Steam powder feeding device for preparing titanium dioxide in laboratory

Abstract

The utility model belongs to the technical field of titanium dioxide production, and particularly relates to a steam powder feeding device for preparing titanium dioxide in a laboratory, which comprises a steam powder machine, a titanium dioxide feeding bottle, a titanium dioxide conveying belt, a titanium dioxide feeding hopper, an organic reagent feeding bottle and a first steam or compressed air conveying pipe, an opening is formed in the bottom of the titanium dioxide feeding bottle and faces the titanium dioxide conveying belt, the tail end of the titanium dioxide conveying belt faces the titanium dioxide feeding hopper, and the tail end of the titanium dioxide feeding hopper is connected with the gas powder machine. The organic reagent feeding bottle is in angular connection with the first steam or compressed air conveying pipe, and the tail end of the first steam or compressed air conveying pipe is connected with the gas powder machine. The device disclosed by the utility model can simulate a production field, and titanium dioxide particles to be crushed and an organic treating agent are uniformly and stably added into the gas powder machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of titanium dioxide production, and particularly relates to a steam-powder feeding device for preparing titanium dioxide in a laboratory. Background Art

[0002] Titanium dioxide, scientifically known as titanium dioxide (TiO2), is a white pigment with the widest and most effective applications, primarily in coatings, plastics, inks, and papermaking. Air-powdering is a key step in titanium dioxide production. Titanium dioxide particles and an organic treatment agent are added to an air-powdering machine for pulverization and organic coating, followed by collection in a bag to produce titanium dioxide. Pulverization aims to fully deagglomerate the titanium dioxide particles, minimizing their presence as single particles as possible. However, the pulverized titanium dioxide particles are small, typically averaging around 200-350 nm, with a large surface area and surface hydroxyl groups. This makes them prone to agglomeration and moisture absorption, hindering their dispersion in downstream applications and thus affecting their pigmentary and application properties. Organic coating involves coating the titanium dioxide particles with an organic treatment agent to prevent agglomeration and moisture absorption after deagglomeration, thereby improving the application properties of titanium dioxide. Laboratory titanium dioxide production is limited, and the challenge lies in simulating a production site by metering and evenly and stably adding the pulverized titanium dioxide particles and the organic treatment agent to the air-powdering machine for pulverization and organic coating. Therefore, it is necessary to design a device that can simulate the production site, measure the titanium dioxide particles to be crushed and the organic treatment agent, and add them evenly and stably into the gas powder machine for crushing and organic coating. Utility Model Content

[0003] In view of this, the technical problem to be solved by the present invention is to provide a gas-powder feeding device for laboratory titanium dioxide preparation, which can simulate the production site and can evenly and stably add the titanium dioxide particles to be crushed and the organic treatment agent into the gas-powder machine.

[0004] The utility model provides a steam powder feeding device for preparing titanium dioxide in a laboratory, comprising a steam powder machine, a titanium dioxide feeding bottle, a titanium dioxide conveyor belt, a titanium dioxide feeding hopper, an organic reagent feeding bottle and a first steam compressed air conveying pipe;

[0005] The bottom of the titanium dioxide feeding bottle is provided with an opening facing the titanium dioxide conveyor belt, the end of the titanium dioxide conveyor belt faces the titanium dioxide feeding hopper, and the end of the titanium dioxide feeding hopper is connected to the gas powder machine;

[0006] The organic reagent feeding bottle is connected to the first steam compressed air delivery pipe at an angle, and the end of the first steam compressed air delivery pipe is connected to the gas powder machine.

[0007] In some embodiments, a titanium dioxide discharge switch is provided at the bottom of the titanium dioxide feeding bottle, and the opening is provided downstream of the titanium dioxide discharge switch.

[0008] In some embodiments, the titanium dioxide feeding bottle is inverted, the bottle body is cylindrical, the bottom includes a funnel-shaped cavity, and the bottle body is provided with a volume scale reading line.

[0009] In some embodiments, the cavity includes a material receiving cavity and a neck cavity arranged downstream of the material receiving cavity, the titanium dioxide discharge switch is arranged on the neck cavity, and the titanium dioxide discharge switch includes a manual or automatic discharge valve.

[0010] In some embodiments, the titanium dioxide discharge switch includes a first flow monitoring sensor, a first automatic discharge valve, and a first electromagnetic switch. The first flow monitoring sensor and the first automatic discharge valve are arranged on the inner side of the bottom of the titanium dioxide feeding bottle, the first automatic discharge valve is arranged downstream of the first flow monitoring sensor, and the first electromagnetic switch is arranged on the outside of the titanium dioxide feeding bottle. The first flow monitoring sensor and the first automatic discharge valve are both connected to the first electromagnetic switch through a first transmission wire.

[0011] In some embodiments, the titanium dioxide conveyor belt includes a roller shaft, a driving mechanism, and a gear-type crawler covered on the outside of the roller shaft and driven by the roller shaft, and one end of the roller shaft is connected to the driving mechanism.

[0012] In some embodiments, the device further comprises a second steam compressed air delivery pipe, the end of the titanium dioxide feed hopper is connected to the second steam compressed air delivery pipe, and the second steam compressed air delivery pipe is connected to the gas powder machine.

[0013] In some embodiments, the organic reagent feeding bottle is placed upside down, and the bottle body is cylindrical with a volume scale reading line;

[0014] The bottom end of the organic reagent feeding bottle is connected to an organic reagent delivery pipe, the organic reagent delivery pipe is connected to the first steam compressed air delivery pipe at an angle, and an organic reagent discharge switch is provided inside the organic reagent delivery pipe.

[0015] In some embodiments, the organic reagent discharge switch includes a second flow monitoring sensor, a second automatic discharge valve and a second electromagnetic switch. The second flow monitoring sensor and the second automatic discharge valve are arranged on the inside of the organic reagent delivery pipe, the second automatic discharge valve is arranged downstream of the second flow monitoring sensor, and the second electromagnetic switch is arranged on the outside of the organic reagent feed bottle. The second flow monitoring sensor and the second automatic discharge valve are both connected to the second electromagnetic switch through a second transmission wire.

[0016] In some embodiments, a multi-hole nozzle is provided at the end of the organic reagent delivery tube.

[0017] The beneficial effects of the present invention include at least:

[0018] The utility model can simulate the production site, and uniformly and stably add the titanium dioxide particles to be crushed and the organic treatment agent into the gas powder machine, so as to ensure that the prepared titanium dioxide has good pigment and application performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Shown is a schematic structural diagram of a steam-powder feeding device for preparing titanium dioxide in a laboratory in some embodiments of the present invention.

[0021] Description of Reference Numerals

[0022] 1. Titanium dioxide feed bottle; 2. Titanium dioxide discharge switch; 3. Titanium dioxide conveyor belt; 4. Titanium dioxide feed hopper; 5. Organic reagent feed bottle; 6. Organic reagent discharge switch; 7. Multi-hole nozzle; 8. Gas powder machine; 9. First steam compressed air delivery pipe; 10. Second steam compressed air delivery pipe; 11. Organic reagent delivery pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. Subsequent embodiments will not explain this one by one.

[0025] like Figure 1 As shown, the utility model provides a gas powder feeding device for preparing titanium dioxide in a laboratory, comprising a gas powder machine 8, a titanium dioxide feeding bottle 1, a titanium dioxide conveyor belt 3, a titanium dioxide feeding hopper 4, an organic reagent feeding bottle 5 and a first steam compressed air conveying pipe 9;

[0026] The bottom of the titanium dioxide feeding bottle 1 is provided with an opening facing the titanium dioxide conveyor belt 3, the end of the titanium dioxide conveyor belt 3 faces the titanium dioxide feeding hopper 4, and the end of the titanium dioxide feeding hopper 4 is connected to the gas powder machine 8;

[0027] The organic reagent feed bottle 5 is connected to a first steam compressed air conveying pipe 9 at an angle (the angle along the direction of organic reagent flow is less than 90 degrees), and the end of the first steam compressed air conveying pipe 9 is connected to the gas pulverizer 8. The gas pulverizer 8, a titanium dioxide feeding mechanism (including the titanium dioxide feed bottle 1, the titanium dioxide conveyor belt 3, and the titanium dioxide feed hopper 4), and the organic reagent feeding mechanism (including the organic reagent feed bottle 5 and the first steam compressed air conveying pipe 9) achieve precise material proportioning and efficient mixing. This simulates a production site, accurately metering and evenly and stably adding the titanium dioxide particles to be crushed and the organic treatment agent to the gas pulverizer 8, ensuring that the prepared titanium dioxide has excellent pigment and application properties. When the gas pulverizer 8 is in operation, a negative pressure is generated inside, which automatically draws titanium dioxide from the titanium dioxide feed hopper 4, completing the stirring and crushing process within the gas pulverizer 8.

[0028] To increase operational flexibility and accuracy, in some embodiments, a titanium dioxide discharge switch 2 is provided at the bottom of the titanium dioxide feeding bottle 1, and the opening is provided downstream of the titanium dioxide discharge switch 2. This enables instant control of titanium dioxide release, enhances operational flexibility and accuracy, and reduces raw material waste.

[0029] In some embodiments, the titanium dioxide feed bottle 1 is inverted after being loaded with titanium dioxide. The bottle body is cylindrical, with a funnel-shaped cavity at the bottom and a volume scale reading line provided on the bottle body. By observing the changes in the volume scale, the flow rate of titanium dioxide can be accurately calculated, making the estimation of the feed amount more intuitive and accurate.

[0030] In some embodiments, the chamber includes a receiving chamber and a neck chamber downstream of the receiving chamber. The titanium dioxide discharge switch 2 is disposed in the neck chamber and comprises a manual or automatic discharge valve. The titanium dioxide feed flow rate is assessed by using a volumetric reading line provided on the body of the titanium dioxide feed bottle 1. The titanium dioxide discharge switch 2 is then manually or automatically adjusted to control the flow rate of titanium dioxide entering the aerator 8, enabling more flexible operation.

[0031] Automatic detection and automatic adjustment of the titanium dioxide injection volume can also be achieved. In some embodiments, the titanium dioxide discharge switch 2 includes a first flow monitoring sensor, a first automatic discharge valve, and a first electromagnetic switch. The first flow monitoring sensor and the first automatic discharge valve are arranged on the inner side of the bottom of the titanium dioxide feeding bottle 1, the first automatic discharge valve is arranged downstream of the first flow monitoring sensor, and the first electromagnetic switch is arranged on the outside of the titanium dioxide feeding bottle 1. The first flow monitoring sensor and the first automatic discharge valve are both connected to the first electromagnetic switch through a first transmission wire.

[0032] The first flow monitoring sensor can be a conventional powder flow meter. Its operating principle is based on a resonant frequency measurement method. It primarily consists of a vibrating tube, a drive electrode, a monitoring electrode, and a controller. The vibrating tube, the core component of the powder flow meter, consists of a circularly curved elastic tube and a piezoelectric ceramic disc. The curved elastic tube vibrates under pressure, while the piezoelectric ceramic disc controls the vibration using a control signal. When material flows through the vibrating tube, it affects the tube's resonant frequency, which in turn affects the tube's vibration. The controller measures the tube's vibration via the monitoring electrode and calculates the material flow rate based on this information. This measurement method offers advantages such as high accuracy and fast response. The controller, another key component of the powder flow meter, is responsible for monitoring the vibration of the vibrating tube and calculating the material flow rate based on the measurement results. The controller can output a variety of signals, such as analog and digital, depending on the actual application needs, facilitating data processing and display. For example, a conventional online talc pipeline monitoring meter can be used. The utility model adopts an automated titanium dioxide feeding design, realizes intelligent monitoring and automatic adjustment of the titanium dioxide feeding process, significantly improves feeding accuracy and response speed, and reduces the burden of manual operation.

[0033] In some embodiments, the titanium dioxide conveyor belt 3 includes a roller, a drive mechanism, and a geared track wrapped around the roller and driven by the roller. One end of the roller is connected to the drive mechanism. The geared track in this utility model provides excellent stability, helps maintain a clean working environment, and reduces material waste. Furthermore, the geared track ensures uniform and stable feeding of titanium dioxide particles without bridging or clogging.

[0034] In some embodiments, the apparatus further includes a second steam compressed air delivery pipe 10, the end of the titanium dioxide feed hopper 4 being connected to the second steam compressed air delivery pipe 10, which is in turn connected to the gas powder machine 8. The specific angled connection between the second steam compressed air delivery pipe 10 and the titanium dioxide feed hopper 4 of the present invention (the angle along the titanium dioxide flow direction is less than 90 degrees) optimizes the efficiency of powder introduction, prevents titanium dioxide backflow, reduces the risk of blockage, and enhances the fluidity of the entire system.

[0035] In order to flexibly control the feeding amount of the organic reagent feeding bottle 5, in some embodiments, the organic reagent feeding bottle 5 is placed upside down after the organic reagent is loaded, and the bottle body is cylindrical with a volume scale reading line;

[0036] The bottom end of the organic reagent feed bottle 5 is connected to an organic reagent delivery tube 11, which is connected to the first steam compressed air delivery tube 9 at an angle (the angle along the flow direction of the titanium dioxide is less than 90 degrees). An organic reagent discharge switch 6 is disposed inside the organic reagent delivery tube 11. In some embodiments, the organic reagent discharge switch 6 includes a second flow monitoring sensor, a second automatic discharge valve, and a second electromagnetic switch. The second flow monitoring sensor and the second automatic discharge valve are disposed in the middle of the inner side of the organic reagent delivery tube 11, the second automatic discharge valve is disposed downstream of the second flow monitoring sensor, and the second electromagnetic switch is disposed outside the organic reagent feed bottle 5. The second flow monitoring sensor and the second automatic discharge valve are both connected to the second electromagnetic switch via a second transmission line. The second flow monitoring sensor can be a liquid flow sensor known in the art.

[0037] In some embodiments, the first automatic discharging valve and the second automatic discharging valve can flexibly adjust the valve size, so as to more accurately control the material flow.

[0038] In some embodiments, the first flow monitoring sensor, the first automatic discharging valve, the second flow monitoring sensor, the second automatic discharging valve, the first electromagnetic switch, the second electromagnetic switch, and the driving device are all connected to the controller through wires. The controller is provided with a PLC control system, which can control the opening and closing size of the first automatic discharging valve according to the powder flow data detected by the first flow monitoring sensor, and at the same time can control the opening and closing size of the second automatic discharging valve through the second flow monitoring sensor. In addition, it can also comprehensively determine whether to disconnect the first electromagnetic switch and the second electromagnetic switch based on the data of the first flow monitoring sensor and the second flow monitoring sensor, and determine whether to shut down the driving device based on the overall situation of the device, so that the solid line can achieve more precise automatic feeding.

[0039] In some embodiments, a multi-hole nozzle 7 is provided at the end of the organic reagent delivery tube 11 .

[0040] The purpose of setting the porous nozzle in the utility model is to make the organic reagent uniformly atomized. When the organic reagent is fed into the powder machine 8 by the steam or compressed air in the first steam compressed air delivery pipe 9, the contact area with titanium dioxide and the reaction efficiency can be enhanced, thereby improving product quality.

[0041] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A steam powder feeding device for preparing titanium dioxide in a laboratory, characterized in that: It includes a gas powder machine (8), a titanium dioxide feeding bottle (1), a titanium dioxide conveyor belt (3), a titanium dioxide feeding hopper (4), an organic reagent feeding bottle (5) and a first steam compressed air conveying pipe (9); The titanium dioxide feeding bottle (1) is provided with an opening at the bottom thereof, which faces the titanium dioxide conveyor belt (3); the end of the titanium dioxide conveyor belt (3) faces the titanium dioxide feeding hopper (4); and the end of the titanium dioxide feeding hopper (4) is connected to the gas powder machine (8); The organic reagent feed bottle (5) is connected to the first steam compressed air delivery pipe (9) at an angle, and the end of the first steam compressed air delivery pipe (9) is connected to the gas powder machine (8); The device further comprises a second steam compressed air delivery pipe (10), the end of the titanium dioxide feed hopper (4) is connected to the second steam compressed air delivery pipe (10), and the second steam compressed air delivery pipe (10) is connected to the gas powder machine (8).

2. The steam-powder feeding device for preparing titanium dioxide in a laboratory according to claim 1, characterized in that: A titanium dioxide discharge switch (2) is provided at the bottom of the titanium dioxide feeding bottle (1), and the opening is provided downstream of the titanium dioxide discharge switch (2).

3. The steam-powder feeding device for preparing titanium dioxide in a laboratory according to claim 2, characterized in that: The titanium dioxide feeding bottle (1) is inverted, and its bottle body is cylindrical, and the bottom includes a funnel-shaped cavity, and the bottle body is provided with a volume scale reading line.

4. The steam-powder feeding device for preparing titanium dioxide in a laboratory according to claim 3, characterized in that: The cavity comprises a material receiving cavity and a neck cavity arranged downstream of the material receiving cavity, the titanium dioxide discharge switch (2) is arranged on the neck cavity, and the titanium dioxide discharge switch (2) comprises a manual or automatic discharge valve.

5. The steam-powder feeding device for preparing titanium dioxide in a laboratory according to claim 4, characterized in that: The titanium dioxide discharge switch (2) includes a first flow monitoring sensor, a first automatic discharge valve, and a first electromagnetic switch. The first flow monitoring sensor and the first automatic discharge valve are arranged on the inner side of the bottom of the titanium dioxide feeding bottle (1), the first automatic discharge valve is arranged downstream of the first flow monitoring sensor, and the first electromagnetic switch is arranged on the outer side of the titanium dioxide feeding bottle (1). The first flow monitoring sensor and the first automatic discharge valve are both connected to the first electromagnetic switch via a first transmission wire.

6. The steam-powder feeding device for preparing titanium dioxide in a laboratory according to claim 1, characterized in that: The titanium dioxide conveyor belt (3) comprises a roller shaft, a driving mechanism, and a gear-type crawler covered on the outside of the roller shaft and driven by the roller shaft, and one end of the roller shaft is connected to the driving mechanism.

7. The steam-powder feeding device for preparing titanium dioxide in a laboratory according to claim 1, characterized in that: The organic reagent feed bottle (5) is inverted and has a cylindrical body with a volume scale reading line; The bottom end of the organic reagent feeding bottle (5) is connected to an organic reagent delivery pipe (11), the organic reagent delivery pipe (11) is connected to the first steam compressed air delivery pipe (9) at an angle, and an organic reagent discharge switch (6) is provided inside the organic reagent delivery pipe (11).

8. The steam-powder feeding device for preparing laboratory titanium dioxide according to claim 7, characterized in that: The organic reagent discharge switch (6) includes a second flow monitoring sensor, a second automatic discharge valve and a second electromagnetic switch. The second flow monitoring sensor and the second automatic discharge valve are arranged on the inner side of the organic reagent delivery pipe (11). The second automatic discharge valve is arranged downstream of the second flow monitoring sensor. The second electromagnetic switch is arranged on the outer side of the organic reagent feed bottle (5). The second flow monitoring sensor and the second automatic discharge valve are both connected to the second electromagnetic switch via a second transmission wire.

9. The steam-powder feeding device for preparing titanium dioxide in a laboratory according to claim 7, characterized in that: A multi-hole nozzle (7) is provided at the end of the organic reagent delivery pipe (11).

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