CN209771805U

CN209771805U - Purging steam subsequent treatment system

Info

Publication number: CN209771805U
Application number: CN201920319525.XU
Authority: CN
Inventors: 杨强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2019-12-13
Anticipated expiration: 2029-03-13

Abstract

The utility model provides a pair of sweep steam follow-up processing system, including sweeping steam collecting pipe, cyclone, heat transfer device and acid dip pickle, sweep the cyclone that the steam collecting pipe communicates in cyclone, the discharge gate of cyclone lower part passes through pipeline intercommunication heat transfer device's feed inlet, and the induction-pipe on cyclone upper portion communicates in acid dip pickle's air inlet. Can eradicate the coking through cyclone and acid dip pickle and sweep harmful substance such as steam, foul smell and coke breeze in the steam, guarantee the harmlessness of exhaust gas, reduce the atmosphere pollution, improve coking plant production operational environment, guarantee that the staff is healthy, carry out recycle, energy-concerving and environment-protective to the heat that sweeps separation material in the steam through heat transfer device simultaneously, the utility model discloses an acid dip pickle can be according to demand adjustment length, but also can the multistage use by the single-stage use, can adopt to spray liquid intermittent type circulation and use also can continuous dynamic flow, and it is convenient to switch, adapts to the gas switching under the different operating modes.

Description

purging steam subsequent treatment system

the technical field is as follows:

The utility model relates to a coking plant steam treatment technical field, concretely relates to sweep steam follow-up processing system.

Background art:

In modern coking production, a large amount of raw coke oven gas and coke oven gas can be generated, and an intermediate product of hydrogen sulfide can be generated in a sulfuric acid production process, and the products are important chemical raw materials but all belong to dangerous chemicals, so that pipeline transportation is usually adopted for preventing leakage and continuous production, but after the pipeline is used for a certain period, deformation or leakage is easy to occur, once the pipeline is damaged, the dangerous chemicals leak, huge safety accidents or pollution accidents can be caused, and immeasurable loss is brought to the society.

Therefore, after the pipeline is used for a period of time, the pipeline needs to be overhauled, the pipeline is usually cleaned by adopting water vapor before overhauling, then manual maintenance is carried out, and steam after purging is directly discharged to the atmosphere. As all the substances transported in the pipeline for coking production are hazardous chemicals, the product has extremely high toxicity and is directly discharged outside to have certain personal danger. The coking purging steam has complicated components, and comprises various macromolecular polycyclic hydrocarbons or condensed cyclic hydrocarbons, micromolecular alkane and olefin, hydrogen sulfide, organic sulfur and other malodorous substances besides most of water vapor. Therefore, the discharged waste gas pollutes the atmospheric environment and endangers the health of workers, and under the condition, a more applicable purging steam post-treatment system is required to be provided so as to meet the actual use requirement.

The utility model has the following contents:

The utility model aims at providing a sweep steam follow-up processing system to solve the unable harmful substance such as steam, foul smell and fine coke that eradicate in the steam of sweeping that proposes in the above-mentioned background art, exhaust pollution atmospheric environment endangers the healthy problem of staff.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a purging steam subsequent treatment system, which comprises a purging steam collecting pipe, a cyclone separator, a heat exchange device and a pickling device, the sweeping steam collecting pipe is communicated with a cyclone separation bin of the cyclone separator, a discharge hole at the lower part of the cyclone separator is communicated with a feed inlet of the heat exchange device through a pipeline, the air feed pipe at the upper part of the cyclone separator is communicated with the air inlet of the pickling device, the pickling device comprises a shell, a plurality of layers of filtering devices are obliquely arranged in the shell, a spray header is annularly arranged on the inner wall of the shell close to the lower end surface of each layer of the filtering device, a spray device is arranged on the outer wall of the shell and is communicated with the spray header, the lower end face of each layer of the filtering device is provided with a fan, the upper part of the shell is provided with an exhaust pipe, and the lower part of the shell is provided with a discharge pipe.

The filter device is a filter screen, the shape of the filter screen is consistent with the shape of the cross section of the shell of the pickling device, and the outer edge of the filter screen is in contact with the inner wall of the shell of the pickling device.

The upper end surface of the filter screen is provided with a handle.

The shell inner wall is provided with a limiting block, the position of the limiting block corresponds to the position of the filter screen, and the filter screen is arranged on the limiting block in a sitting mode.

The limiting blocks are at least two and are arranged below the filter screen and are circumferentially arranged along the periphery of the filter screen to limit the filter screen.

The inclination angle of the filter screen is 20-60 degrees.

And a centrifugal gravitational machine is also arranged in the sweeping steam collecting pipe.

the heat exchange device is obliquely arranged, one end of the heat exchange device, which is inclined upwards, is close to the cyclone separator, and the heat exchange tubes in the heat exchange device are distributed in a snake shape. The shell is of an integrally formed structure or a sectional type assembly structure, and the sectional type assembly structure is formed by connecting multiple sections of shell threads.

The utility model relates to a sweep steam follow-up processing system's beneficial effect: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization, the utility model discloses a cyclone and acid dip pickle can eliminate coking and sweep harmful substance such as steam, foul smell and coke breeze in the steam, guarantee the harmless of exhaust gas, reduce the atmosphere pollution, improve coking plant production operational environment, guarantee that the staff is healthy, carry out recycle, energy-concerving and environment-protective to the heat that sweeps separation material in the steam through heat transfer device simultaneously, the utility model discloses an acid dip pickle can adjust length according to the demand, but also can the multistage use by single-stage use, can adopt to spray liquid intermittent type circulation and use also can continuous dynamic flow, and it is convenient to switch, adapts to the gas switching under the different operating modes.

description of the drawings:

FIG. 1 is a schematic structural view of a purge steam post-treatment system according to the present invention;

in the figure: the method comprises the following steps of 1-purging a steam collecting pipe, 2-centrifugal induced draft fan, 3-cyclone separator, 4-cyclone separation bin, 5-air feeding pipe, 6-heat exchange device, 7-acid cleaning device, 8-shell, 9-filter screen, 10-spray header, 11-handle, 12-fan, 13-exhaust pipe and 14-discharge pipe.

The specific implementation mode is as follows:

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

According to the figure 1, the utility model provides a sweep follow-up processing system of steam, including sweeping steam collecting pipe 1, cyclone 3, heat transfer device 6 and acid dip pickle 7, sweep steam collecting pipe 1 and communicate in cyclone 4 of cyclone 3, the discharge gate of cyclone 3 lower part communicates through the pipeline the feed inlet of heat transfer device 6, the blast pipe 5 on cyclone 3 upper portion communicates in the air inlet of acid dip pickle 7, acid dip 7 includes casing 8, the inside slope of casing 8 is provided with the multilayer filter equipment, is equipped with shower head 10 in the casing 8 inner wall ring near every layer of filter equipment lower extreme face, the casing 8 outer wall is provided with spray set, spray set with shower head 10 is linked together, is provided with fan 12 in every layer of filter equipment lower extreme face, the upper part of the shell 8 is provided with an exhaust pipe 13, and the lower part of the shell is provided with a discharge pipe 14.

in the in-service use, will the utility model discloses with the pipeline tail end intercommunication of waiting to sweep, from the head end steam of going into that drum, the steam after sweeping then gets into the utility model discloses handle.

Further, in the present embodiment, the filter device is a filter screen 9, the shape of the filter screen 9 is identical to the cross-sectional shape of the housing 8 of the pickling device 7, and the outer edge of the filter screen 9 is in contact with the inner wall of the housing 8 of the pickling device 7 to filter the gas fed into the pickling device 7, and specifically, the filter screen 9 is disposed obliquely with an inclination angle of 20 ° to 60 °.

Further, in this embodiment, a handle 11 is provided on an upper end surface of the filter screen 9, and when the filter screen 9 needs to be cleaned or washed, the filter screen 9 is directly taken out of the pickling apparatus 7 by the handle 11.

Further, in this embodiment, 8 inner walls of the shell are provided with limiting blocks, the positions of the limiting blocks correspond to the positions of the filter screens 9, the filter screens 9 are located on the limiting blocks, specifically, the limiting blocks are at least two, the limiting blocks are arranged below the filter screens 9, and the limiting blocks are arranged along the periphery of the filter screens 9, the limiting blocks are limiting, and the filter screens 9 are prevented from being displaced in the filtering process.

Further, in the present embodiment, a centrifugal gravitational force machine 2 is further installed in the purge steam collecting pipe 1 to assist in feeding the gas in the purge steam collecting pipe 1 into the cyclone 3.

Further, in this embodiment, heat transfer device 6 sets up in the slope, and its one end that upwards inclines is close to cyclone 3, the inside heat exchange tube of heat transfer device 6 is snakelike distribution, will the heat of the solid matter that cyclone 3 separated carries out recycle, and is more energy-concerving and environment-protective.

The shell 8 is of an integrally formed structure or a sectional type assembly structure, the sectional type assembly structure is formed by connecting multiple sections of shell threads, the length of the pickling device 7 can be adjusted according to needs, the pickling device meets the use requirements of users, the treatment result of the purging steam reaches the specified requirement, and the environment pollution caused by the purging steam is avoided.

The utility model discloses a use process of blowing steam follow-up processing system is described in detail below with the accompanying drawing:

the sweeping steam collected by the sweeping steam collecting pipe 1 is fed into the cyclone separator 3 for separation, the separated solid matters are fed into the heat exchange device 6 from a discharge hole arranged at the lower part of the cyclone separator 3 for heat exchange, and the separated gas is fed into the pickling device 7 from a gas feeding pipe 5 arranged at the upper part of the cyclone separator 3 for pickling and purification.

When the gas sent into the cyclone separator 3 is purified in the pickling device 7, the ammonium sulfate mother liquor or the dilute acid liquor is sprayed into the shell 8 through the spray header 10 arranged on the side wall of the shell 8 and is subjected to countercurrent contact mass transfer with the gas sent into the cyclone separator 3, the spray liquor after the mass transfer is collected at the bottom of the pickling device 7, and the purified gas after the mass transfer is discharged into the ambient atmosphere through the exhaust pipe 13 at the top of the pickling device 7. The spraying liquid of the spray header 10 can be respectively fed with fresh spraying liquid or can be fed with circulating spraying liquid collected at the bottom of the pickling device 7, and the spraying liquid can be combined according to different working conditions, namely the spraying liquid can be used in an intermittent circulation mode or in a continuous dynamic flow mode, the switching is convenient, the waste gas treatment under different working conditions is adapted, and the optimal gas washing effect is obtained.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.

Claims

1. A purge steam aftertreatment system, comprising: sweep steam collecting pipe, cyclone, heat transfer device and acid dip pickle, sweep steam collecting pipe communicate in cyclone's cyclone, the discharge gate of cyclone lower part passes through the pipeline intercommunication heat transfer device's feed inlet, the blast pipe on cyclone upper portion communicate in acid dip pickle's air inlet, acid dip pickle includes the casing, the inside slope of casing is provided with multi-layer filter, is being close to every layer the casing inner wall ring of terminal surface is equipped with the shower head under the filter, the casing outer wall is provided with spray set, spray set with the shower head is linked together, at every layer the terminal surface is provided with the fan under the filter, the blast pipe has been seted up on casing upper portion, and row material pipe has been seted up to its lower part.

2. A purge steam aftertreatment system according to claim 1, wherein: the filter device is a filter screen, the shape of the filter screen is consistent with the shape of the cross section of the shell of the pickling device, and the outer edge of the filter screen is in contact with the inner wall of the shell of the pickling device.

3. A purge steam aftertreatment system according to claim 2, wherein: the upper end surface of the filter screen is provided with a handle.

4. A purge steam aftertreatment system according to claim 2, wherein: the shell inner wall is provided with a limiting block, the position of the limiting block corresponds to the position of the filter screen, and the filter screen is arranged on the limiting block in a sitting mode.

5. A purge steam aftertreatment system according to claim 4, wherein: the limiting blocks are at least two and are arranged below the filter screen and are circumferentially arranged along the periphery of the filter screen to limit the filter screen.

6. A purge steam aftertreatment system according to claim 2, wherein: the inclination angle of the filter screen is 20-60 degrees.

7. A purge steam aftertreatment system according to claim 1, wherein: and a centrifugal gravitational machine is also arranged in the sweeping steam collecting pipe.

8. A purge steam aftertreatment system according to claim 1, wherein: the heat exchange device is obliquely arranged, one end of the heat exchange device, which is inclined upwards, is close to the cyclone separator, and the heat exchange tubes in the heat exchange device are distributed in a snake shape.

9. A purge steam aftertreatment system according to claim 1, wherein: the shell is of an integrally formed structure or a sectional type assembly structure.