Tower for washing tetrabromobisphenol A

Abstract

The utility model relates to the field of chemical equipment, and provides a tower for washing tetrabromobisphenol A. The tower comprises a first component settling area, a filler area and a second component settling area which are arranged from top to bottom, a water inlet and a first disperser are arranged at the lower end of the filler area, and the first disperser is fixedly connected with the inner side wall of the filler area; the first end of the water inlet is communicated with the first disperser, a feeding hole and a second disperser are arranged at the upper end of the filler area, the second disperser is fixedly connected with the inner side wall of the filler area, the first end of the feeding hole is communicated with the second disperser, and a first discharging hole is formed in the top of the first component settling area; a first discharge port is formed in the bottom of the first component settling area, a second discharge port is formed in the bottom of the second component settling area, the diameter of the first component settling area is larger than that of the filler area, and the diameter of the second component settling area is larger than that of the filler area.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a tower device used for washing tetrabromobisphenol A. Background Art

[0002] The production process for tetrabromobisphenol A (TBPA) includes bromination, aging, neutralization, washing, crystallization, centrifugation, and drying. Neutralization and washing are the processes for purifying the product liquid. Bromination, aging, and neutralization produce a nearly white liquid consisting of TBBPA, a solvent, and a small amount of sodium sulfate. Traditionally, the TBBPA washing process is performed in an intermittent process. The liquid and deionized water are injected into a washing kettle in a specific ratio, stirred and heated, and allowed to stand for a certain period of time to separate into separate layers. Salt components such as sodium sulfate, sodium sulfite, and sodium bromide are then extracted into the deionized water. This process is lengthy and requires frequent manual operation and observation, typically taking over an hour. Two or three washing stages are required to achieve the desired performance. The separation operation is subject to significant human influence, making it easy for the material phase to separate into the water layer or vice versa. This process is long and consumes a large amount of deionized water, which compromises the continuity of the entire production process. It also requires extensive manual observation and operation, resulting in a low level of automation. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the related art. To this end, the present invention provides a tower for washing tetrabromobisphenol A, which simplifies the equipment workflow, saves energy, and improves work efficiency.

[0004] The utility model provides a tower for washing tetrabromobisphenol A, comprising: a first component sedimentation zone, a filler zone and a second component sedimentation zone arranged from top to bottom, wherein the lower end of the filler zone is provided with a water inlet and a first disperser, the first disperser is fixedly connected to the inner side wall of the filler zone, the first end of the water inlet is communicated with the first disperser, the upper end of the filler zone is provided with a feed inlet and a second disperser, the second disperser is fixedly connected to the inner side wall of the filler zone, the first end of the feed inlet is communicated with the second disperser, the top of the first component sedimentation zone is provided with a first discharge port, the bottom of the second component sedimentation zone is provided with a second discharge port, the diameter of the first component sedimentation zone is greater than the diameter of the filler zone, and the diameter of the second component sedimentation zone is greater than the diameter of the filler zone.

[0005] According to the utility model, a tower for washing tetrabromobisphenol A further comprises a first metering pump and a second metering pump. The first metering pump is provided at the second end of the water inlet, and the second metering pump is provided at the second end of the feed inlet.

[0006] According to the utility model, a tower for washing tetrabromobisphenol A further includes a first production pump and a second production pump. The first end of the first discharge port is provided with the first production pump, and the first end of the second discharge port is provided with the second production pump.

[0007] According to the utility model, a tower for washing tetrabromobisphenol A further comprises a thermometer, which is fixedly arranged on the outer side wall of the second component sedimentation zone.

[0008] According to the utility model, a tower for washing tetrabromobisphenol A further comprises two interface meters, which are arranged at intervals along the vertical direction on the outer side wall of the second component sedimentation zone.

[0009] According to a tower for washing tetrabromobisphenol A provided by the utility model, the packing area also includes a packing pressure plate and a packing receiving plate, the packing pressure plate is arranged at the top of the packing area, and the packing receiving plate is arranged at the bottom of the packing area.

[0010] According to the tower for washing tetrabromobisphenol A provided by the utility model, the first component sedimentation area, the filler area and the second component sedimentation area are all provided with manholes.

[0011] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0012] According to the tower for washing tetrabromobisphenol A in the embodiment of the utility model, an integrated water washing tower for feeding and discharging materials is provided, and the diameters of the first component sedimentation zone and the second component sedimentation zone are set to be larger than the filler zone, thereby solving the problem that the liquid separation operation is greatly affected by manual labor, simplifying the work flow of the equipment, and at the same time, fully contacting the material and deionized water, saving energy and improving work efficiency.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the present invention or 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 The diagram is a structural diagram of a tower used for washing tetrabromobisphenol A.

[0016] Reference numerals:

[0017] 1. First component sedimentation zone; 11. First discharge port; 2. Filling zone; 21. Water inlet; 22. First disperser; 23. Feed port; 24. Second disperser; 25. Filling pressure plate; 26. Filling receiving plate; 3. Second component sedimentation zone; 31. Second discharge port; 4. Thermometer; 5. Interface meter; 6. Manhole. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention. The following embodiments are used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0019] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "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 the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0020] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0021] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0023] Figure 1 The diagram is a structural diagram of a tower used for washing tetrabromobisphenol A.

[0024] The utility model provides a tower for washing tetrabromobisphenol A, such as Figure 1 As shown, the tower for washing tetrabromobisphenol A includes: a first component sedimentation zone 1, a packing zone 2 and a second component sedimentation zone 3 arranged from top to bottom, the lower end of the packing zone 2 is provided with a water inlet 21 and a first disperser 22, the first disperser 22 is fixedly connected to the inner side wall of the packing zone 2, and the first end of the water inlet 21 is communicated with the first disperser 22, the upper end of the packing zone 2 is provided with a feed port 23 and a second disperser 24, the second disperser 24 is fixedly connected to the inner side wall of the packing zone 2, and the first end of the feed port 23 is communicated with the second disperser 24, the top of the first component sedimentation zone 1 is provided with a first discharge port 11, and the bottom of the second component sedimentation zone 3 is provided with a second discharge port 31, the diameter of the first component sedimentation zone 1 is larger than the diameter of the packing zone 2, and the diameter of the second component sedimentation zone 3 is larger than the diameter of the packing zone 2.

[0025] In this embodiment, by setting up an integrated feeding and discharging water washing tower, and setting the diameters of the first component sedimentation zone 1 and the second component sedimentation zone 3 to be larger than the packing zone 2, the problem of the liquid separation operation being greatly affected by manual labor is solved, and the work flow of the equipment is simplified. At the same time, the material and deionized water are fully in contact, energy is saved, and work efficiency is improved.

[0026] According to some embodiments of the present invention, deionized water enters the first disperser 22 from the lower end of the filling area 2 through the water inlet 21, and the first disperser 22 disperses the deionized water at the lower end of the filling area 2. The material enters the second disperser 24 from the upper end of the filling area 2 through the feed inlet 23, and the second disperser 24 disperses the material at the upper end of the filling area 2. The deionized water moves upward and the material moves downward to achieve countercurrent mixing. During the thorough mixing process, the deionized water washes the material, and the deionized water drives the impurities to continue to move upward and move to the first component sedimentation area 1. The diameter of the first component sedimentation zone 1 becomes larger and the rising speed decreases, which increases the washing time of the material, facilitates the separation of the material and deionized water, and prevents the deionized water from taking tetrabromobisphenol A away from the equipment. After sufficient washing, the deionized water continues to rise to the first discharge port 11, and the deionized water with impurities is discharged. Tetrabromobisphenol A continues to precipitate downward and precipitates to the second component sedimentation zone 3. The diameter of the second component sedimentation zone 3 becomes larger and the precipitation speed decreases, which increases the washing time of the material, facilitates the separation and stratification of tetrabromobisphenol A and deionized water. After stratification is completed, tetrabromobisphenol A is collected from the second discharge port 31.

[0027] According to some embodiments of the present invention, the first component is a light component, which includes salt components such as sodium sulfate, sodium sulfite, and sodium bromide; the second component is a heavy component, which includes tetrabromobisphenol A; the light component is discharged from the first discharge port along with deionized water, and the heavy component sinks to the second component sedimentation area and is collected from the second discharge port.

[0028] According to some embodiments of the present invention, the water washing of tetrabromobisphenol A is changed from multiple intermittent stirring tanks to a water washing tower with continuous feeding and discharging, thereby reducing the floor space occupied by the equipment.

[0029] According to a tower for washing tetrabromobisphenol A provided by the utility model, the tower for washing tetrabromobisphenol A also includes a first metering pump and a second metering pump. The first metering pump is provided at the second end of the water inlet 21, and the second metering pump is provided at the second end of the feed inlet 23.

[0030] In this embodiment, by setting up the first metering pump and the second metering pump, the water inlet and the feed are controlled by the first metering pump and the second metering pump respectively, the water inlet and the feed ratio are accurate, energy is saved and work efficiency is improved.

[0031] According to some preferred embodiments of the present invention, the water consumption per ton of product is reduced from about 1.2 tons to about 0.8 tons, the consumption index is reduced, and energy is saved.

[0032] According to the utility model, a tower for washing tetrabromobisphenol A is provided, which further includes a first extraction pump and a second extraction pump. The first end of the first discharge port 11 is provided with the first extraction pump, and the first end of the second discharge port 31 is provided with the second extraction pump.

[0033] In this embodiment, by providing a first extraction pump and a second extraction pump, materials and deionized water with impurities are automatically collected, thereby realizing automation of the equipment.

[0034] According to the utility model, a tower for washing tetrabromobisphenol A is provided, such as Figure 1 As shown, the tower for washing tetrabromobisphenol A further comprises a thermometer 4 , which is fixedly arranged on the outer side wall of the second component settling zone 3 .

[0035] In this embodiment, a thermometer 4 is provided to detect the temperature inside the second component sedimentation zone 3 in real time.

[0036] According to some preferred embodiments of the present invention, the temperature inside the second component sedimentation zone 3 is controlled at 35°C.

[0037] According to the utility model, a tower for washing tetrabromobisphenol A is provided, such as Figure 1 As shown, the tower for washing tetrabromobisphenol A further comprises two interface meters 5 , which are arranged vertically and spaced apart on the outer side wall of the second component settling zone 3 .

[0038] In this embodiment, two interface meters 5 are provided to achieve precise control of the interface position, thereby preventing deionized water from entering the material layer and affecting product quality during the collection of tetrabromobisphenol A.

[0039] According to some embodiments of the present invention, two interface meters 5 are provided to ensure that the interface layer is located between the two interface meters 5. The two interface meters 5 are electrically connected to the second extraction pump. When the interface is higher than the upper interface meter 5, the second extraction pump works. When the interface is lower than the lower interface meter 5, the second extraction pump stops working, thereby avoiding the separation of deionized water into tetrabromobisphenol A and affecting product quality.

[0040] According to some preferred embodiments of the present invention, the interface meter 5 adopts an oil-water interface meter, which uses the principle of ultrasonic echo detection to detect the distance between the sensor probe and the oil-water interface and the distance between the bottom surface, thereby realizing real-time monitoring of changes in the interface position, and has the characteristics of high precision, high reliability, easy installation and maintenance, etc.

[0041] According to the utility model, a tower for washing tetrabromobisphenol A is provided, such as Figure 1 As shown, the packing area 2 further includes a packing pressure plate 25 and a packing receiving plate 26 . The packing pressure plate 25 is arranged at the top of the packing area 2 , and the packing receiving plate 26 is arranged at the bottom of the packing area 2 .

[0042] According to the utility model, a tower for washing tetrabromobisphenol A is provided, such as Figure 1 As shown, the first component sedimentation area 1 , the filler area 2 and the second component sedimentation area 3 are all provided with manholes 6 .

[0043] In this embodiment, by providing a manhole 6, people can repair the equipment through the manhole 6, thereby extending the service life of the equipment.

[0044] According to some embodiments of the present invention, the working process of the tower for washing tetrabromobisphenol A is as follows: a first metering pump delivers deionized water through the water inlet from the lower end of the packing area into the first disperser, the first disperser disperses the deionized water at the lower end of the packing area, the material enters the second disperser from the upper end of the packing area through the feed inlet, the second disperser disperses the material at the upper end of the packing area, the deionized water moves upward, and the material moves downward to achieve countercurrent mixing. After sufficient mixing, the deionized water completes the washing of the material, and the deionized water drives the impurities to continue to move upward until the light component settles, the diameter of the first component settling area becomes larger and the rising speed decreases, the deionized water rises to the first discharge port, the first extraction pump works to discharge the deionized water out of the equipment for collection, tetrabromobisphenol A continues to precipitate downward and precipitate to the second component settling area, the diameter of the second component settling area becomes larger and the precipitation speed decreases, thereby increasing the washing time of the material, facilitating the separation and stratification of tetrabromobisphenol A and deionized water, and after stratification is completed, the second extraction pump works to collect tetrabromobisphenol A from the second discharge port.

[0045] Compared with the prior art, the tower for washing tetrabromobisphenol A in the embodiment of the present invention has the following technical effects:

[0046] (1) The water washing of tetrabromobisphenol A was changed from multiple intermittent stirring tanks to a water washing tower with continuous feeding and discharging, which reduced the equipment footprint.

[0047] (2) The water washing process is automated. The feed and water inlet are controlled by the second metering pump and the first metering pump respectively. The feed and water inlet ratios are precise, which simplifies the operation steps.

[0048] (3) Reduction of consumption indicators: Water consumption per ton of product has dropped from about 1.2 tons to about 0.8 tons.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tower for washing tetrabromobisphenol A, characterized in that: include: The first component sedimentation area, the filler area and the second component sedimentation area are arranged from top to bottom, the lower end of the filler area is provided with a water inlet and a first disperser, the first disperser is fixedly connected to the inner side wall of the filler area, the first end of the water inlet is communicated with the first disperser, the upper end of the filler area is provided with a feed inlet and a second disperser, the second disperser is fixedly connected to the inner side wall of the filler area, the first end of the feed inlet is communicated with the second disperser, the top of the first component sedimentation area is provided with a first discharge port, the bottom of the second component sedimentation area is provided with a second discharge port, the diameter of the first component sedimentation area is larger than the diameter of the filler area, and the diameter of the second component sedimentation area is larger than the diameter of the filler area.

2. The tower for washing tetrabromobisphenol A according to claim 1, characterized in that: It also includes a first metering pump and a second metering pump. The first metering pump is provided at the second end of the water inlet, and the second metering pump is provided at the second end of the feed inlet.

3. The tower for washing tetrabromobisphenol A according to claim 1, characterized in that: It also includes a first production pump and a second production pump. The first end of the first discharge port is provided with the first production pump, and the first end of the second discharge port is provided with the second production pump.

4. The tower for washing tetrabromobisphenol A according to claim 1, characterized in that It also includes a thermometer, which is fixedly arranged on the outer side wall of the second component sedimentation zone.

5. The tower for washing tetrabromobisphenol A according to claim 1, characterized in that: The device further comprises two interface meters, which are arranged on the outer side wall of the second component sedimentation zone at intervals in the vertical direction.

6. The tower for washing tetrabromobisphenol A according to claim 1, characterized in that: The packing area further comprises a packing pressure plate and a packing receiving plate. The packing pressure plate is arranged at the top of the packing area, and the packing receiving plate is arranged at the bottom of the packing area.

7. The tower for washing tetrabromobisphenol A according to claim 1, characterized in that: The first component sedimentation area, the filler area and the second component sedimentation area are all provided with manholes.

Images