A drying device for calcium carbonate powder

Abstract

The utility model discloses a kind of drying device for calcium carbonate powder, it is related to calcium carbonate powder production field, to solve the problem that the rolling cylinder is closed state in the drying device in prior art, resulting in the internal humidity of rolling cylinder to calcium carbonate powder drying cannot be discharged, influence drying efficiency.The drying box is rotatably connected with drying cylinder inside, the upper end middle part of drying cylinder is fixedly provided with support net, the lower end surface of support net is fixedly connected with moisture-absorbing cloth, the lower end surface middle part of drying cylinder is provided with powder outlet, the lower end surface of drying cylinder is rotatably connected with arc sealing plate in the lower end of powder outlet, the inside of drying cylinder is provided with multiple grinding balls, the inside of drying box and the front and rear ends of the upper end of drying cylinder are all fixedly connected with multiple heating lamp tubes, by the structural design of setting support net and moisture-absorbing cloth on the upper end of drying cylinder, water vapor generated in drying process can be effectively absorbed and discharged, solve the problem that humidity of traditional closed type rolling cylinder cannot be discharged.

Description

Technical Field

[0001] This utility model relates to the field of calcium carbonate powder production, specifically to a drying device for calcium carbonate powder. Background Technology

[0002] Calcium carbonate powder is a white, fine powder made from natural calcium carbonate ore (such as calcite, marble, and limestone) through processes such as crushing, grinding, and grading. Its main component is CaCO3, and it is non-toxic, odorless, and chemically stable. Based on particle size, it can be divided into two categories: heavy calcium carbonate (obtained by grinding) and light calcium carbonate (obtained by chemical precipitation). This material is widely used in industries such as plastics, rubber, coatings, and papermaking as a filler or modifier to reduce costs, improve product mechanical properties, or whiteness. Calcium carbonate powder requires drying during production using a drying device.

[0003] For example, patent announcement number CN221781203U discloses a drying device for calcium carbonate powder, including a drying box. The drying box contains a rotating drum inside, with a rotating shaft on the side of the drum. A heating plate is embedded at the bottom of the drying box, and a heat-conducting plate is attached to the top of the heating plate. A placement plate is fixedly connected to the side of the drying box, and a limiting groove is fixedly connected to the surface of the placement plate. An electrical box is embedded inside the limiting groove. This drying device for calcium carbonate powder, by installing a rotating drum inside the drying box and installing a heating plate and a heat-conducting plate at the bottom of the drying box, allows the bottom of the rotating drum to contact the heat-conducting plate. The heating plate generates heat through the electrical box on the side of the drying box. When the rotating drum starts to rotate, the calcium carbonate powder inside the drum begins to rotate under the drive of the rotating drum. The continuous tumbling of the calcium carbonate allows for faster, better, and more uniform drying.

[0004] However, in the above-mentioned technology, the rotating drum in the drying device is in a closed state, which means that the internal moisture cannot be discharged when the rotating drum dries the calcium carbonate powder, affecting the drying efficiency. At the same time, the calcium carbonate powder is prone to clumping during drying, which affects its subsequent use. Therefore, the market urgently needs to develop a drying device for calcium carbonate powder to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a drying device for calcium carbonate powder, so as to solve the problems mentioned in the background art. In the prior art, the rotating drum in the drying device is in a closed state, which makes it impossible to discharge the internal moisture when the rotating drum dries the calcium carbonate powder, thus affecting the drying efficiency. At the same time, the calcium carbonate powder is prone to agglomeration during drying, which affects subsequent use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying device for calcium carbonate powder, comprising a drying box, a drying cylinder rotatably connected inside the drying box, a support net fixedly installed at the middle of the upper end of the drying cylinder, a moisture-absorbing cloth fixedly connected to the lower end face of the support net, a powder outlet provided at the middle of the lower end face of the drying cylinder, an arc-shaped sealing plate rotatably connected to the lower end face of the drying cylinder and below the powder outlet, a plurality of grinding balls provided inside the drying cylinder, and a plurality of heating lamps fixedly connected to both the front and rear ends of the upper end of the drying cylinder inside the drying box.

[0007] Preferably, the front end of the drying box is provided with a feeding port, the lower end of the drying box is provided with a guide channel, and the middle of the lower end of the drying box is provided with a discharge port between the guide channel and the guide channel.

[0008] Preferably, a beveled baffle net is fixedly connected inside the drying chamber between the upper end of the guide channel and the lower end of the drying cylinder, and a vibration device is fixedly connected to the middle of the lower end of the beveled baffle net.

[0009] Preferably, an arc-shaped connecting plate is fixedly connected to the middle of the front end of the arc-shaped sealing plate, and the arc-shaped connecting plate is fixedly connected to the outer wall of the drying cylinder by bolts.

[0010] Preferably, limiting tubes are fixedly connected to the middle of both end faces of the drying box, and rotating shafts are fixedly connected to the middle of both sides of the drying cylinder, with the two rotating shafts respectively inserted into the two limiting tubes.

[0011] Preferably, a drive box is fixedly connected to one end face of the drying box, a drive motor is fixedly installed inside the drive box, and a worm gear is connected to the output shaft of the drive motor through a coupling.

[0012] Preferably, one end of the rotating shaft on one side of the drying cylinder extends through the limiting tube into the drive box and is fixedly connected to a worm gear, which meshes with the teeth of the worm.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting a support net and a moisture-absorbing cloth at the upper end of the drying drum, the water vapor generated during the drying process can be effectively absorbed and discharged, which significantly improves the drying efficiency and solves the problem that the humidity of the traditional closed drum cannot be discharged.

[0015] (2) In this utility model, by setting multiple grinding balls inside the drying cylinder, the calcium carbonate powder is continuously collided and ground during the drying process, which effectively prevents the powder from clumping and ensures the looseness and performance of the powder after drying.

[0016] (3) In this utility model, the automatic separation of powder and grinding balls after drying is achieved through the combined design of the angled barrier net and the vibration device, which simplifies the operation process, improves production efficiency, and facilitates the recycling and reuse of grinding balls. Attached Figure Description

[0017] Figure 1 This is a front view of a drying device for calcium carbonate powder according to the present invention.

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the present invention;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Drying box; 101. Guide channel; 102. Discharge port; 103. Feed port; 104. Heating lamp; 105. Angled barrier net; 106. Vibration device; 107. Limiting tube; 2. Drying cylinder; 201. Support net; 202. Moisture-absorbing cloth; 203. Powder outlet; 204. Grinding ball; 205. Rotating shaft; 206. Worm gear; 3. Arc-shaped sealing plate; 301. Arc-shaped connecting plate; 302. Bolt; 4. Drive box; 401. Drive motor; 402. Worm gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a drying device for calcium carbonate powder, comprising a drying chamber 1, a feeding port 103 at the front end of the drying chamber 1, a drying cylinder 2 rotatably connected inside the drying chamber 1, a support net 201 fixedly installed at the middle of the upper end of the drying cylinder 2, a moisture-absorbing cloth 202 fixedly connected to the lower end of the support net 201, a powder outlet 203 at the middle of the lower end of the drying cylinder 2, an arc-shaped sealing plate 3 rotatably connected to the lower end of the drying cylinder 2 and below the powder outlet 203, a plurality of grinding balls 204 installed inside the drying cylinder 2, and grinding balls 204 fixedly connected to both the front and rear ends of the upper end of the drying cylinder 2 inside the drying chamber 1. Multiple heating lamps 104 rotate the drying cylinder 2, causing the powder outlet 203 to rotate to the front end and opening the arc-shaped sealing plate 3. The calcium carbonate powder to be dried is added into the drying cylinder 2 through the feeding port 103 and the powder outlet 203, and the arc-shaped sealing plate 3 is closed again. The multiple heating lamps 104 heat the drying cylinder 2 and work together with the rotation of the drying cylinder 2 to dry the calcium carbonate powder. The moisture-absorbing cloth 202 absorbs the water vapor generated inside the drying cylinder 2 and discharges it to the outside through the support net 201. The grinding balls 204 roll inside the drying cylinder 2 to disperse the calcium carbonate powder and prevent the calcium carbonate powder from clumping during drying.

[0024] Please see Figure 2 and Figure 3 A guide channel 101 is provided at the lower end of the drying chamber 1. A discharge port 102 is provided between the middle of the lower end of the drying chamber 1 and the guide channel 101. An angled baffle net 105 is fixedly connected inside the drying chamber 1 between the upper end of the guide channel 101 and the lower end of the drying cylinder 2. A vibration device 106 is fixedly connected to the middle of the lower end of the angled baffle net 105. After drying is completed, the feeding port 103 is rotated to the front end again and the arc-shaped sealing plate 3 is opened. Then the feeding port 103 is rotated to the lower end so that the calcium carbonate powder can be discharged. The calcium carbonate powder falls through the feed port 103 onto the angled barrier screen 105. The vibration device 106 drives the angled barrier screen 105 to vibrate, accelerating the passage of the calcium carbonate powder through the filter screen. The angled barrier screen 105 separates the grinding balls 204 from the powder, and the grinding balls 204 roll to the front end of the angled barrier screen 105, making it easy for personnel to pick them up and put them back into the drying cylinder 2. The calcium carbonate powder that has passed through the angled barrier screen 105 is guided by the guide channel 101 and discharged from the discharge port 102.

[0025] Please see Figure 3 An arc-shaped connecting plate 301 is fixedly connected to the middle of the front end of the arc-shaped sealing plate 3. The arc-shaped connecting plate 301 is fixedly connected to the outer wall of the drying cylinder 2 by bolts 302. The arc-shaped sealing plate 3 is fixed to the outer wall of the drying cylinder 2 by bolts 302. When feeding materials, the arc-shaped sealing plate 3 can be opened by removing bolts 302.

[0026] Please see Figure 2 and Figure 4Limiting tubes 107 are fixedly connected to the middle of both ends of the drying chamber 1. Rotating shafts 205 are fixedly connected to the middle of both ends of the drying cylinder 2. The two rotating shafts 205 are respectively inserted into the two limiting tubes 107. A drive box 4 is fixedly connected to one end of the drying chamber 1. A drive motor 401 is fixedly installed inside the drive box 4. A worm gear 402 is connected to the output shaft of the drive motor 401 through a coupling. One end of the rotating shaft 205 on one side of the drying cylinder 2 passes through the limiting tube 107 and extends into the drive box 4, where a worm wheel 206 is fixedly connected. The worm wheel 206 meshes with the teeth of the worm gear 402. The drive motor 401 drives the worm gear 402 to rotate, which in turn causes the worm gear 402 to mesh with the worm wheel 206 and drive the drying cylinder 2 to rotate.

[0027] Working Principle: In operation, the drive motor 401 is first started to rotate the worm gear 402. Through the meshing transmission between the worm gear 402 and the worm wheel 206, the drying cylinder 2 slowly rotates within the limiting tube 107 via the rotating shaft 205. When the powder outlet 203 rotates to the front end, the drive motor 401 is stopped, the bolt 302 is removed to open the arc-shaped sealing plate 3, and the calcium carbonate powder to be dried and the grinding balls 204 are loaded into the drying cylinder 2 through the feeding port 103 and then resealed. The heating lamp 104 is then turned on to heat the drying cylinder 2, while the drive motor 401 continuously rotates the drying cylinder 2, causing the powder to tumble inside. Moisture generated during the drying process is absorbed by the absorbent cloth 202 and discharged through the support net 201. The grinding balls 204 collide and grind the powder as the cylinder rotates, preventing agglomeration. After drying, the powder outlet 203 is repositioned to the lower end, the arc-shaped sealing plate 3 is opened to allow the material to fall to the angled barrier net 105, the vibration device 106 is started to make the powder quickly pass through the mesh and enter the guide channel 101, while the grinding balls 204 are blocked and gather along the slope for recycling. Finally, the dried powder is discharged through the discharge port 102 to complete the operation.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A drying apparatus for calcium carbonate powder, comprising a drying chamber (1), characterized in that: The drying chamber (1) is rotatably connected to a drying cylinder (2). A support net (201) is fixedly installed in the middle of the upper end of the drying cylinder (2). A moisture-absorbing cloth (202) is fixedly connected to the lower end face of the support net (201). A powder outlet (203) is provided in the middle of the lower end face of the drying cylinder (2). An arc-shaped sealing plate (3) is rotatably connected to the lower end face of the drying cylinder (2) and below the powder outlet (203). Multiple grinding balls (204) are provided inside the drying cylinder (2). Multiple heating lamps (104) are fixedly connected to both the front and rear ends of the upper end of the drying cylinder (2) inside the drying chamber (1).

2. The drying apparatus for calcium carbonate powder according to claim 1, characterized in that: The drying box (1) has a feeding port (103) on its front end, a guide channel (101) is provided at the lower end of the interior of the drying box (1), and a discharge port (102) is provided between the middle of the lower end of the drying box (1) and the guide channel (101).

3. The drying apparatus for calcium carbonate powder according to claim 1, characterized in that: Inside the drying box (1), a bendable barrier net (105) is fixedly connected between the upper end of the guide channel (101) and the lower end of the drying cylinder (2). A vibration device (106) is fixedly connected to the middle of the lower end of the bendable barrier net (105).

4. The drying apparatus for calcium carbonate powder according to claim 1, characterized in that: An arc-shaped connecting plate (301) is fixedly connected to the middle of the front end of the arc-shaped sealing plate (3), and the arc-shaped connecting plate (301) is fixedly connected to the outer wall of the drying cylinder (2) by bolts (302).

5. A drying apparatus for calcium carbonate powder according to claim 1, characterized in that: Limiting tubes (107) are fixedly connected to the middle of both ends of the drying box (1), and rotating shafts (205) are fixedly connected to the middle of both ends of the drying cylinder (2). The two rotating shafts (205) are respectively inserted into the two limiting tubes (107).

6. A drying apparatus for calcium carbonate powder according to claim 5, characterized in that: A drive box (4) is fixedly connected to one end face of the drying box (1). A drive motor (401) is fixedly installed inside the drive box (4). A worm gear (402) is connected to the output shaft of the drive motor (401) through a coupling.

7. A drying apparatus for calcium carbonate powder according to claim 6, characterized in that: One end of the rotating shaft (205) on one side of the drying cylinder (2) extends through the limiting tube (107) into the drive box (4) and is fixedly connected to a worm gear (206), which meshes with the teeth of the worm (402).

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