A high purity quartz sand drying device

Abstract

The utility model discloses a high-purity quartz sand drying device, which relates to the technical field of quartz sand drying devices, including a drum dryer with a drying cylinder and a turning assembly, wherein the turning assembly includes a turning unit, a flow blocking unit, and a flow guiding unit; the turning unit is used to turn the quartz sand; the flow blocking unit is used to block the flow of the quartz sand; the flow guiding unit is used to cooperate with the turning unit to allow the quartz sand to pass through the flow blocking unit and move forward. The utility model can limit the moving speed of the quartz sand inside the drying cylinder by setting a flow blocking ring and an inclined spacer, thereby increasing the moving time of the quartz sand in the drying cylinder, thereby increasing the heat drying time of the quartz sand, so that when the length of the drying cylinder is shorter than that of the traditional drying cylinder, the drying effect of the quartz sand can be guaranteed, and the space of the entire device can be reduced by shortening the drying cylinder, which is convenient for better transfer and installation.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz sand drying devices, in particular to a high-purity quartz sand drying device. Background Art

[0002] Quartz sand is quartz particles made by crushing quartz stone. It is widely used in glass, casting, ceramics and fireproof materials, smelting ferrosilicon, metallurgical solvents, metallurgy, construction, chemicals, plastics, rubber, abrasives, filter materials and other industries.

[0003] Quartz sand dryer is used to dry quartz sand materials with a certain humidity and particle size range. The working principle of quartz sand dryer is as follows:

[0004] Quartz sand is sent to the hopper by a belt conveyor or bucket elevator, and then enters the feeding end through the feeding pipe of the hopper feeder. The inclination of the feeding pipe should be greater than the natural inclination of the material, so that the material can flow smoothly into the dryer cylinder. The dryer cylinder is a rotating cylinder slightly inclined to the horizontal line. The material is added from the higher end, and the heat carrier enters from the lower end (the heat carrier is generally divided into hot air, flue gas, etc.), and contacts with the material in countercurrent. There are also cases where the heat carrier and the material flow into the cylinder together;

[0005] As the drum rotates, the material moves to the lower end due to gravity. During the process of the wet material moving forward in the drum, it is directly or indirectly heated by the heat carrier, so that the wet material can be dried, and then sent out at the discharge end through a belt conveyor or a screw conveyor;

[0006] At the same time, a shoveling plate is installed on the inner wall of the cylinder. Its function is to scoop up the materials and scatter them down, so as to increase the contact surface between the materials and the airflow, so as to increase the drying rate and promote the advancement of the material.

[0007] When the quartz sand dryer is actually used, since the dryer cylinder is inclined with respect to the horizontal line, the quartz stone inside the dryer cylinder will roll toward the lower end of the dryer cylinder, and the flipping of the copying plate makes the rolling speed faster. Therefore, in order to ensure the drying effect, the overall length of the dryer cylinder will be set longer, which requires a larger placement space for the equipment. Based on this, in order to shorten the overall length of the dryer cylinder while ensuring the drying effect, a high-purity quartz sand drying device is provided. Utility Model Content

[0008] The purpose of the utility model is to provide a high-purity quartz sand drying device in order to solve the above-mentioned problems.

[0009] To achieve the above object, the utility model provides the following technical solutions: a high-purity quartz sand drying device, comprising a drum dryer having a drying cylinder, wherein a turning assembly is arranged on the inner side of the drying cylinder, and the turning assembly is used to turn over and transport the quartz sand inside the drying cylinder;

[0010] The material turning assembly includes a turning unit, a flow blocking unit, and a flow guiding unit;

[0011] The turning unit is used to turn over the quartz sand inside the drying cylinder;

[0012] The flow blocking unit is used to block the flow of the quartz sand inside the drying cylinder, thereby slowing down the flow of the quartz sand;

[0013] The flow guiding unit is used to cooperate with the turning unit to enable the quartz sand to pass through the flow blocking unit and move forward, thereby ensuring the normal transportation of the quartz sand.

[0014] As a further solution of the utility model: the turning unit includes a spiral turning sheet structure;

[0015] The spiral material turning sheet structure is provided with multiple groups, each group of the spiral material turning sheet structure includes multiple spiral material turning sheets, and the multiple groups of the spiral material turning sheet structure are evenly distributed along the straight line track of the drying cylinder;

[0016] The plurality of spiral turning pieces in each group of the spiral turning piece structure are evenly fixed on the inner side of the drying cylinder in a ring shape. The rotation of the drying cylinder drives the spiral turning pieces to turn over, and the spiral turning pieces drive the quartz stone inside the drying cylinder to turn over.

[0017] As a further solution of the utility model: the flow blocking unit includes a flow blocking ring and an inclined spacer;

[0018] The blocking ring is fixed inside the drying cylinder and located between two groups of adjacent spiral turning pieces. The blocking ring is used to divide the inner cavity of the drying cylinder into multiple spaces, and the blocking ring is used to block the flow of quartz sand at the bottom of the inner wall of the drying cylinder.

[0019] The inclined spacer is fixed to the outer wall side of the spiral turning piece, and a plurality of inclined spacers are evenly arranged along the spiral trajectory on a single spiral turning piece. The inclined spacer is used to separate the quartz sand driven by the spiral turning piece and to control the forward moving distance of the quartz sand during a single turning process.

[0020] As a further solution of the utility model: the guide unit includes a spiral guide vane;

[0021] The spiral guide plate is fixed on the inner side of the baffle ring and protrudes to both ends of the baffle ring. The spiral guide plate is attached to one end of the spiral flipping plate, and the spiral guide plate is located at the rear end of the spiral flipping plate in the rotation direction. The spiral guide plate is used to guide the quartz sand sliding down from the tail end of the spiral flipping plate to the other end of the baffle ring, so that the quartz sand passes through the area where the baffle ring is located.

[0022] As a further solution of the utility model: one side of the spiral guide plate is formed with a folded edge for limiting the quartz stone, and the inclined partition is located at the front end of the rotation direction of the spiral turning piece.

[0023] As a further solution of the utility model: the drum dryer also includes a base, a driving roller, a fixed guide ring, and a driving motor;

[0024] The driving roller is fixed to the top of the base, the fixed guide ring is fixed to the outside of the drying cylinder, the drying cylinder is rotatably connected to the top of the driving roller through the fixed guide ring, the driving motor is installed on the top of the base and the output end is fixedly connected to the driving roller shaft.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] By setting the baffle ring and the inclined spacer, the moving speed of the quartz sand in the drying cylinder can be limited, so that the moving time of the quartz sand in the drying cylinder is increased, thereby increasing the heating and drying time of the quartz sand. In this way, when the length of the drying cylinder is shorter than that of the traditional drying cylinder, the drying effect of the quartz sand can be guaranteed. By shortening the drying cylinder, the space of the entire device can be reduced, which is convenient for better transfer and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a structural cross-sectional view of the drying drum of the utility model;

[0029] Figure 3 It is a schematic diagram of the structure of some parts of the material turning component of the utility model.

[0030] In the figure: 1. drum dryer; 101. base; 102. driving roller; 103. drying cylinder; 104. fixed guide ring; 105. driving motor; 2. material turning assembly; 201. spiral material turning piece; 202. baffle ring piece; 203. inclined spacer; 204. spiral guide piece. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figures 1 to 3 In the embodiment of the utility model, a high-purity quartz sand drying device includes a drum dryer 1 having a drying cylinder 103, and a turning component 2 is arranged inside the drying cylinder 103, and the turning component 2 is used to turn and transport the quartz sand inside the drying cylinder 103;

[0033] The turning component 2 includes a turning unit, a flow blocking unit, and a flow guiding unit. The turning unit is used to turn over the quartz sand inside the drying cylinder 103. The flow blocking unit is used to block the flow of the quartz sand inside the drying cylinder 103 to slow down the flow of the quartz sand. The flow guiding unit is used to cooperate with the turning unit to make the quartz sand pass through the flow blocking unit and move forward, thereby ensuring the normal transportation of the quartz sand.

[0034] The turning unit includes a spiral turning sheet structure, and the spiral turning sheet structure is provided with multiple groups, each group of the spiral turning sheet structure includes multiple spiral turning sheets 201, and the multiple groups of spiral turning sheet structures are evenly distributed along the straight track of the drying cylinder 103. The multiple spiral turning sheets 201 in each group of the spiral turning sheet structure are evenly fixed on the inner side of the drying cylinder 103 in an annular shape. The rotation of the drying cylinder 103 drives the spiral turning sheet 201 to turn over, and the spiral turning sheet 201 drives the quartz stone inside the drying cylinder 103 to perform a turning operation;

[0035] The flow blocking unit includes a flow blocking ring piece 202 and an inclined spacer 203. The flow blocking ring piece 202 is fixed inside the drying cylinder 103 and is located between two groups of adjacent spiral turning pieces 201. The flow blocking ring piece 202 is used to divide the inner cavity of the drying cylinder 103 into multiple spaces. The flow blocking ring piece 202 is used to block the flow of quartz sand at the bottom of the inner wall of the drying cylinder 103. The inclined spacer 203 is fixed to the outer wall side of the spiral turning piece 201, and a plurality of inclined spacers 203 are evenly arranged along the spiral trajectory on a single spiral turning piece 201. The inclined spacer 203 is used to separate the quartz sand driven by the spiral turning piece 201, and is used to control the forward moving distance of the quartz sand during a single turning process.

[0036] The guide unit includes a spiral guide piece 204, which is fixed to the inner side of the baffle ring 202 and protrudes to both ends of the baffle ring 202. The spiral guide piece 204 is attached to one end of the spiral flipping piece 201, and the spiral guide piece 204 is located at the rear end of the spiral flipping piece 201 in the rotation direction. The spiral guide piece 204 is used to guide the quartz sand sliding down from the rear end of the spiral flipping piece 201 to the other end of the baffle ring 202, so that the quartz sand passes through the area where the baffle ring 202 is located;

[0037] The drum dryer 1 also includes a base 101, a driving roller 102, a fixed guide ring 104, and a driving motor 105;

[0038] The driving roller 102 is fixed to the top of the base 101, the fixed guide ring 104 is fixed to the outside of the drying cylinder 103, the drying cylinder 103 is rotatably connected to the top of the driving roller 102 through the fixed guide ring 104, and the driving motor 105 is installed on the top of the base 101 and the output end is fixedly connected to the rotating shaft of the driving roller 102.

[0039] In this embodiment: It should be supplemented that: when the drum dryer 1 is actually used, the whole is slightly tilted and placed on the ground. A feeding hopper and a heat source device are respectively provided at both ends. The quartz sand raw material is transported to the inside of the drying cylinder 103 through the feeding hopper. The heat source device is used to provide hot air to the inside of the drying cylinder 103. The heat source device is located at the discharge end of the drying cylinder 103. The hot air flows in the direction of the feed end of the drying cylinder 103. A group of spiral turning pieces 201 near the feed end of the drying cylinder 103 are not provided with a baffle ring 202, and a group of spiral turning pieces 201 near the discharge end of the drying cylinder 103 are provided with a baffle ring 202 (see Figure 2 );

[0040] When drying the quartz sand, the external heat source device and the driving motor 105 are first started, and the driving motor 105 drives the fixed guide ring 104 and the drying cylinder 103 to rotate through the driving roller 102, and the external heat source device preheats the drying cylinder 103;

[0041] After the drying cylinder 103 is preheated, the quartz sand is transported to the feeding hopper through an external conveying device, and then introduced into the drying cylinder 103 through the feeding hopper. When the quartz sand contacts the flipping spiral sheet 201, the spiral sheet 201 will synchronously drive the quartz sand to flip. When the quartz sand moves to a high place, it will slide down from the spiral sheet 201 under the action of its own gravity. In this way, the quartz sand can be fully contacted and dried with hot air.

[0042] At the same time, when the quartz sand contacts the baffle ring 202, it cannot move forward. At this time, the quartz sand can only wait for the next spiral flip plate 201 to rotate. When the spiral flip plate 201 rotates to the bottom and contacts the quartz sand, it can drive the quartz sand to flip upward. When the quartz sand reaches a high place, the quartz sand slides from the spiral flip plate 201 and falls onto the spiral guide plate 204, and slides along the track of the spiral guide plate 204 to the other end of the baffle ring 202, so that the quartz sand passes through the baffle ring 202. This reciprocating process can realize the movement of the quartz sand toward the discharge port of the drying cylinder 103.

[0043] By cooperating with the above-mentioned multiple parts, the moving speed of the quartz sand inside the drying cylinder 103 can be limited, thereby increasing the moving time of the quartz sand in the drying cylinder 103, thereby increasing the heating and drying time of the quartz sand. In this way, when the length of the drying cylinder 103 is shorter than that of the traditional drying cylinder, the drying effect of the quartz sand can be guaranteed. By shortening the drying cylinder 103, the space of the entire device can be reduced, which is convenient for better transfer and installation.

[0044] Please refer to Figures 1 to 3 A folded edge is formed on one side of the spiral guide piece 204 for limiting the position of the quartz stone, and the inclined spacer 203 is located at the front end of the rotation direction of the spiral turning piece 201.

[0045] In this embodiment, the folded edge of the spiral guide plate 204 allows the quartz sand to smoothly pass through the baffle ring plate 202, thereby ensuring the normal transportation of the quartz sand.

[0046] By setting the inclined spacer 203, the quartz sand driven by the spiral turning piece 201 is blocked by the inclined spacer 203 when sliding on the surface of the spiral turning piece 201, and will not move too long a distance at a time. In this way, the quartz sand can be driven and turned between the two resistance rings 202 for many times, thereby ensuring sufficient contact between the quartz sand and the hot air.

[0047] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-purity quartz sand drying device, comprising a drum dryer (1) having a drying cylinder (103), characterized in that: A material turning assembly (2) is arranged on the inner side of the drying cylinder (103), and the material turning assembly (2) is used to turn over and transport the quartz sand inside the drying cylinder (103); The material turning component (2) comprises a turning unit, a flow blocking unit and a flow guiding unit; The turning unit is used to turn over the quartz sand inside the drying cylinder (103); The flow blocking unit is used to block the flow of quartz sand inside the drying cylinder (103), thereby slowing down the flow of the quartz sand; The flow guiding unit is used to cooperate with the turning unit to make the quartz sand pass through the flow blocking unit and move forward, so as to ensure the normal transportation of the quartz sand; The turning unit comprises a spiral turning sheet structure; The spiral material turning sheet structures are provided in a plurality of groups, each group of the spiral material turning sheet structures includes a plurality of spiral material turning sheets (201), and the plurality of groups of the spiral material turning sheet structures are evenly distributed along the straight line trajectory of the drying cylinder (103); The plurality of spiral turning pieces (201) in each group of the spiral turning piece structure are evenly fixed on the inner side of the drying cylinder (103) in a ring shape, and the rotation of the drying cylinder (103) drives the spiral turning pieces (201) to turn over, and the spiral turning pieces (201) drive the quartz stone inside the drying cylinder (103) to turn over; The flow blocking unit comprises a flow blocking ring (202) and an inclined spacer (203); The flow-blocking ring piece (202) is fixed inside the drying cylinder (103) and is located between two groups of adjacent spiral turning pieces (201). The flow-blocking ring piece (202) is used to divide the inner cavity of the drying cylinder (103) into multiple spaces, and the flow-blocking ring piece (202) is used to block the flow of quartz sand at the bottom of the inner wall of the drying cylinder (103); The inclined spacer (203) is fixed to the outer wall side of the spiral turning piece (201), and a plurality of inclined spacers (203) are evenly arranged along the spiral track on a single spiral turning piece (201). The inclined spacer (203) is used to separate the quartz sand driven by the spiral turning piece (201) and to control the forward moving distance of the quartz sand during a single turning process.

2. A high-purity quartz sand drying device according to claim 1, characterized in that: The guide unit comprises a spiral guide plate (204); The spiral guide plate (204) is fixed to the inner side of the baffle ring (202) and protrudes to both ends of the baffle ring (202). The spiral guide plate (204) is fitted to one end of the spiral flipping plate (201), and the spiral guide plate (204) is located at the rear end of the spiral flipping plate (201) in the rotation direction. The spiral guide plate (204) is used to guide the quartz sand sliding down from the rear end of the spiral flipping plate (201) to the other end of the baffle ring (202), so that the quartz sand passes through the area where the baffle ring (202) is located.

3. A high-purity quartz sand drying device according to claim 2, characterized in that: One side of the spiral guide plate (204) is formed with a folded edge for limiting the position of the quartz stone, and the inclined spacer (203) is located at the front end of the spiral turning plate (201) in the rotation direction.

4. A high-purity quartz sand drying device according to claim 1, characterized in that: The drum drying machine (1) further comprises a base (101), a driving roller (102), a fixed guide ring (104), and a driving motor (105); The driving roller (102) is fixed to the top of the base (101), the fixed guide ring (104) is fixed to the outside of the drying cylinder (103), the drying cylinder (103) is rotatably connected to the top of the driving roller (102) via the fixed guide ring (104), and the driving motor (105) is installed on the top of the base (101) and the output end is fixedly connected to the rotating shaft of the driving roller (102).

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