Desulfurization wastewater recovery treatment device

Abstract

The utility model relates to the technical field of desulfurization wastewater recovery treatment, and provides a desulfurization wastewater recovery treatment device which comprises a neutralization reaction tank, a sedimentation tank and a filter tank, a clarification tank is mounted on one side of the neutralization reaction tank, stirring mechanisms are mounted in the clarification tank and the neutralization reaction tank, the sedimentation tank is fixed at the bottom end of the neutralization reaction tank, and the filter tank is fixed at the bottom end of the neutralization reaction tank. A drain outlet is formed in the bottom end of one side of the sedimentation tank, a connecting pipe is arranged between the sedimentation tank and the clarification tank, a scraping mechanism is arranged in the sedimentation tank, and the filtering tank is fixed on one side of the sedimentation tank. The pH value detection sensor is arranged at the bottom end of one side in the filter tank and can detect the pH value of clear water in the filter tank, when the pH value does not reach the standard, the water pump and the return pipe are started to convey the clear water in the filter tank into the neutralization reaction tank, the purpose of secondary treatment of the clear water is achieved, the protective shell can protect the pH meter main body, and the pH value of the clear water in the filter tank can be detected by the pH value detection sensor. The pH meter main body is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurized wastewater recovery and treatment, and particularly relates to a desulfurized wastewater recovery and treatment device. Background Technique

[0002] With the continuous development of the environmental protection industry, the wet flue gas desulfurization technology of boilers has been greatly improved. A large amount of desulfurized wastewater is generated during the wet flue gas desulfurization process of boilers. The desulfurized wastewater contains substances such as suspended solids, supersaturated sulfites, and sulfates. The desulfurized wastewater cannot be directly discharged and needs to be treated.

[0003] The structure of the existing desulfurized wastewater recovery and treatment device is relatively simple, and there are deficiencies in use:

[0004] 1. When the desulfurized wastewater recovery and treatment device is in use, it is not convenient to detect the pH value of the treated clear water. When the pH value detection fails to meet the standard, it is not convenient to perform secondary treatment on the wastewater;

[0005] 2. When the desulfurized wastewater recovery and treatment device discharges sludge, the sludge is easily adhered to the inner wall of the sedimentation tank, and it is inconvenient to clean. Therefore, it is necessary to research and develop a desulfurized wastewater recovery and treatment device to solve the above problems. Content of the Utility Model

[0006] (I) Technical Problems to be Solved

[0007] The purpose of the utility model is to provide a desulfurized wastewater recovery and treatment device to solve the defect that the existing device is not convenient for secondary treatment of unqualified treated wastewater. (II) Content of the Utility Model

[0009] To solve the above technical problems, the utility model provides the following technical solution: A desulfurized wastewater recovery and treatment device includes a neutralization reaction tank, a sedimentation tank, and a filtration tank. A clarification tank is installed on one side of the neutralization reaction tank, and stirring mechanisms are installed inside both the clarification tank and the neutralization reaction tank. The sedimentation tank is fixed at the bottom end of the neutralization reaction tank. A sewage outlet is installed at the bottom end of one side of the sedimentation tank. A connecting pipe is provided between the sedimentation tank and the clarification tank. A scraping mechanism is arranged inside the sedimentation tank. The filtration tank is fixed on one side of the sedimentation tank. A filtration structure is arranged inside the filtration tank. A drain outlet is installed at the bottom end of one side of the filtration tank. A reflux structure is arranged on one side of the filtration tank. The reflux structure includes a water pump, a reflux pipe, a pH value detection sensor, a protective shell, and a pH meter main body. The water pump is installed on one side of the clarification tank. Reflux pipes are installed at the top and bottom ends of the water pump. The pH value detection sensor is arranged at the bottom end of the inner side of the filtration tank. The protective shell is installed on one side of the filtration tank. The pH meter main body is installed inside the protective shell.

[0010] Preferably, the scraping mechanism includes a servo motor, a bracket, a scraper, a movable block and a screw rod. The bracket is installed inside the sedimentation tank. A servo motor is installed on one side of the bracket, and a screw rod is installed on one side of the servo motor. The movable block is installed on the outer side of the screw rod, and the scraper is fixed to the bottom end of the movable block. The provided scraping mechanism facilitates the cleaning of the inner wall of the sedimentation tank.

[0011] Preferably, an internal thread is provided inside the movable block, and the movable block is threadedly connected to the screw rod. Through the setting of the threaded connection structure, it is convenient for the scraper to move.

[0012] Preferably, the filtering structure includes a fixed frame, an adsorption filler block, a fixed rod and a ferrule. The fixed frames are uniformly installed at the bottom end inside the filtering tank. An adsorption filler block is installed at the top end of the fixed frame. The fixed rods are arranged at both ends inside the adsorption filler block, and ferrules are installed on the outer sides of the fixed rods. The provided filtering structure can filter the clear water.

[0013] Preferably, the adsorption filler block is placed on the fixed frame, and the fixed rods are vertically centrosymmetrically distributed through the adsorption filler block. The symmetrically arranged fixed rods can improve the installation stability of the adsorption filler block.

[0014] Preferably, a threaded groove is provided inside the ferrule, and the ferrule is meshed with the fixed rod by threads. Through the setting of the ferrule and the fixed rod, it is convenient to disassemble and assemble the adsorption filler block.

[0015] Preferably, one end of the reflux pipe is connected to one end at the bottom of one side of the filtering tank, and the other end of the reflux pipe is connected to one side at the top end of the neutralization reaction tank.

[0016] (III) Beneficial effects

[0017] The desulfurized wastewater recovery and treatment device provided by the present utility model has the following advantages:

[0018] (1) Through the pH value detection sensor provided at the bottom end on one side inside the filtering tank, the pH value detection sensor can detect the pH value of the clear water in the filtering tank. When the detection is unqualified, the water pump is started, and the reflux pipe sends the clear water in the filtering tank to the neutralization reaction tank to achieve the purpose of secondary treatment of the clear water. The protective shell can protect the pH meter main body and avoid damage to the pH meter main body;

[0019] (2) Through the servo motor provided on one side of the sedimentation tank, when the servo motor is started, the screw rod rotates, and the movable block drives the scraper to move. During the movement of the scraper, the sludge on the inner wall of the sedimentation tank can be scraped off to achieve the purpose of cleaning the inner wall of the sedimentation tank;

[0020] (3) By means of the adsorption filler blocks arranged inside the filtration tank, the adsorption filler blocks can play a role in filtering the clear water, improving the treatment effect of the wastewater. Rotate the ferrule, remove the ferrule from the fixed rod, and take out the adsorption filler block to achieve the purpose of replacing it. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a front view sectional structure schematic diagram of the present invention;

[0023] Figure 2 It is a rear view structure schematic diagram of the present invention;

[0024] Figure 3 For the present invention Figure 1 Enlarged structure schematic diagram at A in;

[0025] Figure 4 It is a front view sectional structure schematic diagram of the scraping mechanism of the present invention;

[0026] Figure 5 It is a three-dimensional structure schematic diagram of the filtration structure of the present invention.

[0027] Explanation of the reference numerals in the drawings: 1, neutralization reaction tank; 2, scraping mechanism; 201, servo motor; 202, bracket; 203, scraper; 204, movable block; 205, screw; 3, sewage outlet; 4, sedimentation tank; 5, filtration tank; 6, filtration structure; 601, fixed frame; 602, adsorption filler block; 603, fixed rod; 604, ferrule; 7, drain outlet; 8, reflux structure; 801, water pump; 802, reflux pipe; 803, pH value detection sensor; 804, protective shell; 805, pH meter main body; 9, clarification tank; 10, stirring mechanism; 11, connecting pipe. Detailed Embodiment

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Embodiment

[0031] Please refer to Figures 1-5 , a desulfurized wastewater recovery and treatment device provided by the present utility model includes a neutralization reaction tank 1, a sedimentation tank 4, and a filtration tank 5. A clarification tank 9 is installed on one side of the neutralization reaction tank 1, and stirring mechanisms 10 are installed inside both the clarification tank 9 and the neutralization reaction tank 1. The sedimentation tank 4 is fixed at the bottom end of the neutralization reaction tank 1. A sewage outlet 3 is installed at the bottom end on one side of the sedimentation tank 4. A connecting pipe 11 is provided between the sedimentation tank 4 and the clarification tank 9. A scraping mechanism 2 is arranged inside the sedimentation tank 4. The scraping mechanism 2 includes a servo motor 201, a bracket 202, a scraper 203, a movable block 204, and a screw rod 205. The bracket 202 is installed inside the sedimentation tank 4. A servo motor 201 is installed on one side of the bracket 202, and a screw rod 205 is installed on one side of the servo motor 201. The movable block 204 is installed on the outer side of the screw rod 205. The scraper 203 is fixed at the bottom end of the movable block 204. Internal threads are provided inside the movable block 204, and the movable block 204 is threadedly connected with the screw rod 205.

[0032] The filtration tank 5 is fixed on one side of the sedimentation tank 4. A filtration structure 6 is arranged inside the filtration tank 5. The filtration structure 6 includes a fixing frame 601, an adsorption filler block 602, fixing rods 603, and a ferrule 604. The fixing frames 601 are evenly installed at the bottom end inside the filtration tank 5. The adsorption filler blocks 602 are installed at the top ends of the fixing frames 601. The fixing rods 603 are arranged at both ends inside the adsorption filler blocks 602. Ferrules 604 are installed on the outer sides of the fixing rods 603. The adsorption filler blocks 602 are placed on the fixing frames 601. The fixing rods 603 are vertically symmetrically distributed through the adsorption filler blocks 602. Thread grooves are formed inside the ferrules 604, and the ferrules 604 are meshed with the fixing rods 603 through threads.

[0033] A drain port 7 is installed at the bottom end of one side of the filtration tank 5. A reflux structure 8 is arranged on one side of the filtration tank 5. The reflux structure 8 includes a water pump 801, a reflux pipe 802, a pH value detection sensor 803, a protective shell 804 and a pH meter main body 805. The water pump 801 is installed on one side of the clarification tank 9. The top end and the bottom end of the water pump 801 are both installed with the reflux pipe 802. The pH value detection sensor 803 is arranged at the bottom end of the inner side of the filtration tank 5. The protective shell 804 is installed on one side of the filtration tank 5. The pH meter main body 805 is installed inside the protective shell 804. One end of the reflux pipe 802 is connected to one end of the bottom of one side of the filtration tank 5, and the other end of the reflux pipe 802 is connected to one side of the top end of the neutralization reaction tank 1.

[0034] In this embodiment, during use, the wastewater enters the neutralization reaction tank 1 from the top end of one side of the neutralization reaction tank 1. Lime slurry is added to the neutralization reaction tank 1 and continuously stirred by the stirring mechanism 10. The neutralized wastewater enters the sedimentation tank 4. A heavy metal sedimentation agent is added to the sedimentation tank 4. Sludge and other flocculants remain in the sedimentation tank 4 and are discharged through the sewage outlet 3. The clear water enters the clarification tank 9 through the connecting pipe 11. A flocculant is added to the clarification tank 9 to make them coagulate into large particles and settle down. The clarified water is discharged into the filtration tank 5. The clear water can be filtered through the adsorption filler block 602. The pH value of the clear water can be detected by the pH value detection sensor 803. When the detection is not up to standard, the water pump 801 is started, and the reflux pipe 802 sends the clear water in the filtration tank 5 to the neutralization reaction tank 1 for re-treatment. When the clear water meets the standard, it is discharged through the drain port 7.

[0035] When the adsorption filler block 602 needs to be replaced, rotate the ferrule 604. The ferrule 604 moves away from the adsorption filler block 602, and the ferrule 604 is removed from the fixed rod 603 to release the fixing restriction on the adsorption filler block 602, and the adsorption filler block 602 is taken out for replacement.

[0036] Start the servo motor 201, the screw 205 rotates. Due to the threaded connection, the movable block 204 drives the scraper 203 to move. During the movement of the scraper 203, the sludge and other flocculants on the inner wall of the sedimentation tank 4 can be cleaned off to prevent the sludge and other flocculants from adhering to the inner wall of the sedimentation tank 4.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A desulfurization wastewater recovery and treatment device, comprising a neutralization reaction tank (1), a sedimentation tank (4) and a filtration tank (5), characterized in that: A clarification tank (9) is installed on one side of the neutralization reaction tank (1), and a stirring mechanism (10) is installed inside the clarification tank (9) and the neutralization reaction tank (1); The sedimentation tank (4) is fixed at the bottom end of the neutralization reaction tank (1), a sewage outlet (3) is installed at the bottom end of one side of the sedimentation tank (4), a connecting pipe (11) is provided between the sedimentation tank (4) and the clarification tank (9), and a scraping mechanism (2) is provided inside the sedimentation tank (4); The filter tank (5) is fixed on one side of the sedimentation tank (4); a filter structure (6) is arranged inside the filter tank (5); a drain outlet (7) is installed at the bottom end of one side of the filter tank (5); a reflux structure (8) is arranged on one side of the filter tank (5); the reflux structure (8) comprises a water pump (801), a reflux pipe (802), a pH value detection sensor (803), a protective shell (804) and a pH meter body (805); the water pump (801) is installed on one side of the clarification tank (9); the top and bottom ends of the water pump (801) are both installed with a reflux pipe (802); the pH value detection sensor (803) is arranged at the bottom end of one side inside the filter tank (5); the protective shell (804) is installed on one side of the filter tank (5); and the pH meter body (805) is installed inside the protective shell (804).

2. A desulfurization wastewater recovery and treatment device according to claim 1, characterized in that: The scraper mechanism (2) comprises a servo motor (201), a bracket (202), a scraper (203), a movable block (204) and a screw (205); the bracket (202) is installed inside a sedimentation tank (4); the servo motor (201) is installed on one side of the bracket (202); and the screw (205) is installed on one side of the servo motor (201); the movable block (204) is installed on the outside of the screw (205); and the scraper (203) is fixed to the bottom end of the movable block (204).

3. A desulfurization wastewater recovery and treatment device according to claim 2, characterized in that: The movable block (204) is provided with an internal thread inside, and the movable block (204) and the screw rod (205) are threadedly connected.

4. A desulfurization wastewater recovery and treatment device according to claim 1, characterized in that: The filtering structure (6) comprises a fixing frame (601), an adsorption filler block (602), a fixing rod (603) and a ferrule (604); the fixing frame (601) is evenly installed at the bottom end inside the filtering pool (5); the adsorption filler block (602) is installed at the top end of the fixing frame (601); the fixing rods (603) are arranged at both ends inside the adsorption filler block (602); and the outer sides of the fixing rods (603) are installed with ferrules (604).

5. A desulfurization wastewater recovery and treatment device according to claim 4, characterized in that: The adsorption filler block (602) is placed on the fixing frame (601), and the fixing rods (603) are distributed vertically and centrally symmetrically through the adsorption filler block (602).

6. A desulfurization wastewater recovery and treatment device according to claim 4, characterized in that: A thread groove is provided inside the clamping sleeve (604), and the clamping sleeve (604) is meshed with the fixing rod (603) through a thread.

7. A desulfurization wastewater recovery and treatment device according to claim 1, characterized in that: One end of the reflux pipe (802) is connected to one end of the bottom of one side of the filtration tank (5), and the other end of the reflux pipe (802) is connected to one side of the top of the neutralization reaction tank (1).

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