阅读说明：本技术 一种造纸干燥箱 (Papermaking drying cabinet ) 是由 吴小燕 岳跃振 贵仁兵 韩伟伟 单升来 任声春 徐厚平 于 2021-09-27 设计创作，主要内容包括：本发明公开了一种造纸干燥箱,包括干燥箱,其特征在于,干燥箱内部设置有左右贯通的干燥腔,干燥箱内顶部设置有排气腔,排气腔底部设置有多个出气孔,排气腔的内部设置有供热管,干燥箱顶部设置有出气罩,出气罩底端与排气腔内部相通,出气罩顶端内部卡接有过滤组件,干燥腔内部还设置有温度传感器,干燥腔内部于排气腔的右侧设置的回气腔,回气腔顶端与干燥箱顶部右侧设置的第二抽气机抽气端相连通,第二抽气机排气端连接有回气管,回气管另一端对接于出气罩顶端设置的连通管的内部。本发明提供的一种造纸干燥箱一方面可对纸张进行干燥操作,同时内部的温度传感器配合回气腔的设计能够大幅减少能量的消耗,更加节能。(The invention discloses a papermaking drying box which comprises a drying box and is characterized in that a drying cavity which is communicated with the left and the right is arranged in the drying box, an exhaust cavity is arranged at the top in the drying box, a plurality of air outlet holes are formed in the bottom of the exhaust cavity, a heating pipe is arranged in the exhaust cavity, an air outlet cover is arranged at the top of the drying box, the bottom end of the air outlet cover is communicated with the interior of the exhaust cavity, a filter assembly is clamped in the top end of the air outlet cover, a temperature sensor is also arranged in the drying cavity, an air return cavity is arranged on the right side of the exhaust cavity in the drying cavity, the top end of the air return cavity is communicated with the air suction end of a second air pump arranged on the right side of the top of the drying box, the exhaust end of the second air pump is connected with an air return pipe, and the other end of the air return pipe is connected to the interior of a communicating pipe arranged at the top end of the air outlet cover. On one hand, the papermaking drying box provided by the invention can dry paper, and meanwhile, the design that an internal temperature sensor is matched with a return air cavity can greatly reduce the energy consumption and save more energy.)

1. A papermaking drying box comprises a drying box (1) and is characterized in that a drying cavity (2) which is communicated with the left and the right is arranged in the drying box (1), an exhaust cavity (7) is arranged at the top in the drying box (1), a plurality of air outlet holes (8) are formed in the bottom of the exhaust cavity (7), a heat supply pipe (9) is arranged in the exhaust cavity (7), an air outlet cover (10) is arranged at the top of the drying box (1), the bottom end of the air outlet cover (10) is communicated with the inside of the exhaust cavity (7), a filter assembly (11) is clamped in the top end of the air outlet cover (10), a temperature sensor (15) is further arranged in the drying cavity (2), an air return cavity (16) is arranged in the drying cavity (1) on the right side of the exhaust cavity (16), and the top end of the air return cavity (16) is communicated with a second air extractor (18) arranged on the right side of the top of the drying box (1), the exhaust end of the second air pump (18) is connected with an air return pipe (17), and the other end of the air return pipe (17) is in butt joint with the inside of a communicating pipe (12) arranged at the top end of the air outlet cover (10).

2. The papermaking drying box according to claim 1, characterized in that an air blower (13) is arranged at the top end of the drying box (1) on the right side of the air outlet cover (10), an air outlet pipe (14) is communicated with an air outlet end of the air blower (13), and the other end of the air outlet pipe (14) is communicated with the inside of the communicating pipe (12).

3. A papermaking drying box according to claim 1, characterised in that the filter assembly (11) comprises a first filter screen (19), a second filter screen (20) and a third filter screen (21).

4. A papermaking drying box according to claim 3, characterized in that said first filter screen (19), said second filter screen (20) and said third filter screen (21) are arranged from top to bottom in sequence, and the filtering capacity of said first filter screen (19), said second filter screen (20) and said third filter screen (21) increases from top to bottom in sequence.

5. Papermaking drying box according to claim 1, characterised in that the return air chamber (16) is provided with a return air screen (23) at its bottom.

6. The papermaking drying box according to claim 1, characterized in that a negative pressure dust-blocking port (3) is arranged on the left side of the drying box (1), a negative pressure cavity (4) is communicated with the top end of the negative pressure dust-blocking port (3), an air duct (5) is communicated with the top end of the negative pressure cavity (4), and the other end of the air duct (5) is in butt joint with the air exhaust end of a first air exhauster (6) arranged on the left side of the top of the drying box (1).

7. A papermaking drying box according to claim 1, characterised in that the filter assembly (11) is provided with a pull handle (22) on the left side.

Technical Field

The invention relates to the field of papermaking equipment, in particular to a papermaking drying box.

Background

The paper making machine is a general name of a complete set of equipment which enables paper pulp to form paper web in a linkage mode, and comprises a head box, a net part, a pressing part, a drying part, a calender, a paper winder, a transmission part and other main machines and auxiliary systems such as steam, water, vacuum, lubrication, heat recovery and the like, and the machine is used for making paper by carrying out processes such as filter screen dehydration forming, mechanical extrusion dehydration, drying and the like on a paper pulp water suspension body meeting the paper making requirements. The paper making machine includes 3 main parts for finishing the above technological processes, including finishing, winding and driving device, and auxiliary systems for pulp supply, pulp and white water circulation, vacuum, ventilation and exhaust, broke treatment and lubrication, automatic control, etc. The specifications of a paper machine are often expressed in the width of the finished paper (abbreviated as draw width) to be made, the width of the copper wire and the preferred operating speed. The width of modern large paper machine can reach 11m, the working speed can reach more than 1000m/min, the daily paper yield can reach hundreds of tons, the weight of the whole machine can reach more than thousand tons, and the length can reach more than hundred meters. In general developing countries and production of some special papers, small paper machines are used mostly, the width of the paper machine is 1-3 m, and the working speed is dozens of meters per minute to 200 meters.

The drying box in the traditional paper machine does not control the temperature and the drying operation lasts, and exhausted hot air cannot be recycled, so that part of available energy is wasted.

Based on the above, the invention designs a papermaking drying box to solve the problems.

Disclosure of Invention

The invention aims to provide a papermaking drying box to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a papermaking drying cabinet, includes the drying cabinet, its characterized in that, the inside drying chamber that link up about being provided with of drying cabinet, the top is provided with the chamber of exhausting in the drying cabinet, the chamber bottom of exhausting is provided with a plurality of ventholes, the inside in chamber of exhausting is provided with the heating pipe, the drying cabinet top is provided with the air outlet cover, air outlet cover bottom with the intracavity portion of exhausting communicates with each other, the inside joint in air outlet cover top has filtering component, the inside temperature sensor that still is provided with of drying chamber, the drying chamber inside in the air return chamber that the right side in chamber of exhausting set up, air return chamber top with the second air extractor air exhaust end that drying cabinet top right side set up is linked together, second air extractor exhaust end is connected with the muffler, the other end of muffler dock in the inside of the communicating pipe that the air outlet cover top set up.

As a further scheme of the invention, the air blower is arranged at the right side of the air outlet cover at the top end of the drying box, an air outlet end of the air blower is communicated with an air outlet pipe, and the other end of the air outlet pipe is communicated with the inside of the communicating pipe.

As a further aspect of the present invention, the filter assembly includes a first filter, a second filter, and a third filter.

As a further scheme of the invention, the first filter screen, the second filter screen and the third filter screen are sequentially arranged from top to bottom, and the filtering capacities of the first filter screen, the second filter screen and the third filter screen are sequentially increased from top to bottom.

As a further scheme of the invention, the bottom of the air return cavity is provided with an air return net plate.

As a further scheme of the invention, a negative pressure dust-blocking port is arranged on the left side of the drying box, the top end of the negative pressure dust-blocking port is communicated with a negative pressure cavity, the top end of the negative pressure cavity is communicated with an air guide pipe, and the other end of the air guide pipe is in butt joint with the air exhaust end of a first air exhauster arranged on the left side of the top of the drying box.

As a further scheme of the invention, the left side of the filter assembly is provided with a pull handle.

Compared with the prior art, the invention has the beneficial effects that:

(1) when the drying device works, the air blower continuously sucks external air into the air outlet pipe, dust is removed through the filtering assembly, and finally the air is discharged into the air exhaust cavity through the air outlet cover, the air is heated by the heat supply pipe and discharged into the air outlet holes, so that paper in the drying cavity is dried, the temperature sensor continuously measures the temperature in the drying cavity and transmits the internal temperature in real time, the temperature of the heat supply pipe is controlled, the air return cavity continuously pumps the air in the drying cavity back into the communicating pipe during the period, a circulating air temperature control system is formed, and the energy consumption of natural gas heat supply can be effectively saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic view of the internal structure of a papermaking drying box according to the present invention;

fig. 2 is a schematic view of the structure of a filter assembly of a papermaking drying box according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a drying oven; 2. a drying chamber; 3. a negative pressure dust blocking port; 4. a negative pressure chamber; 5. an air duct; 6. a first air extractor; 7. an exhaust chamber; 8. an air outlet; 9. a heat supply pipe; 10. an air outlet cover; 11. a filter assembly; 12. a communicating pipe; 13. a blower; 14. an air outlet pipe; 15. a temperature sensor; 16. a gas return cavity; 17. an air return pipe; 18. a second air extractor; 19. a first filter screen; 20. a second filter screen; 21. a third filter screen; 22. pulling a handle; 23. a gas return net plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the invention provides a drying oven for papermaking, which comprises a drying oven 1, and is characterized in that a drying cavity 2 which is through from left to right is arranged inside the drying oven 1, an exhaust cavity 7 is arranged at the top inside the drying oven 1, a plurality of air outlet holes 8 are arranged at the bottom of the exhaust cavity 7, a heat supply pipe 9 is arranged inside the exhaust cavity 7, an air outlet cover 10 is arranged at the top inside the drying oven 1, the bottom end of the air outlet cover 10 is communicated with the inside of the exhaust cavity 7, a filter assembly 11 is clamped inside the top end of the air outlet cover 10, a temperature sensor 15 is further arranged inside the drying cavity 2, an air return cavity 16 arranged at the right side of the exhaust cavity 16 inside the drying oven 1, the top end of the air return cavity 16 is communicated with the air extraction end of a second air extractor 18 arranged at the right side of the top of the drying oven 1, the exhaust end of the second air extractor 18 is connected with an air return pipe 17, the other end of the muffler 17 is connected to the inside of the communicating tube 12 arranged at the top end of the air outlet cover 10.

Through the scheme of the invention, the air blower 13 is arranged at the right side of the air outlet cover 10 at the top end of the drying box 1, the air outlet end of the air blower 13 is communicated with the air outlet pipe 14, and the other end of the air outlet pipe 14 is communicated with the inside of the communicating pipe 12.

With the above aspect of the present invention, the filter assembly 11 includes a first filter 19, a second filter 20 and a third filter 21.

Through the scheme of the invention, the first filter screen 19, the second filter screen 20 and the third filter screen 21 are sequentially arranged from top to bottom, and the filtering capacities of the first filter screen 19, the second filter screen 20 and the third filter screen 21 are sequentially increased from top to bottom.

Through the scheme of the invention, the air return net plate 23 is arranged at the bottom of the air return cavity 16.

According to the scheme of the invention, the left side of the drying box 1 is provided with the negative pressure dust-blocking port 3, the top end of the negative pressure dust-blocking port 3 is communicated with the negative pressure cavity 4, the top end of the negative pressure cavity 4 is communicated with the air guide pipe 5, and the other end of the air guide pipe 5 is butted with the air exhaust end of the first air exhauster 6 arranged on the left side of the top of the drying box 1.

With the above arrangement of the present invention, the left side of the filter assembly 11 is provided with the pull handle 22.

In practical application, during operation air-blower 13 lasts the inside with outside air suction outlet pipe 14 and removes dust through filter assembly 11 and handles the inside of discharging into exhaust chamber 10 through going out gas hood 10 at last, the heating of advancing heat supply pipe 9 is in the inside discharge of a plurality of ventholes 8 and then carry out the stoving operation to the paper of drying chamber 2 inside, temperature sensor 15 lasts the inside temperature in measurement drying chamber 2 during, and pass through the inside temperature in real time, control heat supply pipe 9's temperature, the inside of communicating pipe 12 is constantly pumped back to the inside with drying chamber 2 to gas chamber 16 during, form circulated air temperature control system, can effectively practice thrift the energy consumption of natural gas heat supply.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.