Desulfurization wastewater evaporation drying tower for thermal power plant

Abstract

The utility model relates to the technical field of wastewater treatment equipment, and discloses a thermal power plant desulfurization wastewater evaporation drying tower which comprises a treatment tank, a rotating assembly is arranged outside the treatment tank, a fixed cylinder is fixedly connected to the top of the treatment tank, a separation mechanism is arranged in the fixed cylinder, and the separation mechanism is installed at the top of the rotating assembly; the rotating assembly comprises a motor, the motor is fixedly connected to the exterior of the treatment tank, a rotating rod is fixedly connected to the output end of the motor, the end, away from the motor, of the rotating rod is rotationally connected to the inner wall of the treatment tank, and a plurality of connecting pipes are fixedly connected to the exterior of the rotating rod. According to the utility model, the rotating rod and the connecting pipe cooperatively operate to push atomized wastewater to rise, prevent accumulation, maintain stable and efficient evaporation and improve the wastewater treatment rate. Solid impurities are accurately filtered out through the filter element in the dust removal pipe, the purified wastewater reaches the secondary utilization standard, water resources are recycled, and resource waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment equipment technical field especially relates to a power plant desulfurization wastewater evaporation drying tower. BACKGROUND

[0002] The power plant is the factory that utilizes combustible (such as coal, petroleum, natural gas) combustion generated heat energy to generate electricity. Its basic production process includes that fuel burns in boiler heating water generates steam, steam pushes turbine rotation, turbine drives generator rotation and finally converts mechanical energy into electric energy, in the power generation process of power plant, desulfurization link can produce a large amount of wastewater, these desulfurization wastewater contains various harmful substances, such as heavy metal ions, sulfate, chloride, etc., if not effectively treated and directly discharged, can cause serious pollution and damage to soil, water and ecological environment.

[0003] At present, part of desulfurization wastewater treatment will adopt chemical precipitation method, mainly according to the principle that heavy metal ions in wastewater and specific chemical reagents occur chemical reaction to form precipitate. For example, add lime milk or other alkaline reagents to desulfurization wastewater, so that mercury, cadmium, lead and other heavy metal ions in wastewater form hydroxide precipitate and are removed. However, in this process, due to the complexity of chemical reaction and the diversity of material composition in wastewater, a large amount of sludge is produced. The composition of these sludge is complex, not only contains the precipitated heavy metal hydroxide, but also contains unreacted reagents and original suspended solids in wastewater. The subsequent treatment of a large amount of sludge is extremely difficult, and its storage, transportation and disposal need special facilities and processes, which increases the treatment cost and environmental risk. At the same time, for the dissolved salts such as sulfate and chloride in wastewater, chemical precipitation method is difficult to effectively remove. Because these salts have high solubility in water, they will not form precipitate under normal chemical precipitation conditions, so that the treated wastewater still contains high concentration of dissolved salts, which cannot meet the reuse or discharge standard of some high water quality requirements, limiting the deep treatment and resource utilization of desulfurization wastewater. CONTENT OF UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides a kind of power plant desulfurization wastewater evaporation drying tower, to improve the complexity of chemical reaction and the diversity of material composition in wastewater in prior art, a large amount of sludge is produced. The composition of these sludge is complex, not only contains the precipitated heavy metal hydroxide, but also contains unreacted reagents and original suspended solids in wastewater.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of power plant desulfurization wastewater evaporation drying tower, including treatment tank, the outside of the treatment tank is provided with rotating component, the top of the treatment tank is fixedly connected with fixed cylinder, the inside of the fixed cylinder is provided with separation mechanism, the separation mechanism is installed at the top of rotating component.

[0006] The rotating assembly comprises a motor fixedly connected outside the processing tank, an output end of the motor is fixedly connected with a rotating rod, one end of the rotating rod away from the motor is rotatably connected to the inner wall of the processing tank, and a plurality of connecting pipes are fixedly connected outside the rotating rod.

[0007] Further description of the above technical solution is as follows:

[0008] The separating mechanism comprises a dust removal pipe fixedly connected to the bottom of the fixed cylinder, a mounting groove is formed in the sidewall of the dust removal pipe, a filter core is detachably connected in the mounting groove, and a detaching assembly is arranged on the side of the filter core away from the dust removal pipe.

[0009] Further description of the above technical solution is as follows:

[0010] The detaching assembly comprises a baffle fixedly connected to one side of the filter core, the baffle is clamped to the outside of the processing tank, and a handle is fixedly connected to the outside of the baffle.

[0011] Further description of the above technical solution is as follows:

[0012] One end of the dust removal pipe away from the fixed cylinder is fixedly connected to the top of the processing tank.

[0013] Further description of the above technical solution is as follows:

[0014] One end of the dust removal pipe away from the fixed cylinder is fixedly connected to the top of the processing tank.

[0015] Further description of the above technical solution is as follows:

[0016] The processing tank is fixedly connected with a water inlet pipe on the side away from the rotating assembly, and an atomizing nozzle is fixedly connected to the inside of the processing tank at one end of the water inlet pipe.

[0017] Further description of the above technical solution is as follows:

[0018] The processing tank is fixedly connected with a water inlet pipe on the side away from the rotating assembly, and an atomizing nozzle is fixedly connected to the inside of the processing tank at one end of the water inlet pipe.

[0019] Further description of the above technical solution is as follows:

[0020] The plurality of connecting pipes are arranged and distributed outside the rotating rod.

[0021] The utility model has the advantages of:

[0022] 1. The utility model discloses a connecting pipe is rotated to the rotation of the rotation rod, promotes the upward movement of atomized wastewater of evaporation, avoids its accumulation in the treatment jar, guarantees the continuous, stable of evaporation process carries out, improves wastewater treatment efficiency, in the atomized wastewater of evaporation enters dust removal pipe, with the filtration function of filter core, can accurate interception dust and other solid impurities, thereby make the wastewater after being filtered can effectively carry out secondary utilization.

[0023] 2. The utility model discloses a handle is held, and the baffle is pulled outward, and then can drive filter core from installation groove and separates, realizes convenient disassembly and replacement. The maintenance difficulty is reduced, and the maintenance time is shortened, can guarantee that separation mechanism always keeps good filtration performance, reduces the equipment failure and processing effect decline of the problem such as filter core blockage or failure, ensures that the equipment long -term stable operation. DRAWINGS

[0024] Figure 1 A three-dimensional schematic view of a thermal power plant desulfurization wastewater evaporation tower is provided for the utility model;

[0025] Figure 2 A treatment jar structure schematic view of a thermal power plant desulfurization wastewater evaporation tower is provided for the utility model;

[0026] Figure 3 A dust removal pipe structure schematic view of a thermal power plant desulfurization wastewater evaporation tower is provided for the utility model.

[0027] Legend:

[0028] 1, treatment jar, 2, rotating assembly, 21, motor, 22, rotation rod, 23, connecting pipe, 3, fixed cylinder, 4, separation mechanism, 41, dust removal pipe, 42, installation groove, 43, filter core, 5, disassembly assembly, 51, baffle, 52, handle, 6, water inlet pipe, 7, atomizing nozzle, 8, heat exchanger, 9, discharge hole, 10, branch. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Reference Figure 1 And Figure 2The utility model provides a kind of power plant desulfurization wastewater evaporation tower of embodiment: a kind of power plant desulfurization wastewater evaporation tower, including processing jar 1, the processing of desulfurization wastewater has provided enclosed space.Processing jar 1 outside is provided with rotating assembly 2, processing jar 1 top is fixedly connected with fixed cylinder 3, fixed cylinder 3 inside is provided with separation mechanism 4, separation mechanism 4 is installed in rotating assembly 2 top;

[0031] Rotating assembly 2 includes motor 21, motor 21 is fixedly connected in processing jar 1 outside, motor 21 output end is fixedly connected with rotating rod 22, can provide reliable power for the rotation of rotating rod 22.Rotating rod 22 is rotatably connected in the inner wall of processing jar 1 away from motor 21 one end, to provide stable support point for rotating rod 22.Rotating rod 22 outside is fixedly connected with multiple connecting pipes 23, multiple connecting pipes 23 are distributed in the external of rotating rod 22, promote the water vapor and impurities formed by atomized wastewater to move upwards, avoid accumulation in processing jar 1 bottom or local area.

[0032] Referring to Figure 2 And Figure 3 Separation mechanism 4 includes dust removal pipe 41, dust removal pipe 41 top is fixedly connected in fixed cylinder 3 bottom, so that steam can gradually converge to the central dust removal pipe 41 in the process of ascending.Dust removal pipe 41 side wall is provided with mounting groove 42, mounting groove 42 is detachably connected with filter core 43 inside, to facilitate the installation, replacement and maintenance of filter core 43, ensure the long-term effectiveness of separation mechanism 4.Filter core 43 is provided with dismounting assembly 5 away from dust removal pipe 41 side, dismounting assembly 5 includes baffle 51, baffle 51 is fixedly connected on one side of filter core 43, baffle 51 inboard is engaged in processing jar 1 outside, baffle 51 outside is fixedly connected with handle 52, by handle 52 outside baffle 51, facilitate operator to exert external force when needing to replace filter core 43, filter core 43 is smoothly pulled out from mounting groove 42, realize the convenient dismounting operation.

[0033] Dust removal pipe 41 is fixedly connected in the inner top of processing jar 1 away from fixed cylinder 3 one end, steam rises from processing jar 1 bottom, after the filtration of dust removal pipe 41, pure steam can continue to enter fixed cylinder 3 upwards and finally be transported to external equipment through discharge hole 9, and then can be used twice.

[0034] Referring to Figure 2 Processing jar 1 is fixedly connected with water inlet pipe 6 away from rotating assembly 2 side, water inlet pipe 6 is used as the input channel of desulfurization wastewater, and stable connection ensures that wastewater can continuously and smoothly enter processing jar 1.Water inlet pipe 6 one end extends to processing jar 1 inside and is fixedly connected with atomizing nozzle 7, which atomizes the entering wastewater into fine particles, increasing the contact area of wastewater and hot air.Heat exchanger 8 is installed on the inner bottom of processing jar 1, which provides the required heat for the evaporation of wastewater in processing jar 1, and the stable installation position ensures that the heat can be uniformly transmitted to the wastewater and air in processing jar 1.

[0035] The fixed cylinder 3 is internally provided with 11, and the top of the fixed cylinder 3 is fixedly connected with a discharge hole 9, which is connected with an external device. As an outlet for delivering the treated pure steam to the external device, the fixed connection with the fixed cylinder 3 ensures the directionality and stability of the steam discharge, preventing steam leakage or poor discharge. The bottom of the treatment tank 1 is fixedly connected with a supporting leg 10, which provides a stable support structure for the treatment tank 1, enabling the treatment tank 1 to maintain a certain height on the ground or installation platform.

[0036] Working principle: first, the desulfurization wastewater generated by the thermal power plant enters the water inlet pipe 6, and then is sprayed out in the treatment tank 1 after being atomized by the atomizing nozzle 7, and then the heat exchanger 8 heats the treatment tank 1, so that the atomized wastewater gradually evaporates in the high-temperature environment. At the same time, under the action of the starting motor 21, the rotating rod 22 is driven to rotate, and the connecting pipe 23 outside the rotating rod 22 is also rotated, so that the evaporated atomized wastewater rises upward to avoid accumulation in the treatment tank 1;

[0037] Secondly, the steam rises, and the impurities in the steam enter the dust removal pipe 41. Through the filtration of the filter element 43, the dust and other solid impurities are intercepted by the filter element 43. When the filter element 43 needs to be replaced, hold the handle 52 and pull the baffle 51 outward. Since the baffle 51 is connected with the treatment tank 1, the filter element 43 can be separated from the installation groove 42 together with the baffle 51, which realizes convenient disassembly and replacement, thereby ensuring the continuous and effective filtration performance of the separation mechanism 4.

[0038] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A desulfurization wastewater drying tower for thermal power plants, comprising a treatment tank (1), characterized in that: The processing tank (1) is provided with a rotating assembly (2) on the outside, and a fixed cylinder (3) is fixedly connected to the top of the processing tank (1). A separation mechanism (4) is provided inside the fixed cylinder (3), and the separation mechanism (4) is installed on the top of the rotating assembly (2). The rotating assembly (2) includes a motor (21), which is fixedly connected to the outside of the processing tank (1). A rotating rod (22) is fixedly connected to the output end of the motor (21). The end of the rotating rod (22) away from the motor (21) is rotatably connected to the inner wall of the processing tank (1). Multiple connecting pipes (23) are fixedly connected to the outside of the rotating rod (22).

2. The desulfurization wastewater drying tower for thermal power plants according to claim 1, characterized in that: The separation mechanism (4) includes a dust removal pipe (41), the top of which is fixedly connected to the bottom of the fixed cylinder (3). The side wall of the dust removal pipe (41) is provided with an installation groove (42), and a filter element (43) is connected inside the installation groove (42) by disassembly. A disassembly assembly (5) is provided on the side of the filter element (43) away from the dust removal pipe (41).

3. The desulfurization wastewater drying tower for thermal power plants according to claim 2, characterized in that: The disassembly assembly (5) includes a baffle (51) which is fixedly connected to one side of the filter element (43). The inner side of the baffle (51) is engaged with the outside of the treatment tank (1). A handle (52) is fixedly connected to the outside of the baffle (51).

4. The desulfurization wastewater drying tower for thermal power plants according to claim 2, characterized in that: The end of the dust removal pipe (41) away from the fixed cylinder (3) is fixedly connected to the top of the processing tank (1).

5. The desulfurization wastewater drying tower for thermal power plants according to claim 1, characterized in that: The treatment tank (1) is fixedly connected to a water inlet pipe (6) on the side away from the rotating component (2), and one end of the water inlet pipe (6) extends into the inside of the treatment tank (1) and is fixedly connected to an atomizing nozzle (7).

6. The desulfurization wastewater drying tower for thermal power plants according to claim 1, characterized in that: A heat exchanger (8) is installed at the bottom of the processing tank (1), and an opening (11) is provided inside the fixed cylinder (3). A discharge hole (9) is fixedly connected to the top of the fixed cylinder (3), and the discharge hole (9) is connected to an external device.

7. The desulfurization wastewater drying tower for thermal power plants according to claim 1, characterized in that: The bottom of the processing tank (1) is fixedly connected to a support leg (10).

8. The desulfurization wastewater drying tower for thermal power plants according to claim 1, characterized in that: Multiple connecting pipes (23) are arranged in a pattern outside the rotating rod (22).

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