阅读说明：本技术 一种砂砾石混合料胶凝材料自落混合拌制装置及方法 (Sand gravel mixture cementing material self-falling mixing and stirring device and method ) 是由 郭光文 余英 石义刚 裴彦青 汪文桥 王�华 李东飞 陈松 镇瑶 程志华 陈勇 于 2021-08-30 设计创作，主要内容包括：一种砂砾石混合料胶凝材料自落混合拌制装置及方法,主要包括装置,该装置包括自落搅拌器、胶凝料混合装置及环形供水装置；自落搅拌器为倾斜的混合溜槽,混合溜槽内设有隔流体；胶凝料混合装置布置在自落搅拌器上端,胶凝料混合装置包括筒体,筒体上设有上下错位布置的水泥螺旋进料装置、粉煤灰螺旋进料装置；环形供水装置包括环形管体,环形管体套在筒体上,环形管体上端与供水管相连、下端均布有多个出水口。本发明提供的一种砂砾石混合料胶凝材料自落混合拌制装置及方法,可快速生产出符合要求的混凝土且降低设备采购、建设与运行成本。(A sand gravel mixture gelled material self-falling mixing stirring device and a method mainly comprise a device, wherein the device comprises a self-falling stirrer, a gelled material mixing device and an annular water supply device; the self-falling stirrer is an inclined mixing chute, and a fluid isolating body is arranged in the mixing chute; the gelled material mixing device is arranged at the upper end of the self-falling stirrer and comprises a barrel, and a cement spiral feeding device and a fly ash spiral feeding device which are arranged in a vertically staggered manner are arranged on the barrel; the annular water supply device comprises an annular pipe body, the annular pipe body is sleeved on the barrel, the upper end of the annular pipe body is connected with the water supply pipe, and a plurality of water outlets are uniformly distributed at the lower end of the annular pipe body. The self-falling mixing and stirring device and the self-falling mixing and stirring method for the sand gravel mixture cementing material can quickly produce concrete meeting the requirements and reduce equipment purchasing, construction and operation costs.)

1. The utility model provides a sand gravel mixture cementitious material is from falling to mix and mixes system device which characterized in that: comprises a self-falling stirrer (1), a gelled material mixing device (2) and an annular water supply device (3);

the self-falling stirrer (1) comprises a mixing chute (1.1), the mixing chute (1.1) is arranged obliquely downwards, a fluid isolating body (1.2) is arranged in the mixing chute (1.1), and the fluid isolating body (1.2) enables materials to be divided, turned and fully mixed;

the device comprises a self-falling stirrer (1), a gelled material mixing device (2) and a coal ash spiral feeding device (2.3), wherein the gelled material mixing device (2) is arranged at the upper end of the self-falling stirrer (1), the gelled material mixing device (2) comprises a barrel (2.1), the barrel (2.1) is provided with the cement spiral feeding device (2.2) and the coal ash spiral feeding device (2.3), and connectors of the cement spiral feeding device (2.2), the coal ash spiral feeding device (2.3) and the barrel (2.1) are arranged in a vertically staggered manner;

the annular water supply device (3) comprises an annular pipe body (3.1), the annular pipe body (3.1) is sleeved on the barrel body (2.1), the upper end of the annular pipe body (3.1) is connected with the water supply pipe (3.2), and a plurality of water outlets are uniformly distributed at the lower end of the annular pipe body.

2. The sand gravel mixture cementitious material self-falling mixing and stirring device as claimed in claim 1, wherein: the upper part of the fluid isolating body (1.2) gradually expands from top to bottom to two sides, and the lower part gradually gathers from top to bottom to the middle.

3. The sand gravel mixture cementitious material self-falling mixing and stirring device as claimed in claim 2, wherein: the fluid isolating body (1.2) is of a diamond-shaped bulge or a cube structure.

4. The sand gravel mixture cementitious material self-falling mixing and stirring device as claimed in claim 1, wherein: the upper parts of the side plates on the left side and the right side of the mixing chute (1.1) are parallel, and the lower parts of the side plates are close and contracted.

5. The method for mixing the sand gravel mixture gel material by the sand gravel mixture gel material self-falling mixing and stirring device according to any one of claims 1 to 4, which comprises the following steps:

step 1), cement and fly ash are respectively conveyed through a cement spiral feeding device (2.2) and a fly ash spiral feeding device (2.3), and the fly ash and the cement are mixed in a barrel-shaped body in proportion to form a cementing material in the falling process of the fly ash and the cement by utilizing the vertical staggered arrangement of the cement spiral feeding device (2.2), the fly ash spiral feeding device (2.3) and the interface of the barrel body (2.1);

step 2), inputting the sand gravel mixture from the upper end of the self-falling stirrer (1); meanwhile, the gel mixing device (2) and the annular water supply device (3) output gel materials and water at the upper part of the falling track of the mixed sand gravel; the sand gravel mixture, the falling cementing material and water are mixed to form an aggregate mixture;

step 3), enabling the glue-collecting mixture to slide downwards along a groove body of the self-falling stirrer (1) by utilizing potential energy formed by the gravity of the glue-collecting mixture, dividing the downwards-sliding glue-collecting mixture into two parts which slide downwards and outwards when the glue-collecting mixture reaches a rhombic fluid-isolating body in the middle of the self-falling stirrer (1), and enabling the two parts of the downwards-sliding glue-collecting mixture to be blocked by an inner-buckled side plate of the self-falling stirrer (1) to change the flow direction so that the original glue-collecting mixture flowing downwards and outwards becomes downwards and inwards opposite impact; the glue-collected mixture slips down and is continuously mixed in the process of changing the flowing direction, and finally is output from an outlet at the lower end of the self-falling stirrer.

Technical Field

The invention relates to concrete mixing equipment, in particular to a self-falling mixing and stirring device and a self-falling mixing and stirring method for a sand gravel mixture cementing material, which are applied to the field of producing concrete by mixing the sand gravel mixture which is not screened and is directly excavated or is simply treated by removing oversize stones with the cementing material.

Background

Some concrete in engineering has low technical requirements, only needs simple mixing, and if the concrete is mixed by a mixing plant, the equipment investment and the mixing cost are high, and the production efficiency is influenced.

The mixing standard of the concrete prepared by directly mixing the sand gravel mixture dug or processed by simply removing the ultrapath stones is improved by using a common mixing plant production mode, obviously, the mixing is uneconomical, so a simpler glue-collected mixture mixing technology is needed, the process is simplified, the work efficiency is improved, the specified mixing requirement can be met, and the concrete meeting the requirement can be quickly prepared.

Disclosure of Invention

The invention aims to solve the technical problem of providing a self-falling mixing and stirring device and a self-falling mixing and stirring method for a sand gravel mixture cementing material, simplifying the stirring process, reducing the equipment manufacturing and installation cost and realizing low-consumption rapid and continuous concrete stirring.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a self-falling mixing and stirring device for a cementing material of a sand gravel mixture comprises a self-falling stirrer, a cementing material mixing device and an annular water supply device;

the self-falling stirrer comprises a mixing chute, the mixing chute is obliquely arranged downwards, and a fluid isolating body is arranged in the mixing chute and enables the materials to be divided, turned and fully mixed;

the device comprises a self-falling stirrer, a cement spiral feeding device, a fly ash spiral feeding device, a cement mixer, a fly ash mixer and a cement mixer, wherein the cement mixer is arranged at the upper end of the self-falling stirrer and comprises a barrel;

the annular water supply device comprises an annular pipe body, the annular pipe body is sleeved on the barrel, the upper end of the annular pipe body is connected with the water supply pipe, and a plurality of water outlets are uniformly distributed at the lower end of the annular pipe body.

The upper part of the fluid isolating body gradually expands from top to bottom to both sides, and the lower part gradually converges from top to bottom to the middle.

The fluid isolating body is of a diamond-shaped bulge or a cube structure.

The upper parts of the side plates on the left side and the right side of the mixing chute are parallel, and the lower parts of the side plates are closed and contracted.

A self-falling mixing and stirring method for a cementing material of a sand gravel mixture comprises the following steps:

step 1), cement and fly ash are respectively conveyed through a cement spiral feeding device and a fly ash spiral feeding device, and the fly ash and the cement are mixed in a barrel body in proportion to form a cementing material in the falling process of the fly ash and the cement by utilizing the vertical staggered arrangement of the cement spiral feeding device, the fly ash spiral feeding device and a joint of the barrel body;

step 2), inputting the sand gravel mixture from the upper end of the self-falling stirrer; meanwhile, the gelled material mixing device and the annular water supply device output gelled materials and water on the upper part of the falling track of the mixed sand gravel; the sand gravel mixture, the falling cementing material and water are mixed to form an aggregate mixture;

step 3), the glue-collecting mixture slips downwards along a groove body of the self-falling stirrer by utilizing potential energy formed by the gravity of the glue-collecting mixture, when the glue-collecting mixture reaches a rhombic fluid-isolating body in the middle of the self-falling stirrer, the slipping glue-collecting mixture is divided into two parts which slip downwards and outwards, the two parts of the slipping mixture are blocked by an inner buckle side plate of the self-falling stirrer to change the flow direction, and the original glue-collecting mixture flowing downwards and outwards is changed into downward and inward hedging; the mixture slips downwards and is continuously mixed in the process of changing the flowing direction, and finally the mixture is output from an outlet at the lower end of the self-falling stirrer.

The invention relates to a self-falling mixing and stirring device and a self-falling mixing and stirring method for a sand gravel mixture cementing material, which have the following technical effects:

1) through setting up the cementitious material mixing arrangement, utilize cement spiral feed arrangement, fly ash spiral feed arrangement can quantitative input cement, fly ash, and through to cement spiral feed arrangement, fly ash spiral feed arrangement can make cement, fly ash carry out intensive mixing and fall down.

2) Through at the annular water supply installation of gelled material mixing arrangement overcoat, still can form the water curtain when providing required water for concrete mixing, eliminate the dust pollution that whereabouts in-process gelled material produced.

3) By arranging the vertical gelled material mixing device and the inclined self-falling stirrer, cement and fly ash can be automatically mixed and fall in the gelled material mixing device, and different materials fall into the mixing chute in different directions and different speeds due to different directions of the gelled material mixing device and the self-falling stirrer, so that the materials can form collision intersection and are mixed when initially falling into the self-falling stirrer; through setting up the inclined mixer that falls certainly, utilize the material dead weight potential energy whereabouts to utilize the fluid separation to realize material reposition of redundant personnel, turn to, and assemble once more, realize the mutual offset mixing of sand gravel mixture, cementitious material, water and stir out the concrete that accords with the requirement.

4) When the concrete is mixed by the glue-collecting mixture, the concrete is not mixed by a self-falling mixer or a forced mixer which needs power driving, so that the energy consumption is saved, the equipment manufacturing and installing operation cost of the whole system is lower, and the continuous and rapid production of the concrete can be realized.

5) The prior patent such as patent number ZL200820081664.5, a device for mixing flocculant solution and ore pulp, adopts a reversing mechanism arranged in a chute to realize turbulent mixing, in the patent, materials slide along an inclined slide carriage and slide to the other side after sliding down, only reversing is performed, and the mixing effect is not obvious. And this application adds the in-process at the material, has tentatively mixed in the air, and the mixture falls into from the agitator after, because of facing to the rhombohedron tip, is divided into two parts direction slant swift current by the rhombohedron, and the lower extreme is slided to one side, is kept off from the agitator curb plate again and returns, makes two strands of materials be in the same place again. Namely, the mixing process is reversed, and the flow is divided and converged again, so that the mixing uniformity is improved.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic view of the self-dropping agitator according to the present invention.

FIG. 3 is a schematic diagram of the operation of the self-dropping mixer of the present invention.

Fig. 4 is a schematic view of a gel mixing device of the present invention.

In the figure: the device comprises a self-falling stirrer 1, a mixing chute 1.1, a fluid isolating body 1.2, a gelled material mixing device 2, a barrel 2.1, a cement spiral feeding device 2.2, a fly ash spiral feeding device 2.3, an annular water supply device 3, an annular pipe body 3.1 and a water supply pipe 3.2.

Detailed Description

As shown in fig. 1, a sand gravel mixture cementing material self-falling mixing device comprises a self-falling stirrer 1, a cementing material mixing device 2 and an annular water supply device 3, wherein the sand gravel mixture is input from the feed end of the self-falling stirrer 1, the cementing material mixing device 2 and the annular water supply device 3 are arranged on the upper part of the falling track of the sand gravel mixture, the cementing material (cement, fly ash) and water are added through the cementing material mixing device 2 and the annular water supply device 3, and the sand gravel mixture intersects and mixes with the falling cementing material and the falling water to form a cementing mixture in the falling process.

As shown in fig. 2, the self-falling stirrer 1 comprises a mixing chute 1.1, wherein the mixing chute 1.1 is a tank structure with a hollow middle, baffles at two sides, an upper flat baffle, a lower flat baffle, an upper wide baffle and a lower inward contraction. The self-falling stirrer is obliquely arranged, and the inner buckle end of the side plate faces downwards. The inclined placement angle of the self-falling stirrer influences the gliding speed of the glue-aggregate mixture, the mixing quality and the concrete production capacity, and the optimal inclination angle needs to be determined according to the field mixing test effect. The upper end of the self-falling stirrer is a feeding end, and the lower end of the self-falling stirrer is a discharging end. A fluid isolating body 1.2 is arranged in the middle of the mixing chute 1.1, and the fluid isolating body 1.2 is a diamond-shaped bulge.

As shown in fig. 3, the downward sliding glue-collecting mixture can be divided into two parts sliding downward and outward by the diamond-shaped protrusion in the middle of the self-falling stirrer 1, and the two parts of the downward sliding glue-collecting mixture are blocked by the inner-buckled side plate of the self-falling stirrer 1 to change the flow direction, so that the original downward and outward flowing glue-collecting mixture is changed into downward and inward hedging. The glue-collecting mixture slips down and is continuously mixed with the glue-collecting mixture in the process of changing the flowing direction, meanwhile, the two parts of glue-collecting mixtures are mutually flushed to be more fully mixed, and the concrete mixed and stirred in the way is output from a discharge port at the lower end of the self-falling stirrer 1, so that the continuous and rapid mixing production of the concrete is completed.

As shown in fig. 4, the gel material mixing device 2 includes a cylinder 2.1, the cylinder 2.1 is vertically arranged and the discharge hole is downward. Two spiral feeding devices are connected to the side edge of the barrel body 2.1, and the two spiral feeding devices are respectively a cement spiral feeding device 2.2 and a fly ash spiral feeding device 2.3. The two spiral feeding devices and the 2.1 interface of the cylinder body are arranged in a vertically staggered manner. The two spiral feeding devices respectively convey cement and fly ash, and the supply amount of the cementing material can be controlled by controlling the rotating speed of the spiral feeding device. The fly ash and the cement are mixed in proportion in the barrel body in the falling process.

As shown in fig. 4, the annular water supply device 3 includes an annular tube body 3.1, the annular tube body 3.1 is connected to the water supply tube 3.2, and a certain number of water outlets are uniformly formed at the lower part of the annular tube body 3.1. The annular pipe body 3.1 is sleeved at a proper position at the upper part of the discharge hole of the cylinder body 2.1. The annular water supply device 3 not only can provide the water required for mixing the concrete, but also can eliminate the dust pollution of the falling gelled material. The water supply amount of the annular water supply device is controlled by a flow meter and a control switch, and water can be supplied according to the set amount.

The working principle and the process are as follows:

1) cement and fly ash are respectively conveyed through a cement spiral feeding device 2.2 and a fly ash spiral feeding device 2.3, and the fly ash and the cement are mixed in proportion in a barrel 2.1 in the falling process by utilizing the vertical staggered arrangement of the cement spiral feeding device 2.2 and the fly ash spiral feeding device 2.3 and the interface of the barrel 2.1;

2) the sand gravel mixture is input from the upper end of the self-falling stirrer 1; meanwhile, the gelled material mixing device 2 and the annular water supply device 3 output gelled materials and water on the upper part of the falling track of the mixed sand gravel; the sand gravel mixture, the falling cementing material and water are mixed to form an aggregate mixture;

3) potential energy formed by the gravity of the self-falling stirrer 1 slides downwards along the groove body of the self-falling stirrer 1, the downward sliding glue-collecting mixture is divided into two parts sliding downwards and outwards by the rhombic isolating fluid in the middle of the self-falling stirrer 1, and the two parts of the downward sliding glue-collecting mixture are blocked by the inner-buckled side plate to change the flow direction, so that the original downward and outward flowing glue-collecting mixture is changed into downward and inward hedging. The glue-collecting mixture slips down and is continuously mixed with the glue-collecting mixture in the process of changing the flowing direction, meanwhile, the two parts of glue-collecting mixtures are mutually flushed to be more fully mixed, and the glue-collecting mixture subjected to mixing and stirring is output from the discharge end of the self-falling stirrer 1, so that the continuous and rapid mixing production of the concrete is realized.