CN218981070U

CN218981070U - Desulfurization and mercury removal waste gas treatment device

Info

Publication number: CN218981070U
Application number: CN202320172022.0U
Authority: CN
Inventors: 黄朱勇; 许云育
Original assignee: Fujian Lewo Environmental Protection Technology Co ltd
Current assignee: Fujian Lewo Environmental Protection Technology Co ltd
Priority date: 2023-02-04
Filing date: 2023-02-04
Publication date: 2023-05-09
Anticipated expiration: 2033-02-04

Abstract

The utility model discloses a desulfurization and mercury removal waste gas treatment device which comprises a spray tower body, a stuffing box and a water tank, wherein the stuffing box and the water tank are fixedly arranged at the lower parts of two sides of the spray tower body, the spray tower body is sequentially provided with a circulating water tank, a first spray device, a second spray device, a mercury removal device, a dehydrator and a silk screen mist removal layer from bottom to top, the bottom of the circulating water tank is provided with a water pump which is communicated with the first spray device and the second spray device, the top of the circulating water tank is connected with the stuffing box, the top and the bottom of the mercury removal device are respectively provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are communicated with the water tank. According to the utility model, the buffer cover is arranged through the air inlet, so that waste gas is diffused in the spray tower body, the waste gas is desulfurized through the circulating water tank, the first spray device and the second spray device, and the content of the desulfurizing agent in the circulating water tank is ensured through the quantitative valve; delivering the mercury removal agent to a mercury removal spray hood by a pressure pump to precipitate the waste gas to a water tank; the utility model has novel structure and ingenious design, and is suitable for popularization.

Description

Desulfurization and mercury removal waste gas treatment device

Technical Field

The utility model relates to the technical field of waste gas treatment tools, in particular to a desulfurization and mercury removal waste gas treatment device.

Background

The waste gas is mostly industrial waste gas, flue gas and the like, along with the continuous development of society, more and more factories can generate dust and particle pollutants in the production process of the factories, the waste gas contains sulfur dioxide, mercury and other elements, the discharge of the waste gas can cause serious pollution and damage to the environment, and meanwhile, the human body is inhaled to generate direct harm, so that the physical health and living environment of people are greatly influenced, the waste gas is required to be subjected to desulfurization and mercury removal treatment, and the existing mature and representative desulfurization technology is limestone-gypsum method, ammonia method, double-alkali method and the like, and the mercury removal technology is a precipitation method, an oxidation method and the like. The treatment methods generally can only independently treat sulfur, nitrogen and mercury, have complicated procedures and high purification cost, and in the use process of the sulfur and mercury removal device, because uninterrupted spraying is needed, too much water resource is consumed, and aiming at the problem, the inventor designs an exhaust gas treatment device for desulfurizing and removing mercury to solve the problem.

In order to realize that sulfur and mercury in the waste gas are filtered and treated in one device at one time, china patent net, a mercury removal device (CN 206027369U) for waste gas treatment; through the shell, a first guide plate is arranged on the lower side of the shell and is obliquely arranged right above, a rotating shaft is arranged on the lower side of the first guide plate, the right end of the rotating shaft is connected with a motor positioned on the inner side wall of the shell, a plurality of stirring blades are uniformly arranged on the rotating shaft, and a first adsorption liquid is arranged below the first guide plate; the first guide plate top is equipped with the second guide plate, and the second guide plate slope sets up to upper left, and second guide plate below is equipped with the shower, has evenly arranged a plurality of nozzles on the shower, and the shower is linked together with the high-pressure pump that is located first guide plate upside through the pipeline, and first guide plate top is equipped with the second adsorption liquid. The utility model ensures that sulfur and mercury in the waste gas are filtered and adsorbed in one device at one time, saves the investment of equipment and improves the treatment effect of the waste gas.

The scheme still has some shortages in the application, because in the desulfurization and mercury removal process of waste gas, chemical reactants or liquid are required to be used and are always consumed in the use process, the problems of replacement and addition are required to be considered, the problem of inconvenient maintenance is easy to occur, meanwhile, because the chemical reagents used for sulfur removal and mercury removal are different, the problems of influence on the use effect caused by mutual mixing are also required to be separated in a sealing way, the structure of the desulfurization and mercury removal waste gas treatment device is required to be improved, the desulfurization and mercury removal device has better desulfurization and mercury removal effects, has an environment-friendly function, and further improves the practicability of the device.

Disclosure of Invention

The utility model discloses a desulfurization and mercury removal waste gas treatment device, which mainly aims to overcome the defects and shortcomings in the prior art.

The technical scheme adopted by the utility model is as follows:

the utility model provides a desulfurization removes exhaust treatment device of mercury, includes spray column body, packing box and water tank, the packing box with the water tank set firmly respectively in spray column body both sides lower part, the spray column body is from supreme circulating water tank, first spray set, second spray set, mercury removal device, dehydrator and silk screen defogging layer of being equipped with down in proper order, the circulating water tank bottom be equipped with the water pump and through the pipeline respectively with first spray set, second spray set intercommunication, the circulating water tank top pass through the pipeline with the packing box is connected, mercury removal device top and bottom are equipped with inlet tube and outlet pipe respectively, the inlet tube with the outlet pipe respectively with the water tank intercommunication.

Furthermore, the stuffing box is provided with a pipeline which is higher than the circulating water tank and is connected with the circulating water tank, the pipeline is of an S-shaped structure, and a quantitative valve is arranged on the S-shaped structure.

Furthermore, a connecting pipeline is arranged in the S-shaped structure pipeline, the quantitative valve is a rotatable spheroid, a communicating pipeline is correspondingly arranged in the middle of the quantitative valve, and the communicating pipeline is movably communicated with the connecting pipeline.

Furthermore, the lower part of one side of the spray tower body is provided with an air inlet, and the tail end of one inward side of the air inlet is provided with a buffer cover.

Furthermore, a pressure pump is arranged in the middle of the water outlet pipe.

Further, the mercury removal device comprises a mercury removal spray cover at the upper part and a recovery water tank at the lower part, wherein arc-shaped exhaust covers are arranged at two sides of the recovery water tank, and through holes are formed in the upper parts of the arc-shaped exhaust covers.

Furthermore, the mercury removal spray cover is communicated with the water outlet pipe, and the lower part of one side of the recovery water tank is communicated with the water inlet pipe.

As can be seen from the above description of the present utility model, the present utility model has the following advantages compared with the prior art:

firstly, a buffer cover is arranged through an air inlet, so that waste gas is diffused at the lower part of a spray tower body after entering, and then a circulating water tank is arranged at the bottom of the spray tower body and is connected with a first spray device and a second spray device, so that primary desulfurization and secondary desulfurization are carried out on the waste gas, the structure is simple, the desulfurization effect is good, simplicity and practicability are realized, and a desulfurizing agent can be quantitatively injected into the circulating water tank through a stuffing box and a quantitative valve, so that the content of the desulfurizing agent in the circulating water tank is ensured; then, the desulfurized waste gas is discharged upwards through the arc exhaust hood, meanwhile, the mercury removing agent is conveyed to the mercury removing spray hood through the pressure pump, the mercury removing spray hood forms downward spraying, the waste gas is precipitated into the recycling water tank and finally flows to the water tank for precipitation, the mercury removing effect is achieved, the mercury can be circularly removed through the structure, finally, the purified gas subjected to desulfurization and mercury removal is respectively dehydrated through the dehydrator and demisted through the silk screen demisting layer, and the flue gas is discharged from the top of the spray tower body.

Drawings

Fig. 1 is a schematic diagram of the front view structure of the present utility model.

FIG. 2 is a schematic diagram of the connection structure of the "S" shaped conduit and the metering valve of the present utility model.

Fig. 3 is a schematic top view of the mercury removal spray shield of the present utility model.

FIG. 4 is a schematic view of the structure of the arc-shaped exhaust hood of the present utility model.

Detailed Description

Specific embodiments of the present utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 4, an exhaust gas treatment device for desulfurizing and removing mercury comprises a spray tower body 1, a stuffing box 2 and a water tank 3, wherein the stuffing box 2 and the water tank 3 are respectively and fixedly arranged at the lower parts of two sides of the spray tower body 1, the spray tower body 1 is sequentially provided with a circulating water tank 11, a first spray device 12, a second spray device 13, a mercury removal device 14, a dehydrator 15 and a silk screen mist removal layer 16 from bottom to top, the bottom of the circulating water tank 11 is provided with a water pump 17 and is respectively communicated with the first spray device 12 and the second spray device 13 through pipelines, the top of the circulating water tank 11 is connected with the stuffing box 2 through pipelines, the top and the bottom of the mercury removal device 14 are respectively provided with a water inlet pipe 4 and a water outlet pipe 5, and the water inlet pipe 4 and the water outlet pipe 5 are respectively communicated with the water tank 3.

Furthermore, the stuffing box 2 is provided with an S-shaped structure pipeline 6 which is higher than the circulating water tank 11 and is connected with the circulating water tank, and the S-shaped structure pipeline 6 is provided with a quantitative valve 61.

Furthermore, a connecting pipeline 62 is arranged in the S-shaped structural pipeline 6, the quantitative valve 61 is a rotatable spheroid, a communicating pipeline 63 is correspondingly arranged in the middle of the quantitative valve 61, and the communicating pipeline 63 is movably communicated with the connecting pipeline 62.

Further, the lower part of one side of the spray tower body 1 is provided with an air inlet 7, and the tail end of one inward side of the air inlet 7 is provided with a buffer cover 8.

Further, a pressure pump 9 is arranged in the middle of the water outlet pipe 5.

Further, the mercury removal apparatus 14 includes an upper mercury removal shower cap 141 and a lower recovery water tank 142, wherein arc-shaped exhaust caps 143 are disposed on both sides of the recovery water tank 142, and through holes 144 are disposed on the upper portion of the arc-shaped exhaust caps 143.

Further, the mercury removal shower cover 141 is connected to the water outlet pipe 5, and a lower portion of the water recovery tank 142 is connected to the water inlet pipe 4.

Specific examples:

firstly, waste gas enters the spray tower body 1 through the air inlet 7, firstly, the upward pressure is buffered and slowed down through the buffer cover 8, so that the waste gas is better diffused in the spray tower body 1, then, the desulfurizing agent in the circulating water tank 11 is pumped to the first spray device 12 and the second spray device 13 through the water pump 17, firstly, the waste gas is subjected to primary and secondary desulfurization treatment, meanwhile, the desulfurizing agent in the stuffing box 2 is quantitatively injected into the circulating water tank 11 through the quantitative valve 61, the content of the desulfurizing agent in the circulating water tank 11 is ensured, then, the desulfurized waste gas is discharged upwards through the arc-shaped exhaust covers 143 on two sides of the recovering water tank 142, is sucked out from the water outlet pipe 5 of the water tank 3 through the mercury removal agent and is conveyed to the mercury removal spray cover 9 through the pressure pump 9, is sprayed downwards through the mercury removal spray cover 141, so that the waste gas is precipitated into the recovering water tank 142, and flows to the water tank 3 through the water inlet pipe 4 for precipitation, and finally, the purified gas subjected to desulfurization and mercury removal is respectively dehydrated through the dehydrator wire mesh 16 for demisting through the dehydrator 15, and discharged from the top of the spray tower body 1.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the design concept of the present utility model is not limited thereto, and any insubstantial modifications made by the present utility model shall fall within the scope of the present utility model.

Claims

1. An exhaust treatment device for desulfurizing and removing mercury, which is characterized in that: including spray tower body, packing box and water tank, the packing box with the water tank set firmly respectively in spray tower body both sides lower part, the spray tower body is from supreme circulating water tank, first spray set, second spray set, mercury removal device, dehydrator and silk screen defogging layer of being equipped with down in proper order, the circulating water tank bottom be equipped with the water pump and through the pipeline respectively with first spray set, second spray set intercommunication, the circulating water tank top pass through the pipeline with the packing box is connected, mercury removal device top and bottom are equipped with inlet tube and outlet pipe respectively, the inlet tube with the outlet pipe respectively with the water tank intercommunication.

2. The desulfurization and mercury removal exhaust gas treatment device according to claim 1, wherein: the stuffing box is provided with a pipeline which is higher than the circulating water tank and is connected with the circulating water tank, the pipeline is of an S-shaped structure, and a quantitative valve is arranged on the S-shaped structure.

3. The desulfurization and mercury removal exhaust gas treatment device according to claim 2, wherein: the quantitative valve is a rotatable spheroid, a communicating pipeline is correspondingly arranged in the middle of the quantitative valve, and the communicating pipeline is movably communicated with the connecting pipeline.

4. The desulfurization and mercury removal exhaust gas treatment device according to claim 1, wherein: the lower part of one side of the spray tower body is provided with an air inlet, and the tail end of one inward side of the air inlet is provided with a buffer cover.

5. The desulfurization and mercury removal exhaust gas treatment device according to claim 1, wherein: and a pressure pump is arranged in the middle of the water outlet pipe.

6. The desulfurization and mercury removal exhaust gas treatment device according to claim 1, wherein: the mercury removal device comprises a mercury removal spray cover at the upper part and a recovery water tank at the lower part, wherein arc-shaped exhaust covers are arranged at two sides of the recovery water tank, and through holes are formed in the upper parts of the arc-shaped exhaust covers.

7. The desulfurization and mercury removal exhaust gas treatment device according to claim 6, wherein: the mercury removal spray cover is communicated with the water outlet pipe, and the lower part of one side of the recovery water tank is communicated with the water inlet pipe.