Efficient hydrogen fluoride purification device

Abstract

The utility model discloses an efficient hydrogen fluoride purification device, which relates to the technical field of hydrogen fluoride purification devices and comprises an adsorption tower, a feeding device, a liquid circulating device, a constant temperature device, a medicine putting device, a crude hydrogen fluoride condensing device and a pure hydrogen fluoride condensing device. The feeding device comprises a feeding pipeline fixedly connected to the upper side of the left end of the adsorption tower, the other end of the feeding pipeline is fixedly connected with one end of the filter box, and the liquid circulation device comprises an inner circulation arranged in the adsorption tower and an outer backflow arranged on the outer side of the adsorption tower; the internal circulation comprises a circulation plate fixedly connected to the inner bottom wall of the adsorption tower and spraying equipment fixedly connected to the inner top wall of the adsorption tower. By arranging the air inlet device, a stable and effective cooling measure is conveniently provided for extraction of hydrogen fluoride, and the purification quality of the hydrogen fluoride is improved; and the filtering mechanism is arranged, so that the purified gas can be preliminarily filtered, and the purification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fluoride purification devices, in particular to a high-efficiency hydrogen fluoride purification device. Background Art

[0002] Anhydrous hydrogen fluoride is a widely used chemical product. It is a colorless fuming liquid with a concentration of more than 99% hydrofluoric acid and is easily vaporized under reduced pressure or high temperature.

[0003] For example, the Chinese patent with application number "CN202321488389.X" is named: "A circulating washing device for purifying hydrogen fluoride", including a bracket, a washing tank, a gas circulation component and a liquid circulation component. The internal circulation is composed of a stroke plate in the bottom liquid chamber and a top purification chamber spray device. The gas circulation component includes a gas circulation pipe, a valve body and an air pipe. The liquid circulation component includes a liquid circulation pump, a liquid inlet pipe and a liquid extraction pipe. The spray device includes a pressure pump, a liquid concentration chamber and a concentration cover. The utility model belongs to the technical field of hydrogen fluoride production, and specifically is a circulating washing device for purifying hydrogen fluoride. It effectively solves the problem that the prior art cannot effectively extend the residence time of the gas in the tower body and the flow path, and cannot effectively make the water washing liquid fully contact with the gas, resulting in poor spray washing effect. It is a circulating washing device for purifying hydrogen fluoride.

[0004] Its structural design does not provide adequate cooling measures for hydrogen fluoride extraction, which reduces the purification quality of hydrogen fluoride. In addition, no filtering mechanism is provided, so the purified gas cannot be initially filtered, which reduces the purification efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-efficiency hydrogen fluoride purification device, which provides a stable and effective cooling measure for the extraction of hydrogen fluoride by setting an air intake device, thereby improving the purification quality of hydrogen fluoride; and provides a filtering mechanism to facilitate preliminary filtration of the purified gas, thereby improving the purification efficiency.

[0006] The utility model also provides a high-efficiency hydrogen fluoride purification device as described above, comprising: an adsorption tower, a feeding device, a liquid circulation device, a constant temperature device, a drug delivery device, a crude hydrogen fluoride condensation device and a pure hydrogen fluoride condensation device, wherein a feeding device is arranged above the adsorption tower, wherein the feeding device comprises a feeding pipeline fixedly connected to the upper side of the left end of the adsorption tower, wherein the other end of the feeding pipeline is fixedly connected to one end of a filter box, wherein a purification layer is arranged at the middle end of the inner part of the filter box, wherein a filter screen is arranged at the left side of the inner part of the filter box, wherein the liquid circulation device comprises an inner circulation arranged inside the adsorption tower and an outer reflux arranged outside the adsorption tower, wherein the inner circulation comprises a circulation plate fixedly connected to the inner bottom wall of the adsorption tower and a spray device fixedly connected to the inner top wall of the adsorption tower, wherein the outer reflux comprises a liquid suction pipe fixedly connected to one side of the adsorption tower, wherein the side of the liquid suction pipe away from the adsorption tower is fixedly connected to a pump body, wherein the output end of the pump body is fixedly connected to a liquid infusion pipe, wherein the end of the liquid infusion pipe away from the pump body is fixedly connected to one side of the upper end of the adsorption tower.

[0007] According to the described high-efficiency hydrogen fluoride purification device, the spraying equipment includes a pressure pump arranged inside an adsorption tower, a spray plate is fixed to the output end of the pressure pump, a plurality of evenly distributed spray holes are arranged below the spray plate, and a collecting pipe is fixedly connected to the inner wall of the adsorption tower and located below the spray plate.

[0008] According to the high-efficiency hydrogen fluoride purification device, the constant temperature device includes a water tank fixedly connected to one side of the adsorption tower, a water pump is fixedly connected to the upper side of the water tank, and a circulation pipe is fixedly connected to the output end of the water pump.

[0009] According to the described high-efficiency hydrogen fluoride purification device, the drug configuration device includes a configuration box fixedly connected to the right side of the adsorption tower, a motor is fixedly connected to the top of the configuration box, a stirring blade is fixedly connected to the output end of the motor, a feed pipe is provided below the configuration box, and one end of the feed pipe away from the configuration box is fixedly connected to one side of the adsorption tower through an electric switch valve.

[0010] According to the described high-efficiency hydrogen fluoride purification device, the crude hydrogen fluoride condensation device includes a first condensation tank fixedly connected to one side of the filter box, a first condensation pipe is arranged inside the first condensation tank, and the first condensation tank is connected to one side of the filter box through an output pump.

[0011] According to the described high-efficiency hydrogen fluoride purification device, the described pure hydrogen fluoride condensation device includes a second condensation tank arranged at the rear side of the adsorption tower, the inner wall of the second condensation tank is provided with a second condensation pipe, and the upper part of the second condensation tank is connected to the upper end of the second condensation tank through a connecting pipe.

[0012] According to the high-efficiency hydrogen fluoride purification device, there are multiple circulation plates, and the multiple circulation plates are staggeredly distributed on the inner wall of the adsorption tower.

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

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a high-efficiency hydrogen fluoride purification device of the utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of a filter box of a high-efficiency hydrogen fluoride purification device of the utility model;

[0017] Figure 3 This is a front view structural diagram of an adsorption tower of a high-efficiency hydrogen fluoride purification device of the utility model;

[0018] Figure 4 This is a structural diagram of a spray plate and a collecting pipe of a high-efficiency hydrogen fluoride purification device of the utility model;

[0019] Figure 5 This is an internal structure diagram of a first condensing tank and a second condensing tank of a hydrogen fluoride efficient purification device of the utility model;

[0020] Figure 6 This is a configuration box structure diagram of a high-efficiency hydrogen fluoride purification device of the utility model.

[0021] Legend:

[0022] 1. Adsorption tower; 2. Feed device; 21. Feed pipeline; 22. Filter box; 23. Purification layer; 24. Filter screen; 3. Circulation device; 31. Circulation plate; 32. Spraying equipment; 33. Suction pipe; 34. Pump body; 35. Infusion pipe; 321. Pressure pump; 322. Spraying plate; 323. Spray hole; 324. Collecting pipe; 4. Constant temperature device; 41. Water tank; 42. Water pump; 43. Circulation pipe; 5. Drug preparation device; 501. Preparation box; 502. Motor; 503. Stirring blade; 504. Feeding pipe; 6. Crude hydrogen fluoride condensation device; 601. First condensation tank; 602. First condensation tube; 7. Pure hydrogen fluoride condensation device; 701. Second condensation tank; 702. Second condensation tube. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-6 The utility model embodiment provides a high-efficiency hydrogen fluoride purification device, which includes: an adsorption tower 1, a feeding device 2, a liquid circulation device 3 and a constant temperature device 4, and an air outlet pipe is arranged above the adsorption tower 1, and a feeding device 2 is arranged above the adsorption tower 1. The feeding device 2 includes a feeding pipeline 21 fixedly connected to the upper side of the left end of the adsorption tower 1, and the other end of the feeding pipeline 21 is fixedly connected to one end of a filter box 22. A purification layer 23 is arranged at the middle end of the filter box 22, and a filter screen 24 is arranged on the left side of the filter box 22, and the number of the filter screens 24 is multiple and evenly distributed on the inner wall of the filter box 22. When transporting liquid hydrogen fluoride, the filter screen 24 filters out impurities contained in the hydrogen fluoride, and the purification layer 23 further purifies the hydrogen fluoride and removes some other chemical elements, and transports the hydrogen fluoride to the adsorption tower through the feeding pipeline 21. In the tower 1, the liquid circulation device 3 includes an internal circulation arranged inside the adsorption tower 1 and an external reflux arranged outside the adsorption tower 1. The internal circulation includes a circulation plate 31 fixedly connected to the inner bottom wall of the adsorption tower 1 and a spray device 32 fixedly connected to the inner top wall of the adsorption tower 1. There are multiple circulation plates 31, and multiple circulation plates 31 are staggered on the inner wall of the adsorption tower 1. The circulation plate 31 is used to extend the residence time of the gas in the adsorption tower 1. The external reflux includes a suction pipe 33 fixedly connected to one side of the adsorption tower 1. The side of the suction pipe 33 away from the adsorption tower 1 is fixedly connected to a pump body 34, and the output end of the pump body 34 is fixedly connected to a liquid infusion pipe 35. The end of the liquid infusion pipe 35 away from the pump body 34 is fixedly connected to one side of the upper end of the adsorption tower 1. The suction pipe 33 and the liquid infusion pipe 35 are used to facilitate the transportation of the washing liquid.

[0025] The spraying device 32 includes a pressure pump 321 disposed inside the adsorption tower 1, a spray plate 322 is fixed to the output end of the pressure pump 321, a plurality of evenly distributed spray holes 323 are disposed below the spray plate 322, and a collecting pipe 324 is fixedly connected to the inner wall of the adsorption tower 1 and located below the spray plate 322. The pressure pump 321 outputs the spray plate 322 to facilitate the washing liquid to be sprayed out through the spray holes 323.

[0026] The thermostat 4 includes a water tank 41 fixedly connected to one side of the adsorption tower 1, a water pump 42 fixedly connected to one side above the water tank 41, and a circulation pipe 43 fixedly connected to the output end of the water pump 42. The thermostat 4 facilitates sufficient cooling of the adsorption tower 1, and the water pump 42 can extract the coolant in the water tank 41 and transport it to the circulation pipe 43, and the circulation pipe 43 is fixed to the outer wall of the adsorption tower 1 in a spiral shape, and the thermostat 4 can circulate the coolant.

[0027] The drug dispensing device 5 includes a dispensing box 501 fixedly connected to the right side of the adsorption tower 1, a motor 502 is fixedly connected to the top of the dispensing box 501, a stirring blade 503 is fixedly connected to the output end of the motor 502, and the stirring blade 503 is output by the motor 502 to facilitate stirring the added drug, and a feed pipe 504 is arranged below the dispensing box 501, and one end of the feed pipe 504 away from the dispensing box 501 is fixedly connected to one side of the adsorption tower 1 through an electric switch valve, and the drug is conveniently introduced into the adsorption tower 1 through the feed pipe 504. The drug dispensing device 5 facilitates the addition of drugs for removing metal ions and arsenic ions into the adsorption tower 1.

[0028] The crude hydrogen fluoride condensing device 6 includes a first condensing tank 601 fixedly connected to one side of the filter box 22, a first condensing pipe 602 is arranged inside the first condensing tank 601, and the first condensing tank 601 is connected to one side of the filter box 22 through an output pump. The crude hydrogen fluoride condensing device 6 facilitates condensing gaseous hydrogen fluoride into liquid.

[0029] The pure hydrogen fluoride condensing device 7 comprises a second condensing tank 701 disposed at the rear side of the adsorption tower 1, the inner wall of the second condensing tank 701 is provided with a second condensing pipe 702, and the upper part of the second condensing tank 701 is connected to the upper end of the second condensing tank 701 through a connecting pipe. The purified hydrogen fluoride condensing device 7 facilitates condensing the purified hydrogen fluoride gas into a liquid state for subsequent use.

[0030] Working principle: When used for the first time, the device is moved to the designated position and fixed. The crude hydrogen fluoride condensing device 6 is used to condense the gaseous hydrogen fluoride into liquid, and then the liquid hydrogen fluoride is transported to the inside of the adsorption tower 1 through the feeding device 2, and the liquid hydrogen fluoride is preliminarily filtered. The liquid hydrogen fluoride is gradually vaporized and rises inside the adsorption tower 1. Under certain temperature and pressure conditions, during the rising process of the gas, the liquid circulation device 3 is used for liquid circulation, and the residence time and flow path of the gas in the adsorption tower 1 are effectively extended, so that the washing liquid is fully in contact with the gas. At the same time, during use, the constant temperature device 4 is used to provide stable and effective cooling measures for the extraction of hydrogen fluoride, thereby improving the purification quality of hydrogen fluoride. Secondly, the drug configuration device 5 is used to add agents for removing metal ions and arsenic ions into the adsorption tower 1 during purification. Secondly, the crude hydrogen fluoride condensing device 6 is used to collect the purified hydrogen fluoride, and the gaseous hydrogen fluoride is condensed into liquid, which is convenient for subsequent use.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A highly efficient hydrogen fluoride purification device, comprising: An adsorption tower (1), a feeding device (2), a liquid circulation device (3), a constant temperature device (4), a drug preparation device (5), a crude hydrogen fluoride condensation device (6) and a pure hydrogen fluoride condensation device (7), characterized in that a feeding device (2) is arranged above the adsorption tower (1), the feeding device (2) comprises a feeding pipe (21) fixedly connected to the upper left end of the adsorption tower (1), the other end of the feeding pipe (21) is fixedly connected to one end of a filter box (22), a purification layer (23) is arranged at the middle end of the filter box (22), a filter screen (24) is arranged on the left side of the filter box (22), and the liquid circulation device (5) is arranged on the lower left side of the filter box (22). The device (3) comprises an internal circulation arranged inside the adsorption tower (1) and an external reflux arranged outside the adsorption tower (1), the internal circulation comprising a circulation plate (31) fixedly connected to the inner bottom wall of the adsorption tower (1) and a spray device (32) fixedly connected to the inner top wall of the adsorption tower (1), the external reflux comprising a liquid suction pipe (33) fixedly connected to one side of the adsorption tower (1), the side of the liquid suction pipe (33) away from the adsorption tower (1) is fixedly connected to a pump body (34), the output end of the pump body (34) is fixedly connected to a liquid infusion pipe (35), and the end of the liquid infusion pipe (35) away from the pump body (34) is fixedly connected to one side of the upper end of the adsorption tower (1).

2. A highly efficient hydrogen fluoride purification device according to claim 1, characterized in that: The spraying device (32) comprises a pressure pump (321) arranged inside the adsorption tower (1); a spray plate (322) is fixed to the output end of the pressure pump (321); a plurality of evenly distributed spray holes (323) are arranged below the spray plate (322); and a collecting pipe (324) is fixedly connected to the inner wall of the adsorption tower (1) and located below the spray plate (322).

3. A highly efficient hydrogen fluoride purification device according to claim 1, characterized in that: The constant temperature device (4) comprises a water tank (41) fixedly connected to one side of the adsorption tower (1), a water pump (42) fixedly connected to the upper side of the water tank (41), and a circulation pipe (43) fixedly connected to the output end of the water pump (42).

4. A highly efficient hydrogen fluoride purification device according to claim 1, characterized in that: The drug dispensing device (5) comprises a dispensing box (501) fixedly connected to the right side of the adsorption tower (1), a motor (502) fixedly connected to the top of the dispensing box (501), a stirring blade (503) fixedly connected to the output end of the motor (502), a feed pipe (504) provided below the dispensing box (501), and an end of the feed pipe (504) away from the dispensing box (501) fixedly connected to one side of the adsorption tower (1) via an electric switch valve.

5. A highly efficient hydrogen fluoride purification device according to claim 4, characterized in that: The crude hydrogen fluoride condensing device (6) comprises a first condensing tank (601) fixedly connected to one side of the filter box (22), a first condensing pipe (602) is arranged inside the first condensing tank (601), and the first condensing tank (601) is connected to one side of the filter box (22) via an output pump.

6. A highly efficient hydrogen fluoride purification device according to claim 1, characterized in that: The pure hydrogen fluoride condensation device (7) comprises a second condensation tank (701) arranged at the rear side of the adsorption tower (1), the inner wall of the second condensation tank (701) is provided with a second condensation pipe (702), and the upper part of the second condensation tank (701) is connected to the upper end of the second condensation tank (701) through a connecting pipe.

7. The high-efficiency hydrogen fluoride purification device according to claim 1, characterized in that: There are multiple circulation plates (31), and the multiple circulation plates (31) are staggeredly distributed on the inner wall of the adsorption tower (1).

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