Automatic discharging type mixing device for precoated sand

Abstract

The utility model relates to the technical field of precoated sand processing, and discloses a precoated sand automatic discharging type mixing device which comprises a hollow cylinder, the top of a conical cover is fixedly connected with a hollow box, the left side of the hollow box is fixedly connected with a motor, and the output end of the motor penetrates through the hollow box and is fixedly connected with a driving bevel gear. A rotating rod is rotationally connected to the middle of the bottom end of the inner side of the hollow box, a driven bevel gear is fixedly connected to the top end of the rotating rod, the driven bevel gear is in meshed connection with the driving bevel gear, and the bottom end of the rotating rod sequentially penetrates through the hollow box and the conical cover. According to the quartz sand mixing device disclosed by the utility model, the rotating rod can drive the plurality of stirring blades and the first gear to rotate, the first gear can drive the second gear meshed with the first gear to rotate, and the annular rack meshed with the second gear can drive the stirring rod to rotate, so that quartz sand and a coating material can be fully mixed through double stirring of the stirring blades and the stirring rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coated sand processing, especially to a coated sand automatic discharge type mixing device. BACKGROUND

[0002] Coated sand is a kind of petroleum fracturing proppant, and the sand grains on the surface of the sand before molding and core making have been covered with a layer of solid resin film, which is also called shell sand. It is mainly made of high-quality selected natural quartz sand as raw sand, supplemented by thermoplastic phenolic resin, urotropine and reinforcing agent. Coated sand has high strength and anti-crushing property, so it can withstand greater pressure and friction, meeting the requirements of petroleum fracturing proppant for compressive strength and wear resistance, and its flow conductivity is stronger than that of ordinary quartz sand, which helps to improve oil and gas production.

[0003] After searching, the patent announcement number CN214810437U discloses a ceramsite coated sand automatic discharge type mixing device. The device includes a mixing cylinder, a stirring blade rotating motor, and a stirring blade. The stirring blade rotating motor is fixed on the top cover plate of the mixing cylinder, and the stirring blade is fixed on the output shaft of the stirring blade rotating motor. The bottom of the mixing cylinder is provided with a discharge port, and the discharge port is fixed with a discharge cylinder. Two parallel racks are arranged below the discharge cylinder, and the two racks are respectively engaged with two gears. One gear is rotatably connected to one side of the carriage, and the other gear is fixed on the rotating part of the rotating mechanism. The utility model stirs the materials in the mixing cylinder through the stirring blade. The materials enter the lifting cylinder through the inclined slide. The carriage is moved by the cooperation of the rotating gear and the rack. The coated sand is stirred in the carriage by the stirring mechanism, and the carriage is opened and closed by the automatic opening and closing door. The application improves the discharge efficiency of the coated sand.

[0004] However, when the device is in use, the quartz sand moves differently in the stirring device due to the use of traditional structure for stirring work. The stirring intensity and the amount of coating material received by the quartz sand near the cylinder wall and the center position are different, it is difficult to ensure that every quartz sand can uniformly contact the coating material, which easily leads to partial quartz sand with too thick coating, partial quartz sand with too thin coating or even incomplete coating, affecting the overall quality and performance of the coated quartz sand, reducing the practicability of the device, and failing to meet the needs of the users. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a coated sand automatic discharge type mixing device, which aims to improve the problem that the coated sand automatic discharge type mixing device in the prior art is prone to uneven mixing when performing coating work.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of automatic discharging type mixing device of coated sand, hollow cylinder is included in the utility model, the upper side of the hollow cylinder is provided with conical cover, the top of the conical cover is fixedly connected with hollow box, the left side of the hollow box is fixedly connected with motor, the output end of the motor is through hollow box and is fixedly connected with driving bevel gear, the inside bottom end middle part of the hollow box is rotatably connected with rotating rod, the top end of the rotating rod is fixedly connected with driven bevel gear, the driven bevel gear is engagedly connected with driving bevel gear, the bottom end of the rotating rod is in turn through hollow box and conical cover, the outside four quarters of the rotating rod are fixedly connected with multiple stirring blades, the inside top front side of the conical cover is rotatably connected with rotating column, the bottom end of the rotating column is fixedly connected with second gear, the outside middle upper portion of the rotating rod is fixedly connected with first gear, the rear side of the second gear is engagedly connected with first gear, the inside top left and right sides of the conical cover are fixedly connected with fixed column, the bottom of two the fixed column is fixedly connected with same hollow ring, the inside of the hollow ring is rotatably connected with annular rack, the inside of the annular rack is engagedly connected with second gear, the bottom left and right sides of the annular rack are fixedly connected with stirring rod, the bottom of the hollow cylinder is fixedly connected with hollow cone, the bottom of the hollow cone is provided with separation mechanism, and the separation mechanism is used to facilitate the separation of debris in quartz sand.

[0007] Through the above technical scheme, the double stirring action of stirring rod and stirring blade makes the quartz sand near the cylinder wall also be fully stirred, ensures that the quartz sand and the coating material can be fully mixed, improves the practicability of the device, and can meet the needs of users.

[0008] As a further description of the above technical scheme:

[0009] The separation mechanism includes a conical filter screen, which is fixedly connected to the inside middle lower part of the hollow cylinder, the bottom of the conical filter screen is communicated with a hollow pipe, the bottom of the hollow cone is communicated with a discharge pipe, the outside middle upper part of the discharge pipe is fixedly connected with a hollow plate, the bottom left side of the hollow plate is fixedly connected with a motor, the output end of the motor is through the hollow plate and is fixedly connected with a worm, the inside left end middle part of the hollow plate is rotatably connected with a transmission rod, the outside of the transmission rod is fixedly connected with a worm wheel, the worm wheel is engagedly connected with the worm, the right end of the transmission rod is in turn through the hollow plate, the discharge pipe and the hollow pipe and is fixedly connected with a valve, the inside middle lower part of the discharge pipe is fixedly connected with an inclined filter screen, and the right middle lower part of the discharge pipe is provided with a discharge port.

[0010] Through the above technical scheme, the debris falls out of the device through the discharge pipe, and the quartz sand after coating is sent out of the device through the discharge port, realizing the separation work of debris and quartz sand, without the need for workers to separate the debris, reducing the work burden of workers.

[0011] As a further description of the above technical solution:

[0012] The top right side of the conical cover is fixedly connected with a material spraying pipe, and the bottom end of the material spraying pipe penetrates through the conical cover and is communicated with a spray head.

[0013] Through the above technical solution, the film coating raw material can be pumped into the device, and the film coating raw material can be sprayed into the device through the spray head.

[0014] As a further description of the above technical solution:

[0015] A plurality of screws are fixedly connected around the top of the conical cover, and the bottom ends of the plurality of screws are all threaded into the same hollow cylinder.

[0016] Through the above technical solution, the conical cover can be disassembled by disassembling the plurality of screws, thereby realizing the maintenance work of the internal equipment of the device.

[0017] As a further description of the above technical solution:

[0018] The top left side of the conical cover is communicated with a feeding port, and the top of the feeding port is threaded with a feeding cover.

[0019] Through the above technical solution, the feeding port can add the uncoated quartz sand raw material into the device, and the feeding cover can realize the closure of the feeding port.

[0020] As a further description of the above technical solution:

[0021] An observation window is formed in the middle upper part of the front side of the hollow cylinder, and a plurality of handles are fixedly connected around the outside of the hollow cylinder.

[0022] Through the above technical solution, the staff can conveniently observe the spraying condition inside the device, and provide certain protection for the staff.

[0023] As a further description of the above technical solution:

[0024] A plurality of support columns are fixedly connected around the bottom of the hollow cone, and the bottom of each of the plurality of support columns is fixedly connected with a gasket.

[0025] Through the above technical solution, the screw can be driven into the gasket to fix the gasket on the ground, so as to fix the device.

[0026] As a further description of the above technical solution:

[0027] A controller is fixedly connected to the middle lower part of the front side of the hollow cylinder, and the controller is electrically connected with the motor and the motor, respectively.

[0028] Through the technical scheme, the controller can control the operation of the motor and the motor respectively.

[0029] The utility model has the following beneficial effects:

[0030] 1、 the utility model discloses, motor drives driving bevel gear rotation, and driven bevel gear meshing with driving bevel gear is driven to rotate with rotation rod, and rotation rod will drive a plurality of stirring vane and first gear rotate, and first gear will drive the rotation of second gear meshing with it, at this moment, annular rack meshing with second gear will drive stirring rod rotation, through the double stirring of stirring vane and stirring rod, make quartz sand and coating material can mix fully, improved the practicability of the device, can satisfy the demand of user.

[0031] 2、 the utility model discloses, and the chippings are moved down through the taper filter screen and enter the gap of taper filter screen and hollow cone, and through the slanting filter screen in the downcomer finally fall out the device from the downcomer, and the meshing of motor through worm and worm wheel can drive transmission rod rotation, at this moment, transmission rod will drive valve open, and quartz sand can enter the downcomer through hollow pipe, and due to the blocking effect of slanting filter screen will enter the discharge gate, can easily separate chippings and quartz sand, reduce the work burden of staff. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a kind of coated sand automatic discharge formula mixing device's perspective view proposed by the utility model;

[0033] Figure 2 It is a kind of coated sand automatic discharge formula mixing device's partial structure sectional view proposed by the utility model;

[0034] Figure 3 It is a kind of coated sand automatic discharge formula mixing device's partial structure schematic view proposed by the utility model;

[0035] Figure 4 It is the structure sectional view of a kind of separating mechanism of coated sand automatic discharge formula mixing device proposed by the utility model;

[0036] Figure 5 It is a kind of coated sand automatic discharge formula mixing device's partial structure exploded view proposed by the utility model.

[0037] LEGEND:

[0038] 1, hollow cylinder; 2, separation mechanism; 201, conical filter screen; 202, hollow tube; 203, blanking tube; 204, hollow plate; 205, motor; 206, worm; 207, transmission rod; 208, worm gear; 209, valve; 210, inclined filter screen; 211, discharge port; 3, conical cover; 4, hollow box; 5, motor; 6, driving bevel gear; 7, rotating rod; 8, driven bevel gear; 9, stirring blade; 10, rotating column; 11, second gear; 12, first gear; 13, fixed column; 14, hollow ring; 15, annular rack; 16, stirring rod; 17, hollow cone; 18, material spraying tube; 19, spray head; 20, screw; 21, feed inlet; 22, feed cover; 23, observation window; 24, handle; 25, support column; 26, gasket; 27, controller. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] Referring to Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: a kind of automatic discharging type mixing device of coated sand, hollow cylinder 1 is included in the utility model, the upside of hollow cylinder 1 is provided with conical cover 3, the top of conical cover 3 is fixedly connected with hollow box 4, the left side of hollow box 4 is fixedly connected with motor 5, the output end of motor 5 penetrates hollow box 4 and is fixedly connected with driving bevel gear 6, the inside bottom end middle part of hollow box 4 is rotatably connected with rotating rod 7, the top of rotating rod 7 is fixedly connected with driven bevel gear 8, driven bevel gear 8 is engagedly connected with driving bevel gear 6, the bottom end of rotating rod 7 penetrates hollow box 4 and conical cover 3 in proper order, the outside four quarters of rotating rod 7 are all fixedly connected with multiple stirring blades 9, the inside top front side of conical cover 3 is rotatably connected with rotating column 10, the bottom end of rotating column 10 is fixedly connected with second gear 11, the outside middle upper portion of rotating rod 7 is fixedly connected with first gear 12, the rear side of second gear 11 is engagedly connected with first gear 12, the inside top left and right sides of conical cover 3 are all fixedly connected with fixed column 13, the bottom of two fixed columns 13 is all fixedly connected with same hollow ring 14, the inside of hollow ring 14 is rotatably connected with annular rack 15, the inside of annular rack 15 is engagedly connected with second gear 11, the bottom left and right sides of annular rack 15 are all fixedly connected with stirring rod 16, the bottom of hollow cylinder 1 is fixedly connected with hollow cone 17, the bottom of hollow cone 17 is provided with separating mechanism 2, separating mechanism 2 is used to separate the debris in quartz sand conveniently, the top left side of conical cover 3 is communicated with feed inlet 21, the top of feed inlet 21 is threadedly connected with feeding cover 22;

[0041] Specifically, in the process of using the device, first open the feeding cover 22 located at the top of the device, then pour the quartz sand into the internal space of the device through the feed inlet 21, and then start the motor 5, which will drive the driving bevel gear 6 to start rotating. Since the driven bevel gear 8 is engaged with the driving bevel gear 6, the driven bevel gear 8 will also start to rotate. With the rotation of the driven bevel gear 8, the rotating rod 7 will be further rotated. In the process of rotating, the rotating rod 7 will also rotate the multiple stirring blades 9 and the first gear 12 on the outside. Since the second gear 11 is also engaged with the first gear 12, the second gear 11 will also start to rotate. When the second gear 11 rotates, it will also drive the annular rack 15 engaged with it to rotate. The annular rack 15 will drive the two stirring rods 16 below it to start rotating when it rotates. The rotation of the stirring rods 16 will effectively stir the quartz sand near the cylinder wall. Through the double stirring action of the stirring blades 9 and the stirring rods 16, the quartz sand and the coated material can be fully mixed, improving the practicability of the device and meeting the needs of the user.

[0042] Reference Figure 2 , Figure 4 and Figure 5The separating mechanism 2 comprises a conical filter screen 201 fixedly connected to the inner middle lower part of the hollow cylinder 1, the bottom of the conical filter screen 201 is communicated with a hollow pipe 202, the bottom of the hollow cone 17 is communicated with a discharging pipe 203, the outer middle upper part of the discharging pipe 203 is fixedly connected with a hollow plate 204, the bottom left side of the hollow plate 204 is fixedly connected with a motor 205, the output end of the motor 205 penetrates through the hollow plate 204 and is fixedly connected with a worm 206, the inner left end middle part of the hollow plate 204 is rotationally connected with a transmission rod 207, the outer side of the transmission rod 207 is fixedly connected with a worm gear 208, the worm gear 208 is meshingly connected with the worm 206, the right end of the transmission rod 207 penetrates through the hollow plate 204, the discharging pipe 203 and the hollow pipe 202 in sequence and is fixedly connected with a valve 209, the inner middle lower part of the discharging pipe 203 is fixedly connected with an inclined filter screen 210, and the right middle lower part of the discharging pipe 203 is provided with a discharging opening 211;

[0043] Specifically, in the process of operating the device, in the stirring process, the quartz sand and the quartz sand will rub against each other to generate debris, and these debris will gradually move downward through the conical filter screen 201 and through the gap between the conical filter screen 201 and the hollow cone 17, and then the debris will enter the gap between the discharging pipe 203 and the hollow pipe 202, and under the further action of gravity, the debris will finally fall out of the device through the inclined filter screen 210, and when the device completes the film coating work, the motor 205 will be started, the start of the motor 205 will drive the rotation of the worm 206, due to the meshing between the worm gear 208 and the worm 206, the worm gear 208 will rotate and drive the transmission rod 207 to rotate, and the transmission rod 207 will drive the valve 209 to rotate when rotating, at this time, the valve 209 will be opened, and the quartz sand can smoothly enter the discharging pipe 203 through the hollow pipe 202, and due to the blocking action of the inclined filter screen 210, the quartz sand will finally enter the discharging opening 211, thereby realizing the effective separation of the quartz sand and the debris by the device, and reducing the work burden of the workers.

[0044] With reference to Figure 1 and Figure 2 , the top right side of the conical cover 3 is fixedly connected with a material spraying pipe 18, the bottom end of the material spraying pipe 18 penetrates through the conical cover 3 and is communicated with a spray head 19, a plurality of screws 20 are fixedly connected to the top of the conical cover 3, and the bottom ends of the plurality of screws 20 penetrate through the conical cover 3 and are threadedly connected with the same hollow cylinder 1;

[0045] Specifically, the material spraying pipe 18 can be used to deliver the film coating material to the device, and the quartz sand in the device can be coated by the spray head 19, and the conical cover 3 can be disassembled by disassembling the plurality of screws 20 on the top of the conical cover 3, and the internal device of the hollow cylinder 1 can be repaired.

[0046] With reference to Figure 1 The hollow cylinder 1 is provided with an observation window 23 in the upper middle of the front side, a plurality of handles 24 are fixedly connected to the outer side of the hollow cylinder 1, a plurality of support columns 25 are fixedly connected to the bottom of the hollow cone 17, a gasket 26 is fixedly connected to the bottom of each of the plurality of support columns 25, and a controller 27 is fixedly connected to the lower middle of the front side of the hollow cylinder 1, and the controller 27 is electrically connected to the motor 5 and the motor 205, respectively.

[0047] Specifically, the observation window 23 can clearly observe the internal condition of the device, the handle 24 can provide protection for the worker, the support column 25 can provide support for the device, the device can be fixed by using a screw to fix the gasket 26 on the ground, and the controller 27 can control the operation of the motor 5 and the motor 205, respectively. The model of the motor 5 is MS8012, and the model of the motor 205 is F130 micro.

[0048] Working principle: when using the device, first open the feeding cover 22, add quartz sand from the feeding port 21 into the device, then start the motor 5, the motor 5 will drive the driving bevel gear 6 to rotate, since the driven bevel gear 8 is engaged with the driving bevel gear 6, at this time the driven bevel gear 8 will drive the rotating rod 7 to rotate, the rotating rod 7 will rotate at the same time, and the plurality of stirring blades 9 and the first gear 12 on the outer side will rotate, since the second gear 11 is engaged with the first gear 12, the second gear 11 will rotate, and the second gear 11 will drive the ring gear 15 engaged therewith to rotate, the ring gear 15 will rotate, and the two stirring rods 16 on the lower side will rotate, the stirring rods 16 will stir the quartz sand near the cylinder wall, and the double stirring of the stirring blades 9 and the stirring rods 16 can make the coating work of the quartz sand in the device more uniform.

[0049] And when using the device, due to stirring, the quartz sand will generate debris by rubbing against each other, at this time the debris will gradually move downward under the action of stirring and gravity, and enter the gap between the conical filter screen 201 and the hollow cone 17 through the conical filter screen 201, and enter the gap between the hollow pipe 202 and the discharge pipe 203 under the action of gravity, and finally fall out of the device through the inclined filter screen 210, and when the coating of the device is completed, the motor 205 is started, the motor 205 will drive the worm 206 to rotate, since the worm gear 208 is engaged with the worm 206, at this time the worm gear 208 will drive the transmission rod 207 to rotate, the transmission rod 207 will drive the valve 209 to rotate, at this time the valve 209 is opened, the quartz sand will enter the discharge pipe 203 through the hollow pipe 202, and finally enter the discharge port 211 due to the blocking action of the inclined filter screen 210, realizing the separation of the quartz sand and the debris.

[0050] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An automatic discharge mixing device for coated sand, comprising a hollow cylinder (1), characterized in that: A conical cover (3) is provided on the upper side of the hollow cylinder (1). A hollow box (4) is fixedly connected to the top of the conical cover (3). A motor (5) is fixedly connected to the left side of the hollow box (4). The output end of the motor (5) passes through the hollow box (4) and is fixedly connected to a driving bevel gear (6). A rotating rod (7) is rotatably connected to the middle of the bottom inner side of the hollow box (4). A driven bevel gear (8) is fixedly connected to the top of the rotating rod (7). The driven bevel gear (8) meshes with the driving bevel gear (6). The bottom end of the rotating rod (7) passes through the hollow box (4) and the conical cover (3) in sequence. Multiple stirring blades (9) are fixedly connected to the outer periphery of the rotating rod (7). A rotating column (10) is rotatably connected to the front side of the top inner end of the conical cover (3). A rotating column (10) is fixedly connected to the bottom end of the rotating column (10). The second gear (11) is fixedly connected to the upper outer part of the rotating rod (7) and the first gear (12) is fixedly connected to the rear side of the second gear (11). The left and right sides of the top of the conical cover (3) are fixedly connected to the fixing column (13). The bottom of the two fixing columns (13) are fixedly connected to the same hollow ring (14). The inside of the hollow ring (14) is rotatably connected to the ring rack (15). The inside of the ring rack (15) is meshed with the second gear (11). The left and right sides of the bottom of the ring rack (15) are fixedly connected to the stirring rod (16). The bottom of the hollow cylinder (1) is fixedly connected to the hollow cone (17). The bottom of the hollow cone (17) is provided with a separation mechanism (2). The separation mechanism (2) is used to facilitate the separation of debris in the quartz sand.

2. The automatic discharge mixing device for coated sand according to claim 1, characterized in that: The separation mechanism (2) includes a conical filter screen (201), which is fixedly connected to the lower inner part of the hollow cylinder (1). The bottom of the conical filter screen (201) is connected to a hollow tube (202), and the bottom of the hollow cone (17) is connected to a feed pipe (203). The upper outer part of the feed pipe (203) is fixedly connected to a hollow plate (204), and the bottom left side of the hollow plate (204) is fixedly connected to a motor (205). The output end of the motor (205) passes through the hollow plate (204) and is fixedly connected to a worm gear (206). A transmission rod (207) is rotatably connected to the middle of the left inner side of the hollow plate (204). A worm wheel (208) is fixedly connected to the outer side of the transmission rod (207). The worm wheel (208) meshes with the worm (206). The right end of the transmission rod (207) passes through the hollow plate (204), the feed pipe (203), and the hollow pipe (202) in sequence and is fixedly connected to a valve (209). An inclined filter screen (210) is fixedly connected to the lower inner side of the feed pipe (203). A discharge port (211) is opened on the lower right side of the feed pipe (203).

3. The automatic discharge mixing device for coated sand according to claim 1, characterized in that: The top right side of the conical cover (3) is fixedly connected to a spray pipe (18), and the bottom end of the spray pipe (18) passes through the conical cover (3) and is connected to a nozzle (19).

4. The automatic discharge mixing device for coated sand according to claim 1, characterized in that: The top of the conical cover (3) is fixedly connected with a number of screws (20), and the bottom ends of the screws (20) all penetrate the conical cover (3) and are threadedly connected to the same hollow cylinder (1).

5. The automatic discharge mixing device for coated sand according to claim 1, characterized in that: The top left side of the conical cover (3) is connected to the feed inlet (21), and the top of the feed inlet (21) is threadedly connected to the feed cover (22).

6. The automatic discharge mixing device for coated sand according to claim 1, characterized in that: An observation window (23) is provided on the upper front side of the hollow cylinder (1), and multiple handles (24) are fixedly connected around the outer perimeter of the hollow cylinder (1).

7. The automatic discharge mixing device for coated sand according to claim 1, characterized in that: The hollow cone (17) has multiple support columns (25) fixedly connected around its bottom, and each of the support columns (25) has a gasket (26) fixedly connected to its bottom.

8. The automatic discharge mixing device for coated sand according to claim 1, characterized in that: A controller (27) is fixedly connected to the lower front side of the hollow cylinder (1), and the controller (27) is electrically connected to the motor (5) and the motor (205) respectively.

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