Low-temperature evaporative wastewater treatment device

Abstract

The utility model discloses a low-temperature evaporation type wastewater treatment device, which comprises a box body, a water storage tank and a distillation still, the water storage tank is arranged on one side of the box body, a filter box is arranged in the water storage tank, a filter screen is arranged in the filter box, sliding blocks are arranged on the side walls of the front end and the rear end of the filter box, and the distillation still is arranged in the filter box. A sliding groove is formed in the contact position of the inner wall of the water storage tank and the sliding block, a distillation still is arranged in the box body, a stirrer is arranged in the distillation still, and a spiral auger is arranged at the bottom of the distillation still. Through the arrangement of the filter tank, the filter tank is arranged in the water storage tank, and before wastewater enters the water storage tank, the filter tank can effectively remove impurities such as suspended solids and particulate matters in the wastewater entering the water storage tank, so that the influence of the impurities on the subsequent treatment process is reduced; the water quality purity is higher, the distillation process is facilitated, and meanwhile, the cleanliness of the water quality after distillation can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a low-temperature evaporation type wastewater treatment device. Background Art

[0002] Low-temperature evaporation wastewater treatment devices use low-temperature evaporation technology to heat and evaporate wastewater at lower temperatures. The heating system inside the device heats the wastewater to a certain temperature, allowing the water in the wastewater to escape in the form of steam, thereby achieving the concentration and purification of the wastewater. Low-temperature evaporation technology usually operates at a lower temperature and can significantly reduce energy consumption compared to traditional high-temperature evaporation methods.

[0003] When evaporating wastewater, most existing wastewater treatment devices directly inject the wastewater into the evaporation system. However, the wastewater contains impurities such as suspended matter and particulate matter. After the unfiltered wastewater is directly evaporated, the resulting distilled water may contain trace amounts of organic matter, heavy metals and other harmful substances. These harmful substances may enter the condensation system along with the water vapor, causing the water quality of the condensed water to be contaminated, affecting the stability and reliability of the water quality of the outlet.

[0004] For example, a low-temperature evaporation device for flue gas desulfurization wastewater is disclosed with announcement number CN216073123U. In this patent, the wastewater is directly transported to the inner cavity of the box body through the water inlet for heating and evaporation. The unfiltered wastewater is directly evaporated, which not only easily forms scale and adheres to the heating tube, affecting the heat transfer efficiency and evaporation effect of the equipment, but also impurities may enter the condenser with the steam, causing the condensed water quality to be contaminated. The water quality of the effluent after final evaporation may be difficult to meet the expected standards, affecting the compliance of subsequent use or discharge.

[0005] Therefore, it is necessary to invent a low-temperature evaporation wastewater treatment device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a low-temperature evaporation type wastewater treatment device to solve the problem in the technology that wastewater has no impurity filtering function before entering the evaporation system.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature evaporative wastewater treatment device, comprising a box body, a water storage tank and a distillation kettle, a water storage tank is provided on one side of the box body, a filter box is provided inside the water storage tank, a filter screen is provided inside the filter box, sliders are provided on the front and rear side walls of the filter box, a slide groove is provided at the contact position between the inner wall of the water storage tank and the slider, a distillation kettle is provided inside the box body, an agitator is provided inside the distillation kettle, and a spiral auger is provided at the bottom of the distillation kettle.

[0008] Preferably, the outer wall of the filter box is in contact with the inner wall of the water storage tank, the filter holes at the bottom of the filter box are smaller than the filter holes of the filter mesh, and a pouring port is provided on one side wall of the filter box. The filter box can perform preliminary filtration on the wastewater entering the water storage tank, and the pouring port facilitates the cleaning of filtered impurities.

[0009] Preferably, a water pump is provided between the box body and the water storage tank, the water inlet end of the water pump is connected to the water outlet end of the water storage tank through a water pipe, and the water outlet end of the water pump is connected to the water inlet end of the distillation kettle through a water pipe. The wastewater in the water storage tank can be pumped to the distillation kettle through the water pump and the water pipe, thereby realizing automatic transportation of wastewater.

[0010] Preferably, heating components are provided on the inner walls of the front and rear ends of the distillation kettle, and there are two heating components. The two heating components are symmetrical with each other about the center of the distillation kettle. The two heating components can ensure that the liquid in the distillation kettle is heated evenly, thereby improving the evaporation efficiency.

[0011] Preferably, a vacuum pump is provided on the top of the distillation kettle, and the air inlet of the vacuum pump is connected to the exhaust port of the distillation kettle through a connecting pipe. The vacuum pump is used to extract the steam and non-condensable gas generated in the kettle during the distillation process, reduce the pressure in the kettle, thereby reducing the boiling point of the wastewater and promoting evaporation.

[0012] Preferably, one end of the agitator is rotatably connected to the inner wall of the distillation kettle, and the other end of the agitator is connected to the output end of the drive motor outside the box. The agitator can stir the wastewater in the distillation kettle to prevent local overheating or scaling of the wastewater during the heating process, thereby ensuring the smooth progress of the evaporation process.

[0013] Preferably, one end of the spiral auger is rotatably connected to the inner wall of the distillation kettle, and the other end of the spiral auger is connected to the output end of the rotating motor outside the box. The discharge port of the spiral auger is obliquely provided with a discharge pipe that passes through the box and extends to the outside. The spiral auger is designed to discharge the concentrated liquid or solid residue at the bottom of the distillation kettle after the evaporation is completed.

[0014] Preferably, a condenser is provided at the top of the distillation kettle, the air inlet of the condenser and the air outlet of the distillation kettle are connected with a steam pipe, the air outlet of the condenser is connected with a water outlet pipe, and the condenser is used to condense the steam generated by evaporation into water, thereby realizing the recycling of waste water.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. By setting up a filter box inside the water tank, the filter box can effectively remove impurities such as suspended matter and particulate matter in the wastewater before it enters the water tank, reducing the impact of these impurities on subsequent treatment processes. When the filtered wastewater enters the distillation kettle, its water quality is higher, which is conducive to the distillation process and can also ensure the cleanliness of the water quality after distillation;

[0017] 2. Through the setting of the slider and the chute, the filter box and the water tank form a sliding connection through the slider and the chute. The sliding connection method allows the filter box to be easily removed from the water tank without the need for a complicated disassembly process, which greatly simplifies the cleaning, maintenance and replacement of the filter box and improves the maintenance efficiency of the equipment;

[0018] 3. By setting up a spiral auger at the bottom of the distillation kettle, the automatic transportation and discharge of the sediment at the bottom of the distillation kettle is realized. Through the rotation of the spiral auger, the sediment is effectively rolled up and transported to the designated position for discharge, which not only realizes the automatic slag discharge, but also reduces the downtime caused by cleaning the sediment, and improves the operation efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the filter box of the present utility model;

[0021] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the slider and the chute of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the box body of the present invention;

[0023] Figure 5 This is a schematic diagram of the top view of the distillation kettle of the present invention;

[0024] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the distillation kettle of the present invention.

[0025] Description of reference numerals:

[0026] 1. Box body; 2. Water storage tank; 3. Filter box; 4. Filter screen; 5. Discharge port; 6. Slider; 7. Chute; 8. Water pump; 9. Distillation kettle; 10. Heating component; 11. Vacuum pump; 12. Agitator; 13. Drive motor; 14. Auger; 15. Rotary motor; 16. Discharge pipe; 17. Condenser; 18. Steam pipe; 19. Water outlet pipe. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The utility model provides Figure 1-5 The low-temperature evaporation wastewater treatment device shown in the figure includes a box body 1, a water storage tank 2 and a distillation kettle 9. A water storage tank 2 is provided on one side of the box body 1, a filter box 3 is provided inside the water storage tank 2, a filter screen 4 is provided inside the filter box 3, the outer wall of the filter box 3 is in contact with the inner wall of the water storage tank 2, the filter holes at the bottom of the filter box 3 are smaller than the filter holes of the filter screen 4, a pouring port 5 is provided on one side wall of the filter box 3, sliders 6 are provided on the front and rear end side walls of the filter box 3, a slide groove 7 is provided at the contact position between the inner wall of the water storage tank 2 and the slider 6, a water pump 8 is provided between the box body 1 and the water storage tank 2, the water inlet end of the water pump 8 is connected to the water outlet end of the water storage tank 2 through a water pipe, the water outlet end of the water pump 8 is connected to the water inlet end of the distillation kettle 9 through a water pipe, a distillation kettle 9 is provided inside the box body 1, an agitator 12 is provided inside the distillation kettle 9, and a spiral auger 14 is provided at the bottom of the distillation kettle 9.

[0029] The filter box 3 provided can perform preliminary filtration on the wastewater entering the water storage tank 2, and the filter holes and filter screen 4 at the bottom of the filter box 3 can form a multi-stage filtration effect, thereby improving the filtration accuracy and removing large particles of impurities in the wastewater. The filtered wastewater is automatically transported from the water storage tank 2 to the distillation kettle 9 through the water pump 8. This design not only improves the efficiency of wastewater treatment, but also reduces the tediousness of manual operation, making the entire wastewater treatment process more automated and continuous.

[0030] Heating components 10 are provided on the inner walls of the front and rear ends of the distillation kettle 9. There are two heating components 10, and the two heating components 10 are symmetrical with each other about the center of the distillation kettle 9. A vacuum pump 11 is provided on the top of the distillation kettle 9, and the air inlet of the vacuum pump 11 is connected to the exhaust port of the distillation kettle 9 through a connecting pipe.

[0031] The heating component 10 is used to heat the wastewater in the distillation kettle 9 to promote the evaporation of the wastewater. The vacuum pump 11 can extract the steam and non-condensable gas generated in the distillation kettle 9 during the distillation process, reduce the pressure in the distillation kettle 9, thereby reducing the boiling point of the wastewater, further promoting the evaporation process, improving the evaporation efficiency and saving energy.

[0032] One end of the agitator 12 is rotatably connected to the inner wall of the distillation kettle 9, and the other end of the agitator 12 is connected to the output end of the drive motor 13 outside the box body 1. One end of the spiral auger 14 is rotatably connected to the inner wall of the distillation kettle 9, and the other end of the spiral auger 14 is connected to the output end of the rotating motor 15 outside the box body 1. The discharge port of the spiral auger 14 is obliquely provided with a discharge pipe 16 and extends through the box body 1 to its outside. A condenser 17 is provided at the top of the distillation kettle 9, and the air inlet of the condenser 17 and the air outlet of the distillation kettle 9 are connected to a steam pipe 18, and the air outlet of the condenser 17 is connected to a water outlet pipe 19.

[0033] The agitator 12 is driven by the drive motor 13 to stir the wastewater in the distillation kettle 9 to prevent local overheating or scaling of the wastewater during the heating process, thereby ensuring the smooth progress of the evaporation process. The spiral auger 14 is set to discharge the concentrated liquid or solid residue at the bottom of the distillation kettle 9 after the evaporation is completed. Driven by the rotating motor 15, the spiral auger 14 can automatically transport the bottom material to the discharge pipe 16 to realize automatic discharge, reduce manual operation, and improve work efficiency. The condenser 17 is set to condense the steam generated by evaporation in the distillation kettle 9 into water, and the condensed water is discharged or recycled through the outlet pipe 19.

[0034] Working principle of this utility model:

[0035] Refer to the instruction manual Figure 1-3 When using the present invention, first pour the waste water into the water storage tank 2, and the waste water passes through the filter box 3 for preliminary filtration. The particulate impurities in the waste water may be left inside the filter box 3. When it is necessary to clean the impurities inside the filter box, the filter box 3 can be directly lifted up, and the filter box 3 can be slid out and disassembled by sliding the slider 6 in the chute 7 on the inner wall of the water storage tank 2, so that the impurities inside the filter box 3 can be poured out from the pouring port 5. The scale line on the front side wall of the filter box 3 can intuitively show the amount of waste water inside the water storage tank 3, which is convenient for the operator to monitor the water level changes during the waste water treatment process.

[0036] Refer to the instruction manual Figure 4-5 When using the utility model, the water pump 8 is then started to transport the pretreated wastewater from the water storage tank 2 to the distillation kettle 9, and the heating component 10 is then started to heat the wastewater in the distillation kettle 9. At the same time, the vacuum pump 11 is started to reduce the pressure in the kettle to promote the evaporation process, and the drive motor 13 is started to stir the wastewater in the distillation kettle 9 through the agitator 12 to prevent local overheating or scaling. After the evaporation is completed, the rotating motor 15 is started to discharge the concentrated liquid or solid residue at the bottom of the distillation kettle 9 to the outside of the discharge pipe 16 through the spiral auger 14. The steam generated by evaporation enters the condenser 17 for condensation, and the condensed water is discharged through the outlet pipe 19 or recycled.

Claims

1. A low-temperature evaporative wastewater treatment device, comprising a housing (1), a water storage tank (2) and a distillation kettle (9), characterized in that: A water storage tank (2) is provided on one side of the box body (1), a filter box (3) is provided inside the water storage tank (2), a filter screen (4) is provided inside the filter box (3), sliders (6) are provided on the front and rear side walls of the filter box (3), a chute (7) is provided at the contact position between the inner wall of the water storage tank (2) and the slider (6), a distillation kettle (9) is provided inside the box body (1), a stirrer (12) is provided inside the distillation kettle (9), and a spiral auger (14) is provided at the bottom of the distillation kettle (9).

2. A low-temperature evaporation wastewater treatment device according to claim 1, characterized in that: The outer wall of the filter box (3) contacts the inner wall of the water storage tank (2); the filter holes at the bottom of the filter box (3) are smaller than the filter holes of the filter screen (4); and a pouring port (5) is provided on one side wall of the filter box (3).

3. The low-temperature evaporation wastewater treatment device according to claim 1, characterized in that: A water pump (8) is provided between the box body (1) and the water storage tank (2); the water inlet end of the water pump (8) is connected to the water outlet end of the water storage tank (2) via a water pipe; and the water outlet end of the water pump (8) is connected to the water inlet end of the distillation kettle (9) via a water pipe.

4. The low-temperature evaporation wastewater treatment device according to claim 3, characterized in that: The inner walls of the front and rear ends of the distillation kettle (9) are provided with heating components (10), and two heating components (10) are provided, and the two heating components (10) are centrally symmetrical with respect to the distillation kettle (9).

5. The low-temperature evaporation wastewater treatment device according to claim 4, characterized in that: A vacuum pump (11) is provided on the top of the distillation kettle (9), and the air inlet of the vacuum pump (11) is connected to the exhaust port of the distillation kettle (9) through a connecting pipe.

6. The low-temperature evaporation wastewater treatment device according to claim 1, characterized in that: One end of the stirrer (12) is rotatably connected to the inner wall of the distillation kettle (9), and the other end of the stirrer (12) is connected to the output end of the driving motor (13) outside the box (1).

7. The low-temperature evaporation wastewater treatment device according to claim 1, characterized in that: One end of the spiral auger (14) is rotatably connected to the inner wall of the distillation kettle (9), and the other end of the spiral auger (14) is connected to the output end of the rotating motor (15) outside the box (1). The discharge port of the spiral auger (14) is obliquely provided with a discharge pipe (16) that passes through the box (1) and extends to the outside thereof.

8. The low-temperature evaporation wastewater treatment device according to claim 7, characterized in that: A condenser (17) is provided at the top of the distillation kettle (9), an air inlet of the condenser (17) and an air outlet of the distillation kettle (9) are connected to a steam pipe (18), and an air outlet of the condenser (17) is connected to a water outlet pipe (19).

Images