Paper pulp processing reaction kettle

Abstract

The utility model relates to the technical field of sewage treatment equipment, in particular to a paper pulp processing reaction kettle which comprises a kettle body, a top cover is arranged at the upper end of the kettle body, a stirring device is arranged on the top cover, and the stirring device comprises a driving motor, a first rotating shaft capable of penetrating into the kettle body, a transmission gear and at least one driven stirring mechanism. The transmission gear is fixedly arranged on the first rotating shaft, the driven stirring mechanism comprises a driven gear and a second rotating shaft rotationally arranged on the top cover, the driven gear is fixed on the second rotating shaft and is in gear running fit with the transmission gear, and the lower end of the second rotating shaft extends into the kettle body; spiral blades are arranged on the parts, positioned in the kettle body, of the first rotating shaft and the second rotating shaft. The driven stirring mechanism is driven by the transmission gear, compared with an existing reaction kettle provided with a single rotating shaft and stirring blades, the stirring effect of the first rotating shaft combined with the driven stirring mechanism is better, meanwhile, the spiral blades can play a continuous stirring role on the liquid level, paper pulp located on the liquid level is rolled into the middle of the kettle body, and the stirring effect is better. Paper scraps are prevented from floating on the surface of the reaction liquid, so that all paper pulp fully reacts.

Description

Technical Field

[0001] The utility model relates to the field of paper product processing, in particular to a pulp processing reactor. Background Art

[0002] The raw pulp used for paper packaging materials is mostly obtained by secondary processing of waste paper. During the processing, the waste paper is put into the pulp processing equipment, and water is added for soaking and stirring to obtain pulp. The pulp is then passed into the reactor for further processing so that the waste paper can be recycled and processed into paper packaging bags.

[0003] The patent application number (CN201810945823.X) discloses a pulp mixing device for paper product production, including a stirring unit, the stirring unit includes a stirring kettle body, a stirring shaft is arranged inside the stirring kettle body, the upper end of the stirring shaft is connected to a stirring motor through a coupling, and a stirring blade is arranged on the shaft body of the stirring shaft, and the stirring blade is driven by the motor to rotate in the stirring kettle body, thereby stirring the liquid in the stirring kettle body, so that the shredded paper entering the kettle body can be mixed;

[0004] However, there are still some problems with the existing reactors for pulp processing: when the pulp enters the reactor from the feed port, some paper scraps are not completely soaked and have a low density, so these paper scraps will float on the liquid surface. The existing stirring kettle cannot produce large fluctuations in the liquid surface of the reaction liquid at the upper end of the reactor, resulting in difficulty for these paper scraps to enter below the liquid surface or to fully mix and react with the reaction liquid. Summary of the invention

[0005] The utility model aims to solve the problem that the existing reactor cannot produce large fluctuations in the reaction liquid at the upper end of the reactor, resulting in that paper scraps floating on the liquid surface are difficult to enter the liquid below the surface or to fully mix and react with the reaction liquid. A reactor for paper production and processing is provided, which can fully mix all paper pulps.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a pulp processing reactor, comprising a reactor body, a top cover is provided at the upper end of the reactor body, a stirring device is provided on the upper part of the top cover, the stirring device comprises a driving motor and a first rotating shaft that can penetrate into the reactor body, and the stirring device also comprises:

[0007] a transmission gear, the transmission gear being fixedly arranged on the first rotating shaft, and

[0008] At least one driven stirring mechanism, the driven stirring mechanism comprising a driven gear and a second rotating shaft rotatably arranged on the top cover, the driven gear being fixed on the second rotating shaft and rotatingly matched with the transmission gear, the lower end of the second rotating shaft extending into the kettle body;

[0009] The first rotating shaft and the second rotating shaft are both provided with spiral blades at the parts located in the kettle body. The driven stirring mechanism is driven by the transmission gear. Compared with the existing reactor equipped with a single rotating shaft and stirring blades, the stirring effect of the first rotating shaft combined with the driven stirring mechanism is better. At the same time, the spiral blades can continuously move the liquid surface, and the pulp on the liquid surface is rolled into the middle part of the kettle body to prevent the paper scraps from floating on the surface of the reaction liquid, so that all the pulp can be fully reacted.

[0010] Preferably, the height of the spiral blade is higher than the height of the liquid level in the kettle. The spiral blade can directly move the liquid level, causing the liquid level to fluctuate greatly, thereby ensuring the mixing of the pulp and the reaction liquid.

[0011] Preferably, a feed channel is provided on the kettle body, and the feed channel includes a first channel and a second channel, the first channel is horizontally arranged to communicate with the inside of the kettle body, and the second channel is vertically arranged above the middle of the first channel. A dredging mechanism is provided on the feed channel, and the dredging mechanism includes a dredging member and a telescopic drive, and the dredging member includes a first rod and a second rod, and the first rod moves back and forth along the length extension direction of the first channel under the drive of the telescopic drive, and the second rod is fixedly connected to the middle of the first rod and extends into the second channel. The second rod can move back and forth in the second channel, thereby ensuring that the second channel will not be blocked by pulp, ensuring the patency of the second channel, and pulp can quickly pass through the feed channel.

[0012] Preferably, the end of the first rod is provided with a plurality of short rods, and the short rods are located at the connection between the first channel and the kettle body. The short rods move back and forth at the connection point to avoid blockage of the first channel and ensure that the pulp has a smooth path when entering the kettle body.

[0013] Preferably, the number of the driven stirring mechanisms is four. The four driven stirring mechanisms significantly enhance the stirring effect of the liquid in the kettle, ensuring sufficient mixing of the pulp and the reaction liquid.

[0014] Preferably, a gantry is provided at the upper end of the top cover, and the drive motor is fixedly arranged on the lower side of the gantry. The gantry can not only stabilize the drive motor, but also protect the drive motor and transmission gear under the gantry, and provide auxiliary support for the top cover.

[0015] Preferably, the gantry is provided with a lifting lug, so that a lifting machine can be conveniently used to connect the lifting lug to lift the top cover and then clean the inside of the kettle body.

[0016] Preferably, the spiral blades are arranged on the upper part of the first rotating shaft and the second shaft, and stirring plates are also arranged on the lower part of the first rotating shaft and the second shaft. While ensuring that the upper part of the liquid surface is stirred by the spiral blades, the pulp and the reaction liquid can be fully mixed through the cooperation of multiple stirring plates, so that the pulp can react completely.

[0017] Preferably, the stirring plate is provided with a hole to reduce the resistance of the stirring plate during stirring and reduce the consumption of electric energy.

[0018] It can be seen from the above technical solutions that the advantages of the utility model are:

[0019] 1. The driven stirring mechanism is driven by a transmission gear. Compared with the existing reactor equipped with a single rotating shaft and stirring blades, the first rotating shaft combined with the driven stirring mechanism significantly enhances the stirring effect on the reaction liquid in the reactor body. At the same time, the spiral blades can continuously move the liquid surface, and the vortex formed by the spiral blades can draw the pulp on the liquid surface into the middle part of the reactor body to prevent paper scraps from floating on the surface of the reaction liquid, so that all the pulp can react fully and ensure sufficient mixing between the pulp and the reaction liquid; while ensuring that the upper part of the liquid surface is stirred by the spiral blades, multiple stirring plates can be added to enhance the stirring effect inside the reaction liquid, so that the pulp and the reaction liquid are fully mixed, so that the pulp can react completely.

[0020] 2. The first rod moves back and forth in the first channel to ensure the patency of the first channel, and the second rod moves back and forth in the second channel to ensure the patency of the second channel. The pulp can quickly pass through the feed channel without causing blockage. The short rod moves back and forth at the above-mentioned connection to avoid blockage of the first channel and ensure that the pulp has a smooth path to enter the kettle.

[0021] 3. The gantry can not only stabilize the drive motor, but also provide some protection for the drive motor and transmission gear under the gantry. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The structure of the specific implementation method of the utility model is shown in FIG. Figure 1 .

[0024] Figure 2 The structure of the specific implementation method of the utility model is shown in FIG. Figure 2 .

[0025] Figure 3 The structure of the specific implementation method of the utility model is shown in FIG. Figure 3 .

[0026] Figure 4 It is a schematic diagram of the cooperation between the transmission gear and the driven gear in a specific implementation manner of the utility model.

[0027] Figure 5 It is a schematic diagram of the structure of the dredging component in a specific implementation manner of the utility model.

[0028] In the figure:

[0029] 1-kettle body, 11-top cover, 111-gantry, 12-bolt, 13-lifting ear, 14-observation window, 15-discharging port, 16-support frame, 17-support column,

[0030] 2- stirring device, 21- driving motor, 22- first rotating shaft, 23- transmission gear, 24- driven stirring mechanism, 241- driven gear, 242- second rotating shaft,

[0031] 3- spiral blade, 31- stirring plate, 311- hole,

[0032] 4-feed channel, 41-first channel, 42-second channel,

[0033] 5- Liquid inlet channel,

[0034] 6-dredging mechanism, 61-telescopic drive, 611-mounting frame, 612-connecting plate, 62-dredging piece, 621-first rod, 622-second rod, 623-short rod. DETAILED DESCRIPTION

[0035] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0036] like Figure 1-5As shown, a pulp processing reactor comprises a reactor body 1, which is a cylindrical body provided with a stirring cavity, a support frame 16 is provided at the bottom of the cylinder, and four support columns 17 with anti-slip seats are provided below the support frame 16, so as to improve the stability of the reactor body 1 on the ground, the upper end of the reactor body 1 is designed to be open, and a top cover 11 is fixed to the upper end of the reactor body 1 by bolts 12 to achieve the closure of the upper end opening of the reactor body 1 to prevent the reaction liquid from splashing out of the upper end opening of the reactor body 1 during stirring, and a stirring device 2 is provided on the upper part of the top cover 11, and the stirring device 2 comprises a driving motor 21 and a first rotating shaft 22 that can be deeply and rotatably arranged in the reactor body 1, a transmission gear 23 and at least one driven stirring mechanism 24. In this embodiment, four driven stirring mechanisms 24 are adopted, such as Figure 2 As shown, a gantry 111 extending from one end of the top cover 11 to the other end is provided on the upper side of the top cover 11, a driving motor 21 is fixed on the lower side of the middle part of the gantry 111, a motor shaft of the driving motor 21 is coaxially fixedly connected with a first rotating shaft 22, the first rotating shaft 22 extends from the upper side of the top cover 11 at the upper part of the kettle body 1 to the bottom of the kettle body 1, a transmission gear 23 is located on the upper side of the top cover 11 and is fixed on the first rotating shaft 22, the transmission gear 23 rotates following the first rotating shaft 22, four driven stirring mechanisms 24 are connected with the transmission gear 23, each driven stirring mechanism 24 includes a driven gear 241 and a second rotating shaft 242, the second rotating shaft 242 rotates vertically on the top cover 11 through a bearing, the second rotating shafts 242 of the four driven stirring mechanisms 24 are distributed in a square, and the first rotating shaft 22 is located at the center of the square, the driven gear 241 is located on the upper side of the top cover 11 and is fixed on the second rotating shaft On 242, the driven gear 241 and the transmission gear 23 rotate in coordination, and the lower end of the second rotating shaft 242 extends into the kettle body 1. When the first rotating shaft 22 rotates, the second rotating shaft 242 also rotates synchronously. The parts of the first rotating shaft 22 and the second rotating shaft 242 located in the kettle body 1 are both provided with spiral blades 3. In this embodiment, the height of the spiral blades 3 is higher than the height of the reaction liquid surface. When the spiral blades 3 rotate, the water flow will follow the channel of the spiral blades 3, which not only causes the liquid surface to have large fluctuations, but also generates vortices, so that the pulp floating on the liquid surface enters the middle part of the kettle body 1 along the vortex. This part of the pulp will be impacted and infiltrated by the reaction liquid, so that its own gravity is greater than the buoyancy it receives, or it will directly enter below the reaction liquid surface along the vortex, so that all the pulp can enter below the reaction liquid, and all the pulp can be fully mixed with the reaction liquid, so that the pulp can react completely.

[0037] like Figure 3As shown, the spiral blade 3 is arranged on the upper part of the first rotating shaft 22 and the second shaft, and the lower part of the first rotating shaft 22 and the second shaft is also provided with a plurality of stirring plates 31, the stirring plate 31 is a rectangular plate, and a through hole 311 is provided on the stirring plate 31. The stirring plate 31 can produce a greater rotational drive on the reaction liquid, so that the stirring effect is better, and the through hole 311 is provided on the stirring plate 31, which can reduce the resistance of the stirring plate 31 when the rotating rod is rotated, thereby reducing the power consumption.

[0038] like Figure 2 and Figure 5 As shown, a feed channel 4 and a liquid inlet channel 5 are provided on the cylinder of the kettle body 1, and a discharge port 15 is provided at the bottom of the kettle body 1. In order to ensure that the pulp does not block the feed channel 4, a dredging mechanism 6 is provided on the feed channel 4. The feed channel 4 includes a first channel 41 and a second channel 42. The first channel 41 is fixed on the kettle body 1 at an inclination angle with an inner end lower than an outer end and is connected to the inside of the kettle body 1. The second channel 42 is vertically arranged above the middle of the first channel 41 and is connected to the first channel 41. The dredging mechanism 6 includes a telescopic drive 61 and a dredging member 62. In this embodiment, the telescopic drive 61 adopts an electric push rod. The electric push rod is arranged in parallel with the first channel 41. The fixed end of the electric push rod is fixed below the first channel 41 through the mounting frame 611. The telescopic end of the electric push rod is connected to one end of the dredging member 62 through the connecting plate 612. The dredging member 62 includes a first rod 621 and a second rod 622. In this embodiment, the first rod 621 and the second rod 622 are both straight rods. The first rod 621 slides along the first channel 41. The outer end of the first channel 41 is provided with a through hole for the first rod 621 to move back and forth. The outer end of the first rod 621 extends out of the first channel 41 and is fixedly connected to the telescopic end of the electric push rod. The inner end of the rod 621 extends into the connection between the first channel 41 and the kettle body 1, the lower end of the second rod 622 is fixedly connected to the middle part of the first rod 621, the upper end of the second rod 622 is arranged in the second channel 42, and the second rod 622 is arranged parallel to the second channel 42. When the first rod 621 moves back and forth along the length extension direction of the first rod 621, the second rod 622 moves back and forth along the radial direction of the second channel 42; and a plurality of short rods 623 are arranged at the inner end of the first rod, and the length of the short rod 623 is less than the radius length of the first channel 41. When the first rod 621 moves back and forth, the short rods 623 It will extend into the first channel 41. During the movement of the first rod 621, the second rod 622 will touch the inner wall of the second channel 42, thereby knocking down the pulp retained on the inner wall of the second channel 42, thereby avoiding blockage in the second channel 42. The first rod 621 will continuously move the pulp in the first channel 41 to avoid the pulp being retained in the first channel 41. The short rod 623 will continuously touch the pulp at the end of the first channel 41 to avoid blockage in the first channel opening, thereby ensuring that the pulp has a smooth path to enter the kettle body 1, so that the pulp can fall into the reaction liquid at a greater speed.

[0039] like Figure 2 As shown, a lifting lug 13 is provided on the gantry 111. The bolt 12 is unscrewed to disengage the top cover 11 from the limit position, and a hoist is used to connect it with the lifting lug 13, and then the top cover 11 is lifted, so that the stirring device 2 located on the top cover 11 can be separated from the kettle body 1, so that the inside of the kettle body 1 can be cleaned.

[0040] like Figure 2 As shown, a through slot is provided on the kettle body 1, and an observation window 14 is fixedly installed inside the through slot, through which the liquid level in the kettle body 1 can be observed and the feeding can be controlled conveniently. In other embodiments, a liquid level sensor can also be installed in the kettle body 1.

[0041] The working process of the utility model is as follows: when processing work is required, the discharge port 15 is closed, the reaction liquid is added into the kettle body 1 through the liquid inlet channel 5, and then the pulp is added into the kettle body 1 through the feed channel 4. The pulp will fall from the second channel 42 into the first channel 41, and then enter the kettle body 1 from the first channel 42. During the falling process, the electric telescopic rod will perform regular telescopic activities, thereby driving the first rod 621 to reciprocate in the first channel 41, the second rod 622 to reciprocate in the second channel 42, and the short rod 623 at the end of the first rod 621 to reciprocate at the connection between the first channel 41 and the kettle body 1. After the pulp enters the kettle body 1, most of the pulp is The pulp falls directly into the reaction liquid, and a small amount of pulp floats on the surface of the reaction liquid. The stirring device 2 works, and the driving motor 21 drives the first rotating shaft 22 to rotate. The transmission gear 23 on the first rotating shaft 22 drives the driven gear 241 matched therewith to rotate, thereby driving the second rotating shaft 242 to rotate. Therefore, the spiral blade 3 and the stirring plate 31 in the kettle body 1 will rotate to stir the reaction liquid. The water flow formed by the spiral blade 3 during the rotation process will guide the pulp floating on the liquid surface to the middle part of the kettle body 1, and slowly fall into the lower part of the reaction liquid, and be fully mixed and reacted with the reaction liquid under the stirring action of the stirring plate 31.

[0042] It can be seen from the above embodiments that the beneficial effect of the utility model is that the first rotating pump combined with the driven stirring mechanism 24 significantly enhances the stirring effect on the reaction liquid in the kettle body 1, and at the same time the spiral blades 3 can continuously fluctuate the liquid surface, and the vortex formed by the spiral blades 3 can draw the pulp on the liquid surface into the middle part of the kettle body 1, avoiding paper scraps floating on the surface of the reaction liquid, so that all the pulp can react fully and ensure sufficient mixing between the pulp and the reaction liquid; while ensuring that the upper part of the liquid surface is stirred by the spiral blades 3, a plurality of stirring plates 31 can be added to enhance the stirring effect inside the reaction liquid, so that the pulp and the reaction liquid are fully mixed, so that the pulp can react completely.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pulp processing reactor, comprising a reactor body (1), wherein a top cover (11) is disposed at the upper end of the reactor body (1), a stirring device (2) is disposed on the top cover (11), and the stirring device (2) comprises a driving motor (21) and a first rotating shaft (22) capable of extending into the reactor body (1), wherein: The stirring device (2) further comprises: a transmission gear (23), wherein the transmission gear (23) is fixedly mounted on the first rotating shaft (22); and at least one driven stirring mechanism (24), the driven stirring mechanism (24) comprising a driven gear (241) and a second rotating shaft (242) rotatably arranged on the top cover (11), the driven gear (241) being fixed on the second rotating shaft (242) and being rotatably matched with the transmission gear (23), the lower end of the second rotating shaft (242) extending into the kettle body (1); The parts of the first rotating shaft (22) and the second rotating shaft (242) located inside the kettle body (1) are both provided with spiral blades (3).

2. The pulp processing reactor according to claim 1, characterized in that: The height of the upper end of the spiral blade (3) is higher than the height of the liquid level in the kettle body (1).

3. The pulp processing reactor according to claim 1, characterized in that: The kettle body (1) is provided with a feed channel (4), the feed channel (4) comprising a first channel (41) and a second channel (42), the first channel (41) being arranged transversely to communicate with the interior of the kettle body (1), the second channel (42) being arranged vertically above the middle of the first channel (41), the feed channel (4) being provided with a dredging mechanism (6), the dredging mechanism (6) comprising a dredging member (62) and a telescopic drive (61), the dredging member (62) comprising a first rod (621) and a second rod (622), the first rod (621) moving back and forth along the length extension direction of the first channel (41) under the drive of the telescopic drive (61), the second rod (622) being fixedly connected to the middle of the first rod (621) and extending into the second channel (42).

4. The pulp processing reactor according to claim 3, characterized in that: A plurality of short rods (623) are provided at the end of the first rod (621), and the short rods (623) are located at the connection point between the first channel (41) and the kettle body (1).

5. The pulp processing reactor according to claim 1, characterized in that: The number of the driven stirring mechanisms (24) is four.

6. The pulp processing reactor according to claim 1, characterized in that: A door-shaped frame (111) is provided at the upper end of the top cover (11), and the drive motor (21) is fixedly arranged on the lower side of the door-shaped frame (111).

7. The pulp processing reactor according to claim 6, characterized in that: The portal frame (111) is provided with a lifting lug (13).

8. The pulp processing reactor according to claim 1, characterized in that: The spiral blade (3) is arranged on the upper part of the first rotating shaft (22) and the second shaft, and the lower part of the first rotating shaft (22) and the second shaft is also provided with a stirring plate (31).

9. The pulp processing reactor according to claim 8, characterized in that: The stirring plate is provided with a through hole (311).

Images