CN203350150U - Device for determining apparent porosity of pellets - Google Patents
Device for determining apparent porosity of pellets Download PDFInfo
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- CN203350150U CN203350150U CN 201320394049 CN201320394049U CN203350150U CN 203350150 U CN203350150 U CN 203350150U CN 201320394049 CN201320394049 CN 201320394049 CN 201320394049 U CN201320394049 U CN 201320394049U CN 203350150 U CN203350150 U CN 203350150U
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- apparent porosity
- hanging basket
- pellet
- sample
- pellets
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Abstract
The utility model discloses a device for determining the apparent porosity of pellets. The device comprises an electronic scale 5, a hanging basket 4, a beaker 3, a cross bar 1 and an S-shaped hook 2, wherein the electronic scale 5 is used for weighing; the hanging basket 4 is used for hanging a specimen; the beaker 3 is used for containing liquid; the cross bar 1 and the S-shaped hook 2 are used for suspending the hanging basket. The device for detecting the apparent porosity of the pellets is provided. The device is simple and practical in structure, can be directly used for determining the apparent porosity of the pellets, and has the characteristic of being fast and accurate to detect. The device can be used for rapidly detecting the apparent porosity of the products such as the pellets, ceramics, refractory matters and the like.
Description
Technical field
The utility model relates to a kind of physical and chemical inspection device, especially a kind of determinator of pellet apparent porosity.
Background technology
Pellet is the chief component of blast furnace feeding raw material, have of high grade, intensity is good, the advantages such as epigranular, the chemical composition of pellet, compressive strength, the index such as tumbler index and metallurgical performance is to weigh the important evidence of its quality, be widely used at present in enterprise's production, and the apparent porosity of pellet is to weigh the important indicator of pellet equally, this index has been reacted the compactness extent of the inner structure of pellet, it is to the pellet ore reduction performance, tumbler index and compressive strength all have important impact, therefore measure the pellet apparent porosity very necessary.
Pellet is the sphere formed by high-temperature roasting by iron fine powder pelletizing, and degree of porosity is low and be all micro-pore, and essential mineral is haematite, and consolidation style is that solid phase is fixed.The hole of pellet is the circular channel be interconnected to form by the hole between particle, and in roasting process, particle recrystallization and glomerocryst are grown up, passages shrink, and the pelletizing densification, porosity reduces.Therefore finished ball nodulizing apparent porosity has reflected the crystallization degree of haematite, also can reflect simultaneously pelletizing production the sintering temperature curve setting rationally whether, can instruct to produce and improve technique, rationalize thermal system by measuring the pellet apparent porosity.And pellet apparent porosity mensuration there is no unified device.
The utility model content
The technical problems to be solved in the utility model be to provide a kind of fast, the determinator of pellet apparent porosity accurately.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: it includes the electronic balance for weighing; For lifting the hanging basket of sample; Beaker for carrying liquid; And for cross bar and the S-hook of hanging basket.
Hanging basket described in the utility model is configured to by central shaft and some layers; Every layer of support has 6～8 radial being fixed on central shaft of pole, is connected with 2～3 circle annulus on described pole; Described central shaft top is provided with hanging ring.
Support described in the utility model is three layers.
The ring of annulus 9 described in the utility model is apart from being 8mm, and outer ring diameter is 60mm.
The beneficial effect that adopts technique scheme to produce is: the utility model provides a kind of device that detects the pellet apparent porosity that is exclusively used in, this apparatus structure is simple and practical, can be directly used in the mensuration of pellet apparent porosity, there are the characteristics fast and accurately that detect.The utility model can be used for the apparent porosity of the products such as fast detecting pellet, pottery, fire resistive material.
After the utility model adopts the support of sandwich construction, the unitary determination sample size is many, makes it to have the characteristics such as measurement is quick, accurate, favorable reproducibility.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is hanging basket front view of the present utility model;
Fig. 3 is hanging basket vertical view of the present utility model;
Fig. 4 is S-hook structural representation of the present utility model.
In figure: the 1-cross bar; 2-S shape hook; The 3-beaker; The 4-hanging basket; The 5-electronic balance; The 6-hanging ring; The 7-central shaft; The 8-support; The 9-annulus; 10-pole.
Embodiment
Shown in Fig. 1, it includes the electronic balance 5 for weighing the determinator of this pellet apparent porosity; For lifting the hanging basket 4 of sample; Beaker 3 for carrying liquid; And for the cross bar 1 of hanging basket and the S-hook 2 shown in Fig. 4.Shown in Fig. 2, Fig. 3, described hanging basket consists of three layers of support 8 and central shaft 7; The number of plies of support 8 also can design as required, and the number of plies is more, and sample that can disposable detection is also just more; Every layer of support 8 has the radial pole 10 be fixed on central shaft 7 of the six roots of sensation, is connected with two circle annulus 9 on described pole 10; Described pole 10 adopts the stainless steel of 1mm, and the quantity of every layer of support 8 upper rack posts 10 can be as required affixed 6～8; Described annulus 9 adopts the stainless steel annulus of 0.5mm, and ring is apart from 8mm, and outer ring diameter is 60mm, also can be set to as required 3 circles; Described central shaft 7 tops are provided with hanging ring 6, can utilize like this S-hook 2 that hanging basket 4 is suspended on cross bar 1.After adopting said structure, hanging basket 4 every layer can place 6 samples, once experiment can detect 18 samples, the sampling segregation phenomena of having avoided sample quantities may occur less is therefore more representative, and the experimental result favorable reproducibility; One-time detection sample grain number is more, the experimental result favorable reproducibility, but consider the restriction (beaker, hanging basket size etc.) of testing equipment, one-time detection sample grain number is advisable at 15～25; Be partitioned into six rooms in order to carry material by six roots of sensation pole 10 and two circle annulus 9, thereby the area that can avoid like this hanging basket of multilayer contact with sample too much produces bubble, the accuracy of impact measurement.
Adopt the determinator of this pellet apparent porosity to measure the step of pellet apparent porosity as described below:
(1) sample producing is dried, and the pellet sample is sieved, and the sample that to get grain size category be 10～15mm is test specimen, sample is put into to electrocaloric effect and dry 2 hours under 105～110 ℃, and naturally cool to room temperature in drying box.
(2) dry cleanly, get 18～24 sample clean surface dusts, till being blown brush and there is no dust to surface with high pressure nitrogen, the mass M of weighing sample
1, be accurate to 0.01g.
(3) the sample vacuum liquid-charging, put into beaker to sample, slowly is filled to sample toward beaker and floods fully.Beaker is placed in to vacuum extractor, is evacuated to negative pressure 70KPa ± 5 KPa, keep 30min, beaker is taken out, standing 30min in air, make the sample planar water to state of saturation.
(4) buoyant weight of test specimens and weight in wet base, at first, the weight M of weighing hanging basket
0, then on electronic balance, putting into the beaker that fills distilled water, height of water level 50mm, press reset button; Place cross bar above electronic balance, with S-hook, multilayer hanging-basket is connected with cross bar, put into beaker and guarantee that sample all is immersed in liquid, after stablizing, read hanging basket buoyant weight F
0take out hanging basket, after then sample being taken out in liquid and carefully wiping the residue water droplet (attention can not the moisture sucking-off hole) of specimen surface with wet towel, the sample of saturated adsorption liquid is put in hanging basket, connect and put into beaker with hook, read the data F of buoyant weight after stablizing
1; To link up with cross bar, break away from and hanging basket to beaker bottom, this is to take off hook, reads the weight M of hanging basket and sample
3.
(5) data are processed, and the data of measuring in process of the test are brought in formula (I), (II) and (1), calculate the sample porosity;
Formula (I): F=F
1-F
0; Formula (II): M
2=M
3-M
0; Formula (one): P=(M
2-M
1)/F.
Claims (4)
1. the determinator of a pellet apparent porosity, it is characterized in that: it includes the electronic balance (5) for weighing; For lifting the hanging basket (4) of sample; Beaker (3) for carrying liquid; And for cross bar (1) and the S-hook (2) of hanging basket.
2. the determinator of pellet apparent porosity according to claim 1 is characterized in that: described hanging basket (4) consists of central shaft (7) and some layers of support (8); Every layer of support (8) has the radial central shaft (7) that is fixed in of 6～8 poles (10) to go up, and is connected with 2～3 circle annulus (9) on described pole (10); Described central shaft (7) top is provided with hanging ring (6).
3. the determinator of pellet apparent porosity according to claim 2, it is characterized in that: described support (8) is three layers.
4. according to the determinator of the described pellet apparent porosity of claim 2 or 3, it is characterized in that: the ring of described annulus 9 is apart from being 8mm, and outer ring diameter is 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320394049 CN203350150U (en) | 2013-07-03 | 2013-07-03 | Device for determining apparent porosity of pellets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320394049 CN203350150U (en) | 2013-07-03 | 2013-07-03 | Device for determining apparent porosity of pellets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350150U true CN203350150U (en) | 2013-12-18 |
Family
ID=49750034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320394049 Expired - Fee Related CN203350150U (en) | 2013-07-03 | 2013-07-03 | Device for determining apparent porosity of pellets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376225A (en) * | 2013-07-03 | 2013-10-30 | 河北钢铁股份有限公司邯郸分公司 | Determination method and device of pellet apparent porosity |
| CN106840788A (en) * | 2016-12-20 | 2017-06-13 | 中国石油天然气股份有限公司 | Suspension type salt rock water-soluble testing device and method |
-
2013
- 2013-07-03 CN CN 201320394049 patent/CN203350150U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376225A (en) * | 2013-07-03 | 2013-10-30 | 河北钢铁股份有限公司邯郸分公司 | Determination method and device of pellet apparent porosity |
| CN106840788A (en) * | 2016-12-20 | 2017-06-13 | 中国石油天然气股份有限公司 | Suspension type salt rock water-soluble testing device and method |
| CN106840788B (en) * | 2016-12-20 | 2020-01-07 | 中国石油天然气股份有限公司 | Suspension type salt rock water-soluble testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20160703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |