CN210815177U

CN210815177U - Circulation heat preservation's sodium silicate reation kettle

Info

Publication number: CN210815177U
Application number: CN201921462560.3U
Authority: CN
Inventors: 李霆云; 李灵波; 候杰君; 李翔; 姜薇
Original assignee: Luoyang Hengxiang Technology Co ltd
Current assignee: Luoyang Hengxiang Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-23
Anticipated expiration: 2029-09-04

Abstract

A sodium silicate reaction kettle with a circulating heat preservation function comprises a roller kettle body and a steam inlet pipeline, wherein the roller kettle body comprises a reaction cavity and a heat preservation interlayer cavity surrounding the outer layer of the reaction cavity, and the steam inlet pipeline is communicated with the reaction cavity; the reaction cavity is also communicated with an overflow pipeline, the overflow pipeline is connected with an overflow valve A and a valve in parallel, and the overflow pipeline is communicated with the heat-insulating interlayer cavity through the overflow valve A or the valve. The utility model discloses let in heat preservation intermediate layer chamber storage with the steam that the temperature has reduced as heat preservation gas, played the heat preservation effect to the reaction chamber to after new raw materials are added, preheat the raw materials of reaction intracavity with the heat preservation gas of heat preservation intermediate layer intracavity storage as preheating gas, improved steam heat utilization efficiency, reduced the consumption of steam heat ability.

Description

Circulation heat preservation's sodium silicate reation kettle

Technical Field

The utility model belongs to the technical field of sodium silicate production facility technique and specifically relates to a sodium silicate reation kettle that circulates heat preservation is related to.

Background

Sodium silicate, commonly known as water glass and sodium silicate, is produced by two major methods, namely a solid phase method and a liquid phase method. The liquid phase method is also called wet method, which mostly uses caustic soda and quartz sand as raw materials, uses steam as a heat source, mixes the raw materials, adds the mixture into a reaction kettle, and cooks the mixture under high pressure to prepare the catalyst. The liquid phase method for producing sodium silicate has simple process and high yield, but consumes more energy.

The reaction kettle for preparing the sodium silicate usually adopts a roller reaction kettle, the raw materials of caustic soda and quartz sand are added into the roller reaction kettle, and then steam with the temperature of 120-. The reaction time of high-pressure cooking is long, usually 7-9 hours, and the self rolling of the roller reaction kettle accelerates the heat loss during the reaction. In order to ensure the normal operation of the reaction, part of high-temperature and high-pressure steam needs to be supplemented into the reaction kettle frequently, and part of steam with reduced temperature needs to be discharged, so as to ensure the constancy of the temperature and the pressure in the reaction kettle. The discharged steam with reduced temperature still has great heat energy and is wastefully discharged into the atmosphere, which causes energy consumption.

SUMMERY OF THE UTILITY MODEL

In order to overcome not enough in the background art, the utility model discloses a heat retaining sodium silicate reation kettle circulates, its aim at: the steam with reduced temperature is stored as heat preservation gas, and the heat preservation gas is used as preheating gas to preheat the raw material in the next work, so that the steam consumption is reduced.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a sodium silicate reaction kettle with a circulating heat preservation function comprises a roller kettle body and a steam inlet pipeline, wherein the roller kettle body comprises a reaction cavity and a heat preservation interlayer cavity surrounding the outer layer of the reaction cavity, and the steam inlet pipeline is communicated with the reaction cavity; the reaction cavity is also communicated with an overflow pipeline, the overflow pipeline is connected with an overflow valve A and a valve in parallel, and the overflow pipeline is communicated with the heat-insulating interlayer cavity through the overflow valve A or the valve.

According to the technical scheme, the heat-insulation interlayer cavity is communicated with a pressure-reducing exhaust pipeline, the pressure-reducing exhaust pipeline is communicated with the atmosphere through an overflow valve B, and the opening pressure set by the overflow valve B is greater than the opening pressure set by the overflow valve A.

Further improves the technical proposal that the wall of the heat-insulating interlayer cavity is provided with heat-insulating materials.

The technical scheme is further improved, and the volume of the heat-insulating interlayer cavity is one fifth of that of the reaction cavity.

Owing to adopt above-mentioned technical scheme, compare the background art, the utility model discloses following beneficial effect has:

the utility model discloses let in heat preservation intermediate layer chamber storage with the steam that the temperature has reduced as heat preservation gas, played the heat preservation effect to the reaction chamber to after new raw materials are added, preheat the raw materials of reaction intracavity with the heat preservation gas of heat preservation intermediate layer intracavity storage as preheating gas, improved steam heat utilization efficiency, reduced the consumption of steam heat ability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention for storing heat preservation gas.

FIG. 2 is a schematic diagram of a structure for preheating a raw material by using a heat-preserving gas.

In the figure: 1. a drum kettle body; 1.1, a reaction cavity; 1.2, a heat-preservation interlayer cavity; 2. steam enters the pipeline; 3. an overflow conduit; 4. an overflow valve A; 5. a valve; 6. a pressure reducing exhaust conduit; 7. and an overflow valve B.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

A sodium silicate reaction kettle with circulation heat preservation is shown in figures 1 and 2 and comprises a roller kettle body 1 and a steam inlet pipeline 2, wherein the roller kettle body 1 comprises a reaction cavity 1.1 and a heat preservation interlayer cavity 1.2 surrounding the outer layer of the reaction cavity 1.1, and the steam inlet pipeline 2 is communicated with the reaction cavity 1.1; the reaction cavity 1.1 is also communicated with an overflow pipeline 3, the overflow pipeline 3 is connected with an overflow valve A4 and a valve 5 in parallel, and the overflow pipeline 3 is communicated with the heat-insulating interlayer cavity 1.2 through the overflow valve A4 or the valve 5. In order to facilitate the circulation of steam, the steam inlet pipeline 2 is arranged at one end of the roller kettle body 1, and the overflow pipeline 3 is arranged at the other end of the roller kettle body 1.

As shown in fig. 1, when the temperature and the pressure of the reaction chamber 1.1 are reduced, high-temperature and high-pressure steam needs to be supplemented to the reaction chamber 1.1, the steam pressure introduced into the steam inlet pipe 2 needs to be greater than the reaction pressure set inside the reaction chamber 1.1, at this time, the relief valve a4 opens the valve under the action of the pressure, and the steam with the reduced temperature inside the reaction chamber 1.1 enters the heat-insulating interlayer chamber 1.2 through the relief valve a 4. The heat preservation intermediate layer chamber 1.2 on the cylinder cauldron body 1 itself just can keep apart the heat preservation to reaction chamber 1.1, and the steam that heat preservation intermediate layer chamber 1.2 let in has more played the heat preservation effect to reaction chamber 1.1, even there is the heat loss, also can lose the heat of heat preservation intermediate layer chamber 1.2 steam.

During the reaction, the steam in the heat-insulating interlayer cavity 1.2 has higher heat energy and higher pressure. In order to ensure that the pressure of the heat-insulating interlayer cavity 1.2 is within the pressure range which can be borne by the roller kettle body 1, the heat-insulating interlayer cavity 1.2 is communicated with a pressure-reducing exhaust pipeline 6, the pressure-reducing exhaust pipeline 6 is communicated with the atmosphere through an overflow valve B7, wherein the opening pressure set by the overflow valve B7 is greater than the opening pressure set by the overflow valve A4, and the steam in the heat-insulating interlayer cavity 1.2 is ensured not to be exhausted. When the pressure of the heat-insulating interlayer cavity 1.2 is higher than the pressure which can be borne by the roller kettle body 1, the overflow valve B7 is opened, and part of steam is discharged to the atmosphere.

In order to ensure that the heat energy of the steam in the heat-insulating interlayer cavity 1.2 is lost as little as possible, the cavity wall of the heat-insulating interlayer cavity 1.2 is provided with a heat-insulating material.

As shown in FIG. 2, after the reaction is finished, the material port of the reaction chamber 1.1 is opened, the reaction product is discharged, and new raw material is added, because the temperature of the new raw material is lower, for example, heating to the reaction temperature requires larger heat energy. At the moment, the valve 5 is opened, high-temperature and high-pressure steam in the heat-insulating interlayer cavity 1.2 enters the reaction cavity 1.1 through the overflow pipeline 3, the raw materials in the reaction cavity 1.1 are preheated, the temperature of the raw materials is rapidly increased, when the steam pressure in the heat-insulating interlayer cavity 1.2 is reduced to the atmospheric pressure, the valve 5 is closed, the steam is introduced into the steam inlet pipeline 2, and the temperature and the pressure of the reaction cavity 1.1 reach set reaction values.

In order to ensure the maximum utilization of heat energy, the volume of the heat-insulating interlayer cavity 1.2 is one fifth of the volume of the reaction cavity 1.1. The steam in the heat-insulating interlayer cavity 1.2 is usually about 0.5Mpa, when the pressure is reduced to 1 atmosphere, the volume is expanded by 5 times, the reaction cavity 1.1 can be approximately filled with the steam, the original low-temperature air in the reaction cavity 1.1 is discharged, and the raw materials are preheated.

The utility model discloses let in heat preservation intermediate layer chamber 1.2 storage with the steam that the temperature has reduced as the heat preservation gas to reaction chamber 1.1 has played the heat preservation effect, and after new raw materials are added, preheats the raw materials of gas in reaction chamber 1.1 as preheating the heat preservation gas of storing in the intermediate layer chamber 1.2 that will keep warm, has improved the utilization ratio of steam heat energy, has reduced the consumption of steam heat energy.

The part of the utility model not detailed is prior art. 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 silicate reation kettle that circulation heat preservation, includes the cylinder cauldron body (1) and steam admission pipeline (2), characterized by: the roller kettle body (1) comprises a reaction cavity (1.1) and a heat-preservation interlayer cavity (1.2) surrounding the outer layer of the reaction cavity (1.1), and the steam inlet pipeline (2) is communicated with the reaction cavity (1.1); the reaction cavity (1.1) is also communicated with an overflow pipeline (3), the overflow pipeline (3) is connected with an overflow valve A (4) and a valve (5) in parallel, and the overflow pipeline (3) is communicated with the heat-preservation interlayer cavity (1.2) through the overflow valve A (4) or the valve (5).

2. The sodium silicate reaction kettle with the circulating heat preservation function as claimed in claim 1, is characterized in that: the heat-preservation interlayer cavity (1.2) is communicated with a pressure-reducing exhaust pipeline (6), the pressure-reducing exhaust pipeline (6) is communicated with the atmosphere through an overflow valve B (7), wherein the set opening pressure of the overflow valve B (7) is greater than the set opening pressure of the overflow valve A (4).

3. The sodium silicate reaction kettle with the circulating heat preservation function as claimed in claim 1, is characterized in that: and a heat insulation material is arranged on the wall of the heat insulation interlayer cavity (1.2).

4. The sodium silicate reaction kettle with the circulating heat preservation function as claimed in claim 1, is characterized in that: the volume of the heat-preservation interlayer cavity (1.2) is one fifth of that of the reaction cavity (1.1).