CN213112710U

CN213112710U - Automatic feeding device for denitrification medicament

Info

Publication number: CN213112710U
Application number: CN202021556459.7U
Authority: CN
Inventors: 顾如清; 李洪飞; 鲍振伟
Original assignee: Wuxi Zhongke Electric Equipment Co ltd
Current assignee: Wuxi Zhongke Electric Equipment Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-05-04
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses an automatic feeder apparatus of throwing of denitrification medicament, it includes the medicament case, add the medicine measuring pump, agitating unit, add the medicine pipeline, electric cabinet and denitrification filtering pond, be provided with agitating unit in the medicament case, it is linked together medicament case and denitrification filtering pond to add the medicine pipeline, it adds the medicine measuring pump to be provided with on the medicine pipeline, it sets gradually the medicament check valve and adds the medicine flowmeter on the medicine pipeline to add between medicine measuring pump and the denitrification filtering pond, the anterior segment of denitrification filtering pond installs additional and is used for dissolved oxygen, the ammonia nitrogen, the first monitor of nitrate nitrogen on-line monitoring, and install additional on the outlet pipe of denitrification filtering pond and be used for total nitrogen, COD, the ammonia nitrogen, the nitrate nitrogen, ORP on-line monitoring's second monitor. The denitrification agent automatic feeding device not only combines feedforward control and feedback control, but also realizes full-automatic control of agent feeding, and the COD of discharged water is stable; and the medicament is saved, and the dosage of the medicament can be saved by 30 percent at most.

Description

Automatic feeding device for denitrification medicament

Technical Field

The utility model belongs to the sewage treatment technology especially relates to an automatic feeder apparatus that throws of denitrification medicament.

Background

The denitrification filter is suitable for the transformation from a first level B to a first level A of a sewage plant, can synchronously remove three indexes of TN, TP and SS, increases the TN removing capability compared with a V-shaped filter and a cloth filter, increases the SS removing capability compared with a DN filter (denitrification filter), and is more and more approved by owners.

The denitrification filter can synchronously remove a plurality of indexes, and the key factor of the denitrification filter is a filter material which is small enough to intercept SS and large enough to provide sufficient space for biofilm culturing of microorganisms. Meanwhile, the denitrification filter tank can stably operate, and the key factor lies in that the filter bricks can ensure long-term stable operation of the filter tank only if water distribution and air distribution are uniform and the filter tank does not generate dead zones. As the BOD of the inlet water of the denitrification filter tank is almost remained, the filter tank is required to be added with a medicament so as to ensure that denitrification bacteria have enough energy sources. The commonly used agents are acetic acid, sodium acetate, etc., which causes a problem: whether the chemical agent can be fully utilized by the denitrification deep bed filter determines whether the COD of the outlet water is higher than that of the inlet water, and if the TN of the inlet water is unstable and the chemical agent dosage needs to change constantly, the COD of the outlet water is more difficult to control.

Therefore, for industrial wastewater, when the inlet water TN fluctuates greatly, the fixed dosing mode may cause the outlet water COD to penetrate, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic feeder apparatus of throwing of denitrification medicament to denitrification filtering pond adopts fixed medicine mode to exist and probably leads to the penetrating problem of water COD among the solution prior art.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an automatic feeder apparatus of throwing of denitrification medicament, it includes the medicament case, adds medicine measuring pump, agitating unit, adds medicine pipeline, electric cabinet and denitrification filtering pond, wherein, be provided with agitating unit in the medicament case, it is linked together medicament case and denitrification filtering pond to add the medicine pipeline, it adds the medicine measuring pump to be provided with on the medicine pipeline, it sets gradually the medicament check valve and adds the medicine flowmeter on the medicine pipeline to add between medicine measuring pump and the denitrification filtering pond, the anterior segment of denitrification filtering pond installs the first monitor that is used for dissolved oxygen, ammonia nitrogen, nitrate nitrogen on-line monitoring additional, just install the second monitor that is used for total nitrogen, COD, ammonia nitrogen, nitrate nitrogen, ORP on-line monitoring on the outlet pipe of denitrification filtering pond additional, add medicine measuring pump, agitating unit, add medicine flowmeter, first monitor and second monitor and electric cabinet communication connection.

Particularly, a pressure gauge for detecting the pressure of the pipeline is further arranged on the dosing pipeline.

Particularly, a Y-shaped filter is arranged on a dosing pipeline between the dosing flowmeter and the denitrification filter.

Particularly, the automatic dosing device of denitrification medicament still includes the equipment platform, the chemical tank is vertical to be fixed in on the equipment platform, the middle part of equipment platform is provided with the medicine dosing pump mounting platform that is used for the installation to add the medicine dosing pump, all be provided with the step on the equipment platform of medicine dosing pump mounting platform both sides.

In particular, guardrails are arranged on the equipment platform and outside the steps.

Particularly, two chemical tanks are vertically arranged on the equipment platform at intervals, a stirring device is arranged on each chemical tank, and each chemical tank is communicated with the denitrification filter tank through a dosing pipeline.

The utility model has the advantages that compared with the prior art, the denitrification agent automatic feeding device not only combines the feedforward control and the feedback control, the agent feeding is fully automatically controlled, and the COD of the discharged water is stable; and the medicament is saved, and the dosage of the medicament can be saved by 30 percent at most.

Drawings

Fig. 1 is a schematic structural view of an automatic dosing device for denitrifying medicament provided by the embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an automatic dosing device for denitrifying medicament according to an embodiment of the present invention.

In this embodiment, an automatic feeder apparatus of throwing of denitrification medicament includes equipment platform 1, equipment platform 1 goes up the vertical two chemical tanks 2 that are fixed with in interval, the top of every chemical tank 2 is provided with mixer 3, and every chemical tank 2 all is linked together with denitrification filtering pond 5 through adding medicine pipeline 4, it adds medicine measuring pump 6 to be provided with on the medicine pipeline 4, the middle part of equipment platform 1 is provided with the medicine measuring pump mounting platform 7 that adds that is used for installing medicine measuring pump 6, all be provided with step 8 on the equipment platform of medicine measuring pump mounting platform 7 both sides, all be provided with guardrail 9 in step 8's the outside on equipment platform 1.

Set gradually on the medicine pipeline 4 between adding medicine measuring pump 6 and the denitrification filtering pond 5 medicament check valve 10 and add medicine flowmeter 11, the anterior segment of denitrification filtering pond 5 installs additional and is used for dissolved oxygen, the ammonia nitrogen, first monitor 12 of nitrate nitrogen on-line monitoring, and install additional on the outlet pipe of denitrification filtering pond 5 and be used for total nitrogen, COD, the ammonia nitrogen, the nitrate nitrogen, ORP on-line monitoring's second monitor 13, add medicine measuring pump 6, mixer 3, add medicine flowmeter 11, first monitor 12 and second monitor 13 and electric cabinet 14 communication connection. The dosing pipeline 4 is also provided with a pressure gauge 15 for detecting the pipeline pressure, and the dosing pipeline 4 between the dosing flowmeter 11 and the denitrification filter 5 is provided with a Y-shaped filter 16.

The automatic denitrification agent feeding device adopts a full-automatic agent feeding mode, and the COD removal rate is higher than 95%. 2.4g of carbon source is added into the feed water once, the average COD reaction rate is 5.3 mg/(g.h), and the average denitrification rate is 0.28 mg/(g.h). 1.2g of carbon source is respectively added when water is fed in and the reactor runs for 3 hours, the average COD reaction rate is 6.89 mg/(g.h), and the average denitrification rate is 0.37 mg/(g.h).

According to the effect of the water required to be treated, if ammonia nitrogen needs to be removed in the anaerobic reaction, the ammonia nitrogen can be calculated, and then according to the ammonia nitrogen amount, the BOD consumed by removing the ammonia nitrogen minus the original B amount in the sewage is calculated, namely the carbon amount needed to be added. The adding of the medicament adopts gravity adding and pressure adding, no matter which adding mode, a liquid medicine lifting device is arranged from a dissolving tank to a solution tank to a liquid medicine adding point, and the common liquid medicine lifting devices are a metering pump and a water injector.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. An automatic feeding device of denitrification medicament, which comprises a medicament box, a dosing metering pump, a stirring device, a dosing pipeline, an electric cabinet and a denitrification filter tank, it is characterized in that a stirring device is arranged in the chemical tank, the chemical tank is communicated with the denitrification filter tank through the chemical feeding pipeline, a dosing metering pump is arranged on the dosing pipeline, a medicament check valve and a dosing flowmeter are sequentially arranged on the dosing pipeline between the dosing metering pump and the denitrification filter tank, the front section of the denitrification filter tank is additionally provided with a first monitor for on-line monitoring of dissolved oxygen, ammonia nitrogen and nitrate nitrogen, and a water outlet pipe of the denitrification filter tank is additionally provided with a second monitor for on-line monitoring of total nitrogen, COD, ammonia nitrogen, nitrate nitrogen and ORP, the dosing metering pump, the stirring device, the dosing flow meter, the first monitor and the second monitor are in communication connection with the electric cabinet.

2. The automatic dosing device of denitrification agent as claimed in claim 1, wherein the dosing pipeline is further provided with a pressure gauge for detecting the pressure of the pipeline.

3. The automatic dosing device of denitrification agent as claimed in claim 1, wherein a Y-shaped filter is arranged on the dosing pipeline between the dosing flowmeter and the denitrification filter.

4. The automatic dosing device of denitrifying medicament according to claim 1, characterized in that said automatic dosing device of denitrifying medicament further comprises an equipment platform, said medicament box is vertically fixed on said equipment platform, a dosing metering pump mounting platform for mounting a dosing metering pump is provided in the middle of said equipment platform, and steps are provided on the equipment platforms on both sides of said dosing metering pump mounting platform.

5. The automatic dosing device of denitrifying medicament according to claim 4, characterized in that the outside of said steps on said equipment platform are provided with guardrails.

6. The automatic dosing device of denitrification agents as claimed in claim 4, wherein two agent boxes are vertically arranged on the equipment platform at intervals, each agent box is provided with a stirring device, and each agent box is communicated with the denitrification filter tank through a dosing pipeline.