CN116465195A - Quartz sand purifying and calcining device and method - Google Patents
Quartz sand purifying and calcining device and method Download PDFInfo
- Publication number
- CN116465195A CN116465195A CN202310385736.4A CN202310385736A CN116465195A CN 116465195 A CN116465195 A CN 116465195A CN 202310385736 A CN202310385736 A CN 202310385736A CN 116465195 A CN116465195 A CN 116465195A
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- Prior art keywords
- arc
- opening
- stirring part
- temperature chamber
- stirring
- Prior art date
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 239000006004 Quartz sand Substances 0.000 title claims abstract description 75
- 238000001354 calcination Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000003756 stirring Methods 0.000 claims abstract description 139
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 34
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000004566 building material Substances 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 48
- 238000009826 distribution Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 230000002226 simultaneous effect Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0083—Means for stirring the charge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Silicon Compounds (AREA)
Abstract
The invention discloses a quartz sand purifying and calcining device and a quartz sand purifying and calcining method, and belongs to the field of special mechanical manufacturing for building material production. A quartz sand purifying and calcining device and method comprises a calcining furnace, wherein the calcining furnace comprises a shell, and a high-temperature chamber is arranged in the shell; the stirring part is arranged in the high-temperature chamber, the material of the stirring part comprises a heat conducting material, the length of the stirring part is equal to that of the shell, the length direction of the stirring part is consistent, two ends of the stirring part are rotationally connected with the inner wall of the high-temperature chamber, and the rotation of the two ends of the stirring part is independently controlled so that the stirring part can keep horizontal or inclined; a feeding chamber is formed in the stirring part, an opening is formed in the lower part of the stirring part, and the opening is communicated with the feeding chamber and the high-temperature chamber; an opening and closing component is fixedly connected in the opening. The quartz sand stirring device can realize that quartz sand is uniformly distributed at the bottom of the calciner after entering the calciner, and the quartz sand in the calciner is stirred in the calcination process, so that the quartz sand is uniformly heated and thoroughly calcined.
Description
Technical Field
The invention belongs to the field of special mechanical manufacturing for building material production, and particularly relates to a quartz sand purifying and calcining device and method.
Background
Quartz sand is a silicate mineral with hardness, wear resistance and stable chemical property, and the main chemical component is SiO2. The unique physical and chemical properties of the quartz sand not only lead the quartz sand to have wide application in the traditional industries of casting, metallurgy, rubber, abrasive, ceramic, construction and the like, but also play an irreplaceable role in the high and new technical fields of aerospace, IT, communication, solar cells and the like.
When quartz is formed into a rock, various impurity minerals such as feldspar, mica and clay are associated, and the quality of quartz sand is seriously affected by the existence of the impurities, so that the quartz sand needs to be purified by adopting calcination equipment to heat the quartz sand so as to remove the impurities in the quartz sand; however, in the conventional calcining equipment, for example, in a calcining device for purifying quartz sand described in CN201911149163.5, since the feed hopper is provided on one side of the calcining box, the outlet of the feed hopper can only cover a part of the space of the calcining box, so that quartz sand tends to be deposited on one side of the calcining box when quartz sand is fed into the calcining box through the feed hopper, if the distribution of quartz sand in the calcining box is not adjusted, the quartz sand is fully deposited on one side of the calcining box, the side quartz sand is heated unevenly due to excessive treatment capacity, the calcining is not thorough, and the space on the other side is idle, so that the space utilization rate is low; if the step of adjusting and stirring the quartz sand is added, a worker is required to manually adjust or assemble a mechanical device specially used for adjustment, resulting in an increase in production cost.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a quartz sand purifying and calcining device and a quartz sand purifying and calcining method, which can realize that quartz sand is uniformly distributed at the bottom of a calcining furnace after entering the calcining furnace, and the quartz sand in the calcining furnace is stirred in the calcining process, so that the quartz sand is uniformly heated and thoroughly calcined.
The invention relates to a quartz sand purifying and calcining device and a method, comprising a calcining furnace, wherein the calcining furnace comprises a shell, and a high-temperature chamber is arranged in the shell; the stirring part is arranged in the high-temperature chamber, the material of the stirring part comprises a heat conducting material, the length of the stirring part is equal to that of the shell, the length direction of the stirring part is consistent with that of the shell, two ends of the stirring part are rotationally connected with the inner wall of the high-temperature chamber, so that the stirring part can rotate in the high-temperature chamber, and the rotation of the two ends of the stirring part can be independently controlled, so that the stirring part can keep horizontal or inclined in the high-temperature chamber;
a feeding chamber is formed in the stirring part, an opening is formed in the lower part of the stirring part, and the opening is communicated with the feeding chamber and the high-temperature chamber; an opening and closing component is fixedly connected in the opening and controls the opening and closing of the opening.
As a further improvement of the invention, the turntable is arranged in the high-temperature chamber, is made of rigid materials, is in a disc shape, is two in number, is vertically arranged, is symmetrically arranged at two ends of the high-temperature chamber, and is horizontal in axis connecting line;
the two turntables are fixedly connected with a rotating assembly, and the rotating assembly controls the two turntables to independently rotate around the shaft;
two ends of the stirring part are respectively and rotatably connected with the outer circles of the two turntables.
As a further improvement of the invention, the rotating assembly comprises a rotating device and a fixed assembly;
the rotating device is arranged on one side of the shell, penetrates through the left end face of the shell and is fixedly connected with the adjacent turntable, so that the rotating device controls the turntable to rotate around the shaft;
the other rotary disc comprises a shaft part and a sleeve part; the shaft center part is fixedly connected with the inner wall of the shell; the outer sleeve part and the axle center part are coaxially arranged, the outer sleeve part is sleeved on the periphery of the axle center part, and the outer sleeve part is rotationally connected with the axle center part so that the turntable can rotate around the axle;
the fixed component is detachably connected with the turntable, and when the fixed component is connected with the turntable, the turntable cannot rotate and the turntable connected with the rotating device independently rotates; when the fixed component is separated from the turntables, the turntables can rotate around the axis, and the two turntables synchronously rotate.
As a further improvement of the invention, each turntable is provided with a clamping groove, the clamping groove is arranged on the periphery of the turntable, the clamping groove is arranged from the end surface of the turntable, which is far away from the outside, to the other end surface, and the width of the clamping groove in the left-right direction is smaller than that of the turntable in the left-right direction;
the size at stirring portion both ends is all less than the size of block groove, and the both ends of stirring portion all set up in corresponding block inslot, and the both ends of stirring portion all rotate with the inner wall in corresponding block groove and be connected.
As a further improvement of the invention, the high temperature chamber is a cylindrical chamber; the stirring part is cylindrical; the sum of the radius of the turntable and the diameter of the stirring part is equal to the radius of the high-temperature chamber.
As a further improvement of the present invention, the stirring section includes a stirring roller barrel including a cylindrical housing; the cylinder of the cylindrical shell comprises an arc ring and an arc plate, the section radian of the arc ring is larger than 180 degrees, and the opening of the arc ring is an arc opening with the radian smaller than 180 degrees;
an arc-shaped containing cavity is formed in one side, close to the arc-shaped opening, of the arc ring, the radian of the containing cavity is equal to that of the arc-shaped opening, the containing cavities are formed in the length direction of the arc ring, and one side, close to the arc-shaped opening, of each containing cavity is open;
the arc plate is fixedly connected with the arc ring, the arc plate is in sliding connection with the containing cavity, the length of the arc plate is equal to that of the containing cavity, the radian of the arc plate is equal to that of the arc opening, and the thickness of the arc plate is smaller than the upper height and the lower height of the containing cavity.
As a further improvement of the invention, the upper wall of one side of the accommodating cavity close to the arc-shaped opening is convexly provided with the abutting flange, and the abutting flange is a bulge of the upper wall of the accommodating cavity in the direction away from the axis of the arc ring, so that the height of the opening of one side of the accommodating cavity close to the arc-shaped opening is smaller than that of the accommodating cavity;
one side of the arc plate, which is close to the containing cavity, is provided with a clamping block, the clamping block is an upward bulge on the arc plate, the length of the clamping block is equal to that of the arc plate, and the height of the clamping block is equal to that of the containing cavity.
As a further improvement of the invention, the number of the containing cavities is multiple, and the containing cavities are sequentially arranged in the arc ring from top to bottom;
the number of the arc plates is equal to that of the accommodating cavities, each arc plate comprises a baffle plate and a plurality of filtering arc plates, and the baffle plates are connected in the accommodating cavities at the lowest side in a sliding manner; the plurality of filtering arc plates are respectively connected in the rest cavities in a sliding way, the plurality of filtering arc plates are provided with filtering holes, and the filtering holes of the filtering arc plates from top to bottom are sequentially enlarged.
As a further improvement of the invention, a method for using the quartz sand purifying and calcining device comprises the following steps: the two ends of the stirring part are independently rotated to different heights so as to incline the length direction of the stirring part, and the stirring part is used for filling materials into the high-temperature chamber; in the calcining process of the calciner, the stirring part is kept horizontal, and the two ends of the stirring part synchronously rotate to enable the stirring part to rotate in the high-temperature chamber so as to play a role in stirring; the staff controls the opening and closing assembly to work so that materials with different fineness enter the high-temperature cavity through the opening.
As a further improvement of the invention, the method for controlling the arc plate to rotate and fix by the staff comprises the following steps: preparing a supporting arc plate with the radian equal to that of the accommodating cavity and the thickness smaller than the height of the accommodating cavity;
when the arc plate is required to be fixedly arranged in the arc opening, the supporting arc plate is inserted into one side of the clamping block far away from the abutting flange, and at the moment, the two sides of the supporting arc plate are respectively abutted with the clamping block and the inner wall of the accommodating cavity;
when the arc plate is required to be fixedly arranged in the accommodating cavity, the supporting arc plate is inserted between the clamping block and the abutting flange, and at the moment, the two sides of the supporting arc plate are respectively abutted with the clamping block and the abutting flange.
Compared with the prior art, the invention has the beneficial effects that:
(1) In the processing process, the high-temperature chamber is used for high-temperature calcination, and the feeding chamber is used for adding quartz sand into the high-temperature chamber; when quartz sand is added, the two ends of the stirring part are controlled to rotate to different heights, so that the stirring part is inclined in the length direction, and when quartz sand is added into the feeding cavity from the high side of the stirring part, the quartz sand is transported to the low side of the stirring part under the action of gravity, so that the step of filling the feeding cavity with the quartz sand is more convenient, and the feeding efficiency is accelerated; in addition, when the materials in the stirring roller barrel need to be discharged, the height of one end of the opening of the stirring roller barrel is controlled to be low, and the height of the other end of the opening of the stirring roller barrel is controlled to be high, so that the materials in the stirring roller barrel move towards the direction of the opening under the action of gravity and are discharged to the outside of the stirring roller barrel, and the materials in the stirring roller barrel are convenient to add and discharge;
(2) After the feeding cavity is filled with quartz sand and then the opening and closing assembly is opened, the quartz sand in the feeding cavity enters the high-temperature cavity from the opening, and as the length direction of the stirring part is consistent with that of the high-temperature cavity, the quartz sand can completely cover the bottom surface of the high-temperature cavity instead of being piled up on one side, so that the conditions of uneven heating and incomplete calcination caused by uneven distribution of the quartz sand in the high-temperature cavity are avoided, manual adjustment of staff is not needed, the production cost is reduced, and the production steps are simplified;
(3) In the calcining process, the two ends of the stirring part synchronously rotate, so that the stirring part keeps a horizontal state in the high-temperature chamber and rotates around the axis of the turntable, the stirring part can stir quartz sand in the calcining process, and the quartz sand is heated more uniformly; the stirring part is made of a heat-conducting material, and the stirring part is kept at a high temperature during calcination, so that the quartz sand is calcined at a high temperature when the stirring part is contacted with the quartz sand in a rotating stirring process, the quartz sand is subjected to the simultaneous effects of the external high temperature and the high temperature of the stirring part, the calcination efficiency is improved, the calcination of the quartz sand is more thorough, and the quality of products is improved;
(4) During the second calcination, a worker can directly add sodium hydroxide into the quartz sand which is calcined for the first time in the high-temperature chamber through the stirring part, and then stir the quartz sand and the sodium hydroxide through the rotation of the stirring part to uniformly mix the quartz sand and the sodium hydroxide; the quartz sand and the sodium hydroxide are directly stirred and uniformly mixed in the high-temperature chamber, so that the step that a worker manually stirs and mixes the quartz sand after the first calcination with sodium hydroxide solids after taking out the quartz sand is avoided, and meanwhile, the equipment for mixing the quartz sand and the sodium hydroxide is not required to be additionally arranged, the steps and the equipment are simplified, the occupied area of the equipment is reduced, and the cost is reduced;
(5) Because the high-temperature chamber and the feeding chamber in the stirring roller barrel are two independent chambers, when two materials are required to be respectively and separately calcined at high temperature in the process flow, the two materials can be respectively added into the high-temperature chamber and the feeding chamber and then heated, so that the two materials are calcined at the same time, and the reaction and the change of the two materials in the calcining process are not interfered with each other; the calcination of the two materials can be completed through one calcination process, so that the time loss and the energy consumption caused by the two calcination processes are avoided, the production cost is saved, the production efficiency is improved, and the application range of the equipment suitable for independently completing the calcination of the two materials is wider;
(6) The sum of the radius of the rotary table and the diameter of the stirring part is equal to the radius of the high-temperature chamber, so that the shell also provides supporting force for the stirring part in the rotation process of the stirring part, and the stirring part is prevented from falling off from the rotary table due to overlarge gravity of the stirring part when the stirring part is arranged on the lower side of the rotary table, thereby avoiding faults and ensuring the normal operation of the machine;
(7) The arrangement of the filtering arc plates slows down the speed of materials entering the high-temperature chamber from the feeding chamber, so that when the arc opening is opened and materials are added into the feeding chamber, the materials enter the high-temperature chamber from the arc opening completely after the materials do not completely reach the other end of the feeding chamber, and uneven distribution of the materials in the high-temperature chamber is caused, the bottom of the high-temperature chamber is covered with the materials, the space utilization rate of the high-temperature chamber is improved, meanwhile, the manual stirring and adjustment of the high-temperature chamber are not needed by staff, the efficiency is accelerated, and the steps are simplified;
(8) When the filter holes on the filter arc plates from top to bottom become larger in sequence, and the filter holes on the filter arc plates from top to bottom become smaller in sequence, so that materials are added into the feeding cavity, large-particle materials cannot pass through the filter arc plates at the lowest layer through the filter arc plates at the uppermost layer, and are blocked in the arc openings, so that blocking and blocking of the arc openings occur, and the materials are added more smoothly.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of an operating state of the present invention;
FIG. 3 is a schematic view of the structure of an operating state of the present invention;
FIG. 4 is a schematic view of the structure of the stirring roller barrel of the invention;
FIG. 5 is a schematic view of a partial structure of a stirring roller barrel according to the present invention;
FIG. 6 is a schematic view of an arc ring of the present invention;
FIG. 7 is a schematic side view of the calciner of the present invention;
FIG. 8 is a schematic view showing a partial structure of the calciner of the present invention;
FIG. 9 is a schematic view showing the structure of the inside of the calciner of the present invention;
fig. 10 is a schematic view showing the structure of the inside of the calciner of the present invention.
The reference numerals in the figures illustrate:
1 calciner, 11 turntables, 111 rotating device, 112 clamping groove, 12 stirring roller barrel, 121 arc ring, 122 arc plate, 123 holding cavity, 124 abutting flange, 125 clamping block, 13 high temperature chamber, 14 shell, 2 seat body and 3 support component.
Detailed Description
First embodiment: referring to fig. 1 to 10, a device for purifying and calcining quartz sand includes a calciner 1, a base body 2 and a support assembly 3.
The calciner 1 is for calcining quartz sand, and the calciner 1 comprises a housing 14 and a high temperature chamber 13.
The shell 14 is made of rigid materials, a closed cavity is formed in the shell 14, an opening is formed in the left end face of the shell 14, and the opening is communicated with the closed cavity and the outside, so that the opening and the closing of the opening control the communication between the closed cavity and the outside; when the opening is opened, the cavity is in contact with the outside, and when the opening is closed, the cavity is isolated from the outside.
A discharge hole is formed in the lower bottom surface of the shell 14 and is used for discharging materials in the shell 14; when the calciner 1 works, the discharge port is closed, so that the material in the shell 14 is prevented from leaking out, and the material is not thoroughly calcined; when the calciner 1 stops working, the discharge port can be opened, so that the materials in the shell 14 can be discharged; because the setting of discharge gate and the control technique that the discharge gate was opened and close are prior art, consequently do not need to be repeated in this application.
The support assembly 3 is fixedly connected to the lower side of the housing 14, the support assembly 3 is used for supporting the housing 14, and the support assembly 3 is an existing device, so that a detailed description is omitted in this application.
The right side of the housing 14 is fixedly provided with a base 2, and the base 2 is used for fixing and supporting the housing 14.
The high-temperature chamber 13 is a closed chamber formed in the shell 14, the high-temperature chamber 13 is a cylindrical chamber, and the furnace temperature of the high-temperature chamber 13 is 800-1300 ℃ when the high-temperature chamber works and is used for calcining quartz sand;
the inside of the high-temperature chamber 13 is provided with turntables 11, the turntables 11 are made of rigid materials, the turntables 11 are disc-shaped, the number of the turntables 11 is two, the two turntables 11 are vertically arranged and symmetrically arranged at the left end and the right end of the high-temperature chamber 13, and the connecting line of the axes of the two turntables 11 is horizontal;
the turntable 11 on the right side comprises a shaft part and a sleeve part; the axle center part is fixedly connected with the inner wall on the right side of the shell 14; the outer sleeve part and the axle center part are coaxially arranged, the outer sleeve part is sleeved on the periphery of the axle center part, the inner wall of the outer sleeve part is clung to the outer surface of the axle center part, and the outer sleeve part is rotationally connected with the axle center part so that the turntable 11 can rotate around the axle;
the rotating device 111 is arranged at one side of the turntable 11 at the left side far away from the seat body 2, the rotating device 111 is arranged at the left side of the shell 14, and the rotating device 111 penetrates through the left end face of the shell 14 and is fixedly connected with the turntable 11, so that the rotating device 111 can control the turntable 11 to rotate around the shaft; since the rotating device 111 is a prior art, a detailed description is omitted in this application.
Each turntable 11 is provided with a clamping groove 112, the clamping grooves 112 are formed in the periphery of the turntable 11, the clamping grooves 112 are formed from the end surface of the turntable 11 far from the outside to the other end surface, and the width of the clamping grooves 112 in the left-right direction is smaller than that of the turntable 11 in the left-right direction.
The inside of the high-temperature chamber 13 is provided with a fixing component, the fixing component is arranged at the right end part of the high-temperature chamber 13, the fixing component is detachably connected with the turntable 11 positioned at the right end, when the fixing component is connected with the turntable 11, the turntable 11 cannot rotate, and when the fixing component is separated from the turntable 11, the turntable 11 can rotate around the axis; in this embodiment, the securing assembly is a rigid three-jaw.
The inside of the high-temperature chamber 13 is also provided with a stirring roller barrel 12, the stirring roller barrel 12 is cylindrical, the stirring roller barrel 12 is made of rigid heat conducting materials, and the sizes of the left end and the right end of the stirring roller barrel 12 are smaller than the sizes of the clamping grooves 112;
the left end of the stirring roller barrel 12 is rotationally connected with the turntable 11 positioned at the left side, and the left end of the stirring roller barrel 12 is arranged in the clamping groove 112 at the left side so that the right end of the stirring roller barrel 12 can be kept horizontal or inclined downwards;
the right end of the stirring roller barrel 12 is rotationally connected with the turntable 11 positioned on the right side, and the right end of the stirring roller barrel 12 is arranged in the clamping groove 112 on the right side so that the left end of the stirring roller barrel 12 can be kept horizontal or inclined downwards;
it should be noted that, when the sum of the radius of the turntable 11 and the diameter of the stirring roller barrel 12 is equal to the radius of the high-temperature chamber 13, so that the turntable 11 rotates to drive the stirring roller barrel 12 to rotate around the axis of the turntable 11, one side, far away from the turntable 11, of both ends of the stirring roller barrel 12 always keeps close contact with the inner wall of the shell 14, so that the shell 14 also provides supporting force for the stirring roller barrel 12 in the rotation process of the stirring roller barrel 12, when the stirring roller barrel 12 rotates to the lower side of the turntable 11, the stirring roller barrel 12 falls off from the turntable 11 due to the overlarge gravity of the stirring roller barrel 12, thereby avoiding faults and ensuring the normal operation of a machine.
The agitator roller barrel 12 includes a cylindrical housing and a feed chamber open inside the cylindrical housing.
The cylindrical housing is made of a rigid heat conductive material and its cylinder comprises an arc ring 121 and an arc plate 122.
The arc of the cross section of the arc ring 121 is greater than 180 degrees, so the opening of the arc ring 121 is an arc opening with an arc less than 180 degrees; an arc-shaped containing cavity 123 is formed in one side, close to the arc-shaped opening, of the arc ring 121, the radian of the containing cavity 123 is equal to that of the arc-shaped opening, and the containing cavity 123 is formed along the length direction of the arc ring 121; the number of the accommodating cavities 123 is multiple, and the plurality of accommodating cavities 123 are sequentially arranged in the arc ring 121 from top to bottom;
each accommodating cavity 123 is open at one side close to the arc opening, and an abutting flange 124 is convexly arranged on the upper wall of one side of each accommodating cavity 123 close to the arc opening, and the abutting flange 124 is a protrusion of the upper wall of each accommodating cavity 123 towards the axis direction far away from the arc ring 121, so that the height of the opening of one side of each accommodating cavity 123 close to the arc opening is smaller than that of each accommodating cavity 123.
The arc plates 122 are arranged in the arc openings, the number of the arc plates 122 is equal to that of the accommodating cavities 123, the arc plates 122 are made of rigid materials, the length of the arc plates 122 is equal to that of the accommodating cavities 123, and the radian of the arc plates 122 is equal to that of the arc openings, so that when the arc plates 122 are arranged in the arc openings, the arc plates 122 and the arc rings 121 form a cylinder of a cylindrical shell;
the thickness of the arc plate 122 is smaller than the upper and lower heights of the accommodating cavity 123, a clamping block 125 is arranged on one side of the arc plate 122, which is close to the accommodating cavity 123, the clamping block 125 is an upward bulge on the arc plate 122, the length of the clamping block 125 is equal to the length of the arc plate 122, and the height of the clamping block 125 is equal to the height of the accommodating cavity 123, so that the arc plate 122 can be accommodated in the accommodating cavity 123 and can also extend out of the accommodating cavity 123; when the arc plate 122 extends out of the accommodating cavity 123, the clamping block 125 is abutted with the abutting flange 124 to prevent the arc plate 122 from completely leaving the accommodating cavity 123;
the arc plate 122 comprises a baffle plate and a plurality of filtering arc plates, and the baffle plate is slidably connected in the accommodating cavity 123 at the lowest side; the filtering arc plates are respectively and slidably connected in the rest of the accommodating cavity 123, the filtering holes are formed in the filtering arc plates, and the filtering holes of the filtering arc plates from top to bottom are sequentially enlarged, so that the filtering arc plate at the uppermost side only allows fine materials to pass through, and the filtering arc plate at the lowermost side enables coarse materials and fine materials to pass through;
in the process, staff can control different filtering arc plates to be positioned in the arc openings according to the fineness of the required materials so as to control the materials with different fineness to enter the high-temperature chamber 13 from the feeding chamber through the arc openings; the arrangement of the filtering arc plates slows down the speed of materials entering the high-temperature chamber 13 from the feeding chamber, so that when the arc opening is opened and then the materials are added into the feeding chamber, the materials enter the high-temperature chamber 13 from the arc opening completely after the materials do not completely reach the other end of the feeding chamber, and uneven distribution of the materials in the high-temperature chamber 13 is caused, the bottom of the high-temperature chamber 13 is covered with the materials, the space utilization rate of the high-temperature chamber 13 is improved, meanwhile, the manual stirring and adjustment of the high-temperature chamber 13 are not needed by staff, the efficiency is accelerated, and the steps are simplified;
in addition, if the filtration hole of the filtration arc board from the top down diminishes in proper order, then probably lead to baffle and polylith to filter the arc board and all be in the arc opening, when adding the material in the feeding chamber, the material of macroparticle can't pass through the filtration arc board of the lower floor through the filtration arc board of the upper strata to the card is dead in the arc opening, causes arc open-ended jam and card to die, and the emergence of above condition has been avoided in the setting of this application.
It should be noted that, when the stirring roller barrel 12 is disposed in the high temperature chamber 13, the arc opening of the arc ring 121 is always kept at the lower portion of the stirring roller barrel 12, so that when the arc opening is opened, the material in the feeding chamber can leave the feeding chamber from the arc opening under the action of gravity, so that the material in the feeding chamber flows.
The left end face of the cylindrical shell is provided with a through feeding hole, when the feeding hole is opened, the feeding cavity is communicated with the outside, at the moment, materials are added into the feeding cavity through the feeding hole, when the feeding hole is closed, the two ends of the cylindrical shell are closed, and the two ends of the feeding cavity, which are not the cylindrical shell, are communicated with the outside.
Working principle:
according to the method for preparing high purity silica sand described in the application of CN201710891388.2, the calcination and purification of silica sand include a first calcination and a second calcination, wherein the second calcination requires calcination after the silica sand is fully mixed with 200g/t sodium hydroxide, and therefore, a method for purifying and calcining silica sand comprises:
s1: when the quartz sand is calcined for the first time, the quartz sand to be calcined needs to be added into the high-temperature chamber 13, at the moment, an arc-shaped opening is positioned at the lower part of the stirring roller barrel 12 in the high-temperature chamber 13, and the rigid three-jaw clamping jaw is loosened, so that the turntable 11 positioned at the right side can rotate around the axle center;
s2: the rotating device 111 controls the left rotary table 11 to rotate around the axis of the rotary table 11, at this time, the right end of the stirring roller barrel 12 rotates along with the rotation of the left end of the stirring roller barrel 12 until the left end and the right end of the stirring roller barrel 12 rotate to the lowest position, and the stirring roller barrel 12 is horizontally arranged in the high-temperature chamber 13;
s3: the rigid three-jaw clamping device is used for clamping the turntable 11 on the right side by the rigid three-jaw clamping device, so that the turntable 11 is fixed and cannot rotate; the rotating device 111 controls the left rotary table 11 to rotate around the shaft again, and the right rotary table 11 is not moved until the left end of the stirring roller barrel 12 rotates to the highest position, and the stirring roller barrel 12 is at the high left end and the low right end, as shown in fig. 3 and 10, at this time, a worker can add quartz sand to be calcined into the feeding chamber from the feeding port at the left side of the stirring roller barrel 12, and after entering the feeding chamber, the quartz sand moves towards the lower side, so that the whole feeding chamber is filled with the quartz sand from left to right;
s4: the staff rotates the baffle plate and the plurality of filtering arc plates into the accommodating cavity 123, only the filtering arc plate at the lowest side is left to seal the arc opening, quartz sand in the feeding cavity enters the bottom of the high-temperature cavity 13 through the filtering arc plate at the lowest side at this moment, the quartz sand is continuously added into the feeding cavity until sufficient quartz sand exists in the high-temperature cavity 13, at this moment, the right end of the stirring roller barrel 12 is buried in the quartz sand, and the quartz sand remains in the feeding cavity at the right end of the stirring roller barrel 12;
s5: after the rotating device 111 controls the left rotary table 11 to rotate to the lowest position, the rigid three-jaw clamping jaw is loosened, the rotating device 111 controls the left rotary table 11 to rotate to the highest position, the right rotary table 11 also rotates along with the rotary table 11, at the moment, the stirring roller barrel 12 is shown in fig. 2 and 9, at the moment, quartz sand at the right end of the stirring roller barrel 12 also completely enters the high-temperature chamber 13, and a worker slides the baffle plate and all the filtering arc plates into the arc-shaped opening, so that the arc-shaped opening is closed;
s6: the rotating device 111 controls the turntables 11 at the left end and the right end to cooperatively rotate so that the stirring roller barrel 12 keeps a horizontal state in the high-temperature chamber 13 and rotates around the axis of the turntables 11, and in the rotating process, the stirring roller barrel 12 stirs quartz sand;
in the stirring process, the temperature in the high-temperature chamber 13 is controlled to rise from 10 ℃ to 500 ℃ every minute from the room temperature, then from 500 ℃ to 5 ℃ every minute, the calcination temperature is maintained at 750 ℃ for 30 minutes, the calcination temperature is maintained at 900 ℃ for 30 minutes, and the calcination temperature is maintained at 1300 ℃ for 30 minutes, so that the first calcination is completed.
S7: in the second calcination, the worker adds 200g/t sodium hydroxide into the high-temperature chamber 13 by the same method, and at the moment, the worker can select different filtering arc plates according to different fineness of the sodium hydroxide, so as to prevent the added sodium hydroxide from all entering the high-temperature chamber 13 from the left end of the feeding chamber due to the filtering Kong Guoda of the filtering arc plate at the lowest side, and the sodium hydroxide is concentrated at the left end of the high-temperature chamber 13, so that uneven distribution occurs; stopping adding sodium hydroxide until enough sodium hydroxide solid exists in the high-temperature chamber 13, and controlling the arc-shaped opening to be closed by staff;
s8: the rotating device 111 controls the turntables 11 at the left end and the right end to rotate in the same direction so that the stirring roller barrel 12 keeps a horizontal state in the high-temperature chamber 13 and rotates around the axis of the turntables 11, and in the rotating process, the stirring roller barrel 12 stirs quartz sand and sodium hydroxide to be uniformly mixed; the quartz sand and the sodium hydroxide are directly stirred in the high-temperature chamber 13, so that the step of manually stirring and mixing is avoided, meanwhile, equipment for mixing the quartz sand and the sodium hydroxide is saved, the steps and the equipment are simplified, and the cost is reduced;
s9: after stirring uniformly, the temperature was raised from 10℃to 800℃per minute from room temperature in the high-temperature chamber 13, and from 800℃to 4℃per minute, and maintained at 1000℃for 3 hours, to complete the second calcination.
The method for controlling the arc plate 122 to rotate and fix by the staff is as follows: preparing a supporting arc plate with the radian equal to that of the accommodating cavity 123 and the thickness smaller than the height of the accommodating cavity 123;
when the arc plate 122 is required to be fixedly arranged in the arc opening, a worker inserts the support arc plate into one side of the clamping block 125 away from the abutting flange 124, at this time, one side of the support arc plate abuts against the clamping block 125, the other side abuts against the inner wall of the accommodating cavity 123, and the arc plate 122 is fixed in the arc opening;
when the arc plate 122 is required to be fixedly arranged in the accommodating cavity 123, a worker inserts the support arc plate between the clamping block 125 and the abutting flange 124, at this time, one side of the support arc plate abuts against the clamping block 125, the other side abuts against the abutting flange 124, and the arc plate 122 is fixed in the accommodating cavity 123.
Claims (10)
1. The utility model provides a quartz sand purification calcination device which characterized in that: comprises a calciner (1), wherein the calciner (1) comprises a shell (14), and a high-temperature chamber (13) is arranged in the shell (14); the stirring part is arranged in the high-temperature chamber (13), the material of the stirring part comprises a heat conducting material, the length of the stirring part is equal to that of the shell (14), the length direction of the stirring part is consistent with that of the shell (14), two ends of the stirring part are rotationally connected with the inner wall of the high-temperature chamber (13), so that the stirring part can rotate in the high-temperature chamber (13), and the rotation of the two ends of the stirring part can be independently controlled, so that the stirring part can be kept horizontal or inclined in the high-temperature chamber;
a feeding chamber is formed in the stirring part, an opening is formed in the lower part of the stirring part, and the opening is communicated with the feeding chamber and the high-temperature chamber; an opening and closing component is fixedly connected in the opening and controls the opening and closing of the opening.
2. The quartz sand purifying and calcining device according to claim 1, wherein: the high-temperature chamber (13) is internally provided with turntables (11), the turntables (11) are made of rigid materials, the turntables (11) are disc-shaped, the number of the turntables (11) is two, the two turntables (11) are vertically arranged and symmetrically arranged at two ends of the high-temperature chamber (13), and the axle center connecting lines of the two turntables (11) are horizontal;
the two turntables (11) are fixedly connected with a rotating assembly, and the rotating assembly controls the two turntables (11) to independently rotate around a shaft;
two ends of the stirring part are respectively and rotatably connected with the outer circles of the two turntables (11).
3. A silica sand purifying and calcining apparatus according to claim 2 and wherein: the rotating assembly comprises a rotating device (111) and a fixed assembly;
the rotating device (111) is arranged on one side of the shell (14), and the rotating device (111) penetrates through the left end face of the shell (14) and is fixedly connected with the adjacent rotary table (11), so that the rotating device (111) controls the rotary table (11) to rotate around the shaft;
the other rotary disc (11) comprises a shaft part and a sleeve part; the shaft center part is fixedly connected with the inner wall of the shell (14); the outer sleeve part and the axle center part are coaxially arranged, the outer sleeve part is sleeved on the periphery of the axle center part, and the outer sleeve part is rotationally connected with the axle center part so that the turntable (11) can rotate around the axle;
the fixed component is detachably connected with the turntable (11), and when the fixed component is connected with the turntable (11), the turntable (11) cannot rotate, and the turntable (11) connected with the rotating device (111) independently rotates; when the fixed component is separated from the turntables (11), the turntables (11) can rotate around the axis, and the two turntables (11) synchronously rotate.
4. A silica sand purifying and calcining apparatus according to claim 2 and wherein: each turntable (11) is provided with a clamping groove (112), the clamping grooves (112) are formed in the periphery of the turntable (11), the clamping grooves (112) are formed from the end surface of the turntable (11) far away from the outside to the other end surface, and the width of the clamping grooves (112) in the left-right direction is smaller than that of the turntable (11);
the size at both ends of the stirring part is smaller than the size of the clamping groove (112), both ends of the stirring part are arranged in the corresponding clamping groove (112), and both ends of the stirring part are rotationally connected with the inner wall of the corresponding clamping groove (112).
5. A silica sand purifying and calcining apparatus according to claim 2 and wherein: the high-temperature chamber (13) is a cylindrical chamber; the stirring part is cylindrical; the sum of the radius of the turntable (11) and the diameter of the stirring part is equal to the radius of the high-temperature chamber (13).
6. A silica sand purifying and calcining apparatus according to claim 2 and wherein: the stirring part comprises a stirring roller barrel (12), and the stirring roller barrel (12) comprises a cylindrical shell; the cylinder of the cylindrical shell comprises an arc ring (121) and an arc plate (122) with the section radian larger than 180 degrees, and the opening of the arc ring (121) is an arc opening with the radian smaller than 180 degrees;
an arc-shaped containing cavity (123) is formed in one side, close to the arc-shaped opening, of the arc ring (121), the radian of the containing cavity (123) is equal to that of the arc-shaped opening, the containing cavities (123) are formed in the length direction of the arc ring (121), and one side, close to the arc-shaped opening, of each containing cavity (123) is opened;
the arc plate (122) is fixedly connected with the arc ring (121), the arc plate (122) is in sliding connection with the containing cavity (123), the length of the arc plate (122) is equal to that of the containing cavity (123), the radian of the arc plate (122) is equal to that of the arc opening, and the thickness of the arc plate (122) is smaller than the upper and lower heights of the containing cavity (123).
7. The quartz sand purifying and calcining apparatus according to claim 6, wherein: the upper walls of the accommodating cavity (123) close to one side of the arc-shaped opening are provided with abutting flanges (124) in a protruding mode, wherein the abutting flanges (124) are protrusions of the upper walls of the accommodating cavity (123) in the direction away from the axis of the arc ring (121), so that the height of the opening of the accommodating cavity (123) close to one side of the arc-shaped opening is smaller than that of the accommodating cavity (123);
one side of the arc plate (122) close to the containing cavity (123) is provided with a clamping block (125), the clamping block (125) is an upward bulge on the arc plate (122), the length of the clamping block (125) is equal to that of the arc plate (122), and the height of the clamping block (125) is equal to that of the containing cavity (123).
8. The quartz sand purifying and calcining apparatus according to claim 6, wherein: the number of the containing cavities (123) is multiple, and the containing cavities (123) are sequentially arranged in the arc ring (121) from top to bottom;
the number of the arc plates (122) is equal to that of the containing cavities (123), the arc plates (122) comprise a baffle plate and a plurality of filtering arc plates, and the baffle plate is connected in the containing cavity (123) at the lowest side in a sliding manner; the plurality of filtering arc plates are respectively and slidably connected in the rest of the accommodating cavities (123), the plurality of filtering arc plates are provided with filtering holes, and the filtering holes of the filtering arc plates from top to bottom are sequentially enlarged.
9. A method of using a silica sand purifying and calcining apparatus according to any one of claims 1 to 8, characterized by comprising the steps of: the two ends of the stirring part are independently rotated to different heights so as to incline the length direction of the stirring part, and the high-temperature chamber (13) is filled with materials through the stirring part; in the calcining process of the calcining furnace (1), the stirring part is kept horizontal, and the two ends of the stirring part synchronously rotate to enable the stirring part to rotate in the high-temperature chamber (13) so as to play a role in stirring; the staff controls the opening and closing assembly to work so that materials with different fineness enter the high-temperature chamber (13) through the opening.
10. The method of using a silica sand purifying and calcining apparatus as claimed in claim 9, wherein the step of controlling the opening and closing assembly by a worker to allow the materials of different fineness to enter the high temperature chamber (13) through the opening comprises: the method for controlling the arc plate (122) to rotate and fix by the staff comprises the following steps:
preparing a supporting arc plate with the radian equal to that of the accommodating cavity (123) and the thickness smaller than the height of the accommodating cavity (123);
when the arc plate (122) is required to be fixedly arranged in the arc opening, the supporting arc plate is inserted into one side of the clamping block (125) far away from the abutting flange (124), and at the moment, the two sides of the supporting arc plate are respectively abutted with the clamping block (125) and the inner wall of the accommodating cavity (123);
when the arc plate (122) is required to be fixedly arranged in the accommodating cavity (123), the supporting arc plate is inserted between the clamping block (125) and the abutting flange (124), and at the moment, the two sides of the supporting arc plate are respectively abutted with the clamping block (125) and the abutting flange (124).
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| CN202310385736.4A CN116465195B (en) | 2023-04-12 | 2023-04-12 | Quartz sand purifying and calcining device and method |
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| CN202310385736.4A CN116465195B (en) | 2023-04-12 | 2023-04-12 | Quartz sand purifying and calcining device and method |
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| CN116465195B CN116465195B (en) | 2023-10-13 |
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| DE202017106595U1 (en) * | 2017-10-30 | 2017-11-08 | Lianyungang Sunlight Quartz Ceramics Co., Ltd. | Quartz sand purification plant |
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| CN214086733U (en) * | 2020-12-30 | 2021-08-31 | 新沂市恒盛石英制品厂 | Discharging device for quartz sand purification |
| CN216814901U (en) * | 2022-03-14 | 2022-06-24 | 宁夏青铜峡市丰旗石英砂有限公司 | High-efficiency quartz sand drying furnace |
| CN114688866A (en) * | 2020-12-28 | 2022-07-01 | 新沂市恒盛石英制品厂 | Calcining processing equipment for purifying quartz sand |
| CN217188930U (en) * | 2022-05-10 | 2022-08-16 | 昆山国通新能源科技有限公司 | Uniform heating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518350A (en) * | 1984-03-29 | 1985-05-21 | Whirl-Air-Flow Corporation | Apparatus and method for calcining sand |
| CN103754889A (en) * | 2014-02-25 | 2014-04-30 | 连云港市东海县宏伟石英制品有限公司 | High-purity quartz sand purification method and special rotating device |
| DE202017106595U1 (en) * | 2017-10-30 | 2017-11-08 | Lianyungang Sunlight Quartz Ceramics Co., Ltd. | Quartz sand purification plant |
| CN110836605A (en) * | 2019-11-21 | 2020-02-25 | 江苏新达石英有限公司 | Calcining device for quartz sand purification and using method thereof |
| CN114688866A (en) * | 2020-12-28 | 2022-07-01 | 新沂市恒盛石英制品厂 | Calcining processing equipment for purifying quartz sand |
| CN214086733U (en) * | 2020-12-30 | 2021-08-31 | 新沂市恒盛石英制品厂 | Discharging device for quartz sand purification |
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| CN116465195B (en) | 2023-10-13 |
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