CN206801873U - Double-fluid grouting machine - Google Patents

Abstract

Double-fluid grouting machine provided by the utility model, including pumping system and hybrid system；Wherein pumping system includes two mutual independent variable speed electric motors, particularly, single-screw (single screw) pump and and raw material storage tanks；The double-fluid grouting machine that the utility model is related to can ensure that the accurate quantification of two kinds of liquid matches by the rotating speed of variable speed electric motors, particularly change single-screw (single screw) pump, solve the problems, such as that the existing expected intensity of the mixing of the slurries caused by burden control is inaccurate has been damaged and subtract；Meanwhile overcome traditional plunger infusion slurry as pumping system from single-screw (single screw) pump and the shortcomings that pulsation be present, the utility model is simple in construction, easy to operate.

Description

Double Liquid Grouting Machine

technical field

The utility model relates to the field of grouting construction, in particular to a double-fluid grouting machine.

Background technique

The two-liquid grouting machine leads the colloid and the curing agent to the slurry outlet for mixing, and then injects the mixed slurry, and the cement forms strength after solidification, thereby playing a reinforcing role. Grouting is widely used in tunnels, roads, bridges, dams, mine construction and construction and other fields. However, most of the existing double-fluid grouting machines are in the form of plunger pumps. There are pulsations in the grouting process, and the pulsations in the grouting process have impacts on the surrounding rocks; and there are also problems of narrow ratio adjustment range and inaccurate control. As a result, the expected strength of grout mixing will be reduced, which will affect the overall grouting quality.

Contents of the invention

The purpose of the utility model is to provide a double-fluid grouting machine, which solves the problem that most of the existing double-fluid grouting machines still have inaccurate ratio control, which leads to loss and loss of the expected strength of grout mixing.

In order to achieve the above object, the technical scheme that the utility model adopts is specifically as follows:

The double liquid grouting machine provided by the utility model includes a first pumping system, a second pumping system and a mixing system, wherein the first pumping system includes a first single screw pump, a first pumping pipeline and a first A raw material storage tank, wherein the first single screw pump is provided with a first speed-regulating motor to provide power thereto, the feed port of the first single screw pump is connected to the first raw material storage tank, and the discharge of the first single screw pump The port is connected to the mixing system through the first pumping line;

The second pumping system includes a second single-screw pump, a second speed-regulating motor, a second pumping pipeline and a second raw material storage tank, wherein the second speed-regulating motor provides power to the second single-screw pump, and the second unit The feed port of the screw pump is connected to the second raw material storage tank, and the discharge port of the second single screw pump is connected to the mixing system through the second pumping pipeline.

Preferably, a first flow meter, a first pressure gauge and a first water blocking check valve are arranged in sequence from the outlet of the first single-screw pump to the mixing system on the first pumping pipeline; A second flowmeter, a second pressure gauge and a second water-blocking one-way valve are arranged sequentially from the discharge port of the second single-screw pump to the mixing system.

Preferably, the mixing system includes a mixing agitator and an agitator shaft, wherein one end of the agitator shaft is provided with an agitator drive motor providing power thereto, and the other end is connected with a stirring blade placed in the mixing agitator; meanwhile, the mixing The agitator is provided with a first grouting inlet, a second grouting inlet and a grouting outlet, wherein the first grouting inlet is connected to the first pumping pipeline through the first mixing pipeline on the mixing system; The slurry inlet is connected with the second pumping line through the second mixing line on the mixing system.

Preferably, the mixing agitator includes a mixing tank body with a cavity structure, one end of the mixing tank body is provided with a top end cover, and the other end is provided with a bottom end cover, wherein the slurry outlet is opened on the top end cover, and the first grouting inlet , The second grouting inlet is opened on the bottom end cover; at the same time, the bottom end cover is also provided with a mounting hole and two annular sealing grooves capable of installing shaft seal rings, wherein the mounting holes are the same as the two sealing grooves At the same time, a seal indicator hole is provided between the two seal grooves, and the seal indicator hole communicates with the installation hole, and the installation hole communicates with the cavity structure of the mixing tank body.

Preferably, the drive motor of the agitator is installed on the motor frame, and a bearing support is arranged between the motor frame and the bottom end cover, and a first bearing and a second bearing are installed in the bearing support, and the rotating shaft of the agitator is connected to the two matching bearings.

Preferably, several baffles are evenly distributed in the cavity structure of the stirring tank body to promote more uniform stirring.

Preferably, a liquid discharge two-position three-way valve is arranged on the first mixing pipeline.

Preferably, the double-fluid grouting machine further includes a cleaning system, the cleaning system includes a cleaning pump and a cleaning pump driving motor providing power thereto, wherein the cleaning pump is connected to the mixing system through a cleaning pipeline.

Preferably, the cleaning pipeline is divided into two branches through the first three-position three-way valve, including the first cleaning pipeline branch and the second cleaning pipeline branch, and the first cleaning pipeline branch is provided with a first slurry blocking one-way valve, and is connected with the first pumping pipeline; the second cleaning pipeline branch is provided with a second slurry check valve, and is connected with the second pumping pipeline, and the cleaning pipeline is provided with a safety valve, and the safety The valve is installed between the first three-position three-way valve and the cleaning pump.

Compared with the prior art, the beneficial effects of the utility model are:

The double-liquid grouting machine provided by the utility model includes a pumping system and a mixing system; wherein the pumping system includes two mutually independent variable speed motors, a single screw pump and a raw material storage tank; the double-liquid grouting involved in the utility model The machine can change the speed of the single-screw pump through the variable-speed motor to ensure the precise quantitative ratio of the two liquids, which solves the problem that the expected intensity of slurry mixing is reduced due to inaccurate ratio control; at the same time, the single-screw pump is selected The screw pump is used as a pumping system, because the pumping process of the single screw pump is similar to the vane pump, but the use pressure is higher, and it can be applied to liquids with higher viscosity, and the pumping process of the single screw pump is similar to multiple sinusoidal curves Superposition, the pumping pulsation value is zero in theory, thus overcoming the disadvantage of pulsation in traditional plunger pump grouting, the utility model has simple structure and convenient operation.

Further, the pressure gauge and flow gauge set on the connection management of the pumping system and the mixing system are convenient for real-time observation during the grouting process; at the same time, the water blocking check valve is set to prevent clean water from flowing into the pump during the cleaning process .

Further, the mixing agitator with a driving motor makes the mixing more sufficient; it can be applied to the mixing of glue with higher viscosity and more difficult stirring and mixing.

Further, the seal groove is set at the connection between the agitator shaft and the mixing agitator, and the shaft seal ring can be installed inside the seal ring groove, which can prevent the motor from being damaged due to the high-pressure seepage slurry flowing into the agitator drive motor. At the same time, there is a seal indicator hole to The seepage slurry is discharged from the side, and at the same time, it can be judged whether the seal is invalid by monitoring the amount of seepage slurry.

Further, two bearings are used to support the rotating shaft of the agitator, and ensure the coaxiality of the rotating shaft of the agitator and the shaft seal of the stirring tank.

Furthermore, the cleaning system provided can clean the grouting mixing device in all directions to ensure the cleanliness of the pipeline of the grouting machine; it can effectively prevent the residual grout from coagulating and blocking the grouting system.

Further, the slurry blocking one-way valve provided on the cleaning pipeline is used to prevent the slurry from entering the cleaning pump and blocking the cleaning system.

Furthermore, the safety valve installed on the cleaning pipeline is used to prevent damage to the pumping and cleaning system caused by blind work under the condition that the cleaning of the previous work was not complete and the grouting pipeline was blocked.

Description of drawings

Fig. 1 is the schematic diagram of the principle of the utility model;

Fig. 2 is a structural layout diagram of the utility model;

Figure 3 is a sectional view of the mixing system;

Fig. 4 is the top view of mixing agitator;

Fig. 5 is a sectional view of the bottom end cover;

Figure 6 is a top view of the bottom end cover;

Figure 7 is a cross-sectional view of the end cap;

Among them, 1. The first single screw pump 2, the first speed regulating motor 3, the first raw material storage tank 4, the cleaning pump 5, the cleaning pump driving motor 6, the second speed regulating motor 7, the second raw material storage tank 8, the first Two single-screw pumps 9, a second flow meter 10, a second pressure gauge 11, a second water blocking check valve 12, a second three-way pipe joint 13, a second slurry blocking check valve 14, a mixing agitator 15, a stirring Paddle 16, slurry outlet connection port 17, liquid discharge two-position three-way valve 18, agitator shaft 19, agitator drive motor 20, first three-position three-way valve 21, first slurry blocking one-way valve 22, first Three-way pipe joint 23, first water blocking one-way valve 24, first pressure gauge 25, first flow meter 26, safety valve 27, first bearing 28, second bearing 29, bottom end cover 30, baffle plate 31, Top end cover 32, bearing support 33, motor frame 34, coupling 35, first sealing groove 36, second sealing groove 37, sealing indicator hole 38, first grouting inlet 39, second grouting inlet 40, outlet Oar mouth 41, handle 42, universal wheel.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, a small two-liquid grouting machine provided by the utility model includes a pumping system, a cleaning system and a mixing system, wherein the pumping system and the cleaning system are connected in parallel to the pipeline, and are connected with the mixing system in series.

The pumping system includes a first pumping system and a second pumping system, wherein the first pumping system is a colloid delivery pipeline, and the second pumping system is a curing agent delivery pipeline.

Specifically, the first pumping system includes a first single-screw pump 1, a first speed-regulating motor 2 and a first raw material storage tank 3, wherein the first single-screw pump 1 is provided with a first speed-regulating The motor 2, and its feed port is connected with the first raw material storage tank 3, and the discharge port of the first single screw pump 1 is connected with the mixing system through the first pumping pipeline.

Wherein, a first flow meter 25 , a first pressure gauge 24 and a first water blocking one-way valve 23 are sequentially arranged in the first pumping pipeline from the discharge port of the first single screw pump 1 to the mixing system.

The second pumping system includes a second single-screw pump 8, a second speed-regulating motor 6 and a second raw material storage tank 7, wherein the second speed-regulating motor 6 provides power to the second single-screw pump 8, and the second single-screw pump The feed port of 8 is connected to the second raw material storage tank 7, and the discharge port of the second single screw pump 8 is connected to the mixing system through the second pumping pipeline.

Wherein, a second flow meter 9 , a second pressure gauge 10 and a second water blocking one-way valve 11 are sequentially arranged in the second pumping pipeline from the discharge port of the second single screw pump 7 to the mixing system.

The cleaning system includes a cleaning pump 4 and a cleaning pump drive motor 5 that provides power to the cleaning pump 4, wherein the cleaning pump 4 is connected to the mixing system through a cleaning pipeline.

Wherein, the cleaning pipeline is divided into two branches through the first three-position three-way valve 20, including a first cleaning pipeline branch and a second cleaning pipeline branch, and the first cleaning pipeline branch is connected with the first pumping pipeline , and the first cleaning pipeline branch is provided with a first slurry-resistance one-way valve 21; the second cleaning pipeline branch is connected with the second pumping pipeline, and the second cleaning pipeline branch is provided with a second slurry-resistance one-way valve 13. The cleaning pipeline is provided with a safety valve 26 installed between the first three-position three-way valve 20 and the cleaning pump 4 .

The mixing system includes a first mixing pipeline and a second mixing pipeline, wherein one end of the first mixing pipeline, the first cleaning pipeline branch and the first pumping pipeline are connected by a first three-way pipe joint 22; meanwhile, The other end of the first mixing pipeline is connected with the mixing agitator 14 in the drainage pipeline and the mixing system through the liquid discharge two-position three-way valve 17;

One end of the second mixing pipeline, the second cleaning pipeline branch and the second pumping pipeline are connected through a second three-way pipe joint 12 ; the other end of the second mixing pipeline is connected with a mixing agitator 14 .

As shown in FIG. 2 , the grouting machine is installed in a frame, a universal wheel 42 is provided on the bottom of the frame, and a handle 41 is provided on the upper side to facilitate the movement of the whole structure.

As shown in Figures 3-7, the mixing agitator 14 includes a mixing tank body with a cavity structure, one end of the mixing tank body is provided with a top end cover 31, and the other end is provided with a bottom end cover 29, wherein the top end cover 31 is provided with A slurry outlet 40 is provided, and the slurry outlet 40 is connected with the slurry outlet connection port 16 arranged outside the mixing tank body.

The bottom end cover 29 is provided with a mounting hole and two annular sealing grooves (35, 36), wherein the mounting hole is coaxial with the two sealing grooves (35, 36), and at the same time, the two sealing grooves (35, 36) ) is provided with a sealing indication hole 37, which communicates with the installation hole, and the installation hole communicates with the cavity structure of the mixing tank body.

The agitator rotating shaft 18 is installed in the mounting hole, and one end of the agitator rotating shaft 18 extends into the stirring tank body through the mounting hole, and is connected with the stirring paddle 15 placed in the stirring tank body. The paddle 15 is an open turbine type, and is provided with six blades. At the same time, the blades are inclined at an angle of 45°; its purpose is to match the actual mixing requirements of the grouting process, match the designed shape of the mixing tank, and be able to form during the mixing process. The more complex flow field makes the mixing process more uniform and the mixing efficiency is higher.

The other end of the stirrer rotating shaft 18 is connected with the stirrer driving motor 19 installed on the motor frame 33 through a coupling 34, and a bearing support 32 is arranged between the motor frame 33 and the bottom end cover 29. First bearing 27 and second bearing 28 are installed in the bearing support 32, described agitator rotating shaft 18 cooperates with two bearings (27,28), and agitator rotating shaft 18 is carried out by two bearings (27,28). Support and ensure the coaxiality of the shaft seal of the mixing tank.

Further, several baffles 30 are evenly distributed in the cavity structure of the stirring tank body to promote more uniform stirring.

Further, the bottom end cover 29 is provided with a first grouting inlet 38 and a second grouting inlet 39, wherein the first grouting inlet 38 is connected to the first mixing pipeline; the second grouting inlet 39 is connected to the second mixing pipeline. Pipe connection.

An application of a double liquid grouting machine, comprising the following steps:

Step S1, cleaning each conduit branch:

First adjust the liquid discharge two-position three-way valve 17 in the first mixing pipeline to the state where the grouting circuit is unblocked and the liquid discharge branch is disconnected, then start the agitator drive motor 19 in the mixing system, and the cleaning system in the cleaning system. Drive motor 5 and cleaning pump 4; Then adjust the first three-position three-way valve 20 on the cleaning system to the conduction of the first clean pipeline branch and the second clean pipeline branch conduction, by observing the safety valve (26), Observe whether there is water flowing out from the grouting outlet 16 of the agitator and the safety valve 26; if the safety valve 26 is out of water, turn off the power in time, and check whether the pipeline and the valve body are blocked or damaged;

After water flows out from the grouting outlet 16, adjust the first three-position three-way valve 20 to the first clean pipeline branch or the second clean pipeline branch and open it separately for a period of time, so as to ensure that both pipelines are clean and smooth;

Step S2, the cleaning is completed, and the drainage treatment is performed:

Turn off the drive motor 19 of the agitator, turn off the cleaning drive motor 5 and the cleaning pump 4; adjust the liquid discharge two-position three-way valve 17 until the grouting circuit is disconnected, and the liquid discharge branch is turned on, so that the water inside the mixing agitator 14 is drained clean ;

Step S3, start grouting:

Adjust the valve of the liquid discharge two-position three-way valve 17 again, so that the grouting circuit is unblocked, and the liquid discharge branch is disconnected; then adjust the speed of the first speed regulating motor 2 and the second speed regulating motor 6, thereby controlling the corresponding first The displacement of the single-screw pump 1 and the second single-screw pump 8 reaches the expected ratio; then turn on the agitator drive motor 19, open the two single-screw pumps, and start grouting;

Step S4, after the grouting is finished, shut down the two single-screw pumps at the same time;

Step S5, finally cleaning the grouting machine again: repeat the above steps S1 and S2.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model.

Claims (9)

1. double-fluid grouting machine, it is characterised in that：Including the first pumping system, the second pumping system and hybrid system, wherein, first Pumping system includes the first single-screw (single screw) pump (1), the first pump tubing length and the first raw material storage tanks (3), wherein, the first single-screw (single screw) pump (1) the first buncher (2) for providing it power is provided with, the charging aperture of the first single-screw (single screw) pump (1) and the first raw material store up Tank (3) connection is deposited, the discharging opening of the first single-screw (single screw) pump (1) is connected by the first pump tubing length with hybrid system；

Second pumping system includes the second single-screw (single screw) pump (8), the second buncher (6), the second pump tubing length and the storage of the second raw material Tank (7) is deposited, wherein, the second buncher (6) provides power, the charging aperture of the second single-screw (single screw) pump (8) to the second single-screw (single screw) pump (8) It is connected with the second raw material storage tanks (7), the discharging opening of the second single-screw (single screw) pump (8) is connected to mixed stocker by the second pump tubing length System.

2. double-fluid grouting machine according to claim 1, it is characterised in that：From the first single-screw (single screw) pump on first pump tubing length (1) discharging opening to hybrid system is disposed with first flowmeter (25), first pressure table (24) and first blocks water check valve (23)；On second pump tubing length second flowmeter is disposed with from discharging opening to the hybrid system of the second single-screw (single screw) pump (7) (9), second pressure gauge (10) and second blocks water check valve (11).

3. double-fluid grouting machine according to claim 1, it is characterised in that：Hybrid system includes mixing agitator (14), stirred Device rotating shaft (18) is mixed, wherein, one end of rotating shaft of stirrer (18) is provided with the agitator drive motor (19) for providing it power, The other end is connected with the stirring vane (15) being placed in mixing agitator (14)；Meanwhile is offered on mixing agitator (14) One slip casting import (38), the second slip casting import (39) and grout outlet (40), wherein, the first slip casting import (38) passes through hybrid system On the first mixed pipe line be connected with the first pump tubing length；Second slip casting import (39) passes through the second mixing tube in hybrid system Road is connected with the second pump tubing length.

4. double-fluid grouting machine according to claim 3, it is characterised in that：Mixing agitator (14) includes having cavity structure Agitator tank body, one end of agitator tank body is provided with top end cover (31), and the other end is provided with bottom cover (29), wherein, pulp Mouth (40) is opened on top end cover (31), and the first slip casting import (38), the second slip casting import (39) are opened on bottom cover (29)； Meanwhile mounting hole and two annular seal grooves (35,36) that can install axle sealing ring are further opened with bottom cover (29), its In, the mounting hole and two seal grooves (35,36) coaxially, meanwhile, be provided between two seal grooves (35,36) sealing instruction Hole (37), the sealing indicator hole (37) communicate with mounting hole, and the mounting hole communicates with the cavity structure of agitator tank body.

5. double-fluid grouting machine according to claim 4, it is characterised in that：Agitator drive motor (19) is arranged on motor On frame (33), bearing spider (32) is provided between motor frame (33) and bottom cover (29), is pacified in the bearing spider (32) Equipped with clutch shaft bearing (27) and second bearing (28), the rotating shaft of stirrer (18) is engaged with two bearings (27,28).

6. according to the double-fluid grouting machine described in claim any one of 3-5, it is characterised in that：In the cavity structure of agitator tank body Several are evenly equipped with to promote to stir baffle plate (30) evenly.

7. double-fluid grouting machine according to claim 6, it is characterised in that：Tapping two is provided with first mixed pipe line Position three-way valve (17).

8. double-fluid grouting machine according to claim 1, it is characterised in that：The double-fluid grouting machine also includes cleaning systems, Cleaning systems include wash pump (4) and provide it the wash pump motor (5) of power, wherein, wash pump (4) passes through cleaning Pipeline is connected in hybrid system.

9. double-fluid grouting machine according to claim 8, it is characterised in that：Cleaning channels pass through the first three-position three-way valve (20) It is divided into two branch roads, including the first cleaning pipeline branch road and the second cleaning pipeline branch road, is provided with the first cleaning pipeline branch road First plasma resistance check valve (21), and be connected with the first pump tubing length；Second cleaning pipeline branch road is provided with the second plasma resistance check valve (13), and with the second pump tubing length it is connected, meanwhile, cleaning channels are provided with safety valve (26), and the safety valve (26) is arranged on Between first three-position three-way valve (20) and wash pump (4).