Equipment for separating calcium carbonate and sodium hydroxide after causticization reaction
By designing a separation device including a vacuum filter and a gas-liquid separator, the problem of easy accumulation of calcium carbonate and sodium hydroxide separation in the prior art is solved, and a stable and efficient continuous separation process is achieved.
Patent Information
- Application Number
- CN202422057749.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The existing methods of separating the mixture of calcium carbonate and sodium hydroxide through multiple centrifuges are prone to pile up materials, high labor intensity, low separation efficiency, semi-continuous process, and unstable system operation.
A separation device including a vacuum filter, a gas-liquid separator, a storage tank, a vacuum pump, a water cooler and a liquid accumulation tank is designed to separate calcium carbonate through a vacuum filter and sodium hydroxide is separated by a gas-liquid separator to realize the operation of a continuous process.
The material pile phenomenon is effectively avoided, the labor intensity of the workers is reduced, the separation efficiency is improved, the process becomes continuous, the system operates stably, and the production efficiency is improved.
Smart Images
Figure CN222943091U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of separation of calcium carbonate and sodium hydroxide, in particular to equipment for separating calcium carbonate and sodium hydroxide after causticizing reaction. Background Art
[0002] The sodium phenol salt decomposition process generally includes two units, namely, decomposition and causticizing. In the causticizing unit, calcium hydroxide and sodium carbonate react in the causticizer to generate a mixture of calcium carbonate and sodium hydroxide, which is then discharged from the outlet of the causticizer. The mixture of calcium carbonate and sodium hydroxide is then separated from calcium carbonate and sodium hydroxide by multiple centrifuges. However, the separation method using the centrifuge is prone to pile-up and requires frequent manual discharge after pile-up, which results in high labor intensity for operators. At the same time, the entire separation process is a semi-continuous process, the system runs unsteadily, and the separation efficiency is low. Summary of the invention
[0003] In order to solve the problems that the existing method of separating a mixture of calcium carbonate and sodium hydroxide by multiple centrifuges is prone to pile-up and the separation method is a semi-continuous process, the system runs unsteadily and the separation efficiency is low, the utility model provides a new device for separating calcium carbonate and sodium hydroxide after causticizing reaction.
[0004] The utility model is realized by adopting the following technical solutions:
[0005] A device for separating calcium carbonate and sodium hydroxide after causticizing reaction, comprising a vacuum filter, a gas-liquid separator, a storage tank, a vacuum pump, a water cooler, and a liquid storage tank, wherein the vacuum filter is provided with a mixture inlet, a solid phase outlet, and a gas-liquid phase outlet, the gas-liquid separator is provided with a gas-liquid inlet, a liquid phase separation outlet, and a gas phase separation outlet, the storage tank is provided with a liquid storage inlet, the vacuum pump is provided with a gas phase inlet, a gas-liquid outlet, and a liquid inlet, the water cooler is provided with a liquid inlet and a liquid outlet, and the liquid storage tank is provided with a gas-liquid inlet, an exhaust gas outlet, and a liquid reflux port The solid phase outlet of the vacuum filter is used to discharge the separated calcium carbonate, the gas-liquid phase outlet of the vacuum filter is connected to the gas-liquid inlet of the gas-liquid separator, the liquid phase separation outlet of the gas-liquid separator is connected to the liquid storage inlet of the storage tank, the gas phase separation outlet of the gas-liquid separator is connected to the gas phase inlet of the vacuum pump, the gas-liquid outlet of the vacuum pump is connected to the gas-liquid inlet of the liquid accumulation tank, the exhaust gas outlet of the liquid accumulation tank is used to discharge the exhaust gas, the liquid reflux port of the liquid accumulation tank is connected to the liquid inlet of the water cooler, and the liquid outlet of the water cooler is connected to the liquid inlet of the vacuum pump.
[0006] When in use, the mixture inlet of the vacuum filter is connected to the outlet of the causticizer. After the mixture of calcium carbonate and sodium hydroxide is separated by the separation equipment, the calcium carbonate is discharged from the solid phase outlet of the vacuum filter, and the sodium hydroxide is discharged from the gas-liquid phase outlet of the vacuum filter to the gas-liquid separator for gas-liquid separation, and then discharged from the liquid phase separation outlet of the gas-liquid separator to the storage tank, thereby completing the separation of calcium carbonate and sodium hydroxide.
[0007] Furthermore, the tail gas outlet of the liquid storage tank and the tail gas outlet of the causticizer are both connected to the same tail gas treatment system. The structure is rationalized and standardized.
[0008] The beneficial effects of the utility model are as follows: when the separation equipment described in the utility model is used to separate the mixture of calcium carbonate and sodium hydroxide, pile-up phenomenon is not easy to occur, the labor intensity of operators is reduced, and the separation process is a continuous process with high separation efficiency and stable system operation, thereby improving the production efficiency as a whole. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The accompanying drawings herein are incorporated into and constitute a part of the specification, show embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.
[0010] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] In the figure: 1-causticizer, 2-vacuum filter, 3-gas-liquid separator, 4-storage tank, 5-vacuum pump, 6-water cooler, 7-liquid storage tank. DETAILED DESCRIPTION
[0013] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0014] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0015] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.
[0016] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0017] like Figure 1 As shown, a device for separating calcium carbonate and sodium hydroxide after causticizing reaction comprises a vacuum filter 2, a gas-liquid separator 3, a storage tank 4, a vacuum pump 5, a water cooler 6, and a liquid storage tank 7. The vacuum filter 2 is provided with a mixture inlet, a solid phase outlet, and a gas-liquid phase outlet. The gas-liquid separator 3 is provided with a gas-liquid inlet, a liquid phase separation outlet, and a gas phase separation outlet. The storage tank 4 is provided with a liquid storage inlet. The vacuum pump 5 is provided with a gas phase inlet, a gas-liquid outlet, and a liquid inlet. The water cooler 6 is provided with a liquid inlet and a liquid outlet. The liquid storage tank 7 is provided with a gas-liquid inlet, an exhaust gas outlet, and a liquid reflux port. The solid phase outlet of the vacuum filter 2 is used to discharge the separated calcium carbonate, the gas-liquid phase outlet of the vacuum filter 2 is connected to the gas-liquid inlet of the gas-liquid separator 3, the liquid phase separation outlet of the gas-liquid separator 3 is connected to the liquid storage inlet of the storage tank 4, the gas phase separation outlet of the gas-liquid separator 3 is connected to the gas phase inlet of the vacuum pump 5, the gas-liquid outlet of the vacuum pump 5 is connected to the gas-liquid inlet of the liquid accumulation tank 7, the exhaust gas outlet of the liquid accumulation tank 7 is used to discharge the exhaust gas, the liquid reflux port of the liquid accumulation tank 7 is connected to the liquid inlet of the water cooler 6, and the liquid outlet of the water cooler 6 is connected to the liquid inlet of the vacuum pump 5.
[0018] When in use, the mixture inlet of the vacuum filter 2 is connected to the outlet of the causticizer 1. After the mixture of calcium carbonate and sodium hydroxide is separated by the separation equipment, the calcium carbonate is discharged from the solid phase outlet of the vacuum filter 2, and the sodium hydroxide is discharged from the gas-liquid phase outlet of the vacuum filter 2 to the gas-liquid separator 3 for gas-liquid separation, and then discharged from the liquid phase separation outlet of the gas-liquid separator 3 to the storage tank 4, thereby completing the separation of calcium carbonate and sodium hydroxide.
[0019] In specific implementation, the tail gas outlet of the liquid storage tank 7 and the tail gas outlet of the causticizer 1 are both connected to the same tail gas treatment system. The structure is rationalized and standardized.
[0020] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.
Claims
1. A device for separating calcium carbonate and sodium hydroxide after causticizing reaction, characterized in that: The invention comprises a vacuum filter (2), a gas-liquid separator (3), a storage tank (4), a vacuum pump (5), a water cooler (6), and a liquid storage tank (7). The vacuum filter (2) is provided with a mixture inlet, a solid phase outlet, and a gas-liquid phase outlet. The gas-liquid separator (3) is provided with a gas-liquid inlet, a liquid phase separation outlet, and a gas phase separation outlet. The storage tank (4) is provided with a liquid storage inlet. The vacuum pump (5) is provided with a gas phase inlet, a gas-liquid outlet, and a liquid inlet. The water cooler (6) is provided with a liquid inlet and a liquid outlet. The liquid storage tank (7) is provided with a gas-liquid inlet, an exhaust gas outlet, and a liquid reflux outlet. The solid phase outlet of the vacuum filter (2) is provided with a gas-liquid inlet, an exhaust gas outlet, and a liquid reflux outlet. The vacuum filter (2) is used to discharge the separated calcium carbonate. The gas-liquid phase outlet of the vacuum filter (2) is connected to the gas-liquid inlet of the gas-liquid separator (3). The liquid phase separation outlet of the gas-liquid separator (3) is connected to the liquid storage inlet of the storage tank (4). The gas phase separation outlet of the gas-liquid separator (3) is connected to the gas phase inlet of the vacuum pump (5). The gas-liquid outlet of the vacuum pump (5) is connected to the gas-liquid inlet of the liquid storage tank (7). The tail gas outlet of the liquid storage tank (7) is used to discharge the tail gas. The liquid reflux port of the liquid storage tank (7) is connected to the liquid inlet of the water cooler (6). The liquid outlet of the water cooler (6) is connected to the liquid inlet of the vacuum pump (5).
2. The calcium carbonate and sodium hydroxide separation device after the causticizing reaction according to claim 1, characterized in that: The tail gas outlet of the liquid accumulation tank (7) and the tail gas outlet of the causticizer (1) are both connected to the same tail gas treatment system.