Dust removal device for preparing hydrogen fluoride from fluorite powder

Abstract

The utility model discloses a dust removal device for preparing hydrogen fluoride from fluorite powder, and belongs to the field of dust removal devices.The dust removal device comprises a rotary furnace, an acid inlet assembly is arranged on the left side of the rotary furnace and comprises an acid mixing box, the acid mixing box is fixedly connected with the left side of the rotary furnace, and a gas outlet pipe is fixedly connected to the upper portion of the acid mixing box; a conveying pipe movably penetrates through the upper portion of the acid mixing box, an air outlet head is fixedly connected to the lower portion of the conveying pipe, the right side of the conveying pipe is connected with an air suction pump through a hose pipeline, the air suction pump is fixedly installed on the left side of the rotary furnace, the acid inlet assembly further comprises a valve, and the valve is fixedly connected with the lower portion of the acid mixing box. The acid feeding assembly is arranged to mix acid liquor, then the acid liquor is input into the rotary furnace to enable mixed acid to react with fluorite powder, gas generated in the reaction can be absorbed by the acid feeding assembly and then soaked into the acid liquor, impurities in the gas can be absorbed by the mixed acid, and the effect that dust removal treatment of the gas can be conducted more safely is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of dust removal devices, in particular to a dust removal device for preparing hydrogen fluoride from fluorite powder. BACKGROUND

[0002] Hydrogen fluoride is a colorless gas; below 80 DEG C, due to the existence of hydrogen bonds between molecules, it becomes an associated body (HF)n. The dielectric constant of liquid hydrogen fluoride is very high, and it is an excellent solvent capable of dissolving many inorganic and organic compounds. It is an important chemical product in industry. In the preparation of hydrogen fluoride, in order to ensure that hydrogen fluoride gas is not leaked, a negative pressure operation is generally adopted, that is, a method for drawing hydrogen fluoride gas in the reaction furnace through a gas guide pipe arranged on the cover of the rotary furnace by using an air pump. Since the extracted hydrogen fluoride gas still contains a lot of unreacted fluorite powder particles and water vapor, directly feeding the mixed gas containing impurities into the next process will increase the burden of the next process and waste resources. If the impurities can be recycled in the rotary furnace, the conversion rate of hydrogen fluoride gas can be effectively improved.

[0003] The patent document with the publication number CN211470776U discloses a hydrogen fluoride gas dust removal structure of a rotary furnace for preparing hydrogen fluoride, which relates to a dust removal device. The cover is rotatably and sealingly connected to one end of the rotary furnace. A mixed acid feeding pipe penetrating through the cavity A and the cavity B is arranged between the center part of the cover and the bottom of the mixed acid tank. A hemispherical cover plate is arranged at the bottom of the cavity A. A plurality of gas permeable holes are arranged on the hemispherical cover plate in an interval. A connecting gas pipe penetrating through the cavity A and the cavity B is arranged between the bottom surface of the mixed acid tank below the hemispherical cover plate and the upper part of the cover. In the above-mentioned application document, the hydrogen fluoride gas generated by the reaction of the rotary furnace is drawn into the mixed acid tank by using the air pump, and the hemispherical cover plate is used for blocking, so that the impurities carried by the hydrogen fluoride gas are absorbed by the mixed acid, thereby improving the conversion rate of the hydrogen fluoride gas. However, the air pump is arranged below the mixed acid tank and communicates with the mixed acid tank. The acid liquid in the mixed acid tank is easy to leak into the air pump, thereby damaging the air pump, and it is not convenient to safely put the gas into the mixed acid. Content of the utility model

[0004] The utility model provides a fluorite powder preparation hydrogen fluoride's dust collector, solve the problem that the above background technique has proposed. In order to realize above -mentioned purpose, the utility model discloses the following technical scheme to be realized: a fluorite powder preparation hydrogen fluoride's dust collector, including rotary furnace, the rotary furnace left side is provided with the acid inlet component, the acid inlet component includes mixed acid tank, the mixed acid tank is fixedly connected with rotary furnace left side, the mixed acid tank top fixedly connected with the gas outlet pipe, the mixed acid tank top movable penetration has the conveying pipe, the conveying pipe below fixedly connected with the gas outlet head, the conveying pipe right side is connected with the air suction pump through the hose pipeline, the air suction pump is fixedly installed in rotary furnace left side.

[0005] Preferably, the acid inlet component further comprises a valve, the valve is fixedly connected with the mixed acid tank below, and the valve is connected with the mixed acid feeding pipe through a pipeline between the valve and the rotary furnace.

[0006] Preferably, the rotary furnace left side is fixedly connected with a fluorite powder feeding port.

[0007] Preferably, the conveying pipe left side is provided with a lifting assembly, the lifting assembly includes a support sheet, the support sheet is fixedly connected with the mixed acid tank left side, the support sheet top fixedly connected with the electric push rod, the electric push rod top is provided with a rotating assembly.

[0008] Preferably, the rotating assembly includes a lifting block, the lifting block is fixedly connected with the electric push rod upper end, the lifting block right side is rotatably connected with a rotating block, the rotating block right side is fixedly connected with a connecting sleeve, and the connecting sleeve is fixedly connected with the outer surface of the conveying pipe.

[0009] Preferably, the rotating assembly further comprises a bracket block, and the bracket block is fixedly connected with the mixed acid tank top.

[0010] The application has the advantages that:

[0011] (1) the acid inlet component is arranged to mix acid liquid, and then the acid liquid is input into the rotary furnace to react the mixed acid with the fluorite powder, the gas generated by the reaction is absorbed by the acid inlet component and then immersed into the acid liquid, so that the impurities in the gas are absorbed by the mixed acid, and the dust removal treatment of the gas is more safe and convenient.

[0012] (2) the lifting assembly is arranged to drive the conveying pipe conveying the gas to rise so as to be extracted from the mixed acid tank, and the rotating assembly is arranged to adjust the orientation of the conveying pipe, so that the conveying pipe can be taken out from the mixed acid tank for maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The illustrative embodiments of the application, and their description, are included to provide a thorough understanding of the application. The description and its attendant drawings are included to explain the application and are not intended to unduly limit the scope of this application. In such drawings:

[0014] Figure 1 is the overall structure of the utility model schematic diagram;

[0015] Figure 2 is the overall structure of the utility model bottom view;

[0016] Figure 3 is the overall structure of the utility model sectional view;

[0017] Figure 4 is the overall structure of the utility model Figure 1 A structure enlarged schematic view in the above figure.

[0018] In the above figure,

[0019] 1, rotary furnace;2, acid inlet assembly;201, mixed acid tank;202, gas outlet pipe;203, conveying pipe;204, gas outlet head;205, hose;206, suction pump;207, valve;208, mixed acid inlet pipe;3, fluorite powder inlet;4, lifting assembly;401, support sheet;402, electric push rod;5, rotating assembly;501, lifting block;502, rotating block;503, connecting sleeve;504, frame block. DETAILED DESCRIPTION

[0020] In order to make the person skilled in the art better understand the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. EMBODIMENTS

[0022] Reference Figures 1-4The embodiment provides a dust removal device for preparing hydrogen fluoride from fluorite powder, which comprises a rotary furnace 1, an acid inlet assembly 2 arranged on the left side of the rotary furnace 1, the acid inlet assembly 2 comprising a mixed acid tank 201, two acid liquid adding inlets arranged on the left side of the mixed acid tank 201, the mixed acid tank 201 being fixedly connected to the left side of the rotary furnace 1, a gas outlet pipe 202 fixedly connected to the top of the mixed acid tank 201, a conveying pipe 203 movably penetrating the top of the mixed acid tank 201, a through hole arranged on the top of the mixed acid tank 201 and used for penetrating the conveying pipe 203, a gas outlet head 204 fixedly connected to the lower side of the conveying pipe 203, a through hole arranged on the gas outlet head 204 and used for gas outlet, the outer diameter of the gas outlet head 204 being smaller than the outer diameter of the conveying pipe 203, a suction pump 206 connected to the right side of the conveying pipe 203 through a hose 205, the suction pump 206 being fixedly installed on the left side of the rotary furnace 1 and being communicated with the rotary furnace 1 and used for sucking gas in the rotary furnace 1, a valve 207 fixedly connected to the lower side of the mixed acid tank 201, a mixed acid inlet pipe 208 connected between the valve 207 and the rotary furnace 1, the mixed acid inlet pipe 208 being in the shape of L, and a fluorite powder inlet 3 fixedly connected to the left side of the rotary furnace 1 and used for adding fluorite powder into the rotary furnace 1.

[0023] In specific use, the above device adds acid liquid through the two acid liquid adding inlets on the left side of the mixed acid tank 201, mixes the acid liquid in the mixed acid tank 201, adds fluorite powder into the rotary furnace 1 through the fluorite powder inlet 3, opens the valve 207 to make the mixed acid enter the rotary furnace 1 through the mixed acid inlet pipe 208, so that the mixed acid reacts with the fluorite powder, gas is generated in the rotary furnace 1, the suction pump 206 is started to suck the gas in the rotary furnace 1, the gas is conveyed into the conveying pipe 203 through the hose 205 and sprayed out from the gas outlet head 204 below the conveying pipe 203, and the sprayed gas enters the acid liquid in the mixed acid tank 201, the acid liquid absorbs the dust impurities in the gas, and the remaining gas is discharged through the gas outlet pipe 202 after floating on the acid liquid. EMBODIMENT

[0024] REFERENCE Figures 1-4On the basis of embodiment one, the left side of the conveying pipe 203 is provided with a lifting assembly 4, the lifting assembly 4 comprises a support sheet 401, the shape of the support sheet 401 is square, the support sheet 401 is fixedly connected with the left side of the mixed acid tank 201, the support sheet 401 is arranged at the lower position of the left side of the mixed acid tank 201, an electric push rod 402 is fixedly connected above the support sheet 401, a rotating assembly 5 is arranged above the electric push rod 402, the rotating assembly 5 comprises a lifting block 501, the lifting block 501 is fixedly connected with the upper end of the electric push rod 402, the electric push rod 402 can push the lifting block 501 to lift, a rotating block 502 is rotatably connected with the right side of the lifting block 501, a connecting sleeve 503 is fixedly connected with the right side of the rotating block 502, the connecting sleeve 503 is fixedly connected with the outer surface of the conveying pipe 203, the connecting sleeve 503 can drive the conveying pipe 203 to rotate and adjust under the action of the rotating block 502, the rotating assembly 5 further comprises a bracket block 504, the bracket block 504 is used for supporting the conveying pipe 203, the bracket block 504 is fixedly connected with the upper side of the mixed acid tank 201, the shape of the bracket block 504 is U-shaped.

[0025] When the conveying pipe 203 and the gas outlet head 204 are immersed in the acid liquid in actual use, the electric push rod 402 is started to be elongated, the electric push rod 402 pushes the lifting block 501 to rise, the lifting block 501 drives the rotating block 502 and the connecting sleeve 503 to pull the conveying pipe 203, so that the conveying pipe 203 is pulled out from the mixed acid tank 201, at this time, the rotating block 502 is rotated to drive the connecting sleeve 503 to adjust the orientation of the conveying pipe 203, so that the conveying pipe 203 is oriented to the front, then the electric push rod 402 is started to be retracted, the conveying pipe 203 is supported by the bracket block 504 after descending, so that the conveying pipe 203 and the gas outlet head 204 are conveniently maintained and repaired.

[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A dust removal device for preparing hydrogen fluoride from fluorite powder, comprising a rotary kiln (1), characterized in that, Acid inlet assembly (2) is provided on the left side of the rotary kiln (1). The acid inlet assembly (2) includes a mixed acid tank (201). The mixed acid tank (201) is fixedly connected to the left side of the rotary kiln (1). An exhaust pipe (202) is fixedly connected above the mixed acid tank (201). A conveying pipe (203) is movably passed through the mixed acid tank (201). An exhaust head (204) is fixedly connected below the conveying pipe (203). A suction pump (206) is connected to the right side of the conveying pipe (203) through a hose (205). The suction pump (206) is fixedly installed on the left side of the rotary kiln (1).

2. The dust removal device for preparing hydrogen fluoride from fluorite powder according to claim 1, characterized in that, The acid inlet assembly (2) also includes a valve (207), which is fixedly connected to the bottom of the mixed acid tank (201), and a mixed acid feed pipe (208) is connected between the valve (207) and the rotary kiln (1).

3. The dust removal device for preparing hydrogen fluoride from fluorite powder according to claim 2, characterized in that, The rotary kiln (1) is fixedly connected to the left side of the fluorite powder inlet (3).

4. The dust removal device for preparing hydrogen fluoride from fluorite powder according to claim 3, characterized in that, A lifting assembly (4) is provided on the left side of the conveying pipe (203). The lifting assembly (4) includes a support plate (401). The support plate (401) is fixedly connected to the left side of the mixed acid tank (201). An electric push rod (402) is fixedly connected above the support plate (401). A rotating assembly (5) is provided above the electric push rod (402).

5. The dust removal device for preparing hydrogen fluoride from fluorite powder according to claim 4, characterized in that, The rotating assembly (5) includes a lifting block (501), which is fixedly connected to the upper end of the electric push rod (402). A rotating block (502) is rotatably connected to the right side of the lifting block (501), and a connecting sleeve (503) is fixedly connected to the right side of the rotating block (502). The connecting sleeve (503) is fixedly connected to the outer surface of the conveying pipe (203).

6. The dust removal device for preparing hydrogen fluoride from fluorite powder according to claim 5, characterized in that, The rotating assembly (5) also includes a frame block (504), which is fixedly connected to the top of the mixed acid tank (201).

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