Device for catalytically removing ammonia nitrogen based on novel surface activity denitrifying agent

Abstract

The utility model discloses a device for catalytic removal of ammonia nitrogen based on a novel surface activity denitrification agent. The device mainly comprises an ammonia nitrogen catalytic removal reaction device and an ammonia nitrogen catalytic removal collection device, the ammonia nitrogen catalytic removal reaction device comprises a reaction chamber, an openable and closable slag discharge port, a powerful stirrer motor, a water pump and a water discharge pipe, wherein the reaction chamber is formed by enclosing a heat dissipation wall body and is provided with an open top; a cover plate is arranged at the top of the reaction chamber, a powerful stirrer motor is fixedly mounted on the cover plate, and the cover plate is provided with a water inlet, a feed port, a feed port, a surface activity denitrification agent sample inlet and an exhaust port; the lower part of the reaction chamber is provided with an openable slag discharge port; a water outlet is further formed in the portion, above the slag discharging opening capable of being opened and closed, of the wall body capable of dissipating heat. And the ammonia nitrogen catalytic removal and collection device comprises an ammonia spray tower. The device is economical and practical, is convenient to install and construct, can be flexibly set in size according to the actual water treatment amount and the sample injection amount, and can realize efficient ammonia nitrogen catalytic removal.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic manganese slag denitrification equipment, and specifically relates to a device for catalyzing the removal of ammonia nitrogen based on a novel surface active denitrification agent. Background Art

[0002] In the process of producing electrolytic manganese metal, a large amount of electrolytic manganese slag is produced. The main pollutants, soluble manganese and ammonia nitrogen, will not only pollute the surrounding environment when entering the natural environment, but also affect human life and health. How to achieve harmless treatment of electrolytic manganese slag has become one of the hot issues in current research.

[0003] At present, the two main methods of treating electrolytic manganese slag at home and abroad are stacking and landfilling. Although this treatment method is simple to operate, it cannot achieve effective utilization of electrolytic manganese slag. Manganese slag also contains a large amount of soluble manganese and ammonia nitrogen. Direct stacking and landfilling not only occupies land and wastes manganese resources, but also with the migration of leachate, the harmful substances in it will also destroy the soil structure and pollute the environment.

[0004] Therefore, the catalytic removal of ammonia and nitrogen from electrolytic manganese slag has become a major difficulty in the current recycling of manganese slag. Our team has conducted in-depth research on this problem. By analyzing and comparing the advantages and disadvantages of various traditional surfactants, introducing advanced technical equipment and innovative process flows, we are committed to developing new surfactant denitrifiers and designing ammonia and nitrogen catalytic removal devices, striving to efficiently remove ammonia and nitrogen, achieve harmless utilization of electrolytic manganese slag, and reduce the pollution caused by manganese mine waste to the environment. Utility Model Content

[0005] The utility model aims to provide a device for catalyzing the removal of ammonia nitrogen based on a novel surface active denitrification agent.

[0006] A device for catalyzing the removal of ammonia nitrogen based on a novel surfactant denitrifier mainly consists of an ammonia nitrogen catalytic removal reaction device and an ammonia nitrogen catalytic removal collection device; the ammonia nitrogen catalytic removal reaction device comprises a reaction chamber surrounded by a heat dissipating wall and open at the top, an openable and closable slag discharge port, a powerful agitator motor, a water pump, and a drain pipe; a cover plate is arranged on the top of the reaction chamber, a powerful agitator motor is fixedly installed on the cover plate, and a water inlet, a feed inlet, a feed inlet, a surfactant denitrifier injection port and an exhaust port are provided; the water inlet is connected to an external water supply source through a water inlet pipe; the stirring shaft of the powerful agitator motor extends into the reaction chamber, and three layers of high-speed rotating fan blades are fixedly installed; the exhaust port is connected to the ammonia nitrogen catalytic removal collection device through an exhaust pipe; an openable and closable slag discharge port is provided at the lower part of the reaction chamber; a drain port is also provided on the heat dissipating wall above the openable and closable slag discharge port; the drain port is connected to the water pump through a drain pipe.

[0007] The utility model further illustrates that the ammonia nitrogen catalytic removal collection device comprises an ammonia spray tower; an air inlet is provided at the lower part of the ammonia spray tower, and the air inlet is connected to the exhaust port at the top of the reaction chamber through an exhaust pipe; a plurality of layers of water storage pipes are provided inside the ammonia spray tower, and a plurality of nozzles are provided on the water storage pipes; an ammonia water outlet is provided at the bottom of the ammonia spray tower.

[0008] The utility model further illustrates that gate valves are provided on the water inlet pipe and the exhaust pipe.

[0009] The utility model further describes that the device for catalyzing the removal of ammonia nitrogen based on a new type of surfactant denitrifier also includes an intelligent controller; the intelligent controller is installed on the outer side of the reaction chamber. The intelligent controller is used to control the working state of the entire device and is electrically connected to each electronic device in the device. An insulating layer is provided between the intelligent controller and the heat dissipation wall; or the intelligent controller is suspended and installed by a bracket, etc., without direct contact with the heat dissipation wall. Ammonia concentration sensors can also be set in the reaction chamber and the spray tower to provide corresponding working data for the intelligent controller.

[0010] The heat dissipation wall is a wall body (shell, tank, etc.) made of heat dissipation material. The heat dissipation material can be selected according to needs, and metal materials with good heat dissipation effect are preferred.

[0011] In the utility model, a multi-port sampling and mixing reaction method is adopted, and a total of 3 material inlets are set. First, the electrolytic manganese slag and quicklime are mixed and introduced from the feeding port, and then water is introduced through the water inlet to carry out a mixing reaction to achieve the alkalization of the acidic electrolytic manganese slag. Then, the liquid surfactant denitrifier is added from the sampling port to react with the ammonia nitrogen in the electrolytic manganese slag to accelerate the NH4 + The reaction of converting into NH3 causes NH3 to be freed, allowing NH3 to escape smoothly from the exhaust port.

[0012] In the utility model, three sample outlets are provided, namely, an exhaust port, a drain port and an openable and closable slag outlet, wherein the openable and closable slag outlet can be set to an automatic opening and closing mode. When the ammonia nitrogen concentration in the mixed sample liquid in the reaction device is lower than 5 mg / L, the intelligent controller can control the water pump to start, and the sample liquid in the reaction device is extracted through the drain port, and the openable and closable slag outlet automatically discharges slag after the drainage is completed.

[0013] In the utility model, the ammonia spray tower collects ammonia gas by multi-stage spraying, converts ammonia gas into ammonia water, reduces the pollution of ammonia nitrogen to the environment, and recycles the ammonia water.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model adopts multi-layer spraying equipment to collect ammonia nitrogen, which increases the contact area between ammonia gas and spraying water and greatly improves the recovery rate of ammonia gas.

[0016] 2. The equipment can monitor the ammonia nitrogen removal rate at any time and realize intelligent control of sampling and slag discharge.

[0017] 3. The ammonia nitrogen catalytic removal device uses a heat dissipating wall, which can realize automatic heat dissipation to achieve temperature control and achieve the best reaction conditions.

[0018] 4. Easy to install and construct. The device size can be flexibly set according to the actual water treatment volume and sample injection volume, which can achieve efficient catalytic removal of ammonia nitrogen.

[0019] 5. The device is intelligent and can monitor the concentration of ammonia nitrogen in real time and automatically control the injection and slag discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall plan view of an embodiment of the utility model.

[0021] Figure 2 for Figure 1 Top view of the .

[0022] Figure 3 It is a side sectional view of an ammonia spray tower in one embodiment of the utility model.

[0023] Figure 4 It is a top view of a water pump in one embodiment of the utility model.

[0024] In the figure: 1- heat dissipation wall; 2- openable and closable slag discharge port; 3- water inlet pipe; 4- feed inlet; 5- surfactant denitrification agent inlet; 6- powerful agitator motor; 7- exhaust pipe; 8- three-layer agitator high-speed rotating fan blades; 9- water pump; 10- drain pipe; 11- ammonia spray tower; 12- water storage pipe; 13- nozzle; 14- gate valve; 15- ammonia water outlet; 16- intelligent controller. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings. Example

[0026] A device for catalytic removal of ammonia nitrogen based on a new type of surface active denitrifier, mainly composed of an ammonia nitrogen catalytic removal reaction device and an ammonia nitrogen catalytic removal collection device; wherein:

[0027] The ammonia nitrogen catalytic removal reaction device comprises a reaction chamber which is surrounded by a heat dissipation wall 1 and has an open top, an openable and closable slag discharge port 2, a powerful agitator motor 6, a water pump 9, and a drain pipe 10; a cover plate is arranged on the top of the reaction chamber, on which a powerful agitator motor 6 is fixedly mounted, and which is provided with a water inlet, a feed inlet, a feed inlet 4, a surfactant denitrification agent injection port 5, and an exhaust port; the water inlet is connected to an external water supply source through a water inlet pipe 3; the stirring shaft of the powerful agitator motor 6 extends into the reaction chamber, and three layers of high-speed rotating fan blades 8 are fixedly mounted; the exhaust port is connected to the ammonia nitrogen catalytic removal collection device through an exhaust pipe; an openable and closable slag discharge port 2 is arranged at the lower part of the reaction chamber; a drain port is also arranged on the heat dissipation wall 1 above the openable and closable slag discharge port 2; the drain port is connected to the water pump 9 through a drain pipe 10.

[0028] This embodiment further illustrates that the ammonia nitrogen catalytic removal and collection device includes an ammonia spray tower 11; an air inlet is provided at the lower portion of the ammonia spray tower 11, and the air inlet is connected to the exhaust port at the top of the reaction chamber through an exhaust pipe 7; a plurality of layers of water storage pipes 12 are provided inside the ammonia spray tower 11, and a plurality of nozzles 13 are provided on the water storage pipes 12; an ammonia water outlet 15 is provided at the bottom of the ammonia spray tower 11.

[0029] This embodiment further illustrates that gate valves 14 are provided on the water inlet pipe 3 and the exhaust pipe 7 .

[0030] This embodiment further illustrates that it also includes an intelligent controller 16; the intelligent controller 16 is installed on the outer side of the reaction chamber.

[0031] Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation of the present invention. For ordinary technicians in the relevant technical field, other different forms of changes or modifications can be made based on the above description; it is not necessary and impossible to list all the implementation methods here; and the obvious changes or modifications derived from them are still within the scope of protection of the present invention.

Claims

1. A device for catalytic removal of ammonia nitrogen based on a novel surface active denitrifier, mainly consisting of an ammonia nitrogen catalytic removal reaction device and an ammonia nitrogen catalytic removal collection device; characterized in that: The ammonia nitrogen catalytic removal reaction device comprises a reaction chamber enclosed by a heat dissipating wall (1) and having an open top, an openable and closable slag discharge port (2), a powerful agitator motor (6), a water pump (9), and a drainage pipe (10); A cover plate is provided on the top of the reaction chamber, on which a powerful agitator motor (6) is fixedly mounted, and is provided with a water inlet, a feed inlet (4), a surfactant denitrification agent inlet (5) and an exhaust port; the water inlet is connected to an external water supply source via a water inlet pipe (3); the agitator shaft of the powerful agitator motor (6) extends into the reaction chamber, and is fixedly mounted with three layers of high-speed rotating fan blades (8); the exhaust port is connected to the ammonia nitrogen catalytic removal collection device via an exhaust pipe; An openable and closable slag discharge port (2) is provided at the lower part of the reaction chamber; a drainage port is also provided on the heat dissipating wall (1) above the openable and closable slag discharge port (2); and the drainage port is connected to a water pump (9) via a drainage pipe (10).

2. The device for catalyzing the removal of ammonia nitrogen based on a novel surface active denitrifier according to claim 1 is characterized in that: The ammonia nitrogen catalytic removal collection device comprises an ammonia spray tower (11); an air inlet is provided at the bottom of the ammonia spray tower (11), and the air inlet is connected to the exhaust port at the top of the reaction chamber through an exhaust pipe (7); a plurality of layers of water storage pipes (12) are provided inside the ammonia spray tower (11), and a plurality of nozzles (13) are provided on the water storage pipes (12); and an ammonia water outlet (15) is provided at the bottom of the ammonia spray tower (11).

3. The device for catalyzing the removal of ammonia nitrogen based on a novel surface active denitrifier according to claim 2 is characterized in that: The water inlet pipe (3) and the exhaust pipe (7) are both provided with gate valves (14).

4. The device for catalyzing the removal of ammonia nitrogen based on a novel surface active denitrifier according to claim 1 is characterized in that: It also includes an intelligent controller (16); the intelligent controller (16) is installed on the outer side of the reaction chamber.

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