CN221048197U - Catalyst sand blasting system - Google Patents
Catalyst sand blasting system Download PDFInfo
- Publication number
- CN221048197U CN221048197U CN202323082902.8U CN202323082902U CN221048197U CN 221048197 U CN221048197 U CN 221048197U CN 202323082902 U CN202323082902 U CN 202323082902U CN 221048197 U CN221048197 U CN 221048197U
- Authority
- CN
- China
- Prior art keywords
- catalyst
- pipe
- air inlet
- sand blasting
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003054 catalyst Substances 0.000 title claims abstract description 54
- 238000005488 sandblasting Methods 0.000 title claims abstract description 52
- 238000003860 storage Methods 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims abstract description 32
- 230000001502 supplementing effect Effects 0.000 claims abstract description 6
- 238000005422 blasting Methods 0.000 claims description 17
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 8
- 239000001569 carbon dioxide Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 238000010926 purge Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000499 gel Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 229920000877 Melamine resin Polymers 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model relates to the technical field of sand blasting devices, and provides a catalyst sand blasting system which comprises a sand blasting storage tank, a catalyst feeding channel and a gas feeding channel, wherein the catalyst feeding channel and the gas feeding channel are arranged on the outer side of the sand blasting storage tank; the catalyst feeding channel comprises a catalyst replenishing cylinder and a replenishing pipe; the gas feeding channel comprises an air inlet pipe and a first air inlet branch pipe communicated with the air inlet pipe, a pressurizing valve and a pressure gauge are arranged on the first air inlet branch pipe, and the discharge ends of the supplementing pipe and the first air inlet branch pipe are communicated with the sand blasting storage tank; the bottom of sandblast storage tank is provided with the discharging pipe, the discharge end of discharging pipe communicates to hot gas cooler and its through spouting into a certain amount of catalyst, under the drive of high-speed air current, the scale deposit of hot gas cooler drops under the impact to resume hot gas cooler's process gas passing rate and heat exchange efficiency.
Description
Technical Field
The utility model relates to the technical field of sand blasting devices, in particular to a catalyst sand blasting system.
Background
The hot gas cooler of the melamine device in the normal pressure method is used for removing melamine deaminated matter. In production, the generated gas from the fluidized bed is first introduced into a hot gas cooler for cooling. The reaction generated gas flowing at high speed in the tube side exchanges heat with the saturated channel liquid outside the tube. The deaminated substances of the melamine are crystallized out and enter the primary separator together with the gas flow. However, after the hot gas cooler operates for a period of time, byproducts in the process gas can scale on the hot gas cooler, the passing rate of the process gas and the efficiency of the heat exchanger are reduced, and when serious, the hot gas filter is switched in advance or the hot gas filter is switched for cleaning due to the rising pressure difference of the hot gas cooler, so that the production efficiency is greatly influenced.
Disclosure of utility model
The utility model aims to provide a catalyst sand blasting system, which is characterized in that a certain amount of catalyst is sprayed, and scaling of a hot gas cooler falls off under the impact of high-speed airflow, so that the process gas passing rate and the heat exchange efficiency of the hot gas cooler are recovered.
The embodiment of the utility model is realized by the following technical scheme:
A catalyst sand blasting system comprises a sand blasting storage tank, a catalyst feeding channel and a gas feeding channel, wherein the catalyst feeding channel and the gas feeding channel are arranged on the outer side of the sand blasting storage tank; the catalyst feeding channel comprises a catalyst replenishing cylinder and a replenishing pipe; the gas feeding channel comprises an air inlet pipe and a first air inlet branch pipe communicated with the air inlet pipe, a pressurizing valve and a pressure gauge are arranged on the first air inlet branch pipe, and the discharge ends of the supplementing pipe and the first air inlet branch pipe are communicated with the sand blasting storage tank; the bottom of sandblast storage tank is provided with the discharging pipe, the discharge end of discharging pipe communicates to the steam cooler.
Further, a plurality of discharging branch pipes are communicated with the discharging pipe, and sand blasting valves are arranged on the discharging branch pipes.
Further, the inner diameter of the discharging pipe gradually decreases from the direction close to the sand blasting storage tank to the direction far away from the sand blasting storage tank; a material passing plate is transversely arranged in the material discharging pipe, a plurality of spray pipes extending towards the material discharging end are arranged on the material passing plate, and the inner diameter of each spray pipe is gradually reduced from a direction close to the sand blasting storage tank to a direction far away from the sand blasting storage tank; the discharging branch pipe is arranged at the tail end of the discharging pipe.
Further, the air inlet pipe is also communicated with a second air inlet branch pipe, and the discharge end of the second air inlet branch pipe is communicated with the sand blasting storage tank.
Further, the top of the sand blasting storage tank is provided with a blow-down pipe, and the blow-down pipe is provided with a blow-down valve.
Further, a catalyst replenishing valve is arranged on the replenishing pipe.
Further, a gas purge valve is arranged on the second air inlet branch pipe.
Further, the gas is carbon dioxide, and the catalyst is silica gel or silica-alumina gel.
Further, the blast pressure of the gas when being ejected from the discharge pipe is higher than the pressure when the gas enters the blast tank.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
The utility model has reasonable design and simple structure, uses carbon dioxide gas as power, adds the catalyst into the inlet of the running hot gas cooler in a sand blasting mode, polishes and frosts the heat exchange blocking tube array of the hot gas cooler, and flushes away byproducts attached to the heat exchange tube array of the hot gas cooler under the action of process gas to improve the process gas passing rate and heat exchange efficiency of the hot gas cooler; and only one person is needed to operate in the operation process, so that the safety risk of operation is reduced and the operation efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a catalyst blasting system provided in an embodiment of the present utility model;
FIG. 2 is a schematic structural view of a tapping pipe according to an embodiment of the present utility model;
Icon: 1-sand blasting storage tank, 2-catalyst replenishing cylinder, 3-replenishing pipe, 31-catalyst replenishing valve, 4-air inlet pipe, 41-gas main valve, 5-first air inlet branch pipe, 51-pressurizing valve, 52-pressure gauge, 6-second air inlet branch pipe, 61-gas purging valve, 7-discharging pipe, 71-material-passing plate, 72-spraying pipe, 8-discharging branch pipe and 81-sand blasting valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
The catalyst sand blasting system comprises a sand blasting storage tank 1, a catalyst feeding channel and a gas feeding channel, wherein the catalyst feeding channel and the gas feeding channel are arranged on the outer side of the sand blasting storage tank 1; the catalyst feeding channel comprises a catalyst replenishing cylinder 2 and a replenishing pipe 3; the gas feeding channel comprises a gas inlet pipe 4 and a first gas inlet branch pipe 5 communicated with the gas inlet pipe 4, a gas main valve 41 is arranged on the gas inlet pipe 4, a pressurizing valve 51 and a pressure gauge 52 are arranged on the first gas inlet branch pipe 5, and the discharge ends of the supplementing pipe 3 and the first gas inlet branch pipe 5 are communicated with the sand blasting storage tank 1; the bottom of sandblast storage tank 1 is provided with discharging pipe 7, the discharge end of discharging pipe 7 communicates to the steam cooler.
In this embodiment, the discharging pipe 7 is connected with a plurality of discharging branch pipes 8, and the discharging branch pipes 8 are provided with sand blasting valves 81, so that the corresponding sand blasting valves 81 can be selectively opened according to the use condition, and sand blasting treatment is performed on different demand positions by different discharging branch pipes 8.
In the embodiment, the inner diameter of the discharging pipe 7 gradually decreases from the direction close to the sand blasting storage tank 1 to the direction far away from the sand blasting storage tank 1; a material passing plate 71 is transversely arranged in the material discharging pipe 7, a plurality of spray pipes 72 extending towards the material discharging end are arranged on the material passing plate 71, and the inner diameter of each spray pipe 72 gradually decreases from being close to the sand blasting storage tank 1 to being far away from the sand blasting storage tank 1; the discharging branch pipe 8 is arranged at the tail end of the discharging pipe 7; this facilitates the formation of a high velocity gas flow outlet in the nozzle 72, thereby allowing the sprayed catalyst particles to be dispersed in a spray pattern with a greater spray force, and a stronger impact on hot gas cooler fouling, resulting in a more thorough foulant shedding.
In this embodiment, the air inlet pipe 4 is further communicated with a second air inlet branch pipe 6, a discharge end of the second air inlet branch pipe 6 is communicated with the sand blasting storage tank 1, a gas purging valve 61 is arranged on the second air inlet branch pipe 6, the gas purging valve 61 is opened after the treatment is completed, and the catalyst in the sand blasting storage tank 1 is purged by introducing gas.
In this embodiment, the top of the sandblasting tank 1 is provided with a blow-down pipe, and the blow-down pipe is provided with a blow-down valve, so that the carbon dioxide gas is used for replacing the air in the sandblasting tank 1.
In this embodiment, the catalyst replenishing valve 31 is provided on the replenishing pipe 3, so that replenishing of the catalyst is facilitated.
In this embodiment, the gas is carbon dioxide, and the catalyst is silica gel or silica-alumina gel.
In this embodiment, the blasting pressure of the gas as it is ejected from the discharge pipe 7 is higher than the pressure of the gas as it enters the blasting tank 1.
Working principle: the method for the scaling treatment of the hot gas cooler comprises the steps of using carbon dioxide as power, adding a catalyst into an inlet of the hot gas cooler which is running in a sand blasting mode, flushing off byproducts attached to a heat exchange tube of the hot gas cooler by the catalyst under the action of process gas, only needing one person to operate in the operation process, supplementing the catalyst into a sand blasting storage tank 1 through a catalyst feeding channel, introducing carbon dioxide into the sand blasting storage tank 1 through a gas feeding channel after the supplementing is completed, opening a blow-down pipe at the top, replacing the sand blasting storage tank 1 with carbon dioxide, and completely replacing air in the sand blasting storage tank 1; and then pressurizing gas through the first air inlet branch pipe 5, pressurizing the sand blasting storage tank 1 to 0.3-1Mpa, spraying the catalyst into an inlet pipeline of the hot gas cooler through the discharging pipe 7, polishing and frosting a heat exchange blocking tube array of the hot gas cooler in a sand blasting mode through pressurized catalyst particles, and improving the process gas passing rate and heat exchange efficiency of the hot gas cooler.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The catalyst sand blasting system is characterized by comprising a sand blasting storage tank, a catalyst feeding channel and a gas feeding channel, wherein the catalyst feeding channel and the gas feeding channel are arranged on the outer side of the sand blasting storage tank;
The catalyst feeding channel comprises a catalyst replenishing cylinder and a replenishing pipe; the gas feeding channel comprises an air inlet pipe and a first air inlet branch pipe communicated with the air inlet pipe, a pressurizing valve and a pressure gauge are arranged on the first air inlet branch pipe, and the discharge ends of the supplementing pipe and the first air inlet branch pipe are communicated with the sand blasting storage tank;
The bottom of sandblast storage tank is provided with the discharging pipe, the discharge end of discharging pipe communicates to the steam cooler.
2. The catalyst blasting system of claim 1, wherein the discharge pipe is connected to a plurality of discharge branch pipes, and the discharge branch pipes are each provided with a blasting valve.
3. The catalyst blasting system of claim 2, wherein the discharge tube has an inner diameter that gradually decreases from a direction closer to the blasting tank to a direction farther from the blasting tank; a material passing plate is transversely arranged in the material discharging pipe, a plurality of spray pipes extending towards the material discharging end are arranged on the material passing plate, and the inner diameter of each spray pipe is gradually reduced from a direction close to the sand blasting storage tank to a direction far away from the sand blasting storage tank; the discharging branch pipe is arranged at the tail end of the discharging pipe.
4. The catalyst blasting system of claim 1, wherein the air inlet pipe is further in communication with a second air inlet manifold, a discharge end of the second air inlet manifold being in communication with the blasting reservoir.
5. The catalyst blasting system of claim 1, wherein the blasting tank top is provided with a blow-down tube, and wherein the blow-down tube is provided with a blow-down valve.
6. The catalyst blasting system of claim 1, wherein the make-up tube has a catalyst make-up valve disposed thereon.
7. The catalyst blasting system of claim 1, wherein the first inlet manifold is provided with a pressure gauge.
8. The catalyst blasting system of claim 4, wherein the second manifold is provided with a gas purge valve.
9. The catalyst blasting system of claim 1, wherein the gas is carbon dioxide and the catalyst is silica gel or silica-alumina gel.
10. The catalyst blasting system of claim 1, wherein the blast pressure of the gas as it is ejected from the discharge pipe is higher than the pressure of the gas as it enters the blast tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323082902.8U CN221048197U (en) | 2023-11-13 | 2023-11-13 | Catalyst sand blasting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323082902.8U CN221048197U (en) | 2023-11-13 | 2023-11-13 | Catalyst sand blasting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221048197U true CN221048197U (en) | 2024-05-31 |
Family
ID=91198249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323082902.8U Active CN221048197U (en) | 2023-11-13 | 2023-11-13 | Catalyst sand blasting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221048197U (en) |
-
2023
- 2023-11-13 CN CN202323082902.8U patent/CN221048197U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |