Compound modified bentonite mixing mill

Abstract

The utility model discloses a compound modified bentonite mixing mill which comprises a rack assembly, a mixing box body, a mixing and grinding cover plate, a mixing and grinding roller, a mixing and grinding motor and a feeding mechanism, the mixing box body is of a groove-shaped structure with an opening in the top, the mixing and grinding cover plate is detachably arranged on the top of the mixing box body, the mixing box body is obliquely arranged on the rack assembly, and the feeding mechanism is arranged on the mixing box body. A plurality of mixing and grinding rollers perpendicular to the axis of the mixing box are arranged in the mixing box, the two ends of each mixing and grinding roller are fixedly connected to the side wall of the mixing box through bearings, any end of each mixing and grinding roller is in transmission connection with a mixing and grinding motor, and a feeding mechanism is arranged at the upper end of the mixing box. According to the utility model, the interior of bentonite can be exposed through repeated rolling to be mixed with a modifier to react, so that a waterproof film formed by the reaction is prevented from influencing the reaction of the bentonite and the modifier, the mixing effect of the bentonite and the modifier can be better, the quality of the bentonite can be effectively improved, and the service life of the bentonite is prolonged. And the efficiency is considered while the quality of the bentonite is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to refractory material technical field especially relates to a compound modified bentonite mixing mill. BACKGROUND

[0002] Bentonite is also called bentonite rock, which is a non-metallic mineral product with montmorillonite as the main mineral component. Due to its special chemical properties, such as adsorption, adhesion and cation exchange, it is widely used in various industrial fields. In the application of metallurgical industry, in order to optimize the hydration properties of bentonite, sodium modification treatment is needed to improve the physical and chemical properties and process performance of bentonite. However, in the actual industrial application, it is found that because the calcium magnesium base of bentonite is insoluble in water and has poor dispersibility, when a certain amount of sodium carbonate is added to the bentonite and stirred by a stirring device for modification reaction, the reaction only occurs on the surface of the bentonite, and the sodium-modified surface forms a good water barrier film, which inhibits the reaction between the internal bentonite and sodium carbonate. Therefore, developing a device that can improve the reaction of modified bentonite is the key to solving the problem. SUMMARY

[0003] The utility model discloses a compound modified bentonite mixing mill.

[0004] The utility model discloses a compound modified bentonite mixing mill.

[0005] The utility model discloses a compound modified bentonite mixing mill. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 It is the structural schematic diagram of the utility model;

[0007] Figure 2 It is the structural schematic diagram of the utility model;

[0008] Figure 3 It is the structural schematic diagram of the utility model;

[0009] Figure 4 is a structure schematic view of the mixing box;

[0010] Figure 5 is a structure schematic view of the mixing cover plate from below;

[0011] Figure 6 is a structure schematic view of the feeding mechanism from above;

[0012] Figure label: 1~frame assembly, 2~mixing box, 3~mixing cover plate, 4~mixing roller, 5~mixing motor, 6~feeding mechanism, 7~scraper, 8~speed changer, 9~discharge port. DETAILED DESCRIPTION

[0013] In order to make the skilled in the art better understand the technical scheme of the present application, the specific embodiments thereof will be described in detail below with reference to the accompanying drawings.

[0014] As Figures 1-6 shown in the composite modified bentonite mixing machine, including frame assembly 1, mixing box 2, mixing cover plate 3, mixing roller 4, mixing motor 5 and feeding mechanism 6, the mixing box 2 is a slot structure with the top open, in the mixing box 2 is provided with several mixing roller 4 perpendicular to its axis, the gap distance between the mixing roller 4 and the inner bottom plate of the mixing box 2 is 0.5~5cm, the two ends of the mixing roller 4 are respectively connected and fixed on the side wall of the mixing box 2 through the shaft cooperation bearing, in order to ensure the mixing effect, prevent bentonite from leaking from both ends, the spacing between the two end faces of the mixing roller 4 and the side wall of the mixing box 2 is 0.5~1cm, and any end of each mixing roller 4 is respectively provided with a driving wheel connected with the mixing motor 5 through a belt or a chain, in order to control the speed difference of the mixing roller 4, improve the mixing effect, the output end of the mixing motor 5 or the shaft at one end of the mixing roller 4 is provided with a speed changer 8 to control the speed of each mixing roller 4, prolong the rolling mixing time, the output end of the speed changer 8 is also provided with a driving wheel;

[0015] The mixing cover plate 3 is detachably arranged on the top of the mixing box 2, the lower surface of the mixing cover plate 3 is provided with several downward inclined scrapers 7, the included angle β between the scraper 7 and the mixing cover plate 3 is an acute angle, the number of the scraper 7 is consistent with that of the mixing roller 4, and the mixing roller 4 is above the mixing cover plate 3, the gap distance between the mixing roller 4 and the scraper 7 is 1~3cm; the mixing box 2 is inclinedly arranged on the frame assembly 1, the inclination angle between the mixing box 2 and the horizontal plane is 15°~20°, that is, the upper end of the mixing box 2 is the feeding port, and the lower end is the discharge port 9, the feeding mechanism 6 is arranged on the upper end of the mixing box 2, the feeding mechanism 6 is a screw feeder, and the bottom thereof is communicated with the upper end of the mixing box 2.

[0016] The working mode of the mixer mixing: start the feeding mechanism 6, the mixing motor 5 runs, put the bentonite and the organic modifier into the feeding mechanism 6 of the mixing extruder described in the application at the same time, mix by the feeding mechanism 6, then send into the mixing box 2, mix for 25-40 min, the mixing roller 4 rotates clockwise, successively roll the bentonite and the organic modifier, make the bentonite and the organic modifier combine fully, the purpose is to promote the mixing of the bentonite and the modifier by repeated rolling, at the same time, it can also avoid the formation of the water-proof film on the surface of the bentonite to affect the reaction of the internal bentonite and sodium carbonate, finally discharge from the discharge port 9 at the lower end of the mixing box 2. In the process of rolling the bentonite and the organic modifier, the bentonite attached to the mixing roller 4 will be scraped off by the scraper 7, continue to participate in the rolling and mixing, until discharge, that is, the modified bentonite is obtained.

Claims

1. A compound modified bentonite mixer characterized by: The utility model relates to a mixing mill, which comprises a rack assembly (1), a mixing box (2), a mixing cover plate (3), a mixing roller (4), a mixing motor (5) and a feeding mechanism (6).

2. The compound modified bentonite mixer according to claim 1, characterized in that: The lower surface of the mixing cover plate (3) is provided with a plurality of downward inclined scrapers (7), and the included angle β between the scraper (7) and the mixing cover plate (3) is an acute angle.

3. The compound modified bentonite mixer of claim 2, wherein: The gap distance between the scraper (7) and the mixing roller (4) is 1-3 cm.

4. The compound modified bentonite mixer of claim 1, wherein: The gap distance between the mixing roller (4) and the inner bottom plate of the mixing box (2) is 0.5-5 cm.

5. The compound modified bentonite mixer of claim 1, wherein: The inclined angle between the mixing box (2) and the horizontal plane is 15°-20°.

6. The compound modified bentonite mixer of claim 2, wherein: The number of the scrapers (7) is consistent with that of the mixing rollers (4), and the scrapers (7) are above the mixing rollers (4).

7. The compound modified bentonite mixer of claim 1, wherein: The feeding mechanism (6) is a screw feeder, and the bottom of the screw feeder is communicated with the upper end of the mixing box (2).

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