High-salinity wastewater evaporation crystallization device

Abstract

The utility model relates to high salt wastewater treatment technical field, concretely relates to a kind of high salt wastewater evaporation crystallization device, including reaction kettle, and the upper side of reaction kettle inside is provided with condensing mechanism, further include evaporation mechanism, and evaporation mechanism is located reaction kettle inside downside, and evaporation mechanism includes the stirring structure for the stirring when high salt wastewater heating, the heating structure for the heating to high salt wastewater, and the bottom side of stirring shaft is equipped with the broken structure for the crystallization crushing of reaction kettle inside bottom end agglomeration. Advantageous effect: by the heating and stirring of waste water of stirring structure and heating structure, ensure that crystallization is fully extruded outward, while under the continuous stirring to waste water, reduce the phenomenon that crystallization that extrudes appears agglomeration and adhesion, ensure that waste water is heated evenly, again utilize broken structure to the crushing of large block crystallization that extrudes, reduce the phenomenon that crystallization appears blockage when discharging, beneficial to crystallization extruding outward.

Description

Technical Field

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

[0002] Evaporation of high-salinity wastewater is a method for treating high-salinity wastewater. Its main purpose is to remove water from the wastewater through evaporation, thereby concentrating the salt and potentially allowing for further treatment or resource utilization. High-salinity wastewater usually comes from industrial production processes such as chemical, pharmaceutical, printing and dyeing, and oil refining. It contains high concentrations of salts, such as Cl-, SO42-, Na+, and Ca2+. Direct discharge of this wastewater would have a serious impact on the environment, so effective treatment is necessary.

[0003] By comparing a high-salt wastewater treatment evaporation crystallization device with patent publication number CN223213861U, in this scheme, after high-salt wastewater flows into the vessel, the electric heater is turned on and the generated heat energy is conducted through the quartz electric heating component to enter the electric heating plate and heat and evaporate the high-salt wastewater liquid on its surface. However, when the high-salt wastewater is heated at high temperature, it cannot be stirred, which may cause the crystals precipitated in the wastewater to clump or stick together, and blockage may occur when the crystals are discharged, which is not conducive to the discharge of the crystals. Utility Model Content

[0004] The purpose of this invention is to provide a high-salt wastewater evaporation and crystallization device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A high-salt wastewater evaporation and crystallization device includes a reaction vessel, a condensation mechanism is provided on the upper side inside the reaction vessel, and an evaporation mechanism for heating and evaporating the high-salt wastewater is located on the lower side inside the reaction vessel.

[0007] The evaporation mechanism includes a stirring structure for stirring when heating high-salinity wastewater and a heating structure for heating high-salinity wastewater;

[0008] The stirring structure includes a stirring shaft located at the bottom of the reactor interior. A rotary motor is installed at the rotating end of the stirring shaft, and the output end of the rotary motor is fixed to the rotating end of the stirring shaft via a coupling. Two stirring blades are fixed on the side wall of the stirring shaft. A block is installed at the bottom of the reactor interior and is threadedly connected to the reactor interior. A crushing structure is provided on the bottom side of the stirring shaft for breaking up crystallized agglomerates at the bottom of the reactor interior.

[0009] Preferably, the crushing structure includes a rotating sleeve fixedly installed at the bottom end of the stirring shaft, a groove is provided on the side wall of the rotating sleeve, a rotating shaft is rotatably installed in the groove, a fixed plate is fixed at one end of the rotating shaft near the groove, a torsion spring is connected between the fixed plate and the groove, a rotating plate is slidably installed on the side wall of the rotating shaft, a limit spring is connected between the rotating shaft and the rotating plate, multiple scrapers are fixed at the bottom end of the rotating plate, and a vibration structure for driving the rotating plate to vibrate is provided between the rotating plate and the reaction vessel.

[0010] Preferably, the vibration structure includes a stop block fixedly installed at one end of the rotating plate near the inner wall of the reactor. Multiple protrusions are installed around the inner wall of the reactor near the stop block. The protrusions are fixedly connected to the reactor. The protrusions and the stop block are both inclined surfaces at their respective ends and slide against each other.

[0011] Preferably, the heating structure includes a heating chamber disposed on the side wall of the reactor, and a heating tube is provided inside the heating chamber.

[0012] Preferably, the condensation mechanism includes a flow guide shroud located at the top of the inside of the reactor. The flow guide shroud is a cone with the larger end facing down. A water tank is located on the inner wall of the reactor near the bottom of the flow guide shroud. The water tank is annular. A top frame is installed at the top of the reactor. The top frame is annular. Multiple blowers are installed around the inside of the top frame. Cooling pipes are located below the blowers. Multiple air outlets are opened at the bottom of the top frame.

[0013] Preferably, a connecting frame is fixed at one end of the stirring blade near the inner wall of the reactor, a side scraper is rotatably installed at one end of the connecting frame near the inner wall of the reactor, a torsion spring is connected between the rotating end of the side scraper and the connecting frame, and a bottom scraper is fixed at the bottom end of the stirring shaft.

[0014] Preferably, both the side scraper and the bottom scraper are made of rubber.

[0015] Compared with existing technologies, the beneficial effects are as follows:

[0016] The wastewater is thoroughly heated and stirred by the stirring and heating structures, ensuring that crystals are fully precipitated outwards. At the same time, the continuous stirring of the wastewater reduces the occurrence of crystal clumping and adhesion, ensuring that the wastewater is heated evenly. Furthermore, the crushing structure breaks up the large crystals that precipitate outwards, reducing the possibility of blockage during discharge and facilitating the discharge of crystals. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a spatial perspective view of the high-salt wastewater evaporation and crystallization device described in this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the reactor in the high-salt wastewater evaporation and crystallization device described in this utility model;

[0020] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the structure between the stirring blades and the interior of the reaction vessel in the high-salt wastewater evaporation and crystallization device described in this utility model;

[0022] Figure 5 This is a cross-sectional view of the internal structure of the top frame of the high-salt wastewater evaporation and crystallization device described in this utility model;

[0023] Figure 6 This is a cross-sectional view of the structure between the rotating plate and the interior of the reaction vessel in the high-salt wastewater evaporation and crystallization device described in this utility model;

[0024] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle.

[0025] The annotations in the attached figures are explained as follows:

[0026] 100. Reactor; 201. Stirring shaft; 202. Rotary motor; 203. Stirring blade; 204. Connecting frame; 205. Side scraper; 206. Bottom scraper; 207. Block; 208. Heating chamber; 209. Heating tube; 210. Rotating plate; 211. Rotating sleeve; 212. Rotating shaft; 213. Scraper; 214. Stop block; 215. Protrusion; 216. Fixing plate; 217. Slide groove; 301. Flow guide; 302. Water tank; 303. Top frame; 304. Fan; 305. Cooling tube. Detailed Implementation

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal connection of two components. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known control device such as a computer. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figures 1-7 As shown, a high-salt wastewater evaporation and crystallization device includes a reaction vessel 100, a condensation mechanism for condensing the water vapor after evaporation of high-salt wastewater, the condensation mechanism being located on the upper side inside the reaction vessel 100, and an evaporation mechanism for heating and evaporating the high-salt wastewater, the evaporation mechanism being located on the lower side inside the reaction vessel 100.

[0030] In this embodiment, the evaporation mechanism includes a stirring structure for stirring when heating high-salt wastewater and a heating structure for heating high-salt wastewater.

[0031] The stirring structure includes a stirring shaft 201 located at the bottom of the reactor 100. A rotary motor 202 is installed at the rotating end of the stirring shaft 201. The output end of the rotary motor 202 is fixed to the rotating end of the stirring shaft 201 via a coupling. Two stirring blades 203 are fixed on the side wall of the stirring shaft 201. A connecting frame 204 is fixed at one end of the stirring blade 203 near the inner wall of the reactor 100. A side scraper 205 is rotatably installed at one end of the connecting frame 204 near the inner wall of the reactor 100. A torsion spring is connected between the rotating end of the side scraper 205 and the connecting frame 204. A bottom scraper 206 is fixed at the bottom of the stirring shaft 201. Both the side scraper 205 and the bottom scraper 206 are made of rubber. A block 207 is installed at the bottom of the reactor 100 and is threadedly connected to the reactor 100. A crushing structure is provided on the bottom side of the stirring shaft 201 for breaking up crystallized agglomerates at the bottom of the reactor 100.

[0032] The crushing structure includes a rotating sleeve 211 fixedly installed at the bottom of the stirring shaft 201. A groove 217 is provided on the side wall of the rotating sleeve 211. A rotating shaft 212 is rotatably installed in the groove 217. A fixing plate 216 is fixed at one end of the rotating shaft 212 near the groove 217. A torsion spring is connected between the fixing plate 216 and the groove 217. A rotating plate 210 is slidably installed on the side wall of the rotating shaft 212. A limit spring is connected between the rotating shaft 212 and the rotating plate 210. Multiple scrapers 213 are fixed at the bottom of the rotating plate 210. A vibration structure for driving the rotating plate 210 to vibrate is provided between the rotating plate 210 and the reaction vessel 100.

[0033] The vibration structure includes a stop block 214 fixedly mounted on the rotating plate 210 near the inner wall of the reactor 100. Multiple protrusions 215 are mounted around the inner wall of the reactor 100 near the stop block 214. The protrusions 215 are fixedly connected to the reactor 100. Both the protrusions 215 and the stop block 214 have inclined surfaces at their closest points and slide against each other. When the rotating plate 210 rotates, it drives the stop block 214 to rotate. The stop block 214 then presses and collides with the multiple protrusions 215 on the inner wall of the reactor 100. The protrusions 215 press against the stop block 214, causing the stop block 214 to drive the rotating plate 210. While rotating, the plate 210 moves towards the rotating sleeve 211. The lateral movement and swaying of the rotating plate 210 can expand the crushing range of the crystal block and increase the crushing capacity of the crystal block. Under the continuous impact of multiple protrusions 215 and stop blocks 214, vibration is generated between the rotating plate 210 and multiple scrapers 213, which helps to shake the crystals remaining on the surface of the scrapers 213 downwards, ensuring the cleanliness of the scraper 213 surface and facilitating the next use. Under the crushing of the crystals by the scrapers 213, the phenomenon of crystal clumping and adhesion is reduced, making it easier to crush large crystals and facilitate the outward discharge of crystals.

[0034] The heating structure includes a heating chamber 208 disposed on the side wall of the reactor 100, and a heating tube 209 is provided inside the heating chamber 208.

[0035] In this embodiment: the condensation mechanism includes a flow guide 301 disposed at the top of the inside of the reactor 100. The flow guide 301 is a cone with the large end facing down. A water tank 302 is disposed on the inner wall of the reactor 100 near the bottom of the flow guide 301. The water tank 302 is annular. A top frame 303 is installed at the top of the reactor 100. The top frame 303 is annular. Multiple blowers 304 are installed around the inside of the top frame 303. Cooling pipes 305 are disposed on the lower side of the blowers 304. Multiple air outlets are opened at the bottom of the top frame 303.

[0036] Working principle: First, high-salt wastewater is poured into the reactor 100. Then, the heating tube 209 inside the heating chamber 208 is activated to heat the waste liquid inside the reactor 100. At the same time, the cooling tube 305 inside the top frame 303 is activated to cool the inside of the top frame 303. Then, multiple blowers 304 are used to blow cold air between the guide shroud 301 and the reactor 100 to cool the surface of the guide shroud 301.

[0037] The rotary motor 202 is started to drive the stirring shaft 201 to rotate, which in turn drives multiple stirring blades 203 to rotate and fully stir the wastewater, making the wastewater heat more evenly. The water vapor generated after the wastewater is heated flows upward. When the water vapor comes into contact with the upper guide shroud 301, it is condensed by the guide shroud 301, causing the water vapor to form droplets. Then, it flows downward along the inner wall of the guide shroud 301 and finally flows into the water tank 302 to collect the droplets.

[0038] During the rotation of the stirring shaft 201, the rotating sleeve 211 rotates, which in turn drives the rotating plate 210 to rotate. Multiple scrapers 213 at the bottom of the rotating plate 210 break up the crystals precipitated at the bottom of the reactor 100. Simultaneously, as the rotating plate 210 rotates, it drives the baffle 214 to rotate. The baffle 214 then presses against and collides with multiple protrusions 215 on the inner wall of the reactor 100. The protrusions 215 press against the baffle 214, causing it to move towards the rotating sleeve 211 while simultaneously driving the rotating plate 210 to rotate. The lateral movement and swaying of the rotating plate 210 can expand the crushing range of the crystal block and increase the crushing capacity of the crystal block. Under the continuous impact of multiple protrusions 215 and stop blocks 214, vibration is generated between the rotating plate 210 and multiple scrapers 213, which helps to shake the crystals remaining on the surface of the scraper 213 downward, ensuring the cleanliness of the scraper 213 surface and facilitating the next use. Under the crushing of the crystals by the scraper 213, the phenomenon of crystal agglomeration and adhesion is reduced, making it easier to crush large crystals and facilitate the outward discharge of crystals.

[0039] Finally, after the wastewater has evaporated, the precipitated crystals remain at the bottom of the reactor 100. Meanwhile, the crystals on the inner wall of the reactor 100 are scraped off by the rotation of the side scraper 205. Then, the plug 207 is opened, and the stirring shaft 201 drives the bottom scraper 206 to rotate. The bottom scraper 206 scrapes the crystals at the bottom of the reactor 100 outwards for collection, thus completing the evaporation of the high-salt wastewater.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-salt wastewater evaporation and crystallization apparatus, comprising a reaction vessel (100), wherein a condensation mechanism is provided on the upper side inside the reaction vessel (100), characterized in that: It also includes an evaporation mechanism for heating and evaporating high-salt wastewater, the evaporation mechanism being located inside the lower side of the reactor (100); The evaporation mechanism includes a stirring structure for stirring when heating high-salt wastewater and a heating structure for heating high-salt wastewater. The stirring structure includes a stirring shaft (201) disposed at the bottom of the reactor (100). A rotary motor (202) is installed at the rotating end of the stirring shaft (201). The output end of the rotary motor (202) is fixed to the rotating end of the stirring shaft (201) via a coupling. Two stirring blades (203) are fixed on the side wall of the stirring shaft (201). A block (207) is installed at the bottom of the reactor (100). The block (207) is threadedly connected to the reactor (100). A crushing structure is provided on the bottom side of the stirring shaft (201) for crushing the crystals that have formed at the bottom of the reactor (100).

2. The high-salt wastewater evaporation and crystallization apparatus according to claim 1, characterized in that: The crushing structure includes a rotating sleeve (211) fixedly installed at the bottom end of the stirring shaft (201). A groove (217) is provided on the side wall of the rotating sleeve (211). A rotating shaft (212) is rotatably installed in the groove (217). A fixing plate (216) is fixed at one end of the rotating shaft (212) near the groove (217). A torsion spring is connected between the fixing plate (216) and the groove (217). A rotating plate (210) is slidably installed on the side wall of the rotating shaft (212). A limit spring is connected between the rotating shaft (212) and the rotating plate (210). A plurality of scrapers (213) are fixed at the bottom end of the rotating plate (210). A vibration structure for driving the rotating plate (210) to vibrate is provided between the rotating plate (210) and the reaction vessel (100).

3. The high-salt wastewater evaporation and crystallization device according to claim 2, characterized in that: The vibration structure includes a stop block (214) fixedly disposed on the rotating plate (210) near one end of the inner wall of the reactor (100). A plurality of protrusions (215) are mounted around the inner wall of the reactor (100) near the stop block (214). The protrusions (215) are fixedly connected to the reactor (100). The protrusions (215) and the stop block (214) are both inclined at one end and slide in cooperation with each other.

4. The high-salt wastewater evaporation and crystallization apparatus according to claim 3, characterized in that: The heating structure includes a heating chamber (208) disposed on the side wall of the reactor (100), and a heating tube (209) is provided inside the heating chamber (208).

5. The high-salt wastewater evaporation and crystallization apparatus according to claim 4, characterized in that: The condensation mechanism includes a flow guide shroud (301) located at the top of the inside of the reactor (100). The flow guide shroud (301) is a cone with its large end facing down. A water tank (302) is provided on the inner wall of the reactor (100) near the bottom of the flow guide shroud (301). The water tank (302) is annular. A top frame (303) is installed at the top of the reactor (100). The top frame (303) is annular. Multiple blowers (304) are installed around the inside of the top frame (303). Cooling pipes (305) are provided on the lower side of the blowers (304). Multiple air outlets are opened at the bottom of the top frame (303).

6. The high-salt wastewater evaporation and crystallization apparatus according to claim 5, characterized in that: The stirring blade (203) is fixed with a connecting frame (204) at one end near the inner wall of the reactor (100). A side scraper (205) is rotatably mounted on the connecting frame (204) at one end near the inner wall of the reactor (100). A torsion spring is connected between the rotating end of the side scraper (205) and the connecting frame (204). A bottom scraper (206) is fixed at the bottom end of the stirring shaft (201).

7. The high-salt wastewater evaporation and crystallization apparatus according to claim 6, characterized in that: Both the side scraper (205) and the bottom scraper (206) are made of rubber.

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