Precoated sand cooling roller

Abstract

The utility model belongs to the technical field of precoated sand production, and particularly relates to a precoated sand cooling roller which comprises a roller body, a feeding port is formed in the center of one end of the roller body, the side, away from the feeding port, of the roller body is open, and clamping rings are fixedly arranged on the two sides of the outer side of the roller body in parallel. When the air guide shifting rods turn over and shift sand, the air blowing holes can blow air nearby and cool the sand in an accelerated mode, meanwhile, the air blowing holes in the different air guide shifting rods blow air in a rotating and surrounding mode, blown air flow can continuously interact and influence and is more disordered and dispersed, the action time on turned-over and shifted sand grains is longer, contact with the sand grains is more uniform, and the cooling effect is better. Therefore, the accelerated cooling effect is relatively better, atomized particles generated by hot sand at the feeding end due to heat can be in contact with the sand particles again under the action of disordered airflow after being cooled and are cooled and attached to the surfaces of the sand particles, the atomized particles cannot be directly discharged, and the influence on the environment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production technical field of coated sand, and particularly relates to a coated sand cooling roller. BACKGROUND

[0002] Coated sand is a kind of sand mold or core sand with a layer of solid resin film on the surface of sand particles before molding or core making. It is mainly prepared by cold method and hot method: the cold method uses ethanol to dissolve resin, and adds urotropine in the sand mixing process, so that the two are coated on the surface of sand particles, and coated sand is obtained after ethanol volatilization; the hot method preheats sand to a certain temperature, adds resin to make it melt, stirs to make resin coated on the surface of sand particles, then adds urotropine aqueous solution and lubricant, and coated sand is obtained after cooling, crushing and screening.

[0003] During the production cooling of coated sand, a cooling roller is generally used, the coated sand is added into the roller, the roller is rotated to continuously stir the coated sand, and the coated sand is slowly conveyed to the discharge port through gravity, air is continuously blown in the inside of the cooling roller during the conveying process, and the air flow is used to accelerate the cooling of the coated sand. However, the current ventilation is generally radial through the roller, the air flow direction is single and the speed is relatively fast, the interaction between the air flows is poor, the effect on the sand particles is relatively weak, and radial rapid blowing is easy to blow out the atomized particles of hot sand at the feeding end due to heat from the blowing port, and is easy to cause pollution of the production environment. UTILIZABLE CONTENT

[0004] In view of the above problems, the utility model aims at providing a coated sand cooling roller, which solves the problems that the current ventilation is generally radial through the roller, the air flow direction is single and the speed is relatively fast, the interaction between the air flows is poor, the effect on the sand particles is relatively weak, and radial rapid blowing is easy to blow out the atomized particles of hot sand at the feeding end due to heat from the blowing port, and is easy to cause pollution of the production environment.

[0005] In order to achieve the above object, the utility model discloses the technical scheme that a kind of film-coated sand cooling roller is used: a film-coated sand cooling roller, including roller, the center of one end of the roller is equipped with feed inlet, the side of the roller away from feed inlet is open, the outside of the roller is fixedly provided with snap ring in parallel on both sides, the lower side of the snap ring is slidably connected with bracket, the lower side of the bracket is provided with support rod, the lower end of the support rod is provided with bottom plate, the upper side of the bottom plate is provided with motor, the output of the motor is provided with driving wheel, the outside of the roller is provided with transmission ring corresponding driving wheel, transmission ring and driving wheel are provided with belt between transmission, the inside of the roller is provided with gas guide rod at equal intervals, the same side of the rotation direction of the gas guide rod is evenly provided with air blowing hole, the open end of the roller is rotatably provided with fixed cylinder, the side of the lower side of the fixed cylinder close to the roller is provided with fixed plate, the fixed plate is fixedly arranged on the bottom plate, the lower side of the fixed cylinder is equipped with discharge port, the side of the fixed cylinder away from the roller is rotatably provided with gas guide disc, the gas guide rod is communicated with gas guide disc by passing through fixed cylinder, the side of the gas guide disc away from the fixed cylinder is provided with fixed frame in the center, the input of the fixed frame is communicated and is provided with air inlet pipe.

[0006] The beneficial effects of the utility model are that: the gas guide rod is in the process of turning and stirring sand, and the air blowing hole will blow air nearby to accelerate the cooling of sand, and the air blowing holes on different gas guide rods rotate to blow air, the airflow will continue to interact and affect each other, and the airflow will be more chaotic and dispersed, the sand will be in contact for a longer time, and the contact will be more uniform, so that the cooling effect will be relatively better, and the atomized particles of hot sand at the feeding end will be re-contacted and cooled on the surface of the sand under the action of the chaotic airflow after cooling, and will not be directly discharged, reducing the impact on the environment.

[0007] In order to change the overall height and inclination angle of the roller;

[0008] As a further improvement of the above technical solution: the lower side of the bottom plate is provided with a base, the upper side of the base is symmetrically provided with a hydraulic telescopic rod on both sides, and the output end of the hydraulic telescopic rod is rotatably connected with the lower side of the bottom plate.

[0009] The beneficial effects of the improvement are that: the output end of the hydraulic telescopic rod pushes the bottom plate, so that the overall height and inclination angle of the roller can be changed.

[0010] In order to prevent sand from entering the inside of the gas guide rod;

[0011] As a further improvement of the above technical solution: the side of the gas guide rod corresponding to the side of the air blowing hole is provided with a filter screen.

[0012] The beneficial effects of the improvement are that: the filter screen can prevent sand from entering the inside of the gas guide rod.

[0013] For material guiding and discharging;

[0014] As a further improvement of the above technical solution: the side of the fixed plate away from the roller is provided with a discharging guide plate below the discharging port.

[0015] The beneficial effect of the improvement is that the discharging guide plate is used for guiding and discharging materials.

[0016] For fixing the rotary air valve;

[0017] As a further improvement of the above technical solution: the upper side of the discharging guide plate is provided with a fixing frame, and the upper end of the fixing frame is fixedly connected with the rotary air valve.

[0018] The beneficial effect of the improvement is that the fixing frame is used for fixing the rotary air valve, increasing the stability of the rotary air valve, and avoiding the rotary air valve from being affected by the air guide disc.

[0019] To avoid the direct discharge of air flow from the discharging port;

[0020] As a further improvement of the above technical solution: the upper side of the fixed cylinder is provided with a centrifugal fan, and a gas suction pipe is arranged in communication between the input end of the centrifugal fan and the inner side of the fixed cylinder.

[0021] The beneficial effect of the improvement is that the centrifugal fan is arranged to suck air from the inner side of the fixed cylinder through the gas suction pipe, so that the air in the roller is discharged in large quantities from the centrifugal fan, avoiding the direct discharge of air flow from the discharging port, which has an adverse effect on the discharging and receiving of materials.

[0022] To treat and absorb the discharged air;

[0023] As a further improvement of the above technical solution: the upper side of the fixed cylinder is provided with a treatment tank, the inner side of the treatment tank is filled with a treatment liquid, the output end of the centrifugal fan is provided with an air outlet pipe, and the output end of the air outlet pipe is immersed in the treatment liquid.

[0024] The beneficial effect of the improvement is that a small amount of gas and atomized particles are wrapped in the air flow in the roller, and the treatment liquid can treat and absorb the discharged air.

[0025] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the utility model;

[0027] Figure 2 It is a structural side view of the utility model;

[0028] Figure 3The utility model discloses a connecting structure schematic diagram of the roller and the fixed cylinder in the utility model;

[0029] Figure 4 The utility model discloses a structure schematic diagram of the roller in the utility model;

[0030] Figure 5 The utility model discloses a structure schematic diagram of the discharge cylinder in the utility model;

[0031] In the drawing: 1, the roller;2, the feed inlet;3, the snap ring;4, the bracket;5, the support rod;6, the bottom plate;7, the transmission ring;8, the motor;9, the fixed cylinder;10, the discharge port;11, the fixed plate;12, the air guide disc;13, the air guide rod;14, the air blowing hole;15, the rotary air valve;16, the air inlet pipe;17, the discharge guide plate;18, the fixed frame;19, the centrifugal fan;20, the air extraction pipe;21, the processing box;22, the air outlet pipe;23, the base;24, the hydraulic telescopic rod. Specific implementation

[0032] In order to make the person skilled in the art better understand the technical scheme of the present application, the present application will be described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0033] As Figure 1 — Figure 5The utility model discloses a kind of coated sand cooling roller, including roller 1, the centre of one end of the roller 1 is provided with feed inlet 2, the side of the roller 1 away from feed inlet 2 is open, the outside of the roller 1 both sides is fixedly provided with snap ring 3, the downside of the snap ring 3 is slidably connected with bracket 4, the downside of the bracket 4 is provided with support rod 5, the lower end of the support rod 5 is provided with bottom plate 6, the upside of the bottom plate 6 middle part is provided with motor 8, the output of the motor 8 is provided with driving wheel, the outside of the roller 1 is provided with transmission ring 7 corresponding driving wheel, transmission is provided with belt between the transmission ring 7 and driving wheel, the inside of the roller 1 equidistantly is provided with air guide poking rod 13, the same side of the rotation direction of the air guide poking rod 13 is evenly provided with air blowing hole 14, the open end of the roller 1 is rotatably provided with fixed cylinder 9, the downside of the fixed cylinder 9 is close to the side of the roller 1 and is provided with fixed plate 11, the fixed plate 11 is fixedly provided on bottom plate 6, the downside of the fixed cylinder 9 is provided with discharge port 10, the side of the fixed cylinder 9 away from the roller 1 is rotatably provided with air guide disc 12, the air guide poking rod 13 all passes through fixed cylinder 9 and is communicated with air guide disc 12, the centre of the side of the air guide disc 12 away from fixed cylinder 9 is provided with fixed frame 18, the input of the fixed frame 18 is communicated and is provided with air inlet pipe 16, air guide poking rod 13 is while turning over sand, air blowing hole 14 will be near air outlet, and sand is accelerated cooling, simultaneously, air blowing hole 14 on different air guide poking rod 13 is rotary and surrounds air outlet, and the airflow of blowing will continue to interact and influence, and will be more chaotic dispersion, and the effect time of the action of sand grain is longer, and the contact of sand grain is more uniform, so that the cooling effect of acceleration is relatively better, and atomized particles of hot sand of feeding end due to heat will be re-contacted and cooled and attached on the surface of sand grain after cooling, and will not be directly discharged, reduce the influence on environment, the downside of the bottom plate 6 is provided with base 23, the upside of the base 23 both sides is symmetrically provided with hydraulic telescopic rod 24, the output of the hydraulic telescopic rod 24 is all rotatably connected with the downside of bottom plate 6, and the output of hydraulic telescopic rod 24 pushes bottom plate 6, can change the overall height and inclination angle of the roller 1, the inside of the air guide poking rod 13 is provided with filter screen corresponding to the side of air blowing hole 14, and setting filter screen can prevent sand from entering the inside of air guide poking rod 13, the side of the fixed plate 11 away from the roller 1 is provided with discharge guide plate 17 directly below discharge port 10, and setting discharge guide plate 17 is used for guiding material and discharging, the upside of the discharge guide plate 17 is symmetrically provided with fixed frame 18, the upper end of the fixed frame 18 is fixedly connected with rotary air valve 15, and setting fixed frame 18 is used for fixing rotary air valve 15, increase the stability of rotary air valve 15, avoid rotary air valve 15 to be affected and rotated by air guide disc 12, the upside of the fixed cylinder 9 is provided with centrifugal fan 19, the input of the centrifugal fan 19 and the inside of the fixed cylinder 9 are communicated and are provided with air extraction pipe 20, setting centrifugal fan 19,The centrifugal fan 19 draws air from the inside of the fixed cylinder 9 through the air outlet pipe 20, so that the control air in the drum 1 is discharged from the centrifugal fan 19, avoiding the direct discharge of the air flow from the discharge port 10, which has an adverse effect on the discharge and receiving of materials, the upper side of the fixed cylinder 9 is provided with a treatment box 21, the inside of the treatment box 21 is filled with treatment liquid, the output end of the centrifugal fan 19 is provided with an air outlet pipe 22, the output end of the air outlet pipe 22 is immersed in the treatment liquid, a small amount of gas and atomized particles and the like in the air flow in the drum 1 can be wrapped, and the treatment liquid can treat and absorb the discharged air.

[0034] The working principle and use process of the utility model are as follows:

[0035] In use, the feed pipe sends the sand into the drum 1 through the feed port 2, the output end of the motor 8 drives the driving wheel to rotate, the driving wheel drives the transmission ring 7 through the belt, the transmission ring 7 drives the drum 1 to rotate, the drum 1 is placed obliquely downward as a whole away from the feed port 2, when the drum 1 rotates, the air guide stirring rod 13 is driven by the drum 1 to rotate, the air guide stirring rod 13 repeatedly stirs the sand on the inner side of the drum 1, and the sand slowly moves to the discharge port 10 under the action of gravity, and the air inlet pipe 16 is connected with a blower fan, etc., the airflow enters the air guide disc 12 through the rotating air valve 15, and then is discharged through the blowing hole 14 of the air guide stirring rod 13, the blowing hole 14 is arranged on the side of the air guide stirring rod 13 which stirs the sand when the air guide stirring rod 13 rotates, so that the blowing hole 14 blows air nearby when the air guide stirring rod 13 stirs the sand, and the sand is accelerated and cooled, at the same time, the blowing holes 14 on different air guide stirring rods 13 rotate around to blow air, the blown airflows continuously interact and affect each other, are more chaotic and dispersed, act on the stirred sand particles for a longer time, and contact the sand particles more uniformly, so that the cooling effect is relatively better, and the atomized particles of the hot sand at the feeding end are re-contacted and cooled and attached to the surface of the sand particles under the action of the chaotic airflow after cooling, and are not directly discharged, thereby reducing the influence on the environment, in addition, the output end of the hydraulic telescopic rod 24 pushes the bottom plate 6, so that the overall height and inclination angle of the drum 1 can be changed, in addition, a filter screen is arranged during use, so that the sand particles are prevented from entering the inner side of the air guide stirring rod 13, in addition, a discharge guide plate 17 is arranged for guiding and discharging the material, in addition, a fixing frame 18 is arranged during use for fixing the rotating air valve 15, so as to increase the stability of the rotating air valve 15 and avoid the rotating air valve 15 from being affected by the air guide disc 12 to rotate, in addition, a centrifugal fan 19 is arranged, the centrifugal fan 19 draws air from the inner side of the fixed cylinder 9 through the air suction pipe 20, so as to make the air in the drum 1 be discharged from the centrifugal fan 19 in a large amount, thereby avoiding the air flow from being directly discharged from the discharge port 10 downward to adversely affect the discharge and receiving of the material, in addition, the upper side of the fixed cylinder 9 is provided with a treatment box 21, the inner side of the treatment box 21 is filled with a treatment liquid, the output end of the centrifugal fan 19 is provided with an air outlet pipe 22, the output end of the air outlet pipe 22 is immersed in the treatment liquid, a small amount of gas and atomized particles in the airflow in the drum 1 are wrapped, and the treatment liquid can treat and absorb the discharged air.

[0036] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be pointed out that, due to the limited expression of the text, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A coated sand cooling drum, characterized by: The utility model provides a kind of material feeding device, including roller (1), the one end center of the roller (1) is provided with feed inlet (2), the side of the roller (1) away from feed inlet (2) is open, the outside of the roller (1) both sides is fixedly provided with snap ring (3), the downside of the snap ring (3) is slidably connected with bracket (4), the downside of the bracket (4) is provided with support rod (5), the lower end of the support rod (5) is provided with bottom plate (6), the upside of the bottom plate (6) middle part is provided with motor (8), the output of the motor (8) is provided with driving wheel, the outside of the roller (1) is provided with transmission ring (7) corresponding driving wheel, transmission is provided with belt between the transmission ring (7) and driving wheel, the inside of the roller (1) is provided with gas guide rod (13) equidistantly around, the same side of the rotation direction of the gas guide rod (13) is evenly provided with air blowing hole (14), the open end of the roller (1) is rotatably provided with fixed cylinder (9), the downside of the fixed cylinder (9) is provided with fixed plate (11) close to the side of the roller (1), the fixed plate (11) is fixedly provided on bottom plate (6), the downside of the fixed cylinder (9) is provided with discharge port (10), the side of the fixed cylinder (9) away from the roller (1) is rotatably provided with gas guide disc (12), the gas guide rod (13) all passes through fixed cylinder (9) and is communicated with gas guide disc (12), the side of the gas guide disc (12) away from the fixed cylinder (9) is provided with fixed frame (18), the input of the fixed frame (18) is communicated and is provided with air inlet pipe (16).

2. A coated sand cooling drum according to claim 1, wherein: The downside of the bottom plate (6) is provided with base (23), the upside of the base (23) both sides is symmetrically provided with hydraulic telescopic rod (24), the output of the hydraulic telescopic rod (24) is rotatably connected with the downside of the bottom plate (6).

3. The coated sand cooling drum of claim 1, wherein: The inside of the gas guide rod (13) is provided with filter screen corresponding to the side of air blowing hole (14).

4. The coated sand cooling drum of claim 1, wherein: The side of the fixed plate (11) away from the roller (1) is provided with discharge guide plate (17) directly below discharge port (10).

5. A coated sand cooling drum according to claim 4, wherein: The upside of the discharge guide plate (17) is symmetrically provided with fixed frame (18), and the upper end of the fixed frame (18) is fixedly connected with the rotating air valve (15).

6. The coated sand cooling drum of claim 1, wherein: The upside of the fixed cylinder (9) is provided with centrifugal fan (19), and the input of the centrifugal fan (19) is communicated with the inside of the fixed cylinder (9) and is provided with air extraction pipe (20).

7. A coated sand cooling drum according to claim 6, wherein: The upside of the fixed cylinder (9) is provided with processing box (21), the inside of the processing box (21) is filled with treatment liquid, the output of the centrifugal fan (19) is provided with air outlet pipe (22), and the output of the air outlet pipe (22) is immersed in the treatment liquid.

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