Drying equipment for preparing calcium oxide

Abstract

The utility model discloses drying equipment for preparing calcium oxide, which comprises an equipment body, the equipment body comprises a feed pipe and a discharge port, the feed pipe is arranged at the top of the equipment body, the discharge port is arranged at the bottom of the equipment body, and a dual drying structure is arranged in the equipment body; the double drying structure comprises a solid drying structure and a gaseous drying structure, and the solid drying structure is connected with the gaseous drying structure through a connecting pipe. Through the mode, the drying equipment for preparing the calcium oxide adopts a dual drying structure, so that calcium oxide with different particle sizes, shapes and densities can be uniformly dried, and the problems that the drying is not uniform and the external drying is faster than the internal drying possibly caused by the traditional hot air drying are solved.

Description

Technical Field

[0001] The utility model belongs to the field of chemical equipment, and in particular relates to drying equipment for preparing calcium oxide. Background Art

[0002] When purifying calcium oxide, calcination, grinding and screening are usually used to remove impurities in the particles, thereby improving the purity of calcium oxide. Since calcium oxide has strong hygroscopicity and easily absorbs moisture in the air to form calcium hydroxide, which affects the grinding effect, therefore, during the grinding process, calcium oxide needs to be kept dry to avoid moisture.

[0003] Existing drying equipment mainly uses hot air drying. During hot air drying, due to the different sizes, shapes and densities of calcium oxide particles, it may cause uneven drying, with the outside drying faster than the inside, affecting the overall quality of the calcium oxide. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a drying device for preparing calcium oxide, which can evenly dry the calcium oxide with different particle sizes, shapes and densities.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: a drying device for preparing calcium oxide, comprising a device body, the device body comprising a feed pipe and a discharge port, the feed pipe is arranged at the top of the device body, the discharge port is arranged at the bottom of the device body, and a double drying structure is arranged in the device body;

[0006] The dual drying structure comprises a solid drying structure and a gas drying structure, and the solid drying structure is connected with the gas drying structure via a connecting pipe.

[0007] In a preferred embodiment of the utility model, the solid-state drying structure includes a rotary barrel and a motor, the rotary barrel is filled with desiccant, one end of the rotary barrel is connected to the feed pipe, and the other end is connected to the connecting pipe, the connecting end of the rotary barrel and the connecting pipe is provided with a chamfer, the rotary barrel is provided with a rotating joint at the connection with the feed pipe and the connecting pipe respectively, the side wall of the rotary barrel is provided with a circle of driven racks, the driven racks are connected to the driving gear on the motor, and the motor is installed in the device body through a bracket.

[0008] In a preferred embodiment of the utility model, the gaseous drying structure includes a compressor and a drying chamber, one end of the drying chamber is connected to the connecting pipe, and the other end is connected to the discharge port, the drying chamber is arranged in the equipment body, the compressor is installed on the outer wall of the equipment body, and the compressor is connected to the drying chamber through a one-way valve.

[0009] In a preferred embodiment of the present invention, the compressor delivers inert gas into the drying chamber.

[0010] In a preferred embodiment of the present invention, a storage box is provided at the inner bottom of the device body, and a ventilation plate is provided at the bottom of the storage box.

[0011] In a preferred embodiment of the utility model, the air permeable plate is provided with a plurality of air holes whose diameters are smaller than the diameters of the calcium oxide particles.

[0012] The beneficial effects of the utility model are as follows: the utility model is a drying device for preparing calcium oxide, which adopts a double drying structure, can make calcium oxide with different particle sizes, shapes and densities evenly dried, and solves the problems of uneven drying and external drying faster than internal drying that may be caused by traditional hot air drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the structure of a drying device for preparing calcium oxide.

[0014] The markings of the components in the attached drawings are as follows: 1. Equipment body; 2. Discharge port; 3. Feed pipe; 4. Rotating barrel; 5. Motor; 6. Driven rack; 7. Driving gear; 8. Bracket; 9. Chamfer; 10. Rotary joint; 11. Connecting pipe; 12. Drying chamber; 13. Compressor; 14. Storage box; 15. Breathable plate. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0016] See also Figure 1 , the utility model embodiment includes:

[0017] A drying device for preparing calcium oxide comprises a device body 1, wherein the device body 1 comprises a feed pipe 3 and a discharge port 2, wherein the feed pipe 3 is arranged at the top of the device body 1, and the discharge port 2 is arranged at the bottom of the device body 1. A double drying structure is arranged in the device body 1, which can make calcium oxide with different particle sizes, shapes and densities evenly dried, thereby solving the problems of uneven drying and faster drying outside than inside that may be caused by traditional hot air drying.

[0018] The dual drying structure includes a solid drying structure and a gas drying structure, and the solid drying structure is connected to the gas drying structure via a connecting pipe 11 .

[0019] The solid-state drying structure includes a rotating barrel 4 and a motor 5. The rotating barrel 4 is filled with a desiccant. In this embodiment, the desiccant is a silica gel ball, which is larger than the diameter of the connecting pipe 11 to prevent it from flowing into the drying chamber 12 through the connecting pipe 11.

[0020] One end of the rotary barrel 4 is connected to the feed pipe 3, and the other end is connected to the connecting pipe 11. The connecting end of the rotary barrel 4 and the connecting pipe 11 is provided with a chamfer 9, and the chamfer 9 allows calcium oxide to smoothly flow into the drying chamber 12 through the connecting pipe 11.

[0021] The rotating barrel 4 is provided with a rotating joint 10 at the connection points with the feed pipe 3 and the connecting pipe 11 respectively. The rotating joint 10 enables the rotating barrel 4 to rotate with the drive of the motor 5 when the feed pipe 3 and the connecting pipe 11 do not rotate, so that the desiccant is in full contact with the calcium oxide, thereby making the calcium oxide evenly dried.

[0022] The side wall of the rotary barrel 4 is provided with a circle of driven racks 6, and the driven racks 6 are connected to the driving gears 7 on the motor 5. The motor 5 is installed in the device body 1 through a bracket 8. The driving gears 7 cooperate with the driven racks 6, so that the motor 5 drives the rotary barrel 4 to rotate.

[0023] The gaseous drying structure includes a compressor 13 and a drying chamber 12, one end of the drying chamber 12 is connected to the connecting pipe 11, and the other end is connected to the discharge port 2, the drying chamber 12 is arranged in the equipment body 1, and the compressor 13 is installed on the outer wall of the equipment body 1, and the compressor 13 is connected to the drying chamber 12 through a one-way valve to prevent calcium oxide particles from falling into the compressor 13 and causing damage to the compressor 13.

[0024] The compressor 13 delivers the inert gas into the drying chamber 12. In this embodiment, the inert gas is nitrogen. The inert gas is used to pass through the surface of calcium oxide particles of different sizes, shapes and densities to remove moisture adsorbed on the surface, thereby achieving a drying effect.

[0025] A storage box 14 is provided at the bottom of the device body 1, and a breathable plate 15 is provided at the bottom of the storage box 14. The breathable plate 15 is provided with a plurality of pores with diameters smaller than the diameter of the calcium oxide particles, so that the inert gas can be discharged from the device body 1 and the calcium oxide particles can be stored.

[0026] Different from the prior art, the utility model is a drying device for preparing calcium oxide. The drying device adopts a double drying structure, which can evenly dry calcium oxide with different particle sizes, shapes and densities, solving the problems of uneven drying and external drying faster than internal drying that may be caused by traditional hot air drying.

[0027] In the description of the present utility model, it should be noted that the components are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional test methods. The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drying device for preparing calcium oxide, comprising a device body, wherein the device body comprises a feed pipe and a discharge port, wherein the feed pipe is arranged at the top of the device body, and the discharge port is arranged at the bottom of the device body, characterized in that: The equipment body is provided with a double drying structure; The dual drying structure comprises a solid drying structure and a gas drying structure, and the solid drying structure is connected with the gas drying structure via a connecting pipe.

2. A drying device for preparing calcium oxide according to claim 1, characterized in that: The solid-state drying structure includes a rotary barrel and a motor. The rotary barrel is filled with desiccant. One end of the rotary barrel is connected to the feed pipe, and the other end is connected to the connecting pipe. The connecting ends of the rotary barrel and the connecting pipe are provided with chamfers. The rotary barrel is provided with rotating joints at the connections with the feed pipe and the connecting pipe respectively. A circle of driven racks is provided on the side wall of the rotary barrel. The driven racks are connected to the driving gear on the motor. The motor is installed in the device body through a bracket.

3. A drying device for preparing calcium oxide according to claim 2, characterized in that: The gaseous drying structure includes a compressor and a drying chamber, one end of the drying chamber is connected to the connecting pipe, and the other end is connected to the discharge port. The drying chamber is arranged in the equipment body, and the compressor is installed on the outer wall of the equipment body. The compressor is connected to the drying chamber through a one-way valve.

4. A drying device for preparing calcium oxide according to claim 3, characterized in that: The compressor delivers an inert gas into the drying chamber.

5. A drying device for preparing calcium oxide according to claim 1, characterized in that: A storage box is arranged at the inner bottom of the device body, and a ventilation plate is arranged at the bottom of the storage box.

6. A drying device for preparing calcium oxide according to claim 5, characterized in that: The air permeable plate is provided with a plurality of air holes whose diameters are smaller than those of the calcium oxide particles.

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