CN211823609U - Aggregate drying device for dry-mixed mortar production - Google Patents

Abstract

The utility model relates to an aggregate drying device is used in dry-mixed mortar production, it includes the barrel, be equipped with a plurality of one-level lifting blades and second grade lifting blade in the barrel on the global, one-level lifting blade and second grade lifting blade are connected in the barrel inner wall on one side, one-level lifting blade and second grade lifting blade set up along barrel cross section interval, the width of second grade lifting blade is greater than the width of one-level lifting blade. The utility model discloses can increase raising of aggregate and spill the scope to improve aggregate and the hot-air's in the drying-machine heat exchange efficiency, have the effect that improves aggregate drying efficiency.

Description

Aggregate drying device for dry-mixed mortar production

Technical Field

The utility model belongs to the technical field of dry-mixed mortar production facility's technique and specifically relates to an aggregate drying device is used in dry-mixed mortar production.

Background

The dry-mixed mortar is a granular or powdery material which is prepared by physically mixing dry-screened aggregate such as quartz sand, inorganic cementing materials such as cement, additives such as polymers and the like according to a certain proportion, and is transported to a construction site in a bag or bulk form, and the material can be directly used after being mixed with water.

The pretreatment of the aggregate for producing the dry-mixed mortar comprises the steps of screening, conveying and drying the aggregate, mixing and stirring the dried aggregate and various raw materials after metering to form the dry-mixed mortar, and then packaging and storing or transporting the dry-mixed mortar to a construction site for use.

The aggregate drying method is characterized in that a rotary drum type dryer is generally used during aggregate drying, a combustion chamber capable of heating and providing heat for the dryer is connected to the dryer, a plurality of lifting plates are arranged in the dryer, after the aggregate enters the dryer, the aggregate is repeatedly brought to a certain height under the action of the lifting plates by the rotation of the dryer and then lifted and scattered, a dispersed material curtain is formed in the dryer, and the aggregate and hot air in the dryer are subjected to heat exchange, so that the purpose of drying the aggregate is achieved.

The lifting blade in common drying-machine is straight platelike lifting blade, and the lifting blade sets up around the drying-machine inner wall, and along with the rotation of drying-machine, can follow slope to the level after the lifting blade rotates gradually, to the state change of slope again, makes the aggregate advance to go into the lifting blade and spills out the lifting blade again.

The above prior art solutions have the following drawbacks: when the rotating speed of the dryer is low, the inertia effect on the aggregates is low, so that the raising and scattering range of the aggregates is small and the aggregates are relatively concentrated on the inner wall of the dryer, a wind tunnel (namely a place where the aggregates cannot be raised and scattered) is easily formed in the middle of the dryer, the heat exchange efficiency between the aggregates and hot air in the dryer is reduced, and the drying efficiency of the aggregates is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an aggregate drying device is used in dry-mixed mortar production, its can increase raising of aggregate and spill the scope to improve aggregate and the hot-air's in the drying-machine heat exchange efficiency, have the effect that improves aggregate drying efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an aggregate drying device is used in dry-mixed mortar production which characterized in that: the lifting device comprises a barrel, wherein a plurality of first-stage lifting blades and second-stage lifting blades are arranged on the inner circumferential surface of the barrel, the first-stage lifting blades and the second-stage lifting blades are connected to the inner wall of the barrel on one side, the first-stage lifting blades and the second-stage lifting blades are arranged at intervals along the cross section of the barrel, and the width of the second-stage lifting blades is larger than that of the first-stage lifting blades.

Through adopting above-mentioned technical scheme, through set up one-level lifting blade and second grade lifting blade in the barrel, when the width of second grade lifting blade is greater than the width of one-level lifting blade, along with the rotation of barrel, raise from the one-level lifting blade and spill down the aggregate can get into on the second grade lifting blade afterwards, raise from the second grade lifting blade after second grade lifting blade rotates again and spill down, also throw from the place that is closer to the barrel middle part more and spill down, thereby the area of contact of aggregate and hot-air in the barrel has been increased and the scope of spilling is raised, even when the barrel rotates slower, also can reduce the formation of barrel middle part "cavity", and then improved the heat exchange efficiency of hot-air in aggregate and the drying-machine, the effect that has improvement aggregate drying efficiency. And, compare only one kind lifting blade among the prior art, the utility model discloses well aggregate has been raised upward from one-level lifting blade to second grade lifting blade through the secondary and has spilt for the drying efficiency of aggregate is higher.

The present invention may be further configured in a preferred embodiment as: the distance between the second-stage lifting blades and the upper one-stage lifting blades is larger than the distance between the second-stage lifting blades and the lower one-stage lifting blades.

Through adopting above-mentioned technical scheme, through being close to next one-level lifting blade setting with the second grade lifting blade more, make the distance between second grade lifting blade and the last one-level lifting blade bigger to increased the aggregate and got into the probability of following second grade lifting blade from one-level lifting blade, and then made more aggregates obtain the secondary and raise and spill.

The present invention may be further configured in a preferred embodiment as: the second-level lifting blade is far away from the barrel and inclines towards the last first-level lifting blade.

Through adopting above-mentioned technical scheme, through setting up the slope of second grade lifting blade towards last one-level lifting blade, make the second grade lifting blade rotate to the level of barrel when radial, the second grade lifting blade can radially become certain angle with the level of barrel, loads the second grade lifting blade tilt up of aggregate for the second grade lifting blade can take the aggregate to more eminence to raise upward and spill, makes the stoving effect of aggregate better.

The present invention may be further configured in a preferred embodiment as: the side of the second-stage lifting blade is radially arranged along the barrel, and the second-stage lifting blade is bent upwards one side far away from the barrel.

Through adopting above-mentioned technical scheme, buckle the setting through the one-level lifting blade that makes progress with the second grade lifting blade, can play certain effect that stops to the aggregate on the second grade lifting blade, with the effect that the slope of the second grade lifting blade set up the same in the above-mentioned scheme to gain the effect of better stoving aggregate.

The present invention may be further configured in a preferred embodiment as: the first-stage lifting blade and the second-stage lifting blade are both arranged on the barrel through angle steel.

Through adopting above-mentioned technical scheme, through setting up one-level lifting blade and second grade lifting blade to all installing in the barrel through the angle steel, make one-level lifting blade and second grade lifting blade can dismantle to be connected in the barrel to be convenient for dismantle clearance, maintenance or change with one-level lifting blade and second grade lifting blade, have the effect of protection barrel, extension barrel life.

The present invention may be further configured in a preferred embodiment as: the one-level lifting blade and the second-level lifting blade are both arranged at the middle part from one end of the feeding barrel to the middle part of the feeding barrel.

Through adopting above-mentioned technical scheme, through setting up one-level lifting blade and second grade lifting blade in the one end to the barrel middle part of barrel feeding, make the aggregate only raise upward and spill between the one end of barrel feeding and barrel middle part to prevent that the aggregate from raising upward and spilling and leading to producing more dust in the one end of barrel ejection of compact, can enough reduce the waste of aggregate, can also reduce the pollution of dust.

The present invention may be further configured in a preferred embodiment as: the barrel is the slope setting, the height that highly is greater than ejection of compact one end of barrel feeding one end.

Through adopting above-mentioned technical scheme, through setting up the barrel slope for the aggregate can move toward the one end of barrel ejection of compact under the effect of gravity, the discharge after the aggregate of being convenient for is dried. Especially to the aggregate that is located barrel ejection of compact one end, because the one end of barrel ejection of compact does not set up one-level lifting blade and second grade lifting blade, make the aggregate can also can slide towards the direction that is close to barrel ejection of compact one end under the condition that does not obtain lifting and spilling after the barrel slope.

The present invention may be further configured in a preferred embodiment as: the inclination angle of the cylinder body is 5-10 degrees.

By adopting the technical scheme, the inclination angle of the cylinder body is controlled to be 5-10 degrees, so that the aggregate drying degree and the convenient discharging can be relatively balanced.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through set up one-level lifting blade and second grade lifting blade in the barrel, when the width of second grade lifting blade is greater than the width of one-level lifting blade, along with the rotation of barrel, raise from the one-level lifting blade and spill down the aggregate can get into on the second grade lifting blade afterwards, raise from the second grade lifting blade after second grade lifting blade rotates again and spill down, also throw from the place that is close to the barrel middle part more exactly and spill down, thereby increased aggregate and barrel hot air's area of contact and the range of spilling of raising, even make when the barrel rotates slower, also can reduce barrel middle part "hollow"'s formation, and then improved aggregate and the interior hot air's of drying-machine heat exchange efficiency, the effect that has improvement aggregate drying efficiency. In addition, compared with the prior art which only has one lifting blade, the aggregate in the utility model is lifted and scattered for the second time from the first-level lifting blade to the second-level lifting blade, so that the drying efficiency of the aggregate is higher;

the position and the shape of the secondary lifting plate are limited, so that the aggregate can be lifted and scattered more fully, and the drying effect of the aggregate is enhanced;

through setting up the barrel slope for the aggregate can move toward the one end of barrel ejection of compact under the effect of gravity, the discharge after the aggregate of being convenient for is dried.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

FIG. 2 is a partial sectional view of the first embodiment of the present invention;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram for showing the relationship between the first-stage material raising plate and the second-stage material raising plate in the first embodiment of the present invention;

FIG. 5 is a schematic structural diagram illustrating a relationship between a feeding pipe and a gas transmission member according to a first embodiment of the present invention;

fig. 6 is a schematic structural diagram of the second embodiment of the present invention for showing the relationship between the first-level material raising plate and the second-level material raising plate.

Reference numerals: 1. a barrel; 11. a base; 2. a heating chamber; 31. rotating the ring; 32. a motor; 4. a first-stage material raising plate; 5. a second-stage material raising plate; 6. angle steel; 7. a thermal insulation layer; 8. a feeding device; 81. an air inlet; 82. an air outlet; 91. a feed hopper; 92. a feed pipe; 101. a gas delivery member; 102. a sleeve; 103. heat absorbing cotton; 1041. an exhaust fan; 1042. and (5) exhausting the air pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1 to 6.

The first embodiment.

Referring to fig. 1, for the utility model discloses an aggregate drying device is used in dry-mixed mortar production, including the barrel 1 that is used for drying the aggregate and the base 11 that is used for supporting barrel 1, the both ends of barrel 1 can the feeding respectively with the ejection of compact, the one end of barrel 1 feeding is equipped with and is used for providing the heating chamber 2 of heat for barrel 1. The end parts of the two ends of the cylinder 1 are provided with a rotating ring 31 and a motor 32 for driving the rotating ring 31 to rotate, and the motor 32 is matched with the rotating ring 31 to drive the cylinder 1 to rotate.

Referring to fig. 2, be equipped with multiseriate one-level lifting blade 4 on the circumference in barrel 1, every one-level lifting blade 4 of being listed as includes a plurality of even one-level lifting blades 4 in interval, one-level lifting blade 4 can be dismantled on one side through angle steel 6 and connect in 1 inner wall of barrel, and radially set up along barrel 1. Still be equipped with multiseriate second grade lifting blade 5 on the 1 periphery of barrel, every second grade lifting blade 5 board includes a plurality of evenly spaced second grade lifting blades 5, and second grade lifting blade 5 can be dismantled on one side through angle steel 6 and connect in 1 inner wall of barrel.

Referring to fig. 2 and 3, each row of the first-stage material raising plates 4 and each row of the second-stage material raising plates 5 are arranged at intervals, and the first-stage material raising plates 4 and the second-stage material raising plates 5 form a ring shape when viewed from the cross section of the cylinder 1. Wherein, the second grade lifting blade 5 rotates with last one-level lifting blade 4 (barrel 1 anticlockwise rotates in the picture, along with the direction of rotation of barrel 1, the distance between the preceding one-level lifting blade 4 of second grade lifting blade 5 is last one-level lifting blade 4) is greater than the distance between second grade lifting blade 5 and the next one-level lifting blade 4 (along with the direction of rotation of barrel 1, one-level lifting blade 4 at the back of second grade lifting blade 5 is next one-level lifting blade 4), the distance that second grade lifting blade 5 separated last one-level lifting blade 4 and second grade lifting blade 5 separated the distance of next one-level lifting blade 4 than be 3: 1-4: 1, preferably, 4 in this example: 1. and, the width (denoted by a in the figure) of the second-level lifting blade 5 is greater than the width of the first-level lifting blade 4, namely, the second-level lifting blade 5 is far away from the middle part of the cylinder 1 on one side of the inner wall of the cylinder 1 and is closer to the middle part of the cylinder 1 than the first-level lifting blade 4.

Along with the rotation of barrel 1, raise from one-level lifting blade 4 and spill down the aggregate can get into on subsequent second grade lifting blade 5, raise from second grade lifting blade 5 after second grade lifting blade 5 rotates and spill down, that is to raise from the place that is closer to barrel 1 middle part more and spill down, thereby increased aggregate and 1 hot air's in the barrel area of contact with raise and spill the scope, even make when barrel 1 rotates when slower, also can reduce barrel 1 middle part "hollow"'s formation, and then improved aggregate and the drying-machine in the hot air's heat exchange efficiency, the effect that has improvement aggregate drying efficiency. And, compare only one kind lifting blade among the prior art, the utility model discloses well aggregate has been raised upward from one-level lifting blade 4 to second grade lifting blade 5 through the secondary and has spilt for the drying efficiency of aggregate is higher.

Preferably, the second grade lifting blade 5 is kept away from barrel 1 and is set up towards the slope of last one-level lifting blade 4 on one side, makes second grade lifting blade 5 rotate to barrel 1's level when radial, and second grade lifting blade 5 can radially become certain angle with barrel 1's level, and the second grade lifting blade 5 tilt up of loading aggregate makes second grade lifting blade 5 can take the aggregate to more eminence to raise and spill, makes the stoving effect of aggregate better.

Referring to fig. 2, one end to barrel 1 middle part of barrel 1 feeding is all located to one-level lifting blade 4 and second grade lifting blade 5, and the one end of the 1 ejection of compact of barrel does not set up one-level lifting blade 4 and second grade lifting blade 5, and such setting makes the aggregate only can raise between the one end of the 1 feeding of barrel and barrel 1 middle part and spill, thereby prevent that the aggregate from raising at the one end of the 1 ejection of compact of barrel and spilling and leading to producing more dust, can enough reduce the waste of aggregate, can also reduce the pollution of dust.

Referring to fig. 1, further, the one end of the ejection of compact of barrel 1 inclines down for the one end of feeding, and the inclination of barrel 1 is the inclination of barrel and is 5 for the aggregate can move toward the one end of the ejection of compact of barrel 1 under the effect of gravity, the discharge after the aggregate of being convenient for is dried. Especially to the aggregate that is located barrel 1 ejection of compact one end, because the one end of the 1 ejection of compact of barrel does not set up one-level lifting blade 4 and second grade lifting blade 5 (one-level lifting blade 4 and second grade lifting blade 5 see fig. 2), make the aggregate can also can slide towards the direction that is close to barrel 1 ejection of compact one end under the condition that does not obtain raising to spill behind the slope of barrel 1. Wherein, the inclination angle of the cylinder 1 in the embodiment is 5 degrees, and in other embodiments, the inclination angle can be 5 degrees to 10 degrees.

Referring to fig. 1, heat required for drying aggregate in a barrel 1 comes from a heating chamber 2, a natural gas pipeline (not shown in the figure) is generally installed on the heating chamber 2, heat is generated by heating natural gas, and then the heat is transmitted into the barrel 1, so that the aggregate is dried. The heating chamber 2 is generally built by bricks, and in order to prevent the heat from being transferred to the bricks and causing the temperature of the heating chamber 2 to rise and scalding operators, a heat insulation layer 7 is arranged outside the heating chamber 2.

Referring to fig. 1, a feeding device 8 is disposed between the heating chamber 2 and the barrel 1, and as shown in fig. 5, the feeding device 8 is hollow and has openings at both sides, and the openings communicate with the inside of the feeding device 8. The feeding device 8 has an air outlet 82 at one side and communicated with the feeding end of the barrel 1 through the air outlet 82, and an air inlet 81 at the other side and communicated with the air outlet end of the heating chamber 2 through the air inlet 81, and hot air in the heating chamber 2 can enter the barrel 1 from the feeding device 8 through the air inlet 81 and the air outlet 82.

Referring to fig. 5, feed arrangement 8 top is equipped with feeder hopper 91, and the intercommunication has inlet pipe 92 on feeder hopper 91, and inlet pipe 92 locates in feed arrangement 8, and the upper end is the arc bending, connects in feeder hopper 91, and the lower extreme is straight shape and extends to gas outlet 82 department, and the aggregate can get into feeder hopper 91, then is carried to barrel 1 through inlet pipe 92.

The feeding device 8 is also provided with an air conveying member 101 capable of conveying air, one end of the air conveying member 101 is in a circular truncated cone shape and is connected to the air inlet 81, the other end of the air conveying member 101 is in a strip shape and extends to the air outlet 82, and hot air can enter the barrel body 1 (shown in figure 1) from the heating chamber 2 through the air conveying member 101, namely, the feeding pipe 92 and the air conveying member 101 are in two independent structures in the feeding device, and aggregate and hot air are conveyed separately. Through such setting, the diffusion of hot air in feed arrangement 8 has been restricted to prevent that hot air from surrounding feed pipe 92 and leading to the temperature of feed pipe 92 to rise, and then make the aggregate that gets into feeder hopper 91 and feed pipe 92 be difficult at the inner wall bonding, sintering blocking, have the effect of preventing to block up feeder hopper 91 and feed pipe 92.

Referring to fig. 5, preferably, the feeding pipe 92 extends out of the air outlet 82, and the air-conveying member 101 does not extend out of the air outlet 82, i.e., the feeding pipe 92 is closer to the drum 1 (see fig. 1) than the air-conveying member 101, so that the distance between the opening of the feeding pipe 92 and the opening of the air-conveying member 101 is increased, and the aggregate is not easy to block the air-conveying member 101 after being discharged from the feeding pipe 92.

In order to further reduce the temperature rise of the feeding pipe 92, the feeding pipe 92 is externally sleeved with a sleeve 102, and both ends of the sleeve 102 extend to both ends of the feeding pipe 92 respectively to surround the outer wall of the feeding pipe 92, so that the feeding pipe 92 can be insulated, the influence of hot air on the feeding pipe 92 is reduced, and the effect of further reducing the temperature of the feeding pipe 92 is achieved. In addition, a gap exists between the feeding pipe 92 and the sleeve 102, and the heat absorption cotton 103 is filled in the gap, so that on one hand, the heat absorption cotton 103 can effectively absorb heat outside the feeding pipe 92, and therefore the influence of hot air on the feeding pipe 92 is smaller. On the other hand, when the aggregate enters the feeding pipe 92, the feeding pipe 92 is easy to vibrate, and the gap and the heat absorption cotton 103 can provide a movable space for the feeding pipe 92, so that the feeding pipe 92 is buffered, and the feeding pipe 92 is protected.

Referring to fig. 1 and fig. 5, further, an exhaust fan 1041 and an exhaust pipe 1042 communicated with the exhaust fan 1041 are disposed on the feeding device 8, one end of the exhaust pipe 1042 far away from the exhaust fan 1041 is communicated with the feeding device 8, and the feeding device 8 is communicated with the exhaust fan 1041 through the exhaust pipe 1042. After the feeding device 8 is communicated with the exhaust fan 1041, the exhaust fan 1041 can exhaust hot air in the feeding device 8, so that air outside the feeding pipe 92 enters from the feeding hopper 91 and exits from the exhaust pipe 1042 to flow, and the purpose of reducing the temperature of the feeding pipe 92 is achieved.

Example two.

Referring to fig. 6, for the utility model discloses an aggregate drying device is used in dry-mixed mortar production, with the difference of embodiment one, barrel 1 is kept away from to second grade lifting blade 5 in this embodiment on one side not towards the slope setting of last one-level lifting blade 4, and barrel 1 radially sets up is followed to second grade lifting blade 5 side in this embodiment, and second grade lifting blade 5 keeps away from barrel 1 and is equipped with the hang plate on one side. The hang plate slope sets up, and the hang plate is connected in second grade lifting blade 5 on one side, and the another side forms the inclined plane towards one-level lifting blade 4 on second grade lifting blade 5. The hang plate can play certain effect of blockking to the aggregate on the second grade lifting blade 5, and is the same with the effect that the slope of second grade lifting blade 5 set up in embodiment one to gain the effect of better stoving aggregate.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides an aggregate drying device is used in dry-mixed mortar production which characterized in that: the lifting device comprises a cylinder body (1), wherein a plurality of first-stage lifting blades (4) and second-stage lifting blades (5) are arranged on the inner circumferential surface of the cylinder body (1), the first-stage lifting blades (4) and the second-stage lifting blades (5) are connected to the inner wall of the cylinder body (1) on one side, the first-stage lifting blades (4) and the second-stage lifting blades (5) are arranged at intervals along the cross section of the cylinder body (1), and the width of the second-stage lifting blades (5) is greater than that of the first-stage lifting blades (4).

2. The aggregate drying device for dry-mixed mortar production according to claim 1, characterized in that: the distance between the second-stage lifting blades (5) and the upper one-stage lifting blades (4) is larger than the distance between the second-stage lifting blades (5) and the lower one-stage lifting blades (4).

3. The aggregate drying device for dry-mixed mortar production according to claim 2, characterized in that: the second-stage lifting blade (5) is obliquely arranged towards the previous first-stage lifting blade (4) on the side away from the barrel (1).

4. The aggregate drying device for dry-mixed mortar production according to claim 2, characterized in that: the side surface of the second-stage lifting blade (5) is radially arranged along the barrel (1), and the second-stage lifting blade (5) is bent and arranged towards one first-stage lifting blade (4) on one side far away from the barrel (1).

5. The aggregate drying device for dry-mixed mortar production according to claim 3 or 4, characterized in that: the first-stage lifting blade (4) and the second-stage lifting blade (5) are both arranged on the barrel (1) through angle steel (6).

6. The aggregate drying device for dry-mixed mortar production according to any one of claims 1 to 4, wherein: the first-stage lifting blade (4) and the second-stage lifting blade (5) are both arranged at the middle part from one end of the feeding barrel (1) to the middle part of the feeding barrel (1).

7. The aggregate drying device for dry-mixed mortar production according to claim 6, characterized in that: the barrel (1) is obliquely arranged, and the height of the feeding end of the barrel (1) is larger than that of the discharging end of the barrel.

8. The aggregate drying device for dry-mixed mortar production according to claim 7, characterized in that: the inclination angle of the cylinder body (1) is 5-10 degrees.

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