Sea eel culture tail water pollutant intercepting and phosphorus removing device

Abstract

The utility model provides a sewage intercepting and phosphorus removing device for eel breeding tail water, relates to the technical field of eel breeding, and solves the problems that an existing tail water phosphorus removing device is low in phosphorus removing effect and efficiency due to the fact that the existing tail water phosphorus removing device purely depends on chemicals for natural reaction. The tail water dephosphorization device comprises a dephosphorization reaction kettle, a stirring assembly for accelerating the reaction of an agent and tail water through stirring is arranged in the dephosphorization reaction kettle, a heating jacket for accelerating the reaction of the agent and the tail water through heating is arranged on the outer wall of the dephosphorization reaction kettle, and a sewage intercepting box is arranged below the dephosphorization reaction kettle. The tail water treatment device has the beneficial effects that the reaction effect and efficiency of a medicament and tail water can be improved, and phosphorus in the tail water can be fully separated out; and the upper sewage intercepting box is matched, so that precipitated phosphorus substances can be filtered in a layered manner, and later recycling is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of eel breeding, in particular to a device for intercepting and removing phosphorus from tail water of eel breeding. Background Art

[0002] Aquaculture tailwater is the main source of pollution in aquaculture. The large amount of feed input and fish excrement produced during the aquaculture process lead to the accumulation of nitrogen and phosphorus pollutants such as nitrates in the aquaculture water, which not only causes the deterioration of aquaculture water quality, frequent diseases of farmed animals, and affects the quality of aquatic products, but also damages the surrounding ecological environment if it is directly discharged without treatment, and endangers human health. Therefore, aquaculture tailwater must be treated for nitrogen and phosphorus removal before discharge.

[0003] The existing eel farming tailwater phosphorus removal device simply relies on natural reactions with chemicals, and the phosphorus removal effect and efficiency are low. The precipitated crystals and sludge are directly discharged and easily cause pollution. Utility Model Content

[0004] The utility model aims to solve the problems that the existing eel breeding tail water dephosphorization device simply relies on natural reaction of chemicals, the dephosphorization effect and efficiency are low, and the precipitated crystals and sludge are directly discharged and easily cause pollution.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for intercepting and removing phosphorus from tail water of eel farming comprises a phosphorus removal reactor, a reactor cover of the phosphorus removal reactor is connected with a dosing pipe and a tail water inlet pipe, and is characterized in that: a stirring component for accelerating the reaction of the agent and the tail water by stirring is arranged in the phosphorus removal reactor, a heating jacket for accelerating the reaction of the agent and the tail water by heating is arranged on the outer wall of the phosphorus removal reactor, a sewage interception box is arranged below the phosphorus removal reactor, a downpipe is connected between the bottom of the phosphorus removal reactor and the top of the sewage interception box, a coarse filter screen and a fine filter screen for filtering crystals produced by the reaction and sludge in the tail water are arranged in the sewage interception box, and a drain pipe is arranged at the bottom of the sewage interception box.

[0007] A further improvement is that the stirring assembly includes a servo motor installed on the upper end of the kettle cover of the dephosphorization reactor, the output end of the servo motor extends into the dephosphorization reactor and is fixedly connected to a stirring shaft, two stirring rods are symmetrically connected to the upper side wall of the stirring shaft, and the end of the stirring rod away from the stirring shaft is fixedly connected to a scraper for scraping off sludge and reaction crystals attached to the inner wall of the dephosphorization reactor during stirring, and the side wall of the scraper abuts against the inner wall of the dephosphorization reactor.

[0008] A further improvement is that: a plurality of stirring racks are evenly distributed circumferentially on the side wall of the stirring shaft below the stirring rod, and a plurality of stirring blades are arranged on the stirring racks.

[0009] A further improvement is that the coarse filter is arranged above the fine filter and is spaced a certain distance apart, and both the coarse filter and the fine filter are inverted V-shaped stainless steel filter.

[0010] A further improvement is that: a first sewage pipe and a second sewage pipe are respectively provided at one side wall of the sewage interception box corresponding to the coarse filter screen and the fine filter screen; and a sludge discharge valve is provided on both the first sewage pipe and the second sewage pipe.

[0011] A further improvement is that a cavity is formed between the heating jacket and the outer wall of the dephosphorization reactor, an injection pipe for injecting heat transfer oil is connected to the upper side wall of the heating jacket, a discharge pipe for draining the heat transfer oil is connected to the lower side wall of the heating jacket, and a heater is arranged on the inner wall of the heating jacket.

[0012] A further improvement is that both the injection pipe and the discharge pipe are connected to an external oil storage tank via an oil pump, and valves are provided on both the injection pipe and the discharge pipe.

[0013] A further improvement is that a ventilation pipe is also connected to the upper end of the heating jacket.

[0014] A further improvement is that a flow meter is connected to the dosing pipe.

[0015] A further improvement is that a plurality of supporting legs are arranged at the bottom of the dirt intercepting box.

[0016] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0017] By providing a stirring assembly in combination with a heating jacket, the effect and efficiency of the reaction between the reagent and the tail water can be improved, and the phosphorus in the tail water can be fully precipitated;

[0018] With the sewage interception box, the precipitated phosphorus substances can be filtered in layers, which is convenient for later recycling;

[0019] The scraper of the stirring assembly can scrape off the material attached to the wall of the reactor to ensure the full reaction and avoid the material attachment that reduces the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the dirt interception box 7 in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the stirring component 5 in the utility model.

[0025] Explanation of the accompanying drawings: dephosphorization reactor 1, heating jacket 2, heater 21, injection pipe 22, discharge pipe 23, ventilation pipe 24, dosing pipe 3, flow meter 31, tail water inlet pipe 4, stirring assembly 5, servo motor 51, stirring shaft 52, stirring rod 53, scraper 54, stirring frame 55, stirring blade 56, downpipe 6, sewage interception box 7, coarse filter screen 71, fine filter screen 72, first sewage pipe 73, second sewage pipe 74, drain pipe 8, supporting foot 9. DETAILED DESCRIPTION

[0026] See also Figure 1-Figure 4 As shown, the technical solution adopted in this specific embodiment is: an eel farming tailwater sewage interception and phosphorus removal device, which includes a phosphorus removal reactor 1, a reactor cover of the phosphorus removal reactor 1 is connected with a dosing pipe 3 and a tailwater inlet pipe 4, a stirring component 5 is arranged in the phosphorus removal reactor 1 for accelerating the reaction of the agent and the tailwater by stirring, a heating jacket 2 is arranged on the outer wall of the phosphorus removal reactor 1 for accelerating the reaction of the agent and the tailwater by heating, a sewage interception box 7 is arranged below the phosphorus removal reactor 1, a downpipe 6 is connected between the bottom of the phosphorus removal reactor 1 and the top of the sewage interception box 7, a coarse filter screen 71 and a fine filter screen 72 are arranged in the sewage interception box 7 for filtering crystals produced by the reaction and sludge in the tailwater, and a drain pipe 8 is arranged at the bottom of the sewage interception box 7.

[0027] Wherein, the drain pipe 8 is provided with a drain valve, and the downpipe 6 is provided with a downpipe valve.

[0028] Among them, the stirring component 5 includes a servo motor 51 installed on the upper end of the kettle cover of the dephosphorization reactor 1, the output end of the servo motor 51 extends into the dephosphorization reactor 1 and is fixedly connected to a stirring shaft 52, and the upper side wall of the stirring shaft 52 is symmetrically connected to two stirring rods 53, and the end of the stirring rod 53 away from the stirring shaft 52 is fixedly connected to a scraper 54 for scraping off sludge and reaction crystals attached to the inner wall of the dephosphorization reactor 1 during stirring, and the side wall of the scraper 54 abuts against the inner wall of the dephosphorization reactor 1.

[0029] A plurality of stirring frames 55 are evenly distributed circumferentially on the side wall of the stirring shaft 52 below the stirring rod 53 , and a plurality of stirring blades 56 are arranged on the stirring frames 55 .

[0030] The coarse filter 71 is arranged above the fine filter 72 and is spaced a certain distance apart. Both the coarse filter 71 and the fine filter 72 are inverted V-shaped stainless steel filter screens.

[0031] A first sewage pipe 73 and a second sewage pipe 74 are respectively provided at one side wall of the sewage interception box 7 corresponding to the coarse filter 71 and the fine filter 72; sludge discharge valves are provided on the first sewage pipe 73 and the second sewage pipe 74. The filtration of the coarse and fine filters can classify the crystals and sludge, which is conducive to recycling in the later stage.

[0032] A cavity is formed between the heating jacket 2 and the outer wall of the dephosphorization reactor 1, an injection pipe 22 for injecting heat transfer oil is connected to the upper side wall of the heating jacket 2, a discharge pipe 23 for draining the heat transfer oil is connected to the lower side wall of the heating jacket 2, and a heater 21 is arranged on the inner wall of the heating jacket 2. The heat transfer oil is heated by the heater, and then the reactor is heated, so that the heating is more uniform, and the heat transfer oil can be discharged when not heated, so as to achieve the effect of rapid cooling.

[0033] The injection pipe 22 and the discharge pipe 23 are both connected to an external oil storage tank through an oil pump, and valves are provided on the injection pipe 22 and the discharge pipe 23. The heat transfer oil can be circulated through the oil storage tank.

[0034] The upper end of the heating jacket 2 is also connected to a vent pipe 24. A filter core is provided at the tail of the vent pipe 24, which can reduce the emission of particles of the heat transfer oil into the air, reduce air pollution, and protect the environment.

[0035] The dosing pipe 3 is connected with a flow meter 31. The flow meter 31 is used to accurately control the amount of the added agent to ensure that the agent reacting with the tail water is not too little or too much.

[0036] Among them, a plurality of supporting feet 9 are arranged at the bottom of the sewage interception box 7. Among them, the supporting feet 9 can ensure the stability of the device.

[0037] The dirt interception box 7 is connected to the dephosphorization reactor 1 via a bracket.

[0038] The working principle of the utility model is as follows: when in use, the tail water of eel farming is first filtered and introduced into the reactor, the reaction reagent is injected through the dosing tube, the heater is started to heat the heat transfer oil, the reactor is evenly heated by the heating jacket, and then the servo motor is started, and the reagent and tail water are stirred by the stirring component. The efficiency and effect of the reaction can be improved by heating and stirring, and the phosphorus in the tail water can be fully precipitated. After that, the tail water and the precipitated crystals are sent downward to the sewage interception box, and the crystals and part of the sludge are filtered through the coarse and fine filter screens. The filtered sludge and crystals are discharged through the sewage pipe for recycling, and the filtered water is discharged through the drain pipe; the sludge and crystals attached to the inner wall of the reactor can be scraped off by the scraper of the stirring component to avoid long-term attachment affecting the heating effect of the heating jacket on the reactor, and the sludge and crystals can also be completely discharged.

[0039] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A device for intercepting and removing phosphorus from tail water of eel breeding, comprising a dephosphorization reactor, the reactor cover of which is connected with a dosing pipe and a tail water inlet pipe, characterized in that: The dephosphorization reactor is provided with a stirring component for accelerating the reaction of the reagent and tail water by stirring, the outer wall of the dephosphorization reactor is provided with a heating jacket for accelerating the reaction of the reagent and tail water by heating, a sewage interception box is provided below the dephosphorization reactor, a downpipe is connected between the bottom of the dephosphorization reactor and the top of the sewage interception box, a coarse filter screen and a fine filter screen for filtering crystals produced by the reaction and sludge in the tail water are provided in the sewage interception box, and a drain pipe is provided at the bottom of the sewage interception box.

2. The device for intercepting and removing phosphorus from tail water of eel farming according to claim 1, characterized in that: The stirring assembly includes a servo motor installed on the upper end of the kettle cover of the dephosphorization reactor, the output end of the servo motor extends into the dephosphorization reactor and is fixedly connected to a stirring shaft, two stirring rods are symmetrically connected to the upper side wall of the stirring shaft, and one end of the stirring rod away from the stirring shaft is fixedly connected to a scraper for scraping off sludge and reaction crystals attached to the inner wall of the dephosphorization reactor during stirring, and the side wall of the scraper abuts against the inner wall of the dephosphorization reactor.

3. The device for intercepting and removing phosphorus from tail water of eel farming according to claim 2, characterized in that: A plurality of stirring racks are evenly distributed circumferentially on the side wall of the stirring shaft below the stirring rod, and a plurality of stirring blades are arranged on the stirring racks.

4. The device for intercepting and removing phosphorus from tail water of eel farming according to claim 1, characterized in that: The coarse filter screen is arranged above the fine filter screen and is spaced a certain distance apart. Both the coarse filter screen and the fine filter screen are inverted V-shaped stainless steel filter screens.

5. The device for intercepting and removing pollutants and phosphorus from eel breeding tailwater according to claim 4, characterized in that: A first sewage pipe and a second sewage pipe are respectively arranged on one side wall of the sewage interception box corresponding to the coarse filter screen and the fine filter screen; and a sludge discharge valve is arranged on the first sewage pipe and the second sewage pipe.

6. The device for intercepting and removing pollutants and phosphorus from eel breeding tailwater according to claim 1, characterized in that: A cavity is formed between the heating jacket and the outer wall of the dephosphorization reactor. An injection pipe for injecting heat transfer oil is connected to the upper side wall of the heating jacket, and a discharge pipe for draining heat transfer oil is connected to the lower side wall of the heating jacket. A heater is arranged on the inner wall of the heating jacket.

7. The device for intercepting and removing phosphorus from tail water of eel farming according to claim 6, characterized in that: The injection pipe and the discharge pipe are both connected to an external oil storage tank through an oil pump, and valves are arranged on the injection pipe and the discharge pipe.

8. The device for intercepting and removing phosphorus from tail water of eel farming according to claim 6, characterized in that: The upper end of the heating jacket is also connected with a vent pipe.

9. The device for intercepting and removing phosphorus from tail water of eel farming according to claim 1, characterized in that: The dosing pipe is connected with a flow meter.

10. The device for intercepting and removing pollutants and phosphorus from eel breeding tailwater according to claim 1, characterized in that: A plurality of supporting legs are arranged at the bottom of the dirt intercepting box.

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