Device and process for sodium modification treatment of bentonite

Abstract

The invention relates to the technical field of bentonite modification treatment, and discloses a bentonite sodium modification treatment device and technology.The bentonite sodium modification treatment device comprises an outer frame, a driver, a sleeve and an air blower, the driver and the sleeve are fixedly connected to the top of the outer frame, and the air blower is fixedly connected to the exterior of the driver; the limiter is fixedly connected to the interior of the outer frame, the other end of the mixer is located in the limiter, the mixer is located in the mixing barrel, and when the mixing barrel rotates, transverse mixing is conducted through the mixer and the transverse cutting plate, and extrusion is conducted through the pressing disc. Air flow can be introduced into the limiting pipe through the air blower, the air flow in the limiting pipe can enter the rotary drum through the air holes after entering the limiting pipe, water vapor generated in the mixing process is helped to be dispersed, materials are prevented from caking due to moisture, meanwhile, the suspension property of material particles is enhanced, and the contact rate is increased; the adhesion rate is further reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of bentonite, and more particularly to an apparatus and process for sodium modification treatment of bentonite. Background Technology

[0002] Sodium-based bentonite modification refers to the process of converting natural calcium-based bentonite into sodium-based bentonite through certain technological means, thereby improving its performance. The core of this modification process is to use sodium ions to exchange with calcium ions between the montmorillonite layers in bentonite, thereby changing the crystal structure and surface properties of montmorillonite and improving the various application properties of bentonite.

[0003] However, in existing technologies, bentonite sodiumification utilizes a mixer to conduct an ion exchange reaction between calcium ions in bentonite and sodium ions in sodium salts. Taking a common paddle mixer as an example, its blades are mostly straight or simply inclined at a fixed angle. When rotating, they can only push the material in a unidirectional circular motion, making it difficult to form a complex radial and axial flow field within the mixing chamber. This single flow field pattern means that during the mixing process, the material is located in the corners, bottom edges, and near the mixing shaft of the mixing chamber. Bentonite particles are easily unaffected by the mixing force and remain in a static or slow sliding state, significantly reducing the probability of contact with sodium salts. If the mixing chamber volume is too large and the diameter of the mixing paddle is too small, the kinetic energy generated by the mixing is difficult to transfer to the material near the chamber wall, causing the bentonite particles in the edge area to gradually accumulate due to insufficient mixing intensity, forming a static material layer. The mixing process is hindered by the fact that existing mixers generally use a single rotation mode. Whether the agitator rotates around a fixed axis or the mixing chamber itself rotates, the monotony of the material's movement trajectory cannot be changed. Taking a horizontal ribbon mixer as an example, the ribbon can only drive the material to move in a spiral motion along the axial direction. The collisions between particles are mostly sliding friction in the same direction, lacking cross collisions perpendicular to the direction of movement. This results in the contact area between bentonite and sodium salt being far lower than ideal. When the mixer outlet is located near the chamber wall, these unmixed particles will be discharged prematurely under the centrifugal force. This will cause a considerable proportion of the material to be discharged before the ion exchange is completed, shortening the average residence time of the material. The mixing time of some particles is even extremely short. The sodium ion content in such prematurely discharged material is significantly lower than that of qualified products, which seriously affects the sodiumization reaction effect. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and process for the sodium modification of bentonite, thereby solving the problem of insufficient mixing during the sodium modification of bentonite.

[0005] This invention proposes an apparatus for sodium modification of bentonite, comprising an outer frame, a driver and a sleeve fixedly connected to the top of the outer frame, a blower fixedly connected to the outside of the driver, a limiter fixedly connected to the inside of the outer frame, a mixing cylinder rotatably connected to the inside of the sleeve, a mixer slidably connected to the inside of the sleeve, a pressure plate fixedly connected to the outside of the mixer, a transverse cutting plate slidably connected to the mixing cylinder, and a material distribution component fixedly connected to the top of the inside of the outer frame. The output end of the driver is fixedly connected to the mixing cylinder, and the output end of the driver is provided with a reciprocating screw. One end of the mixer is sleeved outside the reciprocating screw. The pressure plate is located at one end of the sleeve near the driver, and the other end of the mixer is located inside the limiter. The mixer is located inside the mixing cylinder, and the mixing cylinder is in contact with the inner wall of the sleeve. When the mixing cylinder rotates, the mixture is laterally mixed by the mixer and the transverse cutting plate, and extruded by the pressure plate.

[0006] Furthermore, the mixing cylinder includes a rotating cylinder rotatably connected inside the sleeve, and multiple mixing plates equidistantly arranged and fixedly connected inside the rotating cylinder. The rotating cylinder has an inlet slot and an arc groove, the angle of which is less than 180 degrees. Multiple leakage holes are provided on the side of the rotating cylinder near the limiter and in the arc groove.

[0007] Furthermore, the top of the sleeve is provided with a feed inlet, a powder outlet and a vibrator, the bottom of the sleeve is provided with a discharge outlet, a scraper is snapped onto the outer wall of the sleeve, the feed inlet is located directly above the feed trough, the material distribution component is located inside the powder outlet, the powder outlet is located directly above the arc groove, and the area directly above the discharge outlet is an open area.

[0008] Furthermore, the mixer includes a shaft tube slidably connected inside the sleeve, multiple mixing cutting discs equidistantly arranged and fixedly connected to the outside of the shaft tube, and an air transfer disc fixedly connected to the middle of the shaft tube. One end of the shaft tube is provided with a sleeve groove, and the reciprocating screw is located inside the sleeve groove. The other end of the shaft tube is provided with a protruding strip tube, and the protruding strip tube is located inside the limiter.

[0009] Furthermore, the shaft tube is provided with multiple air holes, the shaft tube is interconnected with the air conveyor plate, and the air conveyor plate is located between the material distribution component and the convex strip tube.

[0010] Furthermore, the limiter includes a limiting tube fixedly connected inside the sleeve and a cross fixedly connected outside the limiting tube. The cross fits against one side of the rotating cylinder, and the limiting tube communicates with the shaft tube.

[0011] Furthermore, the pressure plate includes a disc fixedly connected to the shaft tube, and a ring snapped onto one side of the disc. The diameter of the disc is equal to the inner diameter of the rotating drum, and the disc does not contact the mixing plate.

[0012] Furthermore, the transverse cutting plate includes a straight rod slidably connected to the outside of the mixing plate, blades fixedly connected to the straight rod, and multiple connecting rings equidistantly arranged and all fixedly connected to the straight rod. The number and position of the straight rods correspond one-to-one with the mixing plate. All of the straight rods are connected to the blades. The blades are rotatably connected between the rings and the disk. The connecting rings do not contact the air transfer plate.

[0013] Furthermore, a support frame is fixedly connected inside the powder inlet, and the dispensing component includes a dispensing disc that is arc-shaped and connected inside the support frame, as well as a spring connected between the dispensing disc and the support frame. The bottom edge of the dispensing disc is arc-shaped.

[0014] Another aspect of the present invention provides: a process for sodium modification of bentonite, employing an apparatus for sodium modification of bentonite, comprising the following steps: Step 1: Raw material pretreatment. The bentonite ore is initially crushed to make its particle size meet the process standards, thereby increasing the specific surface area of ​​the particles. At the same time, sodium salt is accurately measured according to the formula to ensure the accurate dosage of sodiumizing agent.

[0015] Step 2: Put the pretreated bentonite into the mixing drum, and at the same time place the metered sodium salt on top of the mixing drum. Stir the mixture in the mixing drum to achieve initial fusion of the two materials.

[0016] Step 3: By using the rotation and pushing motion of the mixing drum and mixer, a continuous force is applied to the material to promote the uniform dispersion of sodium salt.

[0017] Step 4: After the mixing reaction achieves the expected results, it is then sent to the drying and pulverizing processes to complete the connection of the entire sodium treatment process.

[0018] The beneficial effects of this invention are: The rotating drum drives the mixing plate to rotate, generating circumferential power. The shaft tube drives the straight rod to move horizontally, generating axial power. The two forces are superimposed in the mixing space, so that the material particles are simultaneously subjected to centrifugal force, shear force and thrust, making the mixing distribution more uniform, fundamentally ensuring the completeness of the exchange reaction, and improving the stability of the final product quality.

[0019] Airflow can be introduced into the limiting tube through the blower. After entering the limiting tube, the airflow will enter the rotating drum through the air hole, which helps to disperse the water vapor generated during the mixing process, prevent the material from clumping due to moisture, enhance the suspension of material particles, and increase the contact rate. At the same time, the synergistic effect of airflow and bidirectional shear force further reduces the adhesion rate and improves production efficiency.

[0020] Power is transmitted entirely through mechanical structure via the rotation of the mixing drum and the horizontal reciprocating motion of the mixer. The output end of the driver is directly and fixedly connected to the mixing drum, and at the same time, it forms a helical pair with the mixer through the reciprocating screw, so that the power transmission is direct and without lag. This ensures that the rotational speed of the mixing drum is strictly matched with the horizontal movement speed of the mixer. When the mixing drum rotates, the transverse cutting plate obtains rotational power mechanically through a sliding connection with the mixing plate, avoiding possible failures of electronic components or complex control systems. It can still maintain stable operation in industrial environments with dust and vibration. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram from a first perspective of the present invention; Figure 2 This is a top view of the sleeve of the present invention; Figure 3 For the present invention Figure 2 Sectional view at point AA; Figure 4 This is a schematic diagram of the mixing cylinder of the present invention; Figure 5 This is a schematic diagram of the transverse cutting plate of the present invention; Figure 6 This is a schematic diagram of the mixer of the present invention; Figure 7 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 8 This is a cross-sectional view of the overall structure of the present invention.

[0022] In the picture: 1. Outer frame; 2. Driver; 21. Reciprocating screw; 3. Sleeve; 31. Feed inlet; 32. Powder inlet; 321. Support frame; 33. Vibrator; 34. Discharge outlet; 35. Scraper; 301. Open area; 4. Blower; 5. Limiter; 51. Limit tube; 52. Cross; 6. Mixing cylinder; 61. Rotary cylinder; 611. Leakage hole; 62. Mixing plate; 601. Feed trough; 602. Arc groove; 7. Mixer; 71. Shaft tube; 711. Sleeve groove; 712. Protruding strip tube; 701. Air hole; 72. Mixing cutting disc; 73. Air transfer disc; 8. Pressure plate; 81. Disc; 82. Ring; 9. Transverse cutting plate; 91. Straight rod; 92. Blade; 93. Connecting ring; 10. Material distribution component; 101. Material distribution disc; 102. Spring. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Example 1, refer to Figures 1-8 This is the first embodiment of the present invention, providing an apparatus and process for the sodium modification treatment of bentonite, including an outer frame 1, a driver 2 and a sleeve 3 fixedly connected to the top of the outer frame 1, a blower 4 fixedly connected to the outside of the driver 2, a limiter 5 fixedly connected to the inside of the outer frame 1, a mixing cylinder 6 rotatably connected to the inside of the sleeve 3, a mixer 7 slidably connected to the inside of the sleeve 3, a pressure plate 8 fixedly connected to the outside of the mixer 7, a transverse cutting plate 9 slidably connected to the mixing cylinder 6, and a material distribution component 10 fixedly connected to the top of the inside of the outer frame 1. The output end of the driver 2 is connected to the mixing cylinder. 6. Fixed connection: The output end of the driver 2 is provided with a reciprocating screw 21. One end of the mixer 7 is sleeved on the outside of the reciprocating screw 21. The pressure plate 8 is located at one end of the sleeve 3 near the driver 2. The other end of the mixer 7 is located inside the limiter 5. The mixer 7 is located inside the mixing cylinder 6. The mixing cylinder 6 is in contact with the inner wall of the sleeve 3. When the mixing cylinder 6 rotates, it is mixed laterally by the mixer 7 and the transverse cutting plate 9, forming a rotational and transverse separation mixing. At the same time, when the mixer 7 moves horizontally, it drives the pressure plate 8, thereby using the pressure plate 8 to squeeze the bentonite, so that the mixed bentonite is squeezed out of the mixing cylinder 6.

[0025] Specifically, as the mixer 7 moves with the reciprocating screw 21, the pressure plate 8 squeezes the bentonite, causing it to leave the interior of the mixing cylinder 6. At the same time, it continuously pushes the bentonite to move, causing the bentonite to be squeezed together, thus avoiding material jamming caused by fixed gaps. During the mixing process, the material is continuously turned, cut, and reassembled under the action of the rotational force of the mixing cylinder 6 and the lateral thrust of the transverse cutting plate 9. Even if the bentonite has a high moisture content or the sodium salts are slightly agglomerated, they can be broken by the shearing force of the mixer 7 and the transverse cutting plate 9, effectively preventing the accumulation of static material layers at the edges and ensuring that the material in the entire mixing space is always in an active mixing state.

[0026] Reference Figures 1-4 The mixing cylinder 6 includes a rotating cylinder 61 rotatably connected inside the sleeve 3, and multiple mixing plates 62 equidistantly arranged and fixedly connected inside the rotating cylinder 61. The rotating cylinder 61 has an inlet 601 and an arc groove 602. The corresponding angle of the arc groove 602 is less than 180 degrees. Multiple leakage holes 611 are opened on the side of the rotating cylinder 61 near the limiter 5 and in the arc groove 602. Sodium salt will intermittently enter the rotating cylinder 61 from the leakage holes 611 of the arc groove 602, while the bentonite near the leakage holes 611 will slowly leave the interior of the rotating cylinder 61 under the pressure of the pressure plate 8.

[0027] Specifically, the arc groove 602 is located on the outer wall of the rotating drum 61, and its corresponding angle is less than 180 degrees. This allows the area of ​​the arc groove 602 to intermittently contact the sodium salt storage area of ​​the sleeve 3 during the rotation of the rotating drum 61. When the arc groove 602 is aligned with the sodium salt storage area, under the action of gravity and the centrifugal force generated by the rotation of the rotating drum 61, sodium salt particles fall into the rotating drum 61 through the leakage hole 611. When the arc groove 602 leaves the aligned position, the leakage hole 611 is sealed by the inner wall of the sleeve, and the feeding is temporarily stopped. This allows the sodium salt to be added to the bentonite in batches and evenly, avoiding localized concentrations caused by a single feeding. To address the issue of excessive height, the rotating drum 61 also has densely packed perforations 611 at one end near the limiter 5. When the mixer 7 drives the pressure plate 8 to move towards the other end of the rotating drum 61, the bentonite is continuously mixed and pushed, ensuring that the bentonite reaching the position near the limiter 5 has been effectively mixed. The fully mixed bentonite is then discharged from the rotating drum 61 through these perforations 611 under the pressure. Point discharge avoids the problem of local pressure concentration and the entrainment of unmixed materials, achieving gradient contact and reaction between bentonite and sodium salt, and significantly improving mixing efficiency and uniformity.

[0028] Reference Figures 1-4 The top of the sleeve 3 is provided with a feed inlet 31, a powder inlet 32 ​​and a vibrator 33, and the bottom of the sleeve 3 is provided with a discharge outlet 34. A scraper 35 is attached to the outer wall of the sleeve 3. The feed inlet 31 is located directly above the feed trough 601. The material distribution component 10 is located inside the powder inlet 32. The powder inlet 32 ​​is located directly above the arc groove 602. The empty area 301 is directly above the discharge outlet 34. The limiter 5 is located in the empty area 301. The bentonite squeezed out of the rotating drum 61 will enter the empty area 301.

[0029] Specifically, during equipment operation, the vibrator 33 starts at intervals of 10-15 seconds, with each vibration lasting 2-3 seconds. This intermittent vibration effectively prevents the agglomeration and blockage of sodium salt in the powder inlet 32 ​​and the distribution components, ensuring smooth flow of sodium salt. Simultaneously, the slight vibrations allow sodium salt particles on the surface of the arc groove 602 to more easily pass through the drain hole 611 into the rotating drum 61, improving feeding efficiency. After the pressure plate 8 squeezes the mixed bentonite through the drain hole 611 at the bottom of the rotating drum 61, the material first enters the open area 301, ensuring it can smoothly slide down to the discharge port 34. During the rotation of the drum 61, the feed trough 601 is always aligned with the feed inlet 31, allowing the bentonite ore to fall quickly into the drum 61. At the same time, the material distribution component 10 evenly sprinkles sodium salt on the surface of the arc groove 602. As the drum 61 continues to rotate, the sodium salt in the arc groove 602 area intermittently enters the drum 61 through the drain hole 611 and mixes with the bentonite. When the mixer 7 drives the pressure plate 8 to move towards the bottom of the drum 61, the mixed material is squeezed out of the drum 61 and enters the open area 301, and finally is discharged from the equipment through the discharge port 34. Throughout the process, the vibrator 33 is periodically activated to ensure smooth material conveying and avoid blockage.

[0030] Reference Figures 2-6 The mixer 7 includes a shaft tube 71 slidably connected inside the sleeve 3, multiple mixing and cutting discs 72 equidistantly arranged and fixedly connected to the outside of the shaft tube 71, and an air transfer disc 73 fixedly connected to the middle of the shaft tube 71. One end of the shaft tube 71 is provided with a sleeve groove 711, and the reciprocating screw 21 is located inside the sleeve groove 711. The other end of the shaft tube 71 is provided with a protruding strip tube 712, which is located inside the limiter 5. The limiter 5 restricts the protruding strip tube 712, so that the shaft tube 71 can only move horizontally, and thus the shaft tube 71 cannot rotate with the reciprocating screw 21. When the reciprocating screw 21 rotates, it will drive the shaft tube 71 to reciprocate. When the shaft tube 71 reciprocates, the pressure plate 8 and the transverse cutting plate 9 connected to it will move synchronously to form a transverse cut.

[0031] Specifically, the shaft tube 71 is made of high-strength alloy steel pipe and forms a helical pair with the external thread of the reciprocating screw 21. Two rectangular protrusions are evenly distributed axially on the outer wall of the protrusion tube 712 at the other end. These protrusions are embedded in corresponding rectangular grooves on the inner wall of the limiter 5, allowing the shaft tube 71 to slide freely axially while completely restricting its circumferential rotation. When the driver 2 drives the reciprocating screw 21 to rotate, the shaft tube 71, constrained by the limiter 5, cannot rotate with the screw. The force of the helical pair is converted into axial thrust, driving the shaft tube 71 horizontally. The reciprocating motion of the mixing cutting disc 72 and the lateral cutting plate 9 results in a coordinated cutting action. When the shaft tube 71 moves back and forth, the mixing cutting disc 72 moves synchronously with it. Its cutting edge generates a strong lateral shearing force on the material inside the rotating drum 61. At the same time, the reciprocating motion of the mixing cutting disc 72 and the mixing plate 62 inside the rotating drum 61 form a cross-cutting action. When the rotating drum 61 drives the mixing plate 62 to rotate to be parallel with the cutting disc, the axial movement of the mixing cutting disc 72 will generate squeezing and shearing forces between the two, improving the uniformity of dispersion and preventing material accumulation on both sides of the cutting disc.

[0032] Reference Figures 2-6 The shaft tube 71 has multiple air holes 701. The shaft tube 71 is interconnected with the air transfer plate 73. The air transfer plate 73 is located between the material distribution component 10 and the convex strip tube 712. The limiter 5 is fixedly connected to the limiting tube 51 inside the sleeve 3 and the cross 52 is fixedly connected to the outside of the limiting tube 51. The cross 52 is attached to one side of the rotating drum 61. The limiting tube 51 is interconnected with the shaft tube 71.

[0033] Specifically, the blower 4 can introduce airflow into the limiting tube 51. After the airflow enters the limiting tube 51, it will enter the rotating drum 61 through the air hole 701, which helps to disperse the water vapor generated during the mixing process, prevent the material from clumping due to moisture, and enhance the suspension of material particles and increase the contact probability. When the squeezed bentonite moves, it will pass through the leakage hole 611. At the same time, since the rotating drum 61 is in a rotating state, the bentonite squeezed out of the rotating drum 61 will enter the open area 301, be blocked and dispersed by the cross 52, and then fall into the discharge port 34.

[0034] In addition, the air-assisted dispersion function of the air transfer plate 73 is that the air transfer plate 73 in the middle of the shaft tube 71 is a hollow structure. When the blower 4 is working, the compressed air is transported to the air transfer plate 73 through the inner cavity of the shaft tube, and then sprayed into the material through the air outlet. The airflow impact force is used to further disperse the fine agglomerates, so that the sodium salt moves closer to the pressure plate 8 and mixes better with the bentonite that has just entered the rotating drum 61.

[0035] Reference Figures 3-7 The pressure plate 8 includes a disc 81 fixedly connected to the shaft tube 71, and a ring 82 snapped onto one side of the disc 81. The diameter of the disc 81 is equal to the inner diameter of the rotating drum 61, and the disc 81 does not contact the mixing plate 62.

[0036] The transverse cutting plate 9 includes a straight rod 91 slidably connected to the outside of the mixing plate 62, a blade 92 fixedly connected to the straight rod 91, and multiple connecting rings 93 equidistantly arranged and fixedly connected to the straight rod 91. The number and position of the straight rods 91 correspond one-to-one with the mixing plate 62. All the straight rods 91 are connected to the blades 92. The blades 92 are rotatably connected between the ring 82 and the disk 81. The connecting rings 93 do not contact the air transfer plate 73. When the rotating cylinder 61 rotates, it will drive the multiple straight rods 91 to rotate through the mixing plate 62, thereby increasing the mixing area. At the same time, the straight rods 91 are driven by the disk 81 to move horizontally, forming a bidirectional mixing force.

[0037] Reference Figures 1-8 The powder inlet 32 ​​is fixedly connected to a support frame 321. The dispensing component 10 includes a dispensing disc 101 that is arc-shaped and connected inside the support frame 321, and a spring 102 that is connected between the dispensing disc 101 and the support frame 321. The bottom edge of the dispensing disc 101 is arc-shaped. When the dispensing disc 101 coincides with the arc groove 602, the dispensing disc 101 will enter the arc groove 602, thereby opening the powder inlet 32.

[0038] The working principle of this invention is as follows: After the driver 2 starts, its output end drives the rotating drum 61 to rotate inside the sleeve 3, providing circumferential motion power for the material. At the same time, it drives the reciprocating screw 21 to rotate. The reciprocating screw 21, through its threaded engagement with the sleeve groove 711 of 71, combined with the circumferential constraint of the convex strip tube 712 by the limiter 5, converts the rotational motion into the horizontal reciprocating motion of the shaft tube 71. This, in turn, drives the pressure plate 8 and the transverse cutting plate 9 to move horizontally synchronously, forming transverse power. Bentonite is fed in through the feed port 31 at the top of the sleeve 3. Since the feed port 31 is directly opposite the feed groove of the rotating drum 61, 601. The material falls directly into the rotating drum 61 and rotates with it, driven by the mixing plate 62 to make a circular motion. Sodium salt is fed in through the powder inlet 32. The distribution plate 101, under the action of the spring 102, cooperates with the arc groove 602 of the rotating drum 61. When the rotating drum 61 rotates and the arc groove 602 coincides with the distribution plate 101, the distribution plate 101 enters the arc groove 602, the powder inlet 32 ​​opens, and the sodium salt falls into the arc groove 602. After the arc groove 602 leaves the distribution plate 101, the inner wall of the sleeve 3 closes the arc groove 602, completing the intermittent feeding. At the same time, the vibrator 33 cycles. The vibration assists in the descent of sodium salt and prevents blockage, ensuring that sodium salt enters the rotating drum 61 in batches evenly. As the drum 61 rotates, the internal mixing plate 62 drives the material in a circular motion. Simultaneously, the straight rod 91 rotates synchronously with the mixing plate 62, and the blades 92 reciprocate horizontally with the shaft tube 71, forming a bidirectional shearing action of rotation and lateral movement. The mixing cutting disc 72 intersects with the mixing plate 62, breaking up bentonite agglomerates. Furthermore, the airflow generated by the blower 4 enters the shaft tube 71 through the limiting pipe 51, and a portion is radially sprayed through the air outlet of the air transfer disc 73, further dispersing the newly entered sodium salt. The salt is sprayed axially through the vent 701 of the shaft tube 71 to reduce material adhesion and disperse moisture, thereby enhancing the mixing effect. The mixed material moves towards the limiting tube 51 as the drum 61 rotates and the shaft tube 71 pushes it. The disc 81 and the shaft tube 71 move together to compress the material. Under pressure, the material is discharged through the vent 611 on the side of the drum 61 near the limiting tube 51 and enters the open area 301 of the sleeve 3. The cross 52 blocks the dispersed material to prevent agglomeration. Finally, the material is collected through the bottom outlet 34, completing the sodium modification process.

[0039] Example 2, refer to Figures 1-8 This is a second embodiment of the present invention, a process for sodium modification of bentonite, employing a device for sodium modification of bentonite, comprising the following steps: Step 1: Raw material pretreatment. The bentonite ore is initially crushed to make its particle size meet the process standards, thereby increasing the specific surface area of ​​the particles. At the same time, sodium salt is accurately measured according to the formula to ensure the accurate dosage of sodiumizing agent.

[0040] Step 2: Put the pretreated bentonite into the mixing cylinder 6, and at the same time place the metered sodium salt on top of the mixing cylinder 6. Stir the mixture in the mixing cylinder 6 to achieve initial fusion of the two materials.

[0041] Step 3: By using the rotation and pushing action of mixing cylinder 6 and mixer 7, a force is continuously applied to the material to promote the uniform dispersion of sodium salt.

[0042] Step 4: After the mixing reaction achieves the expected results, it is then sent to the drying and pulverizing processes to complete the connection of the entire sodium treatment process.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for sodium modification treatment of bentonite, comprising an outer frame (1), characterized in that: It also includes a driver (2) and a sleeve (3) fixedly connected to the top of the outer frame (1), a blower (4) fixedly connected to the outside of the driver (2), a limiter (5) fixedly connected to the inside of the outer frame (1), a mixing cylinder (6) rotatably connected to the inside of the sleeve (3), a mixer (7) slidably connected to the inside of the sleeve (3), a pressure plate (8) fixedly connected to the outside of the mixer (7), a transverse cutting plate (9) slidably connected to the mixing cylinder (6), and a material distribution piece (10) fixedly connected to the top of the inside of the outer frame (1). The output end of the driver (2) is connected to the mixing cylinder (6). The drive (2) is fixedly connected to the output end of the driver (2) and a reciprocating screw (21) is provided. One end of the mixer (7) is sleeved on the outside of the reciprocating screw (21). The pressure plate (8) is located at one end of the sleeve (3) near the driver (2). The other end of the mixer (7) is located inside the limiter (5). The mixer (7) is located inside the mixing cylinder (6). The mixing cylinder (6) is in contact with the inner wall of the sleeve (3). When the mixing cylinder (6) rotates, it is mixed laterally by the mixer (7) and the transverse cutting plate (9) and squeezed by the pressure plate (8).

2. The apparatus for sodium modification of bentonite according to claim 1, characterized in that: The mixing cylinder (6) includes a rotating cylinder (61) rotatably connected inside the sleeve (3) and a plurality of mixing plates (62) equidistantly arranged and fixedly connected inside the rotating cylinder (61). The rotating cylinder (61) is provided with a feed inlet (601) and an arc groove (602). The angle of the arc groove (602) is less than 180 degrees. The rotating cylinder (61) near the limiter (5) and the arc groove (602) are provided with a plurality of leakage holes (611).

3. The apparatus for sodium modification of bentonite according to claim 2, characterized in that: The top of the sleeve (3) is provided with a feed inlet (31), a powder outlet (32) and a vibrator (33), and the bottom of the sleeve (3) is provided with a discharge outlet (34). A scraper (35) is attached to the outer wall of the sleeve (3). The feed inlet (31) is located directly above the feed trough (601). The material distribution component (10) is located inside the powder outlet (32). The powder outlet (32) is located directly above the arc groove (602). The area directly above the discharge outlet (34) is an open area (301).

4. The apparatus for sodium modification of bentonite according to claim 2, characterized in that: The mixer (7) includes a shaft tube (71) slidably connected inside the sleeve (3), multiple mixing cutting discs (72) equidistantly arranged and fixedly connected to the outside of the shaft tube (71), and an air transfer disc (73) fixedly connected to the middle of the shaft tube (71). One end of the shaft tube (71) is provided with a sleeve groove (711), and the reciprocating screw (21) is located inside the sleeve groove (711). The other end of the shaft tube (71) is provided with a protruding strip tube (712), and the protruding strip tube (712) is located inside the limiter (5).

5. The apparatus for sodium modification of bentonite according to claim 4, characterized in that: The shaft tube (71) is provided with multiple air holes (701), the shaft tube (71) is interconnected with the air transfer plate (73), and the air transfer plate (73) is located between the material distribution component (10) and the convex strip tube (712).

6. The apparatus for sodium modification of bentonite according to claim 4, characterized in that: The limiter (5) has a limiting tube (51) fixedly connected inside the sleeve (3) and a cross (52) fixedly connected outside the limiting tube (51). The cross (52) is attached to one side of the rotating cylinder (61), and the limiting tube (51) is in communication with the shaft tube (71).

7. The apparatus for sodium modification of bentonite according to claim 4, characterized in that: The pressure plate (8) includes a disc (81) fixedly connected to the shaft tube (71) and a ring (82) snapped onto one side of the disc (81). The diameter of the disc (81) is equal to the inner diameter of the rotating drum (61), and the disc (81) does not contact the mixing plate (62).

8. The apparatus for sodium modification of bentonite according to claim 7, characterized in that: The transverse cutting plate (9) includes a straight rod (91) slidably connected to the outside of the mixing plate (62), a blade (92) fixedly connected to the straight rod (91), and multiple connecting rings (93) equidistantly arranged and fixedly connected to the straight rod (91). The number and position of the straight rod (91) correspond one-to-one with the mixing plate (62). Multiple straight rods (91) are connected to the blades (92). The blades (92) are rotatably connected between the ring (82) and the disk (81). The connecting rings (93) do not contact the air transfer plate (73).

9. The apparatus for sodium modification of bentonite according to claim 3, characterized in that: The powder inlet (32) is fixedly connected to a support frame (321). The dispensing component (10) includes a dispensing disc (101) that is arc-connected inside the support frame (321), and a spring (102) that is connected between the dispensing disc (101) and the support frame (321). The bottom edge of the dispensing disc (101) is arc-shaped.

10. A process for sodium modification of bentonite, employing the apparatus for sodium modification of bentonite as described in claim 1, characterized in that, Includes the following steps: Step 1: Raw material pretreatment. The bentonite ore is initially crushed to make its particle size meet the process standards, thereby increasing the specific surface area of ​​the particles. At the same time, sodium salt is accurately measured according to the formula to ensure the accurate dosage of sodiumizing agent. Step 2: Put the pretreated bentonite into the mixing drum (6), and at the same time place the measured sodium salt on top of the mixing drum (6). Stir the mixture in the mixing drum (6) to achieve initial fusion of the two materials. Step 3: By using the rotation and pushing action of the mixing drum (6) and the mixer (7), a force is continuously applied to the material to promote the uniform dispersion of sodium salt; Step 4: After the mixing reaction achieves the expected results, it is then sent to the drying and pulverizing processes to complete the connection of the entire sodium treatment process.

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