Flue gas treatment equipment for sludge drying

Abstract

The utility model discloses flue gas treatment equipment for sludge drying, which comprises a treatment tank, a tank cover is clamped on the top surface of the treatment tank, a servo motor is fixedly arranged in the middle of the top surface of the tank cover, and the output end of the servo motor penetrates through the tank cover and is fixedly provided with a mixing mechanism; flue gas conveying mechanisms are fixedly arranged on the periphery of the top face of the tank cover, and the tops of the flue gas conveying mechanisms communicate with a gas conveying ring pipe. According to the flue gas treatment equipment for sludge drying, through the arrangement of the flue gas conveying mechanisms, the gas inlet mechanism absorbs flue gas in the sludge drying equipment, then the flue gas is conveyed into the four groups of flue gas conveying mechanisms through the gas conveying ring pipe, the flue gas can be uniformly distributed in the treatment tank through the four groups of flue gas conveying mechanisms, and a Venturi tube is beneficial to accelerating the flow velocity of the flue gas; therefore, the flue gas can be in good contact with a treatment solvent (such as a sodium hydroxide solution and a calcium hydroxide solution) in the treatment tank, and the flue gas treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of sludge drying technology, specifically to a flue gas treatment device for sludge drying. Background Technology

[0002] Even after mechanical dewatering, the sludge still has a moisture content of over 78%. Sludge thermal drying can further remove moisture from the dewatered sludge and reduce its volume through heat transfer between the sludge and the heat medium. However, sludge drying generates a large amount of harmful flue gas, which requires treatment.

[0003] The flue gas treatment equipment for sludge drying in wastewater treatment plants disclosed in announcement number CN212396306U has the following beneficial effects: when the power motor is turned on, the power motor drives the transmission shaft and stirring rod to rotate through the reducer, which stirs the adsorbent liquid in the working chamber of the flue gas treatment chamber, so that the flue gas and the adsorbent liquid are fully combined, thereby improving the purification efficiency and improving the practicality.

[0004] However, the flue gas treatment equipment for sludge drying at this wastewater treatment plant has the following disadvantages: it is not convenient to uniformly transport the flue gas generated from sludge drying into the flue gas treatment chamber, and the contact between the flue gas and the treatment solvent is insufficient, thus affecting the treatment effect. Utility Model Content

[0005] The technical problem to be solved by this utility model is as follows: it is not convenient to uniformly transport the flue gas generated by sludge drying into the flue gas treatment chamber, and the flue gas has insufficient contact with the treatment solvent, thus affecting the treatment effect.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A flue gas treatment device for sludge drying includes a treatment tank. A tank cover is snapped onto the top surface of the treatment tank. A servo motor is fixedly installed in the middle of the top surface of the tank cover. A mixing mechanism is fixedly installed through the output end of the servo motor through the tank cover. Flue gas conveying mechanisms are fixedly installed around the top surface of the tank cover. A gas conveying ring pipe is connected to the top of the gas conveying mechanism. An air inlet mechanism is connected to one side of the outer surface of the gas conveying ring pipe.

[0008] As a further embodiment of this utility model: the mixing mechanism includes an auger rod and a stirring rod. The top of the auger rod is fixedly connected to the output end of the servo motor. The stirring rod is in two sets and is symmetrically arranged on the top of the auger rod surface. The stirring rod and the auger rod are used to mix the flue gas with the treatment solvent.

[0009] As a further embodiment of this utility model: the flue gas conveying mechanism includes an extended gas conveying pipe and a venturi tube. The extended gas conveying pipe is fixedly installed around the top surface of the tank cover, and the venturi tube is fixedly installed at the bottom of the extended gas conveying pipe. The venturi tube is used to accelerate the injection of flue gas into the bottom of the treatment tank.

[0010] As a further embodiment of this utility model: the air intake mechanism includes an air intake pipe and a suction fan. The air intake pipe is connected to the outer surface of the air delivery ring pipe, and the suction fan is connected to one end of the air intake pipe. The suction fan is used to draw in the flue gas inside the sludge drying equipment.

[0011] As a further embodiment of this utility model: a drain pipe is provided through the bottom of the outer surface of the treatment tank, and a valve is fixedly installed on the surface of the drain pipe to control the opening and closing of the drain pipe.

[0012] As a further embodiment of this utility model: an exhaust pipe is fixedly provided on the top surface of the can cover away from the air intake mechanism, and the bottom of the exhaust pipe is connected to the treatment tank. The exhaust pipe is used to discharge the treated gas.

[0013] As a further embodiment of this utility model: the number of flue gas conveying mechanisms is four sets, and the four sets of flue gas conveying mechanisms are arranged in a circular array. The flue gas conveying mechanisms are used to uniformly convey flue gas into the treatment tank.

[0014] The beneficial effects of this utility model are:

[0015] The flue gas conveying mechanism absorbs the flue gas from the sludge drying equipment and then transports it through a gas conveying ring pipe to four sets of flue gas conveying mechanisms. These four mechanisms ensure that the flue gas is evenly distributed within the treatment tank. The Venturi tubes accelerate the flue gas flow rate, allowing the flue gas to effectively contact the treatment solvents (such as sodium hydroxide solution and calcium hydroxide solution) within the treatment tank, thus improving the treatment efficiency. The mixing mechanism, connected to an external power source, drives the auger and stirring rods to rotate. These components thoroughly and evenly mix the treatment solvents and flue gas, resulting in more complete flue gas treatment and improved treatment efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the flue gas conveying mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the gas transmission ring pipe structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the hybrid mechanism structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the processing tank structure of this utility model.

[0023] In the diagram: 1. Processing tank; 2. Tank lid; 3. Servo motor; 4. Mixing mechanism; 401. Screw rod; 402. Stirring rod; 5. Flue gas conveying mechanism; 501. Extended gas delivery pipe; 502. Venturi tube; 6. Gas delivery ring pipe; 7. Inlet mechanism; 701. Inlet pipe; 702. Fan; 8. Drain pipe; 9. Exhaust pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-6 As shown, a flue gas treatment device for sludge drying includes a treatment tank 1. A tank cover 2 is snapped onto the top surface of the treatment tank 1. A servo motor 3 is fixedly installed in the middle of the top surface of the tank cover 2. A mixing mechanism 4 is fixedly installed through the output end of the servo motor 3 through the tank cover 2. Through the setting of the mixing mechanism 4, an external power supply is connected. The servo motor 3 drives the auger rod 401 and the stirring rod 402 to rotate. The auger rod 401 and the stirring rod 402 fully and evenly mix and stir the treatment solvent and flue gas, so that the flue gas treatment is more complete and the flue gas treatment efficiency is improved.

[0026] A flue gas conveying mechanism 5 is fixedly installed around the top surface of the tank cover 2. Through the flue gas conveying mechanism 5, the air intake mechanism 7 absorbs the flue gas in the sludge drying equipment and then conveys it to the four sets of flue gas conveying mechanisms 5 through the air conveying ring pipe 6. The four sets of flue gas conveying mechanisms 5 can make the flue gas evenly distributed in the treatment tank 1. The Venturi tube 502 helps to accelerate the flue gas flow rate, thereby enabling the flue gas to have good contact with the treatment solvent (such as sodium hydroxide solution and calcium hydroxide solution) in the treatment tank 1, improving the treatment effect of the flue gas. The top of the flue gas conveying mechanism 5 is connected to the air conveying ring pipe 6, and one side of the outer surface of the air conveying ring pipe 6 is connected to the air intake mechanism 7.

[0027] like Figure 5As shown, the mixing mechanism 4 includes an auger rod 401 and a stirring rod 402. The top of the auger rod 401 is fixedly connected to the output end of the servo motor 3. The stirring rod 402 consists of two sets and is symmetrically arranged on the top of the surface of the auger rod 401.

[0028] With the mixing mechanism 4 in place, the auger rod 401 and the stirring rod 402 thoroughly and evenly mix the treatment solvent and the flue gas, so that the flue gas and the treatment solvent are fully mixed.

[0029] like Figure 3 As shown, the flue gas conveying mechanism 5 includes an extended gas conveying pipe 501 and a venturi pipe 502. The extended gas conveying pipe 501 is fixedly installed around the top surface of the tank cover 2, and the venturi pipe 502 is fixedly installed at the bottom of the extended gas conveying pipe 501.

[0030] The flue gas conveying mechanism 5 is designed to evenly transport the flue gas from sludge drying into the treatment tank 1.

[0031] like Figure 2 and Figure 3 As shown, the air intake mechanism 7 includes an air intake pipe 701 and a suction fan 702. The air intake pipe 701 is connected to the outer surface of the air delivery ring pipe 6, and the suction fan 702 is connected to one end of the air intake pipe 701.

[0032] By setting the air intake mechanism 7, the suction fan 702 is turned on to absorb the flue gas in the sludge drying equipment, and then transport it to the air supply ring pipe 6 through the air intake pipe 701.

[0033] like Figure 6 As shown, a drain pipe 8 is provided through the bottom of the outer surface of the treatment tank 1, and a valve is fixedly installed on the surface of the drain pipe 8;

[0034] The drain pipe 8 serves to discharge the treated waste liquid.

[0035] like Figure 4 As shown, an exhaust pipe 9 is fixedly installed on the top surface of the can lid 2 away from the air intake mechanism 7, and the bottom of the exhaust pipe 9 is connected to the treatment tank 1.

[0036] The exhaust pipe 9 serves to discharge the treated gas.

[0037] like Figure 3 and Figure 4 As shown, there are four sets of flue gas conveying mechanisms 5, which are arranged in a circular array.

[0038] The four sets of flue gas conveying mechanisms 5 are set up to achieve the function of uniformly conveying flue gas.

[0039] The working principle of this utility model is as follows: the treatment solvent (such as sodium hydroxide solution or calcium hydroxide solution) is put into the treatment tank 1, the suction fan 702 is turned on to absorb the flue gas in the sludge drying equipment, and then transported to the gas transmission ring pipe 6 through the air inlet pipe 701.

[0040] The flue gas is transported through the gas conveying ring pipe 6 to the four sets of flue gas conveying mechanisms 5. The four sets of flue gas conveying mechanisms 5 can make the flue gas evenly distributed in the treatment tank 1. The Venturi tube 502 helps to accelerate the flue gas flow rate, so that the flue gas can have good contact with the treatment solvent in the treatment tank 1, thereby improving the treatment effect of the flue gas.

[0041] When connected to an external power source, the servo motor 3 drives the auger rod 401 and the stirring rod 402 to rotate. The auger rod 401 and the stirring rod 402 thoroughly and evenly mix the solvent and flue gas, making the flue gas treatment more complete and improving the flue gas treatment efficiency.

[0042] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0043] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas treatment device for sludge drying, comprising a treatment tank (1), characterized in that: The top surface of the processing tank (1) is fitted with a tank cover (2), and a servo motor (3) is fixedly installed in the middle of the top surface of the tank cover (2). The output end of the servo motor (3) passes through the tank cover (2) and is fixedly installed with a mixing mechanism (4). The top surface of the can lid (2) is fixedly provided with a flue gas conveying mechanism (5) around its perimeter. The top of the flue gas conveying mechanism (5) is connected to a gas conveying ring pipe (6), and one side of the outer surface of the gas conveying ring pipe (6) is connected to an air intake mechanism (7).

2. The flue gas treatment equipment for sludge drying according to claim 1, characterized in that, The mixing mechanism (4) includes an auger rod (401) and a stirring rod (402). The top of the auger rod (401) is fixedly connected to the output end of the servo motor (3). There are two sets of stirring rods (402) symmetrically arranged on the top of the surface of the auger rod (401).

3. The flue gas treatment equipment for sludge drying according to claim 1, characterized in that, The flue gas conveying mechanism (5) includes an extension gas conveying pipe (501) and a venturi pipe (502). The extension gas conveying pipe (501) is fixedly installed around the top surface of the can lid (2), and the venturi pipe (502) is fixedly installed at the bottom of the extension gas conveying pipe (501).

4. The flue gas treatment equipment for sludge drying according to claim 1, characterized in that, The air intake mechanism (7) includes an air intake pipe (701) and a suction fan (702). The air intake pipe (701) is connected to the outer surface of the air supply ring pipe (6), and the suction fan (702) is connected to one end of the air intake pipe (701).

5. The flue gas treatment equipment for sludge drying according to claim 1, characterized in that, A drain pipe (8) is provided through the bottom of the outer surface of the treatment tank (1), and a valve is fixedly installed on the surface of the drain pipe (8).

6. The flue gas treatment equipment for sludge drying according to claim 1, characterized in that, An exhaust pipe (9) is fixedly installed on the top surface of the can lid (2) away from the air intake mechanism (7), and the bottom of the exhaust pipe (9) is connected to the processing tank (1).

7. The flue gas treatment equipment for sludge drying according to claim 1, characterized in that, The number of flue gas conveying mechanisms (5) is four, and the four groups of flue gas conveying mechanisms (5) are arranged in a ring array.

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