High-salinity wastewater incineration co-processing device

Abstract

The utility model provides a high-salinity wastewater incineration co-treatment device which solves the problem that waste salt is not subjected to harmless treatment in the existing high-salinity wastewater treatment process. Comprising an incinerator, a waste liquid pool and a waste liquid conveying pipeline. The incinerator comprises a rotary kiln and a secondary combustion chamber, the waste liquid pools comprise a first waste liquid pool and a second waste liquid pool, the waste liquid conveying pipeline comprises a first conveying pipeline and a second conveying pipeline, the first waste liquid pool is connected with an inlet of the first conveying pipeline, and the second waste liquid pool is connected with an inlet of the second conveying pipeline; a kiln head waste liquid spray gun, a kiln tail north side waste liquid spray gun and a kiln tail west side waste liquid spray gun are sequentially arranged on the kiln head, the kiln tail north side and the kiln tail west side of the rotary kiln; a secondary combustion chamber waste liquid spray gun is arranged in the secondary combustion chamber; the first conveying pipeline is connected with a secondary combustion chamber waste liquid spray gun, a kiln head waste liquid spray gun and a kiln tail north side waste liquid spray gun through a branch line at the tail end; and the second conveying pipeline is connected with the secondary combustion chamber waste liquid spray gun, the kiln head waste liquid spray gun and the kiln tail west side waste liquid spray gun through a branch line at the tail end.

Description

Technical Field

[0001] The present application relates to the technical field of high-salt wastewater treatment, and more specifically, to a high-salt wastewater incineration collaborative disposal device. Background Art

[0002] Currently, existing technologies for treating high-salinity wastewater primarily include three steps: physicochemical treatment, biological treatment, and advanced treatment. The details are as follows: S1. Physicochemical Treatment: After adjusting the pH of the high-salinity wastewater, static sedimentation is used to separate suspended solids and some oils from the wastewater. Coagulants and flocculants are then used to precipitate and separate impurities from the wastewater. The clear liquid undergoes triple-effect evaporation to separate the salt from the high-salinity wastewater. The separated waste salt is disposed of in a rigid landfill. S2. Biological Treatment: Biological treatment primarily involves aerobic and anaerobic methods. For example, aerobic biological methods involve adding bacteria to the treatment tank to oxidize and decompose organic matter in the wastewater into carbon dioxide and water, thereby reducing the COD concentration. S3. Advanced Treatment: Advanced treatment primarily includes various methods, including reverse osmosis high-salinity wastewater treatment processes, ion exchange, and thermal evaporation. The wastewater is forced through a reverse osmosis membrane under pressure, resulting in nanometer-sized pores. The pressure differential removes ions and solutes from the wastewater, achieving water purification.

[0003] The existing high-salt wastewater treatment technology has a complex process and cumbersome steps. The waste salt generated by the physicochemical treatment in step S1 is not treated harmlessly, but is temporarily stored in a rigid landfill, which still causes serious pollution to the ecological environment and cannot meet current environmental protection needs. Utility Model Content

[0004] In order to solve the above existing problems, the technical solution adopted by the utility model is: to provide a high-salt wastewater incineration collaborative disposal device, which solves the problem that waste salt is not harmlessly treated in the existing high-salt wastewater treatment process, including an incinerator, a waste liquid pool and a waste liquid transportation pipeline; the incinerator includes a rotary kiln and a secondary combustion chamber, the waste liquid pool includes a first waste liquid pool and a second waste liquid pool, the waste liquid transportation pipeline includes a first transportation pipeline and a second transportation pipeline, the first waste liquid pool is connected to the inlet of the first transportation pipeline, The second waste liquid pool is connected to the entrance of the second conveying pipeline; the kiln head, the north side of the kiln tail and the west side of the kiln tail of the rotary kiln are respectively provided with the kiln head waste liquid spray gun, the kiln tail north side waste liquid spray gun and the kiln tail west side waste liquid spray gun, and the second combustion chamber is provided with a second combustion chamber waste liquid spray gun; the first conveying pipeline is connected to the second combustion chamber waste liquid spray gun, the kiln head waste liquid spray gun and the kiln tail north side waste liquid spray gun through the branch line at the end; the second conveying pipeline is connected to the second combustion chamber waste liquid spray gun, the kiln head waste liquid spray gun and the kiln tail west side waste liquid spray gun through the branch line at the end.

[0005] Preferably, the first waste liquid pool contains high calorific value waste liquid, and the second waste liquid pool contains low calorific value high-salt waste water.

[0006] Preferably, the rotary kiln is connected to the secondary combustion chamber, and the outlet of the waste liquid spray gun of the secondary combustion chamber is connected to the interior of the secondary combustion chamber.

[0007] Preferably, a driving mechanism is provided at the inlet of the first conveying pipeline and the inlet of the second conveying pipeline respectively.

[0008] Preferably, the driving mechanism is a pneumatic diaphragm pump.

[0009] Preferably, the branch line of the first delivery pipeline and the branch line of the second delivery pipeline are both provided with valves for controlling the opening and closing of the branch line passages.

[0010] Preferably, a third delivery pipeline is provided between the first delivery pipeline and the second delivery pipeline, and a valve for controlling the opening and closing of the third delivery pipeline is provided on the third delivery pipeline.

[0011] Preferably, a temperature sensor is provided in the incinerator, the temperature sensor is connected to a PLC control module, and the PLC control module is electrically connected to the valve.

[0012] The beneficial effects of the present invention are as follows: the waste liquid pool includes a first waste liquid pool and a second waste liquid pool, the waste liquid delivery pipeline includes a first delivery pipeline and a second delivery pipeline, the first delivery pipeline and the second delivery pipeline operate independently, and the high calorific value waste liquid of the first waste liquid pool and the low calorific value and high salt wastewater of the second waste liquid pool are delivered to a plurality of waste liquid spray guns, and different waste liquid spray guns spray materials of different calorific values ​​according to the temperature of the mixed material in the incinerator, so that the temperature of the mixed material is always maintained within the dynamic range that can vitrify the waste salt, and the waste salt is hardened and vitrified through high-temperature incineration, eliminating the solubility of the waste salt, realizing the harmless treatment of high-salt wastewater, and reducing the damage of waste salt to the ecological environment; simplifying the treatment process of high-salt wastewater and improving treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Explanation of symbols in the figure: 1. Rotary kiln; 2. Secondary combustion chamber; 3. First waste liquid tank; 4. Secondary waste liquid tank; 5. First conveying pipeline; 6. Secondary conveying pipeline; 7. Waste liquid spray gun at the kiln head; 8. Waste liquid spray gun at the north side of the kiln tail; 9. Waste liquid spray gun at the west side of the kiln tail; 10. Waste liquid spray gun at the secondary combustion chamber; 11. Diaphragm pump; 12. Valve. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0017] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0018] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0019] A high-salt wastewater incineration collaborative disposal device provided in an embodiment of the present application is now described.

[0020] See also Figure 1 , is a schematic diagram of the structure of the utility model, the high-salt wastewater incineration coordinated disposal device includes an incinerator, a waste liquid pool and a waste liquid delivery pipeline; the incinerator includes a rotary kiln 1 and a secondary combustion chamber 2, the waste liquid pool includes a first waste liquid pool 3 and a second waste liquid pool 4, the waste liquid delivery pipeline includes a first delivery pipeline 5 and a second delivery pipeline 6, the first waste liquid pool 3 is connected to the inlet of the first delivery pipeline 5, and the second waste liquid pool 4 is connected to the inlet of the second delivery pipeline 6; the kiln of the rotary kiln 1 The kiln head waste liquid spray gun 7, the kiln tail north side waste liquid spray gun 8 and the kiln tail west side waste liquid spray gun 9 are provided in sequence at the kiln head, the kiln tail north side waste liquid spray gun 8 and the kiln tail west side waste liquid spray gun 9, and the secondary combustion chamber 2 is provided with a secondary combustion chamber waste liquid spray gun 10; the first conveying pipeline 5 is connected to the secondary combustion chamber waste liquid spray gun 10, the kiln head waste liquid spray gun 7 and the kiln tail north side waste liquid spray gun 8 through the branch line at the end; the second conveying pipeline 6 is connected to the secondary combustion chamber waste liquid spray gun 10, the kiln head waste liquid spray gun 7 and the kiln tail west side waste liquid spray gun 9 through the branch line at the end. Specifically, the material in the first waste liquid pool 3 enters the secondary combustion chamber waste liquid spray gun 10, the kiln head waste liquid spray gun 7 and the kiln tail north side waste liquid spray gun 8 through the first conveying pipeline 5, and the material in the second waste liquid pool 4 enters the secondary combustion chamber waste liquid spray gun 10, the kiln head waste liquid spray gun 7 and the kiln tail west side waste liquid spray gun 9 through the second conveying pipeline 6.

[0021] Specifically, the first waste liquid pool 3 contains high calorific value waste liquid, and the second waste liquid pool 4 contains low calorific value, high-salt waste water. The high calorific value waste liquid enters the secondary combustion chamber waste liquid spray gun 10, the kiln head waste liquid spray gun 7, and the kiln tail north side waste liquid spray gun 8 through the first delivery pipeline 5, and the low calorific value, high-salt waste water enters the secondary combustion chamber waste liquid spray gun 10, the kiln head waste liquid spray gun 7, and the kiln tail west side waste liquid spray gun 9 through the second delivery pipeline 6. The high calorific value waste liquid and the low calorific value, high-salt waste water enter the rotary kiln 1 through the kiln head waste liquid spray gun 7 for mixing and incineration. The staff controls different waste liquid spray guns to spray materials of different calorific values ​​into the incinerator according to the temperature of the mixed material in the incinerator, so as to dynamically adjust the temperature of the mixed material, so that the waste salt portion in the high-salt waste water is always kept within the temperature range where it can be vitrified. After high-temperature incineration, it can be hard-vitrified, thereby reducing the solubility of the waste salt and achieving harmless treatment of the high-salt waste water.

[0022] During use, when the temperature and calorific value of the mixed material in the incinerator are too high, the waste liquid spray gun 7 at the kiln head is controlled to spray low calorific value, high salt waste water into the rotary kiln 1, effectively reducing the calorific value of the mixed material and preventing the waste salt in the high salt waste water from entering a molten state at high temperature and crystallizing after cooling; the low calorific value, high salt waste water is fully mixed with the high calorific value waste liquid through the rotary kiln 1, and the temperature of the waste salt is maintained within the range that can be vitrified, so that the soluble waste salt is fixed in the glassy matrix and the solubility is eliminated after high-temperature incineration, thereby facilitating a thorough and stable harmless treatment of the waste salt. When the calorific value of the mixed material in the incinerator is too low, the waste liquid spray gun 8 on the north side of the kiln tail sprays high calorific value waste liquid into the secondary combustion chamber 2, and then the waste liquid spray gun 9 on the west side of the kiln tail sprays low calorific value, high salt waste water into the secondary combustion chamber 2 to continue the harmless incineration treatment, thereby maintaining the temperature in the incinerator always within the range that can vitrify the waste salt and achieving a dynamic balance of material temperature.

[0023] Furthermore, the rotary kiln 1 is connected to the secondary combustion chamber 2, and the outlet of the secondary combustion chamber waste liquid spray gun 10 is connected to the interior of the secondary combustion chamber 2. Specifically, the secondary combustion chamber waste liquid spray gun 10 serves as a backup disposal point of the device and a cooling and heating point of the entire circulation system. The staff can control the secondary combustion chamber waste liquid spray gun 10 to spray materials with different calorific values ​​according to the temperature of the mixed material in the incinerator.

[0024] Furthermore, driving mechanisms are respectively provided at the inlets of the first conveying pipeline 5 and the second conveying pipeline 6 to convey the materials in the first waste liquid pool 3 and the second waste liquid pool 4 into different waste liquid spray guns for storage.

[0025] In one embodiment, the driving mechanism is a pneumatic diaphragm pump 11 .

[0026] Furthermore, the branch line of the first delivery pipeline 5 and the branch line of the second delivery pipeline 6 are both provided with valves 12 for controlling the opening and closing of the branch line passages.

[0027] Furthermore, a third delivery pipeline is provided between the first delivery pipeline 5 and the second delivery pipeline 6 , and a valve 12 for controlling the opening and closing of the third delivery pipeline is provided on the third delivery pipeline.

[0028] In one embodiment, a temperature sensor is installed in the incinerator, which is connected to a PLC control module, which is electrically connected to valve 12. A temperature range is pre-set on the PLC control module by the operator. When the temperature of the material in the incinerator is higher or lower than the set temperature range, the PLC control module controls the valves 12 on the pipelines corresponding to the different waste liquid spray guns to open or close, promptly spraying high-calorific value waste liquid or low-calorific value, high-salt wastewater into the incinerator to ensure that the waste salt can maintain a stable vitrified state and be harmlessly treated.

[0029] Specifically, the PLC control module is electrically connected to a display module to display and monitor the temperature of the material in the incinerator.

[0030] The working process of the utility model is as follows: when the calorific value of the mixed material in the incinerator is too high, the waste liquid spray gun 7 at the kiln head sprays low calorific value, high salt wastewater into the rotary kiln 1, and the temperature of the waste salt is kept within the range that allows vitrification. When the calorific value of the mixed material in the incinerator is too low, the waste liquid spray gun 8 at the north side of the kiln tail sprays high calorific value waste liquid into the secondary combustion chamber 2, and then the waste liquid spray gun 9 at the west side of the kiln tail sprays low calorific value, high salt wastewater into the secondary combustion chamber 2 to continue the harmless incineration treatment.

[0031] In the present invention, the waste liquid pool includes a first waste liquid pool 3 and a second waste liquid pool 4, and the waste liquid delivery pipeline includes a first delivery pipeline 5 and a second delivery pipeline 6. The first delivery pipeline 5 and the second delivery pipeline 6 operate independently to deliver the high calorific value waste liquid of the first waste liquid pool 3 and the low calorific value and high salt wastewater of the second waste liquid pool 4 to multiple waste liquid spray guns. Different waste liquid spray guns spray materials with different calorific values ​​according to the temperature of the mixed material in the incinerator, so that the temperature of the mixed material is always maintained within the dynamic range that can vitrify the waste salt. The waste salt is hard-vitrified after high-temperature incineration, eliminating the solubility of the waste salt, realizing the harmless treatment of high-salt wastewater, and reducing the damage of waste salt to the ecological environment; simplifying the treatment process of high-salt wastewater and improving treatment efficiency.

[0032] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A high-salt wastewater incineration collaborative disposal device, comprising an incinerator, a waste liquid pool, and a waste liquid transportation pipeline, characterized in that: The incinerator comprises a rotary kiln (1) and a secondary combustion chamber (2); the waste liquid pool comprises a first waste liquid pool (3) and a second waste liquid pool (4); the waste liquid delivery pipeline comprises a first delivery pipeline (5) and a second delivery pipeline (6); the first waste liquid pool (3) is connected to the inlet of the first delivery pipeline (5), and the second waste liquid pool (4) is connected to the inlet of the second delivery pipeline (6); the kiln head, the north side of the kiln tail and the west side of the kiln tail of the rotary kiln (1) are provided with a kiln head waste liquid spray gun (7), a kiln head waste liquid spray gun (8), a kiln head waste liquid spray gun (9), a kiln head waste liquid spray gun (10), a kiln head waste liquid spray gun (11), a kiln head waste liquid spray gun (12), a kiln head waste liquid spray gun (13), a kiln head waste liquid spray gun (14), a kiln head waste liquid spray gun (15), a kiln head waste liquid spray gun (16), a kiln head waste liquid spray gun (17), a kiln head waste liquid spray gun (18), a kiln head waste liquid spray gun (19), a kiln head waste liquid spray gun (20), a kiln head waste liquid spray gun (21), a kiln head waste liquid spray gun (22), a kiln head waste liquid spray gun (23), a kiln head waste liquid spray gun (24), a kiln head waste liquid spray gun (25), a kiln head waste liquid spray gun (26), a kiln head waste liquid spray gun (27), a kiln head waste liquid spray gun (28), a kiln head waste liquid spray gun (29), a kiln head waste liquid spray gun (3), a kiln head waste liquid spray gun (3), a kiln head waste liquid spray gun (3), a kiln head waste liquid spray gun (4), a kiln head waste liquid spray gun (3), a kiln head waste liquid spray gun The waste liquid spray gun (8) on the north side of the tail and the waste liquid spray gun (9) on the west side of the kiln tail are provided in the secondary combustion chamber (2); the second combustion chamber waste liquid spray gun (10) is provided in the secondary combustion chamber (2); the first conveying pipeline (5) is connected to the waste liquid spray gun (10) of the secondary combustion chamber, the waste liquid spray gun (7) of the kiln head and the waste liquid spray gun (8) on the north side of the kiln tail through the branch line at the end; the second conveying pipeline (6) is connected to the waste liquid spray gun (10) of the secondary combustion chamber, the waste liquid spray gun (7) of the kiln head and the waste liquid spray gun (9) on the west side of the kiln tail through the branch line at the end.

2. The high-salt wastewater incineration collaborative treatment device according to claim 1, characterized in that: The first waste liquid pool (3) contains high calorific value waste liquid, and the second waste liquid pool (4) contains low calorific value high-salt waste water.

3. The high-salt wastewater incineration collaborative treatment device according to claim 1, characterized in that: The rotary kiln (1) is connected to the secondary combustion chamber (2), and the outlet of the secondary combustion chamber waste liquid spray gun (10) is connected to the interior of the secondary combustion chamber (2).

4. The high-salt wastewater incineration collaborative treatment device according to claim 1, characterized in that: A driving mechanism is provided at the inlet of the first conveying pipeline (5) and the inlet of the second conveying pipeline (6).

5. The high-salt wastewater incineration coordinated disposal device according to claim 4, characterized in that: The driving mechanism is a pneumatic diaphragm pump (11).

6. The high-salt wastewater incineration coordinated disposal device according to claim 1, characterized in that: The branch line of the first delivery pipeline (5) and the branch line of the second delivery pipeline (6) are both provided with valves (12) for controlling the opening and closing of the branch line passages.

7. The high-salt wastewater incineration coordinated disposal device according to claim 6, characterized in that: A third delivery pipeline is provided between the first delivery pipeline (5) and the second delivery pipeline (6), and a valve (12) for controlling the opening and closing of the third delivery pipeline is provided on the third delivery pipeline.

8. A high-salt wastewater incineration coordinated disposal device according to claim 6 or 7, characterized in that: A temperature sensor is provided in the incinerator, the temperature sensor is connected to a PLC control module, and the PLC control module is electrically connected to the valve (12).

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