Production line for producing dissolving pulp by using cooking process

Abstract

The invention relates to the field of dissolving pulp production, in particular to a production line for producing dissolving pulp by a cooking process, which comprises a mixing mechanism, a spherical digester and a feeding mechanism for conveying materials discharged by the mixing mechanism to the spherical digester; the mixing mechanism comprises a support, an inner barrel body with a top opening is fixedly mounted at the top of the support, a discharging pipe is arranged at the bottom of the inner barrel body, an outer barrel body with a lower end opening is arranged on the outer side of the inner barrel body, the outer barrel body sleeves the outer side of the upper end of the inner barrel body, and a feeding opening is formed in the top of the outer barrel body; a stirring mechanism for stirring materials in the inner barrel body is arranged on the outer barrel body, and a driving mechanism for driving the outer barrel body to reciprocate up and down is arranged on the support; the stirring shaft revolves and rotates to stir materials in the inner barrel body, so that dissolving pulp raw materials and alkali liquor are efficiently and uniformly mixed, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the field of dissolving pulp production, and in particular to a production line for producing dissolving pulp by using a cooking process. Background Art

[0002] Dissolving pulp is a special chemical pulp composed of high-purity cellulose and is the main raw material for producing cellulose fiber (also known as regenerated cellulose fiber). According to the raw materials used in production, dissolving pulp is mainly divided into cotton pulp, hemp pulp, wood pulp and bamboo pulp.

[0003] In the prior art, the utility model patent with application number CN202122070260.4 discloses a steaming ball for cotton pulp production, including a steaming ball body, the bottom of the steaming ball body is fixedly connected with a base, the top of the base and located on the right side of the steaming ball body is fixedly connected with a cylindrical tube, the top of the cylindrical tube is fixedly connected with a motor, the output end of the motor penetrates to the top of the inner wall of the cylindrical tube and is fixedly connected with a spiral lifting rod, and the bottom of the spiral lifting rod is fixedly connected to the bottom of the inner wall of the cylindrical tube through a bearing. The spiral lifting rod is driven to rotate by the output end of the motor, and then the raw materials are poured into the feed hopper, and the raw materials are moved upward by the spiral lifting rod, and finally the raw materials are allowed to enter the upper hopper through the discharge pipe, and the raw materials are allowed to fall into the steaming ball body through the upper hopper.

[0004] The cotton pulp production ball steamer solves the problem that the existing steamer loading is too troublesome and requires a ladder to load. However, the cotton pulp production ball steamer has a single function and cannot ensure that the alkali solution and the dissolving pulp raw material are fully mixed together, which will affect the quality of the product. Summary of the invention

[0005] The object of the present invention is to provide a production line for producing dissolving pulp by using a cooking process, in which alkali solution and dissolving pulp raw materials are fully mixed and then automatically transported to a steaming ball to solve the defects mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A production line for producing dissolving pulp by a cooking process, comprising a mixing mechanism, a steaming ball and a feeding mechanism for conveying material discharged from the mixing mechanism to the steaming ball; the mixing mechanism comprises a support, an inner barrel body with an open top is fixedly mounted on the top of the support, a discharge pipe is provided at the bottom of the inner barrel body, an outer barrel body with an open lower end is provided on the outer side of the inner barrel body, the outer barrel body is sleeved on the outer side of the upper end of the inner barrel body, a feeding port is provided on the top of the outer barrel body, a stirring mechanism for stirring the material in the inner barrel body is provided on the outer barrel body, and a driving mechanism for driving the outer barrel body to reciprocate up and down is provided on the support.

[0008] As a preferred technical solution, the stirring mechanism includes a vertically extending center column fixedly mounted on the inner side of the bottom wall of the outer barrel body, a coaxially arranged hollow drum is rotatably mounted on the outer side of the center column, a stirring shaft extending radially along the center column is rotatably mounted on the side wall of the drum, a stirring rod vertically arranged thereto is fixedly mounted on the stirring shaft located on the outer side of the drum, a small bevel gear is fixedly mounted on the stirring shaft located inside the drum, and a large bevel gear meshing with the small bevel gear is fixedly mounted on the center column; a power device for driving the drum to rotate is provided on the outer barrel body.

[0009] As a preferred technical solution, the rotating drum includes two arc-shaped plates arranged opposite to each other, and the two arc-shaped plates form a circular tube shape; it also includes an upper sealing seat and a lower sealing seat for respectively sealing the upper ends and lower ends of the two arc-shaped plates, and the two arc-shaped plates are respectively fixedly connected to the upper sealing seat and the lower sealing seat; the central column vertically penetrates the upper sealing seat, and the upper sealing seat and the lower sealing seat are respectively rotatably connected to the central column.

[0010] As a preferred technical solution, the power device includes a power motor fixedly mounted on the outer barrel body, a driving pulley is fixedly mounted on the rotating shaft of the power motor, a driven pulley is fixedly mounted on the upper sealing seat, and a belt is connected between the driving pulley and the driven pulley.

[0011] As a preferred technical solution, the driving mechanism includes a vertical plate fixedly mounted on the support, a driving motor with a horizontally extending rotating shaft is mounted on the vertical plate, an eccentric wheel is fixedly mounted on the rotating shaft of the driving motor, a supporting wheel matching the eccentric wheel is rotatably mounted on the outer barrel body, and the eccentric wheel is supported at the bottom of the supporting wheel.

[0012] As a preferred technical solution, an annular plate is fixedly installed on the outer side of the lower end of the outer barrel body, a vertically extending guide rod is fixedly installed on the top of the support, and the annular plate is vertically slidably installed on the guide rod; a stopper is fixedly installed on the upper end of the guide rod, and a spring is provided between the stopper and the annular plate.

[0013] As a preferred technical solution, the feeding mechanism includes a material receiving box, the lower end of the discharge pipe is fixedly installed on the top of the material receiving box, a conveying pipe is fixedly installed on one side of the material receiving box, the end of the conveying pipe away from the material receiving box extends obliquely upward to above the steaming ball, a discharge port is provided at the bottom of the high end of the conveying pipe, and a conveying screw driven to rotate by a conveying motor is provided in the conveying pipe.

[0014] As a preferred technical solution, a bracket is fixedly installed on the bottom of the conveying pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The power motor drives the drum to rotate, and the drum drives the stirring shaft to revolve around the central column. At the same time, the small bevel gear rotates relative to the large bevel gear. The large bevel gear acts on the small bevel gear to drive the stirring shaft to rotate. The stirring shaft revolves and rotates to stir the materials in the inner barrel, so as to efficiently mix the dissolving pulp raw materials and alkali solution evenly and improve the product quality;

[0017] 2. While the stirring shaft revolves and rotates to stir the materials in the inner barrel, the eccentric wheel is driven by the driving motor to rotate. The eccentric wheel acts on the supporting wheel and drives the outer barrel to reciprocate up and down. Then the outer barrel drives the rotating drum and multiple stirring shafts to reciprocate up and down, thereby expanding the stirring range and improving the uniformity of stirring the materials in the inner barrel;

[0018] 3. When the raw materials for producing dissolving slurry are evenly mixed with alkali solution in the inner barrel, start the conveying motor to drive the conveying screw to rotate. Driven by the conveying screw, the material in the receiving box enters the conveying pipe and is conveyed to the steam ball through the discharge port, which saves more manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a mixing mechanism according to an embodiment of the present invention;

[0022] Figure 3 2 is a schematic structural diagram of an inner barrel body according to an embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the structure of the drum according to an embodiment of the present invention.

[0024] In the figure: 1-mixing mechanism; 2-steaming ball; 3-feeding mechanism; 4-inner barrel; 5-discharging pipe; 6-valve; 7-outer barrel; 8-feeding port; 9-center column; 10-rotating drum; 11-arc plate; 12-upper blocking seat; 13-lower blocking seat; 14-stirring shaft; 15-stirring rod; 16-small bevel gear; 17-large bevel gear; 18-power motor; 19-driving pulley; 20-driven pulley; 21-belt; 22-vertical plate; 23-driving motor; 24-eccentric wheel; 25-support wheel; 26-annular plate; 27-guide rod; 28-block; 29-spring; 30-collecting box; 31-conveying pipe; 32-bracket; 33-discharging port; 34-feeding port; 35-conveying motor; 36-conveying screw; 37-support. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, a production line for producing dissolving pulp by using a cooking process comprises a mixing mechanism 1, a steaming ball 2 and a feeding mechanism 3 for conveying the material discharged from the mixing mechanism 1 to the steaming ball 2.

[0027] like Figure 2 and Figure 3 As shown, the mixing mechanism 1 includes a support 37, and an inner barrel body 4 with an opening at the top is fixedly installed on the top of the support 37 by bolts. A discharge pipe 5 is provided at the bottom of the inner barrel body 4, and the discharge pipe 5 passes through the support 37 downward. A valve 6 is provided on the discharge pipe 5. An outer barrel body 7 with an opening at the lower end is provided on the outer side of the inner barrel body 4. Both the inner barrel body 4 and the outer barrel body 7 are cylindrical. The outer barrel body 7 is sleeved on the outer side of the upper end of the inner barrel body 4. A feeding port 8 is provided on the top of the outer barrel body 7, and an openable cover is provided on the top of the feeding port 8.

[0028] The outer barrel body 7 is provided with a stirring mechanism for stirring the material in the inner barrel body 4. The stirring mechanism includes a vertically extending center column 9 whose upper end is fixedly mounted on the inner side of the bottom wall of the outer barrel body 7 by bolts. The center column 9 is coaxially arranged with the inner barrel body 4, and a coaxially arranged hollow rotating drum 10 is rotatably mounted on the outer side of the center column 9.

[0029] like Figure 3 and Figure 4As shown, the drum 10 includes two arc-shaped plates 11 arranged opposite to each other, which enclose a circular tube shape and are fixedly connected by bolts, so as to facilitate the disassembly and assembly of the drum 10; it also includes an upper sealing seat 12 and a lower sealing seat 13 for respectively sealing the upper and lower ends of the two arc-shaped plates 11, and the two arc-shaped plates 11 are fixedly connected to the upper sealing seat 12 and the lower sealing seat 13 by bolts, so as to prevent the material in the inner barrel body 4 from entering the interior of the drum 10; the center column 9 vertically penetrates the upper sealing seat 12, and the upper sealing seat 12 and the lower sealing seat 13 are rotatably connected to the center column 9 by bearings, so as to improve the rotation stability of the drum 10.

[0030] A stirring shaft 14 extending radially along the center column 9 is rotatably mounted on the two arc plates 11 through bearings, and a plurality of stirring shafts 14 are evenly spaced vertically to improve the stirring efficiency; a stirring rod 15 vertically arranged is welded to the stirring shaft 14 located outside the rotating drum 10, and a plurality of stirring rods 15 are evenly spaced on the stirring shaft 14, a small bevel gear 16 is fixedly mounted on the stirring shaft 14 located inside the rotating drum 10, and a large bevel gear 17 is fixedly mounted on the center column 9 located between two horizontally opposite small bevel gears 16, and the corresponding small bevel gear 16 is meshed with the large bevel gear 17.

[0031] The outer barrel body 7 is provided with a power device for driving the rotating drum 10 to rotate. The power device is specifically a power motor 18 installed on the top of the outer barrel body 7 by bolts. The rotating shaft of the power motor 18 extends downward into the outer barrel body 7 and is fixedly installed with a driving pulley 19. A driven pulley 20 is fixedly installed on the top of the upper sealing seat 12, and a belt 21 is connected between the driving pulley 19 and the driven pulley 20.

[0032] When in use, the raw materials for producing dissolving slurry and alkali solution are added into the inner barrel body 4 through the feeding port 8, and then the power motor 18 is started. The power motor 18 drives the driven pulley 20 and the rotating drum 10 to rotate through the driving pulley 19 and the belt 21. The rotating drum 10 drives the stirring shaft 14 to revolve around the central column 9. At the same time, the small bevel gear 16 rotates relative to the large bevel gear 17. The large bevel gear 17 acts on the small bevel gear 16 to drive the stirring shaft 14 to rotate. The stirring shaft 14 drives the stirring rod 15 to stir the material in the inner barrel body 4.

[0033] like Figure 1As shown, a driving mechanism for driving the outer barrel body 7 to reciprocate up and down is provided on the support 37, and the driving mechanism includes a vertical plate 22 fixedly installed on the top of the support 37 by bolts, and two vertical plates 22 are oppositely provided on the left and right, and the inner barrel body 4 is located between the two vertical plates 22. A driving motor 23 with a horizontally extending rotating shaft is installed on the upper end of the vertical plate 22 by bolts, and the rotating shafts of the two driving motors 23 are arranged facing each other. An eccentric wheel 24 is fixedly installed on the rotating shaft of the driving motor 23, and support wheels 25 matching the eccentric wheel 24 are respectively installed on the left and right sides of the outer barrel body 7, and the eccentric wheel 24 is supported at the bottom of the corresponding support wheel 25.

[0034] While the stirring shaft 14 revolves and rotates to stir the material in the inner barrel body 4, the eccentric wheel 24 is driven to rotate by the driving motor 23, and the eccentric wheel 24 acts on the supporting wheel 25 and drives the outer barrel body 7 to reciprocate up and down, and then the outer barrel body 7 drives the rotating drum 10 and multiple stirring shafts 14 to reciprocate up and down, thereby expanding the stirring range and improving the uniformity of stirring the material in the inner barrel body 4.

[0035] An annular plate 26 is welded to the outer side of the lower end of the outer barrel 7, and a vertically extending guide rod 27 is fixedly installed on the top of the support 37. A plurality of guide rods 27 are evenly spaced around the inner barrel 4. The annular plate 26 is vertically slidably installed on the guide rod 27, which can prevent the outer barrel 7 from rotating around the inner barrel 4 and prevent the support wheel 25 from deviating from the eccentric wheel 24. The lower end of the guide rod 27 is provided with an external thread and screwed on the support 37. The upper end of the guide rod 27 is integrally formed with a stopper 28. A spring 29 is sleeved on the guide rod 27 between the stopper 28 and the annular plate 26. The spring 29 gives a downward thrust to the annular plate 26 and the outer barrel 7, so that the support wheel 25 is closely attached to the top of the corresponding eccentric wheel 24, thereby improving the efficiency of the eccentric wheel 24 driving the outer barrel 7 to move up and down.

[0036] like Figure 1 As shown, the feeding mechanism 3 includes a material receiving box 30 located below the support 37, the lower end of the discharge pipe 5 is fixedly installed on the top of the material receiving box 30 by bolts and is connected to the material receiving box 30, a conveying pipe 31 is welded on one side of the material receiving box 30, one end of the conveying pipe 31 is connected to the material receiving box 30, a bracket 32 ​​is welded on the bottom of the conveying pipe 31, one end of the conveying pipe 31 away from the material receiving box 30 extends obliquely upward to the top of the steam ball 2, and a discharge port 33 is provided at the bottom of the high end of the conveying pipe 31. When the feed port 34 of the steam ball 2 rotates to the top, the discharge port 33 is located directly above the feed port 34. A conveying motor 35 is installed at the high end of the conveying pipe 31 by bolts, the rotating shaft of the conveying motor 35 extends into the conveying pipe 31 and is fixedly installed with a conveying screw 36, and the conveying screw 36 is coaxially arranged with the conveying pipe 31.

[0037] After the raw materials for producing the dissolving slurry and the alkali solution are uniformly mixed in the inner barrel body 4, the valve 6 on the discharge pipe 5 is opened, and the material in the inner barrel body 4 enters the receiving box 30 through the discharge pipe 5; then the conveying motor 35 is started to drive the conveying screw 36 to rotate, and under the drive of the conveying screw 36, the material in the receiving box 30 enters the conveying pipe 31 and is conveyed to the steam ball 2 through the discharge port 33.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A production line for producing dissolving pulp using a cooking process, characterized in that: It includes a mixing mechanism, a steaming ball and a feeding mechanism for conveying the material discharged from the mixing mechanism to the steaming ball; the mixing mechanism includes a support, an inner barrel body with a top opening is fixedly installed on the top of the support, a discharge pipe is provided at the bottom of the inner barrel body, an outer barrel body with a lower end opening is provided on the outer side of the inner barrel body, the outer barrel body is sleeved on the outer side of the upper end of the inner barrel body, a feeding port is provided on the top of the outer barrel body, a stirring mechanism for stirring the material in the inner barrel body is provided on the outer barrel body, and a driving mechanism for driving the outer barrel body to reciprocate up and down is provided on the support.

2. A production line for producing dissolving pulp using a cooking process as claimed in claim 1, characterized in that: The stirring mechanism includes a vertically extending center column fixedly mounted on the inner side of the bottom wall of the outer barrel body, a coaxially arranged hollow drum is rotatably mounted on the outer side of the center column, a stirring shaft extending radially along the center column is rotatably mounted on the side wall of the drum, a stirring rod vertically arranged thereto is fixedly mounted on the stirring shaft located outside the drum, a small bevel gear is fixedly mounted on the stirring shaft located inside the drum, and a large bevel gear meshing with the small bevel gear is fixedly mounted on the center column; a power device for driving the drum to rotate is provided on the outer barrel body.

3. A production line for producing dissolving pulp by cooking process as claimed in claim 2, characterized in that: The rotating drum includes two arc-shaped plates arranged opposite to each other, and the two arc-shaped plates form a circular tube shape; it also includes an upper sealing seat and a lower sealing seat for sealing the upper ends and the lower ends of the two arc-shaped plates respectively, and the two arc-shaped plates are fixedly connected to the upper sealing seat and the lower sealing seat respectively; the central column vertically penetrates the upper sealing seat, and the upper sealing seat and the lower sealing seat are rotatably connected to the central column respectively.

4. A production line for producing dissolving pulp by cooking process as claimed in claim 3, characterized in that: The power device comprises a power motor fixedly mounted on the outer barrel body, a driving pulley is fixedly mounted on the rotating shaft of the power motor, a driven pulley is fixedly mounted on the upper blocking seat, and a belt is connected between the driving pulley and the driven pulley.

5. A production line for producing dissolving pulp by cooking process as claimed in claim 1, characterized in that: The driving mechanism includes a vertical plate fixedly mounted on the support, a driving motor with a horizontally extending rotating shaft is mounted on the vertical plate, an eccentric wheel is fixedly mounted on the rotating shaft of the driving motor, a supporting wheel matching the eccentric wheel is rotatably mounted on the outer barrel, and the eccentric wheel is supported at the bottom of the supporting wheel.

6. A production line for producing dissolving pulp by cooking process as claimed in claim 5, characterized in that: An annular plate is fixedly mounted on the outer side of the lower end of the outer barrel body, a vertically extending guide rod is fixedly mounted on the top of the support, and the annular plate is vertically slidably mounted on the guide rod; a stopper is fixedly mounted on the upper end of the guide rod, and a spring is provided between the stopper and the annular plate.

7. A production line for producing dissolving pulp by cooking process as claimed in claim 1, characterized in that: The feeding mechanism includes a material receiving box, the lower end of the discharge pipe is fixedly installed on the top of the material receiving box, a conveying pipe is fixedly installed on one side of the material receiving box, one end of the conveying pipe away from the material receiving box extends obliquely upward to above the steaming ball, a discharge port is provided at the bottom of the high end of the conveying pipe, and a conveying screw driven to rotate by a conveying motor is provided in the conveying pipe.

8. A production line for producing dissolving pulp by cooking process as claimed in claim 7, characterized in that: A bracket is fixedly installed at the bottom of the conveying pipe.

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