Dry pretreatment reactor for acidic hazardous waste

Abstract

The utility model relates to a dry pretreatment reactor for acidic hazardous waste, which comprises a rack, a reaction barrel and a driving motor are mounted on the rack, the reaction barrel is cylindrical, a paddle is arranged in the cylindrical reaction barrel and mounted on a main shaft, and the main shaft penetrates through the reaction barrel and is driven by the driving motor; a feeding port is formed in the top of the reaction barrel body, a discharging port is formed in the bottom of the reaction barrel body, a flap valve is arranged on the discharging port, and the flap valve is a manual flap valve or a pneumatic flap valve. Due to the arrangement of the paddle, the dead angle of the mixing reaction is greatly reduced, the flap valve at the discharge hole can be a manual flap valve or an automatic flap valve, the electric box is provided with a manual / automatic knob, a switch is controlled through the current when the manual / automatic knob is rotated to be automatic, the current value can be set, the valve is automatically opened after the set value is reached, the discharge time is accurately controlled, and the operation is simple and convenient. And the use is convenient.

Description

Technical Field

[0001] The utility model relates to a hazardous waste reactor, in particular to a dry pretreatment reactor for acidic hazardous waste, which is used for dry pretreatment of acidic hazardous waste. Background Art

[0002] Incineration disposal lines are subject to strict control indicators for incineration feed materials. Currently, acidic hazardous waste is treated by adding water, stirring, and then neutralizing and filtering with lime. This method requires neutralization and filtration, which produces wastewater. This not only increases the amount of hazardous waste, but also presents problems such as high organic matter content, high salinity, and difficulty in treatment. Therefore, those skilled in the art urgently need to develop equipment that can pretreat acidic hazardous waste without the need for water, namely a dry pretreatment reactor, which can convert acidic hazardous waste into a slightly alkaline dry material that can be directly incinerated.

[0003] The utility model is thus produced. Utility Model Content

[0004] In response to the above-mentioned technical problems of the prior art, the purpose of the utility model is to provide a dry pretreatment reactor for acidic hazardous waste, in which the setting of the paddles greatly reduces the reaction dead angle and improves the pretreatment efficiency. The flap valve at the discharge port is a pneumatic flap valve, which can be controlled manually or automatically. The electrical box is equipped with a manual / automatic knob. When it is turned to automatic, the switch is controlled by the current size. The current value can be set, and the valve automatically opens when the set value is reached. The discharge time is accurately controlled and easy to use.

[0005] To achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0006] A dry pretreatment reactor for acidic hazardous waste comprises a frame, on which a reaction barrel and a drive motor are mounted. The reaction barrel is cylindrical, and a paddle is provided in the cylindrical reaction barrel. The paddle is mounted on a main shaft, which passes through the reaction barrel and is driven by the drive motor. A feeding port is provided at the top of the reaction barrel, and a discharge port is provided at the bottom of the reaction barrel. A flap valve is provided on the discharge port.

[0007] The flap valve is a pneumatic flap valve, and the opening and closing are controlled by the size of the electric current.

[0008] The paddles are mounted on both ends of the stirring shaft, and the stirring shaft runs through the main shaft.

[0009] The distance between the paddle and the inner wall of the reaction barrel is ≤10mm.

[0010] The output shaft end of the driving motor is provided with a driving wheel, the end of the main shaft is provided with a driven wheel, and the driving wheel and the driven wheel are connected by a belt.

[0011] There are two groups of stirring shafts, one of which is perpendicular to the main shaft and the other is inclined relative to the main shaft.

[0012] An inspection port is provided on the front side of the reaction barrel.

[0013] The top of the reaction barrel is provided with an exhaust port, a water inlet and a spare port.

[0014] The diameter of the reaction barrel is 1000-1200 mm, the length is 1600-1800 mm, and the total volume is 1400-1600 L.

[0015] The driving motor is a reduction motor with a rotation speed of 1-43 r / min.

[0016] The dry pretreatment reactor for acidic hazardous waste of the utility model has the following beneficial effects:

[0017] 1. The utility model drives the blades to rotate 360 ​​degrees through the stirring shaft. The blades pick up the material from the bottom and move it to the middle. The blades at both ends are symmetrical structures. The materials move from both sides to the middle, thereby forming convection mixing. The movement trajectories of the blades completely overlap, and the distance between the blades and the inner wall of the cylinder is ≤10mm, which greatly reduces the reaction dead angle.

[0018] 2. The flap valve at the discharge port of the utility model is a pneumatic flap valve, which can be controlled manually or automatically. The electrical box is equipped with a manual / automatic knob. When it is turned to manual, the timing of opening the flap valve needs to be manually controlled, and the flap valve can be pneumatically opened by operating the button; when it is turned to automatic, the switch is controlled by the current interlock, and the current value can be set. When the set value is reached, the valve opens automatically, and the discharge time is accurately controlled and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a side structural diagram of the present utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the installation position relationship of the paddle, stirring shaft and main shaft of the utility model;

[0023] Among them, 1 is the frame, 2 is the reaction barrel, 3 is the driving motor, 4 is the paddle, 5 is the main shaft, 6 is the feeding port, 7 is the discharging port, 8 is the flap valve, 9 is the stirring shaft, 10 is the driving wheel, 11 is the driven wheel, 12 is the maintenance port, 13 is the exhaust port, 14 is the water inlet, and 15 is the spare port. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to specific embodiments, but the protection scope of the present invention is not limited thereto.

[0025] like Figure 1-4 As shown, the dry pretreatment reactor for acidic hazardous waste of the present invention includes a frame 1, on which a reaction barrel 2 and a drive motor 3 are mounted. The diameter of the reaction barrel 2 is 1000-1200 mm, such as 1000 mm, 1200 mm, or 1100 mm, and the length is 1600-1800 mm, such as 1600 mm, 1800 mm, or 1700 mm, and the total volume is 1400-1600 L, such as 1400 L, 1600 L, or 1500 L. The drive motor 3 is a reduction motor with a speed of 1-43 r / min. The reaction barrel 2 is cylindrical and is a monolithic structure compared to the U-shaped structure. There is no risk of dust flying out, and there are fewer dead corners in the mixing reaction.

[0026] The cylindrical reaction barrel is provided with paddles 4, which are mounted at both ends of the stirring shaft 9. Since water does not need to be added when pre-treating acidic hazardous waste in the reactor of the present invention, and the material is relatively viscous, the stirring shaft 9 is passed through the main shaft 5, and the main shaft 5 passes through the reaction barrel 2. Compared with the conventional method of welding the stirring shaft to the main shaft, the paddles 4 in the present invention can be subjected to greater force without breaking, which is very suitable for stirring dry materials with higher viscosity. The stirring shaft 9 is divided into two groups, one of which is perpendicular to the main shaft 5, and the other is inclined relative to the main shaft 5. The distance between the paddles 4 and the inner wall of the reaction barrel 2 is ≤10mm, and they are as close to the inner wall of the reaction barrel 2 as possible to reduce the dead angle of the mixing reaction. With the wall scraping function, the reaction barrel 2 is not easy to stick to the material.

[0027] A driving wheel 10 is provided at the output shaft end of the driving motor 3 , and a driven wheel 11 is provided at the end of the main shaft 5 . The driving wheel 10 and the driven wheel 11 are connected by a belt.

[0028] The top of the reaction barrel 2 is provided with a feeding port 6, an exhaust port 13, a water inlet 14 and a standby port 15, the bottom of the reaction barrel 2 is provided with a discharge port 7, and the front of the reaction barrel 2 is provided with an inspection port 12, so that the inside of the reaction barrel 2 can be cleaned.

[0029] The paddle 4 is arranged to greatly reduce the mixing reaction dead angle, and the flap valve 8 of the discharge port 7 can be manually controlled or automatically controlled, the electric box is provided with a manual / automatic knob, when the knob is rotated to the automatic position, the current size control switch is used, the current value can be set, and the valve is automatically opened after the set value is reached, the discharge time is accurately controlled, and the utility model is convenient to use.

[0030] When the utility model is used, lime is added, acidic hazardous waste is slowly added, solid, slurry-like viscous material is contained, neutralization is carried out through stirring, and finally, the alkaline dry material is formed, which can be directly incinerated. The reactor using the utility model can be used for dry pretreatment of acidic hazardous waste, directly lime and hazardous waste are combined, water is not needed, and filtration is not needed, the hazardous waste does not increase, and the generation of high-salt and high-organic wastewater is avoided.

[0031] The above embodiment is only used for explaining the inventive concept of the utility model, and is not limited to the protection of the utility model, and any non-essential change of the utility model by using the concept should fall within the protection scope of the utility model.

Claims

1. A dry pretreatment reactor for acidic hazardous waste, characterized by: It includes a frame on which a reaction barrel and a drive motor are installed. The reaction barrel is cylindrical and has a paddle inside. The paddle is installed on a main shaft. The main shaft passes through the reaction barrel and is driven by a drive motor. A feeding port is provided on the top of the reaction barrel and a discharge port is provided on the bottom of the reaction barrel. A flap valve is provided on the discharge port.

2. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: The flap valve is a pneumatic flap valve, and the opening and closing are controlled by the size of the electric current.

3. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: The paddles are mounted on both ends of the stirring shaft, and the stirring shaft runs through the main shaft.

4. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: The distance between the paddle and the inner wall of the reaction barrel is ≤10mm.

5. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: The output shaft end of the driving motor is provided with a driving wheel, the end of the main shaft is provided with a driven wheel, and the driving wheel and the driven wheel are connected by a belt.

6. The dry pretreatment reactor for acidic hazardous waste according to claim 3, characterized in that: There are two groups of stirring shafts, one of which is perpendicular to the main shaft and the other is inclined relative to the main shaft.

7. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: An inspection port is provided on the front side of the reaction barrel.

8. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: The top of the reaction barrel is provided with an exhaust port, a water inlet and a spare port.

9. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: The diameter of the reaction barrel is 1000-1200 mm, the length is 1600-1800 mm, and the total volume is 1400-1600 L.

10. The dry pretreatment reactor for acidic hazardous waste according to claim 1, characterized in that: The driving motor is a reduction motor with a rotation speed of 1-43 r / min.

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