CN213563533U

CN213563533U - Concrete mixing device

Info

Publication number: CN213563533U
Application number: CN202022478696.2U
Authority: CN
Inventors: 李梓春
Original assignee: Yunnan Jindu Construction Engineering Co ltd
Current assignee: Yunnan Jindu Construction Engineering Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-29
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a concrete stirring device, which comprises a stirring tank, a cement tank and a gravel tank, wherein the top wall of the stirring tank is provided with a cement inlet hole, a gravel inlet hole and a second water inlet hole; the sand and stone discharging device comprises a sand and stone tank, a first motor, a second stirring shaft, a fixing plate, an air cylinder, a stop plate, a fixing pipe, a first electromagnetic valve, a water discharging pipe and a second electromagnetic valve, wherein the top wall of the sand and stone tank is provided with a sand and stone inlet; a cement inlet is formed in the top wall of the cement tank, and a cement outlet is formed in the bottom wall of the cement tank; a sand-stone inlet pipe is connected between the bottom end of the fixed pipe and the sand-stone inlet hole, and a cement inlet pipe is connected between the cement drainage port and the cement inlet hole; the device is used for reducing the mud content in the sand and stone during concrete mixing.

Description

Concrete mixing device

Technical Field

The utility model relates to a building engineering technical field, concretely relates to concrete mixing device.

Background

Concrete, referred to as "concrete (t you ng)": refers to the general name of engineering composite materials formed by cementing aggregate into a whole by cementing materials. The term concrete generally refers to cement as the cementing material and sand and stone as the aggregate; the cement concrete, also called as common concrete, is obtained by mixing with water (which may contain additives and admixtures) according to a certain proportion and stirring, and is widely applied to civil engineering.

In the formation process of concrete, the mud content in the sand not only can influence the strength of concrete, but also has great influence on the durability and frost resistance of concrete, because the mud content in the concrete can influence the uniformity of the concrete: the clay can influence the cement stone and the broken stone, the adhesion between the cement stones can form unclosed air in the concrete, and the mud-containing expansion ratio and the shrinkage ratio are different from those of the concrete under the condition of freeze thawing, so that the durability of the concrete is influenced.

The sand and stone content is too large, so that the bonding strength of the concrete aggregate interface is reduced, the tensile strength of the concrete is reduced, and the control of the cracks of the concrete is not favorable.

The excessive mud content of the sand and stone can reduce the internal friction between cement and broken stone, increase the internal stress, generate final cracking of sliding and reduce the strength, and the excessive mud can also generate corrosion to reinforcing steel bars and reduce the strength of the reinforcing steel bars.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a concrete mixing device to mud content in the grit when reducing the concrete mixing.

A concrete mixing device comprises a mixing tank, a cement tank and a gravel tank, wherein the cement tank and the gravel tank are both positioned above the mixing tank, a first motor is fixed on the top wall of the mixing tank, a first mixing shaft is connected to an output shaft of the first motor, the first mixing shaft penetrates through the top wall of the mixing tank to enter an inner cavity of the mixing tank, a cement inlet hole, a gravel inlet hole and a second water inlet hole are formed in the top wall of the mixing tank, a concrete discharge hole is formed in the bottom wall of the mixing tank, and a concrete discharge valve is installed at the concrete discharge hole; the top wall of the gravel tank is provided with a gravel inlet, the bottom wall of the gravel tank is provided with a sand discharging port, the top wall of the gravel tank is provided with a first water inlet hole, a second motor is fixed on the top wall of the gravel tank, a second stirring shaft is connected on an output shaft of the second motor and enters the inner cavity of the gravel tank, the side wall of the gravel tank is connected with a fixed plate, the fixed plate is connected with an air cylinder, the output end of the air cylinder is connected with a barrier plate, the barrier plate penetrates through the side wall of the gravel tank and enters the inner cavity of the gravel tank, the barrier plate can divide the inner cavity of the gravel tank into an upper cavity and a lower cavity, the barrier plate is provided with a plurality of sieve holes, the sand discharging port is connected with a fixed pipe, the fixed pipe is provided with a first electromagnetic valve, the side wall of the fixed pipe is connected with a water discharging pipe, the water inlet end of the water discharging, the water inlet end of the water discharge pipe is positioned above the first electromagnetic valve; a cement inlet is formed in the top wall of the cement tank, and a cement outlet is formed in the bottom wall of the cement tank; the bottom end of the fixed pipe and the sand inlet hole are connected with a sand inlet pipe, and the cement outlet and the cement inlet hole are connected with a cement inlet pipe.

In order to solve the problems, the inventor designs the technical scheme, in the technical scheme, a gravel tank and a cement tank are arranged above a stirring tank, gravel enters the stirring tank through the gravel tank, cement enters the stirring tank through the cement tank, when the stirring tank is used, the gravel is firstly poured into the gravel tank, the gravel is positioned above a barrier plate, the aperture of a sieve hole on the barrier plate is small, only scattered gravel and water are generally allowed to be discharged, a first electromagnetic valve is in a closed state, a second electromagnetic valve is in an open state at the moment, water is injected into the gravel tank through a first water inlet hole at the moment, a second motor is started at the same time, a second stirring shaft is driven to rotate to clean the gravel, the second electromagnetic valve is closed after the cleaning is finished, the first electromagnetic valve is opened, then a cylinder moves, the barrier plate is pulled to move, the gravel above the barrier plate falls into the stirring tank, and cement is injected into, through second inlet opening injected water, first motor starts to drive first (mixing) shaft simultaneously and rotates, stirs grit and cement in the agitator tank, so washs the earth in the grit before the stirring, reduces the content of earth in the grit, improves the performance of concrete.

Preferably, the two ends of the cement inlet pipe are respectively and rotationally connected with the cement outlet and the cement inlet hole, the first stirring shaft is connected with a first gear, the cement inlet pipe is connected with a second gear, and the first gear is meshed with the second gear. The both ends of the inlet pipe rotate with the drainage mud mouth and the inlet hole respectively among this technical scheme and are connected, when first motor starts, drive the inlet pipe and rotate, and the dispersion can be faster and the gravel and sand stirring is even when the cement that gets into the agitator tank from the inlet pipe falls.

Preferably, the two ends of the sand inlet pipe are respectively rotatably connected with the fixed pipe and the sand inlet hole, the sand inlet pipe is connected with a third gear, and the third gear is meshed with the first gear. Advance the both ends of gravel pipe among this technical scheme respectively with fixed pipe with advance the grit hole and rotate and be connected, when first motor starts, drive and advance the grit jar and rotate, dispersion can be faster and cement stirring when the grit from advancing the gravel pipe and getting into the agitator tank falls.

Preferably, the inner bottom wall of the stirring tank is integrally inclined downwards from the periphery of the concrete discharge hole to the direction of the concrete discharge hole.

Preferably, the inner bottom wall of the gravel tank is integrally inclined downwards from the periphery of the gravel discharge port to the direction of the gravel discharge port.

Preferably, the inner bottom wall of the cement silo is integrally inclined downwards from the periphery of the sludge discharge port to the direction of the sludge discharge port.

Preferably, the end face of the top end of the sand-feeding pipe is integrally inclined downwards from the outside to the inside.

Preferably, the top end surface of the cement inlet pipe is integrally inclined downward in the outward and inward direction.

The beneficial effects of the utility model are embodied in: in the technical scheme, a gravel tank and a cement tank are arranged above a stirring tank, gravel enters the stirring tank through the gravel tank, cement enters the stirring tank through the cement tank, when the cement mixer is used, the gravel is firstly poured into the gravel tank and is positioned above a barrier plate, the aperture of a sieve hole on the barrier plate is small, only scattered clay and water are generally allowed to be discharged, a first electromagnetic valve is in a closed state, a second electromagnetic valve is in an open state at the moment, water is injected into the gravel tank through a first water inlet hole at the moment, a second motor is simultaneously started to drive a second stirring shaft to rotate to clean the gravel, the cleaning is finished, the second electromagnetic valve is closed, the first electromagnetic valve is opened, then a cylinder moves, the barrier plate is pulled to move to enable the gravel above the barrier plate to fall into the stirring tank, cement is simultaneously injected into the stirring tank through the cement tank, water is injected through a second water inlet hole, the first motor is started to drive, the grit and the cement in the agitator tank are stirred, so the soil in the grit is cleaned before stirring, the content of the soil in the grit is reduced, and the performance of the concrete is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic view of the overall structure of the present invention.

In the attached figure, 1-stirring tank, 2-gravel tank, 3-cement tank, 4-first motor, 5-first stirring shaft, 6-second motor, 7-second stirring shaft, 8-cylinder, 9-baffle plate, 10-drain pipe, 11-gravel inlet pipe, 12-cement inlet pipe, 13-first gear, 14-second gear, 15-first water inlet hole, 16-second water inlet hole, 17-fixed pipe, 18-fixed plate, 19-first electromagnetic valve and 20-third gear.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

As shown in fig. 1, the mixing tank comprises a mixing tank 1, a cement tank 3 and a gravel tank 2, wherein the cement tank 3 and the gravel tank 2 are both located above the mixing tank 1, a first motor 4 is fixed on the top wall of the mixing tank 1, a first mixing shaft 5 is connected to an output shaft of the first motor 4, the first mixing shaft 5 penetrates through the top wall of the mixing tank 1 and enters an inner cavity of the mixing tank 1, a cement inlet hole, a gravel inlet hole and a second water inlet hole 16 are formed in the top wall of the mixing tank 1, a concrete discharge hole is formed in the bottom wall of the mixing tank 1, and a concrete discharge valve is installed at the concrete discharge hole;

the top wall of the gravel tank 2 is provided with a gravel inlet, the bottom wall of the gravel tank 2 is provided with a gravel discharge port, the top wall of the gravel tank 2 is provided with a first water inlet 15, the top wall of the gravel tank 2 is fixed with a second motor 6, an output shaft of the second motor 6 is connected with a second stirring shaft 7, the second stirring shaft 7 enters an inner cavity of the gravel tank 2, the side wall of the gravel tank 2 is connected with a fixed plate 18, the fixed plate 18 is connected with a cylinder 8, the output end of the cylinder 8 is connected with a barrier plate 9, the barrier plate 9 penetrates through the side wall of the gravel tank 2 to enter the inner cavity of the gravel tank 2, the barrier plate 9 can divide the inner cavity of the gravel tank 2 into an upper cavity and a lower cavity, the barrier plate 9 is provided with a plurality of sieve holes, the gravel discharge port is connected with a fixed pipe 17, the fixed pipe 17 is provided with a first electromagnetic valve 19, and, the water inlet end of the water discharge pipe 10 is communicated with the fixed pipe 17, the water inlet end of the water discharge pipe 17 is provided with a second electromagnetic valve, and the water inlet end of the water discharge pipe 17 is positioned above the first electromagnetic valve 19;

a cement inlet is formed in the top wall of the cement tank 3, and a cement outlet is formed in the bottom wall of the cement tank 3;

a sand inlet pipe 11 is connected between the bottom end of the fixed pipe 17 and the sand inlet hole, and a cement inlet pipe 12 is connected between the cement outlet and the cement inlet hole.

In order to mix the gravel and the cement in the stirring tank 1 as soon as possible, in this embodiment, two ends of the cement inlet pipe 12 are respectively rotatably connected with the cement outlet and the cement inlet hole, the first stirring shaft 5 is connected with a first gear 13, the cement inlet pipe 12 is connected with a second gear 14, and the first gear 13 is meshed with the second gear 14. In this embodiment, two ends of the sand inlet pipe 11 are rotatably connected with the fixing pipe 17 and the sand inlet hole respectively, the sand inlet pipe 11 is connected with a third gear 20, and the third gear 20 is engaged with the first gear 13.

The inner bottom wall of the stirring tank 1 in this embodiment is inclined downward from the periphery of the row of concrete holes to the direction of the row of concrete holes as a whole.

In this embodiment, the inner bottom wall of the gravel tank 2 is integrally inclined downwards from the periphery of the gravel discharge port to the direction of the gravel discharge port.

In this embodiment, the inner bottom wall of the cement silo 3 is integrally inclined downward from the periphery of the sludge discharge port to the direction of the sludge discharge port.

In this embodiment, the end surface of the top end of the sand-rock inlet pipe 11 is entirely inclined downward from the outside to the inside.

In this embodiment, the end surface of the top end of the cement inlet pipe 12 is entirely inclined downward in the outward-inward direction.

In the embodiment, the stirring tank 1, the sand tank 2 and the cement tank 3 are fixed through corresponding brackets.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The concrete stirring device is characterized by comprising a stirring tank (1), a cement tank (3) and a gravel tank (2), wherein the cement tank (3) and the gravel tank (2) are both positioned above the stirring tank (1), a first motor (4) is fixed on the top wall of the stirring tank (1), a first stirring shaft (5) is connected onto an output shaft of the first motor (4), the first stirring shaft (5) penetrates through the top wall of the stirring tank (1) to enter the inner cavity of the stirring tank (1), a cement inlet hole, a gravel inlet hole and a second water inlet hole (16) are formed in the top wall of the stirring tank (1), a concrete discharging hole is formed in the bottom wall of the stirring tank (1), and a concrete discharging valve is installed at the concrete discharging hole;

the roof of grit jar (2) has into grit mouth, and the diapire of grit jar (2) has row grit mouth, and the roof of grit jar (2) has first inlet opening (15), is fixed with second motor (6) on the roof of grit jar (2), be connected with second (mixing) shaft (7) on the output shaft of second motor (6), second (mixing) shaft (7) get into grit jar (2) inner chamber, and the lateral wall of grit jar (2) is connected with fixed plate (18), be connected with cylinder (8) on fixed plate (18), the output of cylinder (8) is connected with barrier plate (9), barrier plate (9) pass the lateral wall of grit jar (2) and get into grit jar (2) inner chamber, barrier plate (9) can divide the inner chamber of grit jar (2) into two upper and lower cavities, it has a plurality of sieve meshes to open on barrier plate (9), grit mouth department is connected with fixed pipe (17), a first electromagnetic valve (19) is installed on the fixed pipe (17), the side wall of the fixed pipe (17) is connected with a drain pipe (10), the water inlet end of the drain pipe (10) is communicated with the fixed pipe (17), a second electromagnetic valve is installed at the water inlet end of the drain pipe (10), and the water inlet end of the drain pipe (10) is located above the first electromagnetic valve (19);

a cement inlet is formed in the top wall of the cement tank (3), and a cement drainage port is formed in the bottom wall of the cement tank (3);

a sand inlet pipe (11) is connected between the bottom end of the fixed pipe (17) and the sand inlet hole, and a cement inlet pipe (12) is connected between the cement discharging port and the cement inlet hole.

2. The stirring device as claimed in claim 1, wherein both ends of the cement inlet pipe (12) are rotatably connected with the cement outlet and the cement inlet, respectively, the first stirring shaft (5) is connected with a first gear (13), the cement inlet pipe (12) is connected with a second gear (14), and the first gear (13) is meshed with the second gear (14).

3. A mixer apparatus according to claim 2, wherein both ends of said sand inlet pipe (11) are rotatably connected to said fixed pipe (17) and said sand inlet hole, respectively, and a third gear (20) is connected to said sand inlet pipe (11), said third gear (20) being engaged with said first gear (13).

4. A mixing apparatus according to claim 1, characterised in that the inner bottom wall of the mixing tank (1) is inclined generally downwards from the periphery of the hole array in the direction of the hole array.

5. A mixer device according to claim 1, in which the inner bottom wall of the gravel pot (2) is inclined generally downward from the periphery of the gravel outlet in the direction of the gravel outlet.

6. A mixer apparatus according to claim 1, characterised in that the inner bottom wall of the cement silo (3) is entirely inclined downwards from the periphery of the sludge discharge opening in the direction of the sludge discharge opening.

7. A mixer apparatus according to claim 1, wherein the top end surface of said sand-feeding pipe (11) is inclined downward in the outward-inward direction as a whole.

8. A mixer apparatus according to claim 1, wherein the top end surface of said inlet pipe (12) is inclined downward in the outward-inward direction as a whole.