Mixing device for dry powder renders and method of use thereof

Abstract

The application discloses a plaster dry-mixed mortar stirring device and a use method thereof, which comprises a rotating disc, an outer barrel, an inner barrel, a sealing plate, a feeding pipe, a conical material scattering cavity, a material scattering hole, a mixing opening, a water storage cavity, a water inlet and a discharge opening.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dry powder mortar, in particular to a plastering dry powder mortar mixing device and a using method thereof. BACKGROUND

[0002] Mortar is a kind of building material mixed by sand, aggregate and cementing material in a certain proportion, which is used for masonry and plastering engineering. As an essential raw material in the construction industry, it has a good market demand prospect. At present, there are two kinds of preparation processes of dry powder mortar and wet powder mortar on the market, but the wet powder mortar is usually processed by wet method, and the storage time is limited. Therefore, the dry powder mortar is currently more popular.

[0003] Chinese patent authorization announcement No.CN113478654B discloses an automatic multi-layer mixing equipment for dry powder mortar production, which comprises a mixing barrel, the inner wall of the mixing barrel is fixedly connected with a conveying cylinder, the inner wall of the mixing barrel is rotatably connected with a rotating plate one, the inner wall of the rotating plate one is rotatably connected with a rotating plate two, the inner wall of the rotating plate two is rotatably connected with a rotating rod and two stirring rods, the inner wall of the rotating plate one is rotatably connected with two brush plates, the rod arm of the rotating rod is provided with a conveying auger, the lower part of the rotating plate one is provided with a transmission component which enables the two stirring rods to rotate in opposite directions and drives the conveying auger to operate synchronously.

[0004] Chinese patent authorization announcement No.CN113427631B discloses a high-precision automatic environmental protection mortar production equipment, which comprises a processing cylinder, a driving motor is installed at the top center position of the processing cylinder, two groups of front and rear arranged vertical plates are arranged below the processing cylinder, a rotary motor is installed on the front surface of the front vertical plate, a detection bottom plate is installed on the top of the rear vertical plate, an installation sleeve ring is sleeved on the surface of the processing cylinder, a discharge pipe is penetrated and installed at the bottom of the processing cylinder, and a dust suppression structure is sleeved on the surface of the discharge pipe.

[0005] Chinese patent authorization announcement No.CN106335132B discloses a high-efficiency type dry powder mortar mixer, which comprises a support, a motor, a first rotating rod, a first belt pulley, a first bearing seat, a second bearing seat, a connecting block, a supporting rod, a stirring spoon, a second belt pulley, a flat belt and the like.

[0006] The above patents all focus on solving the mixing of dry powder mortar raw materials, and are all mixed by stirring devices such as stirring rods or stirring blades. This stirring method is noisy, and when used on site, dry powder mortar needs to be mixed with water. Generally, a dry powder mortar is surrounded by a dam, water is poured into the middle of the dam, and manual mixing is used immediately. Currently, there is no device for automatically mixing dry powder mortar and water. SUMMARY

[0007] The technical problem to be solved by the present application is that the existing dry powder mortar has no special equipment for mixing water for use on site. Therefore, a plastering type dry powder mortar stirring device and its use method are provided.

[0008] The technical solution of the present application is: a plastering type dry powder mortar stirring device, comprising: a turntable; an outer barrel, the bottom of the outer barrel is connected with the turntable; an inner barrel, the inner barrel is suspended in the outer barrel, the top edge of the inner barrel is fixedly connected with the inner wall of the outer barrel through a folded edge; a sealing plate, the sealing plate is sealingly connected with the inner wall of the inner barrel to divide the inner barrel into two parts; a feeding pipe, the feeding pipe is slidingly connected with the center of the sealing plate, the top of the feeding pipe extends out of the outer barrel; a conical material scattering cavity, the top of the conical material scattering cavity is communicated with the bottom of the feeding pipe; a material scattering hole, the material scattering hole is arranged on the side of the conical material scattering cavity; a mixing port, the mixing port is arranged on the bottom of the inner barrel; a water storage cavity, the water storage cavity is formed between the inner barrel and the outer barrel; a water inlet, the water inlet is arranged above the side wall of the water storage cavity; and a discharge port, the discharge port is communicated below the side wall of the water storage cavity.

[0009] The improvement of the above scheme is that the feeding pipe above the sealing plate is sleeved with an annular pressing plate, the edge of the annular pressing plate leaves a gap with the inner barrel, the edge of the annular pressing plate and the sealing plate are connected through a corrugated pipe, and an exhaust port is arranged on the sealing plate.

[0010] Further improvement of the above scheme is that the inner wall of the outer barrel above the inner barrel is fixedly connected with an annular guide plate, and the annular guide plate is sleeved with the feeding pipe.

[0011] In the above scheme, the annular guide plate is threadedly connected with the feeding pipe.

[0012] In the above scheme, the mixing port is a outwardly folded edge.

[0013] In the above scheme, a plug is installed on the discharge port.

[0014] In the above scheme, the turntable is driven by a power source.

[0015] The method of using the mixing device for plastering dry powder mortar includes the following steps: (1) Block the outlet and inject water into the water storage chamber from the inlet until the water level in the water storage chamber rises to the bottom of the inner barrel; (2) Inject plastering dry powder mortar into the feeding pipe until the conical bulk material chamber is filled, rotate the turntable, and the turntable drives the inner barrel, outer barrel, feeding pipe and conical bulk material chamber to rotate, and the plastering dry powder mortar enters the inner barrel from the bulk material hole; (3) Move the feeding pipe up and down. When the feeding pipe descends, the air in the inner barrel below the sealing plate is discharged into the water storage chamber. When the feeding pipe rises, the inner barrel below the sealing plate generates negative pressure, which draws in the water in the water storage chamber and mixes it with the plastering dry powder mortar. Repeat this process to achieve the mixing of plastering dry powder mortar and water.

[0016] The beneficial effect of this invention is that the design of the inner and outer barrels allows water and dry mortar to be introduced separately and finally mixed in the inner barrel. The negative pressure in the inner barrel drives the water and dry mortar to surge up and down, resulting in good mixing effect and low noise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a mixing device for dry powder mortar used for plastering according to Embodiment 1 of the present invention;

[0018] Figure 2 This is a schematic diagram of the mixing device for plastering dry powder mortar according to Embodiment 2 of the present invention;

[0019] Figure 3 This is a schematic diagram of the rising state of the mixing device for plastering dry powder mortar in Embodiment 3 of the present invention.

[0020] Figure 4 This is a schematic diagram of the descent state of the mixing device for plastering dry powder mortar in Embodiment 3 of the present invention;

[0021] In the diagram, 1. Turntable, 2. Outer barrel, 3. Inner barrel, 4. Folded edge, 5. Sealing plate, 6. Feeding pipe, 7. Conical bulk material cavity, 8. Bulk material hole, 9. Mixing port, 10. Water storage cavity, 11. Water inlet, 12. Discharge port, 13. Annular pressure plate, 14. Corrugated pipe, 15. Exhaust port, 16. Annular guide plate. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments implemented by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] like Figure 1As shown in the figure, the embodiment 1: the mixing device of the rendering dry-mixed mortar of the present application, comprising: a rotating disc 1, which is driven to rotate by a motor; an outer barrel 2, the bottom of which is connected with the rotating disc; an inner barrel 3, which is suspended in the outer barrel, the top edge of the inner barrel is fixed with the inner wall of the outer barrel through a folded edge 4, and the material of the inner barrel is selected to be a light material such as plastic; a sealing plate 5, which is sealingly connected with the inner wall of the inner barrel to divide the inner barrel into two parts, the lower part is used as a mixing space for the dry-mixed mortar and water; a feeding pipe 6, which is slidingly fitted with the center of the sealing plate, by moving the feeding pipe up and down, the length of the feeding pipe below the sealing plate can be changed, and the top of the feeding pipe extends above the outer barrel; a conical scattering cavity 7, the top of which is communicated with the bottom of the feeding pipe; a scattering hole 8, which is opened in the side of the conical scattering cavity, and the scattering hole is preferably inclined downward to facilitate the discharge of the dry-mixed mortar; a mixing port 9, which is opened in the bottom of the inner barrel, and the mixing port is a outwardly folded edge to facilitate the rapid diffusion of water into the inner barrel; a water storage cavity 10, which is formed between the inner barrel and the outer barrel; a water inlet 11, which is opened above the side wall of the water storage cavity; and a discharge port 12, which is communicated below the side wall of the water storage cavity. A plug is installed on the discharge port, and the plug can be installed or removed.

[0024] In use, (1) plug the discharge port, inject a certain amount of water from the water inlet into the water storage cavity until the water level in the water storage cavity rises to the bottom of the inner barrel; (2) inject a certain amount of rendering dry-mixed mortar into the feeding pipe until the conical scattering cavity is filled, rotate the rotating disc, and the rotating disc drives the inner barrel, the outer barrel, the feeding pipe and the conical scattering cavity to rotate, and the rendering dry-mixed mortar enters the inner barrel from the scattering hole; (3) move the feeding pipe up and down, at this time the rotation of the rotating disc can be stopped, when the feeding pipe is lowered, the air in the inner barrel below the sealing plate is discharged into the water storage cavity, pushing the dry-mixed mortar into the water storage cavity from the mixing port, when the feeding pipe is raised, the inner barrel below the sealing plate generates negative pressure, sucking the water and dry-mixed mortar in the water storage cavity, and mixing with the rendering dry-mixed mortar in the inner barrel, so as to realize the sufficient mixing of the rendering dry-mixed mortar and water.

[0025] Embodiment 2, as Figure 2 shown, the difference from embodiment 1 is that the feeding pipe above the sealing plate is sleeved with an annular pressing plate 13, the edge of the annular pressing plate leaves a gap with the inner barrel, the edge of the annular pressing plate and the sealing plate are connected through a bellows 14, and an exhaust port 15 is opened on the sealing plate, through the interlayer formed between the annular pressing plate and the sealing plate, when the feeding pipe is stretched, the bellows is stretched or compressed, the air in the interlayer is blown into the exhaust port, or additional negative pressure is generated to suck the water in the water storage cavity into the inner barrel, enhancing the downward pushing force and upward suction force of the air pressure.

[0026] AsFigures 3-4 As shown in Fig. 3, the difference between Example 3 and Example 1 is that an annular guide plate 16 is fixed to the inner wall of the outer barrel above the inner barrel, and the annular guide plate is sleeved with the feeding pipe. The annular guide plate is used to support the feeding pipe and guide its up and down movement. The annular guide plate is screwed with the feeding pipe, and the annular guide plate is moved up and down by rotating the annular guide plate.

Claims

1. A mixing device for rendering dry powder mortar, characterized by: It comprises: A rotary disc (1); an outer barrel body (2), the bottom of which is connected with the rotary disc; an inner barrel body (3), which is suspended in the outer barrel body, the top edge of which is fixedly connected with the inner wall of the outer barrel body through a folded edge (4); a sealing plate (5), which is sealingly connected with the inner wall of the inner barrel body to divide the inner barrel body into two parts; a feeding pipe (6), which is slidingly fitted with the center of the sealing plate, the top of which extends above the outer barrel body; a conical material scattering cavity (7), the top of which is communicated with the bottom of the feeding pipe; a material scattering hole (8), which is formed in the side of the conical material scattering cavity; a mixing opening (9), which is formed in the bottom of the inner barrel body; a water storage cavity (10), which is formed between the inner barrel body and the outer barrel body; a water inlet (11), which is formed above the side wall of the water storage cavity; and a discharge opening (12), which is communicated below the side wall of the water storage cavity.

2. The apparatus for mixing trowelable dry powder mortar according to claim 1, wherein: An annular pressing plate (13) is sleeved on the feeding pipe above the sealing plate, the edge of the annular pressing plate is left with a gap with the inner barrel body, the edge of the annular pressing plate and the sealing plate are connected through a corrugated pipe (14), and an exhaust port (15) is formed in the sealing plate.

3. The apparatus for mixing trowelable dry-mix mortar according to claim 1, wherein: An annular guide plate (16) is fixedly connected with the inner wall of the outer barrel body above the inner barrel body, and the annular guide plate is sleeved with the feeding pipe.

4. The apparatus for mixing trowelable dry-mix mortar according to claim 3, wherein: The annular guide plate is threadedly connected with the feeding pipe.

5. The apparatus for mixing trowelable dry-mix mortar according to claim 1, wherein: The mixing opening is outwardly folded.

6. The apparatus for mixing trowelable dry-mix mortar according to claim 1, wherein: A plug is installed on the discharge opening.

7. The apparatus for mixing trowelable dry-mix mortar according to claim 1, wherein: The rotary disc is driven by a power source.

8. The method of using the plastering dry-mix mortar mixing device according to any one of claims 1-7, characterized in that: It comprises the following steps: (1) Plugging the discharge opening, water is injected into the water storage cavity from the water inlet until the water level in the water storage cavity rises to the bottom of the inner barrel body; (2) Dry mortar for plastering is injected into the feeding pipe until the conical material scattering cavity is filled, the rotary disc is rotated, the rotary disc drives the inner barrel body, the outer barrel body, the feeding pipe and the conical material scattering cavity to rotate, and the dry mortar for plastering enters the inner barrel body from the material scattering hole; (3) The feeding pipe is moved up and down, when the feeding pipe is lowered, the air in the inner barrel body below the sealing plate is exhausted into the water storage cavity, when the feeding pipe is raised, the inner barrel body below the sealing plate generates negative pressure, water in the water storage cavity is sucked in and mixed with the dry mortar for plastering, and the mixing of the dry mortar for plastering and water is realized through the above steps.

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