Calcium hydroxide drying equipment
By using a screen and a vibrating motor to separate particles in a calcium hydroxide drying equipment, and by utilizing an inclined drying plate and an electric heating wire for uniform drying, the problem of uneven drying of calcium hydroxide particles is solved, achieving a more efficient drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO LINWEI POWDER EQUIP CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-08
AI Technical Summary
Moist calcium hydroxide granules dry unevenly due to differences in particle size, especially the central part of large particles, which is difficult to dry completely.
A calcium hydroxide drying device was designed, which uses a feeding hopper with a screen and a vibrating motor to separate particles by size, and then uses an inclined drying plate and an electric heating wire to dry them evenly. The vibrating motor breaks down large particles into smaller particles, which are then dried by passing them through the screen and the electric heating wire.
This improves the drying uniformity and efficiency of calcium hydroxide granules, ensuring that all granules dry evenly and avoiding moisture residue in the center of large granules.
Smart Images

Figure CN224215767U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calcium hydroxide production technology, and in particular to a calcium hydroxide drying device. Background Technology
[0002] The preparation method of calcium hydroxide powder is as follows: limestone is calcined into calcium oxide, which is then carefully selected and digested with water in a certain proportion. The calcium hydroxide production liquid is purified, separated and stored as residue, then centrifuged and dehydrated, and dried at 150-300℃ to form calcium hydroxide raw material. Then, it is made into calcium hydroxide powder by a powder making machine.
[0003] Because the size of wet calcium hydroxide particles varies greatly, it is easy for small calcium hydroxide particles to reach the drying requirements, while the center of large calcium hydroxide particles remains wet, resulting in uneven drying. Utility Model Content
[0004] The purpose of this invention is to overcome the above-mentioned problems in the existing technology and provide a calcium hydroxide drying device.
[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:
[0006] A calcium hydroxide drying device includes a drying chamber, a feeding hopper with a screen installed on the top of the drying chamber, a vibrating motor installed in the feeding hopper, and a calcium hydroxide inlet connected to the feeding hopper on the top of the drying chamber. Multiple sets of drying plates are installed in the drying chamber, arranged alternately from top to bottom and left to right. Each drying plate is equipped with an electric heating wire for drying calcium hydroxide, and the drying plates are inclined, with the lower opening of one set of drying plates facing upwards towards the upper opening of the adjacent drying plate below it.
[0007] The feeding hopper includes a hopper body, an inner guide plate in the shape of a doorway, two parallel support rods, and a semi-circular screen. The inner guide plate is welded into the hopper body, and a vertically penetrating discharge channel is formed between the two sides of the inner guide plate and the inner side of the hopper body. The two discharge channels are located directly above the calcium hydroxide inlet. The two support rods are welded to the lower part of the inner guide plate, and the screen is welded into the hopper body above the inner guide plate.
[0008] The hopper body has a door-shaped hole at each of its front and rear ends, and the inner guide plate is connected to the two door-shaped holes.
[0009] A motor mounting plate is installed on one of the two support rods, and the vibration motor is mounted on the motor mounting plate.
[0010] The drying plate includes a connecting plate, a front panel, and a bottom plate. The connecting plate is fixed to one end of the front panel and is installed and fixed inside the drying oven with screws. The bottom plate is installed at the bottom end of the front panel with screws.
[0011] The panel has a serpentine upper receiving groove at its bottom end and a serpentine lower receiving groove at its top end. The electric heating wire is installed in the upper and lower receiving grooves.
[0012] The panel has a tilt angle of 10° and the angle between the panel and the connecting plate is 80°.
[0013] The drying oven is equipped with a support frame, and a shock-absorbing block is installed at the bottom of the support frame.
[0014] The beneficial effects of this utility model are as follows: A screen is set in the feeding hopper, and a vibrating motor is installed in the feeding hopper. Moist calcium hydroxide particles are loaded into the feeding hopper. Small calcium hydroxide particles fall directly through the screen onto the drying plate, while large calcium hydroxide particles are decomposed into smaller calcium hydroxide particles by the vibration of the vibrating motor and then fall through the screen onto the drying plate. The electric heating wire heats the drying plate, thereby drying the calcium hydroxide particles rolling along the surface of the drying plate. During the rolling process, the dried calcium hydroxide powder on the surface is peeled off, which is beneficial to the internal drying of calcium hydroxide and improves the uniformity and efficiency of the drying of calcium hydroxide particles. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the calcium hydroxide drying equipment in this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the front end of the drying box of the calcium hydroxide drying equipment in this utility model after disassembly.
[0018] Figure 3 This is a schematic diagram of the structure of the drying oven in this utility model;
[0019] Figure 4 This is a schematic diagram of the hopper after it has been cut open in this utility model;
[0020] Figure 5 This is a structural schematic diagram of the drying plate after disassembly in this utility model from a first-view perspective;
[0021] Figure 6This is a structural schematic diagram of the drying plate after disassembly in this utility model from a second perspective;
[0022] The following are the labels in the diagram: Drying oven 1, calcium hydroxide inlet 11, feeding hopper 2, hopper body 21, door-shaped hole 211, inner guide plate 22, support rod 23, screen 24, discharge channel 25, motor mounting plate 26, vibrating motor 3, drying plate 4, connecting plate 41, panel 42, upper receiving tank 421, bottom plate 43, lower receiving tank 431, electric heating wire 5, support frame 6, shock absorber 7. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] like Figures 1 to 6 As shown, a calcium hydroxide drying device includes a drying chamber 1, a feeding hopper 2 with a screen installed on the top of the drying chamber 1, and a calcium hydroxide inlet 11 connected to the feeding hopper 2 on the top of the drying chamber 1.
[0025] The feeding hopper 2 includes a hopper body 21, an inner guide plate 22 in the shape of a doorway, two parallel support rods 23, and a semi-circular screen 24. The inner guide plate 22 is welded into the hopper body 21. A vertically penetrating discharge channel 25 is formed between the two sides of the inner guide plate 22 and the inner side of the hopper body 21. The two discharge channels 25 are located directly above the calcium hydroxide inlet 11. The two support rods 23 are welded to the lower part of the inner guide plate 22, and the screen 24 is welded into the hopper body 21 above the inner guide plate 22.
[0026] A vibrating motor 3 is installed in the feeding hopper 2. Specifically, a motor mounting plate 26 is installed on the two support rods 23, and the vibrating motor 3 is installed on the motor mounting plate 26.
[0027] A door-shaped hole 211 is opened at both the front and rear ends of the hopper body 21. The inner guide plate 22 is connected to the two door-shaped holes 211 so as to facilitate the installation of the vibration motor 3 into the inner guide plate 22.
[0028] The drying chamber 1 is equipped with multiple sets of drying plates 4 arranged alternately from top to bottom and left to right. The drying plates 4 are set at an angle, with the lower opening of one set of drying plates 4 facing the upper opening of the adjacent drying plate 4 below it.
[0029] Specifically, the drying plate 4 includes a connecting plate 41, a panel 42, and a bottom plate 43. The panel 42 has an inclination angle of 10°. The connecting plate 41 is fixed to one end of the panel 42, and the included angle between the panel 42 and the connecting plate 41 is 80°. The connecting plate 41 is installed and fixed to the inside of the drying oven 1 with screws. The bottom plate 43 is installed at the bottom end of the panel 42 with screws.
[0030] The drying plate 4 is equipped with an electric heating wire 5 for drying calcium hydroxide. Specifically, the bottom of the panel 42 has a serpentine upper receiving groove 421, and the top of the bottom plate 43 has a serpentine lower receiving groove 431. The electric heating wire 5 is installed in the upper receiving groove 421 and the lower receiving groove 431. A wire hole is provided on the side wall of the drying chamber 1 for the power cord of the heating wire 5 to pass through.
[0031] A support frame 6 is installed outside the drying oven 1. A shock-absorbing block 7 is installed at the bottom of the support frame 6 to reduce the transmission of vibration waves to the ground, thereby reducing the vibration of the workshop.
[0032] A screen 24 is set in the feeding hopper 2, and a vibrating motor 3 is installed in the feeding hopper 2. Wet calcium hydroxide particles are loaded into the feeding hopper 2. Small calcium hydroxide particles fall directly onto the drying plate through the screen, while large calcium hydroxide particles are decomposed into small calcium hydroxide particles by the vibration of the vibrating motor and then fall onto the drying plate through the screen.
[0033] The electric heating wire 5 is energized to heat the drying plate 4, thereby drying the calcium hydroxide particles rolling along the upper surface of the drying plate 4. During the rolling process of the calcium hydroxide particles, the already dried calcium hydroxide powder on the surface is peeled off, which is beneficial to the internal drying of calcium hydroxide and improves the uniformity and efficiency of the drying of calcium hydroxide particles.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A calcium hydroxide drying device, characterized in that: The device includes a drying chamber, the top of which is equipped with a feeding hopper with a screen. A vibrating motor is installed in the feeding hopper. The top of the drying chamber has a calcium hydroxide inlet connected to the feeding hopper. The drying chamber is equipped with multiple sets of drying plates arranged alternately from top to bottom and left to right. Each drying plate is equipped with an electric heating wire for drying calcium hydroxide. The drying plates are inclined, with the lower opening of one set of drying plates facing upwards towards the upper opening of the adjacent drying plate below it.
2. The calcium hydroxide drying equipment according to claim 1, characterized in that: The feeding hopper includes a hopper body, an arch-shaped inner guide plate, two parallel support rods, and a semi-circular screen. The inner guide plate is welded into the hopper body, and a vertically penetrating discharge channel is formed between the two sides of the inner guide plate and the inner side of the hopper body. The two discharge channels are located directly above the calcium hydroxide inlet. The two support rods are welded to the lower part of the inner guide plate, and the screen is welded into the hopper body above the inner guide plate.
3. The calcium hydroxide drying equipment according to claim 2, characterized in that: The hopper body has a door-shaped hole at each of its front and rear ends, and the inner guide plate is connected to the two door-shaped holes.
4. The calcium hydroxide drying equipment according to claim 2, characterized in that: A motor mounting plate is installed on the two support rods, and the vibration motor is mounted on the motor mounting plate.
5. The calcium hydroxide drying equipment according to claim 1, characterized in that: The drying plate includes a connecting plate, a front panel, and a bottom plate. The connecting plate is fixed to one end of the front panel and is installed and fixed inside the drying oven with screws. The bottom plate is installed at the bottom end of the front panel with screws.
6. The calcium hydroxide drying equipment according to claim 5, characterized in that: The bottom of the panel has a serpentine upper receiving groove, and the top of the base plate has a serpentine lower receiving groove. The electric heating wire is installed in the upper receiving groove and the lower receiving groove.
7. The calcium hydroxide drying equipment according to claim 5, characterized in that: The panel has a tilt angle of 10° and the angle between the panel and the connecting plate is 80°.
8. The calcium hydroxide drying equipment according to claim 1, characterized in that: The drying oven is equipped with a support frame, and a shock-absorbing block is installed at the bottom of the support frame.