Purifying and calcining device and calcining method for environment-friendly quartz sand

Abstract

The invention discloses an environment-friendly quartz sand purifying and calcining device and calcining method.The environment-friendly quartz sand purifying and calcining device comprises a workbench, a communicating shell is fixedly installed on the upper end face of the workbench, and a secondary calcining box is arranged on the lower side of the interior of the communicating shell; a plurality of sets of electric telescopic arc rods are fixedly installed on the right side of the upper end face of the workbench, a supporting frame is fixedly connected to the upper end faces of the electric telescopic arc rods, and a preliminary calcining box is fixedly installed on the upper end face of the supporting frame; chlorinating agent gas is input into the secondary calcining box through the air injection mechanism, a transmission mechanism controls a hinged plate to swing in a reciprocating mode to achieve piston air injection work of a piston barrel, impurities on the surface of the secondary calcining box are further removed, and the secondary calcining box fully reacts with crushed and calcined quartz sand; and moreover, upward air injection can further prolong the hang time of the quartz sand, and it is guaranteed that the quartz sand falling on the fixed base plate can be fully crushed by the crushing mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand calcining, in particular to an environmentally friendly quartz sand purification and calcining device and a calcining method. Background Art

[0002] Quartz sand is quartz particles made by crushing quartz stone. Quartz sand calcination and purification is the treatment of quartz sand under high temperature conditions. The quartz sand after acid washing is placed in a high-temperature furnace and is usually calcined at above 1000 degrees Celsius. The purpose of calcination is to further remove residual organic and inorganic impurities and improve the crystallinity and stability of quartz sand. Calcination can also improve the purity and thermal stability of quartz sand.

[0003] Application No. CN201911149163.5 discloses a calcining device for purifying quartz sand and its use method. The calcining device for purifying quartz sand and its use method include a box, a drying pipe is fixedly connected to the top of the inner wall of the box, a calcining box is fixedly connected to both sides of the inner wall of the box and located below the drying pipe, a first base is fixedly connected to one side of the box, a vacuum pump is fixedly connected to the top of the first base, and the vacuum end of the vacuum pump is connected to a vacuum pipe, and one end of the vacuum pipe passes through the box and extends to the inside of the box. The calcining device for purifying quartz sand and its use method provided by the present invention can preheat the quartz sand after purifying the waste heat generated by calcination, so that the waste heat is reasonably utilized, avoiding the damage to the environment caused by direct emission of hot gas. In addition, the present invention uses spiral conveying to make the hot gas more uniform when preheating the quartz sand, avoiding the damage to the quartz sand caused by direct calcination.

[0004] However, the outlet of the feed hopper of the above technical solution can only cover part of the space of the calcining box. Therefore, when quartz sand is added to the calcining box through the feed hopper, the quartz sand tends to accumulate on one side of the calcining box. If the distribution of the quartz sand in the calcining box is not adjusted at this time, one side of the calcining box will be full of quartz sand. The quartz sand on this side is unevenly heated and incompletely calcined due to the excessive processing volume, while the space on the other side is idle, resulting in low space utilization; not only does it reduce the efficiency of production and processing and increase the calcination time, but it is also easy for the calcination and purification of the quartz sand to be not uniform and sufficient due to accumulation; and the existing calcining equipment only installs the chlorination agent air inlet pipe on the side wall of the furnace body, which causes the chlorination agent to be unable to fully contact and react with the quartz sand, affecting the calcination efficiency and the purification effect is poor. Summary of the invention

[0005] The object of the present invention is to provide an environmentally friendly quartz sand purification and calcination device and a calcination method, which improves the initial calcination effect and calcination time by setting a stirring mechanism, and further improves the calcination and purification effect by a crushing mechanism and an injection mechanism to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an environmentally friendly quartz sand purification and calcining device, comprising a workbench, a connecting shell is fixedly installed on the upper end surface of the workbench, a secondary calcining box is arranged on the lower side of the connecting shell, a plurality of groups of electric telescopic arc rods are fixedly installed on the right side of the upper end surface of the workbench, a support frame is fixedly connected to the upper end surface of the electric telescopic arc rod, a preliminary calcining box is fixedly installed on the upper end surface of the support frame, the left end of the preliminary calcining box is arranged at the upper end of the connecting shell, the lower end of the preliminary calcining box is always connected with the upper end of the secondary calcining box, a stirring mechanism for stirring the calcined quartz sand is arranged inside the preliminary calcining box, and a crushing mechanism for crushing and purifying the quartz sand is arranged inside the secondary calcining box; an injection mechanism for inputting chlorinating agent gas into the secondary calcining box is arranged on the lower side of the workbench, and a transmission mechanism for controlling the operation of the crushing mechanism and the injection mechanism is also arranged on the lower side of the workbench;

[0007] The stirring mechanism includes a driving pulley, a driving gear and three groups of stirring blades. The stirring mechanism stirs the quartz sand through the three groups of stirring blades. The driving pulley realizes the transmission work of the transmission mechanism through the driving pulley. The transmission mechanism includes a transmission belt, a driven pulley, a transmission articulated frame and a driving bevel gear. The transmission mechanism controls the crushing mechanism to perform the crushing work through the driving bevel gear, and the transmission mechanism controls the jet mechanism to perform the jet work through the transmission articulated frame.

[0008] Preferably, a motor is fixedly mounted on the upper end surface of the support frame, the output end of the motor is fixedly connected to the driving pulley, the rear end surface of the driving pulley is fixedly connected to the driving gear, the three groups of driving gears are rotatably connected to the interior of the preliminary calcination box, the upper stirring blade is meshed with the driving gear, the front end of the middle stirring blade is fixedly connected to the transmission gear, the front end of the lower stirring blade is fixedly connected to the fixed gear, the upper end of the transmission gear is meshed with the driving gear, and the lower end of the transmission gear is meshed with the fixed gear.

[0009] Preferably, the lower end surface of the workbench is fixedly connected to four groups of support columns, a baffle is fixedly connected between the left and right support columns, the rear end surface of the front baffle is rotatably connected to a connecting shaft, the driven pulley is rotatably connected to the surface of the connecting shaft, the driving pulley is transmission-connected to the driven pulley through a transmission belt, the rear end surface of the connecting shaft is fixedly connected to a transmission articulated frame, the rear end surface of the transmission articulated frame is fixedly connected to a driving shaft, and the driving bevel gear is fixedly connected to the surface of the driving shaft.

[0010] Preferably, the lower end face of the secondary calcining box is fixedly connected to a limiting frame, the limiting frame is rotatably connected to the driving shaft, the rear end face of the driving shaft is fixedly connected to a matching articulated frame, the rear end face of the matching articulated frame is fixedly connected to a matching shaft, and the rear end face of the matching shaft is rotatably connected to the front end of the rear baffle.

[0011] Preferably, the crushing mechanism includes a rotating sleeve and two groups of extrusion blocks, the upper surface of the rotating sleeve is rotatably connected with a connecting sleeve, the left and right sides of the connecting sleeve are respectively fixedly connected to the two groups of extrusion blocks, the extrusion blocks are attached to the inner wall of the secondary calcination box, the lower end face of the rotating sleeve is fixedly connected with a driven bevel gear, the driving bevel gear is meshingly connected with the driven bevel gear, the lower side of the secondary calcination box is fixedly connected with a fixed chassis, the rotating sleeve is rotatably connected to the fixed chassis, the interior of the rotating sleeve is fixedly connected to the upper end face of the fixed chassis with a fixed bevel gear, the interior of the rotating sleeve is fixedly connected to the inner end of the connecting sleeve with a mating bevel gear, and the mating bevel gear is meshingly connected to the surface of the fixed bevel gear.

[0012] Preferably, the jet mechanism includes a piston cylinder and an air storage box, the interior of the piston cylinder is slidably connected to a piston sleeve, the lower end of the piston sleeve is rotatably connected to a hinge plate, the lower end of the hinge plate is rotatably connected to the surface of a transmission hinge frame, the input end of the piston cylinder is connected to the air storage box through an air intake pipe, the output end of the piston cylinder is fixedly connected to an air supply pipe, an annular nozzle is fixedly installed on the surface of the secondary calcination box, a connecting sleeve is provided on the surface of the annular nozzle, the connecting sleeve is through-connected to the air supply pipe, and a one-way valve is provided at both the input and output ends of the piston cylinder.

[0013] Preferably, the jet mechanism is provided with two groups, which are respectively located at the front and rear sides of the secondary calcination box, the hinged plate at the rear side is rotatably connected to the surface of the matching hinged frame, and the gas storage box is fixedly installed on the lower end surface of the workbench, and the chlorinating agent gas is stored inside the gas storage box.

[0014] Preferably, a feed hopper is detachably connected to the upper end of the primary calcination box, a temperature detector is fixedly installed on the surface of the primary calcination box, a sealing plate is provided on the surface of the secondary calcination box, and a collecting box is placed at the lower end of the workbench.

[0015] The invention also discloses an environmentally friendly quartz sand calcining method, comprising the following steps:

[0016] Step A: The stirring mechanism performs multiple stirring on the quartz sand calcined in the preliminary calcination box;

[0017] Step B: The transmission mechanism controls the crushing mechanism to crush and purify the calcined quartz sand;

[0018] Step C: The jet mechanism sprays chlorinating agent gas into the secondary calcination box to mix and react with the quartz sand while jetting upward to increase the crushing and purification time.

[0019] Preferably, when it is necessary to adjust the quartz sand calcined in the preliminary calcination box, the preliminary calcination box is controlled to rotate by an electric telescopic arc rod to prevent the quartz sand in the preliminary calcination box from accumulating in one place and affecting the calcination effect. At this time, the preliminary calcination box drives the driving pulley to rotate, and the tension of the transmission belt is increased by increasing the distance between the driving pulley and the driven pulley, thereby increasing the transmission rate of the transmission mechanism and further accelerating the purification efficiency of the crushing mechanism and the jet mechanism.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention stirs the quartz sand by setting a stirring mechanism, and the driving gear, the transmission gear, and the fixed gear respectively drive the corresponding stirring blades to rotate in different directions to increase the residence time of the quartz sand in the preliminary calcining box, thereby improving the calcining effect of the quartz sand;

[0022] 2. The present invention crushes and purifies the quartz sand after the primary calcination by setting a crushing mechanism. The extrusion block rotates along the connecting sleeve and at the same time, thereby extruding and crushing the quartz sand inside the secondary calcination box. The quartz sand with a high impurity content will reduce its hardness under the high temperature of preheating and will be broken after extrusion. At this time, further calcination will allow impurities to leak out, thereby fully improving the calcination and purification effect.

[0023] 3. The present invention provides a jet mechanism to input chlorinating agent gas into the secondary calcining box. The transmission mechanism controls the reciprocating swing of the hinged plate to realize the piston jet operation of the piston cylinder, so that the chlorinating agent gas is input into the secondary calcining box through the annular nozzle, which not only further removes impurities on the surface of the chlorinating agent gas, so that the chlorinating agent gas can fully react with the crushed and calcined quartz sand, but also the upward jetting can further increase the hovering time of the quartz sand, ensuring that the quartz sand that has fallen on the fixed chassis can be fully crushed by the crushing mechanism.

[0024] 4. Compared with the prior art solutions, the present invention can also adjust the position of the preliminary calcination box to avoid the concentrated accumulation of quartz sand affecting the calcination effect, and when the angle of the preliminary calcination box is adjusted, the transmission ratio of the transmission mechanism will be changed by the tension of the active pulley. When the preliminary calcination box is adjusted upward, the preliminary calcination box is close to a vertical state, and the falling speed of the quartz sand inside it will be accelerated. The transmission mechanism increases the working efficiency of the crushing mechanism and the jet mechanism, ensuring that the crushing rate of the crushing mechanism is synchronized with the jet rate of the jet mechanism, thereby avoiding that the quartz sand is not fully calcined and purified. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1A flow chart of the steps of an environmentally friendly quartz sand calcining method proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of an environmentally friendly quartz sand purification and calcination device proposed by the present invention;

[0027] Figure 3 It is a schematic diagram of the lower structure of an environmentally friendly quartz sand purification and calcination device;

[0028] Figure 4 This is a schematic diagram of the connection relationship between the preliminary calcining box and the stirring mechanism;

[0029] Figure 5 This is a schematic diagram of the internal structure of the preliminary calcining box;

[0030] Figure 6 It is a structural schematic diagram of the transmission mechanism;

[0031] Figure 7 It is a schematic diagram of the connection relationship between the transmission mechanism and the crushing mechanism;

[0032] Figure 8 It is a structural diagram of the crushing mechanism;

[0033] Fig. 9 is a schematic diagram of the internal structure of the rotating sleeve;

[0034] Fig.10 It is a schematic diagram of the connection relationship between the air injection mechanism and the secondary calcination box;

[0035] Fig.11 for Figure 3 A partial enlarged view of the middle A;

[0036] In the figure: 1, workbench; 2, primary calcining box; 3, feed hopper; 4, support frame; 5, electric telescopic arc rod; 6, temperature detector; 7, support column; 8, baffle; 9, secondary calcining box; 10, connecting shell; 11, annular nozzle; 12, connecting sleeve; 13, fixed chassis; 14, blocking plate; 15, collecting box; 100, stirring mechanism; 101, motor; 102, driving pulley; 103, driving gear; 104, transmission gear; 105, fixed gear; 106, stirring blade; 200, transmission mechanism; 201, transmission belt; 20 2. Driven pulley; 203. Connecting shaft; 204. Transmission articulated frame; 205. Driving shaft; 206. Active bevel gear; 207. Limiting frame; 208. Matching articulated frame; 209. Matching shaft; 300. Crushing mechanism; 301. Rotating sleeve; 302. Connecting sleeve; 303. Extrusion block; 304. Matching bevel gear; 305. Fixed bevel gear; 306. Driven bevel gear; 400. Jet mechanism; 401. Piston cylinder; 402. Air storage box; 403. Articulated plate; 404. Air inlet pipe; 405. Air delivery pipe; 406. Piston sleeve. DETAILED DESCRIPTION

[0037] like Figure 1-Figure 11 As shown, the present invention provides a technical solution: an environmentally friendly quartz sand purification and calcining device, comprising a workbench 1, a connecting shell 10 is fixedly installed on the upper end surface of the workbench 1, a secondary calcining box 9 is arranged on the lower side of the inner part of the connecting shell 10, a plurality of groups of electric telescopic arc rods 5 are fixedly installed on the right side of the upper end surface of the workbench 1, a support frame 4 is fixedly connected to the upper end surface of the electric telescopic arc rod 5, a preliminary calcining box 2 is fixedly installed on the upper end surface of the support frame 4, and the left end of the preliminary calcining box 2 is arranged on the upper end of the connecting shell 10. The lower end of the preliminary calcining box 2 is always connected with the upper end of the secondary calcining box 9, the interior of the preliminary calcining box 2 is provided with a stirring mechanism 100 for stirring the calcined quartz sand, and the interior of the secondary calcining box 9 is provided with a crushing mechanism 300 for crushing and purifying the quartz sand; the lower side of the workbench 1 is provided with an injection mechanism 400 for inputting chlorinating agent gas into the secondary calcining box 9, and the lower side of the workbench 1 is also provided with a transmission mechanism 200 for controlling the operation of the crushing mechanism 300 and the injection mechanism 400;

[0038] The stirring mechanism 100 includes a driving pulley 102, a driving gear 103 and three groups of stirring blades 106. The stirring mechanism 100 stirs the quartz sand through the three groups of stirring blades 106. The driving pulley 102 realizes the transmission work of the transmission mechanism 200 through the driving pulley 102. The transmission mechanism 200 includes a transmission belt 201, a driven pulley 202, a transmission articulated frame 204 and a driving bevel gear 206. The transmission mechanism 200 controls the crushing mechanism 300 to perform the crushing work through the driving bevel gear 206. The transmission mechanism 200 controls the jet mechanism 400 to perform the jet work through the transmission articulated frame 204.

[0039] Furthermore, a motor 101 is fixedly mounted on the upper end surface of the support frame 4, the output end of the motor 101 is fixedly connected to a driving pulley 102, a driving gear 103 is fixedly connected to the rear end surface of the driving pulley 102, three sets of driving gears 103 are rotatably connected to the interior of the preliminary calcination box 2, an upper stirring blade 106 is meshedly connected to the driving gear 103, a front end of the middle stirring blade 106 is fixedly connected to a transmission gear 104, a front end of the lower stirring blade 106 is fixedly connected to a fixed gear 105, an upper end of the transmission gear 104 is meshedly connected to the driving gear 103, and a lower end of the transmission gear 104 is meshedly connected to the fixed gear 105.

[0040] Furthermore, four groups of support columns 7 are fixedly connected to the lower end surface of the workbench 1, a baffle 8 is fixedly connected between the left and right support columns 7, the rear end surface of the front baffle 8 is rotatably connected to the connecting shaft 203, the driven pulley 202 is rotatably connected to the surface of the connecting shaft 203, the driving pulley 102 is transmission-connected to the driven pulley 202 through the transmission belt 201, the rear end surface of the connecting shaft 203 is fixedly connected to the transmission articulated frame 204, the rear end surface of the transmission articulated frame 204 is fixedly connected to the driving shaft 205, and the driving bevel gear 206 is fixedly connected to the surface of the driving shaft 205.

[0041] Furthermore, the lower end face of the secondary calcining box 9 is fixedly connected to a limiting frame 207, the limiting frame 207 is rotatably connected to the driving shaft 205, the rear end face of the driving shaft 205 is fixedly connected to a matching hinged frame 208, the rear end face of the matching hinged frame 208 is fixedly connected to a matching shaft 209, and the rear end face of the matching shaft 209 is rotatably connected to the front end of the rear baffle 8.

[0042] Furthermore, if Figure 7-Figure 9 As shown, the crushing mechanism 300 includes a rotating sleeve 301 and two groups of extrusion blocks 303. The upper surface of the rotating sleeve 301 is rotatably connected with a connecting sleeve 302. The left and right sides of the connecting sleeve 302 are fixedly connected with the two groups of extrusion blocks 303 respectively. The extrusion blocks 303 are attached to the inner wall of the secondary calcination box 9. The lower end surface of the rotating sleeve 301 is fixedly connected with a driven bevel gear 306. The driving bevel gear 206 is meshingly connected with the driven bevel gear 306. The lower side of the secondary calcination box 9 is fixedly connected with a fixed chassis 13. The rotating sleeve 301 is rotatably connected with the fixed chassis 13. The interior of the rotating sleeve 301 is fixedly connected with a fixed bevel gear 305 on the upper end surface of the fixed chassis 13. The interior of the rotating sleeve 301 is fixedly connected with a matching bevel gear 304 on the inner end of the connecting sleeve 302. The matching bevel gear 304 is meshingly connected to the surface of the fixed bevel gear 305.

[0043] Furthermore, if Fig.10As shown, the jet mechanism 400 includes a piston cylinder 401 and an air storage box 402, the interior of the piston cylinder 401 is slidably connected to a piston sleeve 406, the lower end of the piston sleeve 406 is rotatably connected to a hinge plate 403, the lower end of the hinge plate 403 is rotatably connected to the surface of the transmission hinge frame 204, the input end of the piston cylinder 401 is connected to the air storage box 402 through an air inlet pipe 404, the output end of the piston cylinder 401 is fixedly connected to an air supply pipe 405, an annular nozzle 11 is fixedly installed on the surface of the secondary calcining box 9, the surface of the annular nozzle 11 is provided with a connecting sleeve 12, the connecting sleeve 12 is through-connected to the air supply pipe 405, and the input end and the output end of the piston cylinder 401 are both provided with a one-way valve.

[0044] In order to further improve the purification effect of quartz sand, Fig.10 As shown, two groups of jet mechanisms 400 are provided, which are respectively located at the front and rear sides of the secondary calcining box 9, the rear hinged plate 403 is rotatably connected to the surface of the matching hinged frame 208, and the gas storage box 402 is fixedly installed on the lower end surface of the workbench 1, and the gas storage box 402 stores chlorinating agent gas inside.

[0045] Furthermore, if Figure 2 As shown, the upper end of the preliminary calcining box 2 is detachably connected to a feed hopper 3, and a temperature detector 6 is fixedly installed on the surface of the preliminary calcining box 2. Figure 3 and Figure 7 As shown, a sealing plate 14 is provided on the surface of the secondary calcination box 9, an opening is fixedly provided on the lower side of the surface of the secondary calcination box 9, the sealing plate 14 is provided on the surface of the opening, and a collecting box 15 is placed at the lower end of the workbench 1. When the sealing plate 14 is rotated to release the sealing of the secondary calcination box 9, the quartz sand after calcination and purification will fall into the collecting box 15 through the opening.

[0046] An environmentally friendly quartz sand purification and calcination device comprises the following steps:

[0047] Step A: The stirring mechanism 100 performs multiple stirring on the quartz sand calcined in the preliminary calcination box 2;

[0048] Step B: The transmission mechanism 200 controls the crushing mechanism 300 to crush and purify the calcined quartz sand;

[0049] Step C: The jet mechanism 400 jets chlorinating agent gas into the secondary calcination box 9 to mix and react with the quartz sand, and jets upward to increase the crushing and purification time.

[0050] Furthermore, when it is necessary to adjust the quartz sand calcined in the preliminary calcination box 2, the preliminary calcination box 2 is controlled to rotate by the electric telescopic arc rod 5 to prevent the quartz sand in the preliminary calcination box 2 from accumulating in one place and affecting the calcination effect. At this time, the preliminary calcination box 2 drives the active pulley 102 to rotate, and increases the tension of the transmission belt 201 by increasing the distance between the active pulley 202 and the driven pulley 202, thereby increasing the transmission rate of the transmission mechanism 200 and further accelerating the purification efficiency of the crushing mechanism 300 and the jet mechanism 400.

[0051] Working principle: After installing the calcining device, the crushed quartz sand is fed into the preliminary calcining box 2 through the feed hopper 3, and the preliminary calcining box 2 starts to perform calcination heating work. The output end of the motor 101 drives the driving pulley 102 fixedly connected thereto to rotate, and the driving pulley 102 drives the driving gear 103 fixedly connected thereto to rotate counterclockwise, and the driving gear 103 drives the transmission gear 104 meshing with it to rotate clockwise, and the transmission gear 104 drives the fixed gear 105 meshing with it to rotate counterclockwise, and the driving gear 103, The transmission gear 104 and the fixed gear 105 respectively drive the stirring blades 106 connected thereto to rotate, thereby achieving the stirring of the quartz sand. Since the fixed gear 105 rotates in opposite directions to the transmission gear 104, the stirring blade 106 in the middle drives the stirred quartz sand to move downward in a clockwise direction, while the stirring blade 106 at the bottom rotates counterclockwise with the fixed gear 105 to stir the quartz sand under the upper stirring belt in the opposite direction, thereby increasing the residence time of the quartz sand in the preliminary calcining box 2, ensuring that the quartz sand can achieve sufficient calcination.

[0052] When the driving pulley 102 rotates, the driven pulley 202 is driven to rotate through the transmission belt 201, and the driven pulley 202 drives the connecting shaft 203 fixedly connected thereto to rotate, and the connecting shaft 203 drives the transmission articulated frame 204 fixedly connected thereto to rotate, and the transmission articulated frame 204 drives the driving shaft 205 fixedly connected thereto to rotate, and the driving shaft 205 drives the driving bevel gear 206 fixedly connected thereto and the matching articulated frame 208 to rotate, and the driving bevel gear 206 drives the driven bevel gear 306 meshing with it to rotate, and after the driven bevel gear 306 drives the rotating sleeve 301 fixedly connected thereto to rotate, the rotating sleeve 301 drives the connecting sleeve 302 rotatably connected thereto to rotate, and the connecting sleeve 302 drives the extrusion block 303 fixedly connected thereto to rotate, and the extrusion The pressing block 303 is tightly fitted to the inner wall of the secondary calcining box 9, and the calcined quartz sand flows into the secondary calcining box 9 through the connecting shell 10. The extrusion block 303 extrude and crush the calcined quartz sand in the secondary calcining box 9 while rotating. The hardness of the quartz sand with a high impurity content will be reduced under the high temperature of preheating, and it will be broken after extrusion and impact. The impurities are leaked out by secondary calcination in the secondary calcining box 9, and the purity is further improved. When the connecting sleeve 302 rotates, the matching bevel gear 304 is in a meshing connection state with the fixed bevel gear 305, so the matching bevel gear 304 will drive the extrusion block 303 to rotate when rotating, so that the extrusion block 303 can rotate along the center of the rotating sleeve 301 while rotating along the center of the connecting sleeve 302, further improving the crushing effect of the quartz sand.

[0053] In order to further adjust the calcination state and calcination efficiency of the quartz sand in the preliminary calcination box 2, the inclination angle of the preliminary calcination box 2 can be changed by extending the electric telescopic arc rod 5 to avoid the accumulation of quartz sand in one place and affecting the calcination effect. As the electric telescopic arc rod 5 drives the preliminary calcination box 2 to adjust the angle, the position of the driving pulley 102 also changes with the preliminary calcination box 2. As the preliminary calcination box 2 gradually moves upward, the spacing between the driving pulley 102 and the driven pulley 202 also increases. The transmission belt 201 is stretched and in a taut state. At this time, the transmission ratio between the driving pulley 102 and the driven pulley 202 will also increase, and the rotation speed of the transmission articulated frame 204 and the driving bevel gear 206 will also increase further. At this time, the crushing speed of the quartz sand by the crushing mechanism 300 will also be further accelerated, so that the quartz sand with a faster calcination and feeding speed can be crushed more quickly.

[0054] The transmission hinge frame 204 drives the hinge plate 403 rotatably connected thereto to swing while rotating. Since the hinge plate 403 is rotatably connected to the middle part of the transmission hinge frame 204, the transmission hinge frame 204 can realize the reciprocating swing of the hinge plate 403 when rotating. Since the upper end of the hinge plate 403 is rotatably connected to the lower end of the piston sleeve 406, the hinge plate 403 drives the upper piston sleeve 406 to reciprocate up and down while swinging, thereby realizing the piston jet operation of the piston cylinder 401, so that the piston cylinder 401 draws the chlorinating agent gas in the gas storage box 402 and inputs it into the secondary calcining box 9 through the annular nozzle 11. The chlorinating agent gas and the quartz sand are mixed and reacted to further remove impurities on the surface thereof, so that it can fully react with the crushed and calcined quartz sand.

[0055] When the annular nozzle 11 sprays the chlorinating agent gas into the secondary calcination box 9, the chlorinating agent gas is sprayed toward the upper end. The chlorinating agent gas blown upward will blow the quartz sand flowing into the secondary calcination box 9 upward, thereby increasing the air time of the quartz sand flowing into the secondary calcination box 9, which not only ensures that the quartz sand can achieve sufficient mixing reaction in the air, but also avoids the internal blockage of the secondary calcination box 9 caused by the quartz sand conveying speed being too fast, which affects the crushing and purification work. The falling speed of the quartz sand is slowed down under the dual synergy of the chlorinating agent gas sprayed upward by the annular nozzle 11 and the different steering directions between the transmission gear 104 and the fixed gear 105 to increase the stirring time of the quartz sand, so that the quartz sand can maintain a stable working state in the processes of preliminary calcination stirring, chlorinating agent gas mixing reaction, and secondary calcination purification after crushing during the calcination and purification work, thereby further improving the calcination and purification effect of the quartz sand.

[0056] While embodiments of the present invention have been shown and described, those skilled in the art will appreciate that numerous changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and scope of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An environmentally friendly quartz sand purification and calcination device, comprising a workbench (1), characterized in that: A connecting shell (10) is fixedly mounted on the upper end surface of the workbench (1), a secondary calcining box (9) is arranged on the lower inner side of the connecting shell (10), a plurality of groups of electric telescopic arc rods (5) are fixedly mounted on the right side of the upper end surface of the workbench (1), the upper end surface of the electric telescopic arc rods (5) is fixedly connected to a support frame (4), a primary calcining box (2) is fixedly mounted on the upper end surface of the support frame (4), the left end of the primary calcining box (2) is arranged on the upper end of the connecting shell (10), and the lower end of the primary calcining box (2) is connected to the secondary calcining box (9). The upper end of the saggar (9) is always connected; a stirring mechanism (100) for stirring the calcined quartz sand is arranged inside the primary calcination box (2); a crushing mechanism (300) for crushing and purifying the quartz sand is arranged inside the secondary calcination box (9); an injection mechanism (400) for inputting chlorinating agent gas into the secondary calcination box (9) is arranged on the lower side of the workbench (1); and a transmission mechanism (200) for controlling the operation of the crushing mechanism (300) and the injection mechanism (400) is also arranged on the lower side of the workbench (1); The stirring mechanism (100) comprises a driving pulley (102), a driving gear (103) and three groups of stirring blades (106). The stirring mechanism (100) stirs the quartz sand through the three groups of stirring blades (106). The driving pulley (102) realizes the transmission work of the transmission mechanism (200) through the driving pulley (102). The transmission mechanism (200) comprises a transmission belt (201), a driven pulley (202), a transmission hinge frame (204) and a driving bevel gear (206). The transmission mechanism (200) controls the crushing mechanism (300) to perform the crushing work through the driving bevel gear (206). The transmission mechanism (200) controls the jetting mechanism (400) to perform the jetting work through the transmission hinge frame (204).

2. The environmentally friendly quartz sand purification and calcining device according to claim 1, characterized in that: A motor (101) is fixedly mounted on the upper end surface of the support frame (4); the output end of the motor (101) is fixedly connected to a driving pulley (102); the rear end surface of the driving pulley (102) is fixedly connected to a driving gear (103); three groups of driving gears (103) are rotatably connected to the interior of the preliminary calcining box (2); the stirring blade (106) on the upper side is meshedly connected to the driving gear (103); the front end of the stirring blade (106) in the middle is fixedly connected to a transmission gear (104); the front end of the stirring blade (106) on the lower side is fixedly connected to a fixed gear (105); the upper end of the transmission gear (104) is meshedly connected to the driving gear (103); and the lower end of the transmission gear (104) is meshedly connected to the fixed gear (105).

3. The environmentally friendly quartz sand purification and calcining device according to claim 2, characterized in that: The lower end surface of the workbench (1) is fixedly connected to four groups of support columns (7), a baffle (8) is fixedly connected between the left and right support columns (7), the rear end surface of the front baffle (8) is rotatably connected to a connecting shaft (203), the driven pulley (202) is rotatably connected to the surface of the connecting shaft (203), the driving pulley (102) is transmission-connected to the driven pulley (202) via a transmission belt (201), the rear end surface of the connecting shaft (203) is fixedly connected to a transmission articulated frame (204), the rear end surface of the transmission articulated frame (204) is fixedly connected to a driving shaft (205), and the driving bevel gear (206) is fixedly connected to the surface of the driving shaft (205).

4. The environmentally friendly quartz sand purification and calcining device according to claim 3 is characterized in that: The lower end face of the secondary calcining box (9) is fixedly connected to a limiting frame (207), the limiting frame (207) is rotatably connected to the driving shaft (205), the rear end face of the driving shaft (205) is fixedly connected to a matching hinge frame (208), the rear end face of the matching hinge frame (208) is fixedly connected to a matching shaft (209), and the rear end face of the matching shaft (209) is rotatably connected to the front end of the rear baffle (8).

5. The environmentally friendly quartz sand purification and calcining device according to claim 4, characterized in that: The crushing mechanism (300) comprises a rotating sleeve (301) and two groups of extrusion blocks (303). The upper surface of the rotating sleeve (301) is rotatably connected to a connecting sleeve (302). The left and right sides of the connecting sleeve (302) are respectively fixedly connected to the two groups of extrusion blocks (303). The extrusion blocks (303) are attached to the inner side wall of the secondary calcining box (9). The lower end surface of the rotating sleeve (301) is fixedly connected to a driven bevel gear (306). The driving bevel gear (206) and the driven bevel gear (306) are connected to each other. 6) meshing connection, the lower side of the secondary calcining box (9) is fixedly connected to a fixed chassis (13), the rotating sleeve (301) is rotatably connected to the fixed chassis (13), the interior of the rotating sleeve (301) is fixedly connected to the upper end surface of the fixed chassis (13) with a fixed bevel gear (305), the interior of the rotating sleeve (301) is fixedly connected to the inner end of the connecting sleeve (302) with a matching bevel gear (304), and the matching bevel gear (304) is meshingly connected to the surface of the fixed bevel gear (305).

6. The environmentally friendly quartz sand purification and calcining device according to claim 5, characterized in that: The jet mechanism (400) comprises a piston cylinder (401) and an air storage box (402). The piston cylinder (401) is slidably connected to a piston sleeve (406) inside. The lower end of the piston sleeve (406) is rotatably connected to a hinge plate (403). The lower end of the hinge plate (403) is rotatably connected to the surface of a transmission hinge frame (204). The input end of the piston cylinder (401) is connected to the air storage box (402) through an air intake pipe (404). The output end of the piston cylinder (401) is fixedly connected to an air supply pipe (405). An annular nozzle (11) is fixedly installed on the surface of the secondary calcination box (9). A connecting sleeve (12) is provided on the surface of the annular nozzle (11). The connecting sleeve (12) is connected to the air supply pipe (405). Both the input end and the output end of the piston cylinder (401) are provided with a one-way valve.

7. The environmentally friendly quartz sand purification and calcining device according to claim 6, characterized in that: The jet mechanism (400) is provided with two groups, which are respectively located at the front and rear sides of the secondary calcination box (9), and the hinged plate (403) at the rear side is rotatably connected to the surface of the matching hinged frame (208), and the gas storage box (402) is fixedly installed on the lower end surface of the workbench (1), and the gas storage box (402) stores chlorinating agent gas inside.

8. The environmentally friendly quartz sand purification and calcining device according to claim 7, characterized in that: The upper end of the primary calcining box (2) is detachably connected to a feed hopper (3), a temperature detector (6) is fixedly installed on the surface of the primary calcining box (2), a sealing plate (14) is provided on the surface of the secondary calcining box (9), and a collecting box (15) is placed at the lower end of the workbench (1).

9. A method for calcining environmentally friendly quartz sand, using the environmentally friendly quartz sand purification and calcining device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step A: The stirring mechanism (100) stirs the quartz sand calcined in the preliminary calcination box (2) multiple times; Step B: the transmission mechanism (200) controls the crushing mechanism (300) to crush and purify the calcined quartz sand; Step C: The jet mechanism (400) jets chlorinating agent gas into the secondary calcination box (9) to react with the quartz sand and jets upward to increase the crushing and purification time.

10. The environmentally friendly quartz sand calcining method according to claim 9, characterized in that: When it is necessary to adjust the quartz sand calcined in the preliminary calcination box (2), the preliminary calcination box (2) is controlled to rotate by an electric telescopic arc rod (5) to prevent the quartz sand in the preliminary calcination box (2) from piling up in one place to affect the calcination effect. At this time, the preliminary calcination box (2) drives the driving pulley (102) to rotate, and the tension of the transmission belt (201) is increased by increasing the distance between the driving pulley (102) and the driven pulley (202), thereby increasing the transmission speed of the transmission mechanism (200) and further accelerating the purification efficiency of the crushing mechanism (300) and the jet mechanism (400).

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