CN211729732U - Mixing arrangement is prepared to full-automatic ready-mixed dry-mixed mortar - Google Patents

Abstract

A full-automatic premixed dry-mixed mortar preparing and mixing device comprises a cement tank, an auxiliary material tank for storing mineral admixture, a sand tank for storing dry sand grains, a source material inlet on the cement tank, an auxiliary material tank and the sand tank are respectively communicated with respective pipelines, the cement tank, the source material outlets of the auxiliary material tank and the sand tank are respectively used for conveying respective source materials to the conveying device through discharging pipes which are respectively provided with a meter, the conveying device is used for conveying the respective source materials conveyed from the cement tank, the auxiliary material tank and the sand tank to the lower part feeding hole of the lifting device, the upper part discharging hole of the lifting device is communicated with the feeding hole of the stirrer through a pipeline, the lower part of the stirrer is provided with a dry powder discharging hole which can be used for outputting mixed and stirred into finished mixture, the mixing device is also provided with an automatic sand drying device, and the source material inlet of the sand tank is connected with the sand discharging hole of the automatic sand drying device through a pipeline. The advantages are that: the source material is dry, the mixing efficiency is high, and the proportion of various components in the premixed material can be adjusted.

Description

Mixing arrangement is prepared to full-automatic ready-mixed dry-mixed mortar

Technical Field

The utility model relates to a building engineering material preparation technical field especially indicates a mixing arrangement is prepared to full-automatic ready-mixed dry-mixed mortar.

Background

The current chinese utility model patent of an application number CN201520906553.3 name "a dry powder mixing arrangement" discloses a dry powder mixing arrangement, belongs to dry powder processing machinery field, including the mixing drum, the upper end of mixing drum is provided with the feed inlet, and the lower extreme is provided with the bin outlet, and bin outlet department is provided with the relief valve, is provided with the base in the mixing drum, the inner wall fixed connection of base and mixing drum, be provided with the carousel on the base and be used for driving the rotatory first motor of carousel, be provided with a plurality of stirring subassemblies on the carousel, the stirring subassembly includes stirring vane and second motor, the second motor sets up on the carousel, the second motor is connected with stirring vane's pivot, first motor and second motor are connected with the controller respectively. The utility model discloses a dry powder mixing arrangement that provides has strengthened the mixing action of stirring vane to the powder for mix more evenly, improved the quality of product, strengthened the efficiency of mixing, shortened production cycle. However, the device has a poor effect of controlling the humidity of the dry powder, and the composition ratio of the powder cannot be adjusted, so that the structure of the device needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a mixing arrangement is prepared to full-automatic ready-mixed dry-mixed mortar is provided to above-mentioned prior art current situation, and this mixing arrangement has and prepares the precision height, convenient, and the operation is safe, and raw materials drying is effectual, prepares accurate fast advantage.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this mixing arrangement is prepared to full-automatic ready-mixed dry-mixed mortar, including the cement jar, store the auxiliary material jar of mineral admixture, store the sand jar of dry grains of sand, the source material import on cement jar, auxiliary material jar and the sand jar is linked together its characterized in that with respective pipeline respectively: the device comprises a cement tank, an auxiliary material tank and a sand tank, wherein source material outlets on the cement tank, the auxiliary material tank and the sand tank respectively convey respective source materials to a conveying device through discharging pipes which are respectively provided with a meter, the conveying device conveys the respective source materials conveyed from the cement tank, the auxiliary material tank and the sand tank to a lower part feeding port of a lifting device, an upper part discharging port of the lifting device is communicated with a feeding port of a stirrer through a pipeline, a dry powder discharging port which can output mixed and stirred into a finished product mixture is arranged at the lower part of the stirrer, an automatic sand drying device is further arranged in the mixing device, and a source material inlet of the sand tank is connected with a sand discharging port of the automatic sand drying device through a pipeline.

As an improvement, the number of the cement tanks is preferably N, the number of the auxiliary material tanks is M, the number of the sand tanks is W, the number of the cement tanks is N, the number of the auxiliary material tanks is M, and the number of the sand tanks is W, and the number of the auxiliary material tanks is N and the number of the sand tanks are respectively arranged on two sides of a conveying.

The auxiliary material tank comprises an ore powder tank, a coal ash tank and a thickening powder tank, the source material inlets of the ore powder tank, the coal ash tank and the thickening powder tank are respectively communicated with respective pipelines, and the source material outlets of the ore powder tank, the coal ash tank and the thickening powder tank are respectively connected with respective discharge pipes provided with meters.

In a further improvement, the fly ash tank can preferably consist of two separate tanks of fly ash, wherein the two separate tanks of fly ash 1# and 2# respectively store the fly ash.

As an improvement, the conveying device comprises a conveying support, a conveying roller arranged on the conveying support, a conveying belt tensioned on the conveying roller and a conveying roller driving motor, wherein the conveying roller is connected with a conveying shaft of the conveying roller driving motor in a transmission manner, one end of the conveying belt extends into a feeding hole of the lifting device, outlets of discharging pipes respectively provided with a meter are respectively positioned above the conveying belt, and the respective source materials fall onto the conveying belt from the outlets of the discharging pipes and are conveyed to the lifting device by the conveying belt.

The improved material conveying device is characterized in that the lifting device comprises a vertically arranged material conveying pipeline, an air blower capable of blowing out strong wind to the top of the material conveying pipeline is arranged at the bottom of the material conveying pipeline, a lower feed inlet capable of enabling source materials conveyed by a conveying belt to enter an inner cavity of the material conveying pipeline is formed in the side wall of the lower portion of the material conveying pipeline, and the top of the material conveying pipeline is communicated with an inlet of a stirrer.

In a further improvement, the dry powder discharge port of the stirrer can be preferably communicated with the dry powder packaging machine and the dry powder storage pool through pipelines respectively.

As an improvement, cameras can be preferably and respectively arranged on one side of the cement tank, the auxiliary material tank, the sand tank, the metering device, the stirrer and the conveying device and in the lifting device, the cameras are respectively connected with the control terminal through lines, and the operation process of the mixing device can be directly observed through monitoring videos in the control terminal.

As an improvement, the automatic sand drying device comprises a shell and a heating cylinder arranged in an inner cavity of the shell, wherein a shell inlet and a shell outlet are arranged on the shell, the shell inlet is positioned above a cylinder body of the heating cylinder, sand entering the inner cavity of the shell from the shell inlet falls onto the heating cylinder, the shell comprises a roller and positioning shells which are arranged at two sides of the roller and seal openings at two sides of the roller, the roller is connected with a roller driving device, one end of the heating cylinder is connected with a heating device capable of heating the wall of the heating cylinder, the other end of the heating cylinder penetrates through the positioning shell at one side and extends into the inner cavity of the roller, the shell inlet is arranged at the top of the positioning shell penetrating with the heating cylinder, a shell baffle plate for guiding the sand falling from the heating cylinder to enter the inner cavity of the roller is arranged in the positioning shell, and a spiral baffle plate for pushing the sand in the roller to be conveyed forwards is arranged on, the sand tank comprises a shell, a shell outlet, a second lifting pipeline, a sand centrifuge, a fine sand outlet and a coarse sand outlet, wherein the shell outlet is located in the lower portion of the other side positioning shell, the shell outlet is communicated with a lower portion inlet of the second lifting pipeline, a second air blower capable of blowing dry sand to the top of the second lifting pipeline is arranged at the bottom of the second lifting pipeline, the lower portion inlet is located on the side wall of the second lifting pipeline above the second air blower, the top of the second lifting pipeline is provided with the sand centrifuge, the sand centrifuge is provided with the fine sand outlet and the coarse sand outlet, and the fine sand outlet and the coarse sand outlet are communicated with a source material inlet of a corresponding.

The rolling rollers are connected with a rolling roller driving motor in a transmission way, two rolling rollers supported with one rolling ring are respectively clung to two sides of the rolling ring to support the rolling ring above the ground, and when the rolling roller driving motor drives the rolling rollers to rotate, the rolling rings drive the roller to rotate relative to the ground.

Compared with the prior art, the utility model has the advantages of: the automatic sand drying device can dry sand to keep the source materials of the mixing device dry, and pre-mixed materials meeting the humidity requirement are manufactured; the metering device can adjust the weight of each component of the premixed material so as to improve the batching precision, obtain the mixture meeting the requirement of a set proportion, and is favorable for obtaining a premixed material finished product close to the optimal proportion at the stirrer; the conveying device conveys the mixture which is metered by the metering device and output to a high place through the lifting device and enters the stirrer for stirring, so that the mixture is fully mixed to form the required premixed material; adopt hierarchical structure, can avoid influencing each other between the step, reduce the batching loss, convenient inspection and maintenance, hierarchical back counter is located the lower part of device, make full use of each partial position relation, the space of reasonable arrangement, the measurement process need not to promote the source material to the eminence and reduces the energy consumption, has reduced the whole height of device, conveniently makes and installs.

Drawings

Fig. 1 is a state diagram of an application of an embodiment of the present invention;

FIG. 2 is a perspective view of a portion of the structure of FIG. 1;

FIG. 3 is a perspective view of FIG. 1 at another angle;

FIG. 4 is a schematic view of the can body of FIG. 2 with portions removed;

FIG. 5 is a top view of the related structure of the tank of FIG. 4;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic structural view of the automatic sand drying device and the sand grabbing and conveying device in FIG. 1;

FIG. 8 is a top view of the housing of FIG. 7;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 8;

FIG. 10 is a schematic view of a portion of the structure of FIG. 1;

FIG. 11 is an enlarged view of portion I of FIG. 10;

fig. 12 is an enlarged view of a portion II in fig. 10.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 12, the fully automatic pre-mixed dry-mixed mortar preparing and mixing device of the embodiment includes a cement tank 11, an auxiliary material tank 12 for storing mineral admixture, and a sand tank 1 for storing dry sand, source material inlets of the cement tank 11, the auxiliary material tank 12, and the sand tank 1 are respectively communicated with respective pipelines, source material outlets of the cement tank 11, the auxiliary material tank 12, and the sand tank 1 are respectively used for conveying respective source materials to a conveying device through respective discharge pipes 14 provided with meters 2, the conveying device is used for conveying respective source materials conveyed from the cement tank 11, the auxiliary material tank 12, and the sand tank 1 to a lower feed inlet of a lifting device, an upper discharge port of the lifting device is communicated with a feed inlet of a stirrer 3 through a pipeline, a dry powder discharge port capable of outputting a mixture mixed and stirred into a finished product is arranged at a lower portion of the stirrer 3, and the mixing device is also provided with an automatic sand drying device, and a source material inlet of the sand tank 1 is connected with a sand discharge hole of the automatic sand drying device through a pipeline. The cement jar 11 has N, the auxiliary material jar 12 has M, husky jar 1 has W, and N cement jar, M auxiliary material jar 12 and W husky jar 1 are arranged respectively on conveyer belt 41 both sides in conveyor, N, M is the natural number that is more than or equal to 1 with W respectively. The auxiliary material tank 12 comprises an ore powder tank, a coal ash tank and a thickening powder tank, the source material inlets of the ore powder tank, the coal ash tank and the thickening powder tank are respectively communicated with respective pipelines, and the source material outlets of the ore powder tank, the coal ash tank and the thickening powder tank are respectively connected with a discharge pipe 14 respectively provided with a meter 2. The fly ash tank is composed of two fly ash sub-tanks, and 1# fly ash and 2# fly ash are stored in the two fly ash sub-tanks respectively. The method comprises the following steps of storing mineral powder in a mineral powder tank, storing fly ash in a fly ash tank, and storing thickening powder in a thickening powder tank, wherein the mineral powder, the fly ash and the thickening powder are common concrete ingredients, and the 1# fly ash and the 2# fly ash are different types of fly ash, and can be known by the skilled person through experience or inquiry. The structure of counter belongs to prior art, is provided with the valve on the discharge gate of counter, realizes weighing to each composition in the inside of counter, and the valve is opened the composition and is left the counter from the discharge gate when reaching the composition weight of settlement. Screw shafts 15 capable of inputting source materials at a source material outlet into the meter 2 are respectively arranged in the discharge pipes 14, the rotation speed of the screw shafts 15 is controlled by the meter 2, a discharge hole capable of outputting mixed materials according to a set component proportion is arranged at the lower part of the meter 2, and the conveying device is arranged below the discharge hole.

The conveying device comprises a conveying support 4, a conveying roller 42 arranged on the conveying support 4, a conveying belt 41 tensioned on the conveying roller 42 and a conveying roller driving motor, wherein the conveying roller 42 is connected with a conveying shaft of the conveying roller driving motor in a transmission manner, one end of the conveying belt 41 extends into a feeding hole of the lifting device, outlets of discharging pipes 14 respectively provided with a meter 2 are respectively positioned above the conveying belt 41, and source materials respectively fall onto the conveying belt 41 from the outlets of the discharging pipes 14 and are conveyed to the lifting device through the conveying belt 41. The lifting device comprises a vertically arranged material conveying pipeline 5, wherein a blower capable of blowing out strong wind to the top of the material conveying pipeline is arranged at the bottom of the material conveying pipeline 5, a lower feed inlet 51 capable of feeding source materials conveyed by a conveyor belt 41 into an inner cavity of the material conveying pipeline is formed in the side wall of the lower portion of the material conveying pipeline, and the top of the material conveying pipeline 5 is communicated with an inlet of the stirrer 3. And a dry powder discharge port of the stirrer 3 can be respectively communicated with the dry powder packaging machine 31 and the dry powder storage tank 32 through pipelines. The cement tank 11, the auxiliary material tank 12, the sand tank 1, the meter 2, one side of the stirrer 3 and the conveying device and the lifting device are respectively provided with a camera 61, the cameras 61 are respectively connected with the control terminal 6 through lines, and the monitoring video in the control terminal 6 can directly observe the operation process of the mixing device.

The automatic sand drying device comprises a shell and a heating barrel 71 arranged in an inner cavity of the shell, wherein a shell inlet and a shell outlet are arranged on the shell, the shell inlet is positioned above a barrel body of the heating barrel, sand entering the inner cavity of the shell from the shell inlet falls onto the heating barrel 71, the shell comprises a roller 7 and positioning shells 72 which are arranged at two sides of the roller 7 and seal openings at two sides of the roller, the roller 7 is connected with a roller driving device, one end of the heating barrel 71 is connected with a heating device 79 capable of heating the wall of the heating barrel, the other end of the heating barrel penetrates through the positioning shell 72 at one side and extends into the inner cavity of the roller, the shell inlet is arranged at the top of the positioning shell 72 penetrating through the heating barrel 71, and a shell baffle 74 for guiding the sand falling from the heating barrel 71 to enter the inner cavity of the roller is arranged in the positioning shell 72, the inner wall of the roller 7 is provided with a spiral baffle 75 for pushing sand in the roller 7 to be conveyed forwards, the shell outlet is positioned at the lower part of the positioning shell 72 at the other side, the shell outlet is communicated with the lower inlet of the second lifting pipeline 8, the bottom of the second lifting pipeline 8 is provided with a second air blower capable of blowing dry sand to the top of the second lifting pipeline 8, the lower inlet is positioned on the side wall of the second lifting pipeline above the second air blower, the top of the second lifting pipeline 8 is provided with a sand centrifuge 81, the sand centrifuge 81 is provided with a fine sand outlet and a coarse sand outlet, and the fine sand outlet and the coarse sand outlet are communicated with the source material inlet of the corresponding sand tank 1 through corresponding pipelines. The specific structure of the roller driving device is that rolling rings 76 are respectively fixed on the outer surfaces of two ends of the roller 7, roller bases 77 are symmetrically arranged on the ground at positions corresponding to the rolling rings 76, rolling rollers 73 capable of rotating relative to the roller bases 77 are arranged on the roller bases 77, the rolling rollers 73 are in transmission connection with a rolling roller driving motor 78, two rolling rollers 73 supported with one rolling ring 76 are respectively attached to two sides of the rolling ring 76 to support the rolling rings 76 above the ground, and when the rolling rollers 73 are driven to rotate by the rolling roller driving motor 78, the rolling rings 76 drive the roller 7 to rotate relative to the ground. Sand centrifuge 81 is prior art, and heating device 79 can adopt the firing equipment commonly used, can be the coil heating also can be steam or burning steam heating, can select suitable equipment for use to heat according to the place size, fuel convenient to use degree, actual conditions such as energy consumption, do not expand and describe.

The automatic sand drying device is connected with a sand grabbing and conveying device 9 which can convey the sand stacked on the site into the automatic sand drying device. The sand grabbing and conveying device 9 can adopt a sand shoveling vehicle or other equipment capable of conveying sand to a high place, and optionally comprises a frame, a moving frame 91 and a collecting hopper 92 which are arranged at the top of the frame and can move back and forth along the top of the frame, wherein a grabbing hand 93 for clamping sand is arranged on the moving frame 91, the moving frame 91 is connected with a moving frame driving motor, the grabbing hand 93 is connected with a grabbing hand control motor for controlling the grabbing hand to open and close and a grabbing hand driving motor for controlling the grabbing hand to move up and down relative to the moving frame 91, a sand conveying belt 94 capable of conveying the sand at a bottom outlet away from the collecting hopper 92 is arranged below the bottom outlet of the collecting hopper 92, two ends of the sand conveying belt 94 are respectively tensioned on a driving roller of the conveying frame, the conveying frame is obliquely arranged relative to the ground, and the upper end of the conveying frame is communicated with an automatic sand drying device, the lower end of the conveying frame is positioned below the bottom outlet, and the driving roller positioned below the bottom outlet is in transmission connection with an output shaft of the conveyor belt driving motor.

The mixing process of the full-automatic concrete dry powder preparation mixing device comprises the following steps,

firstly, introducing dry sand, cement and mineral admixture which are used as source materials into corresponding tank bodies through respective feeding pipes;

secondly, controlling the rotating speed of a screw shaft by a meter, conveying the source material positioned at a source material outlet to the meter by the screw shaft, weighing and metering sand, cement and mineral admixture in the meter, opening a discharge port when the source material reaches a set weight, and dropping the mixture onto a conveying belt of a conveying device;

thirdly, the mixture is input into a lifting device by a conveying belt, and the lifting device introduces the mixture into a stirrer;

fourthly, the mixer stirs the mixture to fully mix the sand, the cement and the mineral admixture to form finished concrete dry powder;

and fifthly, discharging the concrete dry powder out of the device from a dry powder outlet of the stirrer to finish the operation.

Claims (10)

1. The utility model provides a mixing arrangement is prepared to full-automatic ready-mixed dry-mixed mortar, includes cement jar (11), stores auxiliary material jar (12) of mineral admixture, stores sand jar (1) of dry grains of sand, the source material import on cement jar (11), auxiliary material jar (12) and sand jar (1) is linked together its characterized in that with respective pipeline respectively: the device comprises a cement tank (11), an auxiliary material tank (12) and a sand tank (1), wherein source material outlets on the cement tank (11), the auxiliary material tank (12) and the sand tank (1) respectively convey respective source materials to a conveying device through a discharging pipe (14) with a meter (2), the conveying device conveys the respective source materials conveyed from the cement tank (11), the auxiliary material tank (12) and the sand tank (1) to a lower part feeding hole of a lifting device, an upper part discharging hole of the lifting device is communicated with a feeding hole of a stirrer (3) through a pipeline, a dry powder discharging hole capable of outputting mixed materials which are mixed and stirred into finished products is arranged at the lower part of the stirrer (3), an automatic sand drying device is further arranged in the mixing device, and a source material inlet of the sand tank (1) is connected with a sand discharging hole of the automatic sand drying device through a pipeline.

2. The full-automatic ready-mixed dry-mixed mortar preparing and mixing device according to claim 1, characterized in that: cement jar (11) have N, auxiliary material jar (12) have M, sand jar (1) have W, and N cement jar, M auxiliary material jar (12) and W sand jar (1) are arranged respectively on conveyer belt (41) both sides in conveyor, N, M is the natural number that is more than or equal to 1 with W respectively.

3. The full-automatic ready-mixed dry-mixed mortar preparing and mixing device according to claim 1, characterized in that: the auxiliary material tank (12) comprises an ore powder tank, a coal ash tank and a thickening powder tank, the source material inlets of the ore powder tank, the coal ash tank and the thickening powder tank are respectively communicated with respective pipelines, and the source material outlets of the ore powder tank, the coal ash tank and the thickening powder tank are respectively connected with a discharge pipe (14) respectively provided with a meter (2).

4. The full-automatic ready-mixed dry-mixed mortar preparing and mixing device according to claim 3, characterized in that: the fly ash tank is composed of two fly ash sub-tanks, and 1# fly ash and 2# fly ash are stored in the two fly ash sub-tanks respectively.

5. The fully automatic ready-mixed dry-mixed mortar preparing and mixing device according to any one of claims 1 to 4, characterized in that: the conveying device comprises a conveying support (4), conveying rollers (42) arranged on the conveying support (4), a conveying belt (41) tensioned on the conveying rollers (42) and a conveying roller driving motor, wherein the conveying rollers (42) are connected with a conveying shaft of the conveying roller driving motor in a transmission manner, one end of the conveying belt (41) extends into a feeding hole of the lifting device, outlets of discharging pipes (14) respectively provided with a meter (2) are respectively positioned above the conveying belt (41), and source materials respectively fall onto the conveying belt (41) from outlets of the discharging pipes (14) and are conveyed to the lifting device through the conveying belt (41).

6. The full-automatic ready-mixed dry-mixed mortar preparing and mixing device according to claim 5, characterized in that: the lifting device comprises a vertically arranged material conveying pipeline (5), the bottom of the material conveying pipeline (5) is provided with an air blower capable of blowing out strong wind to the top of the material conveying pipeline, a lower feed port (51) capable of feeding source materials conveyed by a conveying belt (41) into an inner cavity of the material conveying pipeline is formed in the side wall of the lower portion of the material conveying pipeline, and the top of the material conveying pipeline (5) is communicated with an inlet of a stirrer (3).

7. The fully automatic ready-mixed dry-mixed mortar preparing and mixing device according to any one of claims 1 to 4, characterized in that: and a dry powder discharge port of the stirrer (3) can be respectively communicated with the dry powder packaging machine (31) and the dry powder storage pool (32) through pipelines.

8. The fully automatic ready-mixed dry-mixed mortar preparing and mixing device according to any one of claims 1 to 4, characterized in that: cement jar (11), auxiliary material jar (12), sand jar (1), counter (2), agitator (3) and conveyor's one side to and be provided with camera (61) in the hoisting device respectively, camera (61) are connected with control terminal (6) through the circuit respectively, mixing arrangement's operation process can directly be observed to the surveillance video in control terminal (6).

9. The fully automatic ready-mixed dry-mixed mortar preparing and mixing device according to any one of claims 1 to 4, characterized in that: the automatic sand drying device comprises a shell and a heating barrel (71) arranged in an inner cavity of the shell, wherein a shell inlet and a shell outlet are formed in the shell, the shell inlet is positioned above a barrel body of the heating barrel, sand entering the inner cavity of the shell from the shell inlet falls onto the heating barrel (71), the shell comprises a roller (7) and positioning shells (72) which are arranged on two sides of the roller (7) and seal openings on two sides of the roller, the roller (7) is connected with a roller driving device, one end of the heating barrel (71) is connected with a heating device (79) capable of heating the barrel wall of the heating barrel, the other end of the heating barrel penetrates through the positioning shell (72) on one side and extends into the inner cavity of the roller, the shell inlet is arranged at the top of the positioning shell (72) through which the heating barrel (71) is arranged, and a shell baffle (74) for guiding the sand sliding down from the heating barrel (71) to enter the inner cavity of the roller is arranged in the positioning shell (, the sand drying device is characterized in that a spiral baffle (75) for pushing sand in the roller (7) to be conveyed forwards is arranged on the inner wall of the roller (7), the shell outlet is located at the lower part of the other side positioning shell (72), the shell outlet is communicated with the lower part inlet of the second lifting pipeline (8), a second air blower capable of blowing dry sand to the top of the second lifting pipeline (8) is arranged at the bottom of the second lifting pipeline (8), the lower part inlet is located on the side wall of the second lifting pipeline above the second air blower, a sand centrifugal machine (81) is arranged at the top of the second lifting pipeline (8), a fine sand outlet and a coarse sand outlet are arranged on the sand centrifugal machine (81), and the fine sand outlet and the coarse sand outlet are communicated with the source material inlet of the corresponding sand tank (1) through corresponding pipelines.

10. The fully automatic ready-mixed dry-mixed mortar preparing and mixing device according to claim 9, characterized in that: the roller driving device is characterized in that rolling rings (76) are respectively fixed on the outer surfaces of two ends of a roller (7), roller seats (77) are symmetrically arranged on the ground at positions corresponding to the rolling rings (76), rolling rollers (73) capable of rotating relative to the roller seats (77) are arranged on the roller seats (77), the rolling rollers (73) are in transmission connection with a rolling roller driving motor (78), two rolling rollers (73) supported by one rolling ring (76) are respectively attached to two sides of the rolling ring (76) to support the rolling ring (76) above the ground, and when the rolling roller driving motor (78) drives the rolling rollers (73) to rotate, the rolling rings (76) drive the roller (7) to rotate relative to the ground.

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