CN-224221032-U - Soda production system with balanced alkali liquor

Abstract

The utility model discloses an alkali liquor balanced soda ash production system. The soda production system with balanced alkali liquor comprises a hot alkali liquid tank, a hot alkali liquid pump, a circulating washing tank, a circulating washing liquid pump, an alkali dissolving tank, a soda liquid pump and a brine causticizing device, wherein the feed liquid in the circulating washing tank is conveyed to the alkali dissolving tank through the circulating washing liquid pump, and the feed liquid in the alkali dissolving tank is conveyed to the brine causticizing device through the soda liquid pump, and the feed liquid in the hot alkali liquid pump is conveyed to the circulating washing tank through the hot alkali liquid pump. The soda production system with balanced alkali liquor solves the problems of blocking, alkali liquor expansion and discharge, can effectively save water and reduces soda production cost.

Inventors

• SUO ZHILU
• WANG HAIRUI
• MA XINCHAO
• LI RUNZHONG
• ZHANG TIANPING
• YU YONGWEN
• WANG ZHENGYU
• NIU MINGYU
• WANG JIANGYUN
• Ku Limin
• MA ZHANLIN

Assignees

• 青海盐湖镁业有限公司

Dates

Publication Date

20260512

Application Date

20250605

Claims (10)

1. 1. The soda production system with balanced alkali liquor comprises a hot alkali liquid tank, a hot alkali liquid pump, a circulating washing tank, a circulating washing liquid pump, a soda dissolving tank, a soda liquid pump and a brine causticizing device, wherein the feed liquid in the circulating washing tank is conveyed to the soda dissolving tank through the circulating washing liquid pump, and the feed liquid in the soda dissolving tank is conveyed to the brine causticizing device through the soda liquid pump.
2. 2. The soda ash production system with balanced lye according to claim 1, wherein the hot lye tank comprises a hot lye tank inlet and a hot lye tank outlet, the hot lye pump comprises a hot lye pump inlet and a hot lye pump outlet, the hot lye tank inlet is at least used for adding desalted water, and the hot lye tank outlet is communicated with the hot lye pump inlet through a pipeline.
3. 3. The soda ash production system balanced by alkali liquor according to claim 2, wherein the circulating washing tank comprises a circulating washing tank inlet, a circulating washing tank outlet and a circulating washing tank fluid supplementing valve, and the hot alkali pump outlet is communicated with the circulating washing tank inlet through a pipeline.
4. 4. The soda ash production system balanced with alkali liquor according to claim 3, wherein the inner diameter of a pipeline connecting the outlet of the hot alkali liquor pump and the inlet of the circulating washing tank is DN100 mm.
5. 5. The soda ash production system with balanced alkali liquor as set forth in claim 3, wherein the liquid replenishing valve of the circulating washing tank is located before the inlet of the circulating washing tank, and the inlet of the circulating washing tank is set in the top of the circulating washing tank.
6. 6. The soda ash production system with balanced lye according to claim 3, wherein the circulating washing liquid pump comprises a circulating washing liquid pump inlet and a circulating washing liquid pump outlet, and the circulating washing tank outlet is communicated with the circulating washing liquid pump inlet through a pipeline.
7. 7. The soda ash production system balanced by alkali liquor according to claim 6, wherein the alkali dissolving tank comprises an alkali dissolving tank inlet and an alkali dissolving tank outlet, and the circulating washing liquid pump outlet is communicated with the alkali dissolving tank inlet through a pipeline.
8. 8. The soda ash production system with balanced lye according to claim 7, wherein the soda ash pump comprises a soda ash pump inlet and a soda ash pump outlet, and the soda ash tank outlet is communicated with the soda ash pump inlet through a pipeline.
9. 9. The soda ash production system with balanced lye according to claim 8, wherein the soda ash pump outlet is communicated with the brine causticizing device through a pipeline.
10. 10. The soda ash production system with balanced lye according to claim 1, further comprising a pre-device for providing desalinated water which is transported only through a pipeline into the hot soda liquid tank.

Description

Soda production system with balanced alkali liquor Technical Field The utility model belongs to the field of chemical industry, and particularly relates to a soda ash production system with balanced alkali liquor. Background At present, desalted water is used for a hot alkali liquid tank of a light ash process and a circulating washing tank of a heavy ash process in a soda ash production device, alkali liquid concentration is higher due to alkali dust carried in hot alkali liquid and washing liquid passing through washing furnace gas and hydration tail gas in a normal process production process, washing effect is reduced, and sodium carbonate caking of a furnace gas system is caused to be blocked, so that continuous production in a production process is impossible. Part of the washing liquid of the heavy ash process furnace gas washing cycle is used as hydration water, the other part of the washing liquid and the hot alkali liquid of the light ash process furnace gas washing are conveyed to an alkali dissolving tank through a centrifugal pump, and then the alkali liquid is conveyed to a salt water causticizing device through a soda liquid pump to reduce the calcium content in causticized salt water. The consumption of alkali liquor can be reduced under the condition that the content of calcium in the causticized brine of the brine causticizing device is low, so that the alkali liquor is expanded and discharged, and in some production practice cases, the discharge capacity is about 50% of the consumption of the alkali liquor per day, so that a large amount of desalted water and the alkali liquor are wasted, and the cost of the sodium carbonate production water is high. Disclosure of Invention The utility model mainly aims to provide a soda ash production system with balanced alkali liquor, so as to overcome the defects in the prior art. In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model comprises the following steps: The utility model provides an alkali liquor balanced soda production system which comprises a hot alkali liquor tank, a hot alkali liquor pump, a circulating washing tank, a circulating washing liquor pump, a alkali dissolving tank, a soda liquor pump and a brine causticizing device, wherein feed liquor in the circulating washing tank is conveyed to the alkali dissolving tank through the circulating washing liquor pump, feed liquor in the alkali dissolving tank is conveyed to the brine causticizing device through the soda liquor pump, and feed liquor in the hot alkali liquor pump is conveyed to the circulating washing tank through the hot alkali liquor pump. Compared with the prior art, the utility model has the beneficial effects that: (1) Compared with the prior art, the alkali liquor balanced soda production system provided by the utility model has the advantages that the process pipeline for conveying the hot alkali liquor washed by the light ash process furnace gas to the alkali dissolving tank is changed into the circulating washing tank of the heavy ash process furnace gas for washing the chemical water and the furnace gas, the circulating washing tank of the heavy ash process furnace gas can stop adding desalted water, the hot alkali liquor is only washed by the light ash process furnace gas, the circulating washing tank is prevented from supplementing desalted water, the replacement rate of the hot alkali liquor is increased, the concentration of the hot alkali liquor is reduced, the washing effect is increased, the caking phenomenon is avoided, the continuous use in the production process is realized, the alkali liquor concentration can be stabilized, and the desalted water supplementing amount is reduced; (2) The soda production system with balanced alkali liquor provided by the utility model realizes the purposes of saving water in soda production and reducing soda production cost. Drawings In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art. FIG. 1 is a soda ash production system provided in the prior art of the present utility model; FIG. 2 is a schematic illustration of an alkali lye balanced soda ash production system according to an exemplary embodiment of the utility model. The reference numerals comprise a 1-hot alkali liquid tank, a 101-hot alkali liquid tank inlet, a 102-hot alkali liquid tank outlet, a 2-hot alkali liquid pump, a 201-hot alkali liquid pump inlet, a 202-hot alkali liquid pump outlet, a 3-circulation washing tank, a 301-circulation washing tank inlet, a 302-circulation w