CN213254335U

CN213254335U - Sodium p-benzenediolate feeding system and device

Info

Publication number: CN213254335U
Application number: CN202120471877.4U
Authority: CN
Inventors: 赵萌莹; 何瑛; 王智颖; 姜涛; 李琼
Original assignee: Xinjiang Chemical Design & Research Institute Co ltd
Current assignee: Xinjiang Chemical Design & Research Institute Co ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-05-25
Anticipated expiration: 2031-03-04

Abstract

The utility model discloses a sodium hydroquinone feeding system and device, including hydroquinone disposition groove, hydroquinone disposition groove right flank is equipped with hydroquinone delivery pump, hydroquinone disposition inslot is equipped with nitrogen gas replacement system and level instrument, hydroquinone disposition groove left flank is equipped with alkali lye dropwise add jar one, carry out alkali lye dropwise add after letting in fresh water, generate sodium hydroquinone, in this process, to satisfy the material loading of ton bag, stack the platform and need to increase the load and the solid material loading needs supporting jacking equipment, the investment is higher, process flow optimizes the back, carries out hydroquinone disposition in factory building one deck, the alkali lye dropwise add can be carried out in hydroquinone disposition cauldron once, the sodium hydroquinone solution after the disposition carries out secondary alkali lye dropwise add and subsequent reaction to the alkali substitution cauldron of two-layer platform through the pump, alleviateed the load demand of equipment platform like this, the configuration of a solid feeding system is reduced, and the investment is effectively reduced.

Description

Sodium p-benzenediolate feeding system and device

Technical Field

The utility model relates to a chemical industry equipment technical field specifically is a sodium p-phenylenediamine charge-in system and device.

Background

The research adjusts the feeding mode by optimizing the process flow. After the technological process is optimized, hydroquinone is prepared in one layer of a factory building, primary alkali liquor is dripped in a primary hydroquinone preparation kettle, and the prepared sodium hydroquinone solution is conveyed to an alkali substitution kettle of a two-layer platform through a pump to carry out secondary alkali liquor dripping and subsequent reaction. Thus, the load requirement of the equipment platform is reduced, the configuration of a solid feeding system is reduced, and the investment is effectively reduced; the working environment is improved, and the dust generated in the feeding process can be effectively controlled, so that the production environment is safer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a to hydroquinone sodium salt charge-in system and device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sodium hydroquinone feeding system and a device thereof comprise a hydroquinone configuration groove, wherein a hydroquinone delivery pump is arranged on the right side surface of the hydroquinone configuration groove, a nitrogen displacement system and a liquid level instrument are arranged in the hydroquinone configuration groove, an alkali liquor dripping tank I is arranged on the left side surface of the hydroquinone configuration groove, a flow meter I and a cut-off valve I are arranged in the alkali liquor dripping tank, the back side surface of the hydroquinone delivery pump is fixedly connected with an alkali reaction kettle through a pipeline, the left side surface of the alkali reaction kettle is fixedly connected with a methyl chloropropionate dripping tank, a flow meter III and an adjusting valve group II are arranged in the methyl chloropropionate dripping tank, the front end of the right side surface of the alkali reaction kettle is fixedly connected with an alkali liquor dripping tank II, the flow meter II and the adjusting valve group I are arranged in the alkali liquor dripping tank II, a discharge header pipe is arranged at the back end of the right side surface of the alkali reaction kettle, and a nitrogen displacement system II and an adjusting, and the back side surface of the alkali reaction kettle is fixedly connected with an alkali solution delivery pump.

Preferably, a temperature instrument and a stop valve are arranged in the alkali reaction kettle, and a freezing water tank is arranged on the front side surface of the hydroquinone preparation tank.

Preferably, a feed inlet is arranged in the hydroquinone configuration groove, a wedge-shaped groove is formed in the upper surface of the feed inlet, a spring block is fixedly connected to the lower surface of the inner wall of the wedge-shaped groove, a wedge block is fixedly connected to the upper surface of the spring block, and the wedge block conforms to the size of the wedge-shaped groove.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the sodium hydroquinone feeding system and the device solve the problem by optimizing the process flow. Hydroquinone drops into the alkali on the double-deck equipment platform through the mode that the solid was thrown material among the original process flow and replaces reation kettle, carry out the alkali lye dropwise add after letting in fresh water, generate sodium hydroquinone, in this in-process for satisfying the material loading of ton bag, it needs to increase load and solid material loading to pile up the platform and need supporting jacking equipment, the investment is higher, process flow optimizes the back, carry out the hydroquinone configuration in factory building one deck, the dropwise add of primary alkali lye can be carried out at the hydroquinone configuration cauldron of primary alkali lye, the sodium hydroquinone solution after the configuration is carried to the alkali of double-deck platform through the pump and is replaced the cauldron and carry out secondary alkali lye dropwise add and subsequent reaction, the load demand of equipment platform has been alleviateed like this, reduce solid material loading system configuration, effectively reduce the investment.

(2) This sodium hydroquinone charge-in system and device has improved operational environment, and the dust that the material process produced can be effectively controlled, makes the production environment safer.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic view of the wedge-shaped groove of the present invention;

fig. 3 is a schematic view of the wedge of the present invention.

In the figure: 1. a hydroquinone preparation tank; 2. a sodium p-phenylenediamine delivery pump; 3. an alkali reaction kettle; 4. an alkali solution delivery pump; 5. the nitrogen replacement system is uniform; 6. a nitrogen replacement system II; 7. a first flowmeter; 8. a first cut-off valve; 9. a liquid level gauge; 10. a second flowmeter; 11. a first adjusting valve group; 12. a third flowmeter; 13. a second adjusting valve group; 14. a temperature meter; 15. a shut-off valve; 16. a third adjusting valve group; 101. a wedge-shaped groove; 102. a spring block; 103. a wedge block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a sodium hydroquinone feeding system and a device thereof comprise a hydroquinone configuration groove 1, wherein the right side surface of the hydroquinone configuration groove 1 is provided with a hydroquinone delivery pump 2, the hydroquinone configuration groove 2 is internally provided with a nitrogen displacement system 5 and a liquid level instrument 9, the left side surface of the hydroquinone configuration groove 1 is provided with an alkali liquor dropping tank I which is internally provided with a flowmeter I7 and a cut-off valve I8, the back side surface of the hydroquinone delivery pump 2 is fixedly connected with an alkaline reaction kettle 3 through a pipeline, the left side surface of the alkaline reaction kettle 3 is fixedly connected with a methyl chloropropionate dropping tank, the methyl chloropropionate dropping tank is internally provided with a flowmeter III 12 and an adjusting valve set II 13, the front end of the right side surface of the alkaline reaction kettle 3 is fixedly connected with an alkali liquor dropping tank II which is internally provided with a flowmeter II 10 and an adjusting valve set I11, the back end of the right side surface of the alkaline reaction kettle 3 is provided with a vent main pipe, the nitrogen displacement system II 6 and the adjusting valve set, an alkali solution delivery pump 4 is fixedly connected to the back side surface of an alkali reaction kettle 3, a temperature instrument 14 and a cut-off valve 15 are arranged in the alkali reaction kettle 3, a freezing water tank is arranged on the front side surface of a hydroquinone preparation tank 1, a feed inlet is arranged in the hydroquinone preparation tank 1, a wedge-shaped groove 101 is arranged on the upper surface of the feed inlet, a spring block 102 is fixedly connected to the lower surface of the inner wall of the wedge-shaped groove 101, a wedge block 103 is fixedly connected to the upper surface of the spring block 102, the size of the wedge block 103 is consistent with that of the wedge-shaped groove 101, hydroquinone is fed into the hydroquinone preparation tank 1, nitrogen replacement is carried out by a nitrogen system monitored by a flowmeter 5 after vacuum pumping is carried out by a vacuum system pipeline, no residual air is ensured in the preparation tank, the adding amount of alkali solution is controlled by using a regulating valve 7 and the cut-off valve 8, a liquid level meter 9 is arranged in the preparation tank, the cut, to prevent deflation of the deployment canister; in the preparation process, chilled water is introduced into a tank jacket to remove reaction heat, the prepared sodium hydroquinone is conveyed to an alkaline reaction kettle 3 through a sodium hydroquinone conveying pump 2, alkali liquor dripping is controlled through a flow meter 10 and a regulating valve group 11 in an interlocking manner, a flow meter III 12 and a regulating valve group II 13 are controlled in an interlocking manner, and methyl chloropropionate dripping is controlled, nitrogen is introduced in the reaction process for nitrogen sealing protection, the alkaline reaction kettle 3 is provided with a temperature instrument 14, a steam pipeline valve is opened when the kettle temperature is lower than 35 ℃, a steam pipeline stop valve 16 is closed when the temperature is higher than 45 ℃, the regulating valve group I11, the regulating valve group 13 II and the stop valve 15 are closed in a high-temperature interlocking manner, the chilled water regulating valve group 17 is opened to reduce the reaction temperature, the normal reaction is maintained, the over-high temperature reaction is prevented from being excessively violent, the qualified alkaline solution is conveyed to a downstream reaction kettle through an alkaline solution conveying pump 4, in the process, the solid feeding place is centralized, so that dust collection is convenient, and multi-point feeding dust loss is avoided.

Specifically, the utility model discloses during the use:

the first step is as follows: feeding hydroquinone into a hydroquinone preparation tank 1, carrying out nitrogen replacement by a nitrogen system monitored by a flowmeter 5 after vacuum pumping is carried out by a vacuum system pipeline, ensuring that no residual air exists in the preparation tank, controlling the addition of alkali liquid drops by using a regulating valve 7 and a stop valve 8, arranging a liquid level meter 9 in the preparation tank, closing the stop valve 8 by high and high interlocking of the liquid level meter 9, stopping a hydroquinone sodium delivery pump 2 by low and low interlocking of the liquid level meter 9 so as to prevent the preparation tank from being shrunken; in the preparation process, chilled water is introduced into a tank jacket to remove reaction heat, the prepared sodium hydroquinone is conveyed to an alkaline reaction kettle 3 through a sodium hydroquinone conveying pump 2, alkali liquor dripping is controlled through a flow meter 10 and a regulating valve group 11 in an interlocking manner, a flow meter III 12 and a regulating valve group II 13 are controlled in an interlocking manner, and methyl chloropropionate dripping is controlled, nitrogen is introduced in the reaction process for nitrogen sealing protection, the alkaline reaction kettle 3 is provided with a temperature instrument 14, a steam pipeline valve is opened when the kettle temperature is lower than 35 ℃, a steam pipeline stop valve 16 is closed when the temperature is higher than 45 ℃, the regulating valve group I11, the regulating valve group 13 II and the stop valve 15 are closed in an interlocking manner of high temperature, the chilled water regulating valve group is opened to reduce the reaction temperature, the normal reaction is maintained, the over-high temperature reaction is prevented, qualified alkaline solution is conveyed to a downstream reaction kettle through an alkaline solution conveying pump 4, in the process, the solid feeding places are centralized, so that dust collection is facilitated, and the scattering of multi-point feeding dust is avoided; the configuration groove is arranged on one floor of a factory building, so that the load requirement of an equipment platform is reduced, the configuration of a solid feeding system is reduced, and the investment is effectively reduced; the working environment is improved, and the dust generated in the feeding process can be effectively controlled, so that the production environment is safer.

The second step is that: through the mode, when adding hydroquinone, thereby play the further effect that reduces the dust through this 103 this moment, the dust is emptyd to 103 on to reduced hydroquinone and disposed the distance between the groove 1, thereby further reduced the dust, it is more convenient to use.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sodium hydroquinone charge-in system and device, includes hydroquinone configuration groove (1), hydroquinone configuration groove (1) right flank is equipped with hydroquinone delivery pump (2), be equipped with nitrogen gas replacement system (5) and liquid level instrument (9) in hydroquinone configuration groove (1), its characterized in that: the left side surface of the hydroquinone preparation groove (1) is provided with a first alkali liquor dripping tank, a first flowmeter (7) and a first cut-off valve (8) are arranged in the first alkali liquor dripping tank, the back side surface of the hydroquinone delivery pump (2) is fixedly connected with an alkali reaction kettle (3) through a pipeline, the left side surface of the alkaline reaction kettle (3) is fixedly connected with a methyl chloropropionate dripping tank, a flowmeter III (12) and a regulating valve group II (13) are arranged in the methyl chloropropionate dripping tank, the front end of the right side surface of the alkali reaction kettle (3) is fixedly connected with an alkali liquor dripping tank II, a flow meter II (10) and an adjusting valve group I (11) are arranged in the alkali liquor dripping tank II, the back end of the right side surface of the alkaline reaction kettle (3) is provided with a vent header pipe, a nitrogen displacement system II (6) and a regulating valve group III (16) are arranged in the vent header pipe, and the back side surface of the alkali reaction kettle (3) is fixedly connected with an alkali solution delivery pump (4).

2. The sodium terephthalate feeding system and device as claimed in claim 1, wherein: a temperature instrument (14) and a shut-off valve (15) are arranged in the alkaline reaction kettle (3).

3. The sodium terephthalate feeding system and device as claimed in claim 1, wherein: the front side surface of the hydroquinone collocation tank (1) is provided with a freezing water tank.

4. The sodium terephthalate feeding system and device as claimed in claim 1, wherein: the hydroquinone preparation groove (1) is internally provided with a feed inlet, and the upper surface of the feed inlet is provided with a wedge-shaped groove (101).

5. The sodium terephthalate feeding system and device as claimed in claim 4, wherein: the spring block (102) is fixedly connected to the lower surface of the inner wall of the wedge-shaped groove (101), the wedge block (103) is fixedly connected to the upper surface of the spring block (102), and the size of the wedge block (103) is consistent with that of the wedge-shaped groove (101).