A wastewater desulfurization device

Abstract

The present invention provides a wastewater desulfurization device, which relates to the technical field of sewage treatment, and comprises: a storage tank; a reaction tank A is arranged at the middle position of the top front end of the storage tank, an input pipe is arranged at the front end of the reaction tank A, a lifting cover is arranged at the top position of the reaction tank A, an addition pipe is arranged at the upper position of the rear end of the reaction tank A, a control frame is fixedly connected to the middle position of the bottom of the lifting cover, and a motor A is fixedly connected to the side position of the control frame. Three mesh plates will perform upside-down mixing of the mixture of lime slurry and wastewater, disrupting the mixing fan to pull the mixed liquid of lime slurry and wastewater to perform regular mixing, so that the mixing period is more sufficient. The problem that in the mixing process of lime slurry and wastewater, the mixing equipment is prone to inertial traction during mixing, which leads to a long time-consuming process of mixing lime slurry and wastewater is solved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a wastewater desulfurization device. Background Art

[0002] Wastewater desulfurization mainly refers to the waste gas produced in the industrial production process, especially the combustion of fuels such as coal and oil, which contains a large amount of harmful gases such as SO2 and NOx. These gases will not only cause air pollution, but also convert into acidic substances such as sulfuric acid and nitric acid in the air, further leading to the formation of acid rain, and causing serious impacts on the ecological environment and human health. Therefore, in order to reduce the emission of these harmful substances, the flue gas needs to be desulfurized to reduce the emission of products such as sulfuric acid and nitric acid. Desulfurization wastewater is the wastewater generated in this process. It contains heavy metals, sulfates and pollutants. If it is directly discharged without treatment, it will cause serious harm to the environment and human health.

[0003] Application No. CN202410458218.5 The invention discloses a desulfurization wastewater evaporation device, which belongs to the field of sewage treatment technology, including an evaporation shell, a semi-cylinder, a discharge shell and an L-shaped scraper. The semi-cylinder is fixedly arranged inside the evaporation shell, and a main shaft is installed in the semi-cylinder, and a screw is installed on the main shaft. The discharge shell is fixedly arranged at one end of the evaporation shell and is connected to the evaporation shell. A plurality of L-shaped scrapers are installed on the main shaft, and a vibration filter plate is elastically and slidably installed inside the L-shaped scraper. The invention arranges a plurality of rotatable L-shaped scrapers and a main shaft linked to the L-shaped scrapers in the evaporation shell, and a discharge shell that can movably discharge crystals is arranged at one end of the evaporation shell, thereby ensuring that the crystals are continuously discharged under negative pressure in the cavity of the evaporation shell, effectively reducing the crystals remaining in the evaporation container, thereby improving the evaporation efficiency.

[0004] Based on the search of the above patents and the application of existing wastewater desulfurization equipment, it is understood that when treating desulfurized wastewater, lime slurry needs to be added for mixing to increase the pH value of the wastewater. However, during the mixing process of lime slurry and wastewater, inertial traction is easily caused during the mixing by the stirring equipment, resulting in a long mixing process of lime slurry and wastewater.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a wastewater desulfurization device is provided to achieve a more practical purpose. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a wastewater desulfurization device to solve the problem that when the existing desulfurization wastewater is treated, lime slurry needs to be added for mixing treatment to increase the pH value of the wastewater. However, during the mixing process of the lime slurry and the wastewater, the stirring equipment is prone to inertial traction during mixing, which causes the mixing process of the lime slurry and the wastewater to take a long time.

[0007] The present invention provides a wastewater desulfurization device, which specifically includes: a storage tank; a reaction tank A is arranged at a middle position of the top front end of the storage tank, an input pipe is arranged at the front end of the reaction tank A, a lifting cover is arranged at the top position of the reaction tank A, an addition pipe is arranged at the upper position of the rear end of the reaction tank A, a control frame is fixedly connected to the middle position of the bottom of the lifting cover, a motor A is fixedly connected to the side position of the control frame, a U-shaped part is rotatably connected to the inner position of the control frame, the left side position of the U-shaped part is fixedly connected to the rotating shaft position of the motor A, the middle position of the U-shaped part is rotatably connected to the upper position of a transfer plate, the transfer plate is located in the inner position of the control frame, the bottom position of the transfer plate is rotatably connected to the top position of a sliding part, the sliding part is slidably connected to the lower inner position of the control frame, the control frame is located in the upper inner position of the reaction tank A, three cylindrical mesh plates are fixed to the sliding part, the distance between each two adjacent mesh plates is the same, and the three mesh plates are all located in the inner position of the reaction tank A.

[0008] Furthermore, a mixing rack is fixedly connected to the lower interior of the reaction tank A, a motor B is fixedly connected to the lower interior of the mixing rack, a mixing fan is fixedly connected to the upper end shaft of the motor B, and the mixing fan is located in the middle of the upper interior of the mixing rack.

[0009] Furthermore, a collecting trough is provided at the rear end position of the top of the storage tank, and a material trough is opened at the front end position of the storage tank. A reaction tank B is fixedly connected to the middle position of the top of the storage tank. The reaction tank B is located directly behind the reaction tank A. A material transfer pipe is fixedly connected to the lower position at the rear end of the reaction tank A.

[0010] Furthermore, a bidirectional conveyor is provided inside the material transfer pipe, a discharge pipe is provided below the material transfer pipe, the discharge pipe runs through the material trough of the storage tank, and the rear end of the material transfer pipe is connected to the lower front end of the reaction tank B.

[0011] Furthermore, a rotating fan is provided at the lower interior position of the reaction tank B, the top middle position of the rotating fan is fixedly connected to the bottom position of the telescopic member, the telescopic member is located at the middle position at the lower interior position of the reaction tank B, a circular baffle is provided at the top position of the telescopic member, and a sealing ring is provided at the upper end position of the circular baffle of the telescopic member.

[0012] Furthermore, a separation cylinder is fixedly connected to the middle position of the interior of the reaction tank B, and a conical through groove which is wide at the top and narrow at the bottom is opened in the middle position of the separation cylinder. When the telescopic member is in an extended state, the circular baffle sealing ring of the telescopic member fits the bottom position of the separation cylinder.

[0013] Furthermore, a transfer pipe is installed at the upper middle position of the rear end of the reaction tank B, and the transfer pipe is located above the rear end of the separation cylinder. A flocculation pipe is fixedly connected to the upper position of the rear end of the reaction tank B, and the flocculation pipe is located directly above the transfer pipe.

[0014] Furthermore, the lower rear end of the reaction tank A is fixedly connected to the front end of the Z-shaped pump tube, and the rear end of the Z-shaped pump tube is fixedly connected to the upper front end of the reaction tank B.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The rotating shaft of motor B will drive the mixing fan to rotate, and the mixing fan will accelerate the mixing of lime slurry and wastewater, and the lime slurry and wastewater will be rotated and mixed.

[0017] 2. The three mesh plates of the device will mix the mixture of lime slurry and wastewater in an upside-down manner, disrupting the mixing fan to pull the mixed liquid of lime slurry and wastewater to perform regular mixing effect, making the mixing period more sufficient and improving the mixing efficiency.

[0018] 3. This device can transfer the initially mixed liquid to the internal position of the reaction tank B through the Z-shaped pump tube. The impurities deposited at the bottom of the initially mixed liquid can be transferred from the discharge pipe to the material tank at the front end of the storage tank through the front end of the bidirectional conveyor of the material transfer pipe. The material tank of the storage tank is placed on a collecting device for collection, which is convenient for the storage and collection of the deposited impurities and the subsequent transfer and processing procedures.

[0019] 4. When entering into reaction tank B for flocculation reaction, the telescopic part is in an extended state, and the circular baffle sealing ring of the telescopic part is in close contact with the bottom position of the separation cylinder. After the flocculants and floating objects in the wastewater are settled, the upper layer of the wastewater treatment is transferred to the rear end collection tank of the storage tank through the transfer pipe for storage, which plays the effect of preliminary separation and storage of the wastewater treatment.

[0020] 5. When the rotary fan is in the rotating working state, the flocculants and settled floating objects at the bottom of the reaction tank B are centrifugally thrown away to the rear end of the material transfer pipe, and transferred from the rear end of the two-way conveyor of the material transfer pipe to the discharge pipe for discharge and collection. The flocculants and settled floating objects in the reaction tank B are discharged to the outside for the next use.

[0021] 6. Combined with the design of the material transfer pipe, the impurity sediment mixed in the reaction tank A and the flocculants and settled floating objects at the bottom of the reaction tank B can be transferred, and the waste in multiple locations can be transported and transferred through one device, which reduces the equipment cost and facilitates the collection of waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0023] In the attached picture:

[0024] Figure 1 It shows a schematic diagram of a half-section left view of the structure of a wastewater desulfurization device according to an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of a half-section side view of the structure of a wastewater desulfurization device according to an embodiment of the present invention is shown;

[0026] Figure 3 It shows a schematic diagram of a half-section left view of the assembly structure of a reaction tank A, a material transfer pipe, a Z-shaped pump pipe and a reaction tank B according to an embodiment of the present invention;

[0027] Figure 4 It shows a schematic diagram of a half-section side view of the assembly structure of a reaction tank A, a material transfer pipe, a Z-shaped pump pipe and a reaction tank B according to an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the side view structure of some parts in a reaction tank A according to an embodiment of the present invention is shown;

[0029] Figure 6 The overall side view of the material transfer pipe according to an embodiment of the present invention is shown;

[0030] Figure 7 The schematic diagram of the overall half-section left view of the reaction tank B according to an embodiment of the present invention is shown;

[0031] Figure 8 A schematic diagram of the overall half-section side view of a reaction tank B according to an embodiment of the present invention is shown.

[0032] Reference numerals list

[0033] 1. Reserve tank; 2. Reaction tank A; 201. Input pipe; 202. Lifting cover; 203. Adding pipe; 204. Control frame; 205. Motor A; 206. U-shaped part; 207. Transfer plate; 208. Sliding part; 209. Screen plate; 210. Mixing frame; 211. Motor B; 212. Mixing fan; 3. Material transfer pipe; 301. Bidirectional conveyor; 302. Discharge pipe; 4. Z-shaped pump pipe; 5. Reaction tank B; 501. Rotating fan; 502. Telescopic part; 503. Separation cylinder; 504. Transfer pipe; 505. Flocculation tube. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0035] Embodiment 1: As shown in the attached Figure 1 To Attachment Figure 8 As shown:

[0036] The present invention provides a wastewater desulfurization device, comprising: a storage tank 1; a reaction tank A2 is arranged at the middle position of the top front end of the storage tank 1, an input pipe 201 is arranged at the front end of the reaction tank A2, a lifting cover plate 202 is arranged at the top position of the reaction tank A2, an addition pipe 203 is arranged at the upper position of the rear end of the reaction tank A2, a control frame 204 is fixedly connected to the middle position of the bottom of the lifting cover plate 202, a motor A205 is fixedly connected to the side position of the control frame 204, a U-shaped piece 206 is rotatably connected to the inner position of the control frame 204, and the left position of the U-shaped piece 206 is connected to the motor The rotating shaft position of A205 is fixedly connected, the middle position of the U-shaped member 206 is rotationally connected to the upper position of the transfer plate 207, the transfer plate 207 is located inside the control frame 204, the bottom position of the transfer plate 207 is rotationally connected to the top position of the sliding member 208, the sliding member 208 is slidingly connected to the lower position inside the control frame 204, the control frame 204 is located inside the upper position of the reaction tank A2, the sliding member 208 is fixed with three cylindrical mesh plates 209, the distance between each two adjacent mesh plates 209 is the same, and the three mesh plates 209 are all located inside the reaction tank A2.

[0037] Among them, a mixing rack 210 is fixedly connected to the lower inner position of the reaction tank A2, a motor B211 is fixedly connected to the lower inner position of the mixing rack 210, a mixing fan 212 is fixedly connected to the upper end shaft of the motor B211, and the mixing fan 212 is located in the middle position of the upper inner end of the mixing rack 210.

[0038] Among them, a collecting trough is arranged at the rear end position of the top of the storage tank 1, and a material trough is opened at the front end position of the storage tank 1. A reaction tank B5 is fixedly connected to the middle position of the top of the storage tank 1. The reaction tank B5 is located directly behind the reaction tank A2. A material transfer pipe 3 is fixedly connected to the lower position at the rear end of the reaction tank A2.

[0039] Among them, a two-way conveyor 301 is arranged inside the material transfer pipe 3, and a discharge pipe 302 is arranged below the material transfer pipe 3. The discharge pipe 302 runs through the material trough of the storage tank 1, and the rear end of the material transfer pipe 3 is connected with the front end and lower part of the reaction tank B5. Combined with the design of the material transfer pipe 3, the impurity precipitate mixed in the reaction tank A2 and the flocculants and settled floating objects at the bottom of the reaction tank B5 can be transferred, and waste in multiple locations can be transported and transferred by one device, which reduces equipment costs and facilitates waste collection.

[0040] Among them, a rotating fan 501 is arranged at the lower inner position of the reaction tank B5, and the top middle position of the rotating fan 501 is fixedly connected to the bottom position of the telescopic member 502. The telescopic member 502 is located in the middle position of the lower inner part of the reaction tank B5. A circular baffle is arranged at the top position of the telescopic member 502, and a sealing ring is arranged at the upper end position of the circular baffle of the telescopic member 502. A separation cylinder 503 is fixedly connected to the middle inner position of the reaction tank B5, and a conical through groove which is wide at the top and narrow at the bottom is provided in the middle position of the separation cylinder 503. When the telescopic member 502 is in an extended state, the circular baffle sealing ring position of the telescopic member 502 fits the bottom position of the separation cylinder 503.

[0041] Among them, a transfer pipe 504 is installed at the upper middle position of the rear end of the reaction tank B5, and the transfer pipe 504 is located above the rear end of the separation cylinder 503. A flocculation tube 505 is fixedly connected to the upper position of the rear end of the reaction tank B5, and the front end position of the Z-shaped pump tube 4 is fixedly connected. The rear end position of the Z-shaped pump tube 4 is fixedly connected to the upper position of the front end of the reaction tank B5.

[0042] When in use: first, the wastewater to be desulfurized is transferred to the inner position of the reaction tank A2 through the input pipe 201, and then the lime slurry is transported to the inner position of the reaction tank A2 through the addition pipe 203. At this time, the lime slurry is contacted and mixed with the wastewater, and the motor B211 is started. The shaft of the motor B211 will drive the mixing fan 212 to rotate. The mixing fan 212 accelerates the mixing of the lime slurry and the wastewater. The lime slurry and the wastewater are rotated and mixed. During this period, the motor A205 is started, and the motor A205 will drive the U-shaped member 206 to rotate. The cooperation between the shaped member 206 and the transfer plate 207 enables the sliding member 208 to slide back and forth at the lower position inside the control frame 204, and the three mesh plates 209 set on the sliding member 208 will move up and down in a reciprocating manner inside the reaction tank A2. The three mesh plates 209 will mix the mixture of lime slurry and wastewater in an upside-down manner, disrupting the mixing fan 212 to pull the mixed liquid of lime slurry and wastewater to perform a regular mixing effect, making the mixing period more sufficient, and improving the mixing efficiency, accelerating the pH value of the wastewater mixture from 5.5 to above 9.0.

[0043] Embodiment 2: When the mixed wastewater inside the reaction tank A2 is fully mixed and reaches a pH value of 9.0, the preliminary mixed liquid can be transferred to the internal position of the reaction tank B5 through the Z-shaped pump tube 4, and the impurities deposited at the bottom of the preliminary mixed liquid can be transferred from the discharge pipe 302 to the material trough at the front end of the storage tank 1 through the front end position of the bidirectional conveyor 301 of the material transfer pipe 3. The material trough of the storage tank 1 is placed on a collecting device for collection.

[0044] The mixed liquid entering the reaction tank B5 can be added with a certain proportion of flocculant aluminum ferric sulfate through the flocculation tube 505, so that the liquid suspended matter and colloidal matter preliminarily mixed in the reaction tank B5 are condensed into large particles for deposition. At the same time, cationic polymer electrolyte is added through the flocculation tube 505 as a coagulant to reduce the surface tension of the flocculated particles and strengthen the growth of the particles, further promote the precipitation reaction on the hydroxide and sulfide sides, make the floccules larger, and at the same time, the floating objects in the wastewater are also settled;

[0045] In addition, during the flocculation reaction in the reaction tank B5, the telescopic member 502 is in an extended state, and the circular baffle sealing ring of the telescopic member 502 is in contact with the bottom of the separation cylinder 503. After the flocculants and floating objects in the wastewater are settled, the upper layer of the wastewater after treatment is transferred to the rear end collection tank of the storage tank 1 through the transfer pipe 504 for storage.

[0046] When only flocculants and settled floating objects are left after the wastewater above the separation cylinder 503 is transferred, the telescopic member 502 is contracted so that the circular baffle of the telescopic member 502 is out of contact with the bottom of the separation cylinder 503, and the flocculants and settled floating objects pass through the through groove of the separation cylinder 503 and enter the lower part of the interior of the reaction tank B5. When the rotating fan 501 is in a rotating working state, the flocculants and settled floating objects in the lower part of the reaction tank B5 are centrifugally thrown away to the rear end of the material transfer pipe 3, and are transferred from the rear end of the bidirectional conveyor 301 of the material transfer pipe 3 to the discharge pipe 302 for discharge and collection.

[0047] The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A wastewater desulfurization device, comprising: A storage tank (1); a reaction tank A (2) is arranged at the middle position of the top front end of the storage tank (1); an input pipe (201) is arranged at the front end of the reaction tank A (2); a lifting cover plate (202) is arranged at the top position of the reaction tank A (2); the feature is that an addition pipe (203) is arranged at the upper position of the rear end of the reaction tank A (2); a control frame (204) is fixedly connected to the middle position of the bottom of the lifting cover plate (202); a motor A (205) is fixedly connected to the side position of the control frame (204); a U-shaped piece (206) is rotatably connected to the inner position of the control frame (204); the left side position of the U-shaped piece (206) is fixedly connected to the rotating shaft position of the motor A (205); the middle position of the U-shaped piece (206) is rotatably connected to the upper position of a transmission plate (207); the transmission plate (207) is located on the control frame. (204) internal position, the bottom position of the transfer plate (207) is rotatably connected to the top position of the sliding member (208), the sliding member (208) is slidably connected to the internal lower position of the control frame (204), the control frame (204) is located in the internal upper position of the reaction tank A (2), the sliding member (208) is fixed with three cylindrical mesh plates (209), the spacing between every two adjacent mesh plates (209) is the same, and the three mesh plates (209) are all located in the internal position of the reaction tank A (2); the internal lower position of the reaction tank A (2) is fixedly connected with a mixing frame (210), the internal lower position of the mixing frame (210) is fixedly connected with a motor B (211), the upper end rotating shaft of the motor B (211) is fixedly connected with a mixing fan (212), and the mixing fan (212) is located in the middle position of the internal upper end of the mixing frame (210); A collecting tank is provided at the rear end of the top of the storage tank (1), and a material tank is provided at the front end of the storage tank (1). A reaction tank B (5) is fixedly connected to the middle of the top of the storage tank (1), and the reaction tank B (5) is located directly behind the reaction tank A (2). A material transfer pipe (3) is fixedly connected to the lower rear end of the reaction tank A (2); A bidirectional conveyor (301) is provided inside the material transfer pipe (3), a discharge pipe (302) is provided below the material transfer pipe (3), the discharge pipe (302) penetrates the material tank of the storage tank (1), and the rear end of the material transfer pipe (3) is connected to the lower front end of the reaction tank B (5); A rotating fan (501) is arranged at the lower part of the reaction tank B (5); the middle part of the top of the rotating fan (501) is fixedly connected to the bottom part of the telescopic member (502); the telescopic member (502) is located at the middle part of the lower part of the reaction tank B (5); a circular baffle is arranged at the top part of the telescopic member (502); and a sealing ring is arranged at the upper end part of the circular baffle of the telescopic member (502); A separation cylinder (503) is fixedly connected to the middle position of the interior of the reaction tank B (5), and a tapered through groove that is wider at the top and narrower at the bottom is opened in the middle position of the separation cylinder (503). When the telescopic member (502) is in an extended state, the circular baffle sealing ring of the telescopic member (502) is in contact with the bottom position of the separation cylinder (503).

2. A wastewater desulfurization device as claimed in claim 1, characterized in that: A transfer pipe (504) is installed at the upper middle position of the rear end of the reaction tank B (5), and the transfer pipe (504) is located at the upper rear end of the separation cylinder (503). A flocculation tube (505) is fixedly connected to the upper rear end of the reaction tank B (5), and the flocculation tube (505) is located directly above the transfer pipe (504).

3. A wastewater desulfurization device as claimed in claim 1, characterized in that: The lower rear end of the reaction tank A (2) is fixedly connected to the front end of the Z-shaped pump tube (4), and the rear end of the Z-shaped pump tube (4) is fixedly connected to the upper front end of the reaction tank B (5).

Images