Stirring device for calcium carbonate powder production

Abstract

The utility model relates to a stirring device for producing calcium carbonate powder, which is characterized in that a heating wire (11) is arranged in a rotary drum (10), a plurality of plate bodies (21) are arranged in the rotary drum (10) at intervals along the circumferential direction of the rotary drum (10), and an included angle can be formed between the length direction of the plate bodies (21) and the radial direction of the rotary drum (10); the multiple nozzles (23) located in the center of the rotary drum (10) spray a surfactant downwards to calcium carbonate powder, the rotary drum (10) and the multiple plate bodies (21) rotate synchronously so that the calcium carbonate powder sprayed with the surfactant in the rotary drum (10) can be stirred in a turning mode, and the calcium carbonate powder is lifted by one plate body (21) and falls onto the other plate body (21) and the inner wall of the rotary drum (10). The heating wire (11) in the rotary drum (10) is used for heating and drying, so that the stirring range is large, the mixing efficiency is high, and the mixing effect of the calcium carbonate powder and the surfactant and the drying effect after mixing are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbonate powder production, in particular to a calcium carbonate powder production stirring device. Background Art

[0002] Calcium carbonate is an inorganic compound found in rocks such as aragonite, calcite, chalk, limestone, marble, and travertine. It is also a major component of the bones and shells of some animals. Calcium carbonate is widely used in modern industrial production, and practical applications require it to be processed into a powder. Calcium carbonate powders tend to clump and have poor dispersibility. In the prior art, surfactants or surface modifiers are often mixed with calcium carbonate powder in a blender to perform surface modification to improve the powder's dispersibility or other surface properties.

[0003] A Chinese utility model patent, granted with publication number CN219400173U, discloses a surface modification device for ultrafine calcium carbonate powder. Spiral blades within a tank rotate to mix and stir the calcium carbonate powder, while a surfactant is sprayed through an atomizing nozzle. A hot air blower dries the interior of the tank to modify the calcium carbonate powder. However, in actual use, this solution suffers from a limited stirring range within the spiral blades, resulting in low mixing efficiency, which affects both the mixing of the calcium carbonate powder and the surfactant, as well as the drying effect after mixing. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in actual use, the existing calcium carbonate powder surface modification device has a limited stirring range of the spiral blade and low mixing efficiency, which affects the mixing effect of the calcium carbonate powder and the surfactant and the drying effect after mixing.

[0005] In order to solve the above problems, the utility model provides a calcium carbonate powder production stirring device, wherein a heating wire is provided in a rotating drum, and a plurality of plates are provided at intervals along the circumference of the rotating drum, and the length direction of the plates can form an angle with the radial direction of the rotating drum; a tube body is coaxially penetrated through the rotating drum, and the rotating drum can rotate relative to the tube body, and a plurality of nozzles connected to the interior of the tube body are provided on the lower side of the tube body for spraying surfactants, and two baffles for shielding the nozzles are provided opposite to each other on the tube body.

[0006] The calcium carbonate powder production stirring device provided by the utility model also has the following technical features:

[0007] A plurality of protrusions are provided on both sides of the plate body and the inner wall of the rotating drum.

[0008] A rotating rod is provided at the edge of the plate body, one end of the rotating rod is rotatably connected to the rotating drum, and the other end passes through the rotating drum and is connected to a worm gear. An adjusting motor is provided on the rotating drum, and an output end of the adjusting motor is connected to a worm gear, and the worm gear is meshed with the worm gear.

[0009] A material opening is provided on the side wall of the rotating drum.

[0010] A base plate is provided under the rotating drum, and a support rod is provided on the base plate. A swivel is integrally formed at both ends of the rotating drum, and the support rod is rotatably connected to the swivel. Both ends of the tube body are passed through the swivel and connected to the base plate through a fixed rod. One end of the tube body is sealed, and the other end is connected to an external pipeline for providing a surfactant.

[0011] A driving motor is provided on the bottom plate, an output end of the driving motor is connected to a gear, and a gear ring is provided on the outside of the rotating drum and meshes with the gear.

[0012] The utility model has the following beneficial effects: a plurality of nozzles located at the center of the rotating drum spray the surfactant downward onto the calcium carbonate powder, and the baffle can prevent the nozzle from being blocked; the rotating drum and the plurality of plates rotate synchronously to perform tumbling stirring on the calcium carbonate powder sprayed with the surfactant in the rotating drum, the calcium carbonate powder is lifted by one plate and falls onto another plate and the inner wall of the rotating drum, and is heated and dried by the heating wire in the rotating drum, the stirring range is large, the mixing efficiency is high, and the mixing effect of the calcium carbonate powder and the surfactant and the drying effect after mixing are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main view of the utility model;

[0014] Figure 2 for Figure 1 a cross-sectional view of the rotating drum;

[0015] Figure 3 This is an internal view of the drum;

[0016] Figure 4 Schematic diagram of the driving structure of the plate. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0018] like Figures 1 to 4 As shown, the calcium carbonate powder production stirring device of the present invention has a heating wire 11 provided in the rotating drum 10, and a plurality of plates 21 are provided at intervals along the circumference of the rotating drum 10, and the length direction of the plate 21 can form an angle with the radial direction of the rotating drum 10; a tube 22 is coaxially penetrated through the rotating drum 10, and the rotating drum 10 can rotate relative to the tube 22, and a plurality of nozzles 23 connected to the interior of the tube 22 are provided on the lower side of the tube 22 for spraying surfactants, and two baffles 24 for shielding the nozzles 23 are provided on the tube 22.

[0019] Multiple nozzles 23 located at the center of the drum 10 spray the surfactant downward onto the calcium carbonate powder, and the baffle 24 can prevent the nozzle 23 from being blocked; the drum 10 and the multiple plates 21 rotate synchronously to stir the calcium carbonate powder sprayed with the surfactant in the drum 10 in a tumbling manner. The calcium carbonate powder is lifted by one plate 21 and falls onto the other plate 21 and the inner wall of the drum 10, and is heated and dried by the heating wire 11 in the drum 10. The stirring range is large and the mixing efficiency is high, thereby improving the mixing effect of the calcium carbonate powder and the surfactant and the drying effect after mixing.

[0020] Among them, the heating wire 11 is arranged in the side wall of the rotating drum 10, and is equipped with a corresponding power supply, a control module for controlling the start and stop, a thermostat for adjusting the heating temperature, and a safety protection device for preventing overheating, abnormal current and other faults. The outside of the heating wire 11 is coated with an insulating layer to avoid leakage. The inside of the rotating drum 10 can be set to a heat-conducting material to receive and transfer the heat generated by the heating wire 11 to heat and dry the calcium carbonate powder inside. The structure and principle of drying by the heating wire 11 are prior art and will not be elaborated here. Of course, a fan can also be set on one side of the rotating drum 10 and an air outlet can be set on the other side to speed up the internal air circulation and improve the drying efficiency.

[0021] Preferably, a plurality of protrusions 25 are provided on both sides of the plate 21 and the inner wall of the drum 10 .

[0022] The protrusions 25 on one side of the plate body 21 can facilitate the lifting of the calcium carbonate powder to a certain height, and then the calcium carbonate powder falls to the other side of the plate body 21, the inner wall of the rotating drum 10 and the corresponding protrusions 25, so that the calcium carbonate powder is further mixed, further improving the mixing effect and mixing efficiency.

[0023] Preferably, a rotating rod 26 is provided at the edge of the plate body 21, one end of the rotating rod 26 is rotatably connected to the rotating drum 10, and the other end passes through the rotating drum 10 and is connected to a worm gear 27. An adjusting motor 28 is provided on the rotating drum 10, and the output end of the adjusting motor 28 is connected to a worm 29, which is engaged with the worm gear 27 accordingly.

[0024] By adjusting the output end of the motor 28 to drive the worm 29 to rotate, the worm wheel 27 and the rotating rod 26 are driven to rotate to adjust the orientation angle of the corresponding plate 21, change the height to which the calcium carbonate powder is lifted and the position to which it falls, thereby cooperating with the rotating drum 10 to change the working conditions for stirring and mixing the calcium carbonate powder in the rotating drum 10, and having strong adaptability.

[0025] Preferably, a material port 12 is provided on the side wall of the rotating drum 10 .

[0026] The feed port 12 is covered with a cover plate (not shown). The drum 10 is rotated so that the feed port 12 faces upward. At this time, the feed port 12 can be used to put in the calcium carbonate powder to be processed. The feed port 12 faces downward. At this time, the feed port 12 can be used to take out the processed calcium carbonate powder.

[0027] Preferably, a bottom plate 13 is provided under the rotating drum 10, and a support rod 14 is provided on the bottom plate 13. A swivel 15 is integrally formed at both ends of the rotating drum 10, and the support rod 14 is rotatably connected to the swivel 15. Both ends of the tube body 22 are passed through the swivel 15 and connected to the bottom plate 13 through a fixing rod 16. One end of the tube body 22 is sealed, and the other end is connected to an external pipeline 17 for providing a surfactant.

[0028] The tube body 22 is made of a hard metal such as stainless steel or aluminum alloy to prevent rust and maintain support stability. The other end of the tube body 22 can be connected to the external pipeline 17 via threads, a sealing ring, or a flange and a sealing ring. The external pipeline 17 is connected to a storage tank for storing surfactants and is equipped with a control valve.

[0029] Preferably, a driving motor 18 is provided on the bottom plate 13 , an output end of the driving motor 18 is connected to a gear 19 , and a gear ring 20 meshing with the gear 19 is provided on the outside of the rotating drum 10 .

[0030] The regulating motor 28 and the driving motor 18 are equipped with corresponding power supplies and control modules to control the corresponding start and stop. The driving motor 18 can also be equipped with a speed regulator to control the rotation speed of the drum 10.

[0031] The working principle of this utility model is as follows:

[0032] The drum 10 is rotated so that the material port 12 faces upward, and the calcium carbonate powder to be processed at the material port 12 is put into the drum 10. Multiple nozzles 23 located in the center of the drum 10 spray the surfactant downward onto the calcium carbonate powder, and the baffle 24 can prevent the nozzle 23 from being blocked; at the same time, the output end of the drive motor 18 drives the gear 19 to rotate, driving the ring gear 20, the drum 10, and multiple plates 21 to rotate synchronously, so as to stir the calcium carbonate powder sprayed with the surfactant in the drum 10 in a tumbling manner. The calcium carbonate powder is lifted by one plate 21 and falls onto the other plate 21 and the inner wall of the drum 10 and the corresponding protrusions 25, and is heated and dried by the heating wire 11 in the drum 10. The stirring range is large and the mixing efficiency is high, thereby improving the mixing effect of the calcium carbonate powder and the surfactant and the drying effect after mixing.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A stirring device for producing calcium carbonate powder, characterized in that: A heating wire (11) is provided in the rotating drum (10), and a plurality of plates (21) are provided in the rotating drum (10) at intervals along its circumference, wherein the length direction of the plates (21) can form an angle with the radial direction of the rotating drum (10); a tube (22) is coaxially passed through the rotating drum (10), and the rotating drum (10) can rotate relative to the tube (22); a plurality of nozzles (23) are provided on the lower side of the tube (22) and are communicated with the interior thereof for spraying a surfactant, and two baffles (24) are provided on the tube (22) for shielding the nozzles (23) in opposite directions.

2. The calcium carbonate powder production stirring device according to claim 1, characterized in that A plurality of protrusions (25) are provided on both sides of the plate body (21) and on the inner wall of the rotating drum (10).

3. The calcium carbonate powder production stirring device according to claim 1, characterized in that A rotating rod (26) is provided at the edge of the plate body (21), one end of the rotating rod (26) is rotatably connected to the rotating drum (10), and the other end passes through the rotating drum (10) and is connected to a worm gear (27). An adjusting motor (28) is provided on the rotating drum (10), and an output end of the adjusting motor (28) is connected to a worm gear (29), and the worm gear (29) is meshed with the worm gear (27).

4. The calcium carbonate powder production stirring device according to claim 1, characterized in that: A material opening (12) is provided on the side wall of the rotating drum (10).

5. The calcium carbonate powder production stirring device according to claim 1, characterized in that: A bottom plate (13) is provided below the rotating drum (10), a support rod (14) is provided on the bottom plate (13), a rotating ring (15) is integrally formed at both ends of the rotating drum (10), the support rod (14) is rotatably connected to the rotating ring (15), both ends of the tube body (22) are passed through the rotating ring (15) and connected to the bottom plate (13) via a fixing rod (16), one end of the tube body (22) is sealed, and the other end is connected to an external pipeline (17) for providing a surfactant.

6. The calcium carbonate powder production stirring device according to claim 5, characterized in that: A driving motor (18) is provided on the bottom plate (13), an output end of the driving motor (18) is connected to a gear (19), and a gear ring (20) is provided on the outside of the rotating drum (10) and meshes with the gear (19).

Images