Causticizing reaction tank

Abstract

The utility model provides a causticizing reaction tank which comprises a reaction box, a stirring assembly is arranged in the reaction box, a discharging assembly is arranged at the bottom of the reaction box, and a servo motor is controlled to work according to the required rotating speed, so that the servo motor can drive a first cutting knife and a driving gear to rotate through a driving shaft; the driving gear can drive the second cutting knife to synchronously rotate in different directions through the driven gear and the driven shaft, so that the causticization reaction materials in the reaction box are comprehensively cut and stirred by the rotating first cutting knife and the rotating second cutting knife, and the reaction speed of the causticization reaction materials is higher; when causticization reaction materials are cut up and stirred and subjected to causticization reaction to a required state, the causticization reaction materials in the reaction box can slide downwards into the discharge cylinder and are discharged by the rotating auger only by opening the discharge valve, so that the discharge valve is prevented from being easily accumulated and blocked during discharging.

Description

Technical Field

[0001] The utility model relates to the technical field of causticizing reaction, in particular to a causticizing reaction tank. Background Art

[0002] Causticizing reaction refers to the reaction between slaked lime and carbonate ions. It has a wide range of applications. For example, the causticizing method commonly used to produce caustic soda (NaOH) from natural alkali is an example of the practical application of causticizing reaction. The natural alkali solution is subjected to causticizing reaction with an excess of not less than 2% lime to convert sodium carbonate into sodium hydroxide to form liquid caustic soda. The obtained liquid caustic soda can be made into solid caustic soda containing more than 95% NaOH through clarification, filtration, evaporation concentration, cold precipitation desalination and melting processes.

[0003] Publication No. "CN218422794U" provides an automatically vented causticizing reaction tank. Through the coordinated use of an air pump and an air inlet pipe, the air pump is used to discharge the heat generated during the causticizing reaction in the inner cavity of the causticizing tank. At the same time, external air is introduced into the inner cavity of the causticizing tank from the air inlet pipe, thereby realizing the function of discharging the heat generated during the causticizing reaction in the inner cavity of the causticizing tank, thereby improving the practicality of the automatically vented causticizing reaction tank. In addition, through the coordinated use of a servo motor, a rotating rod and a cutting knife, the servo motor is used to drive the rotating rod and the cutting knife to rotate, and the cutting knife is used to chop and stir the materials of the causticizing reaction, thereby improving the efficiency of the causticizing reaction.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the causticizing reaction tank has automatic exhaust capability and chopping and stirring capability, the cutting blade is located in the lower part of the reaction box, which results in that the causticizing reaction materials in the upper part of the causticizing tank cannot be effectively chopped and stirred during actual use, and the chopping and stirring range needs to be improved. Secondly, the discharge method of the reaction tank is to drive the support roller to move upward by the electric push rod and push the reaction box to rotate along the top of the rotating column for discharge. However, this discharge method not only makes it easy for the causticizing reaction materials in the causticizing tank to accumulate at the inlet of the electric control valve, resulting in a slow discharge speed, but also the setting of the rotating column reduces the use stability of the reaction box, and the practicality is poor. Utility Model Content

[0006] The utility model aims to provide a causticizing reaction tank to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A causticizing reaction tank comprises a reaction box, supporting legs, a box cover and a feeding hopper, wherein the upper end surface of the reaction box is provided with a box cover, the right side of the upper end surface of the box cover is fixedly connected with the feeding hopper, the left and right sides of the lower end surface of the reaction box are symmetrically fixedly connected with supporting legs, a stirring assembly is arranged inside the reaction box, and the stirring assembly is used to chop and stir the causticizing reaction material inside the reaction box, and a discharge assembly is arranged at the bottom of the reaction box, and the discharge assembly is used to actively discharge the causticizing reaction material inside the reaction box.

[0009] Preferably, the stirring assembly includes a servo motor, a driving shaft, a first cutting knife, a driven shaft, a second cutting knife, a driven gear and a driving gear. The driving shaft is installed on the upper side of the reaction box, the servo motor is installed on the left end of the driving shaft, the first cutting knife is symmetrically arranged on the upper and lower sides of the annular side surface of the driving shaft, the driving gear is arranged on the right end of the driving shaft, the driven gear is meshed with the lower side of the annular side surface of the driving gear, the driven shaft is installed on the lower side of the reaction box, and the second cutting knife is symmetrically arranged on the upper and lower sides of the annular side surface of the driven shaft.

[0010] Preferably, the discharge assembly includes a driving pulley, a driven pulley, a discharge cylinder, an auger and a discharge valve, a driving pulley is provided on the left side of the annular side of the driving shaft, a discharge valve is installed at the middle position of the bottom of the reaction box, the discharge valve outlet is connected to the discharge cylinder, an auger is provided inside the discharge cylinder, and a driven pulley is provided at the left end of the auger.

[0011] Preferably, there are multiple first cutting knives with the same specifications, there are multiple second cutting knives with the same specifications, the multiple first cutting knives are arranged alternately with the second cutting knives, and a protective cover is installed on the right end face of the reaction box.

[0012] Preferably, a limiting ring is provided on the left side of the annular side surface of the auger, an anti-slip ring is installed on the left end surface of the discharge cylinder, and a transmission belt is connected between the driving pulley and the driven pulley.

[0013] Preferably, an air outlet elbow is fixedly connected to the left side of the upper end surface of the box cover plate, and an axial flow fan is installed at the outlet of the air outlet elbow.

[0014] Preferably, a first mechanical seal is installed on the upper side of the inner wall of the reaction box, and a second mechanical seal is installed on the lower side of the inner wall of the reaction box.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By controlling the servo motor to work at the required speed, the servo motor can drive the first cutting knife and the driving gear to rotate through the driving shaft, and the driving gear will drive the second cutting knife to rotate synchronously in opposite directions through the driven gear and the driven shaft, so that the rotating first cutting knife and the second cutting knife can fully chop and stir the causticizing reaction materials inside the reaction box, thereby making the reaction speed of the causticizing reaction materials faster;

[0017] 2. When the servo motor drives the driving shaft to rotate, the driving shaft will also drive the auger to rotate through the driving pulley, the transmission belt and the driven pulley, so that when the discharge valve is opened later, the rotating auger will slide into the discharge cylinder and actively discharge the causticized reaction materials to the right, avoiding the discharge valve from being easily blocked during discharge, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a front cross-sectional view of the discharge assembly and the stirring assembly in the utility model;

[0020] Figure 3 It is a structural diagram of the discharging component and the stirring component in the utility model;

[0021] Figure 4 It is a structural diagram of the discharge assembly in the utility model;

[0022] Figure 5 This is a structural diagram of the stirring component in the utility model.

[0023] In the figure: 1. reaction box; 11. first mechanical seal; 12. second mechanical seal; 2. support leg; 3. discharge assembly; 31. driving pulley; 32. transmission belt; 33. driven pulley; 34. discharge cylinder; 341. anti-slip ring; 35. auger; 351. limit ring; 36. discharge valve; 4. stirring assembly; 41. servo motor; 42. driving shaft; 43. first cutting knife; 44. driven shaft; 45. second cutting knife; 46. driven gear; 47. driving gear; 48. protective cover; 5. box cover; 51. air outlet elbow; 52. axial flow fan; 6. feeding hopper. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A causticizing reaction tank comprises a reaction box 1, support legs 2, a box cover 5 and a hopper 6. The upper end surface of the reaction box 1 is installed with a box cover 5, and the box cover 5 is a detachable structure. The detachable box cover 5 is convenient for the later staff to maintain and repair the inside of the reaction box 1. The right side of the upper end surface of the box cover 5 is fixedly connected with the hopper 6. The hopper 6 is convenient for the staff to introduce an appropriate amount of causticizing reaction materials into the reaction box 1. The left and right sides of the lower end surface of the reaction box 1 are symmetrically fixedly connected with support legs 2. The bottom of the support legs 2 is installed and fixed to the ground by expansion bolts. The support legs 2 can firmly support and fix the reaction box 1. An air outlet elbow 51 is fixedly connected to the left side of the upper end surface of the box cover plate 5. The air outlet elbow 51 can not only conduct the heat generated by the causticizing reaction inside the reaction box 1 to the inlet of the axial flow fan 52, but also prevent the causticizing reaction materials inside the reaction box 1 from directly splashing into the inside of the axial flow fan 52. An axial flow fan 52 is installed at the outlet of the air outlet elbow 51. The axial flow fan 52 is connected to an external control switch through a wire, and the outlet of the axial flow fan 52 is connected to an external exhaust end through a pipeline. When working, the axial flow fan 52 can generate a suction force to absorb the heat generated by the causticizing reaction inside the reaction box 1 through the air outlet elbow 51.

[0028] A stirring assembly 4 is provided inside the reaction box 1, and the stirring assembly 4 is used to chop and stir the causticized reaction material inside the reaction box 1. A discharge assembly 3 is provided at the bottom of the reaction box 1, and the discharge assembly 3 is used to actively discharge the causticized reaction material inside the reaction box 1. A causticizing reaction chamber is opened inside the reaction box 1, and the causticizing reaction chamber facilitates the reaction of the causticized reaction material inside the reaction box 1.

[0029] The stirring assembly 4 includes a servo motor 41, a driving shaft 42, a first cutting blade 43, a driven shaft 44, a second cutting blade 45, a driven gear 46 and a driving gear 47. The driving shaft 42 is installed on the upper side of the reaction box 1. The driving shaft 42 is connected to the driving pulley 31, the first cutting blade 43 and the driving gear 47 by welding. The driving shaft 42 can drive the first cutting blade 43 and the driving gear 47 to rotate. The servo motor 41 is installed on the left end of the driving shaft 42. The servo motor 41 is connected to the external servo motor 41 controller through a wire. The servo motor 41 can The driving shaft 42 is driven to rotate at a required speed. First cutting knives 43 are symmetrically arranged on the upper and lower sides of the annular side surface of the driving shaft 42. There are multiple first cutting knives 43, and the multiple first cutting knives 43 have the same specifications. The multiple first cutting knives 43 can chop and stir the causticized reaction materials in the upper half of the reaction box 1 when rotating. A driving gear 47 is arranged at the right end of the driving shaft 42. The driving gear 47 can drive the driven gear 46 to rotate. The lower side of the annular side surface of the driving gear 47 is meshed with a driven gear 46, and the driven gear 46 can drive the driven shaft 44 to rotate.

[0030] A driven shaft 44 is installed at the lower side of the reaction box 1. The driven shaft 44 is connected to the driven gear 46 and the second cutting knife 45 by welding. The driven shaft 44 can drive the second cutting knife 45 to rotate. The second cutting knives 45 are symmetrically arranged on the upper and lower sides of the annular side surface of the driven shaft 44. The plurality of first cutting knives 43 and the second cutting knives 45 are staggered. The second cutting knives 45 staggered with the first cutting knives 43 can chop and stir the causticized reaction materials in the lower half of the reaction box 1. The right end surface of the reaction box 1 is provided with A protective cover 48 is installed, and the protective cover 48 is a detachable structure. The protective cover 48 can shield the driving gear 47 and the driven gear 46. A first mechanical seal 11 is installed on the upper side of the inner wall of the reaction box 1. The first mechanical seal 11 matches the driving shaft 42. The first mechanical seal 11 makes the sealing between the driving shaft 42 and the reaction box 1 better. A second mechanical seal 12 is installed on the lower side of the inner wall of the reaction box 1. The second mechanical seal 12 matches the driven shaft 44. The second mechanical seal 12 makes the sealing between the driven shaft 44 and the reaction box 1 better.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment, in this embodiment, while the servo motor 41 drives the driving shaft 42 to rotate, the driving shaft 42 also drives the auger 35 to rotate together through the driving pulley 31, the transmission belt 32 and the driven pulley 33, so that when the discharge valve 36 is opened later, the rotating auger 35 will actively discharge the causticized reaction materials that have fallen into the discharge cylinder 34 to the right side, thereby avoiding the discharge valve 36 from being easily blocked by accumulation during discharge.

[0033] The discharge assembly 3 includes a driving pulley 31, a driven pulley 33, a discharge cylinder 34, an auger 35 and a discharge valve 36. The driving pulley 31 is arranged on the left side of the annular side of the driving shaft 42. A transmission belt 32 is connected between the driving pulley 31 and the driven pulley 33. The driving pulley 31 can drive the driven pulley 33 to rotate through the transmission belt 32. A discharge valve 36 is installed at the middle position of the bottom of the reaction box 1. The outlet of the discharge valve 36 is connected to the discharge cylinder 34, and the inlet of the discharge valve 36 is connected to the reaction box 1. The discharge valve 36 is connected to the external control panel through a wire. The discharge valve 36 is an electric slurry valve. The discharge valve 36 of the electric slurry valve is convenient for the staff to automatically control the on and off of the discharge of materials from the reaction box 1. The outlet of the discharge valve 36 is connected to the discharge cylinder 34. The discharge cylinder 34 facilitates the rotating auger 35 to transport the causticized reaction material discharged by the discharge valve 36 to the right.

[0034] An auger 35 is provided inside the discharge cylinder 34, and the auger 35 is connected to the limiting ring 331 and the driven pulley 33 by welding. When the auger 35 rotates, it can transport the causticized reaction material in the discharge cylinder 34 to the right. A driven pulley 33 is provided at the left end of the auger 35, and the driven pulley 33 can drive the auger 35 to rotate. A limiting ring 331 is provided on the left side of the annular side surface of the auger 35, and an anti-disengagement ring 341 is installed on the left end surface of the discharge cylinder 34. The limiting ring 331 and the anti-disengagement ring 341 prevent the auger 35 from being displaced during use.

[0035] Working principle: the staff first pushes the external material receiving trolley to the appropriate position below the right end of the discharge tube 34, and then controls the servo motor 41 to work at the required speed through the external servo motor 41 controller (in this process, the servo motor 41 cannot rotate too fast to avoid the first cutting knife 43 and the second cutting knife 45 rotating too fast during the chopping and stirring of the causticizing reaction material, resulting in debris splashing out). At this time, the servo motor 41 will drive the first cutting knife 43 and the driving gear 47 to rotate through the driving shaft 42, and the driving gear 47 will drive the second cutting knife 45 to rotate synchronously in the opposite direction through the driven gear 46 and the driven shaft 44. At the same time, the driving shaft 42 will also drive the driving pulley 31 to rotate together, so that the driving pulley 31 drives the auger 35 to rotate through the transmission belt 32 and the driven pulley 33; then, an appropriate amount of causticizing reaction material can be put into the reaction box 1 through the feeding hopper 6. At this time, the rotating multiple first cutting knives 43 will chop and stir the causticizing reaction material in the upper part of the reaction box 1, and the rotating multiple The second cutting blade 45 will chop and stir the causticizing reaction material in the lower half of the reaction box 1, so as to chop and stir the causticizing reaction material in the reaction box 1 comprehensively, so that the causticizing reaction material in the reaction box 1 reacts faster. In this process, the staff only needs to start the axial flow fan 52, so that the working axial flow fan 52 can discharge the heat generated in the causticizing reaction process in the reaction box 1 through the air outlet elbow 51, and at the same time, a part of the external air will enter the reaction box 1 through the feeding hopper 6. When the causticizing reaction material in the reaction box 1 is chopped, stirred and causticized to the required state, the discharge valve 36 is opened, so that the causticizing reaction material in the reaction box 1 can slide down into the discharge tube 34. At this time, the rotating auger 35 will actively transport the causticizing reaction material in the discharge tube 34 to the right and discharge it to the external material receiving trolley, so as to avoid the discharge valve 36 from being easily accumulated and blocked during the discharge. When the causticizing reaction material in the reaction box 1 and the discharge tube 34 is completely discharged, the servo motor 41 can be turned off.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A causticizing reaction tank, comprising a reaction box (1), supporting legs (2), a box cover (5) and a feeding hopper (6), characterized in that: The upper end surface of the reaction box (1) is provided with a box cover (5), the right side of the upper end surface of the box cover (5) is fixedly connected to a feeding hopper (6), and the lower end surface of the reaction box (1) is symmetrically fixedly connected to support legs (2) on both sides; The reaction box (1) is provided with a stirring assembly (4) inside, and the stirring assembly (4) is used to chop and stir the causticized reaction material inside the reaction box (1); the reaction box (1) is provided with a discharge assembly (3) at the bottom, and the discharge assembly (3) is used to actively discharge the causticized reaction material inside the reaction box (1).

2. A causticizing reaction tank according to claim 1, characterized in that: The stirring assembly (4) comprises a servo motor (41), a driving shaft (42), a first cutting blade (43), a driven shaft (44), a second cutting blade (45), a driven gear (46) and a driving gear (47). The driving shaft (42) is mounted on the upper side of the reaction box (1). The servo motor (41) is mounted on the left end of the driving shaft (42). The first cutting blade (43) is symmetrically arranged on the upper and lower sides of the annular side surface of the driving shaft (42). The driving gear (47) is mounted on the right end of the driving shaft (42). The driven gear (46) is meshed on the lower side of the annular side surface of the driving gear (47). The driven shaft (44) is mounted on the lower side of the reaction box (1). The second cutting blade (45) is symmetrically arranged on the upper and lower sides of the annular side surface of the driven shaft (44).

3. A causticizing reaction tank according to claim 2, characterized in that: The discharge assembly (3) comprises a driving pulley (31), a driven pulley (33), a discharge cylinder (34), an auger (35) and a discharge valve (36); a driving pulley (31) is arranged on the left side of the annular side surface of the driving shaft (42); a discharge valve (36) is installed at the middle position of the bottom of the reaction box (1); an outlet of the discharge valve (36) is connected to the discharge cylinder (34); an auger (35) is arranged inside the discharge cylinder (34); and a driven pulley (33) is arranged at the left end of the auger (35).

4. A causticizing reaction tank according to claim 2, characterized in that: A plurality of the first cutting knives (43) are provided, and the specifications of the plurality of first cutting knives (43) are the same; a plurality of the second cutting knives (45) are provided, and the specifications of the plurality of second cutting knives (45) are the same; the plurality of the first cutting knives (43) and the second cutting knives (45) are arranged in a staggered manner; and a protective cover (48) is installed on the right end surface of the reaction box (1).

5. A causticizing reaction tank according to claim 3, characterized in that: A limit ring (331) is arranged on the left side of the annular side surface of the auger (35), an anti-slip ring (341) is installed on the left end surface of the discharge cylinder (34), and a transmission belt (32) is connected between the driving pulley (31) and the driven pulley (33).

6. A causticizing reaction tank according to claim 1, characterized in that: An air outlet elbow (51) is fixedly connected to the left side of the upper end surface of the box cover plate (5), and an axial flow fan (52) is installed at the outlet of the air outlet elbow (51).

7. A causticizing reaction tank according to claim 1, characterized in that: A first mechanical seal (11) is installed on the upper side of the inner wall of the reaction box (1), and a second mechanical seal (12) is installed on the lower side of the inner wall of the reaction box (1).

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