A drying apparatus for preparing silica

Abstract

This utility model discloses a drying device for preparing silica, relating to the technical field of silica production equipment. It includes a drying chamber with a support ring fixedly mounted on the bottom of its outer wall, and a PLC controller fixedly mounted on the front of the support ring. By configuring the PLC controller, solenoid valves, and a temperature sensor, the PLC controller presets parameters such as the required drying temperature and time before drying the silica particles. During the drying process, the temperature sensor monitors the temperature inside the drying chamber in real time and transmits the monitoring results to the PLC controller. The PLC controller automatically calculates the temperature deviation based on the preset temperature range and adjusts the hot air flow by controlling the opening of the solenoid valve, thereby achieving precise temperature control. This not only helps reduce the risk of excessive removal of surface hydroxyl groups or particle sintering due to localized high temperatures in silica, but also effectively reduces the possibility of incomplete moisture evaporation due to excessively low temperatures in the silica particles.

Description

Technical Field

[0001] This utility model relates to the technical field of silica production equipment, specifically a drying device for silica preparation. Background Technology

[0002] The preparation of silica introduces a significant amount of moisture, making drying an essential and crucial step in the process. Drying equipment for silica preparation efficiently removes moisture from the silica filter cake or slurry to the target moisture content through heat transfer, while avoiding negative impacts on product performance. The dried silica possesses suitable moisture content and physical properties, making it better suited for subsequent processing.

[0003] Chinese utility model patent CN222110928U discloses a spray drying device for precipitated silica processing, relating to the technical field of precipitated silica processing equipment. This utility model includes a drying cylinder, with a feeding atomizing mechanism on its upper side, an exhaust pipe fixedly installed on the side wall of the drying cylinder, a conical feeding pipe fixedly installed at the lower end of the drying cylinder, a support mechanism fixedly installed on the side wall of the drying cylinder, and a discharge control mechanism installed on the support mechanism. One side of the discharge control mechanism is located inside the conical feeding pipe. A hot air intake mechanism is installed on one side of the drying cylinder. A rotating shaft is rotatably installed on the drying cylinder, and a drive motor is installed on the upper side of the drying cylinder. This utility model further agitates and dissipates the internal moisture of the accumulated precipitated silica, thereby continuously maintaining the drying effect of hot air on the precipitated silica particles, further ensuring and improving the drying effect of the precipitated silica particles obtained after spray drying.

[0004] To dry silica granules, the aforementioned spray drying device for silica processing is equipped with an annular air inlet pipe, a connecting air inlet pipe, and an exhaust pipe. However, the aforementioned spray drying device for silica processing does not have the function of automatically adjusting the temperature inside the drying chamber. The silica drying process usually needs to be carried out within a precise temperature range. Manual adjustment is difficult to match the evaporation rate of the liquid material and environmental changes in real time, which may lead to the temperature inside the chamber being too high or too low, affecting the consistency and pass rate of silica granules. Utility Model Content

[0005] This invention provides a drying device for preparing silica to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying device for preparing silica, comprising a drying chamber, a support ring fixedly installed at the bottom of the outer wall of the drying chamber, a PLC controller fixedly installed on the front of the support ring, an annular air inlet pipe fixedly installed in the middle of the inner wall of the drying chamber, a connecting pipe fixedly installed on one side of the annular air inlet pipe, a solenoid valve installed inside the connecting pipe, a temperature sensor fixedly installed on one side of the inner wall of the drying chamber, an annular box fixedly installed at the top of the inner wall of the drying chamber, an atomizer fixedly installed at the bottom of the annular box, a feed pipe fixedly installed on one side of the top of the annular box, a motor fixedly installed in the middle of the top of the drying chamber, a rotating shaft fixedly installed on the output shaft of the motor, a connecting ring fixedly installed on the lower part of the outer wall of the rotating shaft, a toggle plate fixedly installed on one side of the connecting ring, a material receiving ring plate installed below the toggle plate, an auger fixedly installed at the bottom of the outer wall of the rotating shaft, and a maintenance plate movably installed on the lower part of the front of the drying chamber, with bolts movably installed at each of the four corners of the maintenance plate.

[0007] Furthermore, a conical tube is fixedly installed at the bottom of the drying oven.

[0008] Furthermore, an observation window is fixedly provided on the front side of the tapered tube.

[0009] Furthermore, a sealing plate is movably installed inside the bottom of the tapered tube.

[0010] Furthermore, a material receiving box is fixedly provided on the outside of the sealing plate.

[0011] Furthermore, the bottom of the material receiving box is fixedly connected to the telescopic end of the electric push rod.

[0012] Compared with the prior art, the present invention provides a drying device for preparing silica, which has the following advantages:

[0013] 1. This drying device for preparing silica utilizes a PLC controller, solenoid valves, and temperature sensors. The PLC controller presets parameters such as temperature and time for drying, and then precipitates the silica particles. During the drying process, the temperature sensors monitor the temperature inside the drying chamber in real time and transmit the monitoring results to the PLC controller. The PLC controller automatically calculates the temperature deviation based on the preset temperature range and adjusts the hot air flow by controlling the opening of the solenoid valve, thereby achieving precise temperature control. This not only helps reduce the risk of excessive removal of surface hydroxyl groups or particle sintering due to localized high temperatures, ensuring that its reinforcing properties or adsorption capacity meet standards, but also effectively reduces the possibility of incomplete moisture evaporation due to excessively low temperatures, strictly controlling the moisture content within the target range. This improves drying efficiency and effectiveness, significantly enhancing product quality.

[0014] 2. The drying device for preparing silica has a maintenance plate. The bolted maintenance plate can be quickly disassembled and assembled, which greatly facilitates the cleaning of residual particles on the agitator plate and the material support ring plate. This effectively reduces the risk of accumulation affecting subsequent drying efficiency or causing particle contamination, and also reduces maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view of the structure of this utility model;

[0017] Figure 3 This is a partial structural cross-sectional view of the drying oven of this utility model.

[0018] In the diagram: 1. Drying oven; 201. Support ring; 202. PLC controller; 203. Annular air inlet pipe; 204. Connecting pipe; 205. Solenoid valve; 206. Temperature sensor; 301. Annular box; 302. Atomizer; 303. Feed pipe; 304. Motor; 305. Rotating shaft; 306. Connecting ring; 307. Actuating plate; 308. Material receiving ring plate; 309. Screwdriver; 310. Inspection plate; 401. Conical tube; 402. Observation window; 403. Sealing plate; 404. Material receiving box; 405. Electric push rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model discloses a drying device for preparing silica, including a drying chamber 1. A support ring 201 is fixedly installed at the bottom of the outer wall of the drying chamber 1, and a PLC controller 202 is fixedly installed on the front of the support ring 201. An annular air inlet pipe 203 is fixedly installed in the middle of the inner wall of the drying chamber 1, and a connecting pipe 204 is fixedly installed on one side of the annular air inlet pipe 203. A solenoid valve 205 is installed inside the connecting pipe 204. A temperature sensor 206 is fixedly installed on one side of the inner wall of the drying chamber 1. An annular box 301 is fixedly installed at the top of the inner wall of the drying chamber 1, and a [missing information - likely a device name or design] is fixedly installed at the bottom of the annular box 301. The device includes an atomizer 302. A feed pipe 303 is fixedly installed on one side of the top of the annular box 301. A motor 304 is fixedly installed in the middle of the top of the drying chamber 1. A rotating shaft 305 is fixedly installed on the output shaft of the motor 304. A connecting ring 306 is fixedly installed on the lower part of the outer wall of the rotating shaft 305. A toggle plate 307 is fixedly installed on one side of the connecting ring 306. A material-bearing ring plate 308 is installed below the toggle plate 307. An auger 309 is fixedly installed at the bottom of the outer wall of the rotating shaft 305. A maintenance plate 310 is movably installed on the lower part of the front of the drying chamber 1. Bolts are movably installed at the four corners of the maintenance plate 310.

[0021] Specifically, a conical tube 401 is fixedly installed at the bottom of the drying oven 1.

[0022] In this implementation scheme, by setting a conical tube 401, the conical structure of the tube 401, which is wider at the top and narrower at the bottom, can guide and concentrate the dried silica particles, ensuring that the particles flow throughout the entire area and that the discharge is more thorough.

[0023] Specifically, an observation window 402 is fixedly provided on the front side of the tapered tube 401.

[0024] In this implementation plan, by setting up an observation window 402, staff can directly observe the accumulation of silica particles in the conical tube 401, which facilitates timely handling.

[0025] Specifically, a sealing plate 403 is movably provided inside the bottom of the tapered tube 401.

[0026] In this embodiment, by setting a conical tube 401 and a sealing plate 403, when the sealing plate 403 is fully inserted into the conical tube 401, it can effectively prevent high-temperature hot air or silica particles in the drying chamber 1 from leaking through the discharge port.

[0027] Specifically, a material receiving box 404 is fixedly provided on the outside of the sealing plate 403.

[0028] In this embodiment, by setting up a receiving box 404, the silica particles discharged from the conical tube 401 can be received when the sealing plate 403 is opened, thereby achieving the purpose of collecting silica particles.

[0029] Specifically, the bottom of the material receiving box 404 is fixedly connected to the telescopic end of the electric push rod 405.

[0030] In this embodiment, by setting up a material receiving box 404 and an electric push rod 405, the electric push rod 405 is driven by electrical energy, which can precisely control the stroke of the telescopic end, drive the material receiving box 404 to rise and fall smoothly in the vertical direction, and improve the material discharge control accuracy.

[0031] In operation, the required drying parameters such as temperature and time are preset via the PLC controller 202. Then, the silica slurry is fed into the annular chamber 301 through the feed pipe 303, and atomized and sprayed within the drying chamber 1 using the atomizer 302. Simultaneously, the solenoid valve 205 is opened, allowing hot air to enter the annular air inlet pipe 203 through the connecting pipe 204, thus uniformly drying the silica particles. The temperature sensor 206 monitors the temperature within the drying chamber 1 in real time and transmits the monitoring results to the PLC controller 202. The PLC controller 202 automatically calculates the temperature deviation based on the preset temperature range and adjusts the hot air flow by controlling the opening of the solenoid valve 205, thereby achieving precise temperature control. After the dried silica particles fall onto the receiving ring plate 308, the motor 304 is started. The output shaft of the motor 304 drives the rotating shaft 305 to rotate, causing the connecting ring 306 and the actuating plate 307 to rotate accordingly, achieving actuation. The purpose of precipitating silica particles on the receiving ring plate 308 is to allow them to be dried again by hot air. Subsequently, the silica particles fall into the conical tube 401 through the micro-feeding hole and are turned upwards by the rotating auger blades 309, facilitating further drying. Once the conical tube 401 is full, observed through the observation window 402, the electric push rod 405 is activated. The telescopic end of the electric push rod 405 moves the receiving box 404 downwards, and the sealing plate 403 follows suit. Remove the conical tube 401. The dried silica granules inside the conical tube 401 are collected in the receiving box 404. When it is necessary to clean or maintain the actuating plate 307 and the receiving ring plate 308, turn the knob bolt to release the limit on the inspection plate 310, and then remove the inspection plate 310 to complete the disassembly of the inspection plate 310. The reverse operation can be used to install it, which realizes the quick disassembly and assembly of the inspection plate 310, making it convenient for staff to clean or maintain the actuating plate 307 and the receiving ring plate 308.

[0032] In summary, this drying apparatus for preparing silica utilizes a PLC controller 202, a solenoid valve 205, and a temperature sensor 206. The PLC controller 202 presets the required drying parameters, such as temperature and time, and then dries the silica particles. During the drying process, the temperature sensor 206 monitors the temperature inside the drying chamber 1 in real time and transmits the monitoring results to the PLC controller 202. The PLC controller 202 automatically calculates the temperature deviation based on the preset temperature range and adjusts the hot air flow by controlling the opening of the solenoid valve 205, thereby achieving precise temperature control. This not only helps reduce the risk of localized high temperatures in the silica but also... The high temperature reduces the risk of excessive removal of surface hydroxyl groups or particle sintering, ensuring that its reinforcing performance or adsorption capacity meets the standards. It also effectively reduces the possibility of incomplete moisture evaporation of silica particles due to excessively low temperature, strictly controlling the moisture content within the target range, thereby improving the drying efficiency and effect, and greatly improving product quality. By setting up the inspection plate 310, the bolted inspection plate 310 can be quickly disassembled and assembled, which provides great convenience for staff to clean residual particles on the agitator plate 307 and the material receiving ring plate 308, effectively reducing the risk of accumulation affecting subsequent drying efficiency or causing particle contamination, while also reducing maintenance costs.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying apparatus for preparing silica, comprising a drying chamber, characterized in that: A support ring is fixedly installed at the bottom of the outer wall of the drying chamber, and a PLC controller is fixedly installed on the front of the support ring. An annular air inlet pipe is fixedly installed in the middle of the inner wall of the drying chamber, and a connecting pipe is fixedly installed on one side of the annular air inlet pipe. A solenoid valve is installed inside the connecting pipe. A temperature sensor is fixedly installed on one side of the inner wall of the drying chamber. An annular box is fixedly installed at the top of the inner wall of the drying chamber, and an atomizer is fixedly installed at the bottom of the annular box. A feed pipe is fixedly installed on one side of the top of the annular box. A motor is fixedly installed in the middle of the top of the drying chamber, and a rotating shaft is fixedly installed on the output shaft of the motor. A connecting ring is fixedly installed on the lower part of the outer wall of the rotating shaft, and a toggle plate is fixedly installed on one side of the connecting ring. A material-bearing ring plate is installed below the toggle plate. An auger is fixedly installed at the bottom of the outer wall of the rotating shaft. A maintenance plate is movably installed on the lower part of the front of the drying chamber, and bolts are movably installed at the four corners of the maintenance plate.

2. The drying apparatus for preparing silica according to claim 1, characterized in that: A conical tube is fixedly installed at the bottom of the drying oven.

3. The drying apparatus for preparing silica according to claim 2, characterized in that: An observation window is fixedly provided on the front of the tapered tube.

4. The drying apparatus for preparing silica according to claim 2, characterized in that: A sealing plate is movably installed inside the bottom of the tapered tube.

5. The drying apparatus for preparing silica according to claim 4, characterized in that: A material receiving box is fixedly installed on the outside of the sealing plate.

6. The drying apparatus for preparing silica according to claim 5, characterized in that: The bottom of the material receiving box is fixedly connected to the telescopic end of the electric push rod.

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