CN117960411A - Feeding head for desulfurization limestone cyclone and preparation method - Google Patents
Feeding head for desulfurization limestone cyclone and preparation method Download PDFInfo
- Publication number
- CN117960411A CN117960411A CN202410233515.XA CN202410233515A CN117960411A CN 117960411 A CN117960411 A CN 117960411A CN 202410233515 A CN202410233515 A CN 202410233515A CN 117960411 A CN117960411 A CN 117960411A
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- China
- Prior art keywords
- feeding head
- wall
- head body
- cyclone
- groove
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- 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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- 235000019738 Limestone Nutrition 0.000 title claims abstract description 32
- 239000006028 limestone Substances 0.000 title claims abstract description 32
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 13
- 230000023556 desulfurization Effects 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 13
- 238000005260 corrosion Methods 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 239000010419 fine particle Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005488 sandblasting Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 32
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 32
- 239000000463 material Substances 0.000 abstract description 13
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 229910010293 ceramic material Inorganic materials 0.000 abstract 5
- 239000002002 slurry Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000009172 bursting Effects 0.000 description 2
- 238000010586 diagram 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
- 238000004537 pulping Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Abstract
The application relates to a feeding head for a desulfurization limestone cyclone and a preparation method thereof, wherein polyurethane and a high-molecular silicon carbide material layer are inserted into a silicon carbide ceramic material layer through a trapezoid groove arranged on the feeding head layer and the trapezoid groove arranged on the high-molecular silicon carbide ceramic material layer are inserted into the feeding head and connected together, so that the connection strength between the high-molecular silicon carbide ceramic material layer and the inner layer of the feeding head is higher, the falling of the high-molecular silicon carbide ceramic material layer is avoided, the service life of the high-molecular silicon carbide ceramic material on the feeding head is prolonged, and the corrosion resistance and the wear resistance of cyclone molecules of the limestone cyclone are improved; the service life is prolonged, and the corrosion resistance and the abrasion resistance are enhanced.
Description
Technical Field
The invention relates to the field of medical auxiliary instruments, in particular to a feeding head for a desulfurization limestone cyclone and a preparation method thereof.
Background
The limestone cyclone cylinder outlet feed head is usually made of polyurethane, and the limestone slurry has certain granularity, so that the outlet branch pipe is worn and broken. Thereby causing the cyclone molecules to be scrapped. Running, bursting, dripping, leaking and the like often occur. The maintenance cost is high, the labor intensity is high, the production cost is high, the field civilization production condition is poor, and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a feeding head for a desulfurization limestone cyclone and a preparation method thereof.
The technical scheme adopted for solving the technical problems is as follows: the application relates to a feeding head for a desulfurization limestone cyclone, which comprises a feeding head body, wherein a plurality of pull grooves with trapezoid cross sections are formed in a polyurethane layer on the inner wall of the feeding head body; the plurality of pull grooves extend to the inside of the cyclone along the inner wall of the feeding head body;
The size of the notch of the pull groove is smaller than the size of the groove bottom;
And anti-wear lining is arranged on the groove wall of the pull groove and the polyurethane layer on the inner wall of the stub bar body.
In one embodiment of the present application, the wear liner is a SiC layer.
In one embodiment of the present application, the pull groove has a depth of at least 3mm.
In one embodiment of the application, the wear liner has a thickness of between 3mm and 10mm.
In one embodiment of the application, the wear resistant liner is coated with composite ceramic fine particles.
The application also provides a preparation method of the feeding head part for the desulfurization limestone cyclone, which comprises the following steps:
Step 1, removing the corrosion surface of the inner wall of the feeding head body;
Step 2, cutting a feeding head by using a lathe, and forming a trapezoid broaching groove on the inner wall of the feeding head body, wherein the depth of the broaching groove is at least 3mm;
Step 3, carrying out sand blasting treatment on the inner wall of the feeding head body so that the roughness of the inner wall of the feeding head body is between 10 and 50 microns;
step 4, smearing SiC with the thickness of 3mm-10mm on the inner wall of the feeding head body;
Step 5, the feeding head body is put into an oven, and heat treatment is carried out for 2 to 6 hours at the temperature of 60 ℃;
And 6, coating composite ceramic fine particles on the inner wall of the feeding head body so as to finish the inner wall of the feeding head body.
The application has the beneficial effects that: according to the feeding head and the preparation method for the desulfurization limestone cyclone, the polyurethane and the high-molecular silicon carbide material layer are connected together through the trapezoid grooves arranged on the feeding head layer and the trapezoid grooves arranged on the high-molecular silicon carbide material layer and the feeding head, so that the connection strength between the high-molecular silicon carbide material layer and the inner layer of the feeding head is higher, the falling-off of the high-molecular silicon carbide material layer is avoided, the service life of the high-molecular silicon carbide material on the feeding head is prolonged, and the corrosion resistance and the wear resistance of cyclone molecules of the limestone cyclone are improved; the service life is prolonged, and the corrosion resistance and the abrasion resistance are enhanced.
Drawings
FIG. 1 is an overall block diagram of a feed header for a desulphurized limestone cyclone in accordance with the present invention;
FIG. 2 is a front view block diagram of a feed header for a desulphurized limestone cyclone in accordance with the present invention;
FIG. 3 is a flow chart of a method of making a limestone cyclone for desulfurization in accordance with the present invention;
the reference numerals are as follows:
1-a feed head body, 11-a pull groove and 12-an anti-abrasion lining.
Detailed Description
Further advantages and effects of the present application will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Examples
As shown in fig. 1-2, a feeding head for a desulfurization limestone cyclone in the application comprises a feeding head body 1, wherein a plurality of pull grooves 11 with trapezoid cross sections are arranged on a polyurethane layer on the inner wall of the feeding head body 1; a plurality of pull grooves 11 extend to the inside of the cyclone along the inner wall of the feed head body 1;
The size of the notch of the pull groove 11 is smaller than the size of the groove bottom;
The wall of the pull groove 11 and the polyurethane layer on the inner wall of the stub bar body 1 are respectively provided with an anti-wear lining 12.
Specifically, the wear liner 12 is a SiC layer. SIC whiskers and particles have hardness close to that of diamond, and have excellent abrasion resistance and scratch resistance. Therefore, the SiC layer is selected to effectively improve the wear resistance of the feed head body 1.
The size of the notch of the pull groove 11 is smaller than the size of the groove bottom; so that SiC can be firmly fixed on the polyurethane layer of the inner wall of the feed block body 1.
The pull groove 11 has a depth of at least 3mm. To ensure that the depth of the pull grooves 11 is sufficient to fix the SiC layer.
The wear liner 12 has a thickness of between 3mm and 10 mm. The thickness of the SiC layer is greater than or equal to the depth of the pull groove 11, so that a flat SiC inner surface is formed on the groove wall of the pull groove 11, siC material is directly contacted with limestone slurry, and the abrasion of the feed head body 1 is avoided.
The wear-resistant lining 12 is coated with composite ceramic fine particles.
According to the application, the inside of the feeding head of the cyclone molecule is designed into the polyurethane trapezoid broaching groove for treatment, and the inside lining SiC is subjected to wear-resistant treatment, so that the lining SiC can be effectively embedded into the inside of the feeding head made of polyurethane, and the phenomena of SiC shell lifting, falling, breakage and the like are prevented.
The advantages of the application include:
1. The bursting of the feeding head is reduced, and the outflow of the limestone slurry is controlled, so that the pollution of the limestone slurry discharge to the external environment is reduced.
2. The defect occurrence of the limestone cyclone is reduced, so that a pulping system is correspondingly ensured, and the supply of limestone slurry in the absorption tower can be fully ensured.
3. Ensure the idle time of the wet mill to be reduced and the pulping benefit to be improved. The limestone is fully utilized by re-grinding the large particles. And improves the dehydration benefit of gypsum.
4. The number of cyclone molecules of the purchased limestone cyclone is saved. Thereby saving a great deal of cost.
As shown in fig. 2, the present application also provides a method for preparing a feed head for a desulfurization limestone cyclone, comprising:
step 1, removing the corrosion surface of the inner wall of the feeding head body; the application can also carry out reinforcement treatment on the feed head which is used for a long time. This step can be omitted if a new feed head is present.
Step 2, cutting a feeding head by using a lathe, and forming a trapezoid broaching groove on the inner wall of the feeding head body, wherein the depth of the broaching groove is at least 3mm;
Step 3, carrying out sand blasting treatment on the inner wall of the feeding head body so that the roughness of the inner wall of the feeding head body is between 10 and 50 microns; after sand blasting, the inner wall of the feed head body and the groove wall of the pull groove are rougher, so that subsequent SiC can be firmly attached to the inner walls of the pull groove and the feed head body.
Step 4, smearing SiC with the thickness of 3mm-10mm on the inner wall of the feeding head body; siC material fills all of the pull grooves and forms a smooth surface on the inner wall of the feed head body,
Step 5, the feeding head body is put into an oven, and heat treatment is carried out for 2 to 6 hours at the temperature of 60 ℃; and (3) solidifying the SiC after the heat treatment to form a fixed layer.
And 6, coating composite ceramic fine particles on the inner wall of the feeding head body so as to finish the inner wall of the feeding head body. And finally, carrying out finishing treatment by using composite ceramic fine particles, so that the friction force between lime slurry and the SiC layer is reduced, and the SiC layer is more durable.
According to the feeding head and the preparation method for the desulfurization limestone cyclone, the polyurethane and the high-molecular silicon carbide material layer are connected together through the trapezoid grooves arranged on the feeding head layer and the trapezoid grooves arranged on the high-molecular silicon carbide material layer and the feeding head, so that the connection strength between the high-molecular silicon carbide material layer and the inner layer of the feeding head is higher, the falling-off of the high-molecular silicon carbide material layer is avoided, the service life of the high-molecular silicon carbide material on the feeding head is prolonged, and the corrosion resistance and the wear resistance of cyclone molecules of the limestone cyclone are improved; the service life is prolonged, and the corrosion resistance and the abrasion resistance are enhanced.
The above embodiments are merely illustrative of the principles of the present application and its effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the application. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present application shall be covered by the appended claims.
Claims (6)
1. The feeding head for the desulfurization limestone cyclone is characterized by comprising a feeding head body (1), wherein a plurality of pull grooves (11) with trapezoidal cross sections are formed in the polyurethane layer on the inner wall of the feeding head body (1); the plurality of pull grooves (11) extend to the inside of the cyclone along the inner wall of the feed head body (1);
the size of the notch of the pull groove (11) is smaller than the size of the groove bottom;
The groove wall of the pull groove (11) and the polyurethane layer on the inner wall of the stub bar body (1) are respectively provided with an anti-wear lining (12).
2. A feed head for a desulphurised limestone cyclone according to claim 1, characterized in that the wear-resistant lining (12) is a SiC layer.
3. A feed head for a desulphurised limestone cyclone according to claim 1, characterized in that the pull tank (11) has a depth of at least 3mm.
4. A feed head for a desulphurised limestone cyclone according to claim 1, characterized in that the thickness of the wear-resistant lining (12) is between 3mm and 10 mm.
5. A feed head for a desulphurised limestone cyclone according to claim 1, characterized in that the wear-resistant lining (12) is coated with composite ceramic fine particles.
6. A method of making a feed header for a desulphurised limestone cyclone, comprising:
Step 1, removing the corrosion surface of the inner wall of the feeding head body;
Step 2, cutting a feeding head by using a lathe, and forming a trapezoid broaching groove on the inner wall of the feeding head body, wherein the depth of the broaching groove is at least 3mm;
Step 3, carrying out sand blasting treatment on the inner wall of the feeding head body so that the roughness of the inner wall of the feeding head body is between 10 and 50 microns;
step 4, smearing SiC with the thickness of 3mm-10mm on the inner wall of the feeding head body;
Step 5, the feeding head body is put into an oven, and heat treatment is carried out for 2 to 6 hours at the temperature of 60 ℃;
And 6, coating composite ceramic fine particles on the inner wall of the feeding head body so as to finish the inner wall of the feeding head body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410233515.XA CN117960411A (en) | 2024-03-01 | 2024-03-01 | Feeding head for desulfurization limestone cyclone and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410233515.XA CN117960411A (en) | 2024-03-01 | 2024-03-01 | Feeding head for desulfurization limestone cyclone and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117960411A true CN117960411A (en) | 2024-05-03 |
Family
ID=90860959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410233515.XA Pending CN117960411A (en) | 2024-03-01 | 2024-03-01 | Feeding head for desulfurization limestone cyclone and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117960411A (en) |
-
2024
- 2024-03-01 CN CN202410233515.XA patent/CN117960411A/en active Pending
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| Date | Code | Title | Description |
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| PB01 | Publication |