CN104030725A - Vermiculite production processing technology - Google Patents
Vermiculite production processing technology Download PDFInfo
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- CN104030725A CN104030725A CN201410239999.5A CN201410239999A CN104030725A CN 104030725 A CN104030725 A CN 104030725A CN 201410239999 A CN201410239999 A CN 201410239999A CN 104030725 A CN104030725 A CN 104030725A
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- vermiculite
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- blanking tube
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Abstract
The invention provides a vermiculite production processing technology. The method of the technology comprises the following steps: grinding the vermiculite raw material; sieving and grading the ground vermiculite raw material; performing primary cleaning of the vermiculite raw material after the primary sieving by use of a sand removing machine; calcining the vermiculite raw material after the primary cleaning; performing secondary cleaning of the calcined expanded vermiculite in a winnowing machine; sieving and grading the expanded vermiculite after the winnowing by use of a flat sieve, and sieving out various types of expanded vermiculite according to the different sizes of the expanded vermiculite; and performing third-time mechanical cleaning of the types of expanded vermiculite. The vermiculite production processing technology provided by the invention has the beneficial effects that the vermiculite does not need to be spread out to be cooled after the calcination and can be packaged directly, thereby greatly improving the working efficiency and reducing the labor intensity of workers; and through the cooling and purifying technology, the production cost is greatly reduced, and the produced vermiculite product can be widely applied to the industries with relatively high requirement on the vermiculite product quality such as fireproof coatings and rubbing seal materials.
Description
Technical field
The present invention relates to ore process for processing technical field, refer to especially a kind of vermiculite production and processing technology.
Background technology
Vermiculite be a kind of natural, nontoxic, under high temperature action dilatable mineral.It is a kind of more rare mineral, belongs to silicate.Because vermiculite has ion-exchange capacity, therefore the nutrition of soil is had to great effect.Vermiculite can be used as material of construction, sorbent material, fire-proof insulation material, power lubrication agent, soil improvement agent etc., of many uses.
The Production Flow Chart of tradition vermiculite is as follows: raw ore, after pulverizing and sieving, directly carries out high-temperature calcination, is then spread out and lowers the temperature, due to vermiculite and freezing air contact surface little, therefore, whole cooling rate is slower, approximately need within 4-5 days, just can manually pack, efficiency is very low.
In addition, because the vermiculite product granularity that traditional vermiculite production technique is produced is inhomogeneous, purity is low, can only be unfavorable for that vermiculite product application is to different field for agricultural planting and lagging material industry, and limitation is larger.
Summary of the invention
The present invention proposes a kind of vermiculite production and processing technology, has solved the problem that in prior art, expanded vermiculite production process cooling rate is slow, foreign matter content is many.
Technical scheme of the present invention is achieved in that
A vermiculite production and processing technology, its step is as follows:
(1) pulverize: vermiculite raw material is pulverized;
(2) once sieve: the vermiculite raw material after pulverizing is crossed to screen sizing, remove wherein larger non-vermiculite impurity, and vermiculite raw material is divided into the plurality of specifications varying in size;
(3) machine removal of impurities: the vermiculite raw material of the plurality of specifications after once sieving is passed through respectively to the sand removing machine of dimension, remove a part of sandstone in vermiculite raw material, make the foreign matter content in vermiculite raw material drop to 15%～20%;
(4) calcining: the vermiculite raw material after a machine removal of impurities is put in calcining furnace, and after high-temperature calcination, the vermiculite in vermiculite raw material becomes expanded vermiculite;
(5) removal of impurities of secondary machine, cooling: the expanded vermiculite after calcining is flowed in winnowing machine, utilize the cold wind that winnowing machine provides that the heat in vermiculite is taken away; Utilize the vermiculite feature different with impurity proportion simultaneously, the big-and-middle granularity impurity in expanded vermiculite is removed, make the foreign matter content in expanded vermiculite drop to 8%～12%;
(6) secondary sieves: the expanded vermiculite after the removal of impurities of secondary machine and cooling is carried out to sieving and grading, according to expanded vermiculite, vary in size and sieve out the expanded vermiculite of various different models;
No. (seven) three machine removal of impurities: the expanded vermiculite of the various different models of sieving out after secondary is sieved is further removed impurity wherein through shaker respectively, make the foreign matter content in the expanded vermiculite product of every kind of model drop to 2%～7%.
Described step (three) also comprises mixes the vermiculite raw material of all size after a machine removal of impurities, and the further screen sizing of crossing then obtains the vermiculite in flake product of different size.
In described step (), vermiculite raw material is pulverized by hammer mill.
Sand removing machine in described step (three) comprises blanking tube, with the integrated material bin of described blanking tube, and the carrier pipe being connected with described material bin; One side of described blanking tube is provided with the first window shutter, and the bottom of described blanking tube is provided with supporting leg, and the inside of described blanking tube is provided with blade motor.
In described step (four), vermiculite raw material is promoted and is put into calcining furnace by chapelet.
Winnowing machine in described step (five) comprises blower fan, enters feed bin and discharging bin, and described blower fan is arranged on the ingress of discharging bin.
Shaker in described step (seven) includes barrel and blanking tube, described blanking tube be positioned at described feeding cylinder under, and be connected with described feeding cylinder; One side of described blanking tube is provided with the second window shutter, and the opposite side relative with described the second window shutter is provided with the discharge nozzle being connected with described blanking tube.
Beneficial effect of the present invention is:
Because the expanded vermiculite after calcining flows into winnowing machine, carry out removal of impurities, utilize the cold wind that winnowing machine provides that the heat in vermiculite is taken away, so after calcining simultaneously, without spreading cooling out, can directly pack, greatly improve working efficiency, reduce labor strength;
By the expanded vermiculite obtaining after calcining is sieved and is distinguished into the various models that vary in size, further machine removal of impurities, can further reduce the foreign matter content in various model expanded vermiculite products again, makes the expanded vermiculite produced various in style, suitable application area is more extensive, and foreign matter content is lower.
By cooling and purification techniques, greatly reduce production costs, make the vermiculite product of producing can be widely used in the industry that frie retardant coating, fire-proof board, friction materials, sealing material etc. are had relatively high expectations to vermiculite quality product.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of sand removing machine in a machine removal of impurities of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the rear view of Fig. 1;
Fig. 4 is the structural representation of shaker in No. three machine removal of impurities of the present invention;
Fig. 5 is the right view of Fig. 4.
In figure:
1, blanking tube, 2, carrier pipe, 3, material bin, the 4, first window shutter, 5, supporting leg, 6, blade motor; 7, feeding cylinder, 8, blanking tube, 9, discharge nozzle, the 10, second window shutter.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
A vermiculite production and processing technology, its method steps is as follows:
(1) pulverize: vermiculite raw material is pulverized by hammer mill.
(2) once sieve: the vermiculite raw material after pulverizing is crossed to screen sizing, remove wherein larger non-vermiculite impurity.
Because vermiculite is softer, frangible, other non-vermiculite impurity are all harder, non-friable, after the vermiculite raw material after therefore pulverizing sieves, easily remove wherein larger non-vermiculite impurity.
(3) machine removal of impurities: the vermiculite raw material after once sieving, through sand removing machine, is removed to a part of sandstone in vermiculite raw material, make the foreign matter content in vermiculite raw material drop to 15%～20%;
Because step 3 part vermiculite in shaker removal of impurities process can be smashed, therefore need mixing-classifying again.The vermiculite raw material of all size after a machine removal of impurities is mixed, and the further screen sizing of crossing then, obtains the vermiculite in flake product of different size.
As shown in Figure 1-Figure 3, sand removing machine comprises blanking tube 1, with the integrated material bin 3 of blanking tube 1, and the carrier pipe 2 being connected with material bin 3; One side of blanking tube 1 is provided with the first window shutter 4, and the bottom of blanking tube 1 is provided with supporting leg 5, and the inside of blanking tube 1 is provided with blade motor 6.
In the side of sand removing machine, be provided with the device of adjusting window shutter size, when window shutter is opened greatlyr, wind speed reduces, and the impurity of removal is less; When window shutter is opened smallerly, it is large that wind speed becomes, and the impurity of removal is more, and staff can adjust the size of window shutter according to practical situation, meet different clients for the requirement of impure ratio in product.
Vermiculite raw material by carrier pipe 2 times in material bin 3, further under in blanking tube 1, wherein impurity is removed by the first window shutter 4, vermiculite in flake blows out by the blade motor 6 in blanking tube 1, thereby obtains purer vermiculite raw cook.
(4) calcining: the vermiculite raw cook after a machine removal of impurities is promoted and is put in calcining furnace by chapelet, after high-temperature calcination, 3 to 9 times of vermiculite in flake volumetric expansions, the vermiculite in vermiculite raw material becomes expanded vermiculite.
(5) removal of impurities of secondary machine, cooling: the expanded vermiculite after calcining is put into winnowing machine, utilize the cold wind that winnowing machine provides that the heat in vermiculite is taken away; Utilize the vermiculite feature different with impurity proportion simultaneously, the big-and-middle granularity impurity in expanded vermiculite is removed, make the foreign matter content in expanded vermiculite drop to 8%～12%;
Winnowing machine comprises blower fan, enters feed bin and discharging bin, and blower fan is arranged on the ingress of discharging bin.Expanded vermiculite after high-temperature calcination enters discharging bin by entering feed bin, and the wind effect that discharging bin ingress blower fan blows out is blown out to discharging bin by expanded vermiculite, and wherein larger non-vermiculite impurity has been left on discharging bin ingress and is removed.
(6) secondary sieves: the expanded vermiculite after selection by winnowing is carried out to sieving and grading by plansifter, according to expanded vermiculite, vary in size and sieve out the expanded vermiculite of various different models;
No. (seven) three machine removal of impurities: the expanded vermiculite of the various different models of sieving out after secondary is sieved is further removed impurity wherein through shaker respectively, make the foreign matter content in the expanded vermiculite product of every kind of model drop to 2%～7%;
Shaker includes barrel 7 and blanking tube 8, blanking tube 8 be positioned at feeding cylinder 7 under, and be connected with feeding cylinder 7; One side of blanking tube 8 is provided with the second window shutter 10, and the opposite side relative with the second window shutter 10 is provided with the discharge nozzle 9 being connected with blanking tube 8.
The expanded vermiculite of the various models that separate after secondary sieves carries out removal of impurities by shaker respectively, expanded vermiculite is fed into barrel 7, impurity in expanded vermiculite is removed by the second window shutter 10 of blanking tube 8 one sides, and remaining purer expanded vermiculite enters discharge nozzle 9 by blanking tube 8.
In sum, vermiculite production and processing technology of the present invention carries out removal of impurities because the expanded vermiculite after calcining flows into winnowing machine, utilize the cold wind that winnowing machine provides that the heat in vermiculite is taken away simultaneously, so after calcining, without spreading cooling out, can directly pack, greatly improve working efficiency, reduce labor strength;
By the expanded vermiculite obtaining after calcining is sieved and is distinguished into the various models that vary in size, further machine removal of impurities, can further reduce the foreign matter content in various model expanded vermiculite products again, makes the expanded vermiculite produced various in style, suitable application area is more extensive, and foreign matter content is lower.
By cooling and purification techniques, greatly reduce production costs, make the vermiculite product of producing can be widely used in the industry that frie retardant coating, fire-proof board, friction materials, sealing material etc. are had relatively high expectations to vermiculite quality product.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a vermiculite production and processing technology, is characterized in that, its method steps is as follows:
(1) pulverize: vermiculite raw material is pulverized;
(2) once sieve: the vermiculite raw material after pulverizing is crossed to screen sizing, remove wherein larger non-vermiculite impurity, and vermiculite raw material is divided into the plurality of specifications varying in size;
(3) machine removal of impurities: the vermiculite raw material of the plurality of specifications after once sieving is passed through respectively to the sand removing machine of dimension, remove a part of sandstone in vermiculite raw material, make the foreign matter content in vermiculite raw material drop to 15%～20%;
(4) calcining: the vermiculite raw material after a machine removal of impurities is put in calcining furnace, and after high-temperature calcination, the vermiculite in vermiculite raw material becomes expanded vermiculite;
(5) removal of impurities of secondary machine, cooling: the expanded vermiculite after calcining is flowed in winnowing machine, utilize the cold wind that winnowing machine provides that the heat in vermiculite is taken away; Utilize the vermiculite feature different with impurity proportion simultaneously, the big-and-middle granularity impurity in expanded vermiculite is removed, make the foreign matter content in expanded vermiculite drop to 8%～12%;
(6) secondary sieves: the expanded vermiculite after the removal of impurities of secondary machine and cooling is carried out to sieving and grading, according to expanded vermiculite, vary in size and sieve out the expanded vermiculite of various different models;
No. (seven) three machine removal of impurities: the expanded vermiculite of the various different models of sieving out after secondary is sieved is further removed impurity wherein through shaker respectively, make the foreign matter content in the expanded vermiculite product of every kind of model drop to 2%～7%.
2. a kind of vermiculite production and processing technology according to claim 1, it is characterized in that, described step (three) also comprises mixes the vermiculite raw material of all size after a machine removal of impurities, and the further screen sizing of crossing then obtains the vermiculite in flake product of different size.
3. a kind of vermiculite production and processing technology according to claim 1, is characterized in that, in described step (), vermiculite raw material is pulverized by hammer mill.
4. a kind of vermiculite production and processing technology according to claim 1, it is characterized in that, sand removing machine in described step (three) comprises blanking tube (1), with the integrated material bin of described blanking tube (1) (3), and the carrier pipe (2) being connected with described material bin (3); One side of described blanking tube (1) is provided with the first window shutter (4), and the bottom of described blanking tube (1) is provided with supporting leg (5), and the inside of described blanking tube (1) is provided with blade motor (6).
5. a kind of vermiculite production and processing technology according to claim 1, is characterized in that, in described step (four), vermiculite raw material is promoted and put into calcining furnace by chapelet.
6. a kind of vermiculite production and processing technology according to claim 1, is characterized in that, the winnowing machine in described step (five) comprises blower fan, enters feed bin and discharging bin, and described blower fan is arranged on the ingress of discharging bin.
7. a kind of vermiculite production and processing technology according to claim 1, it is characterized in that, shaker in described step (seven) includes barrel (7) and blanking tube (8), described blanking tube (8) be positioned at described feeding cylinder (7) under, and be connected with described feeding cylinder (7); One side of described blanking tube (8) is provided with the second window shutter (10), and the opposite side relative with described the second window shutter (10) is provided with the discharge nozzle (9) being connected with described blanking tube (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239999.5A CN104030725B (en) | 2014-05-30 | 2014-05-30 | A kind of vermiculite production and processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239999.5A CN104030725B (en) | 2014-05-30 | 2014-05-30 | A kind of vermiculite production and processing technology |
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| CN104030725A true CN104030725A (en) | 2014-09-10 |
| CN104030725B CN104030725B (en) | 2015-10-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171769A (en) * | 1994-10-31 | 1998-01-28 | 托尔技术有限公司 | Method for preparing exfoliated vermiculite for manufacture of finished product |
| CN1259926A (en) * | 1997-06-12 | 2000-07-12 | 温泽技术有限公司 | Method for preparing exfoliated vermiculite for mfg. finished products |
| CN102259369A (en) * | 2011-07-04 | 2011-11-30 | 南京林业大学 | Method for producing MDF (medium density fiberboard) with vermiculite flame retardancy |
| CN202742535U (en) * | 2012-09-13 | 2013-02-20 | 河北沃美克蛭石有限公司 | High frequency vermiculite board machining equipment |
-
2014
- 2014-05-30 CN CN201410239999.5A patent/CN104030725B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171769A (en) * | 1994-10-31 | 1998-01-28 | 托尔技术有限公司 | Method for preparing exfoliated vermiculite for manufacture of finished product |
| CN1259926A (en) * | 1997-06-12 | 2000-07-12 | 温泽技术有限公司 | Method for preparing exfoliated vermiculite for mfg. finished products |
| CN102259369A (en) * | 2011-07-04 | 2011-11-30 | 南京林业大学 | Method for producing MDF (medium density fiberboard) with vermiculite flame retardancy |
| CN202742535U (en) * | 2012-09-13 | 2013-02-20 | 河北沃美克蛭石有限公司 | High frequency vermiculite board machining equipment |
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| CN104030725B (en) | 2015-10-14 |
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Granted publication date: 20151014 Termination date: 20160530 |