Continuous extraction device for nitration waste acid

Abstract

The utility model discloses a continuous extraction device for nitrification waste acid, which comprises a separation mechanism, an extraction mechanism is mounted on the right side of the separation mechanism, and a distillation mechanism is mounted on the right side of the extraction mechanism. The separation mechanism comprises a first supporting column, a liquid storage box, a funnel, a clamping groove, a filter screen, a handle, a fixing block, a first liquid conveying pump and a first liquid conveying pipe, the liquid storage box is fixedly connected to the upper side of the first supporting column, and the extraction mechanism comprises a second supporting column, an extraction device, a liquid inlet, a second liquid conveying pump and a second liquid conveying pipe. The distillation mechanism comprises a third supporting column, a protective shell, a heating plate, a liquid containing box, a cover plate, a liquid inlet pipe, a steam outlet, a steam purifier and a discharging pipe, and the right side of the second liquid conveying pipe is fixedly connected to the upper side of the liquid inlet pipe. By means of the structure, impurities in waste acid can be filtered out, the concentration of the waste acid after extraction is improved, and the waste acid is more suitable for being reused.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitration waste acid extraction technical field, especially in nitration waste acid's continuous extraction device. BACKGROUND

[0002] Nitration waste acid, also known as waste sulfuric acid, is a waste in industrial production, and nitration waste acid mainly comes from the production process of chemical industry, metallurgy, pharmaceutical industry and other industries. For example, in the nitration process of organic matter, with the reaction, the concentration of sulfuric acid gradually reduces, when the concentration of sulfuric acid reduces to a certain degree, the rate of sulfonation reaction will slow down significantly, at this time, the waste acid produced is nitration waste acid. In addition, a large amount of waste acid is also produced in the process of titanium dioxide production, steel pickling and the like. Nitration waste acid is a viscous liquid with black and red color, unstable in nature and emitting special odor. Because nitration waste acid contains high concentration of sulfuric acid and various harmful substances, it cannot be directly discharged into the environment. At present, waste acid recovery as a more effective waste acid treatment method to replace waste acid neutralization method, the commonly used treatment method has extraction method, resin adsorption method, oxidation method, wherein the extraction method is to extract harmful substances in waste acid by extractant to realize the purification of waste acid. The waste acid after extraction can be reused in production, reducing the demand for new acid.

[0003] After the existing nitration waste acid is extracted, the concentration is often not high enough, it is difficult to meet the conditions for reuse, and there are often impurities in the waste acid just taken out, affecting the extraction of waste acid. Therefore, we propose a continuous extraction device for nitration waste acid to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a continuous extraction device for nitration waste acid, which can separate solid impurities in waste acid through a separation mechanism, make the waste acid cleaner, extract harmful substances in nitration waste acid through an extraction mechanism, realize the purification and recycling of waste acid, and make the concentration of extracted low-concentration acid liquid higher through a distillation mechanism, so as to meet the standard for reuse.

[0005] To achieve the above object, a continuous extraction device for nitration waste acid is provided, which comprises a separation mechanism, an extraction mechanism is installed on the right side of the separation mechanism, and a distillation mechanism is installed on the right side of the extraction mechanism.

[0006] Preferably, the separation mechanism comprises a first support column, a liquid storage tank, a funnel, a clamping groove, a filter screen, a handle, a fixed block, a first infusion pump and a first infusion tube, and the liquid storage tank is fixedly connected to the upper side of the first support column.

[0007] Preferably, the funnel is fixedly connected to the upper side of the liquid storage tank, the clamping groove is arranged on the upper side of the funnel, the filter screen is clamped in the interior of the funnel, the handle is arranged on the upper end of the left and right two side plates of the filter screen, the fixing block is fixedly connected to the outer wall of the filter screen, the fixing block is clamped in the interior of the clamping groove, the first infusion tube is fixedly connected to the lower side of the liquid storage tank, and the first infusion pump is fixedly connected to the middle of the first infusion tube.

[0008] Preferably, the extraction mechanism comprises a second supporting column, an extraction device, a liquid inlet, a second infusion pump and a second infusion tube, and the extraction device is fixedly connected to the upper side of the second supporting column.

[0009] Preferably, the liquid inlet is fixedly connected to the upper end of the left wall of the extraction device, the second infusion tube is fixedly connected to the lower end of the right wall of the extraction device, the second infusion pump is fixedly connected to the middle of the second infusion tube, and the first infusion tube is fixedly connected to the left side of the liquid inlet.

[0010] Preferably, the distillation mechanism comprises a third supporting column, a protective shell, a heating plate, a liquid containing tank, a cover plate, a liquid inlet pipe, a steam outlet, a steam purifier and a discharge pipe, the right side of the second infusion tube is fixedly connected to the upper side of the liquid inlet pipe, and the protective shell is fixedly connected to the upper side of the third supporting column.

[0011] Preferably, the heating plate is fixedly connected to the bottom of the inner wall of the protective shell, the liquid containing tank is arranged on the upper side of the heating plate, the discharge pipe is fixedly connected to the right side of the protective shell, the cover plate is fixedly connected to the upper side of the protective shell, the liquid inlet pipe is fixedly connected to the left side of the upper wall of the cover plate, the steam outlet is fixedly connected to the middle of the upper wall of the cover plate, and the steam purifier is fixedly connected to the middle of the steam outlet.

[0012] The separation mechanism can separate solid impurities in waste acid, so that the waste acid is cleaner, the extraction mechanism can extract harmful substances in nitration waste acid, realizes purification and recycling of the waste acid, and the distillation mechanism can make the concentration of the extracted low-concentration acid liquid high through distillation, so that the low-concentration acid liquid meets the standard for reuse.

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

[0014] The present application will be further described below in combination with the drawings and embodiments.

[0015] Fig. 1 It is a perspective view of the continuous extraction device for nitration waste acid.

[0016] Fig. 2The utility model relates to a continuous extraction device's separation mechanism structure schematic view of nitration waste acid,

[0017] Fig. 3 The utility model relates to a continuous extraction device's extraction mechanism structure schematic view of nitration waste acid,

[0018] Fig. 4 The utility model relates to a continuous extraction device's distillation mechanism structure schematic view of nitration waste acid,

[0019] Legend:

[0020] 1, separation mechanism, 101, first support column, 102, liquid storage tank, 103, funnel, 104, clamping groove, 105, filter screen, 106, handle, 107, fixed block, 108, first infusion pump, 109, first infusion tube, 2, extraction mechanism, 201, second support column, 202, extraction device, 203, liquid inlet, 204, second infusion pump, 205, second infusion tube, 3, distillation mechanism, 301, third support column, 302, protective housing, 303, heating plate, 304, liquid storage tank, 305, cover plate, 306, liquid inlet pipe, 307, steam outlet, 308, steam purifier, 309, discharge pipe. Specific embodiments

[0021] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] Embodiment:

[0023] Refer to Figs. 1 to 4 The utility model discloses a kind of continuous extraction device of nitration waste acid, it includes separation mechanism 1, separation mechanism 1 right side is equipped with extraction mechanism 2, extraction mechanism 2 right side is equipped with distillation mechanism 3.

[0024] The separating mechanism 1 includes a first supporting column 101, a liquid storage tank 102, a funnel 103, a clamping groove 104, a filter screen 105, a handle 106, a fixing block 107, a first infusion pump 108, and a first infusion pipe 109. The liquid storage tank 102 is fixedly connected to the upper side of the first supporting column 101. The funnel 103 is fixedly connected to the upper side of the liquid storage tank 102. The clamping groove 104 is arranged on the upper side of the funnel 103. The filter screen 105 is clamped in the funnel 103. The handle 106 is arranged on the upper end of the left and right two side plates of the filter screen 105. The fixing block 107 is fixedly connected to the outer wall of the filter screen 105. The fixing block 107 is clamped in the clamping groove 104. The first infusion pipe 109 is fixedly connected to the lower side of the liquid storage tank 102. The first infusion pump 108 is fixedly connected to the middle of the first infusion pipe 109. The removed nitration waste acid is placed above the filter screen 105. The filter screen 105 filters out solid impurities. Then the waste acid enters the liquid storage tank 102 through the funnel 103. The fixing block 107 and the clamping groove 104 make the funnel 103 more fixed. The first infusion pump 108 transports the waste acid to the extraction mechanism 2 through the first infusion pipe 109.

[0025] The extraction mechanism 2 includes a second supporting column 201, an extraction device 202, an inlet 203, a second infusion pump 204, and a second infusion pipe 205. The extraction device 202 is fixedly connected to the upper side of the second supporting column 201. The inlet 203 is fixedly connected to the upper end of the left wall of the extraction device 202. The second infusion pipe 205 is fixedly connected to the lower end of the right wall of the extraction device 202. The second infusion pump 204 is fixedly connected to the middle of the second infusion pipe 205. The first infusion pipe 109 is fixedly connected to the left side of the inlet 203. The waste acid enters the extraction device 202 from the inlet 203 to extract the waste acid. Then the extracted waste acid is transported to the distillation mechanism 3 through the second infusion pipe 205 by the second infusion pump 204.

[0026] The distillation mechanism 3 comprises a third supporting column 301, a protective shell 302, a heating plate 303, a liquid tank 304, a cover plate 305, a liquid inlet pipe 306, a steam outlet 307, a steam purifier 308 and a discharge pipe 309, the second liquid conveying pipe 205 is fixedly connected to the upper side of the liquid inlet pipe 306, and the protective shell 302 is fixedly connected to the upper side of the third supporting column 301. The heating plate 303 is fixedly connected to the bottom of the inner wall of the protective shell 302, the liquid tank 304 is installed on the upper side of the heating plate 303, the discharge pipe 309 is fixedly connected to the right side of the protective shell 302, the cover plate 305 is fixedly connected to the upper side of the protective shell 302, the liquid inlet pipe 306 is fixedly connected to the left side of the upper wall of the cover plate 305, the steam outlet 307 is fixedly connected to the middle of the upper wall of the cover plate 305, and the steam purifier 308 is fixedly connected to the middle of the steam outlet 307. The extracted waste acid enters the liquid tank 304 through the liquid inlet pipe 306, the heating plate 303 is started to heat the liquid tank 304 so that the water in the waste acid is evaporated, the evaporated waste acid is purified through the steam purifier 308 and then discharged through the steam outlet 307, and the concentrated waste acid is discharged through the discharge pipe 309.

[0027] Working principle: when in use, the extracted nitration waste acid is placed above the filter screen 105, the filter screen 105 filters out the solid impurities, then the waste acid enters the liquid storage tank 102 through the funnel 103, after filtration, the handle 106 is pulled upwards to make the fixed block 107 leave the clamping groove 104, the filter screen 105 leaves the funnel 103, and a new filter screen 105 is replaced, then the first liquid conveying pump 108 is started to convey the waste acid to the extraction mechanism 2 through the first liquid conveying pipe 109, the waste acid enters the extraction device 202 through the liquid inlet 203 to extract the waste acid, then the second liquid conveying pump 204 is started to convey the extracted waste acid to the distillation mechanism 3 through the second liquid conveying pipe 205, the extracted waste acid enters the liquid tank 304 through the liquid inlet pipe 306, the heating plate 303 is started to heat the liquid tank 304 so that the water in the waste acid is evaporated, the evaporated waste acid is purified through the steam purifier 308 and then discharged through the steam outlet 307, and the concentrated waste acid is discharged through the discharge pipe 309.

[0028] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A continuous extraction apparatus for nitrated spent acid comprising a separation mechanism (1), characterized in that, The separation mechanism (1) right side is installed with the extraction mechanism (2), the extraction mechanism (2) right side is installed with the distillation mechanism (3), in which the separation mechanism (1) includes first support column (101), liquid storage tank (102), funnel (103), clamping groove (104), filter screen (105), handle (106), fixed block (107), first infusion pump (108), first infusion tube (109).

2. A continuous extraction apparatus for nitration waste acid according to claim 1, wherein The liquid storage tank (102) is fixedly connected to the upper side of the first support column (101).

3. A continuous extraction apparatus for nitration waste acid according to claim 2, wherein The funnel (103) is fixedly connected to the upper side of the liquid storage tank (102), the clamping groove (104) is arranged on the upper side of the funnel (103), the filter screen (105) is clamped inside the funnel (103), the handle (106) is arranged on the upper end of the left and right two side plates of the filter screen (105), the fixed block (107) is fixedly connected to the outer wall of the filter screen (105), the fixed block (107) is clamped inside the clamping groove (104), the first infusion tube (109) is fixedly connected to the lower side of the liquid storage tank (102), and the first infusion pump (108) is fixedly connected to the middle of the first infusion tube (109).

4. A continuous extraction apparatus for nitration waste acid according to claim 2, wherein The extraction mechanism (2) includes second support column (201), extraction device (202), liquid inlet (203), second infusion pump (204), second infusion tube (205), and the extraction device (202) is fixedly connected to the upper side of the second support column (201).

5. A continuous extraction apparatus for nitration waste acid according to claim 4, wherein The liquid inlet (203) is fixedly connected to the upper end of the left wall of the extraction device (202), the second infusion tube (205) is fixedly connected to the lower end of the right wall of the extraction device (202), the second infusion pump (204) is fixedly connected to the middle of the second infusion tube (205), and the first infusion tube (109) is fixedly connected to the left side of the liquid inlet (203).

6. A continuous extraction apparatus for nitration waste acid according to claim 4, wherein The distillation mechanism (3) includes third support column (301), protective shell (302), heating plate (303), liquid tank (304), cover plate (305), liquid inlet pipe (306), steam outlet (307), steam purifier (308), discharge pipe (309), the second infusion tube (205) is fixedly connected to the upper side of the liquid inlet pipe (306) on the right side, and the protective shell (302) is fixedly connected to the upper side of the third support column (301).

7. A continuous extraction apparatus for nitration waste acid according to claim 6, wherein The heating plate (303) is fixedly connected to the inner wall bottom of the protective shell (302), the liquid tank (304) is installed on the upper side of the heating plate (303), the discharge pipe (309) is fixedly connected to the right side of the protective shell (302), the cover plate (305) is fixedly connected to the upper side of the protective shell (302), the liquid inlet pipe (306) is fixedly connected to the left side of the upper wall of the cover plate (305), the steam outlet (307) is fixedly connected to the middle of the upper wall of the cover plate (305), and the steam purifier (308) is fixedly connected to the middle of the steam outlet (307).

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