CN212025275U - Semi-coke lock hopper filtering and pressure relief system - Google Patents
Semi-coke lock hopper filtering and pressure relief system Download PDFInfo
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- CN212025275U CN212025275U CN202020357417.4U CN202020357417U CN212025275U CN 212025275 U CN212025275 U CN 212025275U CN 202020357417 U CN202020357417 U CN 202020357417U CN 212025275 U CN212025275 U CN 212025275U
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Abstract
The utility model discloses a semicoke lock hopper filtering and pressure relief system, which comprises a gasification furnace, a semicoke lock hopper, a pressure relief filter and a buffer tank, wherein a bottom discharge port of the gasification furnace is communicated with a feed inlet of the semicoke lock hopper through a pipeline, and a discharge valve is arranged on the pipeline communicating the gasification furnace and the semicoke lock hopper; the top of the semicoke lock hopper is communicated with the bottom of the buffer tank through a buffer tube which is vertically or obliquely arranged, the high end of the buffer tube is communicated with the buffer tank, the buffer tube is provided with a buffer valve, the buffer tanks on the two sides of the buffer valve are also communicated through a pressure equalizing tube, and the pressure equalizing tube is provided with a pressure equalizing valve; the top end of the buffer tank is communicated with the air inlet of the pressure relief filter through a pipeline, and a filter valve is arranged on the pipeline between the communicated buffer tank and the pressure relief filter. The utility model discloses reduced filter core surface semicoke and adhered to and piled up and block up filter core passageway, prolonged the live time of filter core, the blowback pressure reduction when filter core regeneration moreover, pressure differential greatly reduced around the filter core during the blowback, possibility greatly reduced that the filter core damaged.
Description
The technical field is as follows:
the utility model relates to a semicoke lock fill filters pressure release system belongs to coal chemical industry hydrogasification field.
Background art:
the traditional process is adopted in the traditional semi-coke lock hopper filtering and pressure relief process flow for hydro-gasification, the semi-coke lock hopper is isolated from a high-pressure system after being fully filled, the semi-coke lock hopper of 7.0Mpa is subjected to pressure relief through a pressure relief filter, and the semi-coke lock hopper close to normal pressure after pressure relief is conveyed to a rear system through a bottom outlet under the self gravity of the semi-coke. And after the outward delivery is finished, the filter regenerates the filter element through back flushing and performs pressurizing operation on the semi-coke lock bucket.
Because the semicoke that hydro-gasification produced has characteristics such as loose porous, density is little, at semicoke lock fill pressure release in-process, in a large amount of semicokes of gas smuggleing secretly got into the filter, adhere to and pile up on the filter core surface, the permeability of greatly reduced filter core leads to filter core pressure differential increase, and system pressure and torch pressure differential are 7.0Mpa simultaneously, the filter core fracture condition often appears in the production operation, and then lead to the system to park.
The utility model has the following contents:
in order to solve the technical problem, an object of the utility model is to provide a semicoke lock fill filters pressure release system.
The utility model discloses by following technical scheme implement: a semi-coke lock hopper filtering and pressure relief system comprises a gasification furnace, a semi-coke lock hopper, a pressure relief filter and a buffer tank, wherein a discharge hole at the bottom of the gasification furnace is communicated with a feed inlet of the semi-coke lock hopper through a pipeline, and a discharge valve is arranged on the pipeline communicated with the gasification furnace and the semi-coke lock hopper; the top of the semi-coke lock hopper is communicated with the bottom of the buffer tank through a buffer tube which is vertically or obliquely arranged, the high end of the buffer tube is communicated with the buffer tank, the buffer tube is provided with a buffer valve, the buffer tanks on two sides of the buffer valve are also communicated through a pressure equalizing pipe, and the pressure equalizing pipe is provided with a pressure equalizing valve; the top end of the buffer tank is communicated with the air inlet of the pressure relief filter through a pipeline, and a filter valve is arranged on the pipeline which is communicated between the buffer tank and the pressure relief filter.
Furthermore, the pipeline communicated with the buffer tank and between the pressure relief filters is arranged vertically or obliquely, and the high end of the pipeline is communicated with the air inlet of the pressure relief filters.
Furthermore, the volume of the buffer tank is half of that of the semicoke lock hopper.
The utility model discloses to the hydrogasification field, to the operation of hydrogasification 7.0Mpa high pressure, the semicoke texture is loose porous, density is little, increases a middle semicoke buffer tank (for 1/2 that the lock was fought the volume) between semicoke lock fill and pressure release filter, and this buffer tank adopts the bottom feeding, and the valve group is add to the top ejection of compact, buffer tube, comprises buffer valve and equalizing valve. The discharge hole of the buffer tank is connected with the bottom of the pressure relief filter, and the exhaust gas entering the filter is discharged outside for pressure relief after being filtered by the filter element. The pressure of the back blowing gas during the regeneration of the filter element after the pressure relief is reduced to 4.0MPa from the traditional 7.8MPa during the design.
The utility model has the advantages that:
the utility model discloses high to the hydrogasification pressure, pressure release pressure differential is big, the semicoke is loose porous, density is little, the easy characteristics of being smugglied secretly by gas, carry out the design of buffer tank in the middle of, because the existence of middle buffer tank, when semicoke lock fill system pressure release, semicoke lock fill earlier with the buffer tank through the equalizing valve intercommunication, pressure-equalizing back pressure can reduce more than 50% (< 3.5Mpa) (semicoke volume accounts for total volumetric 1/2-3/4 about in the semicoke lock fill, and be closer to the 3/4 volume), treat the pressure stabilization back, open the cushion valve, close the equalizing valve. The semicoke in the buffer tank is returned to the semicoke lock hopper through the buffer valve under the dead weight after standing, and the dust content in the buffer tank is greatly reduced, so that the semicoke entrainment of the discharged gas is reduced, the blockage of a filter element channel due to the adhesion and accumulation of the semicoke on the surface of the filter element is reduced, and the service life of the filter element is prolonged; then through opening the filter valve that removes the pressure release filter, gas is put to the torch outward through the pressure release filter, and the difficult damage of work load pressure differential greatly reduced that the filter core bore. Meanwhile, the back-blowing pressure during filter element regeneration is reduced by half, the front-back pressure difference of the filter element during back blowing is greatly reduced, the impact on the filter element is reduced, and the possibility of filter element damage is greatly reduced even if the permeability of the filter element is poor.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a semi-coke lock hopper filtering and pressure releasing system in the embodiment.
In the figure: gasifier 1, semicoke lock fill 2, pressure release filter 3, buffer tank 4, discharge valve 5, buffer tube 6, buffer valve 7, equalizer tube 8, equalizer valve 9, filter valve 10.
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.
A semi-coke lock hopper 2 filtering and pressure relief system comprises a gasification furnace 1, a semi-coke lock hopper 2, a pressure relief filter 3 and a buffer tank 4, wherein the volume of the buffer tank 4 is half of that of the semi-coke lock hopper 2, a bottom discharge port of the gasification furnace 1 is communicated with a feed port of the semi-coke lock hopper 2 through a pipeline, and a discharge valve 5 is arranged on the pipeline communicating the gasification furnace 1 and the semi-coke lock hopper 2; the top of the semicoke lock hopper 2 is communicated with the bottom of the buffer tank 4 through an obliquely arranged buffer tube 6, the high end of the buffer tube 6 is communicated with the buffer tank 4, the buffer tube 6 is provided with a buffer valve 7, the buffer tanks 4 on the two sides of the buffer valve 7 are also communicated through a pressure equalizing pipe 8, and the pressure equalizing pipe 8 is provided with a pressure equalizing valve 9; the top end of the buffer tank 4 is communicated with the air inlet of the pressure relief filter 3 through a pipeline, and a filter valve 10 is arranged on the pipeline between the communicated buffer tank 4 and the pressure relief filter 3.
The pipeline between the communicating buffer tank 4 and the pressure relief filter 3 is obliquely arranged, and the high end of the pipeline is communicated with the air inlet of the pressure relief filter 3.
The utility model discloses high to the hydrogasification pressure, pressure release pressure differential is big, the semicoke is loose porous, density is little, easy characteristics smuggle secretly by gas, carry out buffer tank 4's design in the middle of, because the existence of middle buffer tank 4, when the semicoke lock is fought 2 system pressure release, semicoke lock fill 2 earlier with buffer tank 4 through the equalizing valve intercommunication, pressure-equalizing back pressure can reduce more than 50% (3.5 Mpa), semicoke volume approximately accounts for total volumetric 1/2-3/4 in the semicoke lock fill 2 this moment, and more be close to the 3/4 volume, treat the pressure stabilization back, open buffer valve 7, close equalizing valve 9. The semicoke in the buffer tank 4 is returned to the semicoke lock hopper 2 through the buffer valve 7 under the self weight after standing, at the moment, the dust content in the buffer tank 4 is greatly reduced, the semicoke entrainment of the discharged gas is reduced, the semicoke adhesion and accumulation on the surface of the filter element to block a filter element channel are reduced, and the service life of the filter element is prolonged; then, by opening the filter valve 10 of the decompression filter 3, the gas is discharged to the torch through the decompression filter 3, and the working load pressure difference born by the filter element is greatly reduced and is not easy to damage. Meanwhile, the back-blowing pressure during filter element regeneration is reduced by half, the front-back pressure difference of the filter element during back blowing is greatly reduced, the impact on the filter element is reduced, and the possibility of filter element damage is greatly reduced even if the permeability of the filter element is poor.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A semi-coke lock hopper filtering and pressure relief system is characterized by comprising a gasification furnace, a semi-coke lock hopper, a pressure relief filter and a buffer tank, wherein a discharge hole at the bottom of the gasification furnace is communicated with a feed inlet of the semi-coke lock hopper through a pipeline, and a discharge valve is arranged on the pipeline communicating the gasification furnace with the semi-coke lock hopper; the top of the semi-coke lock hopper is communicated with the bottom of the buffer tank through a buffer tube which is vertically or obliquely arranged, the high end of the buffer tube is communicated with the buffer tank, the buffer tube is provided with a buffer valve, the buffer tanks on two sides of the buffer valve are also communicated through a pressure equalizing pipe, and the pressure equalizing pipe is provided with a pressure equalizing valve; the top end of the buffer tank is communicated with the air inlet of the pressure relief filter through a pipeline, and a filter valve is arranged on the pipeline which is communicated between the buffer tank and the pressure relief filter.
2. The semicoke lock hopper filtering and pressure relief system according to claim 1, wherein a pipeline communicating between the buffer tank and the pressure relief filter is arranged vertically or obliquely, and a high end of the pipeline is communicated with an air inlet of the pressure relief filter.
3. The semi-coke lock hopper filtering and pressure relief system according to claim 1, wherein the buffer tank has a volume half that of the semi-coke lock hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020357417.4U CN212025275U (en) | 2020-03-19 | 2020-03-19 | Semi-coke lock hopper filtering and pressure relief system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020357417.4U CN212025275U (en) | 2020-03-19 | 2020-03-19 | Semi-coke lock hopper filtering and pressure relief system |
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| CN212025275U true CN212025275U (en) | 2020-11-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648052A (en) * | 2020-12-25 | 2021-04-13 | 一汽解放汽车有限公司 | Urea tank pressure maintaining control system and maintenance method thereof |
| CN114106884A (en) * | 2021-11-16 | 2022-03-01 | 新奥科技发展有限公司 | Coke discharging system and coke discharging method |
-
2020
- 2020-03-19 CN CN202020357417.4U patent/CN212025275U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648052A (en) * | 2020-12-25 | 2021-04-13 | 一汽解放汽车有限公司 | Urea tank pressure maintaining control system and maintenance method thereof |
| CN114106884A (en) * | 2021-11-16 | 2022-03-01 | 新奥科技发展有限公司 | Coke discharging system and coke discharging method |
| CN114106884B (en) * | 2021-11-16 | 2022-08-30 | 新奥科技发展有限公司 | Coke discharging system and coke discharging method |
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