Waste water and ash co-processing device

Abstract

The utility model discloses a wastewater waste ash collaborative processing device relates to high salt wastewater and head ash collaborative processing technical field, wherein, wastewater waste ash collaborative processing device includes mixing tank, stirring mechanism, liquid supply pipe, feeder and detection component. The mixing tank upper end has the apron. The stirring mechanism is at least partly arranged in the mixing tank to carry out the stirring mixture to the head ash and high salt wastewater in the mixing tank. Liquid supply pipe is used to supply high salt wastewater to the mixing tank. Feeder is used to supply head ash to the mixing tank. Detection component is used to detect the reaction state of high salt wastewater and head ash in the mixing tank. Through liquid supply pipe and feeder can make high salt wastewater and head ash with the suitable proportion send into the mixing tank, through the control stirring mechanism, can mix high salt wastewater and head ash and stir, accelerate the reaction rate of high salt wastewater and head ash, the compact structure is more on the whole, and the processing area is more concentrated, reduces the floor area, and the problem of large floor area is improved.

Description

Technical Field

[0001] This utility model relates to the field of co-treatment technology of salt wastewater and machine head ash, and in particular to a wastewater and waste ash co-treatment device. Background Technology

[0002] The co-treatment technology of high-salinity wastewater and blast furnace dust is widely used in industries such as steel, cement, and power plants. In the co-treatment of high-salinity solid waste ash (such as sintering electrostatic precipitator ash) and acidic wastewater from steel plants, several methods are commonly employed. One method involves staged immersion washing, micro-electrolytic oxidation, and countercurrent evaporation to achieve the combined removal and resource recovery of pollutants such as potassium chloride and thallium. This method boasts advantages such as relatively simple process conditions, low energy consumption, and no wastewater discharge. The process mainly relies on water washing and multi-step chemical processes. Another method involves mixing the washed sintered ash with blast furnace baghouse ash to form pellets and heat-treat it. The high-salinity solid waste is then utilized through a combination of processes including flue gas cooling, staged water washing, and evaporation for salt separation. This method reduces wastewater volume and enhances resource utilization. However, this approach is complex, involving multiple modules (pelletizing, heat treatment, flue gas treatment, sedimentation, and evaporation). The processes described above typically involve multiple stages such as water washing, heat treatment / leaching, evaporation / crystallization. These processes are complex, the equipment is relatively scattered, the equipment zoning is complex, making it difficult to integrate them into a single unit, and the layout requires a large floor space. Utility Model Content

[0003] The main purpose of this invention is to propose a wastewater and waste ash co-treatment device, which aims to improve the problem of large footprint.

[0004] To achieve the above objectives, the wastewater and waste ash co-treatment device proposed in this utility model includes: A mixing tank with a cover plate at the top, the cover plate having a first feed port and a second feed port; A stirring mechanism is at least partially located inside the mixing tank to stir and mix the machine head ash and high-salt wastewater inside the mixing tank; A liquid supply pipe, the outlet of which is connected to the first feed port, is used to supply high-salt wastewater to the mixing tank; A feeder, the discharge port of which is connected to the second feed port, is used to supply head ash to the mixing tank; and... A detection component is installed inside the mixing tank to detect the reaction state of the high-salt wastewater and the head ash inside the mixing tank.

[0005] In one embodiment, the detection component includes a pH detector; and / or, The detection component includes a conductivity detector; and / or, The detection component includes a liquid level detector.

[0006] In one embodiment, the stirring mechanism includes a stirring motor, a stirring shaft, and stirring blades. The stirring shaft is coaxially disposed inside the mixing tank, the stirring motor is disposed on the cover plate, and the stirring motor is drivenly connected to the stirring shaft. The stirring blades are disposed on the stirring shaft.

[0007] In one embodiment, the mixing tank has a tapered section at its lower end, and the inner diameter of the tapered section gradually decreases from top to bottom. The lower end of the tapered section is provided with a slag discharge port, and a slag discharge valve is provided correspondingly at the slag discharge port.

[0008] In one embodiment, the wastewater and waste ash co-treatment device further includes a pneumatic-assisted cleaning device, which is connected to the slag discharge port.

[0009] In one embodiment, the stirring mechanism includes a stirring motor, a stirring shaft, and a scraper. The stirring shaft is coaxially disposed inside the mixing tank. The stirring motor is disposed on the cover plate and is drivenly connected to the stirring shaft. The scraper is connected to the stirring shaft and abuts against the inner wall of the tapered section to drive the scraper to scrape the inner wall of the tapered section.

[0010] In one embodiment, the feeder includes a screw feeder; and / or, The liquid supply pipe is equipped with a flow pump.

[0011] In one embodiment, the feeder includes a screw feeder, and a flow pump is provided on the liquid supply pipe. The wastewater and waste ash co-treatment device also includes a controller. The screw feeder and the flow pump are both electrically connected to the controller to control the feed rate of high-salt wastewater and head ash.

[0012] In one embodiment, the controller includes a signal acquisition module, a proportional adjustment module, and a control module that are electrically connected to each other. The signal acquisition module is used to acquire the current feeding speed of the screw feeder and the flow pump, and the proportional adjustment module is used to calculate the feeding speed of the screw feeder and the flow pump. The control module is used to control the feeding speed of the screw feeder and the flow pump to supply high-salt wastewater and head ash to the mixing tank in a preset ratio.

[0013] In one embodiment, the wastewater and waste ash co-treatment device further includes a liquid outlet pipe, one end of which is located inside the mixing tank, and the liquid outlet pipe is used to discharge the supernatant inside the mixing tank; and / or, The mixing tank is equipped with a maintenance observation window; and / or, The outer wall of the mixing tank is provided with a heating and insulation component; and / or, The inner wall of the mixing tank is provided with an anti-scaling coating.

[0014] In this invention, high-salinity wastewater is fed into a mixing tank via the supply pipe; blast furnace ash is fed into the mixing tank via the feeder; by controlling the feed rates of high-pressure wastewater and blast furnace ash, the high-salinity wastewater and blast furnace ash are fed into the mixing tank in a suitable ratio; by controlling the stirring mechanism, the high-salinity wastewater and blast furnace ash are mixed and stirred to ensure uniform mixing and accelerate the reaction rate; by placing the detection component inside the mixing tank, the reaction state of the high-salinity wastewater and blast furnace ash is detected to determine whether the reaction endpoint has been reached. The overall structure is more compact, the processing area is more concentrated, reducing the floor space required and addressing the issue of a large footprint. Attached Figure Description

[0015] 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 the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of an embodiment of the wastewater and waste ash co-treatment device provided by this utility model.

[0017] Explanation of icon numbers: 1. Mixing tank; 11. Cover plate; 12. Gradient section; 2. Stirring mechanism; 21. Stirring motor; 22. Stirring shaft; 23. Stirring blade; 24. Scraper; 3. Liquid supply pipe; 4. Feeder; 5. Detection components; 51. pH detector; 52. Conductivity detector; 53. Liquid level detector; 6. Air pressure assisted cleaning device; 7. Controller; 8. Liquid outlet pipe.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] The co-treatment technology of high-salinity wastewater and blast furnace dust is widely used in industries such as steel, cement, and power plants. In the co-treatment of high-salinity solid waste ash (such as sintering electrostatic precipitator ash) and acidic wastewater from steel plants, several methods are commonly employed. One method involves staged immersion washing, micro-electrolytic oxidation, and countercurrent evaporation to achieve the joint removal and resource recovery of pollutants such as potassium chloride and thallium. This method boasts advantages such as relatively simple process conditions, low energy consumption, and no wastewater discharge. The process mainly relies on water washing and multi-step chemical processes. Another method involves mixing the washed sintered ash with blast furnace bag filter ash to form pellets and heat-treat it. The high-salinity solid waste is then utilized through a combination of processes including flue gas cooling, staged water washing, and evaporation for salt separation. This method reduces wastewater volume and enhances resource utilization. However, this approach is complex, involving multiple modules (pelletizing, heat treatment, flue gas treatment, sedimentation, and evaporation). The processes described above typically involve multiple stages such as water washing, heat treatment / leaching, evaporation / crystallization. These processes are complex, the equipment is relatively scattered, the equipment zoning is complex, making it difficult to integrate them into a single unit, and the layout requires a large floor space.

[0023] This utility model proposes a wastewater and waste ash co-treatment device.

[0024] Please see Figure 1In one embodiment of this utility model, the wastewater and waste ash co-treatment device includes a mixing tank 1, a stirring mechanism 2, a liquid supply pipe 3, a feeder 4, and a detection component 5. The mixing tank 1 has a cover plate 11 at its upper end, with a first feeding port and a second feeding port on the cover plate 11. The stirring mechanism 2 is at least partially disposed within the mixing tank 1 to stir and mix the machine head ash and high-salt wastewater within the mixing tank 1. The outlet of the liquid supply pipe 3 is connected to the first feeding port and is used to supply high-salt wastewater to the mixing tank 1. The outlet of the feeder 4 is connected to the second feeding port, and the feeder 4 is used to supply machine head ash to the mixing tank 1. The detection component 5 is disposed within the mixing tank 1 to detect the reaction state of the high-salt wastewater and machine head ash within the mixing tank 1.

[0025] In this invention, high-salt wastewater is fed into the mixing tank 1 via the supply pipe 3; blast furnace ash is fed into the mixing tank 1 via the feeder 4; by controlling the feed rates of high-pressure wastewater and blast furnace ash, the high-salt wastewater and blast furnace ash are fed into the mixing tank 1 in a suitable ratio; by controlling the stirring mechanism 2, the high-salt wastewater and blast furnace ash are mixed and stirred to ensure uniform mixing and accelerate the reaction rate; by placing the detection component 5 inside the mixing tank 1, the reaction state of the high-salt wastewater and blast furnace ash is detected to determine whether the reaction endpoint has been reached in the mixing tank 1. The overall structure is more compact, the processing area is more concentrated, the floor space is reduced, and the problem of a large floor space requirement is improved.

[0026] The mixing tank 1 can be a metal tank or a non-metal tank, which is not limited here; specifically, the mixing tank 1 can be a metal tank, as metal tanks are easy to process and have high strength. The axis of the mixing tank 1 is along the vertical direction, and the cross-section of the mixing tank 1 is circular. The stirring mechanism 2 can be any existing stirring device, which is not limited here. The liquid supply pipe 3 is used to connect to the source of high-salinity wastewater. The high-salinity wastewater in the liquid supply pipe 3 can flow naturally into the mixing tank 1 under the action of gravity. A water pump can also be installed on the liquid supply pipe 3 to pressurize and actively send the high-salinity wastewater into the mixing tank 1, which is not limited here. The feeder 4 can be any feasible conveying device such as a conveyor belt, screw conveyor, and bucket conveyor, so as to send the ash from the material source into the mixing pipe.

[0027] Please see Figure 1The detection component 5 includes a pH detector 51. High-salt wastewater is acidic wastewater. During the reaction between the high-salt wastewater and the ash from the mixing tank, the pH value in the mixing tank 1 depends on the reaction effect between the high-salt wastewater and the ash. By setting the pH detector 51, the reaction state in the mixing tank 1 can be detected by measuring the pH value. The height of the pH detector 51 should not exceed the lowest water level in the mixing tank 1. The pH detector 51 is used to detect the pH value of the supernatant in the mixing tank 1. Specifically, when the pH value of the supernatant is between 6.5 and 8.5 (inclusive), the supernatant meets the discharge or direct reuse standards.

[0028] The detection component 5 includes a conductivity detector 52; as the high-salt wastewater and machine head ash in the mixing tank 1 react, the conductivity in the mixing tank 1 changes. By detecting the change in conductivity in the mixing tank 1, the reaction state of the machine head ash and high-salt wastewater in the mixing tank 1 can be detected.

[0029] The detection component 5 includes a liquid level detector 53. As the ash from the machine head and the high-salt wastewater react, the liquid level in the mixing tank 1 changes. By detecting the liquid level through the liquid level detector 53, the reaction status of the ash from the machine head and the high-salt wastewater in the mixing tank 1 can be detected.

[0030] The pH detector 51, conductivity detector 52, and level detector 53 can respectively detect the reaction state of the head ash and high-salt wastewater in the mixing tank 1. These detectors can be mutually derived to improve detection accuracy. The pH detector 51 and conductivity detector 52 can be separate instruments or different modules within the same instrument; no limitation is made here. Specifically, the pH detector 51 and conductivity detector 52 belong to different modules within the same instrument.

[0031] When the ash from the machine head and high-salinity wastewater are added to the mixing tank 1, the mixing ratio of the ash and wastewater can be detected by the pH detector 51 and the conductivity detector 52, facilitating the adjustment of the mixing ratio. In this application, the mixing ratio of the ash and wastewater can be adjusted, and the automatic adjustment response time is less than 5 seconds, precisely maintaining a neutral or slightly alkaline state in the reaction zone: the neutralization rate is increased by 10%–15%, and side reactions are reduced.

[0032] Please see Figure 1The stirring mechanism 2 includes a stirring motor 21, a stirring shaft 22, and a stirring blade 23. The stirring shaft 22 is coaxially disposed inside the mixing tank 1. The stirring motor 21 is disposed on the cover plate 11 and is drivenly connected to the stirring shaft 22. The stirring blade 23 is disposed on the stirring shaft 22.

[0033] After the motor is started, the stirring shaft 22 drives the stirring blades 23 to rotate, thereby accelerating the mixing speed of the head ash and high-salt wastewater in the mixing tank 1, so as to make the reaction of the head ash and high-salt wastewater uniform. Multiple stirring blades 23 can be arranged circumferentially and axially around the stirring shaft 22. Specifically, the number of stirring blades 23 can be two, three, four, or more, without limitation; specifically, four stirring blades 23 are provided.

[0034] The mixing tank 1 has a tapered section 12 at its lower end. The inner diameter of the tapered section 12 gradually decreases from top to bottom. A slag discharge port is provided at the lower end of the tapered section 12, and a slag discharge valve is provided correspondingly at the slag discharge port. After the high-salt wastewater and the ash from the machine head react, solid residue is produced. After falling onto the inner wall of the tapered section, the solid residue can slide towards the slag discharge port, so that the solid residue can be discharged from the slag discharge port.

[0035] To reduce clogging of the slag discharge port by solid residue, the wastewater and waste ash co-treatment device further includes a pneumatically assisted cleaning device 6, which is connected to the slag discharge port. After solid residue clogs the slag discharge port, the pneumatically assisted cleaning device 6 pressurizes and supplies air to the slag discharge port to clear the blockage. The pneumatically assisted cleaning device 6 includes a connecting pipe and an air source. The connecting pipe connects the slag discharge port and the air source, which can be a gas cylinder or a gas generator, and is not limited thereto.

[0036] Please see Figure 1 The stirring mechanism 2 includes a stirring motor 21, a stirring shaft 22, and a scraper 24. The stirring shaft 22 is coaxially disposed inside the mixing tank 1. The stirring motor 21 is disposed on the cover plate 11 and is drivenly connected to the stirring shaft 22. The scraper 24 is connected to the stirring shaft 22 and abuts against the inner sidewall of the tapered section 12 to drive the scraper 24 to scrape the inner sidewall of the tapered section 12.

[0037] After solid residue falls onto the inner wall of the tapered section 12, it tends to adhere to the inner wall. To reduce this adhesion, after the stirring motor 21 is started, the stirring shaft 22 drives the scraper 24 to scrape the inner wall of the tapered section 12, thereby reducing the amount of residue adhering to it and causing it to fall towards the discharge port. Multiple scrapers 24 are spaced circumferentially around the stirring shaft 22, improving the scraping effect on the inner wall of the tapered section 12.

[0038] The feeder 4 includes a screw feeder. The screw feeder can continuously and stably feed the dust from the lower part of the die head into the second feeding port above. The screw feeder has a small fluctuation range in the conveying speed of the powder, making it easy to control the feed amount of the dust from the die head.

[0039] A flow pump is installed on the supply pipe 3. By controlling the flow pump, the amount of high-salt wastewater supplied to the mixing tank 1 can be precisely controlled through the pumping speed and pumping time. The flow pump can be a variable frequency pump.

[0040] The screw feeder and the flow pump allow for easy control of the supply of head ash and high-salt wastewater to the mixing tank 1, thereby adding the high-salt wastewater and head ash into the mixing tank 1 in a preset ratio.

[0041] Please see Figure 1 The feeder 4 includes a screw feeder, and the liquid supply pipe 3 is equipped with a flow pump. The wastewater and waste ash co-treatment device also includes a controller 7. Both the screw feeder and the flow pump are electrically connected to the controller 7 to control the feed rate of high-salt wastewater and head ash. The controller 7 can automatically control the conveying speed and running time of the screw feeder and the flow pump to ensure that high-salt wastewater and head ash are added to the mixing tank 1 in a preset ratio.

[0042] The controller 7 includes a signal acquisition module, a proportional adjustment module, and a control module that are electrically connected to each other. The signal acquisition module is used to acquire the current feeding speed of the screw feeder and the flow pump. The proportional adjustment module is used to calculate the feeding speed of the screw feeder and the flow pump. The control module is used to control the feeding speed of the screw feeder and the flow pump to supply high-salt wastewater and head ash to the mixing tank 1 at a preset ratio.

[0043] When the head ash and high-salt wastewater are fed into the mixing tank 1 in a preset ratio, the feeding speed of the head ash and high-salt wastewater can be controlled to meet the preset ratio. The signal acquisition module can collect the actual feeding speed of the screw feeder and the flow pump. The proportional module can calculate the target feeding speed of the screw feeder and the flow pump. The control module can adjust the feeding speed of the screw feeder and the flow pump according to the difference between the target feeding speed and the actual feeding speed, so that the actual feeding speed of the screw feeder and the flow pump meets the target feeding speed.

[0044] The signal acquisition module can be connected to a flow pump to obtain the pumping speed of the high-salt wastewater. The flow pump can also be connected to a liquid flow meter, which is electrically connected to the signal acquisition module. The screw conveyor can be a weighing screw conveyor, so that the signal acquisition module can obtain the conveying speed of the screw conveyor carrying the head ash after being electrically connected to the screw conveyor. The screw conveyor can also be equipped with an impulse flow meter or nuclear scale, which can be connected to the signal acquisition module to detect the conveying speed of the screw conveyor carrying the head ash.

[0045] The controller 7 can be a microcontroller, PLC, or industrial computer, and is not limited here. The signal acquisition module, the proportional adjustment module, and the control module can be physical modules or virtual modules within the controller 7, and are not limited here; specifically, the control module is a PLC control unit.

[0046] Please see Figure 1 The wastewater and waste ash co-treatment device also includes a discharge pipe 8, one end of which is located inside the mixing tank 1. The discharge pipe 8 is used to discharge the supernatant in the mixing tank 1. After the mixing of the machine head ash and high-salt wastewater stops, the machine head ash and high-salt wastewater continue to react. After the reaction is completed, the solid residue falls onto the tapering section 12 to form supernatant in the upper part of the mixing tank 1. The supernatant can be discharged from the mixing tank 1 through the discharge pipe 8 for reuse or direct discharge.

[0047] The liquid outlet pipe 8 is a siphon-type liquid outlet pipe. After the liquid outlet pipe 8 is opened, the supernatant can be discharged to the outside of the mixing tank 1 by siphon.

[0048] The inner wall of the mixing tank 1 is provided with an anti-scaling coating. By providing an anti-scaling coating, the amount of solid residue adhering to the inner wall of the mixing tank 1 can be reduced, so as to facilitate the discharge of as much solid residue as possible.

[0049] The mixing tank 1 is equipped with an inspection window. With the help of the inspection window, the mixing state of the ash from the machine head and the high-salt wastewater in the mixing tank 1 can be observed. During the neutralization process of the ash from the machine head and the high-salt wastewater, the reaction state of the ash from the machine head and the high-salt wastewater can also be observed, and the state of the supernatant can also be easily observed.

[0050] The outer wall of the mixing tank 1 is provided with a heating and heat preservation component. Through the heating and heat preservation component, the temperature inside the mixing tank 1 can be maintained so that the temperature inside the mixing tank 1 is kept within the target range. Specifically, the highest temperature inside the mixing tank 1 is not higher than 42°C and the lowest temperature inside the mixing tank 1 is not lower than 38°C.

[0051] In this application, five functions—high-salt wastewater feeding, head ash addition, reaction, detection, and discharge—are integrated into a single device, avoiding the risk of external pipeline blockage and reducing the plant floor space by approximately 20%.

[0052] The mixing ratio of ash and wastewater is controlled by pH and conductivity linkage; the response time is automatically adjusted to <5 seconds to accurately maintain the neutral or weakly alkaline state in the reaction zone: the neutralization rate is increased by 10% to 15% and side reactions are reduced.

[0053] This technical solution allows for an acceptable salt concentration range of 5%–25% for high-salinity wastewater and an acceptable moisture content of 20%–45% for machine head ash, thus offering a wide treatment range. In this application, the turbidity of the supernatant is no greater than 30 NTU, and the pH range of the supernatant is 6.5–8.5; the solid-liquid ratio of machine head ash to high-salinity wastewater is 1:20–1:30; the operating temperature within the mixing tank 1 is 35–45°C; and the operating noise is less than 65 dB.

[0054] To handle waste liquids subject to periodic shock loads or high concentration fluctuations, this invention can be expanded into a parallel modular treatment system, combining multiple units in series and parallel. Each module operates independently, shares a data acquisition platform, and is managed centrally from a control room.

[0055] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wastewater and waste ash co-treatment device, characterized in that, include: A mixing tank with a cover plate at the top, the cover plate having a first feed port and a second feed port; A stirring mechanism is at least partially located inside the mixing tank to stir and mix the machine head ash and high-salt wastewater inside the mixing tank; A liquid supply pipe, the outlet of which is connected to the first feed port, is used to supply high-salt wastewater to the mixing tank; A feeder, the discharge port of which is connected to the second feed port, is used to supply head ash to the mixing tank; and... A detection component is installed inside the mixing tank to detect the reaction state of the high-salt wastewater and the head ash inside the mixing tank.

2. The wastewater and waste ash co-treatment device as described in claim 1, characterized in that, The detection component includes a pH detector; and / or, The detection component includes a conductivity detector; and / or, The detection component includes a liquid level detector.

3. The wastewater and waste ash co-treatment device as described in claim 1, characterized in that, The stirring mechanism includes a stirring motor, a stirring shaft, and stirring blades. The stirring shaft is coaxially disposed inside the mixing tank. The stirring motor is disposed on the cover plate and is drivenly connected to the stirring shaft. The stirring blades are disposed on the stirring shaft.

4. The wastewater and waste ash co-treatment device as described in claim 1, characterized in that, The mixing tank has a tapered section at the lower end, and the inner diameter of the tapered section gradually decreases from top to bottom. The lower end of the tapered section is provided with a slag discharge port, and a slag discharge valve is provided correspondingly at the slag discharge port.

5. The wastewater and waste ash co-treatment device as described in claim 4, characterized in that, The wastewater and waste ash co-treatment device also includes a pneumatic auxiliary cleaning device, which is connected to the slag discharge port.

6. The wastewater and waste ash co-treatment device as described in claim 4, characterized in that, The stirring mechanism includes a stirring motor, a stirring shaft, and a scraper. The stirring shaft is coaxially disposed inside the mixing tank. The stirring motor is disposed on the cover plate and is drivenly connected to the stirring shaft. The scraper is connected to the stirring shaft and abuts against the inner wall of the tapered section to drive the scraper to scrape the inner wall of the tapered section.

7. The wastewater and waste ash co-treatment device as described in claim 1, characterized in that, The feeder includes a screw feeder; and / or, The liquid supply pipe is equipped with a flow pump.

8. The wastewater and waste ash co-treatment device as described in claim 1, characterized in that, The feeder includes a screw feeder, and a flow pump is provided on the liquid supply pipe. The wastewater and waste ash co-treatment device also includes a controller. The screw feeder and the flow pump are both electrically connected to the controller to control the feed rate of high-salt wastewater and head ash.

9. The wastewater and waste ash co-treatment device as described in claim 8, characterized in that, The controller includes a signal acquisition module, a proportional adjustment module, and a control module that are electrically connected to each other. The signal acquisition module is used to acquire the current feeding speed of the screw feeder and the flow pump, and the proportional adjustment module is used to calculate the feeding speed of the screw feeder and the flow pump. The control module is used to control the feeding speed of the screw feeder and the flow pump to supply high-salt wastewater and head ash to the mixing tank in a preset ratio.

10. The wastewater and waste ash co-treatment device as described in claim 1, characterized in that, The wastewater and waste ash co-treatment device further includes a liquid outlet pipe, one end of which is located inside the mixing tank. The liquid outlet pipe is used to discharge the supernatant from the mixing tank; and / or... The mixing tank is equipped with a maintenance observation window; and / or, The outer wall of the mixing tank is provided with a heating and insulation component; and / or, The inner wall of the mixing tank is provided with an anti-scaling coating.

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