CN203303917U

CN203303917U - Alkali device

Info

Publication number: CN203303917U
Application number: CN201320258091XU
Authority: CN
Inventors: 杨芳
Original assignee: 周建东
Priority date: 2013-05-10
Filing date: 2013-05-10
Publication date: 2013-11-27
Anticipated expiration: 2023-05-10

Abstract

The utility model discloses an alkali device, comprising an alkali kettle and a reaction kettle, wherein the alkali kettle is connected with the reaction kettle through a pipeline; an insulating layer is arranged outside the pipeline; and a heater strip is wound between the pipeline and the insulating layer. According to the alkali device, a heater strip jacket heating device is arranged outside an alkali kettle discharge pipeline; the pipeline can be subjected to insulated heating, so that concentrated alkali is prevented from being separated out when flowing through the pipeline due to reduction of the solubility caused by temperature reduction; the condition that the concentrated alkali can be smoothly added to the reaction kettle is ensured; a steam pipeline does not need to be added to carry out heating insulation. Therefore, the alkali device has the advantages of being simple in structure and strong in practicability.

Description

A kind of choline device

Technical field

The utility model relates to a kind of choline device, belongs to the chemical production device field.

Background technology

In the cellulose ether production process, need to use NaOH and carry out the cellulose quaternization, the concentration of NaOH is generally between 60～75%, but because the solubility of NaOH under normal temperature is limited, on market, the maximum concentration naoh concentration is only 48% left and right, so in the production of cellulose ether, all use solid sodium hydroxide production at present, and need to enter reactor through a segment pipe from the sodium hydroxide solution after choline still choline, if exposed tube is outdoor, concentrated base descends because temperature reduces solubility, NaOH can be separated out in pipeline, thereby be unfavorable for that concentrated base enters in reactor smoothly.Existing device generally adopts the mode of steam jacket heating to heat pipeline, in the pipeline process of flowing through, separates out solid to avoid concentrated base, yet owing to adopting Steam Heating that jet chimney, complicated structure need to be set.

The utility model content

The utility model is for the prior art deficiency, and purpose is to provide a kind of pipeline heating choline device easily to being connected between choline still and reactor.

For achieving the above object, the technical solution adopted in the utility model is as follows: a kind of choline device, comprise choline still and reactor, and described choline still is connected by pipeline with reactor, described pipeline is outside equipped with heat-insulation layer, is wound with heater strip between described pipeline and heat-insulation layer.

Described heat-insulation layer material is the EPS plate.

Described choline still is jacket reactor.

Compared with prior art, the beneficial effects of the utility model are mainly reflected in: choline still discharge pipe is outside equipped with heating wire chuck heater, can carry out Heat preservation to pipeline, thereby avoid concentrated base cause solubility to reduce and separate out in the pipeline process of flowing through because temperature descends, guarantee that concentrated base can add in reactor smoothly; And do not need to set up jet chimney and carry out heat tracing, have advantages of simple in structure, practical.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the pipeline configuration schematic diagram.

The specific embodiment

Below in conjunction with specific embodiment, structure of the present utility model is described further.

As shown in Figure 1 and Figure 2, a kind of choline device, comprise choline still 1 and reactor 4, described choline still 1 is connected by pipeline 2 with reactor 4, described pipeline 2 is outside equipped with heat-insulation layer 3, between described pipeline 2 and heat-insulation layer 3, be wound with heater strip 5, described heat-insulation layer 3 materials are the EPS plate, and described choline still 1 is jacket reactor.

Because descending, the solubility with temperature of NaOH reduces, for fear of concentrated base, because descending, temperature separates out in pipeline, choline still 1 is set to jacket reactor, pipeline 2 is outside equipped with EPS plate heat-insulation layer 3, and also be wound with heater strip 5 between pipeline 2 and heat-insulation layer 3, realization is carried out the heat tracing effect to pipeline 2, avoids concentrated base to separate out in pipeline 2, thereby guarantees the entering smoothly in reactor 4 of concentrated base; Pipeline 2 adopts heating wire 5 chuck heaters, and does not adopt the Steam Heating mode, avoids using jet chimney, has advantages of simple in structure, practical.

Claims

1. choline device, comprise choline still (1) and reactor (4), described choline still (1) is connected by pipeline (2) with reactor (4), it is characterized in that: described pipeline (2) is outside equipped with heat-insulation layer (3), is wound with heater strip (5) between described pipeline (2) and heat-insulation layer (3).

2. a kind of choline device as claimed in claim 1, it is characterized in that: described heat-insulation layer (3) material is the EPS plate.

3. a kind of choline device as claimed in claim 1, it is characterized in that: described choline still (1) is jacket reactor.