Acidifying, stirring and size mixing device

Abstract

The utility model relates to the technical field of paper pulp acidification and mixing, in particular to an acidification stirring and mixing device which comprises a stirring mechanism, and the stirring mechanism comprises a mixing cylinder and a base. According to the utility model, the outer walls of the sleeves are equidistantly communicated with a plurality of circular pipes, the motor II is started to drive the top cover to be clamped with the top of the size mixing barrel, then the motor I is started to drive the size mixing barrel to rotate, and the motor III is started to drive the two sleeves to rotate, so that mixed liquid is stirred through the plurality of circular pipes; the air pump is started to guide air adapting to the temperature into the two sleeves through the U-shaped pipe and discharge the air from the multiple one-way valves, the multiple one-way valves rapidly spray out gas to adjust the temperature of the mixed liquid, the temperature adjusting efficiency of the mixed liquid is improved by pumping the gas from the interior of the mixed liquid, the interior of the mixed liquid is turned over through airflow, and the temperature adjusting efficiency of the mixed liquid is improved. The internal precipitation and layering phenomena of the mixed liquid are reduced, so that the mixed liquid is more uniformly mixed and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp acidification and pulp mixing, in particular to an acidification stirring and pulp mixing device. Background Technique

[0002] Papermaking acidification stirring is a key step in the papermaking industry. By adding acidic substances such as sulfuric acid, aluminum sulfate or other organic acids, the pH value of the pulp is reduced, and the mixture of the pulp and the acidic solution is stirred by a stirring device. The acidification treatment can improve the bleaching efficiency of the pulp, enhance the softness and plasticity of the pulp, and improve the printing performance of the paper. During the acidification process, the control of temperature is very important to avoid overheating or too fast chemical reactions. Some existing acidification stirring tanks use heaters on their outer walls or electric heating wires in the interlayers to control the temperature of the mixed liquid. However, it takes a certain amount of time for the heat to conduct from the outer wall of the stirring tank to the inside of the mixed liquid, so the temperature adjustment efficiency of the solution is relatively low. And some stirring tanks only use the stirring method to mix the mixed liquid, which makes it easy to produce pulp stratification and precipitation phenomena inside the mixed liquid, resulting in poor mixing effect, uneven pH values of each layer in the mixed liquid, and inconvenience in use. Content of the Utility Model

[0003] The purpose of the utility model is to provide an acidification stirring and pulp mixing device to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] An acidification stirring and pulp mixing device includes a stirring mechanism. The stirring mechanism includes a pulp mixing cylinder and a base. The pulp mixing cylinder and the base are rotatably connected. An annular shell is fixedly sleeved on the outer wall of the base. The top of the pulp mixing cylinder is slidably connected with a top cover. A thermometer and a pH monitor are fixedly connected to the bottom of the top cover. Two sleeves are rotatably connected to the bottom of the top cover. A plurality of circular tubes are equidistantly communicated with the outer walls of the sleeves. A plurality of one-way valves are fixedly communicated with the outer walls of the circular tubes. A driving module for lifting the top cover is arranged on the top of the annular shell. A regulating module for supplying gas to the two sleeves is arranged on the top of the top cover.

[0006] Furthermore: A collecting hopper and an inclined plate are fixedly connected between the inner walls of the pulp mixing cylinder. A wireless solenoid valve is fixedly installed at the bottom end of the collecting hopper. A discharge pipe and a ventilation pipe are fixedly communicated with the outer wall of the pulp mixing cylinder. A heat preservation cover is fixedly sleeved on the outer wall of the pulp mixing cylinder.

[0007] Furthermore: An outer gear ring one and a sliding ring are fixedly sleeved on the outer wall of the pulp mixing cylinder. The sliding ring is slidably connected between the inner walls of the base. A motor one is fixedly connected to the inner bottom surface of the annular shell. A gear one is fixedly sleeved on the output end of the motor one. The gear one meshes with the outer gear ring one.

[0008] Preferably, a plurality of balls are rotatably connected to the top and bottom of the slip ring at equal intervals.

[0009] Furthermore, the driving module includes two limiting frames symmetrically fixed to the top of the annular shell. A slider is slidably connected inside the limiting frame. One end of the slider is fixedly connected to a connecting frame, and the top end of the connecting frame is fixedly connected to the outer wall of the top cover. A lead screw is rotatably connected inside one of the limiting frames. The lead screw passes through the adjacent slider and is threadedly connected thereto. A second motor is fixedly connected to the top of one of the limiting frames, and the output end of the second motor passes through the limiting frame and is fixedly connected to the top end of the lead screw.

[0010] Furthermore, the regulation module includes a protective shell fixedly connected to the top of the top cover. A U-shaped frame is fixedly connected to the top of the protective shell. An air pump is fixedly connected to the top of the U-shaped frame. The air inlet end of the air pump is fixedly communicated with a corrugated pipe. A U-shaped pipe is arranged above the top cover. Both ends of the U-shaped pipe penetrate through the protective shell and are fixedly connected thereto. The top end of the sleeve is communicated with the adjacent end of the U-shaped pipe through a rotary joint. The air outlet end of the air pump passes through the U-shaped frame and is connected to the U-shaped pipe.

[0011] Furthermore, gear two is fixedly sleeved on the top ends of both sleeves. An outer gear ring two is rotatably connected to the top of the top cover. Both gear two are meshed with the outer gear ring two. A third motor is fixedly connected to the top of the top cover. A fixing frame is fixedly connected to the top of the outer gear ring two. The output end of the third motor passes through the fixing frame and is fixedly connected thereto.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] By equidistantly communicating a plurality of circular pipes on the outer wall of the sleeve, starting the second motor to drive the top cover to be clamped with the top of the slurry mixing barrel, then starting the first motor to drive the slurry mixing barrel to rotate, and starting the third motor to drive the two sleeves to rotate, the mixed liquid is stirred through the plurality of circular pipes. When the temperature of the mixed liquid is inappropriate, start the air pump to introduce air at a suitable temperature into the two sleeves through the U-shaped pipe and discharge it through a plurality of one-way valves. The gas ejected quickly from the plurality of one-way valves adjusts the temperature of the mixed liquid. The method of pumping gas into the mixed liquid from the inside improves the temperature adjustment efficiency of the mixed liquid, and uses the air flow to churn the inside of the mixed liquid, reducing the precipitation and stratification phenomena inside the mixed liquid, making the mixed liquid mix more evenly and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the side sectional structure of the slurry mixing barrel of the present utility model;

[0016] Figure 3 is a partial enlarged structural schematic diagram of part A in the present utility model Figure 2 ;

[0017] Figure 4 is a partial enlarged structural schematic diagram of part B in the present utility model Figure 2 ;

[0018] Figure 5 is a structural schematic diagram of the driving module of the present utility model

[0019] In the figure: 10, stirring mechanism; 11, slurry mixing cylinder; 111, aggregate hopper; 112, wireless solenoid valve; 113, heat preservation cover; 114, inclined plate; 115, discharge pipe; 116, ventilation pipe; 117, first external tooth ring; 118, slip ring; 119, ball; 12, base; 13, annular shell; 131, first motor; 132, first gear; 14, top cover; 141, thermometer; 142, pH monitor; 15, sleeve; 151, round pipe; 152, check valve; 153, second gear; 16, driving module; 161, limit frame; 162, connecting frame; 163, slider; 164, lead screw; 165, second motor; 17, regulation module; 171, protective shell; 172, C-shaped frame; 173, air pump; 174, bellows; 175, U-shaped pipe; 176, rotary joint; 177, second external tooth ring; 178, third motor; 179, fixing frame Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0021] Please refer to Figures 1 to 5 , in the embodiment of the present utility model, an acidification stirring and slurry mixing device includes a stirring mechanism 10. The stirring mechanism 10 includes a slurry mixing cylinder 11 and a base 12. The slurry mixing cylinder 11 and the base 12 are rotatably connected. An annular shell 13 is fixedly sleeved on the outer wall of the base 12. The top of the slurry mixing cylinder 11 is slidably connected with a top cover 14. A thermometer 141 and a pH monitor 142 are fixedly connected to the bottom of the top cover 14. Two sleeves 15 are rotatably connected to the bottom of the top cover 14. A plurality of round pipes 151 are equidistantly communicated with the outer wall of the sleeve 15. A plurality of check valves 152 are fixedly communicated with the outer wall of the round pipe 151. A driving module 16 for lifting the top cover 14 is arranged on the top of the annular shell 13. A regulation module 17 for supplying gas to the two sleeves 15 is arranged on the top of the top cover 14

[0022] Specifically, the one-way valve 152 adopts an existing gas one-way check valve, which can prevent gas and the mixed liquid from flowing into the inside of the round tube 151. The thermometer 141 and the pH monitor 142 monitor the temperature and pH value of the mixed liquid in real time. After quantitatively introducing the pulp and the acidic solution into the sizing cylinder 11, start the second motor 165 to drive the top cover 14 to be clamped with the top of the sizing cylinder 11. Start the first motor 131 to drive the sizing cylinder 11 to rotate and drive the mixed liquid to rotate. Start the third motor 178 to drive the two sleeves 15 to rotate, and stir the mixed liquid through a plurality of round tubes 151. When the temperature of the mixed liquid is inappropriate, start the air pump 173 to introduce the gas at an appropriate temperature into the two sleeves 15 through the U-shaped tube 175 and discharge it from a plurality of one-way valves 152. A plurality of one-way valves 152 quickly spray out gas to control the temperature of the mixed liquid, and use the air flow to churn the inside of the mixed liquid, reducing the precipitation and stratification phenomena inside the mixed liquid, which is convenient for use. Embodiment

[0023] As Figures 1 - 3 As shown, in this embodiment, an aggregate hopper 111 and an inclined plate 114 are fixedly connected between the inner walls of the sizing cylinder 11. A wireless solenoid valve 112 is fixedly installed at the bottom end of the aggregate hopper 111. A discharge pipe 115 and a ventilation pipe 116 are fixedly communicated with the outer wall of the sizing cylinder 11. A heat preservation cover 113 is fixedly sleeved on the outer wall of the sizing cylinder 11. The heat preservation cover 113 adopts a cotton heat insulation pad. An outer gear ring one 117 and a sliding ring 118 are fixedly sleeved on the outer wall of the sizing cylinder 11. The sliding ring 118 is slidably connected between the inner walls of the base 12. A first motor 131 is fixedly connected to the inner bottom surface of the annular shell 13. A gear one 132 is fixedly sleeved on the output end of the first motor 131. The gear one 132 meshes with the outer gear ring one 117. A plurality of balls 119 are equidistantly rotatably connected to the top and bottom of the sliding ring 118.

[0024] In this embodiment, the wireless solenoid valve 112 adopts a wireless control solenoid valve: using wireless signals (such as Wi-Fi, Bluetooth, etc.) to control the solenoid valve, without the need for physical wiring to the power supply or the control unit, and can adapt to the rotation of the sizing cylinder 11. After stirring is completed, the wireless solenoid valve 112 can be started to discharge the material to the top of the inclined plate 114 and discharged through the discharge pipe 115. Moreover, the ventilation pipe 116 can discharge the gas after the round tube 151 blows the gas into the sizing cylinder 11. The rotation limit of the sizing cylinder 11 is realized by the limit of the base 12 on the sliding ring 118. Starting the first motor 131 can drive the gear one 132 to rotate, and drive the sizing cylinder 11 to rotate through the transmission of the gear one 132 and the outer gear ring one 117. The arrangement of the balls 119 facilitates reducing the friction between the base 12 and the sliding ring 118.

[0025] As Figure 5As shown in the figure, in this embodiment, the driving module 16 includes two limiting frames 161 symmetrically and fixedly connected to the top of the annular shell 13. A slider 163 is slidably connected inside the limiting frame 161. One end of the slider 163 is fixedly connected to a connecting frame 162, and the top end of the connecting frame 162 is fixedly connected to the outer wall of the top cover 14. A lead screw 164 is rotatably connected inside one of the limiting frames 161. The lead screw 164 passes through the adjacent slider 163 and is in threaded connection with it. A second motor 165 is fixedly connected to the top of one of the limiting frames 161. The output end of the second motor 165 passes through the limiting frame 161 and is fixedly connected to the top end of the lead screw 164.

[0026] During specific implementation, the sliding limit of the connecting frame 162 and the top cover 14 is realized by the limit of the slider 163 by the limiting frame 161. The second motor 165 is started to drive the lead screw 164 to rotate, thereby driving the top cover 14 to be adjusted in the vertical direction, facilitating the lifting of the top cover 14 to take out the two sleeves 15 for cleaning, facilitating the feeding into the inside of the slurry mixing cylinder 11, and facilitating the use. Embodiment

[0027] On the basis of the first embodiment, in order to be able to drive the two sleeves 15 and stably supply gas to the rotating sleeves 15.

[0028] As Figures 2 - 4 As shown in the figure, in this embodiment, the regulation module 17 includes a protective shell 171 fixedly connected to the top of the top cover 14. A C-shaped frame 172 is fixedly connected to the top of the protective shell 171. An air pump 173 is fixedly connected to the top of the C-shaped frame 172. The air inlet end of the air pump 173 is fixedly connected and communicated with a corrugated pipe 174. Above the top cover 14, a U-shaped pipe 175 is arranged. Both ends of the U-shaped pipe 175 pass through the protective shell 171 and are fixedly connected to it. The top end of the sleeve 15 is communicated with the adjacent end of the U-shaped pipe 175 through a rotary joint 176. The air outlet end of the air pump 173 passes through the C-shaped frame 172 and is connected and communicated with the U-shaped pipe 175. Gear two 153 is fixedly sleeved on the top ends of both sleeves 15. An outer gear ring two 177 is rotatably connected to the top of the top cover 14. Both gear two 153 are meshed with the outer gear ring two 177. A third motor 178 is fixedly connected to the top of the top cover 14. A fixing frame 179 is fixedly connected to the top of the outer gear ring two 177. The output end of the third motor 178 passes through the fixing frame 179 and is fixedly connected to it.

[0029] In specific implementation, the top end of the corrugated pipe 174 is connected to the multi-temperature gas supply system of air, which can regulate the temperature of the air and supply it. The air does not react with the aluminum sulfate solution and can automatically float in the acidic solution, facilitating discharge through the ventilation pipe 116. By supplying dry air at different temperatures, the temperature of the mixed solution can be regulated. And due to the multi-point setting of the one-way valve 152, the temperature control effect is fast and it does not affect the solution. After the air is blown in, the interior of the mixed solution will churn, reducing the phenomena of stratification and precipitation inside the mixed solution. The U-shaped frame 172 is used to fix the air pump 173. The air pump 173 is started to pump air into the U-shaped pipe 175, and enters the sleeve 15 through the rotary joint 176, and is ejected from the multiple one-way valves 152 on the round pipe 151, churning the mixed solution in the slurry mixing barrel 11, reducing the phenomena of precipitation and sealing layer, and regulating the temperature of the mixed solution by injecting gas at different temperatures. The rotary joint 176 adopts a high-temperature rotary joint 176, which can work in a high-temperature environment, is suitable for the transmission of hot gas or steam, and can adapt to the rotation use of the sleeve 15. The top cover 14 limits the rotation of the external gear ring two 177. The motor three 178 is started to drive the external gear ring two 177 to rotate through the fixing frame 179. Through the transmission of the external gear ring two 177 and the two gear two 153, the two sleeves 15 are driven to rotate synchronously and in the same direction. The mixed solution can be stirred through the multiple round pipes 151 on the sleeve 15.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An acidification stirring slurry mixing device, characterized in that: The invention comprises a stirring mechanism (10), wherein the stirring mechanism (10) comprises a slurry mixing cylinder (11) and a base (12), wherein the slurry mixing cylinder (11) and the base (12) are rotatably connected, an annular shell (13) is fixedly sleeved on the outer wall of the base (12), a top cover (14) is slidably connected to the top of the slurry mixing cylinder (11), a thermometer (141) and a pH monitor (142) are fixedly connected to the bottom of the top cover (14), two sleeves (15) are rotatably connected to the bottom of the top cover (14), a plurality of circular tubes (151) are equidistantly connected to the outer wall of the sleeve (15), a plurality of one-way valves (152) are fixedly connected to the outer wall of the circular tube (151), a driving module (16) for lifting the top cover (14) is arranged on the top of the annular shell (13), and a control module (17) for supplying air to the two sleeves (15) is arranged on the top of the top cover (14).

2. The acidification stirring slurry mixing device according to claim 1, characterized in that: A collecting hopper (111) and an inclined plate (114) are fixedly connected between the inner walls of the mixing barrel (11); a wireless solenoid valve (112) is fixedly installed at the bottom end of the collecting hopper (111); a discharge pipe (115) and a vent pipe (116) are fixedly connected to the outer wall of the mixing barrel (11); and a heat-insulating cover (113) is fixedly sleeved on the outer wall of the mixing barrel (11).

3. The acidification stirring slurry mixing device according to claim 1, characterized in that: An outer gear ring (117) and a slip ring (118) are fixedly sleeved on the outer wall of the slurry mixing cylinder (11), and the slip ring (118) is slidably connected between the inner walls of the base (12). A motor (131) is fixedly connected to the inner bottom surface of the annular shell (13), and a gear (132) is fixedly sleeved on the output end of the motor (131), and the gear (132) is meshed with the outer gear ring (117).

4. The acidification stirring slurry mixing device according to claim 3, characterized in that: The top and bottom of the slip ring (118) are equidistantly rotatably connected to a plurality of balls (119).

5. The acidification stirring slurry mixing device according to claim 1, characterized in that: The driving module (16) comprises two limit frames (161) symmetrically fixedly connected to the top of the annular shell (13); a slider (163) is slidably connected inside the limit frames (161); one end of the slider (163) is fixedly connected to a connecting frame (162); the top end of the connecting frame (162) is fixedly connected to the outer wall of the top cover (14); one of the limit frames (161) is rotatably connected to a screw rod (164) inside; the screw rod (164) passes through an adjacent slider (163) and is screwed thereto; the top of one of the limit frames (161) is fixedly connected to a second motor (165); the output end of the second motor (165) passes through the limit frame (161) and is fixedly connected to the top end of the screw rod (164).

6. The acidification stirring slurry mixing device according to claim 1, characterized in that: The control module (17) includes a protective shell (171) fixedly connected to the top of the top cover (14). A U-shaped frame (172) is fixedly connected to the top of the protective shell (171). An air pump (173) is fixedly connected to the top of the U-shaped frame (172). The air inlet end of the air pump (173) is fixedly communicated with a corrugated pipe (174). A U-shaped pipe (175) is arranged above the top cover (14). Both ends of the U-shaped pipe (175) penetrate through the protective shell (171) and are fixedly connected thereto. The top end of the sleeve (15) is communicated with the adjacent end of the U-shaped pipe (175) through a rotary joint (176). The air outlet end of the air pump (173) penetrates through the U-shaped frame (172) and is communicated with the U-shaped pipe (175).

7. The acidification stirring slurry mixing device according to claim 6, characterized in that: Gear two (153) is fixedly sleeved on the top ends of both of the sleeves (15). An external gear ring two (177) is rotatably connected to the top of the top cover (14). Both of the gear two (153) are meshed with the external gear ring two (177). A motor three (178) is fixedly connected to the top of the top cover (14). A fixing frame (179) is fixedly connected to the top of the external gear ring two (177). The output end of the motor three (178) penetrates through the fixing frame (179) and is fixedly connected thereto.

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