Caustic soda evaporation equipment

Abstract

The utility model discloses caustic soda evaporation equipment, and relates to the technical field of caustic soda processing. A mounting box is arranged above the first bottom plate, a top cover is arranged at the top of the mounting box, two limiting blocks are connected to the end of the top cover, and an evaporation box is arranged in the mounting box. The driving motor drives the connecting shaft to rotate, the connecting shaft drives the stirring blade to rotate, the stirring blade drives the scraping blade to scrape caustic soda on the inner wall of the evaporation box, the movement of the scraping blade can prevent materials from being deposited in a stirring container or attached to the wall of the container, and the scraping blade scrapes liquid and the materials from the wall of the container. The opportunities of deposition and scaling are reduced; and the movement and stirring of the liquid can be increased, so that the mixture is more uniformly dispersed and mixed, and the materials are prevented from being deposited in the stirring container or attached to the wall of the container.

Description

Technical Field

[0001] The utility model relates to the technical field of caustic soda processing, in particular to caustic soda evaporation equipment. Background Art

[0002] Caustic soda, also known as sodium hydroxide, is a strong alkaline compound; it is a colorless solid with several crystals at room temperature, which can quickly absorb moisture and dissolve in water. Caustic soda is an important industrial raw material and is widely used in many industries. Caustic soda evaporation refers to the process of removing water from the caustic soda solution through the evaporation process to concentrate the caustic soda. The caustic soda solution is usually composed of caustic soda (sodium hydroxide) and water. The purpose of caustic soda evaporation is to remove water from the solution and increase the concentration of caustic soda to the required concentration. The specific process parameters and equipment of caustic soda evaporation will vary depending on the scale and needs of the application;

[0003] The Chinese patent authorization announcement number is CN212559481U, and the name is a caustic soda evaporation device, including an evaporation tube, a push rod motor is fixedly connected to the top of the evaporation tube, an adjustment shaft is connected to the output end of the push rod motor, the adjustment shaft is connected to a rotating ring through a control device, the rotating ring is connected to the upper and lower side walls of the evaporation tube through bearings, and a stirring device is arranged on the outer side wall of the rotating ring. The utility model divides the heating layer into three layers, upper, middle and lower. When the boiling liquid is continuously reduced, the push rod motor controls the lead screw to rotate, so that the movable chassis moves up, so that the liquid is always in the heating range of the heating layer, and the heating layer will not dry out, causing the solid caustic soda to be over-dried;

[0004] The disadvantages of the above scheme are that: although the above scheme can prevent the caustic soda from being over-drying, the prior art cannot scrape the caustic soda on the inner wall of the evaporation cylinder during stirring. The caustic soda remaining on the inner wall of the evaporation cylinder will form caustic soda scale or caustic soda crystal layer, which may hinder the heat transfer. In addition, the stirring device only rotates in one direction, and the stirring barrel does not rotate with it. The movement of the internal caustic soda solution will be restricted, which may cause part of the liquid to be rotated and stirred while the other parts remain relatively still, resulting in a technical problem of uneven mixing. Utility Model Content

[0005] The utility model aims to provide a caustic soda evaporation device to solve the problem in the prior art that the caustic soda on the inner wall of the evaporation cylinder cannot be scraped during stirring, and the caustic soda residue on the inner wall of the evaporation cylinder will form a caustic soda scale or a caustic soda crystal layer, which may hinder the transfer of heat, and the stirring device can only rotate in one direction, while the stirring barrel does not rotate with it, and the movement of the internal caustic soda solution will be restricted, which may lead to uneven liquid mixing.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A caustic soda evaporation device comprises a bottom plate;

[0008] An installation box is provided above the bottom plate, a top cover is provided on the top of the installation box, two limit blocks are connected to the ends of the top cover, and an evaporation box is provided inside the installation box;

[0009] A driving mechanism is provided on both sides of the installation box, and the two driving mechanisms are symmetrically arranged. Each of the driving mechanisms includes a driving motor and a gear. The driving motor is arranged on the bottom plate 1, and the gear is connected to the driving end of the driving motor. A through hole is provided on the side wall of the installation box, and the gear is inserted through the through hole. A circle of racks meshing with the gear is provided on the outer wall of the evaporation box. A slider is connected to the bottom of the evaporation box, and a slide groove cooperating with the slider is provided at the bottom of the installation box.

[0010] A second bottom plate is provided at the bottom of the evaporator box, a rotating motor is provided inside the second bottom plate, and a stirring mechanism is connected to the driving end of the rotating motor;

[0011] A steam pipeline is provided on the top of the evaporation box, a condenser is provided at the output end of the steam pipeline, and a steam separator is provided at the outlet of the condenser.

[0012] As a further solution of the utility model: a handle is connected to the top cover.

[0013] As a further solution of the utility model: an inner wall of the installation box is provided with a heat-insulating layer.

[0014] As a further solution of the utility model: the stirring mechanism includes a connecting shaft, the connecting shaft is connected to the rotating end of the rotating motor, and two stirring blades are connected to the connecting shaft.

[0015] As a further solution of the utility model: an insert block is connected below the top cover, the insert block is provided with a slot, and the top of the connecting shaft is inserted into the slot.

[0016] As a further solution of the utility model: each stirring blade is connected to a scraper at one end away from the connecting shaft.

[0017] Beneficial effects of the utility model:

[0018] 1. The utility model drives the connecting shaft to rotate by a driving motor, and the connecting shaft drives the stirring blade to rotate, and the stirring blade drives the scraper to scrape the caustic soda on the inner wall of the evaporation box. The movement of the scraper can prevent the material from being deposited in the stirring container or adhering to the container wall. The scraper scrapes the liquid and the material from the container wall, reducing the chance of deposition and scaling; it can also increase the movement and stirring of the liquid, help the mixture to be more evenly dispersed and mixed, and prevent the material from being deposited in the stirring container or adhering to the container wall.

[0019] 2. In the utility model, while the connecting shaft drives the stirring plate to rotate, the driving motor drives the gear to rotate, and the gear drives the meshing rack to move. At the same time, the slider slides on the slide groove, that is, the evaporation box rotates. By rotating the evaporation box and the stirring plate at the same time, the caustic soda solution in the evaporation box can be mixed more effectively, the solution can be mixed evenly, and the reaction can be more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0023] In the figure: 1. bottom plate 1; 2. steam separator; 3. condenser; 4. installation box; 5. top cover; 6. limit block; 7. handle; 8. gear; 9. drive motor; 10. rack; 11. slider; 12. evaporation box; 13. steam pipe; 14. chute; 15. bottom plate 2; 16. rotating motor; 17. connecting shaft; 18. stirring blade; 19. scraper. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 2 As shown, a caustic soda evaporation device comprises a bottom plate 1, a mounting box 4 is arranged above the bottom plate 1, a top cover 5 is arranged on the top of the mounting box 4, a handle 7 is connected to the top cover 5, two limit blocks 6 are connected to the end of the top cover 5, an insulation layer is arranged on the inner wall of the mounting box 4, and an evaporation box 12 is arranged inside the mounting box 4;

[0026] The installation box 4 is provided with driving mechanisms on both sides, and the two driving mechanisms are symmetrically arranged. Each of the driving mechanisms includes a driving motor 9 and a gear 8. The driving motor 9 is arranged on the bottom plate 1, and the gear 8 is connected to the driving end of the driving motor 9. A through hole is opened on the side wall of the installation box 4, and the gear 8 is inserted through the through hole. A circle of racks 10 meshing with the gear 8 is provided on the outer wall of the evaporation box 12, and a slider 11 is connected to the bottom of the evaporation box 12. The bottom of the installation box 4 is provided with a slide groove 14 arranged in cooperation with the slider 11;

[0027] A second bottom plate 15 is provided at the bottom of the evaporation box 12, a rotating motor 16 is provided inside the second bottom plate 15, and a stirring mechanism is connected to the driving end of the rotating motor 16;

[0028] The stirring mechanism includes a connecting shaft 17, which is connected to the rotating end of the rotating motor 16. An insert block is connected below the top cover 5, and a slot is provided on the insert block. The top of the connecting shaft 17 is inserted into the slot. Two stirring blades 18 are connected to the connecting shaft 17, and each stirring blade 18 is connected to a scraper 19 at one end away from the connecting shaft 17.

[0029] A steam pipe 13 is provided on the top of the evaporation box 12 , a condenser 3 is provided at the output end of the steam pipe 13 , and a steam separator 2 is provided at the outlet of the condenser 3 .

[0030] The working principle of the utility model is as follows: when using the device, the top cover 5 is placed on the top of the installation box 4, the limit block 6 on the top cover 5 is clamped on the side wall of the installation box 4, the connecting shaft 17 is inserted into the slot on the plug block below the top cover 5 to prevent the connecting shaft 17 from moving, and then the motor 16 is rotated to drive the connecting shaft 17 to rotate, the connecting shaft 17 drives the stirring blade 18 to rotate, and the stirring blade 18 drives the scraper 19 to scrape the caustic soda on the inner wall of the evaporation box 12. The movement of the scraper 19 can prevent the material from being deposited in the stirring container or attached to the container wall. The scraper 19 scrapes the liquid and the material from the container wall, reducing the chance of deposition and scaling; this scraping movement can increase the movement of the liquid and Stirring helps the mixture to be dispersed and mixed more evenly, and can also prevent the material from being deposited in the stirring container or adhering to the container wall; at the same time, the driving motor 9 drives the gear 8 to rotate, and the gear 8 drives the meshing rack 10 to move, and at the same time the slider 11 slides on the slide 14, that is, the evaporation box 12 rotates, and the evaporation box 12 and the stirring piece 18 rotate at the same time, which can more effectively mix the caustic soda solution in the evaporation box 12, mix the solution evenly, and make the reaction more thorough; when the evaporation box 12 heats the internal caustic soda, the top cover 5 on the top of the installation box 4 is covered on the installation box 4, and the two limit blocks 6 are clamped on the installation box 4, and the interior is kept warm when the caustic soda is heated and evaporated;

[0031] The heated caustic soda vapor passes through the steam pipe 13 into the condenser 3, contacts with the cooling medium in the condenser 3, and is condensed into liquid, i.e., concentrated caustic soda. The liquid and vapor are separated through the steam separator 2 for subsequent processing and use.

[0032] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A caustic soda evaporation device, comprising a bottom plate (1); characterized in that: An installation box (4) is provided above the bottom plate (1), a top cover (5) is provided on the top of the installation box (4), two limit blocks (6) are connected to the ends of the top cover (5), and an evaporation box (12) is provided inside the installation box (4); The installation box (4) is provided with a driving mechanism on both sides, and the two driving mechanisms are symmetrically arranged. Each of the driving mechanisms comprises a driving motor (9) and a gear (8). The driving motor (9) is arranged on a bottom plate (1), and the gear (8) is connected to the driving end of the driving motor (9). A through hole is opened on the side wall of the installation box (4), and the gear (8) is inserted through the through hole. A circle of racks (10) meshing with the gear (8) is provided on the outer wall of the evaporation box (12). A slider (11) is connected to the bottom of the evaporation box (12), and a slide groove (14) cooperating with the slider (11) is provided on the inner bottom of the installation box (4); A second bottom plate (15) is provided at the bottom of the evaporation box (12), a rotating motor (16) is provided inside the second bottom plate (15), and a stirring mechanism is connected to the driving end of the rotating motor (16); A steam pipe (13) is provided at the top of the evaporation box (12), a condenser (3) is provided at the output end of the steam pipe (13), and a steam separator (2) is provided at the outlet of the condenser (3).

2. The caustic soda evaporation equipment according to claim 1, characterized in that: The top cover (5) is connected with a handle (7).

3. The caustic soda evaporation equipment according to claim 1, characterized in that: The inner wall of the installation box (4) is provided with a heat-insulating layer.

4. The caustic soda evaporation equipment according to claim 1, characterized in that: The stirring mechanism comprises a connecting shaft (17), the connecting shaft (17) is connected to the rotating end of the rotating motor (16), and two stirring blades (18) are connected to the connecting shaft (17).

5. The caustic soda evaporation equipment according to claim 4, characterized in that: An insert block is connected below the top cover (5), and a slot is provided on the insert block, and the top of the connecting shaft (17) is inserted into the slot.

6. The caustic soda evaporation equipment according to claim 4, characterized in that: One end of each stirring blade (18) away from the connecting shaft (17) is connected to a scraper blade (19).

Images