Pipeline reactor for preparing lignin-based surfactant

Abstract

The pipeline reactor comprises a reactor main body, the reactor main body comprises an outer shell and an inner pipeline, the two ends of the outer shell are symmetrically and detachably connected with end covers, the inner pipeline penetrates through the end covers to extend out and is fixedly provided with a connector, and the end covers are respectively provided with a medium through opening; the first-stage reaction system is mounted at the top end of the outer shell; the input end of the second-stage reaction system is connected with the first-stage reaction system, and the output end of the second-stage reaction system penetrates through the outer shell and is communicated with the inner pipeline; the intermediate reaction system is mounted on the side surface of the outer shell and is communicated with the inner pipeline; the circulating system is installed at the bottom of the outer shell, and the circulating system comprises a filter, a heater and a circulating pump which are sequentially connected in series. The pipeline reactor for the lignin-based surfactant, provided by the utility model, is high in reaction efficiency and stable in working process, and the production cost is reduced to a great extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineral processing engineering magnetic force mineral separation equipment technical field, especially a kind of pipe reactor for preparing lignin-based surfactant. BACKGROUND

[0002] Lignin-based surfactants can be classified according to their structure and properties, mainly including:

[0003] Anionic: such as lignin sodium sulfonate, calcium lignosulfonate, etc. This kind of surfactant has hydrophilic and hydrophobic parts, so it has good surface activity;

[0004] Cationic: cationic lignin surfactants prepared by modification, which expands the application field of lignin;

[0005] Nonionic: nonionic lignin surfactants prepared by introducing nonionic groups;

[0006] Anionic and cationic: combining the characteristics of anion and cation, with more extensive application prospects.

[0007] There are various methods for preparing lignin-based surfactants, mainly including chemical modification, biological conversion, etc. Among them, chemical modification is the most commonly used method, by introducing different functional groups, the surface activity and application performance of lignin can be changed. For example, by hydroxymethylation, sulfomethylation, alkylation, oxidation, amination, carbonylation, etc. Other hydrophilic, lipophilic groups are introduced into the lignin molecular structure, and then sodium salt, potassium salt, ammonium salt, chromium salt and nonionic compounds are prepared.

[0008] There is a lack of reactor for preparing lignin-based surfactants in the prior art, therefore, the utility model provides a pipe reactor for preparing lignin-based surfactants. UTILITY MODEL CONTENT

[0009] The utility model aims to provide a pipe reactor for preparing lignin-based surfactants to solve the problems existing in the prior art.

[0010] To achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a pipe reactor for preparing lignin-based surfactants, comprising:

[0011] The reactor body comprises an outer shell and an inner pipeline, the outer shell is symmetrically detachably connected with end covers at both ends, the inner pipeline passes through the end cover and is fixed with a connecting head, and medium through holes are formed in the end covers respectively;

[0012] A primary reaction system is installed at the top end of the outer shell;

[0013] A secondary reaction system is connected with the primary reaction system at the input end, and is communicated with the inner pipeline at the output end through the outer shell;

[0014] An intermediate reaction system is installed at the side of the outer shell and communicated with the inner pipeline;

[0015] A circulating system is installed at the bottom of the outer shell, which comprises a filter, a heater and a circulating pump connected in sequence, the filter is communicated with the end cover at the rear end of the outer shell at the input end, and the circulating pump is communicated with the end cover at the front end of the outer shell at the output end;

[0016] The primary reaction system, the secondary reaction system, the intermediate reaction system and the inner pipeline are respectively provided with temperature monitoring modules and pressure monitoring modules.

[0017] According to the pipeline reactor for preparing lignin-based surfactant, the primary reaction system comprises a reaction box, and the reaction box is fixed on the outer shell.

[0018] According to the pipeline reactor for preparing lignin-based surfactant, the secondary reaction system comprises a first reaction pipe, a plurality of groups of the first reaction pipe are arranged, the first reaction pipe is fixed on the side wall of the outer shell, one end of the first reaction pipe penetrates into the inner pipeline through the outer shell, a conveying pipe is fixedly connected to the side wall of the first reaction pipe, the conveying pipe is fixedly communicated with the reaction box at one end, and a negative pressure pump is installed on the conveying pipe.

[0019] According to the pipeline reactor for preparing lignin-based surfactant, the secondary reaction system comprises a second reaction pipe, a plurality of groups of the second reaction pipe are arranged, the second reaction pipe is fixed on the outer shell, and one end of the second reaction pipe penetrates into the inner pipeline.

[0020] According to the pipeline reactor for preparing lignin-based surfactant, a spiral plate is arranged between the outer shell and the inner pipeline.

[0021] According to the pipeline reactor for preparing lignin-based surfactant, the temperature monitoring module comprises a temperature sensor.

[0022] According to the pipeline reactor for preparing lignin-based surfactant, the pressure monitoring module comprises a pressure sensor.

[0023] The utility model discloses the following technical effects:

[0024] In the utility model, after lignin is reacted through the reaction of first reaction system and second reaction system respectively, enters the inner pipeline, and the intermediate reaction system reaction generates the intermediate, and the intermediate mixes and reacts with the compound of twice reaction in the inner pipeline, and finally forms lignin-based surfactant, the temperature of first reaction system, second reaction system, intermediate reaction system and inner pipeline can be controlled respectively, improves the reaction efficiency, and the setting of circulation system can guarantee the stability of temperature in the reaction process.

[0025] The pipeline reactor of the lignin-based surfactant provided by the utility model has high reaction efficiency and stable working process, and greatly reduces production cost. DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0027] Figure 1 The structure diagram of the pipeline reactor for preparing lignin-based surfactant of the utility model Figure I ;

[0028] Figure 2 The structure diagram of the pipeline reactor for preparing lignin-based surfactant of the utility model Figure II ;

[0029] Figure 3 The structure diagram of the reactor main body of the utility model.

[0030] Wherein, 1, outer shell body;2, inner pipeline;3, end cover;4, connecting head;5, filter;6, heater;7, circulating pump;8, reaction box;9, first reaction pipe;10, conveying pipe;11, second reaction pipe;12, spiral plate. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, obvious and easy to understand, the utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0033] Referring to Figures 1-3 The utility model provides a pipeline reactor for preparing lignin based surfactant, it includes:

[0034] The reactor main part includes the outer shell 1 and the inner pipeline 2, the outer shell 1 both ends symmetrical detachable connection has end cover 3, and the inner pipeline 2 passes through end cover 3 and is fixed with the connecting head 4, and the end cover 3 is equipped with medium pass respectively on it;Valve is respectively installed on the connecting head 4, and is used for the input and output of reactant;

[0035] The first reaction system is installed at the top end of the outer shell 1.

[0036] The second reaction system is connected with the first reaction system at the input end and communicated with the inner pipeline 2 at the output end through the outer shell 1.

[0037] The intermediate reaction system is installed on the side of the outer shell 1 and communicated with the inner pipeline 2.

[0038] The circulation system is installed at the bottom of the outer shell 1, and the circulation system includes filter 5, heater 6 and circulating pump 7 connected in sequence, the input end of filter 5 is communicated with the end cover 3 at the rear end of the outer shell 1, and the output end of circulating pump 7 is communicated with the end cover 3 at the front end of the outer shell 1.

[0039] The first reaction system, the second reaction system, the intermediate reaction system and the inner pipeline 2 are respectively provided with temperature monitoring module and pressure monitoring module.

[0040] In the utility model, lignin enters the inner pipeline 2 after reaction of the first reaction system and the second reaction system, the intermediate reaction system generates intermediate, and the intermediate and the compound after twice reaction are mixed and reacted in the inner pipeline 2 to form lignin based surfactant, the temperature of the first reaction system, the second reaction system, the intermediate reaction system and the inner pipeline 2 can be controlled respectively, the reaction efficiency is improved, and the stability of temperature in the reaction process is ensured by the circulation system.

[0041] The pipeline reactor for lignin based surfactant provided by the utility model has high reaction efficiency, stable working process and greatly reduced production cost.

[0042] Further optimization scheme, the first reaction system includes reaction box 8, and the reaction box 8 is fixed on the outer shell 1.

[0043] Further optimization scheme, the secondary reaction system includes the first reaction tube 9, the first reaction tube 9 is provided with several groups, several groups of first reaction tube 9 are fixed on the side wall of the outer shell 1, and one end of the first reaction tube 9 extends into the inner pipeline 2 through the outer shell 1, the side wall of the first reaction tube 9 is fixedly connected with the conveying pipe 10, one end of the conveying pipe 10 is fixedly communicated with the reaction box 8, and the negative pressure pump is installed on the conveying pipe 10.

[0044] Further optimization scheme, the secondary reaction system includes the second reaction tube 11, the second reaction tube 11 is provided with several groups, the second reaction tube 11 is fixed on the outer shell 1, and one end of the second reaction tube 11 extends into the inner pipeline 2.

[0045] The reaction box 8, the first reaction tube 9 and the second reaction tube 11 are all installed with heating pipelines, the heating pipelines are connected with medium storage boxes, the medium storage boxes include hot medium intervals, cold medium intervals and reflux medium intervals, the medium storage boxes are connected with the circulating pump 7, the reaction box 8, the first reaction tube 9 and the second reaction tube 11 by using a multi-way valve, so that temperature control of each position can be realized, the reaction temperature of the primary reaction system is 50-100 DEG C, the reaction temperature of the secondary reaction system is 50-300 DEG C, the reaction temperature of the intermediate is 20-120 DEG C, temperature and pressure values are monitored by temperature sensors and pressure sensors arranged in the reaction box 8, the first reaction tube 9 and the second reaction tube 11, and the reaction temperature of the inner pipeline 2 is 50-110 DEG C.

[0046] Further optimization scheme, the outer shell 1 and the inner pipeline 2 are provided with spiral plates 12. The spiral plates 12 are arranged to form annular flow channels between the outer shell 1 and the inner pipeline 2, so that the medium residence time can be ensured, and the uniformity of temperature distribution is improved.

[0047] Further optimization scheme, the temperature monitoring module includes a temperature sensor.

[0048] Further optimization scheme, the pressure monitoring module includes a pressure sensor.

[0049] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it can not be understood as the limitation of the utility model.

[0050] The above-described embodiments are merely preferred modes of the present application, and are not intended to limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A pipe reactor for preparing a lignin-based surfactant, characterized in that, The utility model relates to a kind of multi-stage reaction system, including: Reactor main body, the reactor main body includes outer shell (1) and inner pipeline (2), outer shell (1) both ends symmetrical detachable connection has end cap (3), inner pipeline (2) passes through the end cap (3) and is fixed with connecting head (4), end cap (3) is opened with medium mouth respectively; Primary reaction system, the primary reaction system is installed at the top of the outer shell (1); Secondary reaction system, the secondary reaction system input end is connected with the primary reaction system, and the output end passes through the outer shell (1) and is communicated with the inner pipeline (2); Intermediate reaction system, the intermediate reaction system is installed in the side of the outer shell (1), and is communicated between the inner pipeline (2); Circulatory system, the circulatory system is installed at the bottom of the outer shell (1), and the circulatory system includes filter (5), heater (6) and circulating pump (7) in series, the filter (5) input end is communicated with the end cap (3) of the outer shell (1) rear end, and the output end of the circulating pump (7) is communicated with the end cap (3) of the outer shell (1) front end; Wherein, the primary reaction system, the secondary reaction system, the intermediate reaction system and the inner pipeline (2) are respectively installed with temperature monitoring module and pressure monitoring module.

2. A pipe reactor for preparing a lignin-based surfactant according to claim 1, characterized in that: The primary reaction system includes reaction box (8), and the reaction box (8) is fixed on the outer shell (1).

3. A pipe reactor for preparing a lignin-based surfactant according to claim 2, characterized in that: The secondary reaction system includes first reaction tube (9), and the first reaction tube (9) is provided with several groups, and the first reaction tube (9) is fixed on the side wall of the outer shell (1), and one end of the first reaction tube (9) penetrates the outer shell (1) and extends into the inner pipeline (2), the side wall of the first reaction tube (9) is fixedly connected with conveying pipe (10), the conveying pipe (10) is fixedly communicated between one end and the reaction box (8), and the negative pressure pump is installed on the conveying pipe (10).

4. A pipe reactor for preparing a lignin-based surfactant according to claim 1, characterized in that: The secondary reaction system includes second reaction tube (11), and the second reaction tube (11) is provided with several groups, and the second reaction tube (11) is fixed on the outer shell (1), and one end of the second reaction tube (11) extends into the inner pipeline (2).

5. A pipe reactor for preparing a lignin-based surfactant according to claim 1, characterized by: Spiral plate (12) is arranged between the outer shell (1) and the inner pipeline (2).

6. A pipe reactor for preparing a lignin-based surfactant according to claim 1, characterized by: The temperature monitoring module includes temperature sensor.

7. A pipe reactor for preparing a lignin-based surfactant according to claim 1, characterized by: The pressure monitoring module includes pressure sensor.

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