Hydrofluoric acid gas introducing and neutralizing device for preparing lithium fluoride

Abstract

The utility model discloses a hydrofluoric acid gas introduction neutralizing device for preparing lithium fluoride, which relates to the technical field of neutralizing devices, and comprises a neutralizing barrel, and a gas introduction unit and a liquid treatment unit which are arranged on the neutralizing barrel, the gas introduction unit comprises a bearing cylinder, a driving motor, a belt, a gas input pipe, a transverse branch pipe and fan blades; the liquid treatment unit comprises a mounting box, a pumping pump, an input vertical pipe, an output horizontal pipe and an atomizing nozzle. According to the utility model, hydrofluoric acid gas guided into the bottom end in the bearing cylinder can be guided out along with the transverse branch pipe, and the transverse branch pipe can rotate along with the bearing cylinder to help the hydrofluoric acid gas to be guided out to different directions in the neutralizing barrel; the fan blades located above the transverse branch pipe rotate along with the bearing cylinder and can blow hydrofluoric acid gas guided out of the transverse branch pipe from top to bottom to make contact with a lithium bicarbonate solution at the bottom end of the neutralization barrel, and the contact area of the hydrofluoric acid gas and the lithium bicarbonate solution is preliminarily enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of neutralization devices, and particularly relates to a neutralization device for introducing hydrofluoric acid gas in the preparation of lithium fluoride. Background Art

[0002] The prior art discloses a preparation method of lithium fluoride with the application number of CN200910221557.7, which includes the following steps: mixing high-purity lithium carbonate with pure water, introducing carbon dioxide gas, and carrying out a carbonization reaction to obtain a lithium bicarbonate solution; carrying out precision filtration on the lithium bicarbonate solution; introducing hydrofluoric acid gas into the filtered lithium bicarbonate solution and stirring to carry out a neutralization reaction. However, when the hydrofluoric acid gas contacts the lithium bicarbonate solution for the neutralization reaction, the contact between the hydrofluoric acid gas and the lithium bicarbonate solution is insufficient, resulting in incomplete reaction and affecting the efficiency of lithium fluoride preparation.

[0003] The publication (announcement) number CN117205875A discloses a neutralization device for introducing hydrofluoric acid gas in the preparation of lithium fluoride, which includes a neutralization tank. The top of the neutralization tank is provided with a feed hopper fixedly connected thereto. The side wall of the neutralization tank is fixedly connected with a heating water frame. The inner wall of the heating water frame is fixedly connected with a hydrofluoric acid raw material tank. The top of the hydrofluoric acid raw material tank is fixedly connected with an air inlet pipe communicated therewith. The top of the neutralization tank is fixedly connected with a motor. A heating mechanism is arranged in the heating water frame. The side wall of the neutralization tank is fixedly connected with a treatment tank. A purification mechanism is arranged in the treatment tank. In the present invention, the stirring rod rotates and moves up and down at the same time, so that the hydrofluoric acid gas can be in sufficient contact with the lithium bicarbonate solution, and the two are in full contact with good reaction effect; by absorbing the excess hydrofluoric acid gas, it is avoided that the hydrofluoric acid gas drifts into the atmosphere and affects the air quality.

[0004] Although the above solution improves the reaction effect between the hydrofluoric acid gas and the lithium bicarbonate solution, the introduction position of the hydrofluoric acid gas is concentrated at the bottom end inside the neutralization tank, and the contact position with the lithium bicarbonate solution is limited, resulting in a general mixing effect. Moreover, the drive and lifting adjustment of the stirring component require a large number of transmission components to cooperate, and the structure for achieving full mixing of the equipment is complex and the preparation cost is high. Therefore, we propose a neutralization device for introducing hydrofluoric acid gas in the preparation of lithium fluoride. Summary of the Utility Model

[0005] The main purpose of the present utility model is to provide a neutralization device for introducing hydrofluoric acid gas in the preparation of lithium fluoride. By setting a gas introduction unit and a liquid treatment unit, the problems of limited contact position between the hydrofluoric acid gas and the lithium bicarbonate solution resulting in a general mixing effect and the complex structure and high preparation cost of the equipment for achieving full mixing are solved.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions: A neutralization device for introducing hydrofluoric acid gas in the preparation of lithium fluoride, including a neutralization barrel, further including: a gas introduction unit and a liquid treatment unit provided on the neutralization barrel;

[0007] The gas introduction unit includes a bearing cylinder, a driving motor, a belt, a gas input pipe, a transverse branch pipe, and a fan blade. The bearing cylinder is movably embedded at the center of the top surface of the neutralization barrel. The driving motor is fixedly installed on the top surface of the neutralization barrel. The belt is simultaneously sleeved on the outer peripheral surface of the top end of the bearing cylinder and the outer peripheral surface of the output shaft of the driving motor. The gas input pipe is embedded and installed on the inner wall of the bearing cylinder through a bearing. The transverse branch pipe is fixedly installed on the outer peripheral surface of the bottom end of the bearing cylinder. The fan blade is fixedly installed on the outer peripheral surface of the middle end of the bearing cylinder and is located above the transverse branch pipe;

[0008] The liquid treatment unit includes an installation box, a pumping pump, an input vertical pipe, an output transverse pipe, and an atomizing nozzle. The installation box is fixedly installed at the bottom end of the bearing cylinder. The pumping pump is located inside the installation box. One end of the input vertical pipe penetrates the bottom surface of the installation box and is connected to the input end of the pumping pump. The output transverse pipe is embedded on the outer wall of the installation box and one end of it is connected to the output end of the pumping pump. The atomizing nozzle is fixedly installed at the other end of the output transverse pipe.

[0009] Preferably, a plurality of the fan blades are provided and are distributed in an equidistant circumferential array.

[0010] Preferably, the bearing cylinder, the gas input pipe, and the input vertical pipe are all located on the same vertical central axis.

[0011] Preferably, a liquid input pipe is fixedly provided on the top surface of the neutralization barrel.

[0012] Preferably, a disturbing transverse plate is fixedly provided on the outer peripheral surface of the bottom end of the input vertical pipe.

[0013] Preferably, a discharge pipe is fixedly installed at the bottom end of the neutralization barrel, and a valve is provided on the discharge pipe.

[0014] Preferably, support feet are fixedly provided on the outer peripheral surface of the bottom end of the neutralization barrel.

[0015] Compared with the prior art, the neutralization device for introducing hydrofluoric acid gas in the preparation of lithium fluoride of the present utility model has the following beneficial effects:

[0016] 1. In the utility model, by providing a gas introduction unit, hydrofluoric acid gas can be introduced into the interior of the bearing cylinder through a gas input pipe, and the gas input pipe embedded and installed on the inner wall of the bearing cylinder through a bearing does not affect the driving motor driving the bearing cylinder to rotate on the neutralization barrel through a belt, and the hydrofluoric acid gas introduced into the bottom end of the bearing cylinder can be discharged along the transverse branch pipe, and the transverse branch pipe can rotate with the bearing cylinder to help the hydrofluoric acid gas to be discharged to different directions inside the neutralization barrel, and at the same time, the fan blade fixedly installed on the outer peripheral surface of the middle end of the bearing cylinder and located above the transverse branch pipe can rotate with the bearing cylinder to blow the hydrofluoric acid gas discharged by the transverse branch pipe from top to bottom to contact with the lithium bicarbonate solution at the bottom end of the neutralization barrel, and the contact area between the hydrofluoric acid gas and the lithium bicarbonate solution is initially expanded.

[0017] 2. In the utility model, by setting a liquid processing unit, the pumping pump located inside the installation box can cooperate with the input vertical pipe to extract the lithium bicarbonate solution at the bottom of the neutralization barrel, and the output transverse pipe embedded in the outer wall of the installation box and one end of which is connected to the output end of the pumping pump can cooperate with the atomizing nozzle to spray the lithium bicarbonate solution into atomized form to contact with the hydrofluoric acid gas, and the output transverse pipe and the atomizing nozzle can also rotate with the transverse branch pipe to further expand the contact area between the lithium bicarbonate solution atomized liquid and the hydrofluoric acid gas. The lithium bicarbonate solution located at a low level can also change the height level to ensure a full stirring process. The equipment comprehensively improves the mixing effect and realizes a simple structure for full mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of a neutralization device for introducing hydrofluoric acid gas into the preparation of lithium fluoride according to the utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the neutralization device for introducing hydrofluoric acid gas into the preparation of lithium fluoride according to the utility model;

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0022] Figure 4 The utility model is a schematic diagram of the front view structure of a neutralization device for introducing hydrofluoric acid gas for preparing lithium fluoride.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Neutralization barrel;

[0025] 2. Gas introduction unit; 201. Bearing cylinder; 202. Driving motor; 203. Belt; 204. Gas input pipe; 205. Lateral branch pipe; 206. Fan blade;

[0026] 3. Liquid treatment unit; 301. Installation box; 302. Pump; 303. Input vertical pipe; 304. Output horizontal pipe; 305. Atomizing nozzle;

[0027] 4. Liquid input pipe;

[0028] 5. Disturbing cross plate;

[0029] 6. Discharge pipe;

[0030] 7. Support feet. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment 1

[0034] As Figure 1 , Figure 2 and Figure 3 shown, a hydrofluoric acid gas introduction and neutralization device for lithium fluoride preparation includes a neutralization barrel 1, and further includes: a gas introduction unit 2 and a liquid treatment unit 3 provided on the neutralization barrel 1;

[0035] The gas introduction unit 2 includes a carrier cylinder 201, a driving motor 202, a belt 203, a gas input pipe 204, a transverse branch pipe 205, and a fan blade 206. The carrier cylinder 201 is movably embedded in the center of the top surface of the neutralization barrel 1. The driving motor 202 is fixedly installed on the top surface of the neutralization barrel 1. The belt 203 is sleeved on the outer peripheral surface of the top end of the carrier cylinder 201 and the outer peripheral surface of the output shaft of the driving motor 202 at the same time. The gas input pipe 204 is embedded and installed on the inner wall of the carrier cylinder 201 through a bearing. The transverse branch pipe 205 is fixedly installed on the outer peripheral surface of the bottom end of the carrier cylinder 201. The fan blade 206 is fixedly installed on the outer peripheral surface of the middle end of the carrier cylinder 201 and is located above the transverse branch pipe 205.

[0036] The liquid treatment unit 3 includes an installation box 301, a pumping pump 302, an input vertical pipe 303, an output horizontal pipe 304, and an atomizing nozzle 305. The installation box 301 is fixedly installed at the bottom end of the carrier cylinder 201. The pumping pump 302 is located inside the installation box 301. One end of the input vertical pipe 303 penetrates the bottom surface of the installation box 301 and is connected to the input end of the pumping pump 302. The output horizontal pipe 304 is embedded on the outer wall of the installation box 301 and one end thereof is connected to the output end of the pumping pump 302. The atomizing nozzle 305 is fixedly installed at the other end of the output horizontal pipe 304.

[0037] Furthermore, a plurality of fan blades 206 are provided and are distributed in an equidistant circumferential array.

[0038] Furthermore, a discharge pipe 6 is fixedly installed at the bottom end of the neutralization barrel 1, and a valve is provided on the discharge pipe 6.

[0039] Furthermore, support feet 7 are fixedly provided on the outer peripheral surface of the bottom end of the neutralization barrel 1.

[0040] The gas introduction unit 2 preliminarily expands the contact area between the hydrofluoric acid gas and the lithium bicarbonate solution. Embodiment 2

[0041] As Figure 1 、 Figure 3 and Figure 4 shown, a neutralization device for introducing hydrofluoric acid gas for preparing lithium fluoride includes a neutralization barrel 1, and further includes: a gas introduction unit 2 and a liquid treatment unit 3 provided on the neutralization barrel 1;

[0042] The gas introduction unit 2 includes a carrier cylinder 201, a driving motor 202, a belt 203, a gas input pipe 204, a transverse branch pipe 205, and a fan blade 206. The carrier cylinder 201 is movably embedded in the center of the top surface of the neutralization barrel 1. The driving motor 202 is fixedly installed on the top surface of the neutralization barrel 1. The belt 203 is simultaneously sleeved on the outer peripheral surface of the top end of the carrier cylinder 201 and the outer peripheral surface of the output shaft of the driving motor 202. The gas input pipe 204 is embedded and installed on the inner wall of the carrier cylinder 201 through a bearing. The transverse branch pipe 205 is fixedly installed on the outer peripheral surface of the bottom end of the carrier cylinder 201. The fan blade 206 is fixedly installed on the outer peripheral surface of the middle end of the carrier cylinder 201 and is located above the transverse branch pipe 205;

[0043] The liquid treatment unit 3 includes a mounting box 301, a pumping pump 302, an input vertical pipe 303, an output horizontal pipe 304, and an atomizing nozzle 305. The mounting box 301 is fixedly installed at the bottom end of the carrier cylinder 201. The pumping pump 302 is located inside the mounting box 301. One end of the input vertical pipe 303 penetrates the bottom surface of the mounting box 301 and is connected to the input end of the pumping pump 302. The output horizontal pipe 304 is embedded on the outer wall of the mounting box 301 and one end thereof is connected to the output end of the pumping pump 302. The atomizing nozzle 305 is fixedly installed at the other end of the output horizontal pipe 304.

[0044] Furthermore, the carrier cylinder 201, the gas input pipe 204, and the input vertical pipe 303 are all located on the same vertical central axis.

[0045] Furthermore, a liquid input pipe 4 is fixedly provided on the top surface of the neutralization barrel 1.

[0046] Furthermore, a disturbing transverse plate 5 is fixedly provided on the outer peripheral surface of the bottom end of the input vertical pipe 303.

[0047] Furthermore, a discharge pipe 6 is fixedly installed at the bottom end of the neutralization barrel 1, and a valve is provided on the discharge pipe 6.

[0048] Through the liquid treatment unit 3, the equipment can comprehensively improve the mixing effect and achieve a full mixing structure with simplicity.

[0049] The working principle of the present utility model is as follows:

[0050] Hydrofluoric acid gas is introduced into the interior of the bearing cylinder 201 through the gas inlet pipe 204. The gas inlet pipe 204 installed on the inner wall of the bearing cylinder 201 by bearing embedding does not affect the driving motor 202 to drive the bearing cylinder 201 to rotate on the neutralization tank 1 through the belt 203. The hydrofluoric acid gas introduced into the bottom end inside the bearing cylinder 201 is exported along the transverse branch pipe 205, and the transverse branch pipe 205 rotates with the bearing cylinder 201 to help export the hydrofluoric acid gas to different positions inside the neutralization tank 1. The fan blade 206 located above the transverse branch pipe 205 rotates with the bearing cylinder 201 to blow the hydrofluoric acid gas exported by the transverse branch pipe 205 from top to bottom to contact the lithium bicarbonate solution at the bottom end of the neutralization tank 1. The pumping pump 302 located inside the installation box 301 operates to cooperate with the input vertical pipe 303 to extract the lithium bicarbonate solution at the bottom end inside the neutralization tank 1. The output horizontal pipe 304 cooperates with the atomizing nozzle 305 to atomize and spray the lithium bicarbonate solution to contact the hydrofluoric acid gas, and the output horizontal pipe 304 and the atomizing nozzle 305 also rotate with the transverse branch pipe 205 to further expand the contact area between the atomized liquid of the lithium bicarbonate solution and the hydrofluoric acid gas. The lithium bicarbonate solution at the lower level also changes the height level to ensure a sufficient stirring process.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrofluoric acid gas introduction and neutralization device for lithium fluoride preparation, comprising a neutralization barrel (1), characterized in that, It further includes: A gas introduction unit (2) and a liquid treatment unit (3) provided on the neutralization tank (1); The gas introduction unit (2) includes a carrier cylinder (201), a driving motor (202), a belt (203), a gas input pipe (204), a transverse branch pipe (205), and a fan blade (206). The carrier cylinder (201) is movably embedded at the center of the top surface of the neutralization tank (1). The driving motor (202) is fixedly installed on the top surface of the neutralization tank (1). The belt (203) is simultaneously sleeved on the outer peripheral surface of the top end of the carrier cylinder (201) and the outer peripheral surface of the output shaft of the driving motor (202). The gas input pipe (204) is embedded and installed on the inner wall of the carrier cylinder (201) through a bearing. The transverse branch pipe (205) is fixedly installed on the outer peripheral surface of the bottom end of the carrier cylinder (201). The fan blade (206) is fixedly installed on the outer peripheral surface of the middle end of the carrier cylinder (201) and is located above the transverse branch pipe (205); The liquid treatment unit (3) includes an installation box (301), a pumping pump (302), an input vertical pipe (303), an output horizontal pipe (304), and an atomizing nozzle (305). The installation box (301) is fixedly installed at the bottom end of the carrier cylinder (201). The pumping pump (302) is located inside the installation box (301). One end of the input vertical pipe (303) penetrates the bottom surface of the installation box (301) and is connected to the input end of the pumping pump (302). The output horizontal pipe (304) is embedded on the outer wall of the installation box (301) and one end thereof is connected to the output end of the pumping pump (302). The atomizing nozzle (305) is fixedly installed at the other end of the output horizontal pipe (304).

2. The hydrofluoric acid gas introduction and neutralization device for lithium fluoride preparation according to claim 1, characterized in that: A plurality of the fan blades (206) are provided and are distributed in an equidistant circumferential array.

3. A hydrofluoric acid gas introduction and neutralization device for lithium fluoride preparation according to claim 1, characterized in that: The carrier cylinder (201), the gas input pipe (204), and the input vertical pipe (303) are all located on the same vertical central axis.

4. A hydrofluoric acid gas introduction and neutralization device for preparing lithium fluoride according to claim 1, characterized in that: A liquid input pipe (4) is fixedly provided on the top surface of the neutralization tank (1).

5. A hydrofluoric acid gas introduction and neutralization device for lithium fluoride preparation according to claim 1, characterized in that: A disturbing transverse plate (5) is fixedly provided on the outer peripheral surface of the bottom end of the input vertical pipe (303).

6. A hydrofluoric acid gas introduction and neutralization device for lithium fluoride preparation according to claim 1, characterized in that: A discharge pipe (6) is fixedly installed at the bottom end of the neutralization tank (1), and a valve is provided on the discharge pipe (6).

7. A hydrofluoric acid gas introduction and neutralization device for preparing lithium fluoride according to claim 1, characterized in that: Support feet (7) are fixedly provided on the outer peripheral surface of the bottom end of the neutralization tank (1).

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