Quartz sand drying device

Abstract

The utility model discloses a quartz sand drying device which comprises a drying box body, a hot air generator, a spiral conveyor, a material lifting mechanism, a three-way blanking pipe, a three-way reversing valve and a discharging pipe, a plurality of layers of blanking buffering frames are arranged in the drying box body in the vertical direction, each blanking buffering frame comprises a connecting plate and a conical plate, the conical plates are arranged on the connecting plates at intervals, through holes matched with the conical plates in shape are formed in the connecting plates, the hot air generator is arranged on the wall face of the drying box body, and an air outlet of the hot air generator communicates with the through holes. The hot air generator is used for blowing hot air into the drying box. According to the quartz sand drying device, the multiple layers of blanking buffer frames are arranged in the drying box body, quartz sand can be gradually dispersed when falling layer by layer, the conical plates arranged in a staggered mode in the upper and lower layers can scatter quartz sand materials, the distribution uniformity of the materials is improved, meanwhile, the falling speed of the quartz sand is effectively reduced, the contact time of the materials and hot air is prolonged, and the quality of the quartz sand is improved. Therefore, the drying uniformity of the quartz sand is improved.

Description

Technical Field

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

[0002] Quartz sand is an important industrial raw material, widely used in glass manufacturing, casting, ceramics and other industries. During the production and processing of quartz sand, it needs to be dried to remove moisture from the quartz sand material so that the dryness of the product meets the subsequent processing requirements.

[0003] In the prior art, quartz sand is generally dried using a drum dryer. However, the drum dryer has limited ability to stir and disperse the quartz sand. Especially when large quantities of quartz sand need to be dried, hot air is difficult to be evenly blown to each part of the quartz sand material, resulting in uneven heat transfer, which causes some quartz sand to not be fully dried, affecting the drying effect of the quartz sand.

[0004] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a quartz sand drying device which can dry large quantities of quartz sand materials and has good drying effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a quartz sand drying device, including a drying box, a hot air generator, a screw conveyor, a material lifting mechanism, a three-way drop pipe, a three-way reversing valve and a discharge pipe;

[0007] The drying box has a receiving chamber for accommodating quartz sand materials. The receiving chamber is provided with a multi-layer falling buffer rack in the vertical direction. The falling buffer rack is used to slow down the falling speed of the quartz sand materials in the drying box.

[0008] The blanking buffer rack includes a connecting plate and a conical plate. A plurality of the conical plates are spaced apart on the connecting plate. Both ends of the connecting plate are connected to the side walls of the drying box. The bottom of the conical plate has an opening, and the connecting plate is provided with a through hole that matches the shape of the conical plate.

[0009] A plurality of groups of hot air generators are arranged on the wall of the drying box, the air outlets of the hot air generators are connected to the through holes, and the hot air generators are used to blow hot air into the receiving chamber;

[0010] The screw conveyor is provided at the bottom of the drying box, the material lifting mechanism is provided at the side end of the drying box, the screw conveyor is connected to the bottom of the material lifting mechanism, and the screw conveyor is used to transport the quartz sand at the bottom of the drying box to the material lifting mechanism;

[0011] The top of the material lifting mechanism is connected to the three-way blanking pipe, and the three-way blanking pipe has a first blanking pipe and a second blanking pipe. The first blanking pipe is connected to the top of the drying box, and the second blanking pipe is connected to the discharge pipe, and the discharge pipe is used to discharge the dried quartz sand;

[0012] The three-way reversing valve is arranged in the three-way blanking pipe, and the three-way reversing valve is used to switch the blanking direction of the quartz sand.

[0013] By adopting the above technical solution, in the quartz sand drying device, the conical plates of the two adjacent upper and lower layers are staggered.

[0014] Using the above technical solution, in the quartz sand drying device, the hot air generator includes a blower, a heating tube and an air supply hood, the air supply hood is arranged on the side wall of the drying box, the air outlet of the blower is connected to the air supply hood, the heating tube is arranged on the side wall of the air supply hood, and the blower is used to blow the heat generated by the heating tube to the through hole.

[0015] According to the above technical solution, in the quartz sand drying device, an exhaust port is provided on the side wall of the drying box located on the back of the hot air generator, and a heat exchanger is provided on the exhaust port, which is used to cool the hot air flow discharged from the drying box.

[0016] Using the above technical solution, in the quartz sand drying device, a guardrail platform is provided on the outside of the hot air generator, and a cage ladder is provided on the side wall of the drying box, and the cage ladder is located at the side end of the guardrail platform. The cage ladder is used for the operator to climb to the guardrail platform or the top of the drying box.

[0017] According to the above technical solution, in the quartz sand drying device, the number of the hot air generators is three.

[0018] By adopting the above technical solution, in the quartz sand drying device, the blanking buffer rack is made of stainless steel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model arranges multiple layers of blanking buffer racks in the drying box body, so that the quartz sand can be gradually dispersed when it falls layer by layer, and the conical plates staggered in the upper and lower layers can break up the quartz sand material, thereby improving the distribution uniformity of the material and effectively delaying the falling speed of the quartz sand, increasing the contact time between the material and the hot air, thereby improving the drying uniformity of the quartz sand; the screw conveyor can transport the quartz sand at the bottom of the drying box body to the material lifting mechanism, and transport the quartz sand back into the drying box body through the three-way blanking pipe, so as to realize multiple drying of the quartz sand, thereby improving the drying effect of the quartz sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall back structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the installation structure of the blanking buffer rack of the present utility model;

[0026] Figure 4 This is a schematic structural diagram of the hot air generator of the present utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0030] like Figures 1 to 4 As shown, the embodiment of the utility model provides a quartz sand drying device, including a drying box 1, a hot air generator 2, a screw conveyor 3, a material lifting mechanism 4, a three-way drop pipe 5, a three-way reversing valve and a discharge pipe 6;

[0031] like Figure 3 As shown, the interior of the drying box 1 has a receiving chamber 10 for accommodating quartz sand materials, and the receiving chamber 10 is provided with a multi-layer blanking buffer rack 11 in the vertical direction. The blanking buffer rack 11 is made of stainless steel. The blanking buffer rack 11 is used to slow down the falling speed of the quartz sand material in the drying box 1. The blanking buffer rack 11 includes a connecting plate 111 and a conical plate 112. A plurality of the conical plates 112 are spaced apart on the connecting plate 111. Both ends of the connecting plate 111 are connected to the side wall of the drying box 1. The bottom of the conical plate 112 is connected to the side wall of the drying box 1. The connecting plate 111 has an opening, and a through hole 110 is provided on the connecting plate 111, which is adapted to the shape of the conical plate 112; a multi-layer falling buffer rack 11 is provided in the drying box 1, and the quartz sand material falls layer by layer under the action of gravity, and the conical plate 112 of each layer can buffer and disperse the quartz sand material, thereby slowing down the falling speed of the quartz sand material; in this embodiment, the conical plates 112 of the upper and lower adjacent layers are staggered. Such a setting can make the quartz sand be re-broken when each layer falls, avoiding the aggregation of the quartz sand material, thereby improving the drying effect of the quartz sand.

[0032] like Figure 1 and Figure 3As shown, multiple groups of hot air generators 2 are arranged on the wall of the drying box 1, and the air outlets of the hot air generators 2 are connected to the through holes 110. The hot air generators 2 are used to blow hot air into the receiving chamber 10. The hot air generators 2 can generate hot air, which enters the receiving chamber 10 through the through holes 110 and directly contacts the quartz sand material, thereby drying the quartz sand. In this embodiment, the number of hot air generators 2 is three. This arrangement allows hot air to enter the receiving chamber 10 from multiple locations of the drying box 1, forming an effective hot air circulation flow, avoiding hot air dead corners, and thus improving the drying effect of the quartz sand.

[0033] like Figure 1 and Figure 2 As shown, the screw conveyor 3 is arranged at the bottom of the drying box 1, and the material lifting mechanism 4 is arranged at the side end of the drying box 1. The screw conveyor 3 is connected to the bottom of the material lifting mechanism 4. The screw conveyor 3 is used to transport the quartz sand at the bottom of the drying box 1 to the material lifting mechanism 4. The top of the material lifting mechanism 4 is connected to the three-way blanking pipe 5. The three-way blanking pipe 5 has a first blanking pipe 51 and a second blanking pipe 52. The first blanking pipe 51 is connected to the top of the drying box 1, and the second blanking pipe 52 is connected to the discharge pipe 6. The discharge pipe 6 is used to discharge the dried quartz sand. The three-way reversing valve is arranged in the three-way blanking pipe 5. The three-way reversing valve is used to switch the blanking direction of the quartz sand. The setting of the screw conveyor 3 can transport the quartz sand at the bottom of the drying box 1 to the material lifting mechanism 4. After being lifted by the material lifting mechanism 4, the quartz sand is transported back to the drying box 1 through the three-way drop pipe 5, thereby realizing the circulation drying of the quartz sand material. When the dryness of the quartz sand meets the requirements, the three-way reversing valve can switch the drop direction of the three-way drop pipe 5, so that the quartz sand that has completed the drying process is transported to the discharge pipe 6 through the second drop pipe 52 for discharge. It should be noted that the three-way reversing valve is a publicly available prior art, and this embodiment will not elaborate on the specific structure and working principle of the three-way reversing valve.

[0034] like Figure 4 As shown, the hot air generator 2 further includes a blower 21, a heating pipe 22, and an air supply hood 23. The air supply hood 23 is provided on the side wall of the drying box 1. The air outlet of the blower 21 is connected to the air supply hood 23. The heating pipe 22 is provided on the side wall of the air supply hood 23. The blower 21 is used to blow the heat generated by the heating pipe 22 to the through hole 110. The heating pipe 22 can adjust the heat output according to the power demand. In conjunction with the air volume adjustment of the blower 21, the hot air temperature can be precisely controlled to meet the drying requirements of quartz sand of different sizes.

[0035] like Figure 2 As shown, further, an exhaust port is provided on the side wall of the drying box 1 located on the back of the hot air generator 2, and a heat exchanger 7 is provided on the exhaust port. The heat exchanger 7 is used to cool the hot air flow discharged from the drying box 1 to avoid direct discharge of high-temperature gas into the environment, reduce thermal pollution to the surrounding environment, and improve the environmental comfort inside the factory; and, by arranging the heat exchanger 7 on the exhaust port, the heat in the drying hot air can be recovered and reused in other heating systems, reducing the demand for external heating sources, thereby reducing the overall energy consumption of factory equipment.

[0036] like Figure 1 As shown, a guardrail platform 12 is provided on the outside of the hot air generator 2, and a cage ladder 13 is provided on the side wall of the drying box 1. The cage ladder 13 is located at the side end of the guardrail platform 12. The cage ladder 13 is used for operators to climb to the guardrail platform 12 or the top of the drying box 1. The provision of the guardrail platform 12 and the cage ladder 13 can facilitate maintenance personnel to perform daily inspections and equipment maintenance work.

[0037] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quartz sand drying device, characterized in that, It includes a drying box, a hot air generator, a screw conveyor, a material lifting mechanism, a three-way drop pipe, a three-way reversing valve and a discharge pipe; The drying box has a receiving chamber for accommodating quartz sand materials. The receiving chamber is provided with a multi-layer falling buffer rack in the vertical direction. The falling buffer rack is used to slow down the falling speed of the quartz sand materials in the drying box. The blanking buffer rack includes a connecting plate and a conical plate. A plurality of the conical plates are spaced apart on the connecting plate. Both ends of the connecting plate are connected to the side walls of the drying box. The bottom of the conical plate has an opening, and the connecting plate is provided with a through hole that matches the shape of the conical plate. A plurality of groups of hot air generators are arranged on the wall of the drying box, the air outlets of the hot air generators are connected to the through holes, and the hot air generators are used to blow hot air into the receiving chamber; The screw conveyor is provided at the bottom of the drying box, the material lifting mechanism is provided at the side end of the drying box, the screw conveyor is connected to the bottom of the material lifting mechanism, and the screw conveyor is used to transport the quartz sand at the bottom of the drying box to the material lifting mechanism; The top of the material lifting mechanism is connected to the three-way blanking pipe, and the three-way blanking pipe has a first blanking pipe and a second blanking pipe. The first blanking pipe is connected to the top of the drying box, and the second blanking pipe is connected to the discharge pipe, and the discharge pipe is used to discharge the dried quartz sand; The three-way reversing valve is arranged in the three-way blanking pipe, and the three-way reversing valve is used to switch the blanking direction of the quartz sand.

2. The quartz sand drying device according to claim 1, characterized in that The conical plates of the two adjacent upper and lower layers are staggered.

3. The quartz sand drying device according to claim 1, characterized in that: The hot air generator includes a blower, a heating pipe and an air supply hood. The air supply hood is arranged on the side wall of the drying box body. The air outlet of the blower is connected to the air supply hood. The heating pipe is arranged on the side wall of the air supply hood. The blower is used to blow the heat generated by the heating pipe to the through hole.

4. The quartz sand drying device according to claim 1, characterized in that: An exhaust port is provided on the side wall of the drying box body at the back of the hot air generator, and a heat exchanger is provided on the exhaust port. The heat exchanger is used to cool the hot air flow discharged from the drying box body.

5. The quartz sand drying device according to claim 3, characterized in that: A guardrail platform is provided on the outside of the hot air generator, and a cage ladder is provided on the side wall of the drying box, and the cage ladder is located at the side end of the guardrail platform. The cage ladder is used for operators to climb to the guardrail platform or the top of the drying box.

6. The quartz sand drying device according to claim 3, characterized in that: The number of the hot air generators is three.

7. The quartz sand drying device according to claim 1, characterized in that: The blanking buffer rack is made of stainless steel.

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