A powder making and drying device in the production process of calcium carbonate

Abstract

The invention discloses a powder making and drying device in a calcium carbonate production process, comprising a drying barrel, a stirring unit and a drying unit, wherein the drying barrel is used for fixing and installing the stirring unit and the drying unit, the stirring unit is used for stirring and conveying the calcium carbonate powder, and the drying unit is used for drying the calcium carbonate powder. When the calcium carbonate powder containing water enters the drying barrel through a feeding port, the stirring unit breaks up the calcium carbonate powder and dries it, and at the same time, the drying unit performs secondary drying treatment on the calcium carbonate powder containing water transported to a discharging port, so as to ensure that the calcium carbonate powder containing water is fully dried, and the stirring unit and the drying unit are fully contacted with the calcium carbonate powder, thereby improving the drying efficiency and drying effect of the calcium carbonate powder, and improving the production efficiency of the device.

Description

Technical Field

[0001] The invention relates to the technical field of calcium carbonate processing, in particular to a powder making and drying device in a calcium carbonate production process. Background Art

[0002] Calcium carbonate is an important inorganic compound, widely used in chemical industry, building materials, metallurgy, environmental protection and other fields. Its main component, calcite, is widely present in nature and is one of the main components of earth rocks and animal bones. With the development of industry, the quality and production efficiency of calcium carbonate products are increasingly required. Therefore, it is particularly important to develop an efficient and energy-saving powder drying device for the production process of calcium carbonate.

[0003] In the existing calcium carbonate production process, powder making and drying are two key steps. The powder making process usually uses grinding equipment to crush the raw calcium carbonate into powder of the required particle size, while the drying process is to remove moisture from the powder to prevent problems such as mildew and agglomeration during subsequent processing or storage. However, the existing drying devices for calcium carbonate production have the following shortcomings. Although some advanced drying equipment can improve the drying efficiency, the equipment structure is complex, the maintenance cost is high, and the operator's skills are required to be high. Due to the poor fluidity of the material during the drying process, it often leads to uneven drying, affecting product quality. Summary of the invention

[0004] The object of the present invention is to provide a powder making and drying device for a calcium carbonate production process to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The powder making and drying device in the calcium carbonate production process includes a drying barrel, a stirring unit and a drying unit. The drying barrel is placed on a horizontal basis. A feeding port is provided on the side of the drying barrel away from the horizontal basis. A discharging port is provided on the side of the drying barrel close to the horizontal basis. The stirring unit is rotatably installed inside the drying barrel. The stirring unit has the function of conveying and drying the calcium carbonate powder. The stirring unit is electrically connected to the drying unit. The drying unit is placed on a horizontal basis. The drying unit has the function of changing the conveying angle of the stirring unit.

[0007] The drying barrel is used for fixing and installing the stirring unit and the drying unit. The stirring unit is used for stirring and conveying the calcium carbonate powder, and the drying unit is used for drying the calcium carbonate powder. When the calcium carbonate powder containing water enters the drying barrel through the feed port, the stirring unit breaks up the calcium carbonate powder and dries it. At the same time, the drying unit performs secondary drying treatment on the calcium carbonate powder containing water transported to the discharge port to ensure that the calcium carbonate powder containing water is fully dried. The stirring unit and the drying unit are used to improve the full contact with the calcium carbonate powder, thereby improving the drying efficiency and drying effect of the calcium carbonate powder, thereby improving the production efficiency of the device.

[0008] Furthermore, the stirring unit includes a motor, an air cylinder, a stirring plate, a scraper, a straight rod, an arc block, a spring, a partition, an electromagnet and an air pump. The fixed end of the motor is fixedly mounted on the outer surface of the side end of the drying barrel parallel to the horizontal axis, the motor output shaft passes through the outer surface of the side end of the drying barrel and is fixedly connected to one end of the air cylinder, the other end of the air cylinder is rotatably mounted on the inner surface of the drying barrel, the stirring plate is evenly rotatably mounted on the outer surface of the air cylinder, the stirring plate is conductively connected to the contact end of the air cylinder, the scraper is fixedly mounted on the outer surface of the air cylinder, one end of the straight rod is parallel to the horizontal axis and is slidably connected to the scraper, and the other end is connected to a plurality of stirring plates away from the air cylinder. The ends are fixedly connected, the arc block is evenly fixedly installed on the outer surface of the air cylinder, one end of the spring is fixedly connected to the arc block, and the other end is fixedly connected to the side of the stirring plate close to the air cylinder, the partition is fixedly installed in the scraper perpendicular to the air cylinder, there are two electromagnets, namely electromagnet A and electromagnet B, the electromagnet A is fixedly connected to the end of the straight rod slidably installed at one end of the scraper, the electromagnet B is fixedly installed on the inner wall of the scraper, the two electromagnets are located on the partition, the air pump is fixedly installed at the end of the drying barrel away from the horizontal foundation, the air pump is connected to the inside of the air cylinder through a pipeline, and the electromagnet B is electrically connected to the drying unit.

[0009] When the water-containing calcium carbonate powder enters the drying barrel through the feeding port of the drying barrel, the controller controls the motor to start, thereby driving the air cylinder to rotate. The rotation of the air cylinder drives the stirring plate and the scraper to rotate. The rotation of the stirring plate evenly stirs the calcium carbonate powder, and the rotation of the scraper prevents the calcium carbonate powder from agglomerating due to moisture, which affects the drying degree and drying effect of the calcium carbonate powder. At this time, the controller controls the air pump to pass high-temperature gas into the air cylinder, and the high-temperature gas is blown out through the holes on the stirring plate, thereby drying the water-containing calcium carbonate powder. The drying unit generates intermittent current flowing to the electromagnet A, changing the current direction of the electromagnet A, thereby changing the polarity of the electromagnet A. The electromagnet A and the electromagnet B are opposite polarities at this time. Under the action of repulsion, the electromagnet A pushes the straight rod to move left and right, thereby driving the compression spring of the stirring plate to swing left and right. The stirring plate swings while rotating, which can make the calcium carbonate powder more fully mixed and flow in the drying barrel. At the same time, this swinging action increases the contact frequency and area between the calcium carbonate powder and the hot air, thereby further improving the drying uniformity and drying efficiency of the calcium carbonate powder.

[0010] Furthermore, the drying unit includes a cam, a pressing plate, a mounting box, a telescopic spring, an extrusion block, a quartz block, a moving block, a wedge block, a conductive block, a limit block, a compression spring, an oil guide pipe and a cartridge. The cam is fixedly mounted on the output shaft of the motor, the pressing plate is slidably connected to the mounting box, the mounting box is placed on a horizontal basis directly below the cam, one end of the telescopic spring is fixedly connected to the inner surface of the mounting box at one end away from the horizontal basis, and the other end is fixedly connected to the upper surface of the pressing plate at one end close to the horizontal basis, the extrusion block is vertically fixedly mounted on the lower surface of the pressing plate at one end close to the horizontal basis, and the quartz block is fixedly mounted on the mounting box close to the horizontal basis. The inner surface of one end near the horizontal foundation, the quartz block is electrically connected to the electromagnet B, the moving block is vertically fixedly installed on the lower surface of the pressing plate near the horizontal foundation, the wedge block is slidably installed in the card box, the wedge block is located on one side of the card box and is fixedly connected with a conductive plate, the wedge block is fixedly connected to the conductive block through a compression spring, the conductive block is fixedly installed on the inner surface of the card box, the limit block is fixedly installed on the inner surface of the installation box near the horizontal foundation, the card box is fixedly installed on the inner surface of the installation box near the horizontal foundation, the oil guide pipe is fixedly installed in the inner and outer cavities of the drying barrel, and the oil guide pipe is connected to the air pump pipeline.

[0011] When the motor rotates, it drives the cam to rotate. The cam periodically squeezes the pressing plate to descend. When the pressing plate descends, it stretches the telescopic spring and drives the squeezing block to periodically squeeze the quartz block, so that the quartz block generates current and transmits current to the electromagnet A, thereby changing the polarity of the electromagnet A and causing the stirring plate to swing. When the pressing plate descends, it drives the moving block to move downward. Under the action of the blocking of the limit block, the moving block squeezes the wedge block, thereby pushing the wedge block to move right inside the cartridge and squeezing the compression spring, so that the conductive plate on the wedge block contacts the conductive block to connect the circuit, so that the current of the controller passes through the wedge block and enters the electric valve through the conductive block to control the opening and closing of the valve, so that the air pump periodically conveys high-temperature airflow to the inside of the oil guide pipe, and the internal pressure of the oil guide pipe increases, thereby promoting the circulation of the high-temperature oil inside the oil guide pipe, further improving the drying efficiency of the calcium carbonate powder while keeping the oil inside the oil guide pipe at a high temperature, avoiding heat loss caused by long-term drying and heat exchange of the calcium carbonate powder, and affecting the subsequent drying effect and drying efficiency of the calcium carbonate powder.

[0012] Furthermore, an elastic film is laid at the connection between the air cylinder and the stirring plate.

[0013] In order to prevent calcium carbonate powder from entering the gas cylinder during stirring and causing blockage, thereby affecting the delivery of high-temperature gas and making it impossible to dry the calcium carbonate powder, an elastic film is laid at the connection between the gas cylinder and the stirring plate.

[0014] Furthermore, the stirring plate is a hollow structure, and a plurality of evenly spaced holes are formed on the surface of the stirring plate.

[0015] In order to realize the high-temperature gas being transported from the inside of the gas cylinder to the stirring plate and blown out from the holes on the stirring plate to dry the calcium carbonate powder, the stirring plate is used as a carrier of the heat of the high-temperature gas, and is fully stirred and contacted with the calcium carbonate powder during the rotation and swinging of the stirring plate, thereby further improving the drying efficiency of the calcium carbonate powder.

[0016] Furthermore, the initial angle between the stirring plate and the gas cylinder is 15°, and the maximum deflection angle of the stirring plate is between 0° and 20°.

[0017] The initial angle of 15° allows the calcium carbonate powder to flow and turn over to a certain extent in the initial stage of drying, ensuring that the powder does not accumulate in one place. The deflection range of 0°-20° allows the powder to constantly change position and angle during the drying process, fully exposing it to hot air, accelerating the evaporation of moisture while avoiding local overheating or overcooling, thereby achieving a more uniform drying effect.

[0018] Furthermore, an electric valve is provided inside the oil guide pipe connected to the air pump pipeline, and the conductive block is electrically connected to the electric valve.

[0019] In order to achieve that when the conductive block contacts the wedge block, the current flows through the conductive block to the electric valve, thereby opening the electric valve, so that the high-temperature gas in the air pump drives the hot oil in the oil guide pipe to circulate, thereby improving the drying efficiency of the calcium carbonate powder and keeping the oil inside the oil guide pipe at a high temperature, avoiding heat loss caused by long-term drying and heat exchange of the calcium carbonate powder, affecting the drying effect of the calcium carbonate powder.

[0020] Furthermore, the air pump is electrically connected to an external controller, and the electromagnet A is electrically connected to the external controller.

[0021] In order to realize the automatic operation of the whole device, the air pump is automatically started according to the preset procedures and conditions, so as to improve the working efficiency, reduce the manual intervention, and change the polarity of the electromagnet A at the same time, and control the swing of the stirring plate to improve the drying effect.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention rotates the stirring plate and the scraper in the stirring unit to uniformly stir the calcium carbonate powder while preventing the calcium carbonate powder from agglomerating due to moisture, which affects the drying degree and drying effect of the calcium carbonate powder; the high-temperature gas is blown out through the holes on the stirring plate, and cooperates with the electromagnet A to receive intermittent current from the drying unit, changing the polarity of the electromagnet A, driving the stirring plate to swing left and right, so that the stirring plate swings while rotating, increasing the contact frequency and area between the calcium carbonate powder and the hot air, thereby further improving the drying uniformity and drying efficiency of the calcium carbonate powder;

[0023] The present invention uses a cam in a drying unit to periodically squeeze a pressing plate, thereby driving an extrusion block to periodically squeeze a quartz block, thereby causing the quartz block to generate current, changing the polarity of the electromagnet A, causing the stirring plate to swing while the pressing plate descends, driving the moving block to move downward, pushing the wedge block to move, causing the conductive plate on the wedge block to contact the conductive block to connect the circuit, thereby causing the current of the controller to pass through the wedge block, and controlling the opening and closing of the electric valve through the conductive block, causing the air pump to periodically transport high-temperature airflow to the inside of the oil guide pipe, and circulating the high-temperature oil in the oil guide pipe, thereby further improving the drying efficiency of the calcium carbonate powder while allowing the oil in the oil guide pipe to continuously maintain a high temperature, thereby avoiding heat loss caused by long-term drying and heat exchange of the calcium carbonate powder, which affects the subsequent drying effect and drying efficiency of the calcium carbonate powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0026] Figure 2 It is a front view structural schematic diagram of the present invention;

[0027] Figure 3 It is a schematic diagram of the top view structure of the present invention;

[0028] Figure 4 The present invention Figure 3 Schematic diagram of the cross-section structure at AA;

[0029] Figure 5 The present invention Figure 4 A schematic diagram of the structure of the enlarged figure;

[0030] Figure 6 It is a schematic diagram of the internal structure of the scraper of the present invention;

[0031] Figure 7 It is a schematic diagram of the internal structure of the installation box of the present invention;

[0032] Figure 8 The present invention Figure 7 Enlarged structural diagram at C;

[0033] In the figure: 1. drying barrel; 2. stirring unit; 21. motor; 22. air cylinder; 23. stirring plate; 24. scraper; 25. straight rod; 26. arc block; 27. spring; 28. partition; 291. electromagnet A; 292. electromagnet B; 210. air pump; 3. drying unit; 31. cam; 32. pressing plate; 33. installation box; 34. telescopic spring; 35. extrusion block; 36. quartz block; 37. moving block; 38. wedge block; 39. conductive block; 310. limit block; 311. compression spring; 312. oil guide pipe; 313. card box. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention provides a technical solution:

[0036] like Figure 1 , 2As shown in Figures 3 and 4, a powder making and drying device for a calcium carbonate production process comprises a drying barrel 1, a stirring unit 2 and a drying unit 3. The drying barrel 1 is placed on a horizontal basis. A feeding port is provided on the side of the drying barrel 1 away from the horizontal basis, and a discharging port is provided on the side of the drying barrel 1 close to the horizontal basis. The stirring unit 2 is rotatably installed inside the drying barrel 1. The stirring unit 2 has the function of conveying and drying the calcium carbonate powder. The stirring unit 2 is electrically connected to the drying unit 3. The drying unit 3 is placed on a horizontal basis. The drying unit 3 has the function of changing the conveying angle of the stirring unit 2.

[0037] The drying barrel 1 is used for fixing and installing the stirring unit 2 and the drying unit 3. The stirring unit 2 is used for stirring and conveying the calcium carbonate powder, and the drying unit 3 is used for drying the calcium carbonate powder. When the calcium carbonate powder containing water enters the drying barrel 1 through the feed port, the stirring unit 2 breaks up the calcium carbonate powder and dries it. At the same time, the drying unit 3 performs secondary drying treatment on the calcium carbonate powder containing water transported to the discharge port to ensure that the calcium carbonate powder containing water is fully dried. The stirring unit 2 and the drying unit 3 are used to improve the full contact with the calcium carbonate powder, thereby improving the drying efficiency and drying effect of the calcium carbonate powder, thereby improving the production efficiency of the device.

[0038] like Figure 4 , 5 6, the stirring unit 2 includes a motor 21, an air cylinder 22, a stirring plate 23, a scraper 24, a straight rod 25, an arc block 26, a spring 27, a partition 28, an electromagnet and an air pump 210. The fixed end of the motor 21 is parallel to the horizontal axis and fixedly installed on the outer surface of the side end of the drying barrel 1. The output shaft of the motor 21 passes through the outer surface of the side end of the drying barrel 1 and is fixedly connected to one end of the air cylinder 22. The other end of the air cylinder 22 is rotatably installed on the inner surface of the drying barrel 1. The stirring plate 23 is evenly rotatably installed on the outer surface of the air cylinder 22. The stirring plate 23 is conductively connected to the contact end of the air cylinder 22. The scraper 24 is fixedly installed on the outer surface of the air cylinder 22. One end of the straight rod 25 is parallel to the horizontal axis and is slidably connected to the scraper 24, and the other end is connected to multiple stirring plates 23 away from the air cylinder 2 2 is fixedly connected at one end, the arc block 26 is evenly fixedly installed on the outer surface of the air cylinder 22, one end of the spring 27 is fixedly connected to the arc block 26, and the other end is fixedly connected to the side of the stirring plate 23 close to the air cylinder 22, the partition 28 is fixedly installed in the scraper 24 perpendicular to the air cylinder 22, there are two electromagnets, namely electromagnet A291 and electromagnet B292, the electromagnet A291 is fixedly connected to the end of the straight rod 25 slidably installed at one end of the scraper 24, the electromagnet B292 is fixedly installed on the inner wall of the scraper 24, and the two electromagnets are located on the partition 28, the air pump 210 is fixedly installed at the end of the drying barrel 1 away from the horizontal foundation, the air pump 210 is connected to the inside of the air cylinder 22 through a pipeline, and the electromagnet B292 is electrically connected to the drying unit 3.

[0039] When the water-containing calcium carbonate powder enters the drying barrel 1 through the feed port of the drying barrel 1, the controller controls the motor 21 to start, thereby driving the air cylinder 22 to rotate. The rotation of the air cylinder 22 drives the stirring plate 23 and the scraper 24 to rotate. The rotation of the stirring plate 23 evenly stirs the calcium carbonate powder, and the rotation of the scraper 24 prevents the calcium carbonate powder from agglomerating due to moisture, which affects the drying degree and drying effect of the calcium carbonate powder. At this time, the controller controls the air pump 210 to pass high-temperature gas into the air cylinder 22, and the high-temperature gas is blown out through the holes on the stirring plate 23, thereby drying the water-containing calcium carbonate powder, and the drying unit 3 generates The intermittent current flows to the electromagnet A291, changing the current direction of the electromagnet A291, thereby changing the polarity of the electromagnet A291. The electromagnet A291 and the electromagnet B292 are of opposite polarity at this time. Under the action of repulsive force, the electromagnet A291 pushes the straight rod 25 to move left and right, thereby driving the compression spring 27 of the stirring plate 23 to swing left and right. The stirring plate 23 swings while rotating, which can make the calcium carbonate powder more fully mixed and flow in the drying barrel 1. At the same time, this swinging action increases the contact frequency and area between the calcium carbonate powder and the hot air, thereby further improving the drying uniformity and drying efficiency of the calcium carbonate powder.

[0040] like Figure 1 , 7 As shown in Figure 8, the drying unit 3 includes a cam 31, a pressing plate 32, a mounting box 33, a telescopic spring 34, an extrusion block 35, a quartz block 36, a moving block 37, a wedge block 38, a conductive block 39, a limit block 310, a compression spring 311, an oil guide pipe 312 and a cartridge 313. The cam 31 is fixedly mounted on the output shaft of the motor 21. The pressing plate 32 is slidably connected to the mounting box 33. The mounting box 33 is placed on a horizontal foundation directly below the cam 31. One end of the telescopic spring 34 is fixedly connected to the inner surface of the mounting box 33 away from the horizontal foundation, and the other end is fixedly connected to the upper surface of the pressing plate 32 close to the horizontal foundation. The extrusion block 35 is vertically fixedly mounted on the lower surface of the pressing plate 32 close to the horizontal foundation. The quartz block 36 is fixedly mounted on The installation box 33 is on the inner surface of one end close to the horizontal foundation, the quartz block 36 is electrically connected to the electromagnet B292, the moving block 37 is vertically fixedly installed on the lower surface of the pressing plate 32 close to the horizontal foundation, the wedge block 38 is slidably installed in the card box 313, the wedge block 38 is located on one side of the card box 313 and is fixedly connected with a conductive plate, the wedge block 38 is fixedly connected to the conductive block 39 through a compression spring 311, the conductive block 39 is fixedly installed on the inner surface of the card box 313, the limit block 310 is fixedly installed on the inner surface of the installation box 33 close to the horizontal foundation, the card box 313 is fixedly installed on the inner surface of the installation box 33 close to the horizontal foundation, the oil guide pipe 312 is fixedly installed in the inner and outer cavities of the drying barrel 1, and the oil guide pipe 312 is connected to the air pump 210 pipeline.

[0041] The motor 21 rotates and drives the cam 31 to rotate. The cam 31 periodically squeezes the pressing plate 32 to descend. When the pressing plate 32 descends, the telescopic spring 34 is stretched and the squeezing block 35 is driven to periodically squeeze the quartz block 36, so that the quartz block 36 generates current and transmits current to the electromagnet A291, thereby changing the polarity of the electromagnet A291 and causing the stirring plate 23 to swing. When the pressing plate 32 descends, the moving block 37 is driven to move downward. Under the action of the blocking of the limit block 310, the moving block 37 squeezes the wedge block 38, thereby pushing the wedge block 38 to move rightward inside the cartridge 313 and squeezing the compression spring 34. The spring 311 makes the conductive plate on the wedge block 38 contact the conductive block 39 to connect the circuit, so that the current of the controller passes through the wedge block 38 and enters the electric valve through the conductive block 39 to control the opening and closing of the valve, so that the air pump 210 periodically transports the high-temperature airflow to the inside of the oil guide pipe 312, and the internal pressure of the oil guide pipe 312 increases, thereby promoting the circulation of the high-temperature oil in the oil guide pipe 312, further improving the drying efficiency of the calcium carbonate powder, and keeping the oil in the oil guide pipe 312 at a high temperature, avoiding heat loss caused by long-term drying and heat exchange of the calcium carbonate powder, which affects the subsequent drying effect and drying efficiency of the calcium carbonate powder.

[0042] like Figure 4 As shown, an elastic film is laid at the connection between the air cylinder 22 and the stirring plate 23.

[0043] In order to prevent the calcium carbonate powder from entering the gas cylinder 22 during the stirring process and causing blockage, thereby affecting the delivery of high-temperature gas and making it impossible to dry the calcium carbonate powder, an elastic film is laid at the connection between the gas cylinder 22 and the stirring plate 23.

[0044] like Figure 4 As shown, the stirring plate 23 is a hollow structure, and a plurality of evenly spaced holes are formed on the surface of the stirring plate 23 .

[0045] In order to realize that high-temperature gas is transported from the inside of the gas cylinder 22 to the stirring plate 23 and blown out from the holes on the stirring plate 23 to dry the calcium carbonate powder, and at the same time, the stirring plate 23 is used as a carrier of the heat of the high-temperature gas, and is fully stirred and contacted with the calcium carbonate powder during the rotation and swinging of the stirring plate 23, so as to further improve the drying efficiency of the calcium carbonate powder.

[0046] like Figure 4 As shown, the initial angle between the stirring plate 23 and the gas cylinder 22 is 15°, and the maximum deflection angle of the stirring plate 23 is between 0° and 25°.

[0047] The initial angle of 15° allows the calcium carbonate powder to flow and turn over to a certain extent in the initial stage of drying, ensuring that the powder does not accumulate in one place. The deflection range of 0°-20° allows the powder to constantly change position and angle during the drying process, fully exposing it to hot air, accelerating the evaporation of moisture while avoiding local overheating or overcooling, thereby achieving a more uniform drying effect.

[0048] like Figure 4 As shown, the oil guide pipe 312 is connected to the air pump 210 pipeline, an electric valve is arranged inside, and the conductive block 39 is electrically connected to the electric valve.

[0049] In order to achieve that when the conductive block 39 contacts the wedge block 38, the current flows through the conductive block 39 to the electric valve, thereby opening the electric valve, so that the high-temperature gas in the air pump 210 drives the hot oil in the oil guide pipe 312 to circulate, thereby improving the drying efficiency of the calcium carbonate powder and keeping the oil inside the oil guide pipe 312 at a high temperature, avoiding heat loss caused by long-term drying and heat exchange of the calcium carbonate powder, which affects the drying effect of the calcium carbonate powder.

[0050] like Figure 4 As shown, the air pump 210 is electrically connected to the external controller, and the electromagnet A291 is electrically connected to the external controller.

[0051] In order to realize the automatic operation of the whole device, the air pump 210 is automatically started according to the preset program and conditions to improve the working efficiency, reduce the manual intervention and change the polarity of the electromagnet A291 at the same time, and control the swing of the stirring plate 23 to improve the drying effect.

[0052] Working principle of the present invention:

[0053] When the water-containing calcium carbonate powder enters the drying barrel 1 through the feeding port of the drying barrel 1, the controller controls the motor 21 to start, thereby driving the air cylinder 22 to rotate. The rotation of the air cylinder 22 drives the stirring plate 23 and the scraper 24 to rotate. The rotation of the stirring plate 23 evenly stirs the calcium carbonate powder, and the rotation of the scraper 24 prevents the calcium carbonate powder from agglomerating due to moisture, which affects the drying degree and drying effect of the calcium carbonate powder. At this time, the controller controls the air pump 210 to pass high-temperature gas into the air cylinder 22, and the high-temperature gas is blown out through the holes on the stirring plate 23, thereby drying the water-containing calcium carbonate powder. The rotation of the motor 21 drives the cam 31 to rotate at the same time. The cam 31 periodically squeezes the pressing plate 32 to descend, and the pressing plate 32 moves downward. When it drops, the telescopic spring 34 will be stretched and the extrusion block 35 will be driven to periodically extrude the quartz block 36, so that the quartz block 36 will generate current to the electromagnet A291, changing the current direction of the electromagnet A291, thereby changing the polarity of the electromagnet A291. The electromagnet A291 and the electromagnet B292 are of opposite polarity at this time. Under the action of repulsive force, the electromagnet A291 pushes the straight rod 25 to move left and right, thereby driving the compression spring 27 of the stirring plate 23 to swing left and right. The stirring plate 23 swings while rotating, which can make the calcium carbonate powder more fully mixed and flow in the drying barrel 1. At the same time, this swinging action increases the contact frequency and area of ​​the calcium carbonate powder with the hot air, thereby further improving the drying uniformity and drying efficiency of the calcium carbonate powder.

[0054] At the same time, the pressing plate 32 will move downward while the pressing plate 32 is descending, and the moving block 37 will be driven to move downward. Under the blocking effect of the limit block 310, the moving block 37 will squeeze the wedge block 38, thereby pushing the wedge block 38 to move rightward inside the card box 313 and squeezing the compression spring 311, so that the conductive plate on the wedge block 38 is in contact with the conductive block 39 to connect the circuit, so that the current of the controller passes through the wedge block 38 and enters the electric valve through the conductive block 39 to control the opening and closing of the valve, so that the air pump 210 periodically transports high-temperature airflow to the inside of the oil guide pipe 312, and the internal pressure of the oil guide pipe 312 increases, thereby promoting the circulation of the high-temperature oil inside the oil guide pipe 312, further improving the drying efficiency of the calcium carbonate powder while keeping the oil inside the oil guide pipe 312 at a high temperature, avoiding heat loss caused by long-term drying and heat exchange of the calcium carbonate powder, and affecting the subsequent drying effect and drying efficiency of the calcium carbonate powder.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A powder making and drying device for calcium carbonate production process, characterized in that: A powder making and drying device for a calcium carbonate production process comprises a drying barrel (1), a stirring unit (2) and a drying unit (3); the drying barrel (1) is placed on a horizontal foundation; a feeding port is provided on a side of the drying barrel (1) away from the horizontal foundation; a discharging port is provided on a side of the drying barrel (1) close to the horizontal foundation; the stirring unit (2) is rotatably mounted inside the drying barrel (1); and the stirring unit (2) is electrically connected to the drying unit (3); The stirring unit (2) comprises a motor (21), an air cylinder (22), a stirring plate (23), a scraper (24), a straight rod (25), an arc block (26), a spring (27), a partition (28), an electromagnet and an air pump (210). The fixed end of the motor (21) is fixedly mounted on the outer surface of the side end of the drying barrel (1) parallel to the horizontal axis, the output shaft of the motor (21) passes through the outer surface of the side end of the drying barrel (1) and is fixedly connected to one end of the air cylinder (22), the other end of the air cylinder (22) is rotatably mounted on the inner surface of the drying barrel (1), the stirring plate (23) is evenly rotatably mounted on the outer surface of the air cylinder (22), the stirring plate (23) is conductively connected to the contact end of the air cylinder (22), the scraper (24) is fixedly mounted on the outer surface of the air cylinder (22), one end of the straight rod (25) is parallel to the horizontal axis and is slidably connected to the scraper (24), and the other end is connected to the plurality of stirring plates (23) away from the air cylinder (22). ) is fixedly connected at one end, the arc block (26) is evenly fixedly mounted on the outer surface of the air cylinder (22), one end of the spring (27) is fixedly connected to the arc block (26), and the other end is fixedly connected to the side of the stirring plate (23) close to the air cylinder (22), the partition (28) is fixedly mounted in the scraper (24) perpendicular to the air cylinder (22), there are two electromagnets, namely electromagnet A (291) and electromagnet B (292), the electromagnet A (291) is fixedly connected to the end of a straight rod (25) slidably mounted on one end of the scraper (24), the electromagnet B (292) is fixedly mounted on the inner wall of the scraper (24), and the two electromagnets are located on the partition (28), the air pump (210) is fixedly mounted at one end of the drying barrel (1) away from the horizontal foundation, the air pump (210) is connected to the inside of the air cylinder (22) through a pipeline, and the electromagnet B (292) is electrically connected to the drying unit (3).

2. A powder making and drying device for calcium carbonate production process according to claim 1, characterized in that: The drying unit (3) is placed on a horizontal foundation. The drying unit (3) comprises a cam (31), a pressing plate (32), a mounting box (33), a telescopic spring (34), an extrusion block (35), a quartz block (36), a moving block (37), a wedge block (38), a conductive block (39), a limit block (310), a compression spring (311), an oil guide pipe (312) and a cartridge (313). The cam (31) is fixedly mounted on an output shaft of the motor (21). The pressing plate (32) is slidably connected to the mounting box (33). The mounting box (33) is placed on a horizontal foundation directly below the cam (31). One end of the telescopic spring (34) is fixedly connected to an inner surface of an end of the mounting box (33) away from the horizontal foundation, and the other end is fixedly connected to an upper surface of an end of the pressing plate (32) close to the horizontal foundation. The extrusion block (35) is vertically fixedly mounted on a lower surface of an end of the pressing plate (32) close to the horizontal foundation. The quartz block ( The quartz block (36) is fixedly mounted on the inner surface of one end of the installation box (33) close to the horizontal foundation, the quartz block (36) is electrically connected to the electromagnet B (292), the moving block (37) is vertically fixedly mounted on the lower surface of one end of the pressing plate (32) close to the horizontal foundation, the wedge block (38) is slidably mounted in the card box (313), the wedge block (38) is located on one side of the card box (313) and is fixedly connected to a conductive plate, the wedge block (38) is fixedly connected to the conductive block (39) through a compression spring (311), the conductive block (39) is fixedly mounted on the inner surface of the card box (313), the limit block (310) is fixedly mounted on the inner surface of one end of the installation box (33) close to the horizontal foundation, the card box (313) is fixedly mounted on the inner surface of one end of the installation box (33) close to the horizontal foundation, the oil guide pipe (312) is fixedly mounted in the inner and outer cavities of the drying barrel (1), and the oil guide pipe (312) is connected to the air pump (210) pipeline.

3. A powder making and drying device for calcium carbonate production process according to claim 1, characterized in that: An elastic film is laid at the connection between the air cylinder (22) and the stirring plate (23).

4. A powder making and drying device for calcium carbonate production process according to claim 1, characterized in that: The stirring plate (23) is a hollow structure, and a plurality of evenly spaced holes are formed on the surface of the stirring plate (23).

5. A powder making and drying device for calcium carbonate production process according to claim 1, characterized in that: The initial angle between the stirring plate (23) and the gas cylinder (22) is 15°, and the maximum deflection angle of the stirring plate (23) is between 0° and 25°.

6. A powder making and drying device for calcium carbonate production process according to claim 2, characterized in that: The oil guide pipe (312) is connected to the air pump (210) pipeline, and an electric valve is arranged inside the oil guide pipe. The conductive block (39) is electrically connected to the electric valve.

7. A powder making and drying device for calcium carbonate production process according to claim 1, characterized in that: The air pump (210) is electrically connected to an external controller, and the electromagnet A (291) is electrically connected to the external controller.

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