CN214389557U

CN214389557U - Flue gas denitration purification treatment equipment

Info

Publication number: CN214389557U
Application number: CN202022790097.4U
Authority: CN
Inventors: 张利平
Original assignee: Nanjing Ruiyi Environmental Technology Co ltd
Current assignee: Nanjing Ruiyi Environmental Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-10-15
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a flue gas denitration purification treatment equipment relates to flue gas denitration purification equipment technical field, for solving current high temperature under to the difficult problem of clearance and purifying effect relatively poor of smoke and dust impurity. The inside of shell is provided with the SCR denitration catalyst, dust collector is installed to one side of shell lower extreme, it is sealed fixed through the connecting pipe between dust collector and the shell, one side of dust collector is provided with the flue gas and advances the pipe, the fixed dust collecting box that is provided with of dust collector's lower extreme, ammonia mixing arrangement is installed to the upper end of shell, the fixed mounting bracket that is provided with in inside below of ammonia mixing arrangement, the column spinner is installed to the upper end of mounting bracket, and the column spinner passes through the bearing rotation with the mounting bracket and is connected, the fixed puddler that is provided with in both sides of column spinner.

Description

Flue gas denitration purification treatment equipment

Technical Field

The utility model relates to a flue gas denitration clarification plant technical field specifically is a flue gas denitration purification treatment equipment.

Background

The importance of preventing environmental pollution has been pointed out as a worldwide problem. With the development of modern industrial production and the improvement of living standard, air pollution becomes a very concerned problem, sulfur dioxide is one of important pollution sources of the air, and the pollution is extremely harmful, so in the seventies, the research on flue gas desulfurization technology is listed as the key point for preventing and treating air pollution by many countries, some practical treatment devices on industrial scale are built successively, and the flue gas denitration principle is that NO is oxidized into NO2 by using an oxidant, and the generated NO2 is absorbed by water or alkaline solution, so that denitration is realized.

However, in order to avoid excessive participation of dust and impurities in the catalytic reaction, the conventional flue gas denitration purification treatment equipment is generally provided with a dust removal mechanism, the optimal reaction temperature of the flue gas entering a flue gas cylinder and the catalyst is 130 ℃., the single dust removal mechanism cannot work at a high temperature for a long time, the temperature can be reduced through spray dust removal, the energy loss is caused by subsequent reheating, and in addition, harmful substances in the flue gas cannot be reduced to the greatest extent through the single reaction structure, so the conventional requirements are not met, and the flue gas denitration purification treatment equipment is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flue gas denitration purification treatment equipment to solve the difficult clearance of smoke and dust impurity and the relatively poor problem of purifying effect under the high temperature that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flue gas denitration purification treatment equipment, includes the shell, the inside of shell is provided with SCR denitration catalyst, dust collector is installed to one side of shell lower extreme, it is sealed fixed through the connecting pipe between dust collector and the shell, one side of dust collector is provided with the flue gas and advances the pipe, dust collector's the fixed dust collecting box that is provided with of lower extreme, ammonia mixing arrangement is installed to the upper end of shell, the fixed mounting bracket that is provided with in inside below of ammonia mixing arrangement, the column spinner is installed to the upper end of mounting bracket, and the column spinner passes through the bearing with the mounting bracket and rotates and be connected, the fixed puddler that is provided with in both sides of column spinner.

Preferably, the dust filtering nets are installed on two sides of the interior of the dust removing device, one of the dust filtering nets is provided with an ionizer at the rear end, the ionizers are three, the dust collecting plates are installed at the rear ends of the ionizers, and the dust collecting plates are four.

Preferably, a driving motor is fixedly installed on one side of the ammonia mixing device, and an output shaft of the driving motor is in transmission connection with the rotating column through a transmission belt.

Preferably, the ammonia mixing device is internally provided with five baffle plates which are distributed in a staggered manner, and the baffle plates are welded and fixed with the ammonia mixing device.

Preferably, the other side of the shell is provided with an ammonia evaporator, and the ammonia evaporator and the ammonia mixing device are sealed and fixed through an ammonia inlet pipe.

Preferably, an exhaust pipe is arranged on one side of the upper end of the ammonia mixing device.

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

1. the utility model is provided with the dust removing device, the smoke enters the dust removing device through the smoke inlet pipe, the ionizer and the dust collecting plate are powered on, when the smoke passes through the dust filtering net, the dust filtering net can block larger particle sundries in the smoke, then when the dust particles in the smoke pass through the ionizer, the dust particles collide with positive and negative ions and electrons between electrodes to form charge, the dust particles with the electrons and the ions move to opposite electrodes under the action of electric field force and are deposited on the dust collecting plate, when the smoke inlet pipe stops air inlet, the ionizer and the dust collecting plate power supply are closed, the dust particles adsorbed on the dust collecting plate fall into the dust collecting box under the action of gravity, so as to be conveniently concentrated, in addition, the mesh number of the rear end dust filtering net is larger than that of the front end dust filtering net, the subsequent dust can be finely blocked again, and by the way, the dust removing work can be carried out in a high-temperature environment, and the dust removal effect is good.

2. The utility model discloses an adopt the purification mode that SCR denitration catalyst and ammonia combined together, flue gas through removing dust gets into to the shell, contact with SCR denitration catalyst, thereby make the material that the reducing agent selectivity takes place chemical reaction with the nitrogen oxide in the flue gas under the uniform temperature, in order to form purifying effect, get into to ammonia mixing arrangement after the reaction, the ammonia that the ammonia evaporimeter produced enters into to inside through the ammonia admission pipe, the ammonia can further react with the residual material in the flue gas, cooperate with SCR denitration catalyst, the at utmost reduces the pollutants in the flue gas.

3. The utility model discloses an inside at ammonia mixing arrangement is provided with the mixing mechanism, through opening driving motor, driving motor's output shaft passes through the drive belt and drives the column spinner and rotate, and then the puddler that the drive is located the column spinner both sides rotates, ammonia and flue gas get into to inside the ammonia mixing arrangement simultaneously this moment, mix both rapidly under the effect of puddler, in order to improve holistic reaction rate, be provided with a plurality of baffling boards that are the dislocation distribution simultaneously in the upper end in inside, the baffling board can block ascending gas production, make it be complicated circuitous motion in inside, the reaction time of ammonia and flue gas has further been improved, thereby purifying effect has been improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the dust removing device of the present invention;

fig. 3 is a partially enlarged view of the area a of the present invention.

In the figure: 1. a housing; 2. a dust removal device; 3. an ammonia gas mixing device; 4. an SCR denitration catalyst; 5. a connecting pipe; 6. a flue gas inlet pipe; 7. a dust filter screen; 8. an ionizer; 9. a dust collecting plate; 10. a dust collection box; 11. a baffle plate; 12. a stirring rod; 13. a drive motor; 14. an ammonia gas evaporator; 15. ammonia gas inlet pipe; 16. an exhaust pipe; 17. a mounting frame; 18. a spin column; 19. a transmission belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a flue gas denitration purification treatment equipment, which comprises an outer shell 1, the inside of shell 1 is provided with SCR denitration catalyst 4, dust collector 2 is installed to one side of shell 1 lower extreme, it is sealed fixed through connecting pipe 5 between dust collector 2 and the shell 1, one side of dust collector 2 is provided with flue gas inlet pipe 6, the fixed dust collection box 10 that is provided with of lower extreme of dust collector 2, ammonia mixing arrangement 3 is installed to the upper end of shell 1, the fixed mounting bracket 17 that is provided with in inside below of ammonia mixing arrangement 3, column spinner 18 is installed to the upper end of mounting bracket 17, and column spinner 18 passes through the bearing rotation with mounting bracket 17 and is connected, the fixed puddler 12 that is provided with in both sides of column spinner 18.

Further, dust filter 7 is all installed to the inside both sides of dust collector 2, and ionizer 8 is installed to one of them dust filter 7's rear end, and ionizer 8 installs threely, and dust collecting plate 9 is installed to ionizer 8's rear end, and dust collecting plate 9 installs four, through this kind of mode, can carry out dust removal work in high temperature environment, and dust removal effect is good.

Further, one side fixed mounting of ammonia mixing arrangement 3 has driving motor 13, and is connected through drive belt 19 transmission between driving motor 13's the output shaft and the column spinner 18, driving motor 13's output shaft passes through drive belt 19 and drives column spinner 18 and rotate, and then the drive is located the puddler 12 of column spinner 18 both sides and rotates, ammonia and flue gas enter into to ammonia mixing arrangement 3 simultaneously this moment inside, mix both rapidly under the effect of puddler 12, in order to improve holistic reaction rate.

Further, the inside of ammonia mixing arrangement 3 is provided with baffling board 11, and baffling board 11 is provided with five, and is the dislocation distribution between the baffling board 11, and baffling board 11 and ammonia mixing arrangement 3 welded fastening, baffling board 11 can block rising gas production, makes it do complicated circuitous motion inside, has further improved the reaction time of ammonia and flue gas to purifying effect has been improved.

Further, the opposite side of shell 1 is provided with ammonia evaporator 14, and ammonia evaporator 14 and ammonia mixing arrangement 3 advance the pipe 15 through ammonia and seal fixedly, and the ammonia that ammonia evaporator 14 produced advances the pipe 15 through ammonia and enters into to inside, and the ammonia can further react with the residual material in the flue gas, cooperatees with SCR denitration catalyst 4, and the at utmost reduces the pollutants in the flue gas.

Further, an exhaust pipe 16 is provided on one side of the upper end of the ammonia gas mixing device 3.

The working principle is as follows: when the dust collection box is used, smoke enters the dust collection device 2 through the smoke inlet pipe 6, the ionizer 8 and the dust collection plate 9 are powered on, when the smoke passes through the dust filter 7, the dust filter 7 can block large particle impurities in the smoke, then when dust particles in the smoke pass through the space between the ionizers 8, the dust particles collide with positive and negative ions and electrons between the electrodes to form charged electricity, the dust particles with the electrons and the ions move to opposite electrodes under the action of electric field force and are deposited on the dust collection plate 9, when the smoke inlet pipe 6 stops air inlet, the power supply of the ionizer 8 and the dust collection plate 9 is turned off, the dust particles adsorbed on the dust collection plate 9 fall into the dust collection box 10 under the action of gravity so as to be conveniently subjected to centralized treatment, in addition, the mesh number of the rear-end dust filter 7 is larger than that of the front-end dust filter 7, later dust can be finely blocked again, and the dedusted smoke enters the shell 1, contacting with SCR denitration catalyst 4, thereby impel reducing agent selectively and nitrogen oxide in the flue gas to take place the material of chemical reaction under certain temperature, in order to form the purifying effect, enter into ammonia mixing arrangement 3 after the reaction, the ammonia that the ammonia evaporimeter 14 produced enters into inside through ammonia inlet tube 15, ammonia can further react with the residual material in the flue gas, open driving motor 13 simultaneously, the output shaft of driving motor 13 drives the column spinner 18 through drive belt 19 and rotates, and then drive the puddler 12 that is located the column spinner 18 both sides and rotate, ammonia and flue gas enter into inside ammonia mixing arrangement 3 simultaneously at this moment, mix both rapidly under the effect of puddler 12, in order to improve holistic reaction rate, the upper end in inside is provided with a plurality of baffling boards 11 that are the dislocation distribution simultaneously, baffling board 11 can produce and block rising gas, the device makes the device do complex circuitous motion inside, further improves the reaction time of ammonia and flue gas, thereby improving the purification effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a flue gas denitration purification treatment equipment, includes shell (1), its characterized in that: the inside of shell (1) is provided with SCR denitration catalyst (4), dust collector (2) are installed to one side of shell (1) lower extreme, it is sealed fixed through connecting pipe (5) between dust collector (2) and shell (1), one side of dust collector (2) is provided with the flue gas and advances pipe (6), the fixed dust collecting box (10) that is provided with of lower extreme of dust collector (2), ammonia mixing arrangement (3) are installed to the upper end of shell (1), the fixed mounting bracket (17) that is provided with in inside below of ammonia mixing arrangement (3), column spinner (18) are installed to the upper end of mounting bracket (17), and column spinner (18) and mounting bracket (17) rotate through the bearing and be connected, the fixed puddler (12) that is provided with in both sides of column spinner (18).

2. The flue gas denitration purification treatment device of claim 1, characterized in that: dust filter net (7), one of them are all installed to the inside both sides of dust collector (2) the rear end of dust filter net (7) is installed ionizer (8), and ionizer (8) installs threely, dust collecting plate (9) are installed to the rear end of ionizer (8), and four are installed to dust collecting plate (9).

3. The flue gas denitration purification treatment device of claim 1, characterized in that: and a driving motor (13) is fixedly installed on one side of the ammonia mixing device (3), and an output shaft of the driving motor (13) is in transmission connection with the rotating column (18) through a transmission belt (19).

4. The flue gas denitration purification treatment device according to claim 3, characterized in that: baffle plates (11) are arranged in the ammonia mixing device (3), five baffle plates (11) are arranged, the baffle plates (11) are distributed in a staggered mode, and the baffle plates (11) are welded and fixed with the ammonia mixing device (3).

5. The flue gas denitration purification treatment device of claim 1, characterized in that: the other side of the shell (1) is provided with an ammonia evaporator (14), and the ammonia evaporator (14) and the ammonia mixing device (3) are sealed and fixed through an ammonia inlet pipe (15).

6. The flue gas denitration purification treatment device of claim 1, characterized in that: and an exhaust pipe (16) is arranged on one side of the upper end of the ammonia mixing device (3).