Particle material cleaning device

Abstract

The utility model provides a particle material cleaning device which comprises a cleaning tank, a crushing and stirring device arranged at the bottom of the cleaning tank and an aeration pipe, and the top of the cleaning tank is provided with a feed port, a medicament port and a drain outlet used for discharging impurities. The bottom of the cleaning tank is provided with a discharge port for discharging impurity-removed raw materials; the crushing and stirring device is used for stirring the to-be-cleaned material added with the impurity removal agent; the aerator pipe is used for discharging compressed gas and combining with the impurity removal agent to generate a bubble film for wrapping impurities. According to the embodiment, the to-be-cleaned material can be fully crushed and stirred through the crushing and stirring device, and the impurity removal agent can be fully mixed with the to-be-cleaned material. The impurity removal agent is added, so that impurities such as PVA are slowly desorbed from the surfaces of TA particles after acting with the impurity removal agent, and the aeration pipe is used for aeration, so that compressed gas can be combined with the impurity removal agent to generate an air bubble film, can wrap the impurities and is discharged from the sewage outlet, and higher-quality and higher-purity TA extraction is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of material purification, in particular to a particle material cleaning device. Background Art

[0002] Printing and dyeing enterprises produce a large amount of alkali reduction wastewater when producing polyester fibers. This type of alkaline wastewater contains a lot of renewable resources such as terephthalic acid (TA) and caustic soda.

[0003] At present, the treatment method of alkali reduction wastewater mainly removes impurities such as suspended matter in the printing and dyeing white mud wastewater through a pretreatment system, and then obtains a wet mud cake of crude terephthalic acid through acid precipitation filtration. At this time, it contains more impurities such as polyvinyl alcohol (PVA), polyester oligomers, salts and a small amount of various additives, etc. It needs to go through pulping, filtration, washing, filter pressing, drying and other processes to further remove impurities to purify terephthalic acid.

[0004] However, since impurity polymers such as PVA are in a colloidal state and have strong adhesiveness and insolubility, they will be adsorbed and adhered to the surface of TA particles, making it difficult for existing impurity removal processes and equipment to effectively remove them, thus affecting the quality of TA. Utility Model Content

[0005] The content of this utility model is used to introduce the concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] The utility model provides a particle material cleaning device to solve the technical problems mentioned in the above background technology part.

[0007] The device comprises a cleaning tank for containing materials to be cleaned, a crushing and stirring device arranged at the bottom of the cleaning tank, and an aeration pipe, wherein the top of the cleaning tank is provided with a feed inlet for adding materials to be cleaned into the cleaning tank, a reagent inlet for adding an impurity-removing agent, and a sewage outlet for discharging impurities; the bottom of the cleaning tank is provided with a discharge port for discharging impurity-removing raw materials; the crushing and stirring device is used to stir the materials to be cleaned with the impurity-removing agent added thereto; and the aeration pipe is used to discharge compressed gas combined with the impurity-removing agent to produce a bubble film for wrapping impurities.

[0008] Optionally, the cleaning tank is equipped with a steam coil for heating the material to be cleaned.

[0009] Optionally, the steam coil is connected to an external steam pipe, and a steam valve is provided on the external steam pipe.

[0010] Optionally, the crushing and stirring device includes a stirring motor, a stirring rod, and a plurality of groups of blades and reamers arranged on the upper part of the stirring rod.

[0011] Optionally, the aeration pipe is arranged in a spiral shape.

[0012] Optionally, the aeration pipe is connected to an external air source, and the external air source is provided with an air source valve.

[0013] Optionally, a plurality of aeration heads are provided on the aeration pipe.

[0014] Optionally, a plurality of aeration heads are evenly arranged.

[0015] Optionally, each aeration head is provided with a one-way valve.

[0016] Optionally, the impurity-removing agent is hexadecyltrimethylammonium bromide.

[0017] The above embodiments of the utility model have the following beneficial effects: through a particle material cleaning device of some embodiments of the utility model, the material to be cleaned can be fully crushed and stirred by the crushing and stirring device arranged at the bottom of the cleaning tank. After adding the impurity removal agent through the agent port, the impurity removal agent can be fully mixed with the material to be cleaned by the crushing and stirring device.

[0018] Furthermore, by setting the above-mentioned aeration pipe, the mixed liquid of the above-mentioned impurity removal agent and the material to be cleaned can be aerated, and combined with the impurity removal agent to produce a bubble film, and impurities such as PVA slowly desorb from the surface of the TA particles after the impurity removal agent acts, and then are wrapped by the above-mentioned bubble film, and finally gather at the top of the cleaning tank and are gradually discharged from the sewage outlet, and the impurity-removed raw materials are deposited at the bottom and discharged from the discharge port. In this way, higher quality and purity TA extraction is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The utility model is a schematic structural diagram of an embodiment of a particle material cleaning device.

[0021] Description of reference numerals:

[0022] 1: cleaning tank; 2: feed inlet; 3: reagent inlet; 4: sewage outlet; 5: aeration pipe; 501, aeration head; 6: crushing and stirring device; 7: discharge port. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0027] See also Figure 1 , Figure 1 FIG. 1 is a schematic diagram of the structure of an embodiment of a particle material cleaning device of the utility model. Figure 1 As shown, the particle material cleaning device includes a cleaning tank 1 , a crushing and stirring device 6 and an aeration pipe 5 .

[0028] In this embodiment, the top of the cleaning tank 1 is provided with a feed port 2 for adding the material to be cleaned, a reagent port 3 for adding the impurity removal agent, and a sewage port 4 for discharging impurities. The bottom of the cleaning tank 1 is provided with a discharge port 7 for discharging the impurity-removed raw materials. In actual work, a circulation pump can be connected to the feed port 2 through a pipeline, and the material to be cleaned can be pumped into the cleaning tank 1 from the feed port 2 through the circulation pump. In addition, a valve can be provided on the discharge port 7. The valve can be a manual valve, an electric valve or a pneumatic valve, which is used to close and open the discharge port 7.

[0029] Those skilled in the art can determine the above-mentioned impurity removal agent based on the prior art or common knowledge. As an example, the above-mentioned impurity removal agent can be a macromolecular surfactant with different functional groups, at least including one hydrophilic group and one positive hydrophilic group. The above-mentioned impurity removal agent can be hexadecyltrimethylammonium bromide. As another example, the above-mentioned impurity removal agent can be a mixed solution of hexadecyltrimethylammonium bromide (CTAB) and alkylphenol polyoxyethylene ether (APEO) in a mixing ratio of 1:1 to 10:1.

[0030] Continue reading Figure 1 The crushing and stirring device 6 may include a stirring motor, a stirring rod, and a plurality of blades and reamers arranged on the upper part of the stirring rod. In the assembled state, the lower end of the stirring rod is connected to the output shaft of the stirring motor, and the upper end of the stirring rod is inserted into the cleaning tank 1 from the bottom of the cleaning tank 1. In actual work, the crushing and stirring device 6 is used to fully crush and stir the material to be cleaned. After adding the impurity removal agent through the agent port, the impurity removal agent can also be fully mixed with the material to be cleaned through the crushing and stirring device 6.

[0031] Furthermore, a steam coil for heating the above-mentioned material to be cleaned can also be arranged in the cleaning tank 1. The steam coil can be connected to an external steam pipe, and a steam valve is arranged on the above-mentioned external steam pipe. The above-mentioned multiple groups of impellers and reamer can rotate in the space inside the steam coil. After the above-mentioned crushing and stirring device 6 has fully crushed and stirred the material to be cleaned, the above-mentioned steam valve can be opened so that the steam coil heats the material to be cleaned in the cleaning tank 1 to 60-95 degrees. Subsequently, an impurity removal agent is added, and the impurity removal agent and the material to be cleaned are fully mixed through the crushing and stirring device 6. Then, by increasing the temperature of the material to be cleaned, the mixing effect of the impurity removal agent and the material to be cleaned is improved.

[0032] The aeration pipe 5 is arranged inside the cleaning tank 1, and may be above the crushing and stirring device 6. The aeration pipe 5 may be connected to an external air source, and an air source valve may be arranged at the outlet pipe of the external air source. When the air source valve is opened, the compressed air provided by the external air source is sprayed into the cleaning tank 1 through the aeration pipe 5 to combine with the impurity removal agent to produce a bubble film, and impurities such as PVA slowly desorb from the surface of the TA particles after reacting with the impurity removal agent, and then are wrapped by the bubble film, and the impurity removal agent finally gathers at the top of the cleaning tank 1 and is gradually discharged from the sewage outlet 4.

[0033] Furthermore, the aeration pipe 5 may be arranged in a spiral shape, and a plurality of evenly installed aeration heads 501 may be arranged on the aeration pipe 5. In this way, the aeration range is wider and more sufficient, thereby improving the removal efficiency of impurities.

[0034] Furthermore, in order to prevent impurities from entering the aeration head 501 , each aeration head 501 may be provided with a one-way valve, thereby reducing the maintenance work on the aeration head 501 .

[0035] In actual work, first, the material to be cleaned is pumped into the cleaning tank 1 from the above-mentioned feed port 2 through a circulating pump, and then the stirring and crushing device is started to fully crush and stir the liquid to be cleaned. Then the above-mentioned steam valve is opened so that the steam coil heats the material to be cleaned in the cleaning tank 11 to 60-95 degrees. Subsequently, an impurity-removing agent is added from the agent port, and the impurity-removing agent and the material to be cleaned are fully mixed through the crushing and stirring device 6. After the above-mentioned impurity-removing agent CTAB is added, the positive water group in the above-mentioned impurity-removing agent CTAB combines with the PVA impurities, so that the PVA impurities are dissolved and fall off from the surface of the TA particles in the liquid to be cleaned, forming decomposed small particles. The hydrophilic group in the above-mentioned impurity-removing agent CTAB brings the above-mentioned decomposed small particles into the water for uniform dispersion, so that the insoluble colloidal PVA impurities become soluble liquids dispersed in the liquid to be cleaned. Finally, the air source valve is opened, and the compressed air provided by the external air source is aerated into the cleaning tank 1 through the aeration pipe 5, so that the gas and the hydrophobic group of the surfactant generate surface tension and form a bubble film, and the small particles are entrained by the hydrophilic group of the surfactant, and then wrapped by the bubble film and collected at the top of the cleaning tank and discharged from the sewage outlet 204, so that the gas combines with the above-mentioned decomposed small particles to generate a bubble film. The impurity removal agent finally gathers at the top of the cleaning tank 1 and is discharged from the sewage outlet 4. Finally, the valve at the discharge port 7 is opened to discharge the impurity-removed raw materials deposited at the bottom of the cleaning tank 1.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for cleaning particulate matter, characterized in that: It includes a cleaning tank for holding the material to be cleaned, a crushing and stirring device and an aeration pipe arranged at the bottom of the cleaning tank, wherein: The top of the cleaning tank is provided with a feed port for adding the material to be cleaned into the cleaning tank, a reagent port for adding an impurity removal agent, and a sewage outlet for discharging impurities; The bottom of the cleaning tank is provided with a discharge port for discharging the impurity-removed raw materials; The crushing and stirring device is used to stir the material to be cleaned with the impurity removal agent added; The aeration pipe is used to discharge compressed gas and combine with the impurity removal agent to produce a bubble film for wrapping impurities.

2. A particle material cleaning device according to claim 1, characterized in that: The cleaning tank is internally provided with a steam coil for heating the material to be cleaned.

3. A particle material cleaning device according to claim 2, characterized in that: The steam coil is connected to an external steam pipeline, and a steam valve is provided on the external steam pipeline.

4. A particle material cleaning device according to claim 1, characterized in that: The crushing and stirring device includes a stirring motor, a stirring rod, and multiple groups of blades and reamers arranged on the upper part of the stirring rod.

5. The device for cleaning particulate matter according to claim 1, characterized in that: The aeration pipe is arranged in a spiral shape.

6. The device for cleaning particulate matter according to claim 1, characterized in that: The aeration pipe is connected to an external air source, and the external air source is provided with an air source valve.

7. A particle material cleaning device according to claim 6, characterized in that: The aeration pipe is provided with a plurality of aeration heads.

8. A particle material cleaning device according to claim 7, characterized in that: The plurality of aeration heads are evenly arranged.

9. The device for cleaning particulate matter according to claim 7, characterized in that: Each aeration head is provided with a one-way valve.

10. The device for cleaning particulate matter according to claim 1, characterized in that: The impurity-removing agent is hexadecyltrimethylammonium bromide.

Images