CN219482169U

CN219482169U - Chemical fertilizer production waste gas treatment system

Info

Publication number: CN219482169U
Application number: CN202320649950.1U
Authority: CN
Inventors: 马桐
Original assignee: Tianjin Fuchengyuan Fertilizer Co ltd
Current assignee: Tianjin Fuchengyuan Fertilizer Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-08-08
Anticipated expiration: 2033-03-29

Abstract

The utility model discloses a chemical fertilizer production waste gas treatment system, which comprises an outer shell, wherein an alkali liquid groove is arranged in one end of the outer shell, an air inlet pipe is connected in one side of the upper end of the alkali liquid groove, a catalytic oxidation device is connected in one side of the upper end of the alkali liquid groove through an air pipe, one end of the catalytic oxidation device is connected with an exhaust pipe through an exhaust pump, a waste gas detector is arranged on the exhaust pipe, an air return pipe is connected between the exhaust pipe and the alkali liquid groove, a liquid inlet pipe and a liquid outlet pipe are arranged on one side of the alkali liquid groove, a PH sensor is arranged on the inner wall of the alkali liquid groove, and a stirring mechanism is arranged at the bottom of the alkali liquid groove.

Description

Chemical fertilizer production waste gas treatment system

Technical Field

The utility model relates to the technical field of waste gas treatment, in particular to a chemical fertilizer production waste gas treatment system.

Background

The chemical fertilizer production workshop generates a large amount of waste gas containing organic pollutants, so that the factory accessories generate malodor, which is one of the sources of environmental deterioration, the current environmental protection pressure is higher and higher, and the development of a waste gas purifying system which can be suitable for the chemical fertilizer inspection workshop is urgent, so that the waste gas purifying system has better purifying effect and economy, and is always in a research and development stage.

The organic waste gas treatment system for the chemical fertilizer production workshop is applicable to treatment of the organic waste gas generated in the chemical fertilizer production workshop, has high purification efficiency, simple structure, easy operation and good economical efficiency. However, the gas after the treatment cannot be detected and treated, the unqualified gas is directly discharged to the atmosphere to pollute the environment easily, and when the PH value of the alkali liquor in the alkali liquor tank is lower than a preset value, the liquid is reused to affect the treatment effect of the waste gas during alkali washing, and the purpose of automatically replacing the alkali liquor is difficult to realize, so that the waste gas treatment efficiency is affected.

Disclosure of Invention

The utility model aims to provide a chemical fertilizer production waste gas treatment system, which solves the problems that in the prior art, the treated gas cannot be detected and treated, the unqualified gas is directly discharged to the atmosphere to cause easy environmental pollution, and when the PH value of alkali liquor in an alkali liquor tank is lower than a preset value, the alkali liquor is used for alkali washing to influence the treatment effect of waste gas, and the aim of automatically replacing the alkali liquor is difficult to realize, so that the waste gas treatment efficiency is influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a chemical fertilizer production exhaust treatment system, includes the shell body, shell body one end inside is equipped with alkali cistern, alkali cistern upper end one side internal connection has the air-supply line, alkali cistern upper end one side is connected with catalytic oxidation device through the gas-supply pipe, catalytic oxidation device one end is connected with the blast pipe through the exhaust pump, install exhaust gas detection appearance on the blast pipe, and be connected with the muffler between blast pipe and the alkali cistern, alkali cistern one side is equipped with feed liquor pipe and fluid-discharge tube, PH sensor is installed to alkali lye inslot wall, rabbling mechanism is installed to the bottom in the alkali lye.

Further, the alkali liquor tank is arranged into a cylindrical tank, and an upper end cover is arranged on the upper side of the alkali liquor tank.

Further, the stirring mechanism comprises a stirring motor, and one end of the stirring motor is connected with a stirring shaft and stirring blades in a transmission manner.

Further, the liquid inlet pipe is provided with a second valve and a liquid inlet pump, and the liquid outlet pipe is provided with a first valve and a liquid outlet pump.

Further, a liquid level sensor is arranged on the outer side of the inner wall of the alkali liquor tank, and the liquid level sensor and the PH sensor are electrically connected with a PLC control cabinet on the outer side of the alkali liquor tank.

Further, a third valve is arranged on the exhaust pipe, and a fourth valve is arranged on the muffler.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the exhaust pipe is provided with the exhaust gas detector, and the air return pipe is connected between the exhaust pipe and the alkali liquor tank, so that the treated gas can be detected and treated, and the unqualified gas can be returned to the bottom in the alkali liquor tank through the air return pipe for further treatment until the qualified gas is discharged, thereby being beneficial to improving the thoroughness and efficiency of gas treatment.

According to the utility model, the liquid inlet pipe and the liquid outlet pipe are arranged on one side of the alkali liquor tank, the PH sensor is arranged on the inner wall of the alkali liquor tank, the second valve and the liquid inlet pump are arranged on the liquid inlet pipe, the first valve and the liquid outlet pump are arranged on the liquid outlet pipe, the PH sensor can detect the PH value in the alkali liquor tank in real time, when the PH value of alkali liquor in the alkali liquor tank is lower than a preset value, the PH value of alkali liquor is utilized to influence the treatment effect of waste gas when alkali washing is carried out, the PH sensor transmits a signal to the PLC control cabinet, the PLC control cabinet controls the valve of the air inlet pipe to be closed, air inlet is stopped, then the first valve and the liquid outlet pump are opened, liquid and silt in the alkali liquor tank are discharged, after the discharge is completed, the first valve and the liquid outlet pump are closed, and the second valve and the liquid inlet pump are opened to refill new alkali liquor into the alkali liquor tank, so that the purpose of automatic alkali liquor replacement is realized, and the waste gas treatment efficiency is further improved.

According to the utility model, the stirring mechanism is arranged at the bottom in the alkali liquor tank, and comprises the stirring motor, one end of the stirring motor is in transmission connection with the stirring shaft and the stirring blade, so that the bottom in the alkali liquor tank can be stirred, waste gas can be conveniently and fully contacted with alkali liquor, and the alkali liquor washing efficiency is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the lye tank of the present utility model;

FIG. 3 is a schematic main sectional view of the alkaline liquid tank of the present utility model.

In the figure: 1. an outer housing; 2. an air inlet pipe; 3. a base tank; 4. a gas pipe; 5. a catalytic oxidation device; 6. an exhaust pump; 7. an exhaust pipe; 8. an exhaust gas detector; 9. a third valve; 10. a fourth valve; 11. stirring blades; 12. a liquid discharge pipe; 13. a liquid outlet pump; 14. a liquid inlet pipe; 15. a liquid inlet pump; 16. a liquid level sensor; 17. a PH sensor; 18. a PLC control cabinet; 19. an air return pipe; 20. a second valve; 21. a first valve.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, in an embodiment of the present utility model, a chemical fertilizer production waste gas treatment system includes an outer casing 1, an alkaline solution tank 3 is disposed in one end of the outer casing 1, an air inlet pipe 2 is connected in one side of an upper end of the alkaline solution tank 3, a catalytic oxidation device 5 is connected in one side of an upper end of the alkaline solution tank 3 through an air pipe 4, the catalytic oxidation device 5 includes a Pt catalyst layer, a TiO2 photocatalyst layer, a Ce-Zr solid solution layer and a ZSM-5 molecular sieve layer sequentially connected from bottom to top, and is used for performing catalytic purification treatment on waste gas, one end of the catalytic oxidation device 5 is connected with an exhaust pipe 7 through an exhaust pump 6, an exhaust gas detector 8 is mounted on the exhaust pipe 7, and an air return pipe 19 is connected between the exhaust pipe 7 and the alkaline solution tank 3, so that the treated gas can be detected, and the unqualified gas can be returned to the bottom of the alkaline solution tank 3 through the air return pipe 19 for re-treatment, the utility model is beneficial to improving the thoroughness and efficiency of gas treatment until the qualified gas is discharged, one side of the alkali liquor tank 3 is provided with a liquid inlet pipe 14 and a liquid outlet pipe 12, the inner wall of the alkali liquor tank 3 is provided with a PH sensor 17, the PH sensor 17 can detect the PH value in the alkali liquor tank 3 in real time, when the PH value of alkali liquor in the alkali liquor tank 3 is lower than a preset value, the PH sensor transmits signals to a PLC control cabinet 18, the PLC control cabinet 18 controls the valve of the air inlet pipe 2 to be closed, air inlet is stopped, then the first valve 21 and the liquid outlet pump 13 are opened, the liquid and the sludge in the alkali liquor tank 3 are discharged, after the discharging is finished, the first valve 21 and the liquid outlet pump 13 are closed, the second valve 20 and the liquid inlet pump 14 are opened to re-inject new alkali liquor into the alkali liquor tank 2, thereby realizing the purpose of automatic alkali liquor replacement, and being beneficial to further improving the efficiency of waste gas treatment, the stirring mechanism is arranged at the inner bottom of the alkali liquid tank 3, so that the inner bottom of the alkali liquid tank 3 can be stirred, waste gas and alkali liquid can be conveniently and fully contacted, and the alkali washing efficiency can be improved.

Preferably, the alkali liquor tank 3 is arranged as a cylindrical tank, and an upper end cover is arranged on the upper side of the alkali liquor tank 3, so that a certain amount of alkali liquor is conveniently stored for alkali washing treatment of waste gas.

Preferably, the stirring mechanism comprises a stirring motor, one end of the stirring motor is connected with a stirring shaft and a stirring blade 11 in a transmission manner, so that stirring treatment is conveniently carried out on the inner bottom of the alkali liquor tank 3, waste gas and alkali liquor are conveniently and fully contacted, and alkali washing efficiency is improved.

Preferably, the liquid inlet pipe 14 is provided with a second valve 20 and a liquid inlet pump 15, and the liquid outlet pipe 12 is provided with a first valve 21 and a liquid outlet pump 13, so that the opening and closing of the liquid inlet pipe 14 and the liquid outlet pipe 12 are convenient to control.

Preferably, the liquid level sensor 16 is installed on the outer side of the inner wall of the alkali liquor tank 3, and the liquid level sensor 16 and the PH sensor 17 are electrically connected with the PLC control cabinet 18 on the outer side of the alkali liquor tank 3, so that the water level in the alkali liquor tank 3 can be detected, and the purpose of automatically injecting liquid into the alkali liquor tank 3 to form alkali liquor with a certain height can be conveniently achieved.

Preferably, the third valve 9 is installed on the exhaust pipe 7, and the fourth valve 10 is installed on the air return pipe 19, so that the opening and closing of the exhaust pipe 7 or the air return pipe 19 can be controlled conveniently.

The working principle and the using flow of the utility model are as follows: the exhaust pipe 7 is provided with the exhaust gas detector 8, and the air return pipe 19 is connected between the exhaust pipe 7 and the alkali liquor tank 3, so that the treated gas can be detected and treated, and the unqualified gas can be returned to the bottom in the alkali liquor tank 3 through the air return pipe 19 for further treatment until the qualified gas is discharged, thereby being beneficial to improving the thoroughness and efficiency of gas treatment; through alkaline solution groove 3 one side is equipped with feed liquor pipe 14 and fluid-discharge tube 12, PH sensor 17 is installed to alkaline solution groove 3 inner wall, PH value in alkaline solution groove 3 can be detected in real time to PH sensor 17, when the PH value of the alkaline solution of department in alkaline solution groove 3 is less than the default, influence the treatment effect of waste gas when the alkaline solution is washed to the reuse this liquid, PH sensor gives PLC switch board 18 with the signal transmission, PLC switch board 18 will control the valve of air-supply line 2 and close, stop admitting air, then open first valve 21 and drain pump 13, discharge liquid and silt in the alkaline solution groove 3, after the discharge is accomplished, first valve 21 and drain pump 13 are closed, open second valve 20 and feed liquor pump 14 and pour into new alkaline solution again into in to alkaline solution groove 2, thereby realize automatic lye change's purpose, be favorable to further improving waste gas treatment's efficiency.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A chemical fertilizer production waste gas treatment system, comprising an outer shell (1), characterized in that: the utility model discloses a waste gas treatment device, including shell body (1), alkali lye groove (3), gas-supply pipe (4), gas-supply pipe (7) and stirring mechanism, shell body (1) one end is inside to be equipped with alkali lye groove (3), alkali lye groove (3) upper end one side internal connection has air-supply pipe (2), alkali lye groove (3) upper end one side is connected with catalytic oxidation device (5) through gas-supply pipe (4), catalytic oxidation device (5) one end is connected with blast pipe (7) through exhaust pump (6), install exhaust gas detection appearance (8) on blast pipe (7), and be connected with muffler (19) between blast pipe (7) and alkali lye groove (3), alkali lye groove (3) one side is equipped with feed liquor pipe (14) and fluid-discharge tube (12), PH sensor (17) are installed to alkali lye groove (3) inner wall, stirring mechanism is installed to the bottom in alkali lye groove (3).

2. The chemical fertilizer production waste gas treatment system of claim 1, wherein: the alkali liquor tank (3) is arranged into a cylindrical tank, and an upper end cover is arranged on the upper side of the alkali liquor tank (3).

3. The chemical fertilizer production waste gas treatment system of claim 1, wherein: the stirring mechanism comprises a stirring motor, and one end of the stirring motor is connected with a stirring shaft and stirring blades (11) in a transmission manner.

4. The chemical fertilizer production waste gas treatment system of claim 1, wherein: the liquid inlet pipe (14) is provided with a second valve (20) and a liquid inlet pump (15), and the liquid outlet pipe (12) is provided with a first valve (21) and a liquid outlet pump (13).

5. The chemical fertilizer production waste gas treatment system of claim 1, wherein: the liquid level sensor (16) is arranged on the outer side of the inner wall of the alkali liquor tank (3), and the liquid level sensor (16) is electrically connected with the PLC control cabinet (18) on the outer side of the alkali liquor tank (3).

6. The chemical fertilizer production waste gas treatment system of claim 1, wherein: the exhaust pipe (7) is provided with a third valve (9), and the return pipe (19) is provided with a fourth valve (10).