Nano barium sulfate drying device
By designing a nano-barium sulfate drying device, a dispersed motor and high-temperature hot airflow are used to disperse the nano-barium sulfate. Combined with a spiral separator and dust collector, the problem of hard agglomeration during the drying process of nano-barium sulfate is solved, achieving efficient drying and full recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-24
AI Technical Summary
Nano-barium sulfate is prone to hard agglomeration during the drying process, which leads to increased particle size and poor dispersibility, affecting its performance in practical applications. Existing technologies have not been able to effectively solve this problem.
A nano-barium sulfate drying device was designed, including a dryer, a spiral separator, and a bag filter. The device utilizes a dispersed motor and high-temperature hot airflow to disperse and dry the nano-barium sulfate, and combines the spiral separator and dust removal device to achieve particle separation and recovery.
It achieves rapid and efficient drying of nano-barium sulfate, avoids hard agglomeration, improves production efficiency, and enables full recovery of nano-barium sulfate with zero dust emissions.
Smart Images
Figure CN224034210U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of drying devices, specifically to a kind of nano barium sulfate drying device. BACKGROUND
[0002] Barium sulfate is widely used in plastics, coatings, rubber, papermaking, ink and medical industries. The consumption structure is: the proportion of coatings industry is 59.2%, the proportion of plastics industry is 10.5%, the proportion of paper industry is 5.3%, the proportion of rubber industry is 15.8%, and the proportion of ink industry is 9.2%. In the production process of various fields, nano barium sulfate is indispensable. The application of nano barium sulfate is directly related to its particle size, particle size distribution and dispersion degree: when its particle size reaches nanoscale, it is easier to stably and uniformly disperse in the carrier solvent; in addition, nano barium sulfate with narrow particle size distribution can ensure consistent filling effect due to its good uniformity.
[0003] In recent years, the domestic and foreign market is short of nano barium sulfate, and it is urgent to develop nano barium sulfate with small particle size and narrow distribution. Therefore, domestic and foreign scholars have conducted a lot of research on the preparation of nano barium sulfate, but the problem of hard agglomeration in the drying process has not been solved yet, and industrial production has not been realized.
[0004] Nano barium sulfate has attracted attention due to its small particle size and large specific surface area, but its unique advantages also bring disadvantages such as high surface energy and thermodynamic instability. Wet nano barium sulfate contains a large amount of water, which leads to hard agglomeration and serious caking of nano barium sulfate during drying, losing the advantages of nanoscale, and seriously affecting the dispersion degree in the actual application process. SUMMARY
[0005] To solve the above problems, the utility model provides a kind of nano barium sulfate drying device, for the nano barium sulfate prepared to be dried, scattered, screened, and get nanoscale dry barium sulfate, the device includes dryer, screw separator and cloth bag dust collector;The dryer is connected with the screw separator through pipeline one, the screw separator is connected with the cloth bag dust collector through pipeline two, and the outlet of the cloth bag dust collector is connected with the fan and the chimney in turn.
[0006] The tank body of the dryer is installed with a dispersion motor at the top, the rotating shaft of the dispersion motor extends into the tank body of the dryer, and a frame-shaped disperser is arranged on the rotating shaft of the dispersion motor;One end of the horizontal plate of the disperser is connected with the rotating shaft of the dispersion motor, the other end of the horizontal plate is connected with the vertical plate, and there is a small gap between the vertical plate and the inner wall of the tank body of the dryer.
[0007] A feeder is arranged at the discharge port of the feeding hopper, and a spiral feeding reamer is arranged in the conveying pipe of the feeder;The discharge port of the feeder penetrates the upper tank wall of the dryer and extends above the disperser.
[0008] The feeder is preferably arranged in an inclined manner, with the discharge port being low, and the conveying pipe of the feeder being arranged at an angle of 10-20 degrees with the horizontal.
[0009] A filter cloth is arranged at the lower part of the dryer.
[0010] The hot air pipe is arranged to pass into the bottom of the dryer, and the branch pipe is connected to the hot air pipe and the annular pipe; the annular pipe is arranged at the lower part of the dryer and is arranged at the outer periphery of the dryer, and the pipe plane of the annular pipe is slightly higher than the plane of the filter cloth; one end of the radial pipe is connected to the annular pipe, and the other end of the radial pipe passes through the tank wall of the dryer horizontally and is inscribed in the inner wall of the tank.
[0011] According to the size of the diameter of the tank body of the dryer, 3-8 radial pipes are arranged, and the radial pipes are arranged uniformly and dispersedly, and preferably 6 radial pipes are arranged.
[0012] An adjusting valve is arranged on the branch pipe, and the adjusting valve is used to control the air speed of the radial pipe.
[0013] The beneficial effects of the utility model are as follows: the utility model utilizes high-temperature hot air flow to dry barium sulfate, and in the drying process, the agglomerated particles can be dispersed; by adjusting the flow speed of the high-temperature air flow and arranging a dust removal device, the dried nano barium sulfate particles can be carried out in time and separated and collected, the nano barium sulfate is fully recovered, and the tail gas is not discharged with dust. The device can quickly and efficiently dry the nano barium sulfate particles, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a structural schematic view of the utility model.
[0015] Fig. 2 It is a vertical sectional structure schematic view of the dryer of the utility model.
[0016] Fig. 3 It is a horizontal sectional structure schematic view of the dryer of the utility model at the annular pipe.
[0017] In the figure: 1 dryer; 1-2 motor, 1-21 disperser, 1-22 horizontal plate, vertical plate 1-23, 1-3 feeding hopper, 1-31 feeder, 1-4 filter cloth, 1-5 hot air pipe, 1-51 branch pipe, 1-52 annular pipe, 1-53 radial pipe, 1-54 adjusting valve; 2 spiral separator, 2-1 pipeline one; 3 bag-type dust collector, 3-1 pipeline two, 3-2 outlet. DETAILED DESCRIPTION
[0018] For example, Figs. 1-3As shown, the utility model provides a kind of nano barium sulfate drying device, including dryer 1, spiral separator 2 and cloth bag dust collector 3;Dryer 1 is connected by pipeline one 2-1 between spiral separator 2, spiral separator 2 is connected by pipeline two 3-1 between cloth bag dust collector 3, and the outlet 3-2 of cloth bag dust collector 3 is sequentially connected fan and chimney.
[0019] The tank top of dryer 1 is provided with a dispersion motor 1-2, the rotating shaft of the dispersion motor 1-2 extends into the tank of the dryer 1, and a frame-shaped disperser 1-21 is arranged on the rotating shaft of the dispersion motor 1-2; one end of a horizontal plate 1-22 of the disperser 1-21 is connected to the rotating shaft of the dispersion motor 1-2, the other end of the horizontal plate 1-22 is connected to a vertical plate 1-23, and there is a small gap between the vertical plate 1-23 and the inner wall of the tank of the dryer 1.
[0020] A feeder 1-31 is arranged at the discharge opening of the feeding hopper 1-3, and a spiral feeder reamer is arranged in the conveying pipe of the feeder 1-31; the discharge opening of the feeder 1-31 penetrates the upper tank wall of the dryer 1 and extends above the disperser 1-21.
[0021] The feeder 1-31 is preferably inclined, the discharge opening is low, and the conveying pipe of the feeder 1-31 forms an angle of 10° to 20° with the horizontal.
[0022] A filter cloth 1-4 is arranged at the lower part of the dryer 1.
[0023] A hot air pipe 1-5 is connected to the bottom of the dryer 1, a branch pipe 1-51 connects the hot air pipe 1-5 and an annular pipe 1-52; the annular pipe 1-52 is arranged at the periphery of the lower part of the dryer 1, and the pipe plane of the annular pipe 1-52 is slightly higher than the plane of the filter cloth 1-4; one end of a radial pipe 1-53 is connected to the annular pipe 1-52, and the other end penetrates the tank wall of the dryer 1 horizontally and is inscribed in the inner wall of the tank.
[0024] According to the size of the diameter of the tank of the dryer 1, 3 to 8 radial pipes 1-53 are arranged, which are evenly distributed, and 6 radial pipes 1-53 are preferably arranged.
[0025] An adjusting valve 1-54 is arranged on the branch pipe 1-51 to control the air speed of the radial pipe 1-53.
[0026] In operation, first start the fan, the dispersing motor 1-2 and the motor on the feeder 1-31, the filtered barium sulfate is added to the feeding hopper 1-3, is transported to the dryer 1 by the feeder 1-31, is scattered by the high-speed rotating disperser 1-21. The high-temperature hot air flows into the bottom of the dryer 1 along the hot air pipe 1-5 and passes through the filter cloth 1-4 and the descending barium sulfate particles to exchange heat, so that the temperature of the barium sulfate particles is increased to dehydrate and dry. The high-temperature hot air flowing into the branch pipe 1-51 passes through the annular pipe 1-52 and the radial pipe 1-53 in turn to blow to the bottom edge of the dryer 1, blows up the large-particle barium sulfate particles falling into the bottom edge of the dryer 1, and forms a rotating high-temperature hot air flow upward with the high-temperature hot air flow passing through the filter cloth 1-4 upward to take up the large particles sinking in the dryer 1. The high-speed rotating disperser 1-21 repeatedly scatters the barium sulfate particles into smaller micro-particles, and the vertical plate 1-23 of the disperser 1-21 can also scrape off the barium sulfate adhering to the inner wall of the dryer 1 to continue drying and scattering.
[0027] The hot air speed is controlled, and the nano barium sulfate particles meeting the fineness requirement are taken out from the top of the dryer 1 along with the rising air flow, enter the spiral separator 2 through the pipeline 1 2-1, and the nano barium sulfate particles are separated out from the bottom of the spiral separator 2. The hot air flow is discharged from the top of the spiral separator 2, enters the bag-type dust collector 3 through the pipeline 2 3-1, removes the residual nano barium sulfate particles, and is then discharged through the fan and the chimney, and the nano barium sulfate particles obtained by dust removal are discharged from the bottom of the bag-type dust collector 3 and collected.
[0028] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.
Claims
1. A nano-barium sulfate drying device, characterized in that: Including dryer (1), spiral separator (2) and cloth bag dust collector (3); The dryer (1) is connected with the spiral separator (2) through pipeline one (2-1), the spiral separator (2) is connected with the cloth bag dust collector (3) through pipeline two (3-1), and the outlet (3-2) of the cloth bag dust collector (3) is sequentially connected with a fan and a chimney; The tank top of the dryer (1) is provided with a dispersion motor (1-2), the rotating shaft of the dispersion motor (1-2) extends into the tank of the dryer (1), and a frame-shaped disperser (1-21) is arranged on the rotating shaft of the dispersion motor (1-2); one end of the horizontal plate (1-22) of the disperser (1-21) is connected with the rotating shaft of the dispersion motor (1-2), the other end of the horizontal plate (1-22) is connected with the vertical plate (1-23), and there is a micro gap between the vertical plate (1-23) and the inner wall of the tank of the dryer (1); A feeder (1-31) is arranged at the discharge port of the feeding hopper (1-3), a spiral feeder reamer is arranged in the conveying pipe of the feeder (1-31), and the discharge port of the feeder (1-31) penetrates the upper tank wall of the dryer (1) and extends above the disperser (1-21); A filter cloth (1-4) is arranged at the lower part of the dryer (1); A hot air pipe (1-5) penetrates from the bottom of the dryer (1), a branch pipe (1-51) connects the hot air pipe (1-5) and an annular pipe (1-52), the annular pipe (1-52) is arranged at the lower periphery of the dryer (1), the pipe plane of the annular pipe (1-52) is slightly higher than the plane of the filter cloth (1-4), one end of a radial pipe (1-53) is connected with the annular pipe (1-52), and the other end of the radial pipe (1-53) penetrates the tank wall of the dryer (1) horizontally and is tangent to the inner wall of the tank.
2. The nano-barium sulfate drying device according to claim 1, characterized in that: The feeder (1-31) is arranged obliquely, the discharge port is low, and the conveying pipe of the feeder (1-31) forms an angle of 10°-20° with the horizontal.
3. The nano-barium sulfate drying device according to claim 2, characterized in that: The radial pipe (1-53) is provided with 3-8 pipes, which are arranged uniformly and dispersedly.
4. The nano-barium sulfate drying device according to claim 3, characterized in that: The radial pipe (1-53) is provided with 6 pipes.
5. The nanometer barium sulfate drying device according to any one of claims 2-4, characterized in that: An adjusting valve (1-54) is arranged on the branch pipe (1-51) for controlling the air speed of the radial pipe (1-53).