Feeding detection device for hydrogen fluoride reaction furnace

Abstract

A hydrogen fluoride reaction furnace feeding detection device relates to the technical field of feeding detection and comprises a reaction furnace body, a fluorite feeding pipeline arranged on one side of the top end of the reaction furnace body, a corrugated pipe connected to the upper end of the fluorite feeding pipeline, a discharging hopper connected to the upper end of the corrugated pipe, a leakage frame sleeved with the discharging hopper, and a screening pore plate arranged at the bottom of the leakage frame. And a vibration motor is fixedly installed on the outer side of the discharging hopper, and a piston is movably connected to the bottom end of the interior of the reaction furnace body. The vibrating motor drives fluorite in the leakage frame to vibrate, so that the fluorite with the normal size in the leakage frame can fall into the reaction furnace main body from the screening pore plate, the fluorite with the large size is left in the leakage frame, personnel can take out the fluorite with the large size conveniently, the bottom end of the reaction furnace main body is inflated through the air pump, and the fluorite with the large size can be taken out through the air pump. Compressed gas in the upper end of the reaction furnace main body flows to the exhaust pipe, and the hydrogen fluoride content is detected through the hydrogen fluoride detector, so that whether hydrogen fluoride is completely discharged or not can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of feed detection, in particular to a feed detection device for a hydrogen fluoride reaction furnace. Background Art

[0002] Hydrofluoric acid is a gaseous weak acid with strong corrosiveness and toxicity and is easily soluble in water. Hydrofluoric acid is mainly prepared by the reaction of concentrated sulfuric acid and fluorite, and hydrofluoric acid gas is generated during the reaction. Chinese patent CN210775234U discloses a feed detection mechanism for a hydrofluoric acid production reactor, including a reactor, a motor is arranged in the middle of the upper end face of the reactor, a sulfuric acid feed port is arranged at the left end of the upper end face of the reactor, and a fluorite feed port is arranged at the left end of the upper end face of the reactor. The beneficial effects are as follows: the utility model adds a sealing plug and uses the sealing plug to seal the feed port, and uses the phenolphthalein test paper at the lower end of the detection rod to perform acid detection, thereby avoiding the harm of hydrofluoric acid gas to the human body, thereby improving the safety of feeding; by setting an inclined pipe and using an inclined pipe with a smaller inner diameter, the volume of fluorite is detected to prevent the fluorite volume from being too large and affecting the reaction efficiency.

[0003] The above prior art has the following deficiencies: In the prior art, fluorite particles are screened through an inclined pipe. If the fluorite particles are large in size, it is easy to cause blockage and difficulty in feeding. After the reaction in the reactor, there is a certain space inside the reactor and the gas does not flow under relatively stable conditions. Therefore, it is impossible to ensure whether the hydrogen fluoride gas in the reactor is completely discharged. Therefore, a hydrogen fluoride reactor feeding detection device is provided to solve the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model discloses a hydrogen fluoride reactor feed detection device, which adopts the following technical solutions:

[0005] A feed detection device for a hydrogen fluoride reactor comprises a reactor body, a fluorite feed pipeline is arranged on one side of the top of the reactor body, the upper end of the fluorite feed pipeline is connected with a bellows, the upper end of the bellows is connected with a lower hopper, a leak frame is sleeved inside the lower hopper, a screening orifice plate is arranged at the bottom of the leak frame for performing physical screening detection on the feed, a vibration motor is fixedly installed on the outer side of the lower hopper, a piston is movably connected to the bottom end of the reactor body, an air pump is fixedly installed on one side of the reactor body, and an output end of the air pump is connected to a vent located at the bottom of the reactor body through a pipeline.

[0006] The hydrogen fluoride reactor feed detection device is provided with an exhaust pipe at the upper end of the reactor body close to the fluorite feed pipeline, and a hydrogen fluoride detector is installed on the exhaust pipe. A concentrated sulfuric acid feed pipe is provided at the top of the reactor body on the side of the motor, and the concentrated sulfuric acid feed pipe, the fluorite feed pipeline and the exhaust pipe are all provided with solenoid valves and manual valves.

[0007] In the hydrogen fluoride reactor feed detection device, a motor is fixedly installed in the middle of the top of the reactor body, and the output end of the motor extends to the inside of the reactor body and is fixedly connected to a rectangular rod.

[0008] The feed detection device for the hydrogen fluoride reactor has a rectangular rod of an inverted T-shaped structure, which is slidably sleeved inside a sleeve, the interior of the sleeve is a rectangular hollow structure, a spring is arranged between the bottom of the rectangular rod and the inner bottom of the sleeve, and a stirring rod is connected to the outside of the sleeve.

[0009] In the hydrogen fluoride reactor feed detection device, a limit ring is arranged in the middle of the reactor body.

[0010] The hydrogen fluoride reactor feed detection device is provided with a sealing ring between the circumferential outer side of the piston and the inner wall of the reactor body.

[0011] The utility model has the following advantages: the vibration motor can drive the fluorite in the leak frame to vibrate, thereby facilitating the normal-sized fluorite in the leak frame to fall from the screening hole plate into the interior of the reactor body, while the larger fluorite remains in the leak frame, so that it is convenient for personnel to take out the larger fluorite;

[0012] The air pump is used to inflate the bottom of the reactor body and the inside of the piston, so that the compressed gas inside the upper end of the reactor body flows to the exhaust pipe. The hydrogen fluoride content is detected by the hydrogen fluoride detector to ensure whether the hydrogen fluoride is completely discharged.

[0013] When adding fluorite, the piston slowly descends, which can make the internal air pressure at the upper end of the reactor body negative, thereby effectively preventing the internal gas of the reactor body from leaking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 This utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0017] In the figure: 1. Reactor body; 2. Fluorite feed pipe; 3. Bellows; 4. Lower hopper; 5. Leakage frame; 501. Screening plate; 6. Vibration motor; 7. Piston; 701. Sealing ring; 8. Air pump; 9. Vent; 10. Motor; 11. Rectangular rod; 12. Casing; 13. Spring; 14. Stirring rod; 15. Limiting ring; 16. Exhaust pipe; 17. Hydrogen fluoride detector; 18. Concentrated sulfuric acid feed pipe; 19. Solenoid valve; 20. Manual valve. DETAILED DESCRIPTION

[0018] The present invention can be explained in more detail through the following embodiments. The present invention is not limited to the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention.

[0019] Combination Figure 1-Figure 3 The hydrogen fluoride reactor feed detection device comprises a reactor body 1, a fluorite feed pipe 2 is arranged on one side of the top of the reactor body 1, a bellows 3 is connected to the upper end of the fluorite feed pipe 2, a lower hopper 4 is connected to the upper end of the bellows 3, a leak frame 5 is sleeved inside the lower hopper 4, a screening plate 501 is arranged at the bottom of the leak frame 5, and is used to perform physical screening on the feed to detect the particle size, a vibration motor 6 is fixedly installed on the outer side of the lower hopper 4, a piston 7 is movably connected to the bottom end of the reactor body 1, an exhaust pipe 16 is arranged on the upper end of the reactor body 1 near the fluorite feed pipe 2, and a hydrogen fluoride detector 17 is installed on the exhaust pipe 16;

[0020] An air pump 8 is fixedly installed on one side of the reactor body 1, and air can be pumped and delivered through the air pump 8. The output end of the air pump 8 is connected to the vent 9 through a pipeline. The vent 9 is located at the bottom of the reactor body 1. A motor 10 is fixedly installed in the middle of the top of the reactor body 1. The output end of the motor 10 extends to the inside of the reactor body 1 and is fixedly connected with a rectangular rod 11. The rectangular rod 11 is an inverted T-shaped structure. The rectangular rod 11 is slidably sleeved inside the sleeve 12. The inside of the sleeve 12 is a rectangular hollow structure. A spring 13 is arranged between the bottom of the rectangular rod 11 and the inner bottom of the sleeve 12. The outer side of the sleeve 12 is connected with a stirring rod 14;

[0021] A limit ring 15 is arranged on the inner side of the middle part of the reactor body 1, and the limit ring 15 can prevent the piston 7 from rising excessively and being limited. A sealing ring 701 is arranged on the outer side of the circumference of the piston 7 to ensure the sealing between the piston 7 and the reactor body 1. A concentrated sulfuric acid feed pipe 18 is arranged on the top of the reactor body 1 on one side of the motor 10. The concentrated sulfuric acid feed pipe 18, the fluorite feed pipeline 2, and the exhaust pipe 16 are all provided with an electromagnetic valve 19 and a manual valve 20. The double insurance of the electromagnetic valve 19 and the manual valve 20 can prevent the valve from being unable to close.

[0022] The hydrogen fluoride reactor feed detection device of the utility model is implemented, the vibration motor 6, the air pump 8, the motor 10, the hydrogen fluoride detector 17 and the electromagnetic valve 19 are connected to the switch and the power supply respectively, the air pump 8 is operated first to make the piston 7 located at the inner bottom of the reactor body 1, the fluorite particles are placed in the drain frame 5 inside the lower hopper 4, and the vibration motor 6 is operated, and then the fluorite particles in the drain frame 5 can be driven to vibrate by the vibration motor 6, so that the suitable fluorite particles in the drain frame 5 can fall from the screening orifice plate 501 to the inside of the reactor body 1, and the larger fluorite is left in the drain frame 5, so that it is convenient for personnel to take out the larger fluorite. After the fluorite is placed in, the electromagnetic valve 19 and the manual valve 20 on the fluorite feed pipe 2 are closed; After a certain amount of concentrated sulfuric acid is introduced into the reactor body 1 through the concentrated sulfuric acid feed pipe 18, the solenoid valve 19 and the manual valve 20 on the concentrated sulfuric acid feed pipe 18 are closed, and the solenoid valve 19 and the manual valve 20 on the exhaust pipe 16 are opened at this time, so that the hydrogen fluoride gas is effectively discharged and collected. When the hydrogen fluoride detector 17 cannot detect the hydrogen fluoride gas content, the air pump 8 is operated to inflate the bottom of the reactor body 1 located at the bottom of the piston 7, so that the piston 7 rises and compresses the top gas in the reactor body 1 located at the top of the piston 7, so that the compressed gas at the upper end of the reactor body 1 flows to the exhaust pipe 16, and then the hydrogen fluoride gas content is detected by the hydrogen fluoride detector 17, so as to ensure that the hydrogen fluoride gas is effectively discharged.

[0023] The parts not described in detail in this utility model are prior art.

Claims

1. A hydrogen fluoride reactor feed detection device, comprising a reactor body (1), characterized in that: A fluorite feed pipe (2) is arranged on one side of the top of the reactor body (1), the upper end of the fluorite feed pipe (2) is connected to a bellows (3), the upper end of the bellows (3) is connected to a lower hopper (4), a leak frame (5) is sleeved inside the lower hopper (4), a screening plate (501) is arranged at the bottom of the leak frame (5) for performing physical screening on the feed, a vibration motor (6) is fixedly installed on the outside of the lower hopper (4), a piston (7) is movably connected to the bottom end of the reactor body (1), an air pump (8) is fixedly installed on one side of the reactor body (1), and the output end of the air pump (8) is connected to a vent (9) located at the bottom of the reactor body (1) through a pipeline.

2. The hydrogen fluoride reaction furnace feed detection device according to claim 1, characterized in that: An exhaust pipe (16) is provided at the upper end of the reactor body (1) near the fluorite feed pipe (2), and a hydrogen fluoride detector (17) is installed on the exhaust pipe (16). A concentrated sulfuric acid feed pipe (18) is provided at the top of the reactor body (1) on the side of the motor (10), and the concentrated sulfuric acid feed pipe (18), the fluorite feed pipe (2), and the exhaust pipe (16) are all provided with a solenoid valve (19) and a manual valve (20).

3. The hydrogen fluoride reactor feed detection device according to claim 1, characterized in that: A motor (10) is fixedly mounted at the middle of the top of the reactor body (1), and an output end of the motor (10) extends to the inside of the reactor body (1) and is fixedly connected to a rectangular rod (11).

4. The hydrogen fluoride reaction furnace feed detection device according to claim 3, characterized in that: The rectangular rod (11) is an inverted T-shaped structure. The rectangular rod (11) is slidably sleeved inside a sleeve (12). The interior of the sleeve (12) is a rectangular hollow structure. A spring (13) is provided between the bottom of the rectangular rod (11) and the inner bottom of the sleeve (12). The outside of the sleeve (12) is connected to a stirring rod (14).

5. The hydrogen fluoride reaction furnace feed detection device according to claim 1, characterized in that: A limiting ring (15) is provided in the middle of the reactor body (1).

6. The hydrogen fluoride reactor feed detection device according to claim 1, characterized in that: A sealing ring (701) is provided between the outer circumferential side of the piston (7) and the inner wall of the reactor body (1).

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