Quartz powder production process and equipment thereof

Abstract

The invention discloses a quartz powder production process, and relates to the technical field of quartz processing, the quartz powder production process comprises the following steps: S1, a feeder transfers ore to a vibrating screen for cleaning through a conveyor belt, and the vibrating screen divides the ore into a first specification and a second specification according to the size of the ore; s2, the ore of the first specification is manually selected, the ore of the second specification is subjected to secondary cleaning and screening, and then the ore is selected through a color selector; s3, the screened ore of the first specification is crushed, and then crushed materials and tailings are obtained through a drum screen; s4, putting the crushed material and the ore of the second specification into a ball mill for grinding to obtain quartz powder; and S5, quantitative quartz powder is conveyed into a homogenizing device, the homogenizing device evenly mixes the quartz powder, the whole color of the quartz powder is the same, and finally the quartz powder is packaged and stored. The problems that due to the chromatic aberration of quartz powder in the same batch, produced products have chromatic aberration in appearance, and large-batch use of the products is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of quartz processing, and in particular to a quartz powder production process and equipment thereof. Background Art

[0002] Quartz powder is used in many fields such as glass, ceramics, rubber and metallurgy because of its high whiteness, no impurities and low iron content. The production process of quartz powder is generally: quartz stone cleaning, selection, crushing, screening, iron removal, grinding and grading. Quartz stone is generally selected according to color grade, but the color of each grade of ore is a range value, and there will be certain color differences within the same grade, so there will be color differences in the same batch of quartz powder produced. When these quartz powders are used to produce products such as quartz plates and ceramics that focus on appearance, there will be color differences in the same batch of products, which will affect the use of the entire batch of products.

[0003] Therefore, a quartz powder production process and equipment thereof are needed. Summary of the invention

[0004] In view of the above shortcomings, the present invention provides a quartz powder production process and equipment, which can solve the problem that the color difference of the quartz powder itself in the same batch causes the appearance of the produced products to have color difference, thereby affecting the large-scale use of the products. The specific technical solution is as follows:

[0005] A quartz powder production process, comprising:

[0006] S1: The feeder transfers the ore to the vibrating screen for cleaning through a conveyor belt. The vibrating screen separates the ore into the first and second specifications according to the size of the ore, and cleans the dust and impurities on the outer surface of the ore at the same time;

[0007] S2: The ore of the first specification is manually selected and graded according to the color of the ore. The ore of the second specification is secondary cleaned and screened, and then selected by a color sorter to separate impurities from the ore.

[0008] S3: The first specification ore after screening is crushed by a crusher, and then passed through a drum screen to obtain crushed material and tailings with a diameter of 2-15 mm. The tailings are deironed by an electromagnetic deironing machine to obtain deironing ash and crushed material with a diameter of less than 16 meshes;

[0009] S4: The crushed material and the ore of the second specification are put into the ball mill for grinding to obtain quartz powder, and then the quartz powder of unqualified size is returned to the ball mill through the classifier;

[0010] S5: A certain amount of quartz powder is transported into a homogenizing device, which mixes the quartz powder evenly to make the overall color the same. Finally, the homogenized quartz powder is packaged and stored.

[0011] Preferably, the first specification in S1 is a diameter of 3-32 cm, and the second specification is a diameter less than 3 cm.

[0012] Preferably, the crusher in S3 includes a jaw crusher, a cone crusher and an impact crusher and sand maker, and the ore enters the jaw crusher, the cone crusher and the impact crusher and sand maker in sequence, and finally obtains crushed material and tailings with a diameter of 2-15 mm.

[0013] Preferably, the jaw plate gap of the jaw crusher is less than or equal to 5 cm.

[0014] Preferably, in S4, a first high-pressure fan is used to collect dust from the classifier, the operating current of the first high-pressure fan is 260-330A, and the operating current of the ball mill is 550-750A.

[0015] Preferably, after secondary cleaning and screening, the ore of the second specification in S2 is cleaned and screened to obtain fine ore with diameters of 8mm-3cm and 2-8mm, and washed ore sand with a diameter of less than 2mm, and the fine ore is selected by a color sorter.

[0016] A quartz powder production equipment includes the above-mentioned quartz powder production process, the homogenizing device includes a homogenizing tank, a solenoid valve, a feed pipe, a discharge pipe, an air inlet pipe, an air guide pipe and a second high-pressure fan, the homogenizing tank includes a cylindrical portion and a conical portion, the cylindrical portion and the conical portion are connected, the homogenizing tank is vertically installed on the ground with the conical portion facing downward, the end of the cylindrical portion away from the conical portion is connected to one end of the feed pipe, the solenoid valve is installed at the end of the feed pipe close to the cylindrical portion, one end of the discharge pipe is connected to the cone top of the cone, the solenoid valve is installed at the end of the discharge pipe close to the cone, a plurality of groups of air inlet holes are arranged in a circumferential array on the conical surface of the cone, each of the air inlet pipes is connected to each group of air inlet holes, one end of the air guide pipe is connected to the middle of the air inlet pipe, and the other end of the air guide pipe is connected to the second high-pressure fan.

[0017] Preferably, a plurality of baffles corresponding to the air inlet holes are rotatably mounted on the inner wall of the cone portion through a hinge, and the baffles are arc-shaped and can fit completely with the inner wall of the cone portion. A torsion spring is installed in the hinge, and when the second high-pressure fan is not started, the baffles completely cover the air inlet holes under the action of the torsion spring.

[0018] Preferably, the portion where the air intake pipe is connected to the conical portion is perpendicular to the conical surface of the conical portion, and the portion where the air guide pipe is connected to the air intake pipe is perpendicular to the air intake pipe.

[0019] Preferably, the feed pipe and the discharge pipe both use screw conveyors to transport materials.

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

[0021] 1. Compared with the existing quartz powder production process, after the crushed material is ground into powder by a ball mill, the quartz powder in a uniform batch is put into a homogenizing device for homogenization. The homogenizing device stirs the quartz powder in the homogenizing tank by a high-pressure airflow to make it uniformly mixed, so that the quartz powder with uneven color in the same batch has an overall uniform color, so that the products produced using the same batch of quartz powder will not have color differences, and will not affect the use of large quantities together.

[0022] 2. The present invention cooperates with the torsion spring and the baffle. When the second high-pressure blower is not started, the baffle completely blocks the air inlet under the action of the torsion spring, thereby preventing the quartz powder from blocking the air inlet and affecting the next homogenization process. When the second high-pressure blower is started, the airflow completely pushes the baffle open, which will not affect the homogenization of the quartz powder by the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0024] Figure 1 is a process flow chart of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the homogenizing device of the present invention;

[0026] Figure 3 The internal structure diagram of the cone portion of the present invention;

[0027] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0028] 1. Homogenizing tank; 101. Cylindrical part; 102. Conical part; 2. Solenoid valve; 3. Feed pipe; 4. Discharge pipe; 5. Air inlet pipe; 6. Air guide pipe; 7. Hinge; 8. Baffle. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] refer to Figure 1 , a quartz powder production process, comprising:

[0031] S1: The feeder transfers the ore to the vibrating screen for cleaning through a conveyor belt. The vibrating screen separates the ore into the first specification with a diameter of 3-32 cm and the second specification with a diameter of less than 3 cm according to the size of the ore, and cleans the dust and impurities on the outer surface of the ore at the same time;

[0032] S2: The first specification ore is manually selected and graded according to the color of the ore, and the ore is divided into A ore, B ore and miscellaneous stones. The second specification ore is secondary cleaned and screened, and then selected by a color sorter to separate impurities from the ore;

[0033] S3: The first specification ore after screening is crushed by a crusher, and then passed through a drum screen to obtain crushed material and tailings with a diameter of 2-15 mm. The tailings are deironed by an electromagnetic deironing machine to obtain deironing ash and crushed material with a diameter of less than 16 meshes;

[0034] S4: The crushed material and the ore of the second specification are put into the ball mill for grinding to obtain quartz powder, and then the quartz powder of unqualified size is returned to the ball mill through the classifier;

[0035] S5: A certain amount of quartz powder is transported into a homogenizing device, which mixes the quartz powder evenly to make the overall color the same. Finally, the homogenized quartz powder is packaged and stored.

[0036] Crusher includes jaw crusher, cone crusher and impact crusher. The ore enters jaw crusher, cone crusher and impact crusher in turn, and finally obtains crushed material and tailings with a diameter of 2-15mm. Before the ore enters the jaw crusher, it also needs to pass through the pendulum feeder and vibrating screen. The vibrating screen is used to separate dust and impurities, so the staff needs to patrol frequently to avoid clogging of the vibrating screen. At the same time, it is necessary to pay attention to the size of the feeding ore at all times to avoid clogging of the silo. The jaw plate gap of the jaw crusher is less than or equal to 5cm to avoid clogging of the cone crusher.

[0037] The first high-pressure fan is used to collect dust for the classifier. The operating current of the first high-pressure fan is 260-330A, and the operating current of the ball mill is 550-750A. The staff needs to always pay attention to the current changes of the first high-pressure fan and the ball mill host. The current can reflect the status of the ball mill. Using these two ranges of current to operate can make the ore grinding and dust collection reach a more ideal state.

[0038] After secondary cleaning and screening, the second specification ore is divided into fine ore with diameters of 8mm-3cm and 2-8mm, and washed ore sand with a diameter of less than 2mm. The fine ore is selected by a color sorter, and the washed ore sand is judged as A ore, B ore and miscellaneous stones based on the overall quality, and then it is decided whether to recycle it.

[0039] refer to Figure 2 A quartz powder production equipment includes the above-mentioned quartz powder production process, the homogenizing device includes a homogenizing tank 1, a solenoid valve 2, a feed pipe 3, a discharge pipe 4, an air inlet pipe 5, an air guide pipe 6 and a second high-pressure blower, the homogenizing tank 1 includes a cylindrical portion 101 and a conical portion 102, the cylindrical portion 101 and the conical portion 102 are connected, the homogenizing tank 1 is vertically installed on the ground, and the conical portion 102 faces downward, and the end of the cylindrical portion 101 away from the conical portion 102 is welded to one end of the feed pipe 3, and the solenoid valve 2 is connected to the conical portion 102 by welding. The magnetic valve 2 is installed on the end of the feed pipe 3 close to the cylindrical portion 101 by bolts, one end of the discharge pipe 4 is connected to the cone top of the conical portion 102 by a flange, and the electromagnetic valve 2 is installed on the end of the discharge pipe 4 close to the conical portion 102 by bolts. A plurality of groups of air inlet holes are arranged in a circular array on the conical surface of the conical portion 102, each air inlet pipe 5 is welded and connected to each group of air inlet holes, one end of the air guide pipe 6 is welded and connected to the middle part of the air guide pipe 5, and the other end of the air guide pipe 6 is connected to the second high-pressure blower by a flange.

[0040] Before the homogenization device is started, a certain amount of quartz powder will be transported to the homogenization tank 1 through the feed pipe 3. At this time, the solenoid valve 2 of the discharge pipe 4 is closed. After the quartz powder is transported, the solenoid valve 2 of the feed pipe 3 is closed, and the second high-pressure blower is started. The second high-pressure blower will input the filtered air into the air intake pipe 5 through the air guide pipe 6, and then guide the air intake pipe 5 to enter the homogenization tank 1 from the air intake hole. Since the part where the air intake pipe 5 is connected to the conical part 102 is perpendicular to the conical surface of the conical part 102, the airflow will blow the quartz powder in an inclined upward direction to prevent the quartz powder from being deposited at the bottom and unable to be evenly mixed. The second high-pressure blower will stop after the set time of startup. At this time, the overall color of the quartz powder in the homogenization tank 1 is the same. Then, the solenoid valve 2 of the discharge pipe 4 is opened, and the ton bag is used for packaging and storage.

[0041] refer to Figure 3 and Figure 4A plurality of baffles 8 corresponding to the air inlet holes are rotatably mounted on the inner wall of the conical portion 102 through a hinge 7. The baffles 8 are arc-shaped and can be completely fitted with the inner wall of the conical portion 102. A torsion spring is installed in the hinge 7. When the second high-pressure blower is not started, the baffles 8 completely cover the air inlet holes under the action of the torsion spring. The baffles 8 can prevent the quartz powder from blocking the air inlet holes and ensure the stability of the operation of the homogenizing device.

[0042] The connection portion between the air guide pipe 6 and the air intake pipe 5 is perpendicular to the air intake pipe 5, so that the high-pressure airflow diverted to each air intake hole can be relatively the same, thereby ensuring a homogenizing effect.

[0043] The feed pipe 3 and the discharge pipe 4 both use screw conveyors to transport materials. The use of bolt conveyors to transport quartz powder is more stable and can accurately control the input and output amounts, thereby ensuring the effect of soul arrest and production efficiency. At the same time, the use of screw conveyors can prevent the quartz powder from being affected by the residual air pressure in the homogenization tank 1 when feeding and discharging materials, thereby ensuring the stability of the operation of the homogenization device.

[0044] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A quartz powder production process, characterized in that: include: S1: The feeder transfers the ore to the vibrating screen for cleaning through a conveyor belt. The vibrating screen separates the ore into the first and second specifications according to the size of the ore, and cleans the dust and impurities on the outer surface of the ore at the same time; S2: The ore of the first specification is manually selected and graded according to the color of the ore. The ore of the second specification is secondary cleaned and screened, and then selected by a color sorter to separate impurities from the ore. S3: The first specification ore after screening is crushed by a crusher, and then passed through a drum screen to obtain crushed material and tailings with a diameter of 2-15 mm. The tailings are deironed by an electromagnetic deironing machine to obtain deironing ash and crushed material with a diameter of less than 16 meshes; S4: The crushed material and the ore of the second specification are put into the ball mill for grinding to obtain quartz powder, and then the quartz powder of unqualified size is returned to the ball mill through the classifier; S5: A certain amount of quartz powder is transported into a homogenizing device, which mixes the quartz powder evenly to make the overall color the same. Finally, the homogenized quartz powder is packaged and stored.

2. A quartz powder production process according to claim 1, characterized in that: The first specification in S1 is a diameter of 3-32 cm, and the second specification is a diameter less than 3 cm.

3. A quartz powder production process according to claim 1, characterized in that: The crushers in S3 include a jaw crusher, a cone crusher and an impact crusher and sand maker. The ore enters the jaw crusher, the cone crusher and the impact crusher and sand maker in sequence, and finally obtains crushed material and tailings with a diameter of 2-15 mm.

4. A quartz powder production process according to claim 3, characterized in that: The jaw plate gap of the jaw crusher is less than or equal to 5 cm.

5. A quartz powder production process according to claim 1, characterized in that: In S4, a first high-pressure fan is used to collect dust from the classifier, the operating current of the first high-pressure fan is 260-330A, and the operating current of the ball mill is 550-750A.

6. A quartz powder production process according to claim 1, characterized in that: After secondary cleaning and screening, the ore of the second specification in S2 is subjected to fine ore with diameters of 8mm-3cm and 2-8mm, and washed ore sand with a diameter of less than 2mm. The fine ore is selected by a color sorter.

7. A quartz powder production device, comprising a quartz powder production process according to any one of claims 1 to 6, characterized in that: The homogenizing device comprises a homogenizing tank (1), a solenoid valve (2), a feed pipe (3), a discharge pipe (4), an air inlet pipe (5), an air guide pipe (6) and a second high-pressure blower. The homogenizing tank (1) comprises a cylindrical portion (101) and a conical portion (102). The cylindrical portion (101) and the conical portion (102) are connected. The homogenizing tank (1) is vertically installed on the ground with the conical portion (102) facing downward. One end of the cylindrical portion (101) away from the conical portion (102) is connected to one end of the feed pipe (3). The solenoid valve (2) is connected to one end of the feed pipe (3). The valve (2) is installed at one end of the feed pipe (3) close to the cylindrical portion (101), one end of the discharge pipe (4) is connected to the top of the cone (102), the solenoid valve (2) is installed at one end of the discharge pipe (4) close to the cone (102), a plurality of groups of air inlet holes are arranged in a circular array on the cone surface of the cone (102), each of the air inlet pipes (5) is connected to each group of air inlet holes, one end of the air guide pipe (6) is connected to the middle of the air inlet pipe (5), and the other end of the air guide pipe (6) is connected to the second high-pressure blower.

8. The quartz powder production equipment according to claim 7, characterized in that: A plurality of baffles (8) corresponding to the air inlet holes are rotatably mounted on the inner wall of the conical portion (102) via a hinge (7); the baffles (8) are arc-shaped and can fit completely with the inner wall of the conical portion (102); a torsion spring is installed in the hinge (7); when the second high-pressure fan is not started, the baffles (8) completely cover the air inlet holes under the action of the torsion spring.

9. The quartz powder production equipment according to claim 7, characterized in that: The portion where the air intake pipe (5) is connected to the conical portion (102) is perpendicular to the conical surface of the conical portion (102), and the portion where the air guide pipe (6) is connected to the air intake pipe (5) is perpendicular to the air intake pipe (5).

10. The quartz powder production equipment according to claim 7, characterized in that: The feed pipe (3) and the discharge pipe (4) both use screw conveyors to transport materials.

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