use cost.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a block diagram of a first embodiment of the present invention.

In the figure: 1. the device comprises a feeding screw, 2 a professional raising machine, 3 a pulp spraying pipe, 4 a heat exchanger, 5 a four-way control valve, 6 a control valve 7, a primary drying fan, 8 a primary adjusting air door, 9 a drying pipeline, 10 a primary cyclone separator, 11 a primary escape steam pipe, 12 a primary drying pipeline, 13 a secondary adjusting air door, 14 a secondary drying fan, 15 a secondary drying pipeline, 16 a secondary cyclone separator, 17 a secondary escape steam pipe, 18 a tertiary adjusting air door, 19 a balance pipeline, 20 a natural cooling fan, 21 a discharging screw, 22 a fiber packing machine, 23 blocky finished fibers, 24 a wet pulp board machine, 25 a pulp tank, 26 an upper steam pipe, 27 a lower steam pipe, 28 a left steam pipe, 29 a right steam pipe, 30 a pulp pipe and 31 a wet pulp pipe.

Detailed Description

In the embodiment shown in fig. 1, there are provided: a feeding screw (1), a professional raising machine (2), a guniting pipe (3), a heat exchanger (4), a four-way control valve (5), a control valve (6), a primary drying fan (7), a primary air damper (8), a drying pipeline (9), a primary cyclone separator (10), a primary escape steam pipe (11), a primary drying pipeline (12), a secondary air damper (13), a secondary drying fan (14), a secondary drying pipeline (15), a secondary cyclone separator (16), a secondary escape steam pipe (17), a tertiary air damper (18), a balance pipeline (19), a natural cooling fan (20), a discharging screw (21), a fiber packing machine (22), a blocky finished fiber (23), a wet pulp board machine (24), a pulp tank (25), an upper steam pipe (26), a lower steam pipe (27), a left steam pipe (28) and a right steam pipe (29), a slurry pipe (30) and a wet slurry pipe (31).

The invention relates to a multistage flash paper fiber drying device, which comprises a pulp tank (25) and a wet pulp machine (24), wherein one end of the pulp tank (25) is connected with one end of the wet pulp machine (24) through a pulp pipe (30), the other end of the wet pulp machine (24) is connected with one end of a wet pulp pipe (31), the other end of the wet pulp pipe (31) is connected with one end of a feeding screw (1), the other end of the feeding screw (1) is connected with one end of a professional raising machine (2), the lower end of the feeding screw (1) and the lower end of the professional raising machine (2) are connected with one end of an upper steam pipe (26), the other end of the professional raising machine (2) is connected with a pulp spraying pipe (3), the pulp spraying pipe (3) is connected with a drying pipeline (9), the left end of the drying pipeline (9) is connected with one end of a primary adjusting air door (8), the other end of the primary adjusting air door (8) is connected with the left end of a primary drying fan (7), and the right end of the primary drying fan (7) is connected with one end of a right steam pipe (29), the right end of a primary drying pipeline (9) is connected with a primary cyclone separator (10), the top end of the primary cyclone separator (10) is connected with a primary escape steam pipe (11), the bottom end of the primary cyclone separator (10) is connected with the top end of a primary drying pipeline (12), the bottom end of the primary drying pipeline (12) is connected with one end of a secondary damper (13), the other end of the secondary damper (13) is connected with the top end of a secondary drying fan (14), the right end of the secondary drying fan (14) is connected with one end of a secondary drying pipeline (15), the other end of the secondary drying pipeline (15) is connected with the left end of a secondary cyclone separator (16), the top end of the secondary cyclone separator (16) is connected with a secondary escape steam pipe (17), the bottom end of the secondary cyclone separator (16) is connected with one end of a tertiary damper (18), the other end of the tertiary damper (18) is connected with the top end of a balance pipeline (19), and the right end of the balance pipeline (19) is connected with a natural cooling fan (20), the left end of a balance pipeline (19) is connected with the right end of a discharge spiral (21), the left end of the discharge spiral (21) is connected with a fiber packing machine (22), massive finished fibers (23) are placed at the outlet of the fiber packing machine (22), the other end of an upper steam pipe (26) is connected with the top end of a four-way control valve (5), the right end of the four-way control valve (5) is connected with the other end of a right steam pipe (29), the bottom end of the four-way control valve (5) is connected with one end of a lower steam pipe (27), the other end of the lower steam pipe (27) is connected with one end of a control valve (6), the other end of the control valve (6) is connected with the left end of a secondary drying fan (14) through a pipeline, the left end of the four-way control valve (5) is connected with one end of a left steam pipe (28), and the other end of the left steam pipe (28) is connected with a heat exchanger (4).

The multistage flash drying equipment for the paper fibers is implemented, the number of the first-stage cyclone separators (10) is not less than 2, and the first-stage cyclone separators are connected in parallel. The drying pipeline (9), the primary drying pipeline (12) and the secondary drying pipeline (15) are made of stainless steel materials, the diameter of the pipeline is matched with that of a fan, the total length of the pipeline is smaller than 130 m, and the drying time of fibers in the pipeline is smaller than 4 seconds. The professional raising machine (2) processes various papermaking fibers into a raising shape, then uses hot air to dry the raised fibers, and dries the fiber raw materials with the dryness of 20-50% into 90% fiber raw materials. The primary cyclone separator (10) and the secondary cyclone separator (16) separate dried fiber and wet air, and the air is isolated by a regulating air door, so that leakage can be effectively prevented.

The invention relates to a multistage flash drying device for paper fibers, which is implemented by processing various paper fibers into a velvet shape by using a professional raising machine, drying the raised fibers by using hot air, drying raw materials with the dryness of 20-50% into normal-temperature fibers with the average dryness of 90%, and facilitating storage, packaging and transportation.

The multistage flash drying equipment for paper fibers comprises a drying main machine: the drying main machine consists of a heat exchanger, a professional raising machine, a heat supply pipeline, a control valve, a damper, a drying fan, a balance pipeline, a fan, a fiber packing machine and the like. The main effect is to heat up the wet and cold air through heat transfer media including steam, heat transfer oil, boiler tail gas and the like, and the temperature required by the production process is reached under the execution of the control part. The dryer is the core part of the drying system, and the number of the heat exchangers, the air volume of the fan and the motor are matched, so that the dryer is directly and closely related to the production capacity.

The multistage equipment for flash drying of the paper fibers adopts the drying pipeline, the drying pipeline is made of stainless steel materials, and the diameter of the pipeline is matched with the air volume of a fan. The length of the pipeline is less than 130 meters, the fiber can be dried in less than 4 seconds, flash drying is achieved, drying time is short, and productivity is high.

The multistage flash drying equipment for the paper fibers adopts the cyclone separator which is arranged at the tail end of the drying pipeline, the first-stage and second-stage cyclone separators are continuously arranged to separate the dried fibers from wet air, the separation rotary valve is arranged in the adjusting air door, the separation rotary valve in the adjusting air door isolates the air, and leakage can be effectively prevented.

The multistage equipment for flash drying of the paper fibers adopts the balance pipeline and the fan, and the balance pipeline and the fan have the effects that after the fibers are dried, the temperature of the fibers is 50-60 ℃, the fibers are not suitable for direct packaging and storage, and the fibers need to be cooled until the temperature of the fibers is balanced to be below 30 ℃ so as to be packaged and stored. The balance pipeline and the fan play the role.

The multistage flash drying equipment for the paper fibers has the working principle that:

1. various papermaking fibers are processed into fluff by a professional raising machine.

2. The fluff-like fiber is blown into an air pipe by utilizing pressure hot air, and then is pulled by a gravity fan in front. After entering the air pipe, the flocculent fibers are fully stirred with hot air to be suspended in the air pipe, so that the gravity fan is convenient to pull and convey materials.

3. When the lint-like fibres are fully agitated with hot air, the material enters the cyclone separator. The cyclone separator utilizes the principle that hot air is lighter than materials, so that water vapor is evaporated upwards, the materials fall down, and the purpose of drying the materials is achieved. The specific operation can be carried out according to the characteristics of different materials, the temperature can be adjusted, and in order to avoid secondary damage of the regenerated fibers, a plurality of continuous cyclone separators or a plurality of cyclone separators can be arranged.

4. And after the drying is finished, the temperature of the fiber is 50-60 ℃, which is not suitable for direct packaging and storage, cooling is needed, the temperature is balanced to be below 30 ℃ for packaging and storage, and a balancing pipeline and a fan play a role.

When the multistage flash drying equipment for the paper fibers is implemented, the fibers are cooled to normal temperature and then packaged into massive finished fibers through a fiber packaging machine, so that the multistage flash drying equipment is convenient to store and transport.

The multistage flash drying equipment for the paper fibers adopts the heat preservation device, and the heat preservation device is used for effectively saving energy and integrally preserving heat of the whole equipment system. The heat-insulating material is high-quality mineral wool with the thickness of 100mm, and the exterior of the heat-insulating material is wrapped by a color steel plate, so that the waterproof and heat-insulating effects can be achieved.

The multistage equipment for flash drying the paper fibers adopts the nonstandard support which is a nonstandard carbon steel section bar, is manufactured and installed on site, and mainly plays a role in bearing and supporting. The outer surface of the non-standard bracket is painted to play a role in rust prevention and protection.

In the multistage flash drying equipment for paper fibers, a feeding part adopts spiral feeding or air conveying feeding.

According to the multistage flash drying equipment for the paper fibers, the tail gas treatment device is adopted, and due to the fact that the standard of the environmental protection requirement is continuously improved, the tail gas treatment device adopts a post-treatment mode for indexes of the tail gas PN2.5 under the condition that the cyclone separator cannot meet the requirement, and the purpose is to achieve the tail gas PN2.5 emission standard.

The invention relates to a multistage flash drying device for paper fibers. The PLC can monitor the temperature of different positions of the system through the sensor, and automatically control the temperature to enable the temperature to reach set parameters so as to meet the requirements of the production process.

The multistage flash drying equipment for paper fibers comprises a drying main machine, wherein the drying main machine comprises a heat exchanger, a professional raising machine, a heat supply pipeline, a control valve, an adjusting air door, a drying fan, a balance pipeline, a fan, a fiber packing machine and the like. The main effect is to heat up the wet and cold air through heat transfer media including steam, heat transfer oil, boiler tail gas and the like, and the temperature required by the production process is reached under the execution of the control part. The air quantity of the fan is matched with the power of the motor, the drying main machine is a core component of the drying system, and the selection of the power of the heat exchanger and the selection of the power of the fan are determined according to the requirement of production capacity.

The invention discloses equipment for multistage flash drying of paper fibers, and provides waste paper pulp board production equipment which can be used for more quickly, conveniently, more energy-saving and more environment-friendly in the waste paper pulping industry. The invention has the advantages of small square occupation, simple equipment, low energy consumption and high automation degree. The invention can replace the traditional pulp machine, and saves the investment cost and the use cost.

The invention relates to a multistage flash drying device for paper fibers, and provides a multistage flash drying device for paper fibers, which is used for processing various paper fibers into a velvet shape by using a professional raising machine, drying the raised fibers by using hot air, drying 20-50% of dry raw materials into normal-temperature fibers with the average dryness of 90%, and facilitating storage, packaging and transportation.

The invention has good effect.