CN219722190U - Impurity removing device for lime slurry preparation - Google Patents
Impurity removing device for lime slurry preparation Download PDFInfo
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- CN219722190U CN219722190U CN202320318198.2U CN202320318198U CN219722190U CN 219722190 U CN219722190 U CN 219722190U CN 202320318198 U CN202320318198 U CN 202320318198U CN 219722190 U CN219722190 U CN 219722190U
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- Prior art keywords
- slurry
- outlet
- slag
- filter screen
- lime slurry
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- 239000002002 slurry Substances 0.000 title claims abstract description 112
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 51
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 51
- 239000004571 lime Substances 0.000 title claims abstract description 51
- 239000012535 impurity Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 56
- 239000002699 waste material Substances 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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Abstract
According to the impurity removing device for lime slurry preparation, the waste slag and the lime slurry discharged from the slag outlet of the vibrating screen and the slurry outlet simultaneously fall into the tank body of the filter tank, the lime slurry doped in the waste slag is filtered through the filtering structure and then discharged into the slurry storage tank from the slurry outlet, the waste slag receiving structure is not required to be replaced frequently due to excessive liquid in the waste slag, the liquid in the waste slag is not required to be treated independently, the waste of the lime slurry is reduced, and the system cost is reduced.
Description
Technical Field
The utility model relates to the technical field of lime slurry preparation devices, in particular to a impurity removing device for lime slurry preparation.
Background
Lime pulping is an important ring in the treatment of waste incineration flue gas, and the prepared lime slurry is used for carrying out neutralization reaction with acid harmful gas in the flue gas to remove the acid harmful gas. The lime slurry is prepared by adding water and lime powder into a slurry tank, and stirring. After the pulping is finished, the mixed lime slurry is discharged into a slurry storage tank through a pipeline, and impurities in the lime slurry are removed in the discharging process. The process of removing impurities in the preparation of lime slurry is very important, and the service life of a lime slurry pump and an atomizer can be protected. In the prior art, a vibrating screen is generally used for removing various impurities in lime slurry. The vibrating screen is realized based on the prior art, for example: the vibrating screen mentioned in patent CN 200920207798.1.
The conventional impurity removing device for lime slurry preparation is shown in fig. 1, wherein a vibrating screen 1 is arranged above a slurry storage tank 2; a slurry inlet 1-2 is arranged above a box body 1-2 of the vibrating screen, and a slag outlet 1-4 and a slurry outlet 1-5 are arranged below the box body; the filter screen 1-3 is higher than the other side near one side of the slurry inlet 1-2, is obliquely arranged in the box body 1-2, and the vibrator 1-6 drives the filter screen 1-3 to vibrate; the upper part of the filter screen 1-3 is communicated with a slag outlet 1-4, and the lower part is communicated with a slurry outlet 1-5; the lower part of the slag outlet 1-4 is provided with a waste slag barrel 1-7, and the lower part of the slurry outlet 1-5 is communicated with a feeding interface 2-1 of a slurry storage tank 2. Starting a vibrator 1-6 to enable a filter screen 1-3 to keep vibrating, enabling lime slurry composed of lime powder and water to enter a vibrating screen from a slurry inlet 1-1 and fall onto the filter screen 1-3, enabling liquid to fall from meshes of the filter screen 1-3 and flow into a feeding interface 2-1 of a slurry storage tank 2 from a slurry outlet 1-5; while the foreign substances remain above the filter screen 1-3, slide downward based on the vibration of the filter screen, and fall from the slag hole 1-4 into the slag bucket 3 below.
However, in actual production, the filter screen 1-3 is gradually blocked by impurities, and part of lime slurry is introduced into the waste residue barrel 1-7 from above the filter screen along with the waste residue along with the blocking of the filter screen 1-3. Not only can the waste slag barrels 1-7 be filled quickly and need to be replaced frequently, but also the waste of lime slurry can be caused, and the overall preparation cost of the system is increased.
Disclosure of Invention
In order to solve the problem that the cost of a system is increased because lime slurry enters a waste residue receiving structure in the blocking process of a filter screen of the conventional impurity removing device for preparing lime slurry, the utility model provides the impurity removing device for preparing lime slurry, which can avoid wasting lime slurry and avoiding the increase of the cost of the system.
The structure of the utility model is as follows: an impurity removal device for lime slurry preparation, comprising: a vibrating screen, the vibrating screen comprising: the device comprises a box body and a filter screen, wherein a slurry inlet is formed in the upper part of the box body, a slag outlet and a slurry outlet are formed in the lower part of the box body, the filter screen is obliquely arranged in the box body, the higher end of the filter screen is arranged below the slurry inlet, and the lower end of the filter screen is arranged above the slag outlet; the filter screen divides the interior of the box body into an upper space and a lower space, the upper space is communicated with the slurry inlet and the slag outlet, and the lower space is communicated with the slurry outlet;
characterized in that it further comprises: a filter tank;
the filter tank includes: the upper opening of the tank body is arranged below the slag outlet and the slurry outlet,
the space below the slag outlet and the space below the slurry outlet in the tank body are separated based on the filtering structure;
the bottom of the tank body is positioned below one side of the slurry outlet, and a slurry outlet is formed;
the pulp outlet is connected with a feeding interface of the pulp storage tank.
It is further characterized by:
the filter structure comprises: a waste residue collection net drum and/or a filtering baffle;
the waste residue collecting net barrel is arranged in the groove body and positioned below the slag outlet;
the filtering baffle is arranged in the inner cavity of the tank body and positioned between the slag outlet and the slurry outlet;
the mesh diameter of the filtering baffle is smaller than that of the waste residue collecting net barrel.
According to the impurity removing device for lime slurry preparation, the waste slag and the lime slurry discharged from the slag outlet of the vibrating screen and the slurry outlet simultaneously fall into the tank body of the filter tank, the lime slurry doped in the waste slag is filtered through the filtering structure and then discharged into the slurry storage tank from the slurry outlet, the waste slag receiving structure is not required to be replaced frequently due to excessive liquid in the waste slag, the liquid in the waste slag is not required to be treated independently, the waste of the lime slurry is reduced, and the system cost is reduced. Through setting up the waste residue collecting vessel that possesses filtering capability, receive slag and lime slurry that the slag notch discharged, the lime slurry flows from the mesh of waste residue collecting vessel, and the waste residue remains in the bucket, is convenient for retrieve, has reduced system cost. Through setting up two-layer filtration of waste residue collecting vessel and filtering baffle, ensure to follow the lime mud that the pulp outlet discharged to the storage thick liquid jar and accord with the quality requirement, two-layer filtration has also reduced the probability that filtration was blockked up simultaneously.
Drawings
FIG. 1 is a schematic diagram of a prior art impurity removal device for lime slurry production;
FIG. 2 is a schematic diagram of the structure of the impurity removing device for lime slurry production in front view;
FIG. 3 is a schematic left-hand view of the impurity removing device for lime slurry preparation in the utility model;
FIG. 4 is a schematic top view of a filter tank according to the present utility model;
fig. 5 is a schematic structural view of a filter separator.
Detailed Description
As shown in fig. 2 to 5, the present utility model includes a device for removing impurities for preparing lime slurry, which includes: vibrating screen 1, vibrating screen 1 includes: the device comprises a box body 1-2 and a filter screen 1-3, wherein a slurry inlet 1-1 is arranged above the box body 1-2, a slag outlet 1-4 and a slurry outlet 1-5 are arranged below the box body, the filter screen 1-3 is obliquely arranged inside the box body 1-2, the higher end of the filter screen is arranged below the slurry inlet 1-1, and the lower end of the filter screen is arranged above the slag outlet 1-4; the filter screen 1-3 divides the interior of the box body 1-2 into an upper space and a lower space, the upper space is communicated with the slurry inlet 1-1 and the slag outlet 1-4, and the lower space is communicated with the slurry outlet 1-5.
In the technical scheme of the utility model, the filter tank 3 is arranged between the slurry outlet 1-5 and the feeding interface of the slurry storage tank, and the filter tank 3 is also arranged below the slag outlet 1-4. The mixed slurry of impurities and lime slurry discharged from the slag outlet 1-4 of the vibrating screen is filtered for the second time through the filter tank 3, and the filtered lime slurry is reintroduced into the reserve tank, so that the waste of the lime slurry is greatly reduced.
The filter tank 3 includes: the tank body 3-1 and the filtering structure, the upper opening of the tank body 3-1 is arranged below the slag outlet 1-4 and the slurry outlet 1-5.
The space below the slag outlet 1-4 and the space below the slurry outlet 1-5 in the tank body 3-1 are separated based on a filtering structure; the bottom of the tank body 3-1 is positioned below one side of the slurry outlet 1-5, and a slurry outlet 3-4 is arranged; the pulp outlet 3-4 is connected with a feeding interface of the pulp storage tank. Wherein, the filtration includes: a waste residue collecting net barrel 3-3 and/or a filtering baffle plate 3-2.
In this embodiment, the filtering baffle 3-2 is disposed in the inner cavity of the tank body 3-1 at a position between the slag outlet 1-4 and the slurry outlet 1-5, the space below the slag outlet 1-4 and the space below the slurry outlet 1-5 in the tank body 3-1 are separated by the filtering baffle 3-2, meanwhile, the slag collecting net barrel 3-3 is disposed below the slag outlet 1-4 in the tank body 3-1, the slag collecting net barrel 3-3 is a barrel structure formed by net materials, and after the mixed slurry of the impurities discharged from the slag outlet 1-4 and the lime slurry falls into the slag collecting net barrel 3-3, the impurities are left in the barrel, and the slurry is discharged from the barrel wall which is full of meshes.
The shape of the filtering baffle 3-2 is adapted to the section of the tank body 3-1, and in the utility model, the section of the tank body 3-1 is trapezoid with upper width, and as shown in fig. 5, the shape of the filtering baffle 3-2 is also trapezoid and is arranged in the inner cavity of the tank 3-1. The mesh diameter of the filtering baffle is smaller than that of the waste residue collecting net barrel, the waste residue collecting net barrel collects impurities with larger size, and the slurry discharged from the barrel is filtered again based on the filtering baffle and then is input into the slurry storage tank again. In this embodiment, the filter separator is realized based on a 50 mesh screen and the waste residue collecting net barrel is realized based on a 30 mesh screen.
Lime slurry composed of lime powder and water enters the box body 1-2 from the slurry inlet 1-1 and falls onto the filter screen 1-3, liquid falls into the space below the filter screen from the meshes of the filter screen 1-3 and flows into the tank body 3-1 from the slurry outlet 1-5; the vibrator 1-6 drives the filter screen 1-3 to vibrate, and impurities remain above the filter screen 1-3, and slide downwards based on the vibration of the filter screen, and fall into the lower tank body 3-1 from the slag outlet 1-4, because the slag collecting net barrel 3-3 is arranged below the slag outlet 1-4 inside the tank body 3-1, impurities are left in the barrel, and slurry is discharged from the barrel wall to the inner cavity of the tank body 3-1; because the filtering baffle 3-2 is disposed in the inner cavity of the tank body 3-1 at a position between the slag hole 1-4 and the slurry outlet 1-5, even if a small amount of impurities are included in the slurry discharged from the slag collecting net drum 3-3, the slurry is filtered by the filtering baffle 3-2, and only the slurry passes through the filtering baffle 3-2 and is discharged into the slurry storage tank through the slurry outlet 3-4. After the impurity in the waste residue collecting net barrel 3-3 is fully collected, the waste residue collecting net barrel 3-3 is directly lifted out of the box body 1-2 and replaced.
Because the amount of lime slurry discharged from the slurry outlet 1-5 into the tank 3-1 is much larger than the slurry discharged from the slag hole 1-4, the filtering baffle 3-2 is impacted by the lime slurry on the side of the slurry outlet 1-5, reducing the probability of clogging the mesh of the filtering baffle 3-2 by condensation of impurities from the side of the slag hole 1-4. The filter separator 3-2 meshes do not need to be cleaned frequently, so that the labor is saved, and the running cost of the system is reduced.
Claims (5)
1. An impurity removal device for lime slurry preparation, comprising: a vibrating screen, the vibrating screen comprising: the device comprises a box body and a filter screen, wherein a slurry inlet is formed in the upper part of the box body, a slag outlet and a slurry outlet are formed in the lower part of the box body, the filter screen is obliquely arranged in the box body, the higher end of the filter screen is arranged below the slurry inlet, and the lower end of the filter screen is arranged above the slag outlet; the filter screen divides the interior of the box body into an upper space and a lower space, the upper space is communicated with the slurry inlet and the slag outlet, and the lower space is communicated with the slurry outlet;
characterized in that it further comprises: a filter tank;
the filter tank includes: the upper opening of the tank body is arranged below the slag outlet and the slurry outlet,
the space below the slag outlet and the space below the slurry outlet in the tank body are separated based on the filtering structure;
the bottom of the tank body is positioned below one side of the slurry outlet, and a slurry outlet is formed;
the pulp outlet is connected with a feeding interface of the pulp storage tank.
2. A device for removing impurities for preparing lime slurry according to claim 1, wherein: the filter structure comprises: a waste residue collecting net barrel and/or a filtering baffle plate.
3. A device for removing impurities for preparing lime slurry according to claim 2, wherein: the waste residue collecting net barrel is arranged in the groove body and positioned below the slag outlet.
4. A device for removing impurities for preparing lime slurry according to claim 2, wherein: the filtering baffle is arranged in the inner cavity of the tank body and positioned between the slag outlet and the slurry outlet.
5. A device for removing impurities for preparing lime slurry according to claim 2, wherein: the mesh diameter of the filtering baffle is smaller than that of the waste residue collecting net barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318198.2U CN219722190U (en) | 2023-02-27 | 2023-02-27 | Impurity removing device for lime slurry preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318198.2U CN219722190U (en) | 2023-02-27 | 2023-02-27 | Impurity removing device for lime slurry preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219722190U true CN219722190U (en) | 2023-09-22 |
Family
ID=88032174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320318198.2U Active CN219722190U (en) | 2023-02-27 | 2023-02-27 | Impurity removing device for lime slurry preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219722190U (en) |
-
2023
- 2023-02-27 CN CN202320318198.2U patent/CN219722190U/en active Active
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