Full-automatic drying device for quartz sand

Abstract

The utility model discloses a full-automatic drying device for quartz sand, which comprises a support, a first barrel arranged on the support, a first end cover arranged at the rear end of the first barrel for sealing, a second barrel arranged in the first barrel, a spiral boss arranged in the second barrel, and a plurality of through holes formed in the side wall of the rear end of the second barrel. Spiral blades are arranged on the outer wall of the second barrel, an annular sealing plate is arranged at the front end of the first barrel, the outer wall of the second barrel is sleeved with the annular sealing plate, the annular sealing plate is fixedly connected with the inner wall of the first barrel, a heat conduction pipe is arranged on the outer side wall of the annular sealing plate, a combustor used for spraying high-temperature gas into the heat conduction pipe is arranged on the heat conduction pipe, and mounting holes are formed in the heat conduction pipe. A feeding bent pipe penetrates through the mounting hole, the upper end of the feeding bent pipe is connected with a hopper, the lower end of the feeding bent pipe extends into the second barrel for feeding, a discharging opening is formed in the bottom of the front end of the first barrel and connected with a discharging pipe, and a driving mechanism used for driving the second barrel to rotate is arranged on the support. The drying device is high in drying efficiency, high in heat energy utilization rate and small in occupied space.

Description

TECHNICAL FIELD

[0001] The utility model relates to quartz sand production equipment technical field especially relates to a full -automatic drying device for quartz sand. BACKGROUND

[0002] Quartz sand is a kind of non-metallic mineral substance, is a kind of hard, wear-resistant, chemical property stable silicate mineral, the color of quartz sand is milk white or colorless translucent, mohs hardness, quartz sand is important industrial mineral raw material, non-chemical dangerous goods, the current mainstream high-purity quartz sand adopts natural crystal stone, silica, quartzite, after careful selection, fine processing and become a kind of stone, widely used in glass, casting, ceramics and fireproof material, smelting ferrosilicon, metallurgical flux, metallurgy, building, chemical industry, plastics, rubber, abrasive, filter material and other industries, can also be used as water treatment filter material, or as the embryo material and axle material of ceramic and refractory material porcelain. High-purity quartz sand production process is beneficiation, crushing, screening, washing, grinding, impurity removal, drying and packaging.

[0003] At present, the common drying equipment of quartz sand production has horizontal and vertical rotary cylinder drying, rotary cylinder drying adopts slightly inclined and can rotate cylinder, material moves from higher end to lower end under the action of gravity by means of slow rotation of cylinder, thereby effectively contacts drying through hot air or heating wall surface in cylinder, however, the contact time of hot air and quartz sand of rotary cylinder drying system is short, heat utilization rate is low, energy waste is serious, and the land area is large. UTILITARIAN CONTENT

[0004] The utility model provides a kind of full -automatic drying device for quartz sand, solve the problem that the heat utilization rate of traditional quartz sand rotary cylinder drying equipment is low, energy waste is serious, and the land area is large.

[0005] The utility model provides a full -automatic drying device for quartz sand, including support, first cylinder is arranged on the support, first cylinder rear end sets up first end cover and is closed, the coaxial second cylinder that sets up can rotate with first cylinder in first cylinder, spiral boss that is used for driving material to move to its rear end is arranged to the second cylinder inner wall, a plurality of through -holes for the material in the second cylinder is arranged to the second cylinder rear end side wall and is arranged in first cylinder, the second cylinder front end is open, and the rear end is closed through setting second end cover, spiral blade that is used for conveying the material in first cylinder from back to front is arranged to the outer wall of second cylinder, the first cylinder front end sets up ring seal plate, the ring seal plate is set on the outer wall of second cylinder and is fixedly connected with the first cylinder inner wall, the ring seal plate outside wall sets up the heat pipe that is connected with the open end of second cylinder intercommunication, the heat pipe sets up the burner that is used for injecting high temperature gas to its inside on, the mounting hole is set to the heat pipe upper end side wall, the feeding elbow pipe is arranged in the mounting hole, the feeding elbow pipe upper end is connected with hopper, and the lower extreme stretches into second cylinder and feeds, the first cylinder front end bottom sets up the discharge gate, the discharge gate is connected with the discharge pipe, the support sets up the drive mechanism that is used for driving second cylinder rotation.

[0006] Further, the discharge pipe is provided with a discharger.

[0007] Further, the first cylinder front end top is provided with an exhaust port and is connected with an exhaust pipe.

[0008] Further, the drive mechanism comprises a motor, a speed reducer, a connecting shaft and a bearing seat.

[0009] Further, two idler wheel assemblies are arranged on both sides of the second cylinder front end bottom.

[0010] Further, each idler wheel assembly comprises a support, an idler shaft and an idler wheel.

[0011] The utility model provides a full -automatic drying device for quartz sand.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The utility model discloses a heat pipe is with the high temperature high pressure hot air of combustor generation is introduced into the second cylinder, and the inside of second cylinder is heated, and the wet quartz sand is guided into the second cylinder along the feeding elbow pipe through the hopper, and the second cylinder is rotated through the drive mechanism, and the quartz sand in the second cylinder is moved from front to back through the spiral boss, and the heat exchange heating drying is carried out with the inner wall of second cylinder and the internal hot air, and the quartz sand in the first cylinder is stirred and is transported forward through the spiral blade effect, and the heat exchange heating drying is carried out with the inner wall of first cylinder, the outer wall of second cylinder and the hot air flow in the process of conveying, and after completing twice drying, is discharged from the discharge port and is discharged into the discharge pipe, and the contact time of hot air and quartz sand is long in the drying process, and the quartz sand is dried and heated through the second cylinder inner wall and outer wall contact, and the heat utilization rate is higher, and through the return conveying drying, the structure is compact, and the land occupation is little, and the degree of automation of equipment is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment needed to use the drawing briefly introduces, obviously, for the ordinary skilled person in the art, without the premise of creating the labor intensity, still can obtain other drawings according to these drawings.

[0015] Figure 1 The whole structure schematic diagram of a kind of quartz sand full-automatic drying device proposed by the utility model is shown in the figure;

[0016] Figure 2 The partial structure section view schematic diagram of a kind of quartz sand full-automatic drying device proposed by the utility model is shown in the figure;

[0017] Figure 3 The whole structure section view schematic diagram of a kind of quartz sand full-automatic drying device proposed by the utility model is shown in the figure;

[0018] Figure 4 The supporting wheel assembly mounting structure schematic diagram of a kind of quartz sand full-automatic drying device proposed by the utility model is shown in the figure.

[0019] In the figure:

[0020] 1-support;

[0021] 2-first cylinder;21-first end cover;22-ring sealing plate;23-discharge port;24-discharge pipe;25-unloader;26-exhaust pipe;

[0022] 3-second cylinder;30-through hole;31-spiral boss;32-second end cover;33-spiral blade;

[0023] 4-heat pipe;

[0024] 5-combustor;

[0025] 6 - feed bend;

[0026] 7 - hopper;

[0027] 8 - drive mechanism; 81 - motor; 82 - speed reducer; 83 - connecting shaft; 84 - bearing seat;

[0028] 9 - carrier wheel assembly; 91 - support; 92 - carrier wheel shaft; 93 - carrier wheel. DETAILED DESCRIPTION

[0029] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings.

[0030] Example 1:

[0031] Referring to Figures 1-4The utility model provides a full -automatic drying device for quartz sand, including support 1, fixedly installed horizontal first cylinder 2 on support 1, first end cover 21 is closed and sealed to the rear end of first cylinder 2, the coaxial sleeve of first cylinder 2 is set up second cylinder 3 that can rotate relative to first cylinder 2, and the front end of second cylinder 3 is loading end, and the rear end is discharge end, and the inner wall of second cylinder 3 is provided with multiple spiral bosses 31 for driving material to move from front to back, and the rear end side wall of second cylinder 3 is provided with multiple through -holes 30 for the material in second cylinder 3 is discharged into first cylinder 2, and the through -hole 30 is arranged in a circle on the side wall of second cylinder 3 and is linearly arranged in a circle along the axial direction of second cylinder 3, and the front end of second cylinder 3 is set as open, and the rear end is sealed through the setting second end cover 32, and the outer wall of second cylinder 3 is provided with spiral blade 33 for conveying the material in first cylinder 2 from back to front, and the front end of first cylinder 2 is provided with annular sealing plate 22, and annular sealing plate 22 is movably sleeved on the outer wall of second cylinder 3 through the center hole, and the outer edge of annular sealing plate 22 is welded and fixedly connected with the inner wall of first cylinder 2, and the outer lateral wall of annular sealing plate 22 is coaxially provided with heat pipe 4 that is connected with the open end of second cylinder 3, and the heat pipe 4 is provided with burner 5 for injecting high-temperature gas into the inside, and the heat pipe 4 is used to guide the high-temperature and high-pressure hot air generated by burner 5 into second cylinder 3 to dry the quartz sand conveyed in second cylinder 3, and the upper end lateral wall of heat pipe 4 is provided with mounting hole 41 that is through with the inner chamber of heat pipe 4, and feeding elbow pipe 6 is arranged in mounting hole 41, and the lateral wall of feeding elbow pipe 6 is sealingly connected and fixed with mounting hole 41, and the upper end of feeding elbow pipe 6 is connected with hopper 7, and hopper 7 is used to hold wet quartz sand and is fed into second cylinder 3 through feeding elbow pipe 6, and the bottom lateral wall of the front end of first cylinder 2 is provided with discharge port 23, and discharge port 23 is connected with discharge pipe 24, and the quartz sand in first cylinder 2 is conveyed to the front end through spiral blade 33 and is discharged through discharge port 23, and the driving mechanism 8 for driving second cylinder 3 to rotate is arranged on support 1, and the high-temperature and high-pressure hot air generated by burner 5 is guided into second cylinder 3 through heat pipe 4 to heat the inside of second cylinder 3, and wet quartz sand is guided into second cylinder 3 along feeding elbow pipe 6 through hopper 7, and second cylinder 3 is driven to rotate through driving mechanism 8, and the multiple spiral bosses 31 arranged on the inner wall of second cylinder 3 drive the quartz sand in second cylinder 3 to move from front to back, and the quartz sand is heated and dried through heat exchange with the inner wall and the inside hot air of second cylinder 3, and the quartz sand that is dried for the first time is discharged into first cylinder 2 through through -hole 30, and the quartz sand in first cylinder 2 is stirred and conveyed from the rear end to the front through the action of spiral blade 33 on the outer wall of second cylinder 3, and the quartz sand continues to heat and dry through heat exchange with the inner wall of first cylinder 2 and the outer wall of second cylinder 3 and hot air flow in the conveying process, and is discharged into discharge pipe 24 through discharge port 23 after being dried for the second time, and the contact time of hot air and quartz sand is long during the drying process, and the quartz sand is heated and dried through the contact of the inner wall and the outer wall of second cylinder 3, and the heat utilization rate is higher, and the quartz sand is dried through return conveying, and the structure is compact,Small footprint, high degree of automation of equipment.

[0032] In this embodiment, referring to Figure 3 , the discharge pipe 24 is provided with a discharger 25, which is a commercially available device. The discharger 25 prevents the gas inside the second cylinder 3 from being discharged through the discharge pipe 24.

[0033] In this embodiment, referring to Figure 3 , the first cylinder 2 is provided with an exhaust port at the top of the front end and is connected to an exhaust pipe 26. An exhaust gas purifier (not shown in the figure) is installed in the exhaust pipe 26 to prevent environmental pollution.

[0034] In this embodiment, referring to Figure 2 , the drive mechanism 8 includes a motor 81, a speed reducer 82, a connecting shaft 83, and a bearing seat 84. The bearing seat 84 is arranged on the first end cover 21, and the connecting shaft 83 is rotatably arranged on the bearing seat 84. One end of the bearing seat 84 penetrates the first end cover 21 and extends into the first cylinder 2 to be fixedly connected with the second end cover 32. The other end is driven to rotate by the speed reducer 82 and the motor 81 arranged on the support 1. The motor 81 drives the speed reducer 82 to drive the connecting shaft 83 to rotate. The connecting shaft 83 drives the second cylinder 3 to rotate relative to the first cylinder 2, so that the second cylinder 3 can match the stable rotating speed with the drying time, ensuring uniform drying of the quartz sand.

[0035] In this embodiment, referring to Figure 4 , two idler wheel assemblies 9 are arranged on both sides of the bottom of the front end of the second cylinder 3. Each idler wheel assembly 9 includes a support 91, an idler shaft 92, and an idler wheel 93. The support 91 is arranged on the inner wall of the first cylinder 2. The idler shaft 92 is fixedly arranged on the support 91 at both ends. The idler wheel 93 is rotatably arranged on the idler shaft 92. The first cylinder 2 is rotatably supported at one end by the two idler wheel assemblies 9, and the other end is rotatably supported by the connecting shaft 83, thereby reducing the rotating resistance and energy consumption.

[0036] In this embodiment, the burner 5 is a commercially available device, which includes a combustion furnace and a fan. The fan of the burner 5 is controlled by a frequency converter through a controller to control the flow rate and flow velocity of the hot air supplied into the heat conducting pipe 4.

[0037] From the above technical scheme can know, in use, the controller controls the burner 5 work, the high temperature and high pressure hot air generated by the burner 5 is introduced into the second cylinder body 3 through the heat pipe 4, the second cylinder body 3, the first cylinder body 2 inside is heated, when the temperature sensor installed in the first cylinder body 2 measures that its inside reaches the drying specified temperature, the wet quartz sand is introduced into the second cylinder body 3 along the feeding elbow pipe 6 by the hopper 7, the second cylinder body 3 is driven to rotate by the driving mechanism 8, the multiple spiral bosses 31 arranged on the inner wall of the second cylinder body 3 drive the quartz sand in the second cylinder body 3 to move from front to back, and the quartz sand is heated and dried by the heat exchange with the inner wall and the internal hot air of the second cylinder body 3, the quartz sand that completes the first drying is discharged into the first cylinder body 2 through the through hole 30, the spiral blade 33 on the outer wall of the second cylinder body 3 acts on the quartz sand in the first cylinder body 2, and the quartz sand is stirred and conveyed from the rear end of the first cylinder body 2 to the front, continues to exchange heat with the inner wall of the first cylinder body 2 and the outer wall of the second cylinder body 3 and the hot air flow in the conveying process, and is heated and dried, and is discharged from the discharge port 23 into the discharge pipe 24 after completing the second drying, and the quartz sand in the discharge pipe 24 is discharged by the unloader 25, and the gas in the first cylinder body 2 and the second cylinder body 3 is discharged through the exhaust pipe 26.

[0038] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope of the application being indicated by the following claims.

[0039] It should be understood that the present application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The embodiments described above are meant to be exemplary only, and the true scope of the present application is indicated by the following claims.

Claims

1. A fully automatic drying device for quartz sand, characterized in that: The application relates to a material conveying device, which comprises a support (1), a first cylinder (2) arranged on the support (1), a first end cover (21) arranged at the rear end of the first cylinder (2), a second cylinder (3) coaxially arranged in the first cylinder (2) and capable of rotating relative to the first cylinder (2), a helical boss (31) arranged on the inner wall of the second cylinder (3) and used for driving material to move to the rear end of the second cylinder (3), a plurality of through holes (30) arranged on the side wall of the rear end of the second cylinder (3) and used for discharging the material in the second cylinder (3) into the first cylinder (2), an open front end of the second cylinder (3), a second end cover (32) arranged at the rear end of the second cylinder (3), helical blades (33) arranged on the outer wall of the second cylinder (3) and used for conveying the material in the first cylinder (2) from the rear to the front, a ring-shaped sealing plate (22) arranged at the front end of the first cylinder (2), the ring-shaped sealing plate (22) being sleeved on the outer wall of the second cylinder (3) and fixedly connected with the inner wall of the first cylinder (2), a heat-conducting pipe (4) arranged on the outer side wall of the ring-shaped sealing plate (22) and connected with the open end of the second cylinder (3), a burner (5) arranged on the heat-conducting pipe (4) and used for spraying high-temperature gas into the heat-conducting pipe (4), a mounting hole (41) arranged on the upper end side wall of the heat-conducting pipe (4), a feeding elbow pipe (6) arranged in the mounting hole (41), a hopper (7) connected with the upper end of the feeding elbow pipe (6) and used for feeding material into the second cylinder (3), a discharging port (23) arranged at the bottom of the front end of the first cylinder (2), a discharging pipe (24) connected with the discharging port (23), and a driving mechanism (8) arranged on the support (1) and used for driving the second cylinder (3) to rotate.

2. The full-automatic drying device for quartz sand according to claim 1, characterized in that, A discharger (25) is arranged on the discharging pipe (24).

3. The full-automatic drying device for quartz sand according to claim 1, characterized in that, An exhaust port is arranged at the top of the front end of the first cylinder (2) and connected with an exhaust pipe (26).

4. The full-automatic drying device for quartz sand according to claim 1, characterized in that, The driving mechanism (8) comprises a motor (81), a speed reducer (82), a connecting shaft (83) and a bearing seat (84), the bearing seat (84) is arranged on the first end cover (21), the connecting shaft (83) is rotatably arranged on the bearing seat (84), one end of the bearing seat (84) penetrates through the first end cover (21) and extends into the first cylinder (2) and is fixedly connected with the second end cover (32), and the other end is driven to rotate by the motor (81) and the speed reducer (82) arranged on the support (1).

5. The full-automatic drying device for quartz sand according to claim 1, characterized in that, Two supporting wheel assemblies (9) are arranged at the bottom of the front end of the second cylinder (3) on both sides.

6. The full-automatic drying device for quartz sand according to claim 5, characterized in that, Each supporting wheel assembly (9) comprises a support (91), a supporting wheel shaft (92) and a supporting wheel (93), the support (91) is arranged on the inner wall of the first cylinder (2), the supporting wheel shaft (92) is fixedly arranged on the support (91) at both ends, and the supporting wheel (93) is rotatably arranged on the supporting wheel shaft (92).

Images