CN210448510U

CN210448510U - High tower granulation tail gas processing apparatus

Info

Publication number: CN210448510U
Application number: CN201921209092.9U
Authority: CN
Inventors: 王晓春; 蒋振华; 杨进昌; 刘仁军; 林伟荣
Original assignee: Lardmee Ningling Fertilizer Co ltd
Current assignee: Lardmee Ningling Fertilizer Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-05
Anticipated expiration: 2029-07-30

Abstract

The utility model provides a high tower granulation tail gas treatment device, which effectively solves the problem of insufficient tail gas treatment in the prior fertilizer production; the technical scheme includes that the device comprises a sealing cover with a downward opening, the sealing cover is buckled at the upper end of an exhaust port of a high tower, a plurality of vertically fixed cylindrical shells are arranged at the upper end of the shells, a piston rod which is vertical and can move up and down is arranged in each shell, a piston plate is fixed at the lower end of each piston rod, a gas one-way valve is mounted on each piston plate, a water tank is fixed on the outer side of each shell, chemical liquid medicine is arranged in each water tank, a rectangular shell is arranged at the bottom in a cavity of each water tank, a plurality of small holes are formed in the lower side plate of each rectangular shell, each rectangular shell is communicated with the side wall of the upper end of each shell through a pipeline, and each pipeline is provided with the gas one-way valve; a crankshaft is arranged above the cylindrical shell, a connecting rod is hinged to a crank throw on the crankshaft, and the crankshaft can drive the piston rod to move up and down through rotation.

Description

High tower granulation tail gas processing apparatus

Technical Field

The utility model relates to a chemical fertilizer production technical field, especially high tower granulation tail gas processing apparatus.

Background

Chemical industry has been an important production industry in industrial production, and because waste gas, waste water and waste residues generated in the production process have strong pollution properties, pollution and treatment are key and difficult points of most chemical enterprises. The ammonium phosphate is prepared by reacting wet-process phosphoric acid with ammonia, and performing preneutralization, tubular reactor, granulation, drying, crushing, screening and cooling, a large amount of drying tail gas, granulation tail gas, cooling tail gas, dedusting tail gas and the like are generated in the production process, the components of the ammonium phosphate are complex, the ammonium phosphate mainly contains toxic and harmful substances such as dust, ammonia, fluorine and the like, and the environment is seriously polluted. At present, most ammonium phosphate production enterprises adopt a shower method for treatment, but the method needs insufficient absorption of harmful substances in tail gas, has various requirements on the height of an emission tower, is used for installing multilayer shower, improves the absorption rate, even if part of the harmful substances are emitted into the atmosphere along with gas, and can not meet the requirements of the current measures along with the gradual strictness of industrial emission standards.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a high tower granulation tail gas processing apparatus, the effectual insufficient problem of tail gas treatment in having solved current chemical fertilizer production.

The technical proposal for solving the problem is that the device comprises a sealing cover with a downward opening, the sealing cover is buckled at the upper end of an exhaust port of a high tower, a plurality of vertically fixed cylindrical shells are arranged at the upper end of the shells, a piston rod which is vertical and can move up and down is arranged in the shells, a piston plate is fixed at the lower end of the piston rod, a plurality of gas one-way valves are arranged on the piston plate, when the piston plate moves down, tail gas can enter a cavity formed by the shell and the piston plate through the check valve on the piston plate, a water tank is fixed on the outer side of the shell, chemical liquid medicine is filled in the water tank, a rectangular shell is arranged at the bottom in the water tank cavity, a plurality of fine small holes are formed in the lower side plate of the rectangular shell, the rectangular shell is communicated with the side wall of the upper end of the shell through a pipeline, a gas check valve is arranged on the pipeline, when the piston moves upwards, tail gas entering a cavity formed by the shell and the piston plate enters the rectangular box through the pipeline and is discharged from a small hole at the lower end of the rectangular box; a horizontal crankshaft capable of rotating actively is arranged above the cylindrical shell, a connecting rod is hinged to a crank throw on the crankshaft, the lower end of the connecting rod is hinged to the upper end of the piston rod, and the crankshaft can drive the piston rod to move up and down through rotation.

The utility model discloses utilize piston and a plurality of check valve that reciprocate with the tail gas pressure boost to in the chemical liquid medicine of impressing, and by the numerous aperture discharge of rectangle box lower extreme, improve the area of contact of tail gas and chemical liquid medicine, improve the absorptivity, and dust impurity in the tail gas is detained in the liquid medicine, for traditional shower method, this scheme has improved tail gas treatment efficiency greatly, reduces to the atmosphere pollution, and adaptability is wide.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a part of the structure of the present invention.

Fig. 3 is a schematic view of the connection between the cover and the housing according to the present invention.

Detailed Description

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.

As shown in figures 1 to 3, the utility model comprises a sealing cover 1 with a downward opening, the sealing cover 1 is buckled at the upper end of an exhaust port of a high tower, a plurality of vertically fixed cylindrical shells 2 are arranged at the upper end of the shells 2, a piston rod 3 which is vertical and can move up and down is arranged in the shells 2, a piston plate 4 is fixed at the lower end of the piston rod 3, a plurality of gas one-way valves are arranged on the piston plate 4, when the piston plate 4 moves downwards, tail gas can enter a cavity formed by the shells 2 and the piston plate 4 through the one-way valve on the piston plate 4, a water tank 5 is fixed at the outer side of the shell 2, chemical liquid medicine is arranged in the water tank 5, a rectangular shell 6 is arranged at the bottom in the cavity of the water tank 5, a plurality of fine small holes are arranged on the lower side plate of the rectangular shell 6, the rectangular shell 6 is communicated with the side wall at the upper end of the shells 2 through a pipeline 7, a gas one-way valve is arranged on the pipeline 7, and is discharged from a small hole at the lower end of the rectangular box; there is horizontal form and can initiative pivoted bent axle 8 above the cylindrical shell, and articulated on the crank throw on bent axle 8 have connecting rod 9, and connecting rod 9 lower extreme is articulated with piston rod 3 upper end, and bent axle 8 rotation can drive piston rod 3 and reciprocate.

In order to install the crankshaft 8, the upper end of the cylindrical shell is provided with a U-shaped plate 10 with a downward opening, the U-shaped plate 10 is fixed with the cylindrical shell, two ends of the crankshaft 8 penetrate through two side plates of the U-shaped plate 10, one end of the crankshaft 8 is connected with a motor, and the motor is fixed on the U-shaped plate 10.

The lower end of the water tank 5 is provided with a water outlet.

The crankshaft 8 is provided with two crank throws, and the phase difference between the two crank throws is 180 degrees, so that the motion directions of the two piston rods 3 are opposite.

It is worth noting that the chemical liquid in the water tank 5 can absorb harmful substances in the tail gas, and the rectangular shell 6 is completely immersed by the chemical liquid; the chemical liquid medicine needs to be replaced periodically, and a cavity is formed by the shell 2 and the piston plate 4; and a sealing ring is arranged on the outer edge of the piston plate 4, so that the piston plate 4 and the side wall of the shell 2 are sealed.

When the device is used, the opening of the sealing cover 1 of the device is arranged at the upper end of the exhaust port of the high tower, a motor power supply is switched on, the motor drives the crankshaft 8 to rotate, the crankshaft 8 drives the piston rod 3 to move up and down through the connecting rod 9, the piston rod 3 drives the piston plate 4 to move up and down, when the piston plate 4 moves down, the check valve on the pipeline 7 is closed, the check valve on the piston plate 4 is opened, when the piston plate 4 moves down, the volume of a cavity formed by the shell 2 and the piston plate 4 is increased, the air pressure in the cavity is reduced, so that tail gas in the high tower is sucked into the cavity, when the piston plate 4 moves up, the volume of the cavity is reduced, the air pressure in the cavity is increased, the tail gas is forced to enter the rectangular shell 6 through the pipeline 7 and then is discharged into chemical liquid medicine through the small hole at the lower end of the rectangular shell 6, harmful substances in the. In the above process, the two housings 2 work alternately, so that the exhaust emission is performed stably.

The utility model has the advantages that:

1. the utility model discloses utilize piston and a plurality of check valve that reciprocate with the tail gas pressure boost to in the chemical liquid medicine of impressing, and by the numerous aperture discharge of rectangle box lower extreme, improve the area of contact of tail gas and chemical liquid medicine, improve the absorptivity, and dust impurity in the tail gas is detained in the liquid medicine, for traditional shower method, this scheme has improved tail gas treatment efficiency greatly, reduces to the atmosphere pollution, and adaptability is wide.

2. The utility model discloses simple process, it is convenient to make, does not have special requirement to the height of high tower, and the high tower of being convenient for is built.

3. The utility model discloses also can directly be used for on current high tower, tail gas is now handled through current shower method, then makes remaining harmful substance absorbed through this device again, reduces environmental pollution as far as possible.

Claims

1. The high tower granulation tail gas treatment device is characterized by comprising a sealing cover (1) with a downward opening, wherein the sealing cover (1) is buckled at the upper end of an exhaust port of a high tower, a plurality of vertically fixed cylindrical shells (2) are arranged at the upper end of the shells (2), a vertical piston rod (3) capable of moving up and down is arranged in each shell (2), a piston plate (4) is fixed at the lower end of each piston rod (3), a plurality of gas one-way valves are installed on each piston plate (4), when each piston plate (4) moves downwards, tail gas can enter a cavity formed by the shells (2) and the piston plates (4) through the one-way valves on the piston plates (4), a water tank (5) is fixed at the outer side of each shell (2), chemical liquid medicine is arranged in each water tank (5), a rectangular shell (6) is arranged at the bottom in the cavity of each water tank (5), a plurality of fine small holes are formed in the lower side plate of each rectangular shell (6), and the rectangular shell (6), a gas one-way valve is arranged on the pipeline (7), when the piston moves upwards, tail gas entering a cavity formed by the shell (2) and the piston plate (4) enters the rectangular box through the pipeline (7) and is discharged from a small hole at the lower end of the rectangular box; there is horizontal form and can initiative pivoted bent axle (8) cylinder shell top, and articulated on the crank throw on bent axle (8) have connecting rod (9), and connecting rod (9) lower extreme is articulated with piston rod (3) upper end, and bent axle (8) rotation can drive piston rod (3) and reciprocate.

2. The tail gas treatment device for high tower granulation according to claim 1, wherein the upper end of the cylindrical shell is provided with a U-shaped plate (10) with a downward opening, the U-shaped plate (10) is fixed with the cylindrical shell, two ends of the crankshaft (8) penetrate through two side plates of the U-shaped plate (10), one end of the crankshaft (8) is connected with a motor, and the motor is fixed on the U-shaped plate (10).

3. The tower granulation tail gas treatment device according to claim 1, wherein the lower end of the water tank (5) is provided with a water outlet.

4. The device for treating tail gas from high tower granulation according to claim 1, characterized in that the crankshaft (8) has two cranks, the phase difference between the two cranks is 180 ° so that the two piston rods (3) move in opposite directions.