Continuous device for degreasing reaction of active black KNB dye

Abstract

The continuous device for the reactive black KNB dye degreasing reaction comprises a heat exchanger, a stirring tank and a collecting tank which are sequentially connected, a first on-line acidity meter is arranged on the stirring tank, a second on-line acidity meter is arranged on the collecting tank, the heat exchanger is further connected with a raw material tank containing a KNB solution, the stirring tank is provided with a feeding port used for adding a NaOH solution, and the collecting tank is provided with a second on-line acidity meter. A charging hole for adding a hydrochloric acid solution is formed in the collecting tank; a stirrer is arranged in the stirring tank and is driven by a motor to rotate; the stirrer comprises a stirring shaft and a first stirring mechanism arranged on the stirring shaft, the first stirring mechanism comprises a fixing sleeve, a first stirring rod and a second stirring rod, the fixing sleeve fixedly sleeves the stirring shaft, the first stirring rod is horizontally fixed on the fixing sleeve, and the second stirring rod is fixed on the first stirring rod and is in an inverted V shape. The device realizes continuous production and saves time, and the stirring tank provides stirring, so that the conversion rate of the reaction is higher, the side reaction is reduced, and the material is purer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of chemical production equipment especially relates to a continuous device of active black KNB dye degreasing reaction. BACKGROUND

[0002] At present, the degreasing process of active black KNB dye adopts intermittent kettle type reaction, and this process has some problems: 1) since the degreasing reaction is an exothermic reaction, too high temperature can cause the occurrence of side reactions, so the reaction material in the whole kettle needs to be lowered to the specified temperature in advance, thus a large amount of cold source is needed; 2) the pH of the degreasing reaction is strongly alkaline, while the pH of the reaction material is slightly acidic, so sodium hydroxide solution is used to adjust the pH of the reaction, and the kettle type reaction needs a long time to adjust the pH of the reaction material in the whole kettle to strong alkalinity; 3) the pH needs to be monitored in the whole reaction process, and the current method is to take the solution in the kettle to test the pH with a pH meter, but the volume of the reaction kettle is more than 10 tons, and this measurement method will have errors. SUMMARY

[0003] The utility model aims at at least in some extent solves one of the technical problems in the prior art. For this purpose, the utility model provides a continuous device of active black KNB dye degreasing reaction.

[0004] A continuous device of active black KNB dye degreasing reaction, comprising: heat exchanger, agitator tank and collection tank connected in sequence, first on-line pH meter is equipped on the agitator tank, second on-line pH meter is equipped on the collection tank, the heat exchanger is also connected with the raw material tank containing KNB solution, the agitator tank is equipped with the feeding port for adding NaOH solution, the collection tank is equipped with the feeding port for adding hydrochloric acid solution;

[0005] The agitator tank is equipped with agitator, and the agitator is driven to rotate by motor;The agitator comprises an agitator shaft and a first stirring mechanism arranged on the agitator shaft, the first stirring mechanism comprises a fixed sleeve, a first stirring rod and a second stirring rod, the fixed sleeve is fixed on the agitator shaft, the first stirring rod is fixed horizontally on the fixed sleeve, and the second stirring rod is inverted V-shaped and vertically fixed on the first stirring rod.

[0006] In some embodiments, the first stirring mechanism is provided with a plurality of first stirring mechanisms, and the plurality of first stirring mechanisms are uniformly distributed on the agitator shaft from top to bottom.

[0007] In some embodiments, the agitator shaft is provided with a first mounting hole, the fixed sleeve is fixed on the agitator shaft by bolts, and the bolts are inserted into the first mounting hole.

[0008] In some embodiments, the first stirring rod is provided with two first stirring rods and is symmetrically arranged on the fixed sleeve.

[0009] In some embodiments, a second stirring mechanism is further arranged on the stirring shaft, the second stirring mechanism comprising a connecting rod and a scraper, the stirring shaft above and below the first stirring mechanism is provided with a second mounting hole, the connecting rod is inserted into the second mounting hole, the middle part of the connecting rod is provided with a threaded section, and the connecting rod is fixed to the stirring shaft through a first nut; the scraper is vertically fixed to the end of the connecting rod, and the scraper is in close contact with the inner wall of the stirring tank.

[0010] In some embodiments, the inner side of the scraper is provided with a sleeve, the sleeve is sleeved on the end of the connecting rod, the side wall of the sleeve is provided with a long circular hole arranged symmetrically, the end of the connecting rod is provided with a through hole corresponding to the long circular hole, and the long circular hole and the through hole are fixed by a bolt.

[0011] In some embodiments, the second stirring mechanism further comprises a stirring plate, a plug rod and a second nut, the plug rod penetrates the two connecting rods arranged above and below, the stirring plate is rotationally arranged on the connecting rod, and the lower end of the plug rod is fixed by the second nut.

[0012] In some embodiments, a third stirring mechanism is further included, the third stirring mechanism is arranged at the bottom end of the stirring shaft, and comprises stirring blades arranged in a cross shape, and the stirring blades are in close contact with the bottom of the stirring tank.

[0013] The advantages and beneficial effects of the present application are as follows:

[0014] (1) The reaction in the kettle is changed into a continuous process, which can be integrated into the continuous production of the company, thereby saving time.

[0015] (2) The material is cooled to the required temperature by a heat exchanger before reaction, instead of cooling the whole kettle of material, thereby saving the cold source.

[0016] (3) The stirring tank is adopted, the material mixing is more uniform, the reaction is faster and more complete, the conversion rate of the reaction is higher, the side reaction is reduced, and the material is purer.

[0017] (4) An on-line pH meter is installed, the PH of the whole reaction process can be monitored, and the reaction is more controllable. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is a structural schematic view of a continuous device for reactive black KNB dye de-esterification reaction;

[0020] Figure 2 is an internal structure diagram of the stirring tank described in embodiment 1;

[0021] Figure 3 is a structural schematic diagram of the stirrer described in Example 2.

[0022] Reference signs:

[0023] 1, stirring tank; 11, stirrer; 111, stirring shaft; 1111, first mounting hole; 1112, second mounting hole; 112, first stirring mechanism; 1121, fixing sleeve; 1122, first stirring rod; 1123, second stirring rod; 113, second stirring mechanism; 1131, connecting rod; 11311, threaded section; 11312, first nut; 1132, scraper; 11321, insertion sleeve; 11322, oblong hole; 11323, bolt; 1133, stirring plate; 1134, insertion rod; 1135, second nut; 114, third stirring mechanism; 12, motor; 2, heat exchanger; 3, first on-line acidity meter; 4, collection tank; 5, second on-line acidity meter. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, examples of which are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0029] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean 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 present application. In the present application, the illustrative description 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 the present application and the features of different embodiments or examples without contradiction.

[0030] Embodiment 1

[0031] As Figures 1-2The continuous device for the degreasing reaction of reactive black KNB dye is shown, which comprises a heat exchanger 2, a stirring tank 1 and a collecting tank 4 connected in sequence, the stirring tank 1 is provided with a first online pH meter 3, the collecting tank 4 is provided with a second online pH meter 5, the heat exchanger 2 is also connected with a raw material tank containing KNB solution, the stirring tank 1 is provided with a feeding port for adding NaOH solution, and the collecting tank 4 is provided with a feeding port for adding hydrochloric acid solution; the reaction material is cooled to the required temperature through the heat exchanger before the reaction, instead of cooling the whole tank of material, so that the cooling source can be saved; the reaction pH can be adjusted by adding NaOH solution, and the hydrochloric acid is used for adjusting the pH of the material in the collecting tank, the pH is measured online by the pH meter, and the operation is convenient;

[0032] The stirring tank 1 is provided with a stirrer 11 driven to rotate by a motor 12; the stirrer 11 comprises a stirring shaft 111 and a first stirring mechanism 112 arranged on the stirring shaft 111, the first stirring mechanism 112 comprises a fixing sleeve 1121, a first stirring rod 1122 and a second stirring rod 1123, the fixing sleeve 1121 is arranged on the stirring shaft 111, the first stirring rod 1122 is fixed horizontally on the fixing sleeve 1121, and the second stirring rod 1123 is in an inverted V shape and is fixed vertically on the first stirring rod 1122. The structure of the two stirring rods improves the stirring effect.

[0033] Exemplarily, the first stirring mechanism 112 is provided with a plurality of first stirring mechanisms 112 which are uniformly distributed on the stirring shaft 111 from top to bottom.

[0034] Exemplarily, the stirring shaft 111 is provided with a first mounting hole 1111, the fixing sleeve 1121 is fixed on the stirring shaft 111 through a bolt 11323, and the bolt 11323 is inserted into the first mounting hole 1111.

[0035] Exemplarily, the first stirring rod 1122 is provided with two first stirring rods 1122 which are symmetrically arranged on the fixing sleeve 1121.

[0036] The structure design of the above first stirring mechanism can facilitate the separate disassembly and replacement of a certain group of stirring rods.

[0037] Embodiment 2

[0038] As Figure 3As shown, in order to improve the stirring effect, on the basis of the above embodiment 1, the setting of the stirring mechanism can also be increased, such as the second stirring mechanism 113 can also be provided on the stirring shaft 111, the second stirring mechanism 113 includes a connecting rod 1131 and a scraper 1132, the stirring shaft 111 above and below the first stirring mechanism 112 is provided with a second mounting hole 1112, the second mounting hole 1112 is provided with a connecting rod 1131, the middle part of the connecting rod 1131 is provided with a threaded section 11311, the connecting rod 1131 is fixed with the stirring shaft 111 through the first nut 11312; the scraper 1132 is vertically fixed at the end of the connecting rod 1131, and the scraper 1132 is in close contact with the inner wall of the stirring tank 1, and the scraper is convenient for scraping the material adhered to the inner wall.

[0039] Specifically, the inner side of the scraper 1132 is provided with a plug sleeve 11321, the plug sleeve 11321 is sleeved on the end of the connecting rod 1131, the side wall of the plug sleeve 11321 is provided with a long circular hole 11322, the end of the connecting rod 1131 is provided with a through hole corresponding to the long circular hole 11322, and the bolt 11323 passes through the long circular hole 11322 and the through hole to fix the scraper 1132.

[0040] The structure is convenient for adjusting and replacing the scraper.

[0041] Specifically, the second stirring mechanism 113 further includes a stirring plate 1133, a plug rod 1134 and a second nut 1135, the plug rod 1134 penetrates the two connecting rods 1131 arranged above and below from top to bottom, the stirring plate 1133 is rotationally arranged on the connecting rod 1131, and the lower end of the plug rod 1134 is fixed through the second nut 1135.

[0042] The stirring plate is another stirring mode, which can also be deflected during stirring to stir the material.

[0043] Exemplarily, the third stirring mechanism 114 is arranged at the bottom end of the stirring shaft 111 and includes stirring blades arranged in a cross shape, and the stirring blades are in close contact with the bottom of the stirring tank 1. The third stirring mechanism is used for stirring the material at the bottom, and can also scrape the material at the bottom to prevent deposition.

[0044] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A continuous apparatus for the de-esterification of Reactive Black KNB dye, characterized by, The utility model relates to a kind of production device of KNB, including: The heat exchanger, the stirring tank and the collection tank connected in turn are provided with the first on-line acidity meter on the stirring tank, and the second on-line acidity meter is provided on the collection tank, and the heat exchanger is also connected with the raw material tank containing KNB solution, and the stirring tank is provided with the feeding port for adding NaOH solution, and the collection tank is provided with the feeding port for adding hydrochloric acid solution; The stirring tank is provided with a stirrer driven to rotate by a motor; the stirrer includes a stirring shaft and a first stirring mechanism disposed on the stirring shaft. The first stirring mechanism includes a fixed sleeve, a first stirring rod, and a second stirring rod. The fixed sleeve is fixedly arranged on the stirring shaft. The first stirring rod is horizontally fixed on the fixed sleeve. The second stirring rod is in an inverted V shape and is vertically fixed on the first stirring rod.

2. The continuous apparatus for the de-esterification reaction of Reactive Black KNB dye according to claim 1, characterized by, The first stirring mechanism is provided with a plurality of first stirring mechanisms, which are uniformly distributed on the stirring shaft from top to bottom.

3. The continuous apparatus for the de-esterification reaction of Reactive Black KNB dye according to claim 1, characterized in that, The stirring shaft is provided with a first mounting hole. The fixed sleeve is fixed on the stirring shaft by bolts inserted into the first mounting hole.

4. The continuous apparatus for the de-esterification reaction of Reactive Black KNB dye according to claim 1, characterized in that, The first stirring rod is provided with two first stirring rods symmetrically arranged on the fixed sleeve.

5. The continuous apparatus for the de-esterification reaction of Reactive Black KNB dye according to claim 1, characterized in that, The stirring shaft is further provided with a second stirring mechanism. The second stirring mechanism includes a connecting rod and a scraper. The stirring shaft above and below the first stirring mechanism is provided with a second mounting hole. The connecting rod is inserted into the second mounting hole. The middle part of the connecting rod is provided with a threaded section. The connecting rod is fixed to the stirring shaft by a first nut. The scraper is vertically fixed to the end of the connecting rod and is in close contact with the inner wall of the stirring tank.

6. The continuous apparatus for the de-esterification reaction of Reactive Black KNB dye according to claim 5, characterized by the fact that, The inner side of the scraper is provided with a sleeve. The sleeve is sleeved on the end of the connecting rod. The side wall of the sleeve is provided with a long circular hole symmetrically arranged. The end of the connecting rod is provided with a through hole corresponding to the long circular hole. The bolt passes through the long circular hole and the through hole to fix the scraper.

7. The continuous apparatus for the de-esterification reaction of Reactive Black KNB dye according to claim 5, characterized by the fact that, The second stirring mechanism further includes a stirring plate, a plug rod, and a second nut. The plug rod penetrates the two connecting rods arranged above and below from top to bottom. The stirring plate is rotatably arranged on the connecting rod. The lower end of the plug rod is fixed by the second nut.

8. The continuous apparatus for the de-esterification reaction of Reactive Black KNB dye according to claim 1, characterized by, The utility model further includes a third stirring mechanism arranged at the bottom end of the stirring shaft. The third stirring mechanism includes stirring blades arranged in a rice-shaped cross. The stirring blades are in close contact with the bottom of the stirring tank.

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