CN217666207U - Reaction device for recycling inorganic core sand water supplement - Google Patents

Abstract

The utility model provides a reaction device for inorganic core sand water replenishing and recycling, which comprises a reaction barrel, a water adding device, a heating device and a driving device; the heating device is arranged at the bottom of the reaction barrel; the water adding device is used for providing water for the interior of the reaction barrel; the driving device is used for driving the reaction barrel to rotate. The reaction device for recycling the inorganic core sand replenishing water provided by the utility model has simple structure and convenient use, and is beneficial to industrial production and application; in addition, the failed inorganic core sand can be subjected to reversible treatment, so that the waste of the binder and the additive is avoided; the long-term storage of the inorganic core sand can also be realized.

Description

Reaction device for recycling inorganic core sand water replenishing

Technical Field

The utility model belongs to the technical field of the foundry sand, a reaction unit for inorganic core sand moisturizing is recycled is related to.

Background

In the aspect of casting, the inorganic binder has the advantages of environmental protection, no pollution and the like. However, the inorganic core sand (sand mixed by the inorganic binder and the foundry sand) is exposed in the air and contacts with the air, the inorganic binder can generate dehydration condensation reaction to adhere sand grains together, gradually spread to the center, and then is solidified and crusted. Causing the inorganic core sand to fail.

At present, the treatment method aiming at the ineffective inorganic core sand adopts the methods of mechanical method, wet method, mechanical method + thermal method, thermal method + wet method and the like to regenerate the sand.

CN 107812881A discloses an inorganic sand regeneration method and inorganic regenerated sand, the regeneration method includes the following steps: (1) first mechanical regeneration: crushing the inorganic used sand to obtain primary mechanically regenerated sand; (2) thermal regeneration: heating the primary mechanically reclaimed sand to obtain thermally reclaimed sand; (3) second mechanical regeneration: mechanically grinding the thermal method reclaimed sand to obtain secondary mechanical reclaimed sand; (4) And removing the crushed impurities in the secondary mechanical reclaimed sand to obtain the inorganic reclaimed sand.

CN 109226668A discloses a method for regenerating inorganic sand, which comprises the following steps: (1) Mechanically crushing the inorganic used sand until the particle size is less than 6mm, and sieving to obtain sand A; (2) Carrying out boiling type roasting on the sand A in a roasting furnace, then entering a smoldering zone, and continuing roasting to obtain sand B; (3) Mechanically grinding the sand B at 250-350 ℃, cooling, pumping the ground fine powder away by induced air, and recovering heat brought by the induced air for fluidized bed roasting to obtain sand C; (4) And adding water into the sand C, mixing and stirring, separating water, recycling, drying and cooling to obtain the inorganic reclaimed sand.

CN 113695515A discloses a process for regenerating inorganic sand, said process comprises the following steps: (1) The used sand is lifted to a batching machine through a storage box, and is conveyed to a crusher after batching; (2) After the sand material is crushed by the crusher, screening by a screening machine and removing dust by a dust removal system; (3) The sand material after dust removal enters an aeration dissolution washing tank to carry out two-stage aeration dissolution washing; (4) After being washed by air water, the sand enters an aeration sand washing tank for two-stage aeration washing, and glue solution is attached to the surface of the washed sand to clean the surface of the sand; (5) Conveying the sand material cleaned in the step (4) to a tubular separator and a bed filter for sand-water separation twice; (6) And conveying the dewatered sand material to a dryer through a belt conveyor, drying and conveying to a finished product bin for later use.

CN 107812881A discloses an inorganic sand regeneration method and inorganic regenerated sand, the inorganic sand regeneration method comprises the following steps: (1) first mechanical regeneration: crushing the inorganic used sand to obtain primary mechanically regenerated sand; (2) thermal regeneration: heating the primary mechanically reclaimed sand to obtain thermally reclaimed sand; (3) second mechanical regeneration: mechanically grinding the thermal method reclaimed sand to obtain secondary mechanical reclaimed sand; (4) And removing the crushed impurities in the secondary mechanical reclaimed sand to obtain the inorganic reclaimed sand.

Although the above patents disclose the treatment of the inorganic core sand after failure, the disclosed method and the regenerated inorganic core sand destroy the original reagent on the surface of the inorganic core sand, and the inorganic binder needs to be coated again before reuse, which affects the reuse of the inorganic core sand.

In summary, it is one of the problems to be solved in the art to provide a reuse method for performing a water absorption reaction on incompletely solidified inorganic core sand to separate the adhered core sand, so as to achieve a state similar to that of the freshly mixed core sand, and to continue to be used for core making, thereby avoiding the waste of the core sand.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a reaction unit for inorganic core sand moisturizing is recycled. The reaction device for inorganic core sand water replenishing recycling can recover the performance of invalid inorganic core sand and then recycle the inorganic core sand, so that the waste of a binder and an additive is avoided; the long-term storage of the inorganic core sand can also be realized.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a reaction device for recycling inorganic core sand water replenishing, which comprises a reaction barrel, a water adding device, a heating device and a driving device;

the heating device is arranged at the bottom of the reaction barrel;

the water adding device is used for providing water for the reaction inner barrel;

the driving device is used for driving the reaction barrel to rotate.

The utility model provides a reaction unit for inorganic core sand moisturizing is recycled simple structure, and the reaction barrel is a sealing device, will not put into inclosed space completely solidified inorganic core sand, and the sealed back lasts the stirring for a period, improves airtight space temperature simultaneously for reaction rate.

Preferably, the heating means includes a temperature sensor, a heating plate, and an outer frame.

Preferably, the temperature sensor is used for detecting the temperature in the reaction barrel.

Preferably, the outer frame is used to fix the heating plate.

The utility model provides a hot plate adopts electromagnetic heating, can detect temperature intelligent regulation according to temperature sensor, also can adopt resistance heating. The utility model discloses do not restrict the selection material of hot plate, as long as can satisfy and provide the heat for the reaction barrel, all can adopt.

Preferably, the drive means comprises a roller drive and/or a screw drive.

Preferably, the roller drive comprises a motor, a gear and a roller which are sequentially connected.

Preferably, the surface of the roller is provided with a rubber layer.

The purpose that the surface of roller bearing set up the rubber layer is the coefficient of friction between increase reaction barrel and the roller bearing, through the rotation of friction drive reaction barrel.

The utility model provides a roller bearing drive, motor drive gear rotate, then drive the roller bearing and rotate, and the contact surface between retort and the roller bearing has great coefficient of friction, drives the retort through big frictional force and rotates to make the inside grit of retort roll from top to bottom, realize the stirring effect.

Preferably, the screw drive comprises a screw blade.

If the roller drive fails, the screw drive can also realize the stirring effect of the inorganic core sand in the reaction barrel.

Preferably, the helical blade is disposed inside the reaction barrel.

Preferably, one end of the reaction barrel is provided with a sealing cover.

The purpose of the sealing cover is to ensure that the reaction barrel keeps a closed environment in the sand mixing process, and the water absorption reaction is ensured.

Preferably, the reaction barrel further comprises a sand outlet guide plate.

Preferably, the sand outlet guide plate is arranged on one side close to the sealing cover.

Go out sand guide plate and be used for collecting the inorganic core sand after the reaction. When taking sand, the sand in the reaction barrel slides down along the sand outlet guide plate, so that the collection is convenient and the labor is saved.

Preferably, the water adding device comprises a water pump and a water delivery pipe which are sequentially connected.

Preferably, the water adding device further comprises an inorganic core sand water content detection device.

The utility model discloses according to the water content that inorganic core sand water content detection device provided, the definite direction the inside addition amount of adding water of retort.

The utility model provides a water pump is used for the control time and adds the water yield, and the water yield that adds to the reaction vessel reachs according to the numerical value calculation that the water content detector detected, the computational formula: the water addition amount = inorganic core sand weight x (set water content-measured water content), and when the measured water content is more than or equal to 1.6%, no water needs to be added; the purpose of adding water into the reaction barrel is to supplement the water required by the reaction and increase the water content of the reaction environment.

Preferably, the outlet of the water pipe is arranged inside the reaction barrel.

Preferably, an atomization device is arranged at the outlet of the water conveying pipe.

Preferably, the reaction device further comprises a supporting device and a control switch.

Preferably, the supporting device is used for supporting the reaction barrel.

Preferably, the control switch is used for controlling the operation of the heating device, the driving device and the water adding device.

The utility model provides a reaction unit for inorganic core sand moisturizing is recycled still includes that the reaction barrel is spacing for prevent the roll of reaction barrel, improve the stability of stirring.

The utility model also provides an adopt the reaction unit who is used for inorganic core sand moisturizing to recycle the method of recycling of inorganic core sand that goes on.

The reuse method is as follows:

mixing the invalid inorganic core sand and a proper amount of water in a reaction barrel, and then heating and stirring the mixture to generate a water absorption reaction so as to obtain the inorganic core sand with the recovery performance.

Preferably, the spent inorganic core sand and water have a solid-to-liquid ratio of 1000 (1-12), which may be, for example, 1000: 10. 1000, 11 or 1000, but not limited to the recited values, other values not recited within the numerical range are equally applicable.

The solid-to-liquid ratio of the inorganic core sand and the water that lose efficacy calculates according to the water content of the inorganic core sand.

Preferably, the stirring speed is 60-200r/min, for example 60r/min, 80r/min, 100r/min, 120r/min, 140r/min, 160r/min, 180r/min or 200r/min, but is not limited to the recited values, and other values not recited in the numerical range are equally applicable.

Preferably, the temperature of the water absorption reaction is 20 to 70 ℃, for example, 20 ℃, 30 ℃, 40 ℃, 50 ℃, 60 ℃ or 70 ℃, but not limited to the recited values, and other values not recited in the numerical range are also applicable.

Preferably, the time of the water absorption reaction is 10-60min, such as 10min, 20min, 30min, 40min, 50min or 60min, but not limited to the recited values, and other values not recited in the range of values are also applicable.

As the preferred technical scheme of the utility model, the inorganic core sand recycle method as follows:

mixing the ineffective inorganic core sand and water in a reaction barrel according to the solid-liquid ratio of 1000 (1-12), and then carrying out water absorption reaction for 5-60min at the rotating speed of 60-200r/min and the temperature of 20-70 ℃ to obtain the inorganic core sand with the recovered function.

The utility model provides a reuse method still includes aftertreatment. And the post-treatment comprises sand taking and sealed collection which are sequentially carried out.

In the sand taking process, a sand taking button is pressed to enable a motor to rotate reversely, the spiral structure in the reaction barrel drives the sand to roll out, and the taken inorganic core sand is placed in a sealing bag for storage.

The numerical range of the present invention includes not only the point values listed above, but also any point values between the above numerical ranges not listed, which is limited to space and for the sake of brevity, the present invention does not exhaust the specific point values included in the range.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The reaction device for recycling the inorganic core sand water replenishing is simple in structure, convenient to use and beneficial to industrial production and application;

(2) The reaction device for inorganic core sand water replenishing recycling provided by the utility model can reversibly treat the ineffective inorganic core sand, and avoid the waste of the binder and the additive; the long-term storage of the inorganic core sand can also be realized.

Drawings

FIG. 1 is a schematic structural view of a reaction device for recycling inorganic core sand replenishing water provided in embodiment 1 of the present invention;

fig. 2 is a schematic diagram of specific components of a reaction device for inorganic core sand water replenishing recycling provided in embodiment 1 of the present invention.

Wherein: 1 is a sand mixing barrel, 2 is a driving device, 2-1 is a motor, 2-2 is a gear, 2-3 is a rolling shaft, 3 is a water adding device, 3-1 is a water pump, 3-2 is a water conveying pipe, 4 is a sand discharging plate, 5 is a supporting device, 6-1 is a heating plate, 6-2 is a heating outer frame, 7 is a control switch, and 8 is a sand mixing barrel limit.

Detailed Description

It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" or "connected" in the description of the present invention are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In order to show the effectiveness of the recycling method of the present invention, the inorganic core sand processed by the specific implementation method of the present invention is the same inorganic core sand, and the preparation method of the inorganic core sand is as follows:

adding 8kg of silica sand into a sand mixer, adding 68g of additive, adding 160g of inorganic binder, and stirring to obtain the inorganic core sand.

Example 1

The embodiment provides a reaction device for recycling inorganic core sand water replenishing shown in fig. 1 and fig. 2, which comprises a reaction barrel 1, a heating device, a driving device 2 and a water adding device 3; the heating device is arranged at the bottom of the reaction barrel 1; the driving device 2 is used for driving the reaction barrel 1 to rotate; the water adding device 3 is used for adding a proper amount of water into the reaction barrel 1.

The heating device comprises a heating plate 6-1 and an outer frame 6-2; the outer frame 6-2 is used for fixing the heating plate 6-1; the heating plate 6-1 is an electromagnetic heating plate.

The driving device 2 comprises a roller drive and a spiral drive; the roller driving device comprises a motor 2-1, a gear 2-2 and a roller 2-3 which are sequentially connected; the surface of the roller 2-3 is provided with a rubber layer;

the screw drive comprises a screw blade; the helical blade is arranged inside the reaction barrel.

One end of the reaction barrel 1 is provided with a sealing cover; the reaction barrel 1 also comprises a sand outlet flow guide plate 4; the sand outlet guide plate 4 is arranged on one side close to the sealing cover.

The water adding device 3 comprises a water pump 3-1 and a water delivery pipe 3-2 which are connected in sequence; the outlet of the water delivery pipe 3-2 is arranged inside the reaction barrel 1; an atomization device is arranged at the outlet of the water delivery pipe 3-2.

The reaction device also comprises a supporting device 5, a control switch 7 and a reaction barrel limit 8; the supporting device 5 is used for supporting the reaction barrel 1; the control switch 7 is used for controlling the operation of the heating device, the driving device 2 and the water adding device 3; reaction barrel spacing 8 is used for preventing reaction barrel 1 from shaking left and right.

Example 2

This example provides a reaction apparatus for inorganic core sand water replenishing recycling, which differs from example 1 only in that: the embodiment omits a water adding device.

Comparative example 1

This comparative example provides a reaction apparatus for inorganic core sand water replenishing recycling, which differs from example 1 only in that: this comparative example omits the heating device.

Application example 1

The application example provides an inorganic core sand water absorption reaction carried out by adopting the reaction device for inorganic core sand water replenishing and recycling provided by the embodiment 1, and the recycling method comprises the following steps:

and (3) mixing the ineffective inorganic core sand and water in a reaction barrel according to the solid-liquid ratio of 1000.

The failed inorganic core sand is placed in a high-temperature low-humidity environment for 40min, and a large amount of the failed inorganic core sand is solidified and crusted.

The performance of the recovered inorganic core sand was measured, and the results are shown in table 1.

Application example 2

The present application example provides a water absorption reaction of inorganic core sand performed by using the reaction apparatus for water replenishing and recycling of inorganic core sand provided in example 2, and the recycling method is as follows:

and placing the ineffective inorganic core sand in a reaction barrel, and then carrying out water absorption reaction for 60min at the rotating speed of 60r/min and the temperature of 30 ℃ to obtain the inorganic core sand with the recovered function.

The failed inorganic core sand is placed in a high-temperature low-humidity environment for 40min, and is solidified and crusted in a large quantity.

The performance of the recovered inorganic core sand was measured, and the results are shown in table 1.

Blank control

The application example provides invalid inorganic core sand, wherein the invalid inorganic core sand is placed in a high-temperature low-humidity environment for 40min, and a large amount of the invalid inorganic core sand is solidified and crusted.

TABLE 1

Relativity is the ratio of the properties of the initial inorganic core sand under the conditions, with a larger percentage indicating better inorganic core sand performance.

According to the table 1, the utility model provides a reuse method can pass through the reaction of absorbing water with the inorganic core sand that became invalid, can resume not the inorganic core sand of complete solidification to more than 80% of initial performance, can continue to be used for the system core.

In summary, the reaction device for recycling the inorganic core sand replenishing water provided by the utility model has simple structure and convenient use, and is beneficial to industrial production and application; in addition, the inorganic core sand which is invalid can be reversibly treated, so that the waste of a binder and an additive is avoided; the long-term storage of the inorganic core sand can also be realized.

The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.

Claims (10)

1. A reaction device for recycling inorganic core sand water replenishing is characterized by comprising a reaction barrel, a water adding device, a heating device and a driving device;

the heating device is arranged at the bottom of the reaction barrel;

the water adding device is used for providing water for the interior of the reaction barrel;

the driving device is used for driving the reaction barrel to rotate.

2. The reaction device for the water replenishing and recycling of the inorganic core sand according to claim 1, wherein the heating device comprises a temperature sensor, a heating plate and an outer frame;

the temperature sensor is used for detecting the temperature in the reaction barrel;

the outer frame is used for fixing the heating plate.

3. The reaction device for inorganic core sand moisturizing reuse according to claim 1, wherein said driving means comprises a roller drive and/or a screw drive.

4. The reaction device for inorganic core sand water replenishing recycling according to claim 3, wherein the roller driving comprises a motor, a gear and a roller which are sequentially connected;

the surface of the rolling shaft is provided with a rubber layer.

5. The reaction device for inorganic core sand moisturizing reuse of claim 3, wherein said screw drive comprises a screw blade;

the helical blade is arranged inside the reaction barrel.

6. The reaction device for inorganic core sand moisturizing reuse according to claim 1, wherein a sealing cover is provided at one end of the reaction barrel;

the reaction barrel also comprises a sand outlet flow guide plate;

the sand outlet guide plate is arranged on one side close to the sealing cover.

7. The reaction device for inorganic core sand water replenishing and recycling according to claim 1, wherein the water adding device comprises a water pump and a water delivery pipe which are sequentially connected;

the outlet of the water conveying pipe is arranged inside the reaction barrel;

an atomization device is arranged at the outlet of the water delivery pipe.

8. The reaction device for inorganic core sand water replenishing and recycling according to claim 7, wherein the water adding device further comprises an inorganic core sand water content detecting device.

9. The reaction device for inorganic core sand moisturizing reuse according to claim 1, further comprising a support device and a control switch.

10. The reaction device for inorganic core sand water replenishing recycling according to claim 9, wherein the supporting device is used for supporting the reaction barrel;

the control switch is used for controlling the operation of the heating device, the driving device and the water adding device.

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