Feeding device of reactor

Abstract

The utility model discloses a reactor feeding device which comprises a feeding pipe and a feeding hopper, wherein the lower end of the feeding pipe is connected with a reactor; the feeding hopper is connected with the upper end of the feeding pipe; the device is characterized in that an upper feeding valve and a lower feeding valve are arranged on the feeding pipe, an air inlet pipe is connected with the feeding pipe between the upper feeding valve and the lower feeding valve, and an air inlet valve is arranged on the air inlet pipe; the lower end of the feeding pipe is a bevel end face and extends into the reactor, and the lower end of the bevel end face is adjacent to the inner wall of the reactor; the device is convenient to operate, realizes limited and quantitative feeding, and can prevent blockage, air from entering a reaction system and materials from being added too quickly, so that safety accidents such as violent reaction and fire blast are avoided, and the safety of chemical production can be improved.

Description

Technical Field

[0001] The utility model relates to a reactor feeding device, in particular to a reactor feeding device for high-risk materials. Background Art

[0002] At present, for chemical reactions in fields such as medicine and petrochemical industry, manual feeding is usually carried out from the manhole or feeding port of the reactor. The speed and amount of feeding completely depend on the experience of workers, and it is very easy to have deviations or mistakes. At the same time, the manhole needs to be opened repeatedly during the feeding process, which is very inconvenient to operate, and static electricity will also be generated during the feeding process. Especially for chemical reactions that need to isolate air, only inert gas can be introduced into the reactor, and it is very easy to mix in air when the manhole is opened, resulting in reaching the explosion limit in the reaction system and the risk of combustion and explosion under the action of static electricity. Summary of the Invention

[0003] The purpose of the utility model is to address the above deficiencies of the prior art and provide a reactor feeding device, which is not only convenient to operate, realizes limited and quantitative feeding, but also can prevent blockage, air from entering the reaction system and the material from being added too fast, thereby avoiding safety accidents such as violent reactions and combustion and explosion, and improving the safety of chemical production.

[0004] To achieve the above purpose, a reactor feeding device of the utility model includes a feed pipe with the lower end connected to the reactor and a feeding hopper connected to the upper end of the feed pipe. It is characterized in that: an upper feed valve and a lower feed valve are arranged on the feed pipe, an intake pipe is connected to the feed pipe between the upper feed valve and the lower feed valve, and an intake valve is arranged on the intake pipe; the lower end of the feed pipe is an inclined end face and extends into the reactor, and the lower end of the inclined end face is adjacent to the inner wall of the reactor.

[0005] When the utility model is in use, the material to be added is first placed in the feed pipe between the upper feed valve and the lower feed valve. The lower feed valve and the intake valve are opened, and inert gas is introduced through the intake pipe to blow all the residual materials in the pipe into the reactor. This not only makes the feeding operation convenient, realizes limited and quantitative feeding, but also prevents blockage and air from entering the reaction system, preventing the occurrence of combustion and explosion accidents. The lower end of the feed pipe is an inclined end face, which can ensure that the material slowly enters the reactor and enters the reaction system along the reactor wall, preventing large pieces of material from entering and being added too fast, avoiding violent reactions caused by material splashing, and improving the safety of chemical production.

[0006] As a further improvement of the utility model, both the upper feed valve and the lower feed valve are short-type ball valves and are connected with long-handle operating rods; this can prevent material accumulation and jamming, and is convenient for operation and slow down the opening degree of the valve, which can further slow down the speed of material entry and ensure safety.

[0007] As a further improvement of the present utility model, a flowmeter is provided on the intake pipe; it can control the gas input volume, prevent the overpressure in the reactor due to too large gas input volume, or the failure to achieve the replacement protection effect due to too small gas input volume, and ensure the safety of the system;

[0008] As a further improvement of the present utility model, a funnel cover is provided on the feeding hopper; it can prevent the materials from being exposed to the air for a long time, thus causing the deterioration of the materials and safety risks;

[0009] In summary, the present utility model is not only convenient to operate, realizes limited and quantitative feeding, but also can prevent blockage, air from entering the reaction system and the materials from being added too fast, thereby avoiding safety accidents such as violent reactions and explosions, and improving the safety of chemical production. Brief Description of the Drawings

[0010] Figure 1 It is the front view of the embodiment of the present utility model. Detailed Description of the Embodiment

[0011] The present utility model will be further described in detail below with reference to the drawings.

[0012] As Figure 1 shown, a reactor feeding device of this embodiment includes a feed pipe 1 with its lower end connected to a reactor 11, a feeding hopper 2 connected to the upper end of the feed pipe 1, and a funnel cover 3 is provided on the feeding hopper 2; an upper feed valve 4 and a lower feed valve 5 are provided on the feed pipe 1, both the upper feed valve 4 and the lower feed valve 5 are short-type ball valves and are connected with long-handle operating rods 9; an intake pipe 6 is connected to the feed pipe 1 between the upper feed valve 4 and the lower feed valve 5, and an intake valve 7 and a flowmeter 8 are provided on the intake pipe 6; the lower end of the feed pipe 1 is an inclined end face 10 and extends into the reactor 11, and the lower end of the inclined end face 10 is adjacent to the inner wall of the reactor.

[0013] When the utility model is in use, the material is placed in the feeding hopper 2, the upper feeding valve 4 is opened, and the lower feeding valve 5 is closed. The material enters the feeding pipe 1. When the pipe space between the upper feeding valve 4 and the lower feeding valve 5 is filled with the material, the upper feeding valve 4 is closed, and the maximum capacity in the pipe reaches the maximum addition limit of the material. Then the lower feeding valve 5 is opened, and the material enters the reactor 11. Next, the air inlet valve 7 is opened, and an inert gas is introduced to blow all the residual material in the pipe into the reactor 11, which can fully ensure the limited addition of the material and prevent over - addition or under - addition. At the same time, an inert gas protection is formed in the pipe to prevent air from entering the feeding pipe 1 from the feeding hopper 2 and prevent air from entering the reactor 11. This not only makes the feeding operation convenient, realizes limited and quantitative feeding, but also prevents blockage and eliminates the formation of explosive gases, thus preventing the occurrence of combustion and explosion accidents. In addition, the inclined end face 10 at the lower end of the feeding pipe 1 can ensure that the material slowly enters the reactor and enters the reaction system along the reactor wall, preventing large pieces of material from entering and the addition speed from being too fast, and avoiding violent reactions caused by material splashing, which can improve the safety of chemical production;

[0014] The short - type ball valve can prevent material accumulation and jamming, and the long - handle operating rod 9 facilitates operation and slows down the opening degree of the upper feeding valve 4 and the lower feeding valve 5, which can further slow down the material entry speed and ensure safety;

[0015] The flowmeter 8 can control the gas inlet volume, preventing the gas inlet volume from being too large to cause overpressure in the reactor or too small to achieve the replacement protection effect, and ensuring the safety of the system. The funnel cover 3 can prevent the material from being exposed to the air for a long time, thus causing material deterioration and safety risks;

[0016] The above embodiments are described, but it should be understood that the above embodiments are only for the purpose of exemplification and illustration, and are not intended to limit the utility model within the scope of the described embodiments.

Claims

1. A reactor feeding device, comprising a feeding pipe connected to the reactor at the lower end and a feeding hopper connected to the upper end of the feeding pipe; characterized in that: An upper feed valve and a lower feed valve are arranged on the feed pipe, an air intake pipe is connected to the feed pipe between the upper feed valve and the lower feed valve, and an air intake valve is arranged on the air intake pipe; the lower end of the feed pipe is an oblique end face and extends into the reactor, and the lower end of the oblique end face is adjacent to the inner wall of the reactor.

2. A reactor feeding device according to claim 1, characterized in that: The upper feed valve and the lower feed valve are both short ball valves connected with a long-handled operating rod.

3. A reactor feeding device according to claim 1 or 2, characterized in that: The air inlet pipe is provided with a flow meter.

4. A reactor feeding device according to claim 3, characterized in that: The feeding hopper is provided with a funnel cover.

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