Disc granulation device for calcium chloride dihydrate powder

Abstract

The utility model discloses a disc granulation device for calcium chloride dihydrate powder, which relates to the technical field of recycling of calcium chloride dihydrate powder and comprises a granulation rack. The granulating rack comprises a first inclined plane and a second inclined plane which are perpendicular to each other, a rotatable granulating disc rotating shaft is mounted on the first inclined plane, a granulating disc is fixedly mounted at the top end of the granulating disc rotating shaft, and the granulating disc is parallel to the second inclined plane; one end of a supporting bracket is fixedly mounted on the second inclined surface, the other end of the supporting bracket is positioned above the granulation disc and is provided with a second motor, and the second motor is connected with a self-cleaning structure through a rotatable connecting rod; the self-cleaning structure comprises a plurality of scraping plates, and the plurality of scraping plates extend into the granulation disc and are fixedly connected through a fixing frame; one end, provided with the atomizing nozzle, of the atomized water pipeline is located above the granulating disc, and one end of the atomized water pipeline is connected with an external water outlet connector. The calcium chloride dihydrate powder recycling device realizes recycling of calcium chloride dihydrate powder and avoids waste of calcium resources.

Description

Technical Field

[0001] The utility model relates to the technical field of recycling calcium chloride dihydrate powder, in particular to a disc granulating device for calcium chloride dihydrate powder. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Calcium chloride dihydrate has extremely strong hygroscopicity, is often used as a desiccant, and is widely used. At present, calcium chloride dihydrate products are mainly spherical, flaky and powdery, and the production process corresponding to different downstream markets is also different. In the existing calcium chloride dihydrate production process, no matter spherical, flaky or powdery calcium chloride dihydrate, a large amount of dust will inevitably be generated. The production of spherical calcium chloride dihydrate mainly adopts technologies such as rotation+fluidized bed granulation and high-tower fluidized bed granulation. In this production process, a large amount of calcium chloride dihydrate powder will often be produced due to improper process control or between particles, between particles and production equipment, or even factors such as particles falling and hitting. These powders will adhere to the inside of the device, increasing the difficulty and load of tail gas treatment. For this reason, it is necessary to carry out secondary recovery treatment to the calcium chloride dihydrate powder produced in the production process.

[0004] Currently, the secondary recovery and treatment of calcium chloride dihydrate powder mostly involves emptying it through a dust removal device, or forming a calcium solution of a certain concentration after water bath treatment, or storing it in a seed crystal silo as a seed crystal, or directly emptying it after treatment. However, current dust recovery and treatment methods have certain defects. For example, the calcium solution formed after washing does not meet the granulation requirements in terms of concentration and composition, and needs to be re-evaporated and concentrated, increasing energy consumption and equipment operation cycle; calcium chloride seed crystals generally require anhydrous calcium chloride powder, but the powder produced during the production process contains a certain amount of moisture, which does not meet the high granulation requirements of calcium chloride products, and will adhere to pipes, seed crystal silos and other units, making them difficult to clean; and directly emptying it after treatment results in a waste of calcium resources.

[0005] That is, currently calcium chloride dihydrate powder is difficult to be effectively processed, and existing methods cannot achieve effective secondary recycling of calcium chloride dihydrate powder, which easily leads to problems such as waste of calcium resources. Utility Model Content

[0006] In response to the above-mentioned problems and defects in the prior art, the utility model provides a disc granulating device for calcium chloride dihydrate powder. The powder generated during the production of calcium chloride dihydrate is collected and placed in a granulating disc in the device. The calcium chloride dihydrate powder is reused through the disc granulation method. A rotating self-cleaning structure is provided in the disc, which solves the problem of easy sticking of materials by traditional scrapers, has a larger cleaning area and better cleaning effect, thereby effectively avoiding the waste of calcium resources. The spherical calcium chloride dihydrate produced by the device is dried in a fluidized bed and then packaged and stored. The product can be used as a desiccant, snow melting agent, etc., effectively increasing the added value of production and solving the problem of difficult handling of calcium chloride dihydrate powder.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A disc granulating device for calcium chloride dihydrate powder comprises a granulating frame;

[0009] The granulation machine frame includes a first and a second inclined surface that are perpendicular to each other, a rotatable granulation disc rotating shaft is installed on the first inclined surface, a granulation disc is fixedly installed on the top of the granulation disc rotating shaft, and the granulation disc is parallel to the second inclined surface; one end of the support bracket is fixedly installed on the second inclined surface, the other end of the support bracket is located above the granulation disc and is installed with a second motor, and the second motor is connected to a self-cleaning structure through a rotatable connecting rod; the self-cleaning structure includes a fixed frame and a plurality of scrapers, the plurality of scrapers extend into the interior of the granulation disc and are fixedly connected by a fixed frame; one end of the atomizing nozzle is provided on the atomizing water pipe and is located above the granulation disc, and one end of the atomizing water pipe is connected to an external water outlet joint.

[0010] According to a further technical solution, the granulator frame further comprises a fixed base, which is fixedly mounted on a horizontal plane, and on which first and second inclined surfaces which are perpendicular and symmetrical to each other are fixed, wherein the vertical angles of the first and second inclined surfaces are away from the fixed base.

[0011] According to a further technical solution, a first motor is fixedly provided on the first inclined surface, and the first motor is used to drive the rotating shaft of the granulating disc to rotate.

[0012] According to a further technical solution, both the first motor and the second motor are electrically connected to an external controller and a power supply.

[0013] According to a further technical solution, a fixing frame is fixedly mounted on the first inclined surface, a first motor is fixedly mounted on one end of the fixing frame, the first motor is connected to a motor rotating shaft, and a same synchronous belt is wound around the motor rotating shaft and the granulating disc rotating shaft.

[0014] According to a further technical solution, the connecting rod is fixedly connected to the center point of the fixed frame, the fixed frame is any one of an equilateral triangle, a rectangle, a pentagon, and a hexagon, and a scraper is fixed on each corner of the fixed frame.

[0015] According to a further technical solution, at least one of the multiple scrapers is in contact with the inner bottom surface of the granulation disc.

[0016] According to a further technical solution, the granulation disc is a cylindrical shell structure with one side open, and a discharge port is provided on the side wall of the granulation disc close to the second inclined surface.

[0017] According to a further technical solution, the discharge port faces the aggregate silo pipeline, and the aggregate silo pipeline is connected to the aggregate silo.

[0018] According to a further technical solution, a pressure pump is provided in the atomized water pipeline, and the pressure pump is used to pump external water into the pipeline and spray it out through the atomizing nozzle. The pressure pump is electrically connected to an external controller and a power supply.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The utility model provides a disc granulating device for calcium chloride dihydrate powder. The device collects powder generated in the process of producing calcium chloride dihydrate and places it in a granulating disc in the device. As the disc rotates, an appropriate amount of atomized water is sprayed into the powder, and the calcium chloride dihydrate powder gradually forms balls. The disc granulating method realizes the reuse of the calcium chloride dihydrate powder. The disc granulating method is simple to operate, has low energy consumption, and takes up little space. By controlling the amount of calcium chloride dihydrate dust and the amount of atomized water, an applicable calcium chloride product can be generated, so that the calcium chloride dihydrate powder can be effectively used. The calcium chloride dihydrate powder collecting and re-granulating device not only reduces the difficulty of tail gas treatment, but also improves the reuse of calcium resources and expands economic benefits. The spherical calcium chloride dihydrate produced by the device is dried in a fluidized bed and then packaged and stored. The product can be used as a desiccant, snow melting agent, etc., effectively increasing the added value of production and solving the problem that the current calcium chloride dihydrate powder is difficult to effectively handle.

[0021] 2. The disc granulating device for calcium chloride dihydrate powder provided by the utility model is provided with a granulating disc for generating spherical calcium chloride dihydrate, and a rotating self-cleaning structure is provided inside the disc. Multiple scrapers in the rotatable structure rotate clockwise to clean the wall-adhering materials and powder in the disc, thereby avoiding waste of calcium resources. The rotational inertia of the scrapers solves the problem of easy adhesion of traditional fixed scrapers, thereby achieving a larger cleaning area and better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 This is a side view of the disc granulating device for calcium chloride dihydrate powder of the present invention;

[0024] Figure 2 It is a top view of the granulating disc in the disc granulating device for calcium chloride dihydrate powder of the utility model.

[0025] Among them, 1. Granulating frame; 2. Support bracket; 3. Second motor; 4. Connecting rod; 5. Granulating disc rotating shaft; 6. First motor; 7. Motor rotating shaft; 8. Atomizing water pipe; 9. Atomizing nozzle; 10. Self-cleaning structure; 11. Discharge port; 12. Granulating disc; 13. Fixed frame; 14. First inclined surface; 15. Second inclined surface; 16. Fixed base; 17. Fixed frame; 18. Scraper. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Considering the advantages of spherical calcium chloride, such as beautiful appearance, good fluidity, low moisture absorption and low hardening, the utility model proposes a disc granulating device for calcium chloride dihydrate powder. The device is used to place powder generated in the production process of calcium chloride dihydrate (such as calcium chloride dihydrate powder in a cyclone dust collector) on a granulating disc of the device and granulate the powder through a disc granulating method. This can achieve the reuse of powder generated in the production of flaky, powdery or spherical calcium chloride dihydrate. The generated spherical calcium chloride dihydrate is further dried in a fluidized bed dryer, and the dried spherical calcium chloride dihydrate product is packaged and stored. This allows the reuse and production of the recovered powder to generate calcium chloride products, thereby improving the reuse of calcium resources and expanding economic benefits.

[0029] like Figure 1As shown, the present invention proposes a disc granulating device for calcium chloride dihydrate powder, comprising a granulating frame 1, which comprises a fixed base 16 and a first inclined surface 14 and a second inclined surface 15 perpendicular to each other, that is, the fixed base 16 is fixedly mounted on a horizontal surface (such as the ground), and the fixed base 16 is fixed with a first inclined surface 14 and a second inclined surface 15 perpendicular to each other and symmetrical to each other, and the vertical angles of the first inclined surface 14 and the second inclined surface 15 are away from the fixed base.

[0030] Furthermore, a rotatable granulation disc rotating shaft 5 is mounted on the first inclined surface 14, a granulation disc 12 is fixedly mounted on the top of the granulation disc rotating shaft 5, and the granulation disc 12 is parallel to the second inclined surface 15; a first motor 6 is also fixedly mounted on the first inclined surface 14, and the rotatable granulation disc rotating shaft 5 is driven to rotate by the first motor 6. Specifically, a fixing frame 13 is fixedly mounted on the first inclined surface, one end of the fixing frame 13 is fixedly mounted with the first motor 6, and the other end of the fixing frame 13 is fixed on the first inclined surface 14, the first motor 6 is connected to the motor rotating shaft 7, and the motor rotating shaft 7 and the granulation disc rotating shaft 5 are wound with the same synchronous belt. Preferably, the rotational speed of the disc granulating device (i.e., the rotational speed of the granulation disc rotating shaft) is adjustable within 0 to 100 r / min.

[0031] When the first motor is running, the motor shaft is driven to rotate, and the rotation is transmitted to the granulation disc shaft through the synchronous belt, driving the granulation disc shaft to rotate, and then driving the granulation disc to rotate, thereby achieving mixed granulation of the calcium chloride dihydrate powder placed in the granulation disc.

[0032] Furthermore, one end of the support bracket 2 is fixedly mounted on the second inclined surface 15, and the other end of the support bracket 2 is located above the granulation disc 12 and is equipped with a second motor 3. The second motor 3 is connected to the self-cleaning structure 10 through a rotatable connecting rod 4, and the self-cleaning structure prevents powder from sticking to the bottom of the granulation disc. Figure 2 As shown, the self-cleaning structure 10 includes a fixed frame 17 and a plurality of scrapers 18. The plurality of scrapers 18 extend into the interior of the granulating disc and are fixedly connected to each other by the fixed frame 17. As an embodiment, the fixed frame 17 is any polygon such as an equilateral triangle, a rectangle, a pentagon, or a hexagon. The present invention adopts a rectangular fixed frame. A scraper 18 is fixed to each corner of the fixed frame 17. At least one of the plurality of scrapers is in contact with the inner bottom surface of the granulating disc. In addition, the connecting rod 4 is fixedly connected to the center point of the fixed frame 17.

[0033] When the second motor is running, it drives the connecting rod to rotate, causing the fixed frame to rotate, which in turn drives the multiple scrapers to rotate, thereby completing the cleaning of the sticky material in the granulation disc. In the utility model, the self-cleaning structure is driven by the motor, and when in operation, it rotates clockwise to clean the material stuck to the wall of the disc. That is, through the clockwise rotation of the multiple scrapers in the rotatable structure, the sticky material and powder in the disc are cleaned, avoiding the waste of calcium resources. The rotational inertia of the scrapers solves the problem of traditional fixed scrapers being easily stuck to the material. Compared with traditional static scraper cleaning structures, it can achieve a larger cleaning area and better cleaning effect.

[0034] Further, such as Figure 2 As shown, the atomized water pipeline 8 is provided with one end of atomizing nozzle 9 and is located above the granulation disk 12. One end of the atomized water pipeline 8 is connected to an external water outlet joint. The atomized water pipeline can be supported by an external support frame, and a pressure pump is provided in the atomized water pipeline. The pressure pump is used for pumping external water into the pipeline and ejecting it through the atomizing nozzle. Preferably, atomized water is provided by a pressure pump, and its flow rate is adjustable in 0 to 1000ml. In the utility model, based on this device, the disc granulation mode can be adopted, by controlling the amount of calcium chloride dihydrate dust, the granulation disk rotating speed, the amount of atomized water, to generate a spherical calcium chloride dihydrate finished product, to avoid wasting calcium resources.

[0035] In the present invention, the first motor, the second motor, and the pressure pump are all electrically connected to an external controller and a power supply, and the operation of each device is controlled by the external controller.

[0036] Furthermore, the granulation disc 12 is a cylindrical shell structure with one side open. A discharge port 11 is provided on the side wall of the granulation disc near the second inclined surface. The discharge port 11 is directly opposite the aggregate silo pipe, and the aggregate silo pipe is connected to the aggregate silo. The spherical calcium chloride dihydrate in the aggregate silo is dried in a fluidized bed and then packaged and stored. The product can be used as a desiccant, snow melting agent, etc., thereby solving the problem of difficult handling of calcium chloride dihydrate powder.

[0037] The specific working process of this utility model is as follows:

[0038] During operation, the first motor of the disc granulating device is turned on and the speed is set. The entire machine is operated through the motor rotating shaft and the granulating disc rotating shaft, and a certain amount of calcium chloride dihydrate powder is added to the granulating disc at the same time;

[0039] Turn on the pressurized water pump, set the atomized water flow rate, and spray water onto the calcium chloride dihydrate powder in the granulation disc as the turntable rotates. During the spraying process, the water is atomized by the atomizing nozzle 9 and then sprayed out, and contacts the calcium chloride dihydrate powder in the granulation disc to form granules;

[0040] Observe the sticking condition inside the granulating disc and start the second motor to drive the self-cleaning structure for cleaning at any time;

[0041] Calcium chloride dihydrate powder was continuously added and mixed, gradually forming spheres. The resulting spheres had a particle size distribution primarily between 1 and 3 mm and a moisture content between 12 and 16%. For Example 1, using an atomized water flow rate of 20 ml / min, 10 kg of calcium chloride dihydrate powder, and a disk granulator speed of 30 r / min, the resulting calcium chloride granule size distribution is shown in Table 1 below. For Example 2, using an atomized water flow rate of 50 ml / min, 25 kg of calcium chloride dihydrate powder, and a disk granulator speed of 30 r / min, the resulting calcium chloride granule size distribution is shown in Table 2 below.

[0042] Table 1 Particle size distribution of calcium chloride particles in Example 1

[0043]

[0044] Table 2 Example 2 Calcium chloride particle size distribution

[0045]

[0046] As the weight of the balled calcium chloride particles increases, their trajectory becomes shorter as the disc granulator rotates, and they fall to the bottom of the granulation disc and are discharged through the discharge port into the collection bin pipe. The unballed calcium chloride dihydrate powder continues to rotate with the disc granulator and continues to granulate in contact with the atomized water.

[0047] The pelletized calcium chloride particles in the aggregate bin are transported to the fluidized bed dryer for dehydration and drying. After dehydration and drying, the finished products are packaged, encapsulated and stored.

[0048] The device proposed by the utility model has a simple structure and is easy to operate, realizes the recycling of calcium chloride dihydrate powder and further realizes granulation, and has a positive effect on the industrial production of calcium chloride dihydrate.

[0049] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A disc granulating device for calcium chloride dihydrate powder, characterized in that: Includes granulator frame; The granulation machine frame includes a first and a second inclined surface that are perpendicular to each other, a rotatable granulation disc rotating shaft is installed on the first inclined surface, a granulation disc is fixedly installed on the top of the granulation disc rotating shaft, and the granulation disc is parallel to the second inclined surface; one end of the support bracket is fixedly installed on the second inclined surface, the other end of the support bracket is located above the granulation disc and is installed with a second motor, and the second motor is connected to a self-cleaning structure through a rotatable connecting rod; the self-cleaning structure includes a fixed frame and a plurality of scrapers, the plurality of scrapers extend into the interior of the granulation disc and are fixedly connected by a fixed frame; one end of the atomizing nozzle is provided on the atomizing water pipe and is located above the granulation disc, and one end of the atomizing water pipe is connected to an external water outlet joint.

2. A disc granulating device for calcium chloride dihydrate powder according to claim 1, characterized in that: The granulator frame further comprises a fixed base, which is fixedly placed on a horizontal plane. The fixed base is fixedly provided with a first inclined surface and a second inclined surface which are perpendicular and symmetrical to each other. The vertical angles of the first inclined surface and the second inclined surface are away from the fixed base.

3. A disc granulating device for calcium chloride dihydrate powder according to claim 1, characterized in that: A first motor is also fixedly provided on the first inclined surface, and the first motor is used to drive the rotating shaft of the granulating disc to rotate.

4. A disc granulating device for calcium chloride dihydrate powder according to claim 3, characterized in that: The first motor and the second motor are both electrically connected to an external controller and a power source.

5. A disc granulating device for calcium chloride dihydrate powder according to claim 3, characterized in that: A fixing frame is fixedly mounted on the first inclined surface, and a first motor is fixedly mounted on one end of the fixing frame. The first motor is connected to a motor rotating shaft, and a same synchronous belt is wound around the motor rotating shaft and the granulating disc rotating shaft.

6. A disc granulating device for calcium chloride dihydrate powder according to claim 1, characterized in that: The connecting rod is fixedly connected to the center point of the fixed frame. The fixed frame is any one of an equilateral triangle, a rectangle, a pentagon, and a hexagon. A scraper is fixedly provided on each corner of the fixed frame.

7. A disc granulating device for calcium chloride dihydrate powder according to claim 1, characterized in that: At least one of the multiple scrapers is in contact with the inner bottom surface of the granulation disc.

8. A disc granulating device for calcium chloride dihydrate powder according to claim 1, characterized in that: The granulation disc is a cylindrical shell structure with one side open, and a discharge port is provided on the side wall of the granulation disc close to the second inclined surface.

9. A disc granulating device for calcium chloride dihydrate powder according to claim 8, characterized in that: The discharge port faces the material collection bin pipeline, and the material collection bin pipeline is connected to the material collection bin.

10. A disc granulating device for calcium chloride dihydrate powder according to claim 1, characterized in that: A pressure pump is provided in the atomized water pipeline. The pressure pump is used to pump external water into the pipeline and spray it out through the atomizing nozzle. The pressure pump is electrically connected to an external controller and a power supply.

Images