Drying device for calcium carbonate powder

Abstract

A calcium carbonate powder drying device comprises a box body, a feeding port is formed in the top of the box body, multiple layers of polyester fabrics are arranged in the box body, the multiple layers of polyester fabrics are distributed in a left-right staggered mode from top to bottom, and an S-shaped channel is formed in the box body; a material scraping plate capable of transversely moving is arranged above the polyester fabrics and is used for pushing materials on the upper-layer polyester fabrics to the lower-layer polyester fabrics; a hot air inlet pipe is arranged at the bottom of the side wall of the box body, a hot air outlet pipe is arranged at the top of the side wall, and hot air input into the box body through the hot air inlet pipe flows along the S-shaped channel and is discharged through the hot air outlet pipe after making contact with materials. By the adoption of the structure, the drying efficiency can be effectively improved, energy consumption can be effectively reduced, the material fluidity and uniformity in the drying process are improved, and therefore the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanometer calcium carbonate production technical field, specifically is a kind of drying device of calcium carbonate powder. BACKGROUND

[0002] In chemical, pharmaceutical, food processing and other industries, calcium carbonate is widely used as an important basic material. In order to ensure the quality and storage stability of calcium carbonate powder, effective drying treatment is an essential step in the production process. Traditionally, the methods of drying calcium carbonate powder include but are not limited to natural drying, hot air drying, vacuum drying, etc. However, these methods often have problems such as low efficiency, high energy consumption, uneven heating of materials, and easy dust pollution. In addition, due to the accumulation of calcium carbonate powder during drying, when the external calcium carbonate powder is dried, the internal calcium carbonate powder still contains some moisture, which causes the calcium carbonate powder to agglomerate and affects the drying quality. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a drying device for calcium carbonate powder to solve the problems of low efficiency, insufficient drying and material agglomeration in the existing drying process of calcium carbonate powder.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a drying device for calcium carbonate powder, comprising a box, a feed inlet is provided at the top of the box, a plurality of layers of polyester cloth are provided in the box, the layers of polyester cloth are arranged in a staggered manner from top to bottom and left to right, and an S-shaped channel is formed in the box.

[0005] A scraping plate capable of moving horizontally is provided above the polyester cloth, and the scraping plate is used to push the material on the upper layer of polyester cloth to the lower layer of polyester cloth.

[0006] A hot air inlet pipe is provided at the bottom of the side wall of the box, and a hot air outlet pipe is provided at the top of the side wall. The hot air input into the box flows along the S-shaped channel and contacts with the material, and then is discharged through the hot air outlet pipe.

[0007] In the preferred scheme, guide grooves are provided on the inner walls of the two sides of the box, and lead screws are provided in the guide grooves. The two sides of the scraping plate are provided with extension parts located in the guide grooves, and the lead screws pass through the extension parts and form a threaded cooperation with the scraping plate.

[0008] In the preferred scheme, one end of the lead screw penetrates to the outside of the box, a driven gear is provided on the end of the lead screw located outside the box, an intermediate shaft is provided on the outer wall of the box, a driving gear is provided on the intermediate shaft, the driving gear is located between the two driven gears at the same height, and the driving gear is engaged with the two driven gears.

[0009] In the preferred scheme, the top of the box is provided with a first motor, and a belt wheel is arranged on the driving shaft of the first motor and the middle shaft; the belt wheels are connected by a transmission belt.

[0010] The upper and lower layer scrapers on the same side of the box are connected by belt wheels and transmission belts.

[0011] In the preferred scheme, the bottom of the box is provided with a circular material receiving groove, and a discharge hopper is arranged in the circular material receiving groove.

[0012] In the preferred scheme, a material stirring rod is further arranged in the circular material receiving groove, and a second motor is arranged on the bottom surface of the box, and the driving shaft of the second motor penetrates the center of the circular material receiving groove and is connected and fixed with the material stirring rod.

[0013] In the preferred scheme, one end of the polyester cloth is fixed by a fixing element in the box, the other end of the polyester cloth penetrates the side wall of the box and extends out of the box, and one end of the polyester cloth outside the box is wound on a polyester cloth winding wheel.

[0014] A winding drum with a torsion spring is arranged on the polyester cloth winding wheel.

[0015] The drying device for calcium carbonate powder has the following beneficial effects by adopting the above structure:

[0016] (1) The S-shaped channel formed by the multiple layers of polyester cloth increases the contact area and time of the material and the hot air, ensures the uniform heating of the material in the drying process, and greatly improves the drying efficiency. At the same time, the design of the S-shaped channel reduces dust flying and reduces the loss of the material in the drying process;

[0017] (2) The horizontal movement mechanism of the scraper can effectively push the upper layer of material to the next layer, ensure the continuity and fluidity of the material in the entire drying process, avoid the local accumulation phenomenon, and further promote the uniformity of the drying;

[0018] (3) One end of the polyester cloth extends out of the box and is wound on the winding drum with a torsion spring, which can avoid the tension decrease of the polyester cloth caused by the repeated movement of the scraper, thereby ensuring the complete scraping of the scraper and reducing the residue of the material on the polyester cloth. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in connection with the drawings and examples:

[0020] Figure 1 It is the whole structure schematic diagram of the utility model.

[0021] Figure 2 It is the partial side section structure schematic diagram of the utility model.

[0022] Figure 3 It is the partial side structure schematic diagram of the utility model.

[0023] Figure 4 It is the box bottom plan structure schematic diagram of the utility model.

[0024] In the drawing: box 1, feed inlet 2, scraper 3, polyester cloth 4, hot air inlet pipe 5, hot air outlet pipe 6, guide groove 7, screw rod 8, first motor 9, transmission belt 10, intermediate shaft 11, pulley 12, driving gear 13, driven gear 14, circular material receiving groove 15, poking rod 16, annular groove 17, hopper 18, second motor 19, polyester cloth winding wheel 20. DETAILED DESCRIPTION

[0025] As Figures 1-4 In the embodiment, a kind of drying device of calcium carbonate powder, including box 1, box 1 top is equipped with feed inlet 2, box 1 is equipped with multiple layers of polyester cloth 4, multiple layers of polyester cloth 4 are arranged from top to bottom and left and right staggered distribution, and form S-shaped channel in box 1;

[0026] The polyester cloth 4 is equipped with the scraper 3 that can move horizontally above, and the scraper 3 is used to push the material on the upper layer polyester cloth 4 to the lower layer polyester cloth 4;

[0027] The side wall bottom of the box 1 is equipped with hot air inlet pipe 5, and the side wall top is equipped with hot air outlet pipe 6, and the hot air input into the box 1 along S-shaped channel and is contacted with material after by hot air outlet pipe 6 is discharged.

[0028] In the preferred scheme, the box 1 is equipped with guide groove 7 on both sides inner wall, and the guide groove 7 is equipped with screw rod 8, and the extension part in guide groove 7 is equipped on both sides of the scraper 3, and the screw rod 8 passes through the extension part and forms thread cooperation between the scraper 3.

[0029] In the preferred scheme, one end of the screw rod 8 is worn to the outside of the box 1, and the driven gear 14 is equipped on the one end of the screw rod 8 outside the box 1, and the intermediate shaft 11 is equipped on the outer wall of the box 1, and the driving gear 13 is equipped on the intermediate shaft 11, and the driving gear 13 is located between the two driven gears 14 at the same height, and the driving gear 13 is engaged between the two driven gears 14.

[0030] In the preferred scheme, the box 1 is equipped with first motor 9 on top, and the pulley 12 is equipped on the driving shaft of the first motor 9 and the intermediate shaft 11, and the transmission belt 10 is driven connected between the pulley 12.

[0031] The intermediate shaft 11 corresponding to the upper and lower layer scraper 3 on the same side of the box 1 is also driven by pulley 12 and transmission belt 10.

[0032] In a preferred embodiment, the bottom of the box body 1 is provided with a circular receiving groove 15, and the circular receiving groove 15 is provided with a feeding hopper 18.

[0033] In a preferred embodiment, the circular receiving groove 15 is further provided with a material-pulling rod 16, and the bottom surface of the housing 1 is provided with a second motor 19. The drive axis of the second motor 19 passes upward through the center of the circular receiving groove 15 and is connected and fixed to the material-pulling rod 16.

[0034] In a preferred embodiment, one end of the polyester fabric 4 is fixed by a fastener inside the box 1, and the other end passes through the side wall of the box 1 and extends to the outside of the box 1. One end of the polyester fabric 4 located outside the box 1 is wound on the polyester fabric reel 20.

[0035] The polyester fabric reel 20 is equipped with a drum with a torsion spring.

[0036] The present invention discloses a calcium carbonate powder drying apparatus, which, when performing calcium carbonate powder drying operations:

[0037] Calcium carbonate powder to be dried is added through inlet 2, and the material is evenly distributed on the top layer of polyester fabric 4. As the first motor 9 operates, the scraper 3 begins to move laterally along the guide groove 7, pushing the material layer by layer onto the polyester fabric 4 below. Simultaneously, hot air enters the chamber 1 through the hot air inlet pipe 5, flowing along the S-shaped channel to heat and dry the material. The dried hot air is then discharged through the hot air outlet pipe 6. After drying, the material falls into the circular receiving trough 15, and the second motor 19 drives the feeding rod 16 to rotate, pushing the material to the discharge hopper 18 for subsequent processing or packaging.

[0038] Building upon the above solutions, temperature and humidity sensors can be further installed at different locations within the chamber to monitor drying environment parameters in real time and provide feedback to the control system for more precise temperature and humidity control. Alternatively, a secondary air return design can be introduced, allowing some of the exhausted hot air to be filtered, reheated, and then reintroduced into the chamber, improving energy efficiency.

Claims

1. A drying apparatus for calcium carbonate powder, characterized in that: Includes a box body (1), with a feed inlet (2) at the top of the box body (1), and multiple layers of polyester fabric (4) inside the box body (1). The multiple layers of polyester fabric (4) are arranged in a staggered manner from top to bottom and form an S-shaped channel inside the box body (1). The polyester fabric (4) is provided with a scraper (3) that can move laterally. The scraper (3) is used to push the material on the upper polyester fabric (4) onto the lower polyester fabric (4). The bottom of the side wall of the box (1) is provided with a hot air inlet pipe (5) and the top of the side wall is provided with a hot air outlet pipe (6). The hot air input into the box (1) by the hot air inlet pipe (5) flows along the S-shaped channel and comes into contact with the material, and is discharged by the hot air outlet pipe (6).

2. The drying apparatus for calcium carbonate powder according to claim 1, characterized in that: The inner walls on both sides of the box (1) are provided with guide grooves (7), and the guide grooves (7) are provided with lead screws (8). The scraper (3) has extensions on both sides located in the guide grooves (7). The lead screws (8) pass through the extensions and form a threaded connection with the scraper (3).

3. The drying apparatus for calcium carbonate powder according to claim 2, characterized in that: One end of the lead screw (8) extends outside the housing (1). A driven gear (14) is provided on one end of the lead screw (8) outside the housing (1). An intermediate shaft (11) is provided on the outer wall of the housing (1). A driving gear (13) is provided on the intermediate shaft (11). The driving gear (13) is located between two driven gears (14) at the same height, and the driving gear (13) meshes with the two driven gears (14).

4. The drying apparatus for calcium carbonate powder according to claim 3, characterized in that: The top of the housing (1) is provided with a first motor (9), and pulleys (12) are provided on both the drive shaft of the first motor (9) and the intermediate shaft (11). The pulleys (12) are connected to each other by a transmission belt (10). The intermediate shafts (11) corresponding to the upper and lower scraper plates (3) located on the same side of the box (1) are also driven by pulleys (12) and transmission belts (10).

5. The drying apparatus for calcium carbonate powder according to claim 1, characterized in that: The bottom of the box (1) is provided with a circular receiving groove (15), and a feeding hopper (18) is provided in the circular receiving groove (15).

6. The drying apparatus for calcium carbonate powder according to claim 5, characterized in that: The circular receiving groove (15) is also provided with a material-pulling rod (16), and the bottom surface of the box (1) is provided with a second motor (19). The drive shaft of the second motor (19) passes through the center of the circular receiving groove (15) and is connected and fixed to the material-pulling rod (16).

7. The drying apparatus for calcium carbonate powder according to claim 1, characterized in that: One end of the polyester fabric (4) is fixed by a fastener inside the box (1), and the other end passes through the side wall of the box (1) and extends to the outside of the box (1). One end of the polyester fabric (4) located outside the box (1) is wound on a polyester fabric reel (20). A drum with a torsion spring is provided on the polyester fabric reel (20).

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