Quantitative concentration device for materials easy to agglomerate

Abstract

The utility model provides a quantitative concentration device for easily agglomerated materials, which comprises an efficient evaporation concentration mechanism and a vacuum condensation mechanism, the efficient evaporation concentration mechanism comprises a concentrated material bottle arranged in a water bath kettle, and a stirring blade of a high-speed dispersion machine is vertically arranged in the concentrated material bottle through a central opening of the concentrated material bottle; the vacuum condensation mechanism comprises a condensation pipe, a low-temperature constant-temperature water tank, a safety buffer and a water circulation vacuum pump; the safety buffer is connected with the liquid receiving pipe through an exhaust pipe. According to the water circulation vacuum pump, the possibility of agglomeration or layering of materials when water evaporation is reduced in the heating process is reduced, the problem of how to judge the evaporation and concentration time is solved, and the service life of the water circulation vacuum pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of solution evaporation and concentration technology, and in particular to a quantitative concentration device for easily agglomerated materials. Background Technology

[0002] Evaporation concentration refers to the process of boiling a solution by heating or reducing pressure, causing some of the solvent to vaporize and separate, thus concentrating the solution. Most existing distillation concentration devices use open flames for heating, making temperature control difficult, controlling the distillation process and volume, and resulting in slow distillation speeds, low liquid concentration efficiency, and the irreversible evaporation concentration process.

[0003] Currently, the cooling water used in evaporation and concentration devices is groundwater or tap water, which is affected by seasonal changes. Condensation is more effective in winter when temperatures are low, but in summer, water temperatures can reach above 32 degrees Celsius, hindering rapid cooling and significantly reducing the overall evaporation and concentration efficiency. During evaporation and concentration, materials prone to agglomeration are susceptible to agglomeration or stratification due to rapid evaporation loss of heated water. Excessively high evaporation and concentration temperatures can cause volatilization loss or structural damage to organic additives in slurry-like materials, affecting the stability of their physicochemical properties. The amount of condensate produced during evaporation and concentration cannot be measured in a timely manner, hindering the assessment and control of the evaporation and concentration process and the duration of experiments. After prolonged use, the temperature inside the working water tank of the water-circulating vacuum pump rises, affecting its normal operation and preventing the provision of stable negative pressure conditions, thus impacting the overall evaporation and concentration efficiency. This results in low evaporation and concentration efficiency, wasting groundwater or tap water, and requiring dedicated personnel for monitoring. Therefore, research on quantitative concentration devices and methods for easily agglomerated materials is of significant research value. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a quantitative concentration device for easily agglomerated materials, so as to overcome the above-mentioned defects of the prior art.

[0005] This utility model is achieved using the following technical solution:

[0006] This utility model discloses a quantitative concentration device for easily agglomerated materials, comprising a high-efficiency evaporation and concentration mechanism and a vacuum condensation mechanism, wherein:

[0007] The high-efficiency evaporation and concentration mechanism includes a water bath, a concentrated material bottle placed in the water bath, a high-speed disperser on one side of the water bath, the high-speed disperser being fixed by a column with a cross clamp, and the stirring blade of the high-speed disperser being vertically installed in the concentrated material bottle through the central opening.

[0008] The vacuum condensation mechanism includes a condenser tube, a low-temperature constant-temperature water bath, a safety buffer, and a water circulation vacuum pump connected to the top of the safety buffer via a flexible hose. The condenser tube is connected to the concentrated material bottle via a three-way pipe. The upper end of the condenser tube has a steam outlet, a cooling water return pipe on the upper side, a liquid receiving pipe at the lower end, and a cooling water inlet pipe on the lower side. The liquid receiving pipe is connected to a quantitative collection bottle. The interior of the low-temperature constant-temperature water bath has a water pump and a fixing clamp on both sides. The water pump is connected to the cooling water inlet pipe, and the fixing clamp is used to fix one end of the cooling water return pipe. The safety buffer is connected to the liquid receiving pipe via a vacuum pipe, and a separation grid is provided in the middle of the safety buffer.

[0009] Preferably, the water bath is an electric thermostatic water bath.

[0010] Preferably, the concentrated material bottle is a four-necked flask, in which the central flask is vertically inserted into the stirring blade of the high-speed disperser, one flask is the feeding port, one flask is the material temperature measuring port, and one flask is connected to the condenser pipe through a three-way pipe.

[0011] Preferably, the column is equipped with two cross clamps, which can move up and down on the column for positioning; one is used to fix the high-speed disperser, and the other is used in combination with a universal clamp to fix the concentrated material bottle. The cross clamp and universal clamp on the column are used to fix the concentrated material bottle, preventing vibration or movement. The combination of the cross clamp and universal clamp is a conventional method in the art and will not be described in detail here.

[0012] Preferably, the condenser tube is fixed by a metal frame with a universal clamp located at its rear. Alternatively, the universal clamp can be fixed to the column of the metal frame using a conventional combination with a cross clamp. The condenser tube can be a spherical condenser tube or a serpentine condenser tube.

[0013] Preferably, the quantitative collection bottle is placed on the experimental lifting platform, and the height of the quantitative collection bottle can be adjusted by the experimental lifting platform, so as to better facilitate the connection between the equipment.

[0014] Preferably, a desiccant is provided in the lower inner part of the safety buffer. The desiccant may be color-changing silica gel particles, which are used to absorb a small amount of water vapor in the vacuum extraction tube. At the same time, the amount of water vapor in the extraction tube can be judged by the color change.

[0015] Preferably, a cooling ice box is provided in the water tank of the water circulation vacuum pump, which can solve the problem that the water circulation vacuum pump's performance is affected by temperature rise during use and the need to replace the warm water in the water tank from time to time.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model uses a combination of a low-temperature constant temperature water bath and a water pump to replace tap water for cooling the condenser tube, which improves the cooling rate and reduces the waste of tap water;

[0018] 2. Installing a safety buffer between the water-circulating vacuum pump and the suction pipe connected to the condenser tube can allow the incompletely condensed liquid vapor in the condenser tube to undergo self-heating condensation and absorption, thus preventing the incompletely condensed liquid vapor from affecting the normal operation of the water-circulating vacuum pump.

[0019] 3. Install a high-speed disperser in the concentrated material bottle. Use the dispersing blades of the high-speed disperser to disperse the slurry sample to be concentrated evenly, which can prevent the sample from agglomerating and separating.

[0020] 4. By using a quantitative collection bottle instead of a regular collection bottle, the problem of determining the appropriate amount of material to be evaporated and concentrated, as well as the required evaporation and concentration time, is solved. The amount of water produced during evaporation and concentration can be theoretically calculated in advance, thus determining the end time of evaporation and concentration.

[0021] 5. Adding a cooling ice pack to the water tank of the water-circulating vacuum pump solves the problem of the water-circulating vacuum pump's performance being affected by temperature rise during use and the need to change the warm water in the tank periodically. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] In the diagram: 1 Water bath, 2 Concentrated material bottle, 3 Column, 4 Universal clamp, 5 Cross clamp, 6 High-speed disperser, 7 PTFE stirring plug, 8 Feed port, 9 Material temperature measuring hole, 10 Thermometer, 11 T-connector, 12 Condenser, 13 Iron stand, 14 Cooling water inlet pipe, 15 Cooling water return pipe, 16 Steam outlet, 17 Liquid receiving pipe, 18 Quantitative collection bottle, 19 Experimental lifting platform, 20 Low temperature constant temperature water bath, 21 Water pump, 22 Fixing clamp, 23 Water circulation vacuum pump, 24 Cooling ice box, 25 Safety buffer, 26 Separation grid, 27 Desiccant, 28 Vacuum extraction pipe. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that these drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner. Therefore, they only show the components related to the present invention.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In the description of this utility model, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] In the following embodiments, the water bath is an electrically heated constant-temperature water bath, the concentrated material bottle is a four-necked flask, and the condenser is a spherical condenser. Other devices, instruments, glassware, etc., are all conventional and commonly used in the art.

[0029] Example

[0030] See Figure 1 A quantitative concentration device for easily agglomerated materials includes a high-efficiency evaporation and concentration mechanism and a vacuum condensation mechanism. The high-efficiency evaporation and concentration mechanism includes a water bath 1, a concentrated material bottle 2 placed in the water bath 1, a high-speed disperser 6 on one side of the water bath 1, the high-speed disperser 6 being fixed by a column 3 with a cross clamp 5, and the stirring blade of the high-speed disperser 6 being vertically set near the bottom of the concentrated material bottle 2 through the central opening of the concentrated material bottle 2. One opening of the concentrated material bottle 2 is a feeding port 8, another opening is a material temperature measuring port 9 for inserting a thermometer 10 to measure the temperature of the material, and the third opening is connected to a condenser 12 through a three-way pipe 11.

[0031] The vacuum condensation mechanism includes a condenser tube 12, a low-temperature constant-temperature water bath 20, a safety buffer 25, and a water circulation vacuum pump 23 connected to the top of the safety buffer 25 via a hose. The condenser tube 12 is connected to the concentrated material bottle 2 via a three-way pipe 11. The upper end of the condenser tube 12 is provided with a steam outlet 16, the upper side is provided with a cooling water return pipe 15, the lower end is provided with a liquid receiving pipe 17, and the lower side is provided with a cooling water inlet pipe 14. The liquid receiving pipe 17 is connected to a quantitative collection bottle 18. The inside of the low-temperature constant-temperature water bath 20 is provided with a water pump 21 and a fixing clamp 22 on both sides. The water pump 21 is connected to the cooling water inlet pipe 14, and the fixing clamp 22 is used to fix one end of the cooling water return pipe 15. The safety buffer 25 is connected to the liquid receiving pipe 17 via a vacuum pipe 28, and a separation grid 26 is provided in the middle of the safety buffer 25.

[0032] The method for concentrating easily agglomerated materials using the above-mentioned quantitative concentration device includes the following steps: adding 60%-80% water by volume to a water bath 1, adding the material to be evaporated and concentrated to a concentrated material bottle 2, placing the concentrated material bottle 2 in the water bath 1 for water bath heating, and turning on the high-speed disperser 6; placing the water pump 21 in a low-temperature constant-temperature water bath 20, turning on the power supply to the water pump 21, connecting the water pump 21 to the lower end of the condenser tube 12 through the condensate inlet pipe 14, and draining the condensate from the upper end of the condenser tube 12 to the low-temperature constant-temperature water bath 2 through the condensate outlet pipe 15. Inside the water circulation vacuum pump 23, the air inlet is connected to the upper port of the safety buffer container 25 through a pipe. The safety buffer container 25 is provided with a separation grid 26 in the middle. The lower port of the safety buffer container 25 is connected to the liquid receiving pipe 17 at the lower end of the condenser through the air extraction pipe 28. When the power of the water circulation vacuum pump 23 is turned on, the liquid in the concentrated material bottle is heated and evaporated to form steam while the high-speed disperser is stirring the material. The steam is cooled by the condenser 12 and finally flows into the quantitative collection bottle 18. The steam that is not completely condensed enters the safety buffer 25 through the air extraction pipe 28.

[0033] The use of a round-bottomed concentration bottle combined with a paddle-type dispersing plate allows for better and more uniform dispersion of easily agglomerated and stratified slurry-like materials. A combination of a low-temperature constant-temperature water bath and a water pump replaces tap water for cooling the condenser tubes, providing a stable and continuous supply of low-temperature cooling water for better cooling and recovery of all evaporated water. This allows for precise evaporation and concentration operations, increases the cooling rate, and reduces tap water waste. A safety buffer is installed between the water-circulating vacuum pump and the suction pipe connected to the condenser tubes, allowing for the re-heating and absorption of incompletely condensed liquid vapor in the condenser tubes, preventing incompletely condensed liquid vapor from entering the water-circulating vacuum pump and affecting its normal operation. A graduated quantitative collection bottle replaces a regular collection bottle, solving the problem of determining the appropriate concentration time based on the quantity of material to be evaporated and the required evaporation time. The amount of water produced during evaporation and concentration can be theoretically calculated in advance, allowing for the determination of the evaporation and concentration completion time.

[0034] In a preferred embodiment, the column 3 is provided with two cross clamps 5, which can move up and down on the column 3 for positioning; one is used to fix the high-speed disperser 6, and the other is used in combination with the universal clamp 4 to fix the concentrated material bottle 2. The cross clamp and universal clamp on the column are used to fix the concentrated material bottle to prevent the concentrated material bottle from vibrating or moving.

[0035] In a preferred embodiment, the condenser tube 12 is fixed by an iron frame 13 with a universal clamp 4 located on its rear side to prevent it from loosening and moving during condensation, which could lead to steam leakage.

[0036] In a preferred embodiment, the quantitative collection bottle 18 is placed on the experimental lifting platform 19, and the height of the quantitative collection bottle 18 can be adjusted by the experimental lifting platform 19, so as to better match the connection between the equipment.

[0037] In a preferred embodiment, the safety buffer 25 is topped with a spherical cap having a ground joint contact surface, which facilitates sealing and prevents air leakage.

[0038] In a preferred embodiment, a desiccant 27 is provided in the lower inner part of the safety buffer 25. The desiccant may be color-changing silica gel particles, which are used to absorb a small amount of water vapor in the vacuum extraction tube. At the same time, the amount of water vapor in the extraction tube can be judged by the color change.

[0039] In a preferred embodiment, a cooling ice box 24 is provided in the water tank of the water circulation vacuum pump 23, which can solve the problem that the water circulation vacuum pump's performance is affected by temperature rise during use and that the warm water in the water tank needs to be replaced from time to time.

[0040] In summary, this invention employs a high-speed disperser with stirring blades and a four-necked round-bottom concentrated material bottle, which improves the dispersion and stirring rate and reduces the possibility of material agglomeration or stratification during the heating process when moisture evaporates. The graduated collection bottle replaces the ordinary collection bottle, solving the problem of determining the appropriate concentration time based on the quantity of material to be evaporated. The safety buffer prevents incompletely condensed liquid vapor from entering the water-circulating vacuum pump and affecting its normal operation. A certain amount of desiccant placed at the bottom of the safety buffer absorbs small amounts of water vapor in the vacuum extraction tube, and the amount of water vapor in the extraction tube can be determined by the color change of the silica gel particles. A cooling ice pack can be added to the water tank of the water-circulating vacuum pump to maintain its normal operation.

[0041] Those skilled in the art should understand that the above embodiments are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments. Without departing from the described principle, the implementation of the present invention may have any variations or modifications.

Claims

1. A quantitative concentration device for easily agglomerated materials, comprising a high-efficiency evaporation concentration mechanism and a vacuum condensation mechanism, characterized in that: the high-efficiency evaporation concentration mechanism comprises a water bath (1), a concentrated material bottle (2) placed in the water bath (1), a high-speed disperser (6) provided on one side of the water bath (1), the high-speed disperser (6) being fixed by a stand (3) provided with a cross-shaped clamp (5), and the stirring paddle of the high-speed disperser (6) being vertically arranged in the concentrated material bottle (2) through a central opening of the concentrated material bottle (2); the vacuum condensation mechanism comprises a condenser tube (12), a low-temperature constant-temperature water tank (20), a safety buffer (25), and a water circulation vacuum pump (23) connected to the upper part of the safety buffer (25) through a hose, the condenser tube (12) is connected to the concentrated material bottle (2) through a three-way pipe (11), the upper end of the condenser tube (12) is provided with a steam outlet (16), the upper side is provided with a cooling water return pipe (15), the lower end is provided with a liquid receiving pipe (17), and the lower side is provided with a cooling water inlet pipe (14), the liquid receiving pipe (17) is connected to a quantitative collection bottle (18); the low-temperature constant-temperature water tank (20) is provided with a water pump (21) and a fixing clamp (22) on both sides of the inside, the water pump (21) is connected to the cooling water inlet pipe (14), and the fixing clamp (22) is used to fix one end of the cooling water return pipe (15); the safety buffer (25) is connected to the liquid receiving pipe (17) through an air suction pipe (28), and the middle part of the safety buffer (25) is provided with a separation grid (26).

2. The dosing device according to claim 1, characterized in that The concentrated material bottle (2) is a four-necked flask, the central neck is vertically inserted into the stirring paddle of the high-speed disperser, one neck is a feeding port (8), one neck is a material temperature measuring hole (9), and one neck is connected to the condenser tube (12) through the three-way pipe (11).

3. The dosing device according to claim 1, characterized in that The stand (3) is provided with two cross-shaped clamps (5), one is used to fix the high-speed disperser (6), and the other is used in combination with a universal clamp (4) to fix the concentrated material bottle (2).

4. The dosing device of claim 1, wherein The condenser tube (12) is a spherical condenser tube or a serpentine condenser tube.

5. The dosing device of claim 1, wherein The quantitative collection bottle (18) is placed on an experimental lifting platform (19), and the height of the quantitative collection bottle (18) is adjusted by the experimental lifting platform (19).

6. The dosing device of claim 1, wherein The lower part of the safety buffer (25) is provided with a drying agent (27).

7. The dosing device according to claim 6, characterized in that The drying agent is a color-changing silica gel particle.

8. The dosing device of claim 1, wherein, A cooling ice box (24) is arranged in the water tank of the water circulation vacuum pump (23).

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