Evaporative crystallization device for high-salinity wastewater

Abstract

The utility model discloses a high-salinity wastewater evaporative crystallization device which comprises a base, a heating groove is formed in the base, an evaporation box is arranged at the lower end in the heating groove, the evaporation box is attached to the heating groove, heating blocks are arranged on the inner walls of the four sides and the inner wall of the bottom of the heating groove respectively, and the high-salinity wastewater evaporative crystallization device further comprises a top cover. And the base is arranged right above the base, electric telescopic rods are installed at the four corners of the interior of the base, the output ends of the electric telescopic rods are connected with a top cover, and a transmission cavity is formed in the lower side of the interior of the top cover. According to the high-salinity wastewater evaporative crystallization device, the heating groove can be conveniently opened to take out the evaporation box, the inside and the outside of the evaporation box are thoroughly cleaned, crystals generated by evaporation are prevented from remaining on the inner wall of the evaporation box, use is convenient, meanwhile, wastewater can be heated more uniformly through stirring in the horizontal and vertical directions, and therefore the heating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a high-salt wastewater evaporation and crystallization device. Background Art

[0002] Industrial wastewater includes production wastewater, production sewage and cooling water, which refers to wastewater and waste liquid generated in the industrial production process, which contains industrial production materials, intermediate products, by-products and pollutants generated in the production process that are lost with water. Industrial wastewater is of various types and has complex components. For example, electrolytic salt industrial wastewater contains mercury, heavy metal smelting industrial wastewater contains lead, cadmium and other metals, electroplating industrial wastewater contains cyanide and chromium and other heavy metals, petroleum refining industrial wastewater contains phenol, pesticide manufacturing industrial wastewater contains various pesticides, etc. After being reused, these wastewaters will produce a small amount of high-salt organic wastewater, which mainly contains various inorganic salts and organic pollutants. High-salt wastewater is a kind of wastewater with a high salt content. The salt inside it can be used in industry or other fields after extraction. Generally, the wastewater is filtered and then evaporated and crystallized to precipitate salt from the liquid.

[0003] The existing Chinese patent with announcement number CN212894307U discloses a high-salt wastewater evaporation and crystallization device, including a shell, a support plate is fixedly provided at the bottom of the shell, a working cylinder is fixedly provided at the top of the support plate, heating blocks are respectively clamped on the four side inner walls and the bottom inner wall of the working cylinder, an evaporation box is fixedly provided at the top of the working cylinder, a water inlet pipe is provided at the top of the evaporation box, and the water inlet pipe passes through the shell and extends to the outside of the shell.

[0004] Although the above scheme can ensure the internal part of the shell and form the effect of waste heat utilization, the evaporation box structure of the device is fixed, which makes it inconvenient to place and take it out after use, and is not conducive to cleaning the inside. At the same time, the device lacks stirring of the liquid during heating, resulting in uneven heating of the liquid and low heating efficiency. Therefore, it does not meet the existing needs. In this regard, we propose a high-salt wastewater evaporation and crystallization device. Utility Model Content

[0005] The utility model aims to provide a high-salt wastewater evaporation crystallization device to solve the problems in the above-mentioned background technology that the evaporation crystallization device is inconvenient to place and take out, which makes it difficult to clean the inside and the liquid is heated unevenly, resulting in low heating efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-salt wastewater evaporation crystallization device, comprising a base, a heating tank is provided inside the base, an evaporation box is provided at the lower end of the heating tank, and the evaporation box is fitted with the heating tank, and heating blocks are respectively provided on the inner walls of the four sides and the inner wall of the bottom of the heating tank;

[0007] It also includes a top cover, which is opened just above the base, electric telescopic rods are installed at the four corners inside the base, and the output end of the electric telescopic rod is connected to the top cover, a transmission cavity is opened on the lower side of the top cover, a first rotating shaft is arranged inside the transmission cavity, and one end of the first rotating shaft passes through and extends to the outside of the transmission cavity, a group of second rotating shafts are arranged on both sides of the transmission cavity, and each group of second rotating shafts is evenly distributed and three are arranged, one end of the second rotating shaft passes through and extends to the outside of the transmission cavity, one end of the second rotating shaft located outside the transmission cavity is welded with a first stirring blade, and the outer wall of the first rotating shaft located outside the transmission cavity is welded with four second stirring blades distributed in an annular manner and evenly spaced;

[0008] It also includes limit grooves, which are opened on both sides of the upper end of the base, and limit blocks are arranged on the lower side of one side of the limit groove. Moving blocks are welded on the outer walls of the limit blocks. One end of the limit blocks passes through and extends to the interior of the heating tank, and the limit blocks are slidably matched with the limit grooves.

[0009] Preferably, a servo motor is provided at the upper end of the transmission cavity, and the output end of the servo motor is transmission-connected to the first rotating shaft via a coupling.

[0010] Preferably, bevel gears are provided on one end of the second rotating shaft located inside the transmission cavity and on the outer wall of the first rotating shaft, and three bevel gears are provided on the outer wall of the first rotating shaft at equal intervals, and the bevel gears are meshingly connected with each other.

[0011] Preferably, return springs are provided at the four corners of the inner side of the moving block, one end of the return spring is connected to the limiting groove, and the other end of the return spring is connected to the moving block.

[0012] Preferably, a fan is provided on one side of the upper end of the top cover, and an air supply pipe is provided at one end of the fan.

[0013] Preferably, a rectangular clamping plate is welded to the lower end of the top cover, a rectangular groove is opened at the upper end of the base, and the rectangular groove is adapted to the rectangular clamping plate.

[0014] Preferably, connecting rods are welded to both sides of the lower end of the top cover, and extrusion blocks are welded to the lower ends of the connecting rods.

[0015] Preferably, one end of the limit block located inside the heating groove is bonded and fixed with a heat-resistant rubber sleeve, and the heat-resistant rubber sleeve is sealed and fixed to the heating groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model has a heating groove inside the base and a top cover above the base. After the high-salt waste water is heated and evaporated, the user only needs to start the electric push rod to drive the top cover to move up, so as to open the heating groove and take out the evaporation box, thereby thoroughly cleaning the inside and outside of the evaporation box to prevent crystals generated by evaporation from remaining on the inner wall of the evaporation box, which is convenient to use.

[0018] The utility model opens a transmission chamber inside the top cover. When evaporation is performed, it only needs to start the servo motor to rotate the first rotating shaft, thereby driving the second stirring blade to stir in the horizontal direction. At this time, the second rotating shaft can drive the first stirring blade to rotate under the meshing transmission of the bevel gear, and the first stirring blade will stir the wastewater in the vertical direction, thereby making the stirring more sufficient and the heating more uniform.

[0019] The utility model provides limit grooves at the upper ends of both sides inside the base, so that when the top cover moves down, the extrusion block can be driven to move down synchronously, and at this time the extrusion block will push the limit block to stretch the heat-resistant rubber sleeve and move it into the heating groove, and the upper part of the evaporator box can be limited by the limit block, so that the evaporator box is more stable when heated, and when the top cover moves up, the limit block can be automatically restored by the reset spring without manual restoration, and the utility model has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of the internal structure of the utility model;

[0021] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is a top view schematic diagram of the base structure of the utility model;

[0023] Figure 4 For the utility model Figure 1 A partial enlarged view of the middle A area;

[0024] Figure 5 For the utility model Figure 1 A partial enlarged view of area B in the middle.

[0025] In the figure: 1, base; 2, top cover; 3, heating tank; 4, evaporator; 5, heating block; 6, transmission chamber; 7, servo motor; 8, first rotating shaft; 9, bevel gear; 10, second rotating shaft; 11, first stirring blade; 12, second stirring blade; 13, limit groove; 14, heat-resistant rubber sleeve; 15, limit block; 16, moving block; 17, reset spring; 18, extrusion block; 19, connecting rod; 20, rectangular groove; 21, rectangular card plate; 22, electric telescopic rod; 23, fan; 24, gas pipe DETAILED DESCRIPTION

[0026] 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 in 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.

[0027] See also Figure 1-5 The utility model provides a technical solution: a high-salt wastewater evaporation crystallization device, comprising a base 1, a heating tank 3 is provided inside the base 1, an evaporation box 4 is provided at the lower end of the heating tank 3, and the evaporation box 4 is fitted with the heating tank 3, and heating blocks 5 are respectively provided on the inner walls of the four sides and the inner wall of the bottom of the heating tank 3;

[0028] It also includes a top cover 2, which is opened just above the base 1, and electric telescopic rods 22 are installed at the four corners inside the base 1, and the output end of the electric telescopic rod 22 is connected to the top cover 2, and a transmission chamber 6 is opened on the lower side inside the top cover 2, and a first rotating shaft 8 is arranged inside the transmission chamber 6, and one end of the first rotating shaft 8 passes through and extends to the outside of the transmission chamber 6, and a group of second rotating shafts 10 are arranged on both sides of the transmission chamber 6, and each group of second rotating shafts 10 are evenly distributed. Three, one end of the second rotating shaft 10 passes through and extends to the outside of the transmission chamber 6, and one end of the second rotating shaft 10 is welded to the end of the second rotating shaft 10 outside the transmission chamber 6. A first stirring blade 11 is welded, and four second stirring blades 12 distributed in an annular shape and at equal distances are welded to the outer wall of the end of the first rotating shaft 8 outside the transmission chamber 6;

[0029] It also includes a limit groove 13, which is opened on both sides of the upper end of the base 1, and a limit block 15 is arranged on the lower side of one side of the limit groove 13. The outer wall of the limit block 15 is welded with a moving block 16. One end of the limit block 15 passes through and extends to the interior of the heating tank 3, and the limit block 15 is slidably matched with the limit groove 13.

[0030] During use, when high-salt wastewater is evaporated, the servo motor 7 is started to rotate the first rotating shaft 8, and the first rotating shaft 8 will drive the second stirring blade 12 to stir horizontally. When the first rotating shaft 8 rotates, the second rotating shaft 10 can be rotated synchronously under the meshing transmission of the bevel gear 9, thereby driving the first stirring blade 11 to stir the wastewater in the vertical direction. The wastewater can be heated more evenly through horizontal and vertical stirring, thereby improving the heating efficiency.

[0031] See also Figure 1 A servo motor 7 is disposed at the upper end of the transmission chamber 6, and the output end of the servo motor 7 is connected to the first rotating shaft 8 through a coupling, and the servo motor 7 provides power for stirring;

[0032] See also Figure 5 , one end of the second rotating shaft 10 located inside the transmission cavity 6 and the outer wall of the first rotating shaft 8 are both provided with bevel gears 9, and three bevel gears 9 located on the outer wall of the first rotating shaft 8 are evenly distributed and arranged, and the bevel gears 9 are meshed and connected with each other. The meshing connection of the bevel gears 9 realizes the synchronous rotation of the second rotating shaft 10 and the first rotating shaft 8, so that the first stirring blade 11 and the second stirring blade 12 rotate synchronously;

[0033] See also Figure 4 , return springs 17 are arranged at the four corners of the inner side of the moving block 16, one end of the return spring 17 is connected to the limit groove 13, and the other end of the return spring 17 is connected to the moving block 16, the elastic restoring effect of the return spring 17 can make the limit block 15 automatically restore its position, which is convenient to use;

[0034] See also Figure 1 and Figure 2 A fan 23 is provided on one side of the upper end of the top cover 2, and an air delivery pipe 24 is provided at one end of the fan 23, and the fan 23 can absorb the steam;

[0035] See also Figure 3 and Figure 4 A rectangular card plate 21 is welded at the lower end of the top cover 2, and a rectangular groove 20 is opened at the upper end of the base 1, and the rectangular groove 20 is adapted to the rectangular card plate 21, and the rectangular card plate 21 is inserted into the interior of the rectangular groove 20 to improve the sealing performance;

[0036] See also Figure 4 , connecting rods 19 are welded on both sides of the lower end of the top cover 2, and extrusion blocks 18 are welded on the lower ends of the connecting rods 19. The extrusion blocks 18 can squeeze the limit blocks 15 so that the limit blocks 15 limit the evaporation box 4;

[0037] See also Figure 3 and Figure 4 One end of the limiting block 15 located inside the heating groove 3 is adhered and fixed with a heat-resistant rubber sleeve 14, and the heat-resistant rubber sleeve 14 is sealed and fixed to the heating groove 3. The heat-resistant rubber sleeve 14 can prevent steam from entering the interior of the limiting groove 13.

[0038] Working principle: when in use, put the evaporation box 4 into the heating tank 3, add the high-salt wastewater into the evaporation box 4, start the electric telescopic rod 22 to move the top cover 2 downward, and the rectangular card plate 21 will be stuck in the rectangular groove 20 to improve the sealing performance. When the top cover 2 moves downward, it will drive the connecting rod 19 to move the extrusion block 18 downward. When the extrusion block 18 moves downward, it will squeeze the limit block 15. The limit block 15 will drive the moving block 16 to squeeze the reset spring 17. One end of the limit block 15 will drive the heat-resistant rubber sleeve 14 to move into the heating tank 3, so that the upper end of the evaporation box 4 can be limited to improve the stability of the evaporation box 4. Start the heating block 5 to heat and evaporate the high-salt wastewater. At this time, start the servo motor 7. Under the transmission of the coupling, the first rotating shaft 8 can be made to rotate. The first rotating shaft 8 will drive the second stirring blade 12 to rotate, so that the wastewater can be stirred horizontally. When the first rotating shaft 8 rotates, it will drive the bevel gear 9 to rotate. The meshing transmission can make the second rotating shaft 10 rotate synchronously, thereby driving the first stirring blade 11 to stir the wastewater in the vertical direction. The wastewater can be heated more evenly through stirring in the horizontal and vertical directions, thereby improving the heating efficiency. The steam can be sucked out through the air pipe 24 by starting the fan 23. When evaporation is completed, the electric telescopic rod 22 can be started to move the top cover 2 upward. The upward movement of the top cover 2 will cause the extrusion block 18 to move upward synchronously, thereby releasing the limit on the limit block 15. The position of the limit block 15 can be restored under the elastic recovery action of the reset spring 17. One end of the limit block 15 will drive the heat-resistant rubber sleeve 14 to move into the interior of the limit groove 13 to avoid affecting the removal of the evaporation box 4. After the top cover 2 moves up, the user can easily remove the evaporation box 4 from the inside of the heating tank 3, so that the crystals can be taken out to clean the evaporation box 4 to avoid the crystals produced by evaporation remaining on the inner wall of the evaporation box 4, which is convenient to use.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-salinity wastewater evaporation and crystallization device, comprising a base (1), a heating tank (3) is provided inside the base (1), an evaporation box (4) is provided at the lower end of the heating tank (3), and the evaporation box (4) is fitted with the heating tank (3), and heating blocks (5) are respectively provided on the inner walls of the four sides and the inner wall of the bottom of the heating tank (3), characterized in that: It also comprises a top cover (2), which is arranged directly above the base (1); electric telescopic rods (22) are installed at the four corners of the base (1); and the output end of the electric telescopic rod (22) is connected to the top cover (2); a transmission chamber (6) is arranged on the lower side of the top cover (2); a first rotating shaft (8) is arranged inside the transmission chamber (6); one end of the first rotating shaft (8) passes through and extends to the outside of the transmission chamber (6); a group of second rotating shafts (10) are arranged on both sides of the transmission chamber (6); and each group of second rotating shafts (10) has three second rotating shafts (10) arranged at equal intervals; one end of the second rotating shafts (10) passes through and extends to the outside of the transmission chamber (6); one end of the second rotating shaft (10) located outside the transmission chamber (6) is welded with a first stirring blade (11); and the outer wall of one end of the first rotating shaft (8) located outside the transmission chamber (6) is welded with four second stirring blades (12) arranged at equal intervals in a ring shape; It also includes a limit groove (13) which is opened on both sides of the upper end of the base (1), a limit block (15) is arranged on the lower side of one side of the limit groove (13), a moving block (16) is welded to the outer wall of the limit block (15), one end of the limit block (15) passes through and extends into the interior of the heating groove (3), and the limit block (15) is slidably matched with the limit groove (13).

2. The high-salt wastewater evaporation and crystallization device according to claim 1, characterized in that: A servo motor (7) is provided at the upper end of the transmission chamber (6), and the output end of the servo motor (7) is connected to the first rotating shaft (8) via a coupling.

3. The high-salt wastewater evaporation and crystallization device according to claim 1 is characterized in that: Conical gears (9) are provided on one end of the second rotating shaft (10) located inside the transmission cavity (6) and on the outer wall of the first rotating shaft (8), and three conical gears (9) are provided on the outer wall of the first rotating shaft (8) at equal intervals, and the conical gears (9) are meshingly connected with each other.

4. The high-salt wastewater evaporation and crystallization device according to claim 1, characterized in that: Return springs (17) are provided at the four corners of the inner side of the moving block (16), one end of the return spring (17) is connected to the limiting groove (13), and the other end of the return spring (17) is connected to the moving block (16).

5. The high-salt wastewater evaporation and crystallization device according to claim 1, characterized in that: A fan (23) is provided on one side of the upper end of the top cover (2), and an air supply pipe (24) is provided on one end of the fan (23).

6. The high-salt wastewater evaporation and crystallization device according to claim 1, characterized in that: A rectangular clamping plate (21) is welded to the lower end of the top cover (2), a rectangular groove (20) is provided at the upper end of the base (1), and the rectangular groove (20) is matched with the rectangular clamping plate (21).

7. The high-salt wastewater evaporation and crystallization device according to claim 1 is characterized in that: Connecting rods (19) are welded to both sides of the lower end of the top cover (2), and extrusion blocks (18) are welded to the lower ends of the connecting rods (19).

8. The high-salt wastewater evaporation and crystallization device according to claim 1 is characterized in that: One end of the limit block (15) located inside the heating groove (3) is adhesively fixed with a heat-resistant rubber sleeve (14), and the heat-resistant rubber sleeve (14) is sealed and fixed to the heating groove (3).

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