Potassium carbonate multi-effect evaporator

Abstract

The utility model is suitable for the technical field of evaporators, and provides a potassium carbonate multi-effect evaporator which comprises a plurality of evaporators and a filtered gas conveying assembly, and the evaporators are arranged in sequence; the evaporators comprise a first-effect evaporator, a second-effect evaporator and a third-effect evaporator; the first-effect evaporator, the second-effect evaporator and the third-effect evaporator are connected through water pipes, and water pumps are installed on the water pipes and used for conveying water flow in sequence. Heating assemblies are arranged in the evaporators and used for heating liquid in the evaporators; the filtered gas conveying assembly is arranged at the top end of each evaporator so that superior gas can be transferred one by one. Wherein the evaporator at the tail end is also provided with a precooler, and the precooler is connected with an external crystallizer; according to the multi-effect evaporator, the evaporation speed can be greatly increased, energy consumption during work is reduced, the interior of the multi-effect evaporator can be conveniently disassembled and maintained, and therefore the practicability of the multi-effect evaporator is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of evaporator technology, and in particular relates to a potassium carbonate multi-effect evaporator. Background Technology

[0002] Potassium carbonate is an inorganic compound, appearing as a white crystalline powder. It is readily soluble in water, producing an alkaline aqueous solution. It is insoluble in ethanol, acetone, and ether. It is highly hygroscopic, absorbing carbon dioxide and moisture from the air upon exposure, transforming into potassium bicarbonate. Therefore, it should be packaged in sealed containers. Potassium carbonate production methods include the wood ash process, the Leblanc process, electrolysis, and ion exchange, with electrolysis and ion exchange being the most commonly used.

[0003] Currently, the multi-effect evaporator commonly used in potassium carbonate production consists of multiple evaporators and centrifuges connected in series. The multiple evaporators and centrifuges work sequentially to achieve evaporation. However, during the evaporation process, there are problems such as slow evaporation speed and high energy consumption. Furthermore, when there are problems with the internal components of the evaporator, it is not convenient to replace or repair them, resulting in low practical value of the existing multi-effect evaporators. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a potassium carbonate multi-effect evaporator, which aims to solve the problems existing in the background art.

[0005] This utility model embodiment is implemented as follows: a potassium carbonate multi-effect evaporator includes an evaporator, and further includes:

[0006] Multiple evaporators are provided, and the evaporators are arranged in sequence.

[0007] Each of the evaporators is equipped with a heating element for heating the liquid inside the evaporator.

[0008] A gas delivery assembly is arranged at the top of each evaporator to facilitate the transfer of the upper gas one by one.

[0009] The evaporator at the end is also equipped with a precooler, which is connected to an external crystallizer.

[0010] Preferably, the evaporator includes a single-effect evaporator, a double-effect evaporator, and a triple-effect evaporator;

[0011] The first-effect evaporator, second-effect evaporator, and third-effect evaporator are connected by water pipes, and water pumps are installed on the water pipes to deliver water sequentially.

[0012] Preferably, condensate pipes are installed on the same side of the first-effect evaporator, the second-effect evaporator, and the third-effect evaporator, and a valve is installed on each condensate pipe.

[0013] Preferably, the heating assembly includes a heating tube, a threaded rod, and a connecting tube;

[0014] Heating tubes are installed in the single-effect evaporator, the double-effect evaporator and the triple-effect evaporator;

[0015] The heating tube has multiple threaded rods installed on its side, and each threaded rod is equipped with a connecting tube.

[0016] Preferably, the gas delivery assembly includes a gas delivery pipe, a regulating valve, a baffle plate, and a membrane distributor;

[0017] Among them, the adjacent first-effect evaporator, second-effect evaporator and third-effect evaporator are all connected by gas supply pipes, and each gas supply pipe is equipped with a regulating valve.

[0018] The top of the first-effect evaporator, second-effect evaporator and third-effect evaporator are all equipped with baffles, and a film distributor is arranged on the upper surface of the baffles.

[0019] The present invention provides a potassium carbonate multi-effect evaporator that can significantly improve the evaporation rate, reduce energy consumption during operation, and facilitate internal disassembly and maintenance, thereby effectively improving the practicality of the multi-effect evaporator. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a potassium carbonate multi-effect evaporator provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the internal structure of the first-effect evaporator in a potassium carbonate multi-effect evaporator provided in this embodiment of the present invention;

[0022] Figure 3 A three-dimensional structural diagram of a heating tube in a potassium carbonate multi-effect evaporator provided for an embodiment of this utility model;

[0023] In the attached diagram: 1-Single-effect evaporator; 2-Double-effect evaporator; 3-Triple-effect evaporator; 4-Condensate pipe; 5-Valve; 6-Water pipe; 7-Water pump; 8-Precooler; 9-Crystallizer; 10-Gas supply pipe; 11-Regulating valve; 12-Heating tube; 13-Threaded rod; 14-Connecting pipe; 15-Baffle plate; 16-Film distributor. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0028] like Figures 1-3 The diagram shown is a structural diagram of a potassium carbonate multi-effect evaporator according to an embodiment of the present invention. It includes an evaporator and a gas filtration and conveying assembly. Multiple evaporators are provided and arranged sequentially. Each evaporator is equipped with a heating assembly for heating the liquid inside the evaporator. The gas filtration and conveying assembly is arranged at the top of each evaporator to facilitate the transfer of the upper gas one by one. The evaporator at the end is also equipped with a precooler 8, which is connected to an external crystallizer 9.

[0029] This utility model provides a potassium carbonate multi-effect evaporator, in which multiple evaporators work one after another, which can greatly improve the evaporation speed and reduce the energy consumption of the evaporators during operation. Moreover, the internal threaded connection makes it easy to disassemble and repair in case of problems with internal components, thereby effectively improving the practicality of the multi-effect evaporator.

[0030] like Figure 1 As shown, in a preferred embodiment of the present invention, the evaporator includes a first-effect evaporator 1, a second-effect evaporator 2, and a third-effect evaporator 3;

[0031] The first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3 are connected by a water pipe 6, and a water pump 7 is installed on the water pipe 6 for sequentially transporting water.

[0032] In one embodiment of this utility model, the material is preheated before entering the first-effect evaporator 1 during operation. When the water pump 7 is working, the liquid at the bottom of the first-effect evaporator 1 can be transported to the second-effect evaporator 2 along the water pipe 6. When the secondary water pump is working, the water in the second-effect evaporator 2 can be transported to the third-effect evaporator 3 along the water pipe 6.

[0033] like Figure 1 As shown, in another preferred embodiment of the present invention, condensate pipes 4 are installed on the same side of the first-effect evaporator 1, the second-effect evaporator 2 and the third-effect evaporator 3, and a valve 5 is installed on each condensate pipe 4.

[0034] In one embodiment of this utility model, when the water vapor in the first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3 condenses upon encountering cold and moves downwards, the water at the bottom of the first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3 can be discharged outwards one by one when the valve body 5 is opened.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, in another preferred embodiment of the present invention, the heating assembly includes a heating tube 12, a threaded rod 13, and a connecting tube 14;

[0036] Heating tubes 12 are installed in the first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3.

[0037] The heating tube 12 has multiple threaded rods 13 installed on its side, and each threaded rod 13 is provided with a connecting tube 14.

[0038] In one embodiment of this utility model, when it is necessary to repair the heating tubes 12 inside the first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3, the tops of the first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3 will be disassembled. Since the tops of the first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3 are fixed by threaded connection, the disassembly process can be greatly simplified, so that the staff can clean and repair the interior.

[0039] like Figure 1 and Figure 2 As shown, in another preferred embodiment of the present invention, the gas filtration and delivery assembly includes a gas delivery pipe 10, a regulating valve 11, a partition 15, and a membrane distributor 16.

[0040] Among them, the adjacent first-effect evaporator 1, second-effect evaporator 2 and third-effect evaporator 3 are all connected by gas supply pipe 10, and each gas supply pipe 10 is equipped with a regulating valve 11.

[0041] The top of the first-effect evaporator 1, the second-effect evaporator 2, and the third-effect evaporator 3 are all equipped with a baffle plate 15, and a film spreader 16 is arranged on the upper surface of the baffle plate 15.

[0042] In one embodiment of this utility model, after hot air heats the liquid inside the first-effect evaporator 1, the second-effect evaporator 2 and the third-effect evaporator 3 one by one, the generated hot steam moves upward through the partition 15 and is discharged outward through the film distributor 16.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A potassium carbonate multi-effect evaporator, comprising an evaporator, characterized in that, Also includes: Multiple evaporators are provided, and the evaporators are arranged in sequence. Each of the evaporators is equipped with a heating element for heating the liquid inside the evaporator. A gas delivery assembly is arranged at the top of each evaporator to facilitate the transfer of the upper gas one by one. The evaporator at the end is also equipped with a precooler, which is connected to an external crystallizer.

2. A potassium carbonate multi-effect evaporator according to claim 1, characterized in that, The evaporator includes a single-effect evaporator, a double-effect evaporator, and a triple-effect evaporator; The first-effect evaporator, second-effect evaporator, and third-effect evaporator are connected by water pipes, and water pumps are installed on the water pipes to deliver water sequentially.

3. A potassium carbonate multi-effect evaporator according to claim 2, characterized in that, Condensate pipes are installed on the same side of the first-effect evaporator, second-effect evaporator, and third-effect evaporator, and a valve is installed on each condensate pipe.

4. A potassium carbonate multi-effect evaporator according to claim 3, characterized in that, The heating assembly includes a heating tube, a threaded rod, and a connecting tube; Heating tubes are installed in the single-effect evaporator, the double-effect evaporator and the triple-effect evaporator; The heating tube has multiple threaded rods installed on its side, and each threaded rod is equipped with a connecting tube.

5. A potassium carbonate multi-effect evaporator according to claim 4, characterized in that, The gas delivery assembly includes a gas delivery pipeline, a regulating valve, a baffle plate, and a membrane distributor; Among them, the adjacent first-effect evaporator, second-effect evaporator and third-effect evaporator are all connected by gas supply pipes, and each gas supply pipe is equipped with a regulating valve. The top of the first-effect evaporator, second-effect evaporator and third-effect evaporator are all equipped with baffles, and a film distributor is arranged on the upper surface of the baffles.

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